[compiler-rt] [sanitizer][nfc] Reformat sanitizer_linux sources (PR #73573)
Dimitry Andric via llvm-commits
llvm-commits at lists.llvm.org
Mon Nov 27 14:02:56 PST 2023
https://github.com/DimitryAndric created https://github.com/llvm/llvm-project/pull/73573
None
>From a18e526239b3c925c542cfed32a41b24a3ac6b3d Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dimitry at andric.com>
Date: Mon, 27 Nov 2023 22:52:56 +0100
Subject: [PATCH] [sanitizer][nfc] Reformat sanitizer_linux sources
---
.../lib/sanitizer_common/sanitizer_linux.cpp | 1611 ++++++++---------
.../lib/sanitizer_common/sanitizer_linux.h | 114 +-
.../sanitizer_linux_libcdep.cpp | 447 +++--
.../sanitizer_common/sanitizer_linux_s390.cpp | 164 +-
4 files changed, 1162 insertions(+), 1174 deletions(-)
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp
index 8759d96609e567c..841d7c096292472 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp
@@ -16,101 +16,101 @@
#if SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_NETBSD || \
SANITIZER_SOLARIS
-#include "sanitizer_common.h"
-#include "sanitizer_flags.h"
-#include "sanitizer_getauxval.h"
-#include "sanitizer_internal_defs.h"
-#include "sanitizer_libc.h"
-#include "sanitizer_linux.h"
-#include "sanitizer_mutex.h"
-#include "sanitizer_placement_new.h"
-#include "sanitizer_procmaps.h"
-
-#if SANITIZER_LINUX && !SANITIZER_GO
-#include <asm/param.h>
-#endif
+# include "sanitizer_common.h"
+# include "sanitizer_flags.h"
+# include "sanitizer_getauxval.h"
+# include "sanitizer_internal_defs.h"
+# include "sanitizer_libc.h"
+# include "sanitizer_linux.h"
+# include "sanitizer_mutex.h"
+# include "sanitizer_placement_new.h"
+# include "sanitizer_procmaps.h"
+
+# if SANITIZER_LINUX && !SANITIZER_GO
+# include <asm/param.h>
+# endif
// For mips64, syscall(__NR_stat) fills the buffer in the 'struct kernel_stat'
// format. Struct kernel_stat is defined as 'struct stat' in asm/stat.h. To
// access stat from asm/stat.h, without conflicting with definition in
// sys/stat.h, we use this trick.
-#if SANITIZER_MIPS64
-#include <asm/unistd.h>
-#include <sys/types.h>
-#define stat kernel_stat
-#if SANITIZER_GO
-#undef st_atime
-#undef st_mtime
-#undef st_ctime
-#define st_atime st_atim
-#define st_mtime st_mtim
-#define st_ctime st_ctim
-#endif
-#include <asm/stat.h>
-#undef stat
-#endif
+# if SANITIZER_MIPS64
+# include <asm/unistd.h>
+# include <sys/types.h>
+# define stat kernel_stat
+# if SANITIZER_GO
+# undef st_atime
+# undef st_mtime
+# undef st_ctime
+# define st_atime st_atim
+# define st_mtime st_mtim
+# define st_ctime st_ctim
+# endif
+# include <asm/stat.h>
+# undef stat
+# endif
-#include <dlfcn.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <link.h>
-#include <pthread.h>
-#include <sched.h>
-#include <signal.h>
-#include <sys/mman.h>
-#include <sys/param.h>
-#if !SANITIZER_SOLARIS
-#include <sys/ptrace.h>
-#endif
-#include <sys/resource.h>
-#include <sys/stat.h>
-#include <sys/syscall.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <ucontext.h>
-#include <unistd.h>
-
-#if SANITIZER_LINUX
-#include <sys/utsname.h>
-#endif
+# include <dlfcn.h>
+# include <errno.h>
+# include <fcntl.h>
+# include <link.h>
+# include <pthread.h>
+# include <sched.h>
+# include <signal.h>
+# include <sys/mman.h>
+# include <sys/param.h>
+# if !SANITIZER_SOLARIS
+# include <sys/ptrace.h>
+# endif
+# include <sys/resource.h>
+# include <sys/stat.h>
+# include <sys/syscall.h>
+# include <sys/time.h>
+# include <sys/types.h>
+# include <ucontext.h>
+# include <unistd.h>
-#if SANITIZER_LINUX && !SANITIZER_ANDROID
-#include <sys/personality.h>
-#endif
+# if SANITIZER_LINUX
+# include <sys/utsname.h>
+# endif
-#if SANITIZER_LINUX && defined(__loongarch__)
-# include <sys/sysmacros.h>
-#endif
+# if SANITIZER_LINUX && !SANITIZER_ANDROID
+# include <sys/personality.h>
+# endif
+
+# if SANITIZER_LINUX && defined(__loongarch__)
+# include <sys/sysmacros.h>
+# endif
-#if SANITIZER_FREEBSD
-#include <sys/exec.h>
-#include <sys/procctl.h>
-#include <sys/sysctl.h>
-#include <machine/atomic.h>
+# if SANITIZER_FREEBSD
+# include <machine/atomic.h>
+# include <sys/exec.h>
+# include <sys/procctl.h>
+# include <sys/sysctl.h>
extern "C" {
// <sys/umtx.h> must be included after <errno.h> and <sys/types.h> on
// FreeBSD 9.2 and 10.0.
-#include <sys/umtx.h>
+# include <sys/umtx.h>
}
-#include <sys/thr.h>
-#endif // SANITIZER_FREEBSD
+# include <sys/thr.h>
+# endif // SANITIZER_FREEBSD
-#if SANITIZER_NETBSD
-#include <limits.h> // For NAME_MAX
-#include <sys/sysctl.h>
-#include <sys/exec.h>
+# if SANITIZER_NETBSD
+# include <limits.h> // For NAME_MAX
+# include <sys/exec.h>
+# include <sys/sysctl.h>
extern struct ps_strings *__ps_strings;
-#endif // SANITIZER_NETBSD
+# endif // SANITIZER_NETBSD
-#if SANITIZER_SOLARIS
-#include <stdlib.h>
-#include <thread.h>
-#define environ _environ
-#endif
+# if SANITIZER_SOLARIS
+# include <stdlib.h>
+# include <thread.h>
+# define environ _environ
+# endif
extern char **environ;
-#if SANITIZER_LINUX
+# if SANITIZER_LINUX
// <linux/time.h>
struct kernel_timeval {
long tv_sec;
@@ -123,36 +123,36 @@ const int FUTEX_WAKE = 1;
const int FUTEX_PRIVATE_FLAG = 128;
const int FUTEX_WAIT_PRIVATE = FUTEX_WAIT | FUTEX_PRIVATE_FLAG;
const int FUTEX_WAKE_PRIVATE = FUTEX_WAKE | FUTEX_PRIVATE_FLAG;
-#endif // SANITIZER_LINUX
+# endif // SANITIZER_LINUX
// Are we using 32-bit or 64-bit Linux syscalls?
// x32 (which defines __x86_64__) has SANITIZER_WORDSIZE == 32
// but it still needs to use 64-bit syscalls.
-#if SANITIZER_LINUX && (defined(__x86_64__) || defined(__powerpc64__) || \
- SANITIZER_WORDSIZE == 64 || \
- (defined(__mips__) && _MIPS_SIM == _ABIN32))
-# define SANITIZER_LINUX_USES_64BIT_SYSCALLS 1
-#else
-# define SANITIZER_LINUX_USES_64BIT_SYSCALLS 0
-#endif
+# if SANITIZER_LINUX && (defined(__x86_64__) || defined(__powerpc64__) || \
+ SANITIZER_WORDSIZE == 64 || \
+ (defined(__mips__) && _MIPS_SIM == _ABIN32))
+# define SANITIZER_LINUX_USES_64BIT_SYSCALLS 1
+# else
+# define SANITIZER_LINUX_USES_64BIT_SYSCALLS 0
+# endif
// Note : FreeBSD had implemented both
// Linux apis, available from
// future 12.x version most likely
-#if SANITIZER_LINUX && defined(__NR_getrandom)
-# if !defined(GRND_NONBLOCK)
-# define GRND_NONBLOCK 1
-# endif
-# define SANITIZER_USE_GETRANDOM 1
-#else
-# define SANITIZER_USE_GETRANDOM 0
-#endif // SANITIZER_LINUX && defined(__NR_getrandom)
-
-#if SANITIZER_FREEBSD && __FreeBSD_version >= 1200000
-# define SANITIZER_USE_GETENTROPY 1
-#else
-# define SANITIZER_USE_GETENTROPY 0
-#endif
+# if SANITIZER_LINUX && defined(__NR_getrandom)
+# if !defined(GRND_NONBLOCK)
+# define GRND_NONBLOCK 1
+# endif
+# define SANITIZER_USE_GETRANDOM 1
+# else
+# define SANITIZER_USE_GETRANDOM 0
+# endif // SANITIZER_LINUX && defined(__NR_getrandom)
+
+# if SANITIZER_FREEBSD && __FreeBSD_version >= 1200000
+# define SANITIZER_USE_GETENTROPY 1
+# else
+# define SANITIZER_USE_GETENTROPY 0
+# endif
namespace __sanitizer {
@@ -203,33 +203,33 @@ ScopedBlockSignals::~ScopedBlockSignals() { SetSigProcMask(&saved_, nullptr); }
# endif
// --------------- sanitizer_libc.h
-#if !SANITIZER_SOLARIS && !SANITIZER_NETBSD
-#if !SANITIZER_S390
+# if !SANITIZER_SOLARIS && !SANITIZER_NETBSD
+# if !SANITIZER_S390
uptr internal_mmap(void *addr, uptr length, int prot, int flags, int fd,
u64 offset) {
-#if SANITIZER_FREEBSD || SANITIZER_LINUX_USES_64BIT_SYSCALLS
+# if SANITIZER_FREEBSD || SANITIZER_LINUX_USES_64BIT_SYSCALLS
return internal_syscall(SYSCALL(mmap), (uptr)addr, length, prot, flags, fd,
offset);
-#else
+# else
// mmap2 specifies file offset in 4096-byte units.
CHECK(IsAligned(offset, 4096));
return internal_syscall(SYSCALL(mmap2), addr, length, prot, flags, fd,
offset / 4096);
-#endif
+# endif
}
-#endif // !SANITIZER_S390
+# endif // !SANITIZER_S390
uptr internal_munmap(void *addr, uptr length) {
return internal_syscall(SYSCALL(munmap), (uptr)addr, length);
}
-#if SANITIZER_LINUX
+# if SANITIZER_LINUX
uptr internal_mremap(void *old_address, uptr old_size, uptr new_size, int flags,
void *new_address) {
return internal_syscall(SYSCALL(mremap), (uptr)old_address, old_size,
new_size, flags, (uptr)new_address);
}
-#endif
+# endif
int internal_mprotect(void *addr, uptr length, int prot) {
return internal_syscall(SYSCALL(mprotect), (uptr)addr, length, prot);
@@ -239,25 +239,23 @@ int internal_madvise(uptr addr, uptr length, int advice) {
return internal_syscall(SYSCALL(madvise), addr, length, advice);
}
-uptr internal_close(fd_t fd) {
- return internal_syscall(SYSCALL(close), fd);
-}
+uptr internal_close(fd_t fd) { return internal_syscall(SYSCALL(close), fd); }
uptr internal_open(const char *filename, int flags) {
# if SANITIZER_LINUX
return internal_syscall(SYSCALL(openat), AT_FDCWD, (uptr)filename, flags);
-#else
+# else
return internal_syscall(SYSCALL(open), (uptr)filename, flags);
-#endif
+# endif
}
uptr internal_open(const char *filename, int flags, u32 mode) {
# if SANITIZER_LINUX
return internal_syscall(SYSCALL(openat), AT_FDCWD, (uptr)filename, flags,
mode);
-#else
+# else
return internal_syscall(SYSCALL(open), (uptr)filename, flags, mode);
-#endif
+# endif
}
uptr internal_read(fd_t fd, void *buf, uptr count) {
@@ -276,12 +274,13 @@ uptr internal_write(fd_t fd, const void *buf, uptr count) {
uptr internal_ftruncate(fd_t fd, uptr size) {
sptr res;
- HANDLE_EINTR(res, (sptr)internal_syscall(SYSCALL(ftruncate), fd,
- (OFF_T)size));
+ HANDLE_EINTR(res,
+ (sptr)internal_syscall(SYSCALL(ftruncate), fd, (OFF_T)size));
return res;
}
-#if (!SANITIZER_LINUX_USES_64BIT_SYSCALLS || SANITIZER_SPARC) && SANITIZER_LINUX
+# if (!SANITIZER_LINUX_USES_64BIT_SYSCALLS || SANITIZER_SPARC) && \
+ SANITIZER_LINUX
static void stat64_to_stat(struct stat64 *in, struct stat *out) {
internal_memset(out, 0, sizeof(*out));
out->st_dev = in->st_dev;
@@ -298,9 +297,9 @@ static void stat64_to_stat(struct stat64 *in, struct stat *out) {
out->st_mtime = in->st_mtime;
out->st_ctime = in->st_ctime;
}
-#endif
+# endif
-#if SANITIZER_LINUX && defined(__loongarch__)
+# if SANITIZER_LINUX && defined(__loongarch__)
static void statx_to_stat(struct statx *in, struct stat *out) {
internal_memset(out, 0, sizeof(*out));
out->st_dev = makedev(in->stx_dev_major, in->stx_dev_minor);
@@ -320,26 +319,26 @@ static void statx_to_stat(struct statx *in, struct stat *out) {
out->st_ctime = in->stx_ctime.tv_sec;
out->st_ctim.tv_nsec = in->stx_ctime.tv_nsec;
}
-#endif
+# endif
-#if SANITIZER_MIPS64
+# if SANITIZER_MIPS64
// Undefine compatibility macros from <sys/stat.h>
// so that they would not clash with the kernel_stat
// st_[a|m|c]time fields
-#if !SANITIZER_GO
-#undef st_atime
-#undef st_mtime
-#undef st_ctime
-#endif
-#if defined(SANITIZER_ANDROID)
+# if !SANITIZER_GO
+# undef st_atime
+# undef st_mtime
+# undef st_ctime
+# endif
+# if defined(SANITIZER_ANDROID)
// Bionic sys/stat.h defines additional macros
// for compatibility with the old NDKs and
// they clash with the kernel_stat structure
// st_[a|m|c]time_nsec fields.
-#undef st_atime_nsec
-#undef st_mtime_nsec
-#undef st_ctime_nsec
-#endif
+# undef st_atime_nsec
+# undef st_mtime_nsec
+# undef st_ctime_nsec
+# endif
static void kernel_stat_to_stat(struct kernel_stat *in, struct stat *out) {
internal_memset(out, 0, sizeof(*out));
out->st_dev = in->st_dev;
@@ -352,91 +351,90 @@ static void kernel_stat_to_stat(struct kernel_stat *in, struct stat *out) {
out->st_size = in->st_size;
out->st_blksize = in->st_blksize;
out->st_blocks = in->st_blocks;
-#if defined(__USE_MISC) || \
- defined(__USE_XOPEN2K8) || \
- defined(SANITIZER_ANDROID)
+# if defined(__USE_MISC) || defined(__USE_XOPEN2K8) || \
+ defined(SANITIZER_ANDROID)
out->st_atim.tv_sec = in->st_atime;
out->st_atim.tv_nsec = in->st_atime_nsec;
out->st_mtim.tv_sec = in->st_mtime;
out->st_mtim.tv_nsec = in->st_mtime_nsec;
out->st_ctim.tv_sec = in->st_ctime;
out->st_ctim.tv_nsec = in->st_ctime_nsec;
-#else
+# else
out->st_atime = in->st_atime;
out->st_atimensec = in->st_atime_nsec;
out->st_mtime = in->st_mtime;
out->st_mtimensec = in->st_mtime_nsec;
out->st_ctime = in->st_ctime;
out->st_atimensec = in->st_ctime_nsec;
-#endif
+# endif
}
-#endif
+# endif
uptr internal_stat(const char *path, void *buf) {
-# if SANITIZER_FREEBSD
+# if SANITIZER_FREEBSD
return internal_syscall(SYSCALL(fstatat), AT_FDCWD, (uptr)path, (uptr)buf, 0);
-# elif SANITIZER_LINUX
-# if defined(__loongarch__)
+# elif SANITIZER_LINUX
+# if defined(__loongarch__)
struct statx bufx;
int res = internal_syscall(SYSCALL(statx), AT_FDCWD, (uptr)path,
AT_NO_AUTOMOUNT, STATX_BASIC_STATS, (uptr)&bufx);
statx_to_stat(&bufx, (struct stat *)buf);
return res;
-# elif (SANITIZER_WORDSIZE == 64 || SANITIZER_X32 || \
- (defined(__mips__) && _MIPS_SIM == _ABIN32)) && \
- !SANITIZER_SPARC
+# elif (SANITIZER_WORDSIZE == 64 || SANITIZER_X32 || \
+ (defined(__mips__) && _MIPS_SIM == _ABIN32)) && \
+ !SANITIZER_SPARC
return internal_syscall(SYSCALL(newfstatat), AT_FDCWD, (uptr)path, (uptr)buf,
0);
-# else
+# else
struct stat64 buf64;
int res = internal_syscall(SYSCALL(fstatat64), AT_FDCWD, (uptr)path,
(uptr)&buf64, 0);
stat64_to_stat(&buf64, (struct stat *)buf);
return res;
-# endif
-# else
+# endif
+# else
struct stat64 buf64;
int res = internal_syscall(SYSCALL(stat64), path, &buf64);
stat64_to_stat(&buf64, (struct stat *)buf);
return res;
-# endif
+# endif
}
uptr internal_lstat(const char *path, void *buf) {
-# if SANITIZER_FREEBSD
+# if SANITIZER_FREEBSD
return internal_syscall(SYSCALL(fstatat), AT_FDCWD, (uptr)path, (uptr)buf,
AT_SYMLINK_NOFOLLOW);
-# elif SANITIZER_LINUX
-# if defined(__loongarch__)
+# elif SANITIZER_LINUX
+# if defined(__loongarch__)
struct statx bufx;
int res = internal_syscall(SYSCALL(statx), AT_FDCWD, (uptr)path,
AT_SYMLINK_NOFOLLOW | AT_NO_AUTOMOUNT,
STATX_BASIC_STATS, (uptr)&bufx);
statx_to_stat(&bufx, (struct stat *)buf);
return res;
-# elif (defined(_LP64) || SANITIZER_X32 || \
- (defined(__mips__) && _MIPS_SIM == _ABIN32)) && \
- !SANITIZER_SPARC
+# elif (defined(_LP64) || SANITIZER_X32 || \
+ (defined(__mips__) && _MIPS_SIM == _ABIN32)) && \
+ !SANITIZER_SPARC
return internal_syscall(SYSCALL(newfstatat), AT_FDCWD, (uptr)path, (uptr)buf,
AT_SYMLINK_NOFOLLOW);
-# else
+# else
struct stat64 buf64;
int res = internal_syscall(SYSCALL(fstatat64), AT_FDCWD, (uptr)path,
(uptr)&buf64, AT_SYMLINK_NOFOLLOW);
stat64_to_stat(&buf64, (struct stat *)buf);
return res;
-# endif
-# else
+# endif
+# else
struct stat64 buf64;
int res = internal_syscall(SYSCALL(lstat64), path, &buf64);
stat64_to_stat(&buf64, (struct stat *)buf);
return res;
-# endif
+# endif
}
uptr internal_fstat(fd_t fd, void *buf) {
-#if SANITIZER_FREEBSD || SANITIZER_LINUX_USES_64BIT_SYSCALLS
-#if SANITIZER_MIPS64
+# if SANITIZER_FREEBSD || SANITIZER_LINUX_USES_64BIT_SYSCALLS
+# if SANITIZER_MIPS64
// For mips64, fstat syscall fills buffer in the format of kernel_stat
struct kernel_stat kbuf;
int res = internal_syscall(SYSCALL(fstat), fd, &kbuf);
@@ -451,12 +449,12 @@ uptr internal_fstat(fd_t fd, void *buf) {
# else
return internal_syscall(SYSCALL(fstat), fd, (uptr)buf);
# endif
-#else
+# else
struct stat64 buf64;
int res = internal_syscall(SYSCALL(fstat64), fd, &buf64);
stat64_to_stat(&buf64, (struct stat *)buf);
return res;
-#endif
+# endif
}
uptr internal_filesize(fd_t fd) {
@@ -466,50 +464,46 @@ uptr internal_filesize(fd_t fd) {
return (uptr)st.st_size;
}
-uptr internal_dup(int oldfd) {
- return internal_syscall(SYSCALL(dup), oldfd);
-}
+uptr internal_dup(int oldfd) { return internal_syscall(SYSCALL(dup), oldfd); }
uptr internal_dup2(int oldfd, int newfd) {
# if SANITIZER_LINUX
return internal_syscall(SYSCALL(dup3), oldfd, newfd, 0);
-#else
+# else
return internal_syscall(SYSCALL(dup2), oldfd, newfd);
-#endif
+# endif
}
uptr internal_readlink(const char *path, char *buf, uptr bufsize) {
# if SANITIZER_LINUX
return internal_syscall(SYSCALL(readlinkat), AT_FDCWD, (uptr)path, (uptr)buf,
bufsize);
-#else
+# else
return internal_syscall(SYSCALL(readlink), (uptr)path, (uptr)buf, bufsize);
-#endif
+# endif
}
uptr internal_unlink(const char *path) {
# if SANITIZER_LINUX
return internal_syscall(SYSCALL(unlinkat), AT_FDCWD, (uptr)path, 0);
-#else
+# else
return internal_syscall(SYSCALL(unlink), (uptr)path);
-#endif
+# endif
}
uptr internal_rename(const char *oldpath, const char *newpath) {
-# if (defined(__riscv) || defined(__loongarch__)) && defined(__linux__)
+# if (defined(__riscv) || defined(__loongarch__)) && defined(__linux__)
return internal_syscall(SYSCALL(renameat2), AT_FDCWD, (uptr)oldpath, AT_FDCWD,
(uptr)newpath, 0);
-# elif SANITIZER_LINUX
+# elif SANITIZER_LINUX
return internal_syscall(SYSCALL(renameat), AT_FDCWD, (uptr)oldpath, AT_FDCWD,
(uptr)newpath);
-# else
+# else
return internal_syscall(SYSCALL(rename), (uptr)oldpath, (uptr)newpath);
-# endif
+# endif
}
-uptr internal_sched_yield() {
- return internal_syscall(SYSCALL(sched_yield));
-}
+uptr internal_sched_yield() { return internal_syscall(SYSCALL(sched_yield)); }
void internal_usleep(u64 useconds) {
struct timespec ts;
@@ -523,18 +517,18 @@ uptr internal_execve(const char *filename, char *const argv[],
return internal_syscall(SYSCALL(execve), (uptr)filename, (uptr)argv,
(uptr)envp);
}
-#endif // !SANITIZER_SOLARIS && !SANITIZER_NETBSD
+# endif // !SANITIZER_SOLARIS && !SANITIZER_NETBSD
-#if !SANITIZER_NETBSD
+# if !SANITIZER_NETBSD
void internal__exit(int exitcode) {
-#if SANITIZER_FREEBSD || SANITIZER_SOLARIS
+# if SANITIZER_FREEBSD || SANITIZER_SOLARIS
internal_syscall(SYSCALL(exit), exitcode);
-#else
+# else
internal_syscall(SYSCALL(exit_group), exitcode);
-#endif
+# endif
Die(); // Unreachable.
}
-#endif // !SANITIZER_NETBSD
+# endif // !SANITIZER_NETBSD
// ----------------- sanitizer_common.h
bool FileExists(const char *filename) {
@@ -556,30 +550,30 @@ bool DirExists(const char *path) {
# if !SANITIZER_NETBSD
tid_t GetTid() {
-#if SANITIZER_FREEBSD
+# if SANITIZER_FREEBSD
long Tid;
thr_self(&Tid);
return Tid;
-#elif SANITIZER_SOLARIS
+# elif SANITIZER_SOLARIS
return thr_self();
-#else
+# else
return internal_syscall(SYSCALL(gettid));
-#endif
+# endif
}
int TgKill(pid_t pid, tid_t tid, int sig) {
-#if SANITIZER_LINUX
+# if SANITIZER_LINUX
return internal_syscall(SYSCALL(tgkill), pid, tid, sig);
-#elif SANITIZER_FREEBSD
+# elif SANITIZER_FREEBSD
return internal_syscall(SYSCALL(thr_kill2), pid, tid, sig);
-#elif SANITIZER_SOLARIS
+# elif SANITIZER_SOLARIS
(void)pid;
return thr_kill(tid, sig);
-#endif
+# endif
}
-#endif
+# endif
-#if SANITIZER_GLIBC
+# if SANITIZER_GLIBC
u64 NanoTime() {
kernel_timeval tv;
internal_memset(&tv, 0, sizeof(tv));
@@ -590,19 +584,19 @@ u64 NanoTime() {
uptr internal_clock_gettime(__sanitizer_clockid_t clk_id, void *tp) {
return internal_syscall(SYSCALL(clock_gettime), clk_id, tp);
}
-#elif !SANITIZER_SOLARIS && !SANITIZER_NETBSD
+# elif !SANITIZER_SOLARIS && !SANITIZER_NETBSD
u64 NanoTime() {
struct timespec ts;
clock_gettime(CLOCK_REALTIME, &ts);
return (u64)ts.tv_sec * 1000 * 1000 * 1000 + ts.tv_nsec;
}
-#endif
+# endif
// Like getenv, but reads env directly from /proc (on Linux) or parses the
// 'environ' array (on some others) and does not use libc. This function
// should be called first inside __asan_init.
const char *GetEnv(const char *name) {
-#if SANITIZER_FREEBSD || SANITIZER_NETBSD || SANITIZER_SOLARIS
+# if SANITIZER_FREEBSD || SANITIZER_NETBSD || SANITIZER_SOLARIS
if (::environ != 0) {
uptr NameLen = internal_strlen(name);
for (char **Env = ::environ; *Env != 0; Env++) {
@@ -611,7 +605,7 @@ const char *GetEnv(const char *name) {
}
}
return 0; // Not found.
-#elif SANITIZER_LINUX
+# elif SANITIZER_LINUX
static char *environ;
static uptr len;
static bool inited;
@@ -621,13 +615,13 @@ const char *GetEnv(const char *name) {
if (!ReadFileToBuffer("/proc/self/environ", &environ, &environ_size, &len))
environ = nullptr;
}
- if (!environ || len == 0) return nullptr;
+ if (!environ || len == 0)
+ return nullptr;
uptr namelen = internal_strlen(name);
const char *p = environ;
while (*p != '\0') { // will happen at the \0\0 that terminates the buffer
// proc file has the format NAME=value\0NAME=value\0NAME=value\0...
- const char* endp =
- (char*)internal_memchr(p, '\0', len - (p - environ));
+ const char *endp = (char *)internal_memchr(p, '\0', len - (p - environ));
if (!endp) // this entry isn't NUL terminated
return nullptr;
else if (!internal_memcmp(p, name, namelen) && p[namelen] == '=') // Match.
@@ -635,18 +629,18 @@ const char *GetEnv(const char *name) {
p = endp + 1;
}
return nullptr; // Not found.
-#else
-#error "Unsupported platform"
-#endif
+# else
+# error "Unsupported platform"
+# endif
}
-#if !SANITIZER_FREEBSD && !SANITIZER_NETBSD && !SANITIZER_GO
+# if !SANITIZER_FREEBSD && !SANITIZER_NETBSD && !SANITIZER_GO
extern "C" {
SANITIZER_WEAK_ATTRIBUTE extern void *__libc_stack_end;
}
-#endif
+# endif
-#if !SANITIZER_FREEBSD && !SANITIZER_NETBSD
+# if !SANITIZER_FREEBSD && !SANITIZER_NETBSD
static void ReadNullSepFileToArray(const char *path, char ***arr,
int arr_size) {
char *buff;
@@ -659,20 +653,21 @@ static void ReadNullSepFileToArray(const char *path, char ***arr,
}
(*arr)[0] = buff;
int count, i;
- for (count = 1, i = 1; ; i++) {
+ for (count = 1, i = 1;; i++) {
if (buff[i] == 0) {
- if (buff[i+1] == 0) break;
- (*arr)[count] = &buff[i+1];
+ if (buff[i + 1] == 0)
+ break;
+ (*arr)[count] = &buff[i + 1];
CHECK_LE(count, arr_size - 1); // FIXME: make this more flexible.
count++;
}
}
(*arr)[count] = nullptr;
}
-#endif
+# endif
static void GetArgsAndEnv(char ***argv, char ***envp) {
-#if SANITIZER_FREEBSD
+# if SANITIZER_FREEBSD
// On FreeBSD, retrieving the argument and environment arrays is done via the
// kern.ps_strings sysctl, which returns a pointer to a structure containing
// this information. See also <sys/exec.h>.
@@ -684,30 +679,30 @@ static void GetArgsAndEnv(char ***argv, char ***envp) {
}
*argv = pss->ps_argvstr;
*envp = pss->ps_envstr;
-#elif SANITIZER_NETBSD
+# elif SANITIZER_NETBSD
*argv = __ps_strings->ps_argvstr;
*envp = __ps_strings->ps_envstr;
-#else // SANITIZER_FREEBSD
-#if !SANITIZER_GO
+# else // SANITIZER_FREEBSD
+# if !SANITIZER_GO
if (&__libc_stack_end) {
- uptr* stack_end = (uptr*)__libc_stack_end;
+ uptr *stack_end = (uptr *)__libc_stack_end;
// Normally argc can be obtained from *stack_end, however, on ARM glibc's
// _start clobbers it:
// https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/arm/start.S;hb=refs/heads/release/2.31/master#l75
// Do not special-case ARM and infer argc from argv everywhere.
int argc = 0;
while (stack_end[argc + 1]) argc++;
- *argv = (char**)(stack_end + 1);
- *envp = (char**)(stack_end + argc + 2);
+ *argv = (char **)(stack_end + 1);
+ *envp = (char **)(stack_end + argc + 2);
} else {
-#endif // !SANITIZER_GO
+# endif // !SANITIZER_GO
static const int kMaxArgv = 2000, kMaxEnvp = 2000;
ReadNullSepFileToArray("/proc/self/cmdline", argv, kMaxArgv);
ReadNullSepFileToArray("/proc/self/environ", envp, kMaxEnvp);
-#if !SANITIZER_GO
+# if !SANITIZER_GO
}
-#endif // !SANITIZER_GO
-#endif // SANITIZER_FREEBSD
+# endif // !SANITIZER_GO
+# endif // SANITIZER_FREEBSD
}
char **GetArgv() {
@@ -722,12 +717,12 @@ char **GetEnviron() {
return envp;
}
-#if !SANITIZER_SOLARIS
+# if !SANITIZER_SOLARIS
void FutexWait(atomic_uint32_t *p, u32 cmp) {
# if SANITIZER_FREEBSD
_umtx_op(p, UMTX_OP_WAIT_UINT, cmp, 0, 0);
# elif SANITIZER_NETBSD
- sched_yield(); /* No userspace futex-like synchronization */
+ sched_yield(); /* No userspace futex-like synchronization */
# else
internal_syscall(SYSCALL(futex), (uptr)p, FUTEX_WAIT_PRIVATE, cmp, 0, 0, 0);
# endif
@@ -737,7 +732,7 @@ void FutexWake(atomic_uint32_t *p, u32 count) {
# if SANITIZER_FREEBSD
_umtx_op(p, UMTX_OP_WAKE, count, 0, 0);
# elif SANITIZER_NETBSD
- /* No userspace futex-like synchronization */
+ /* No userspace futex-like synchronization */
# else
internal_syscall(SYSCALL(futex), (uptr)p, FUTEX_WAKE_PRIVATE, count, 0, 0, 0);
# endif
@@ -749,26 +744,26 @@ void FutexWake(atomic_uint32_t *p, u32 count) {
// The actual size of this structure is specified by d_reclen.
// Note that getdents64 uses a different structure format. We only provide the
// 32-bit syscall here.
-#if SANITIZER_NETBSD
+# if SANITIZER_NETBSD
// Not used
-#else
+# else
struct linux_dirent {
# if SANITIZER_X32 || SANITIZER_LINUX
u64 d_ino;
u64 d_off;
# else
- unsigned long d_ino;
- unsigned long d_off;
+ unsigned long d_ino;
+ unsigned long d_off;
# endif
- unsigned short d_reclen;
+ unsigned short d_reclen;
# if SANITIZER_LINUX
- unsigned char d_type;
+ unsigned char d_type;
# endif
- char d_name[256];
+ char d_name[256];
};
-#endif
+# endif
-#if !SANITIZER_SOLARIS && !SANITIZER_NETBSD
+# if !SANITIZER_SOLARIS && !SANITIZER_NETBSD
// Syscall wrappers.
uptr internal_ptrace(int request, int pid, void *addr, void *data) {
return internal_syscall(SYSCALL(ptrace), request, pid, (uptr)addr,
@@ -780,24 +775,20 @@ uptr internal_waitpid(int pid, int *status, int options) {
0 /* rusage */);
}
-uptr internal_getpid() {
- return internal_syscall(SYSCALL(getpid));
-}
+uptr internal_getpid() { return internal_syscall(SYSCALL(getpid)); }
-uptr internal_getppid() {
- return internal_syscall(SYSCALL(getppid));
-}
+uptr internal_getppid() { return internal_syscall(SYSCALL(getppid)); }
int internal_dlinfo(void *handle, int request, void *p) {
-#if SANITIZER_FREEBSD
+# if SANITIZER_FREEBSD
return dlinfo(handle, request, p);
-#else
+# else
UNIMPLEMENTED();
-#endif
+# endif
}
uptr internal_getdents(fd_t fd, struct linux_dirent *dirp, unsigned int count) {
-#if SANITIZER_FREEBSD
+# if SANITIZER_FREEBSD
return internal_syscall(SYSCALL(getdirentries), fd, (uptr)dirp, count, NULL);
# elif SANITIZER_LINUX
return internal_syscall(SYSCALL(getdents64), fd, (uptr)dirp, count);
@@ -810,7 +801,7 @@ uptr internal_lseek(fd_t fd, OFF_T offset, int whence) {
return internal_syscall(SYSCALL(lseek), fd, offset, whence);
}
-#if SANITIZER_LINUX
+# if SANITIZER_LINUX
uptr internal_prctl(int option, uptr arg2, uptr arg3, uptr arg4, uptr arg5) {
return internal_syscall(SYSCALL(prctl), option, arg2, arg3, arg4, arg5);
}
@@ -839,7 +830,7 @@ int internal_fork() {
# endif
}
-#if SANITIZER_FREEBSD
+# if SANITIZER_FREEBSD
int internal_sysctl(const int *name, unsigned int namelen, void *oldp,
uptr *oldlenp, const void *newp, uptr newlen) {
return internal_syscall(SYSCALL(__sysctl), name, namelen, oldp,
@@ -854,11 +845,11 @@ int internal_sysctlbyname(const char *sname, void *oldp, uptr *oldlenp,
// followed by sysctl(). To avoid calling the intercepted version and
// asserting if this happens during startup, call the real sysctlnametomib()
// followed by internal_sysctl() if the syscall is not available.
-#ifdef SYS___sysctlbyname
+# ifdef SYS___sysctlbyname
return internal_syscall(SYSCALL(__sysctlbyname), sname,
internal_strlen(sname), oldp, (size_t *)oldlenp, newp,
(size_t)newlen);
-#else
+# else
static decltype(sysctlnametomib) *real_sysctlnametomib = nullptr;
if (!real_sysctlnametomib)
real_sysctlnametomib =
@@ -870,12 +861,12 @@ int internal_sysctlbyname(const char *sname, void *oldp, uptr *oldlenp,
if (real_sysctlnametomib(sname, oid, &len) == -1)
return (-1);
return internal_sysctl(oid, len, oldp, oldlenp, newp, newlen);
-#endif
+# endif
}
-#endif
+# endif
-#if SANITIZER_LINUX
-#define SA_RESTORER 0x04000000
+# if SANITIZER_LINUX
+# define SA_RESTORER 0x04000000
// Doesn't set sa_restorer if the caller did not set it, so use with caution
//(see below).
int internal_sigaction_norestorer(int signum, const void *act, void *oldact) {
@@ -899,15 +890,15 @@ int internal_sigaction_norestorer(int signum, const void *act, void *oldact) {
// rt_sigaction, so we need to do the same (we'll need to reimplement the
// restorers; for x86_64 the restorer address can be obtained from
// oldact->sa_restorer upon a call to sigaction(xxx, NULL, oldact).
-#if !SANITIZER_ANDROID || !SANITIZER_MIPS32
+# if !SANITIZER_ANDROID || !SANITIZER_MIPS32
k_act.sa_restorer = u_act->sa_restorer;
-#endif
+# endif
}
uptr result = internal_syscall(SYSCALL(rt_sigaction), (uptr)signum,
- (uptr)(u_act ? &k_act : nullptr),
- (uptr)(u_oldact ? &k_oldact : nullptr),
- (uptr)sizeof(__sanitizer_kernel_sigset_t));
+ (uptr)(u_act ? &k_act : nullptr),
+ (uptr)(u_oldact ? &k_oldact : nullptr),
+ (uptr)sizeof(__sanitizer_kernel_sigset_t));
if ((result == 0) && u_oldact) {
u_oldact->handler = k_oldact.handler;
@@ -915,24 +906,24 @@ int internal_sigaction_norestorer(int signum, const void *act, void *oldact) {
internal_memcpy(&u_oldact->sa_mask, &k_oldact.sa_mask,
sizeof(__sanitizer_kernel_sigset_t));
u_oldact->sa_flags = k_oldact.sa_flags;
-#if !SANITIZER_ANDROID || !SANITIZER_MIPS32
+# if !SANITIZER_ANDROID || !SANITIZER_MIPS32
u_oldact->sa_restorer = k_oldact.sa_restorer;
-#endif
+# endif
}
return result;
}
-#endif // SANITIZER_LINUX
+# endif // SANITIZER_LINUX
uptr internal_sigprocmask(int how, __sanitizer_sigset_t *set,
__sanitizer_sigset_t *oldset) {
-#if SANITIZER_FREEBSD
+# if SANITIZER_FREEBSD
return internal_syscall(SYSCALL(sigprocmask), how, set, oldset);
-#else
+# else
__sanitizer_kernel_sigset_t *k_set = (__sanitizer_kernel_sigset_t *)set;
__sanitizer_kernel_sigset_t *k_oldset = (__sanitizer_kernel_sigset_t *)oldset;
return internal_syscall(SYSCALL(rt_sigprocmask), (uptr)how, (uptr)k_set,
(uptr)k_oldset, sizeof(__sanitizer_kernel_sigset_t));
-#endif
+# endif
}
void internal_sigfillset(__sanitizer_sigset_t *set) {
@@ -943,7 +934,7 @@ void internal_sigemptyset(__sanitizer_sigset_t *set) {
internal_memset(set, 0, sizeof(*set));
}
-#if SANITIZER_LINUX
+# if SANITIZER_LINUX
void internal_sigdelset(__sanitizer_sigset_t *set, int signum) {
signum -= 1;
CHECK_GE(signum, 0);
@@ -963,7 +954,7 @@ bool internal_sigismember(__sanitizer_sigset_t *set, int signum) {
const uptr bit = signum % (sizeof(k_set->sig[0]) * 8);
return k_set->sig[idx] & ((uptr)1 << bit);
}
-#elif SANITIZER_FREEBSD
+# elif SANITIZER_FREEBSD
uptr internal_procctl(int type, int id, int cmd, void *data) {
return internal_syscall(SYSCALL(procctl), type, id, cmd, data);
}
@@ -977,10 +968,10 @@ bool internal_sigismember(__sanitizer_sigset_t *set, int signum) {
sigset_t *rset = reinterpret_cast<sigset_t *>(set);
return sigismember(rset, signum);
}
-#endif
-#endif // !SANITIZER_SOLARIS
+# endif
+# endif // !SANITIZER_SOLARIS
-#if !SANITIZER_NETBSD
+# if !SANITIZER_NETBSD
// ThreadLister implementation.
ThreadLister::ThreadLister(pid_t pid) : pid_(pid), buffer_(4096) {
char task_directory_path[80];
@@ -1067,25 +1058,26 @@ ThreadLister::~ThreadLister() {
if (!internal_iserror(descriptor_))
internal_close(descriptor_);
}
-#endif
+# endif
-#if SANITIZER_WORDSIZE == 32
+# if SANITIZER_WORDSIZE == 32
// Take care of unusable kernel area in top gigabyte.
static uptr GetKernelAreaSize() {
-#if SANITIZER_LINUX && !SANITIZER_X32
+# if SANITIZER_LINUX && !SANITIZER_X32
const uptr gbyte = 1UL << 30;
// Firstly check if there are writable segments
// mapped to top gigabyte (e.g. stack).
- MemoryMappingLayout proc_maps(/*cache_enabled*/true);
+ MemoryMappingLayout proc_maps(/*cache_enabled*/ true);
if (proc_maps.Error())
return 0;
MemoryMappedSegment segment;
while (proc_maps.Next(&segment)) {
- if ((segment.end >= 3 * gbyte) && segment.IsWritable()) return 0;
+ if ((segment.end >= 3 * gbyte) && segment.IsWritable())
+ return 0;
}
-#if !SANITIZER_ANDROID
+# if !SANITIZER_ANDROID
// Even if nothing is mapped, top Gb may still be accessible
// if we are running on 64-bit kernel.
// Uname may report misleading results if personality type
@@ -1095,21 +1087,21 @@ static uptr GetKernelAreaSize() {
if (!(pers & PER_MASK) && internal_uname(&uname_info) == 0 &&
internal_strstr(uname_info.machine, "64"))
return 0;
-#endif // SANITIZER_ANDROID
+# endif // SANITIZER_ANDROID
// Top gigabyte is reserved for kernel.
return gbyte;
-#else
+# else
return 0;
-#endif // SANITIZER_LINUX && !SANITIZER_X32
+# endif // SANITIZER_LINUX && !SANITIZER_X32
}
-#endif // SANITIZER_WORDSIZE == 32
+# endif // SANITIZER_WORDSIZE == 32
uptr GetMaxVirtualAddress() {
-#if SANITIZER_NETBSD && defined(__x86_64__)
+# if SANITIZER_NETBSD && defined(__x86_64__)
return 0x7f7ffffff000ULL; // (0x00007f8000000000 - PAGE_SIZE)
-#elif SANITIZER_WORDSIZE == 64
-# if defined(__powerpc64__) || defined(__aarch64__) || defined(__loongarch__)
+# elif SANITIZER_WORDSIZE == 64
+# if defined(__powerpc64__) || defined(__aarch64__) || defined(__loongarch__)
// On PowerPC64 we have two different address space layouts: 44- and 46-bit.
// We somehow need to figure out which one we are using now and choose
// one of 0x00000fffffffffffUL and 0x00003fffffffffffUL.
@@ -1119,96 +1111,97 @@ uptr GetMaxVirtualAddress() {
// Similarly, aarch64 has multiple address space layouts: 39, 42 and 47-bit.
// loongarch64 also has multiple address space layouts: default is 47-bit.
return (1ULL << (MostSignificantSetBitIndex(GET_CURRENT_FRAME()) + 1)) - 1;
-#elif SANITIZER_RISCV64
+# elif SANITIZER_RISCV64
return (1ULL << 38) - 1;
-# elif SANITIZER_MIPS64
+# elif SANITIZER_MIPS64
return (1ULL << 40) - 1; // 0x000000ffffffffffUL;
-# elif defined(__s390x__)
+# elif defined(__s390x__)
return (1ULL << 53) - 1; // 0x001fffffffffffffUL;
-#elif defined(__sparc__)
+# elif defined(__sparc__)
return ~(uptr)0;
-# else
+# else
return (1ULL << 47) - 1; // 0x00007fffffffffffUL;
-# endif
-#else // SANITIZER_WORDSIZE == 32
-# if defined(__s390__)
+# endif
+# else // SANITIZER_WORDSIZE == 32
+# if defined(__s390__)
return (1ULL << 31) - 1; // 0x7fffffff;
-# else
+# else
return (1ULL << 32) - 1; // 0xffffffff;
-# endif
-#endif // SANITIZER_WORDSIZE
+# endif
+# endif // SANITIZER_WORDSIZE
}
uptr GetMaxUserVirtualAddress() {
uptr addr = GetMaxVirtualAddress();
-#if SANITIZER_WORDSIZE == 32 && !defined(__s390__)
+# if SANITIZER_WORDSIZE == 32 && !defined(__s390__)
if (!common_flags()->full_address_space)
addr -= GetKernelAreaSize();
CHECK_LT(reinterpret_cast<uptr>(&addr), addr);
-#endif
+# endif
return addr;
}
-#if !SANITIZER_ANDROID
+# if !SANITIZER_ANDROID
uptr GetPageSize() {
-#if SANITIZER_LINUX && (defined(__x86_64__) || defined(__i386__)) && \
- defined(EXEC_PAGESIZE)
+# if SANITIZER_LINUX && (defined(__x86_64__) || defined(__i386__)) && \
+ defined(EXEC_PAGESIZE)
return EXEC_PAGESIZE;
-#elif SANITIZER_FREEBSD || SANITIZER_NETBSD
-// Use sysctl as sysconf can trigger interceptors internally.
+# elif SANITIZER_FREEBSD || SANITIZER_NETBSD
+ // Use sysctl as sysconf can trigger interceptors internally.
int pz = 0;
uptr pzl = sizeof(pz);
int mib[2] = {CTL_HW, HW_PAGESIZE};
int rv = internal_sysctl(mib, 2, &pz, &pzl, nullptr, 0);
CHECK_EQ(rv, 0);
return (uptr)pz;
-#elif SANITIZER_USE_GETAUXVAL
+# elif SANITIZER_USE_GETAUXVAL
return getauxval(AT_PAGESZ);
-#else
+# else
return sysconf(_SC_PAGESIZE); // EXEC_PAGESIZE may not be trustworthy.
-#endif
+# endif
}
-#endif // !SANITIZER_ANDROID
+# endif // !SANITIZER_ANDROID
-uptr ReadBinaryName(/*out*/char *buf, uptr buf_len) {
-#if SANITIZER_SOLARIS
+uptr ReadBinaryName(/*out*/ char *buf, uptr buf_len) {
+# if SANITIZER_SOLARIS
const char *default_module_name = getexecname();
CHECK_NE(default_module_name, NULL);
return internal_snprintf(buf, buf_len, "%s", default_module_name);
-#else
-#if SANITIZER_FREEBSD || SANITIZER_NETBSD
-#if SANITIZER_FREEBSD
+# else
+# if SANITIZER_FREEBSD || SANITIZER_NETBSD
+# if SANITIZER_FREEBSD
const int Mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
-#else
+# else
const int Mib[4] = {CTL_KERN, KERN_PROC_ARGS, -1, KERN_PROC_PATHNAME};
-#endif
+# endif
const char *default_module_name = "kern.proc.pathname";
uptr Size = buf_len;
bool IsErr =
(internal_sysctl(Mib, ARRAY_SIZE(Mib), buf, &Size, NULL, 0) != 0);
int readlink_error = IsErr ? errno : 0;
uptr module_name_len = Size;
-#else
+# else
const char *default_module_name = "/proc/self/exe";
- uptr module_name_len = internal_readlink(
- default_module_name, buf, buf_len);
+ uptr module_name_len = internal_readlink(default_module_name, buf, buf_len);
int readlink_error;
bool IsErr = internal_iserror(module_name_len, &readlink_error);
-#endif // SANITIZER_SOLARIS
+# endif // SANITIZER_SOLARIS
if (IsErr) {
// We can't read binary name for some reason, assume it's unknown.
- Report("WARNING: reading executable name failed with errno %d, "
- "some stack frames may not be symbolized\n", readlink_error);
- module_name_len = internal_snprintf(buf, buf_len, "%s",
- default_module_name);
+ Report(
+ "WARNING: reading executable name failed with errno %d, "
+ "some stack frames may not be symbolized\n",
+ readlink_error);
+ module_name_len =
+ internal_snprintf(buf, buf_len, "%s", default_module_name);
CHECK_LT(module_name_len, buf_len);
}
return module_name_len;
-#endif
+# endif
}
uptr ReadLongProcessName(/*out*/ char *buf, uptr buf_len) {
-#if SANITIZER_LINUX
+# if SANITIZER_LINUX
char *tmpbuf;
uptr tmpsize;
uptr tmplen;
@@ -1218,7 +1211,7 @@ uptr ReadLongProcessName(/*out*/ char *buf, uptr buf_len) {
UnmapOrDie(tmpbuf, tmpsize);
return internal_strlen(buf);
}
-#endif
+# endif
return ReadBinaryName(buf, buf_len);
}
@@ -1228,20 +1221,22 @@ bool LibraryNameIs(const char *full_name, const char *base_name) {
// Strip path.
while (*name != '\0') name++;
while (name > full_name && *name != '/') name--;
- if (*name == '/') name++;
+ if (*name == '/')
+ name++;
uptr base_name_length = internal_strlen(base_name);
- if (internal_strncmp(name, base_name, base_name_length)) return false;
+ if (internal_strncmp(name, base_name, base_name_length))
+ return false;
return (name[base_name_length] == '-' || name[base_name_length] == '.');
}
-#if !SANITIZER_ANDROID
+# if !SANITIZER_ANDROID
// Call cb for each region mapped by map.
void ForEachMappedRegion(link_map *map, void (*cb)(const void *, uptr)) {
CHECK_NE(map, nullptr);
-#if !SANITIZER_FREEBSD
+# if !SANITIZER_FREEBSD
typedef ElfW(Phdr) Elf_Phdr;
typedef ElfW(Ehdr) Elf_Ehdr;
-#endif // !SANITIZER_FREEBSD
+# endif // !SANITIZER_FREEBSD
char *base = (char *)map->l_addr;
Elf_Ehdr *ehdr = (Elf_Ehdr *)base;
char *phdrs = base + ehdr->e_phoff;
@@ -1273,10 +1268,10 @@ void ForEachMappedRegion(link_map *map, void (*cb)(const void *, uptr)) {
}
}
}
-#endif
+# endif
-#if SANITIZER_LINUX
-#if defined(__x86_64__)
+# if SANITIZER_LINUX
+# if defined(__x86_64__)
// We cannot use glibc's clone wrapper, because it messes with the child
// task's TLS. It writes the PID and TID of the child task to its thread
// descriptor, but in our case the child task shares the thread descriptor with
@@ -1295,50 +1290,46 @@ uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
register void *r8 __asm__("r8") = newtls;
register int *r10 __asm__("r10") = child_tidptr;
__asm__ __volatile__(
- /* %rax = syscall(%rax = SYSCALL(clone),
- * %rdi = flags,
- * %rsi = child_stack,
- * %rdx = parent_tidptr,
- * %r8 = new_tls,
- * %r10 = child_tidptr)
- */
- "syscall\n"
-
- /* if (%rax != 0)
- * return;
- */
- "testq %%rax,%%rax\n"
- "jnz 1f\n"
-
- /* In the child. Terminate unwind chain. */
- // XXX: We should also terminate the CFI unwind chain
- // here. Unfortunately clang 3.2 doesn't support the
- // necessary CFI directives, so we skip that part.
- "xorq %%rbp,%%rbp\n"
-
- /* Call "fn(arg)". */
- "popq %%rax\n"
- "popq %%rdi\n"
- "call *%%rax\n"
-
- /* Call _exit(%rax). */
- "movq %%rax,%%rdi\n"
- "movq %2,%%rax\n"
- "syscall\n"
-
- /* Return to parent. */
- "1:\n"
- : "=a" (res)
- : "a"(SYSCALL(clone)), "i"(SYSCALL(exit)),
- "S"(child_stack),
- "D"(flags),
- "d"(parent_tidptr),
- "r"(r8),
- "r"(r10)
- : "memory", "r11", "rcx");
+ /* %rax = syscall(%rax = SYSCALL(clone),
+ * %rdi = flags,
+ * %rsi = child_stack,
+ * %rdx = parent_tidptr,
+ * %r8 = new_tls,
+ * %r10 = child_tidptr)
+ */
+ "syscall\n"
+
+ /* if (%rax != 0)
+ * return;
+ */
+ "testq %%rax,%%rax\n"
+ "jnz 1f\n"
+
+ /* In the child. Terminate unwind chain. */
+ // XXX: We should also terminate the CFI unwind chain
+ // here. Unfortunately clang 3.2 doesn't support the
+ // necessary CFI directives, so we skip that part.
+ "xorq %%rbp,%%rbp\n"
+
+ /* Call "fn(arg)". */
+ "popq %%rax\n"
+ "popq %%rdi\n"
+ "call *%%rax\n"
+
+ /* Call _exit(%rax). */
+ "movq %%rax,%%rdi\n"
+ "movq %2,%%rax\n"
+ "syscall\n"
+
+ /* Return to parent. */
+ "1:\n"
+ : "=a"(res)
+ : "a"(SYSCALL(clone)), "i"(SYSCALL(exit)), "S"(child_stack), "D"(flags),
+ "d"(parent_tidptr), "r"(r8), "r"(r10)
+ : "memory", "r11", "rcx");
return res;
}
-#elif defined(__mips__)
+# elif defined(__mips__)
uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
int *parent_tidptr, void *newtls, int *child_tidptr) {
long long res;
@@ -1353,68 +1344,63 @@ uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
// We don't have proper CFI directives here because it requires alot of code
// for very marginal benefits.
__asm__ __volatile__(
- /* $v0 = syscall($v0 = __NR_clone,
- * $a0 = flags,
- * $a1 = child_stack,
- * $a2 = parent_tidptr,
- * $a3 = new_tls,
- * $a4 = child_tidptr)
- */
- ".cprestore 16;\n"
- "move $4,%1;\n"
- "move $5,%2;\n"
- "move $6,%3;\n"
- "move $7,%4;\n"
- /* Store the fifth argument on stack
- * if we are using 32-bit abi.
- */
-#if SANITIZER_WORDSIZE == 32
- "lw %5,16($29);\n"
-#else
- "move $8,%5;\n"
-#endif
- "li $2,%6;\n"
- "syscall;\n"
-
- /* if ($v0 != 0)
- * return;
- */
- "bnez $2,1f;\n"
-
- /* Call "fn(arg)". */
-#if SANITIZER_WORDSIZE == 32
-#ifdef __BIG_ENDIAN__
- "lw $25,4($29);\n"
- "lw $4,12($29);\n"
-#else
- "lw $25,0($29);\n"
- "lw $4,8($29);\n"
-#endif
-#else
- "ld $25,0($29);\n"
- "ld $4,8($29);\n"
-#endif
- "jal $25;\n"
-
- /* Call _exit($v0). */
- "move $4,$2;\n"
- "li $2,%7;\n"
- "syscall;\n"
-
- /* Return to parent. */
- "1:\n"
- : "=r" (res)
- : "r"(flags),
- "r"(child_stack),
- "r"(parent_tidptr),
- "r"(a3),
- "r"(a4),
- "i"(__NR_clone),
- "i"(__NR_exit)
- : "memory", "$29" );
+ /* $v0 = syscall($v0 = __NR_clone,
+ * $a0 = flags,
+ * $a1 = child_stack,
+ * $a2 = parent_tidptr,
+ * $a3 = new_tls,
+ * $a4 = child_tidptr)
+ */
+ ".cprestore 16;\n"
+ "move $4,%1;\n"
+ "move $5,%2;\n"
+ "move $6,%3;\n"
+ "move $7,%4;\n"
+ /* Store the fifth argument on stack
+ * if we are using 32-bit abi.
+ */
+# if SANITIZER_WORDSIZE == 32
+ "lw %5,16($29);\n"
+# else
+ "move $8,%5;\n"
+# endif
+ "li $2,%6;\n"
+ "syscall;\n"
+
+ /* if ($v0 != 0)
+ * return;
+ */
+ "bnez $2,1f;\n"
+
+ /* Call "fn(arg)". */
+# if SANITIZER_WORDSIZE == 32
+# ifdef __BIG_ENDIAN__
+ "lw $25,4($29);\n"
+ "lw $4,12($29);\n"
+# else
+ "lw $25,0($29);\n"
+ "lw $4,8($29);\n"
+# endif
+# else
+ "ld $25,0($29);\n"
+ "ld $4,8($29);\n"
+# endif
+ "jal $25;\n"
+
+ /* Call _exit($v0). */
+ "move $4,$2;\n"
+ "li $2,%7;\n"
+ "syscall;\n"
+
+ /* Return to parent. */
+ "1:\n"
+ : "=r"(res)
+ : "r"(flags), "r"(child_stack), "r"(parent_tidptr), "r"(a3), "r"(a4),
+ "i"(__NR_clone), "i"(__NR_exit)
+ : "memory", "$29");
return res;
}
-#elif SANITIZER_RISCV64
+# elif SANITIZER_RISCV64
uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
int *parent_tidptr, void *newtls, int *child_tidptr) {
if (!fn || !child_stack)
@@ -1455,7 +1441,7 @@ uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
: "memory");
return res;
}
-#elif defined(__aarch64__)
+# elif defined(__aarch64__)
uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
int *parent_tidptr, void *newtls, int *child_tidptr) {
register long long res __asm__("x0");
@@ -1466,47 +1452,45 @@ uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
((unsigned long long *)child_stack)[0] = (uptr)fn;
((unsigned long long *)child_stack)[1] = (uptr)arg;
- register int (*__fn)(void *) __asm__("x0") = fn;
+ register int (*__fn)(void *) __asm__("x0") = fn;
register void *__stack __asm__("x1") = child_stack;
- register int __flags __asm__("x2") = flags;
- register void *__arg __asm__("x3") = arg;
- register int *__ptid __asm__("x4") = parent_tidptr;
- register void *__tls __asm__("x5") = newtls;
- register int *__ctid __asm__("x6") = child_tidptr;
+ register int __flags __asm__("x2") = flags;
+ register void *__arg __asm__("x3") = arg;
+ register int *__ptid __asm__("x4") = parent_tidptr;
+ register void *__tls __asm__("x5") = newtls;
+ register int *__ctid __asm__("x6") = child_tidptr;
__asm__ __volatile__(
- "mov x0,x2\n" /* flags */
- "mov x2,x4\n" /* ptid */
- "mov x3,x5\n" /* tls */
- "mov x4,x6\n" /* ctid */
- "mov x8,%9\n" /* clone */
-
- "svc 0x0\n"
-
- /* if (%r0 != 0)
- * return %r0;
- */
- "cmp x0, #0\n"
- "bne 1f\n"
-
- /* In the child, now. Call "fn(arg)". */
- "ldp x1, x0, [sp], #16\n"
- "blr x1\n"
-
- /* Call _exit(%r0). */
- "mov x8, %10\n"
- "svc 0x0\n"
- "1:\n"
-
- : "=r" (res)
- : "i"(-EINVAL),
- "r"(__fn), "r"(__stack), "r"(__flags), "r"(__arg),
- "r"(__ptid), "r"(__tls), "r"(__ctid),
- "i"(__NR_clone), "i"(__NR_exit)
- : "x30", "memory");
+ "mov x0,x2\n" /* flags */
+ "mov x2,x4\n" /* ptid */
+ "mov x3,x5\n" /* tls */
+ "mov x4,x6\n" /* ctid */
+ "mov x8,%9\n" /* clone */
+
+ "svc 0x0\n"
+
+ /* if (%r0 != 0)
+ * return %r0;
+ */
+ "cmp x0, #0\n"
+ "bne 1f\n"
+
+ /* In the child, now. Call "fn(arg)". */
+ "ldp x1, x0, [sp], #16\n"
+ "blr x1\n"
+
+ /* Call _exit(%r0). */
+ "mov x8, %10\n"
+ "svc 0x0\n"
+ "1:\n"
+
+ : "=r"(res)
+ : "i"(-EINVAL), "r"(__fn), "r"(__stack), "r"(__flags), "r"(__arg),
+ "r"(__ptid), "r"(__tls), "r"(__ctid), "i"(__NR_clone), "i"(__NR_exit)
+ : "x30", "memory");
return res;
}
-#elif SANITIZER_LOONGARCH64
+# elif SANITIZER_LOONGARCH64
uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
int *parent_tidptr, void *newtls, int *child_tidptr) {
if (!fn || !child_stack)
@@ -1544,119 +1528,110 @@ uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
: "=r"(res)
: "0"(__flags), "r"(__stack), "r"(__ptid), "r"(__ctid), "r"(__tls),
"r"(__fn), "r"(__arg), "r"(nr_clone), "i"(__NR_exit)
- : "memory", "$t0", "$t1", "$t2", "$t3", "$t4", "$t5", "$t6", "$t7", "$t8");
+ : "memory", "$t0", "$t1", "$t2", "$t3", "$t4", "$t5", "$t6", "$t7",
+ "$t8");
return res;
}
-#elif defined(__powerpc64__)
+# elif defined(__powerpc64__)
uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
- int *parent_tidptr, void *newtls, int *child_tidptr) {
+ int *parent_tidptr, void *newtls, int *child_tidptr) {
long long res;
// Stack frame structure.
-#if SANITIZER_PPC64V1
-// Back chain == 0 (SP + 112)
-// Frame (112 bytes):
-// Parameter save area (SP + 48), 8 doublewords
-// TOC save area (SP + 40)
-// Link editor doubleword (SP + 32)
-// Compiler doubleword (SP + 24)
-// LR save area (SP + 16)
-// CR save area (SP + 8)
-// Back chain (SP + 0)
-# define FRAME_SIZE 112
-# define FRAME_TOC_SAVE_OFFSET 40
-#elif SANITIZER_PPC64V2
-// Back chain == 0 (SP + 32)
-// Frame (32 bytes):
-// TOC save area (SP + 24)
-// LR save area (SP + 16)
-// CR save area (SP + 8)
-// Back chain (SP + 0)
-# define FRAME_SIZE 32
-# define FRAME_TOC_SAVE_OFFSET 24
-#else
-# error "Unsupported PPC64 ABI"
-#endif
+# if SANITIZER_PPC64V1
+ // Back chain == 0 (SP + 112)
+ // Frame (112 bytes):
+ // Parameter save area (SP + 48), 8 doublewords
+ // TOC save area (SP + 40)
+ // Link editor doubleword (SP + 32)
+ // Compiler doubleword (SP + 24)
+ // LR save area (SP + 16)
+ // CR save area (SP + 8)
+ // Back chain (SP + 0)
+# define FRAME_SIZE 112
+# define FRAME_TOC_SAVE_OFFSET 40
+# elif SANITIZER_PPC64V2
+ // Back chain == 0 (SP + 32)
+ // Frame (32 bytes):
+ // TOC save area (SP + 24)
+ // LR save area (SP + 16)
+ // CR save area (SP + 8)
+ // Back chain (SP + 0)
+# define FRAME_SIZE 32
+# define FRAME_TOC_SAVE_OFFSET 24
+# else
+# error "Unsupported PPC64 ABI"
+# endif
if (!fn || !child_stack)
return -EINVAL;
CHECK_EQ(0, (uptr)child_stack % 16);
register int (*__fn)(void *) __asm__("r3") = fn;
- register void *__cstack __asm__("r4") = child_stack;
- register int __flags __asm__("r5") = flags;
- register void *__arg __asm__("r6") = arg;
- register int *__ptidptr __asm__("r7") = parent_tidptr;
- register void *__newtls __asm__("r8") = newtls;
- register int *__ctidptr __asm__("r9") = child_tidptr;
-
- __asm__ __volatile__(
- /* fn and arg are saved across the syscall */
- "mr 28, %5\n\t"
- "mr 27, %8\n\t"
-
- /* syscall
- r0 == __NR_clone
- r3 == flags
- r4 == child_stack
- r5 == parent_tidptr
- r6 == newtls
- r7 == child_tidptr */
- "mr 3, %7\n\t"
- "mr 5, %9\n\t"
- "mr 6, %10\n\t"
- "mr 7, %11\n\t"
- "li 0, %3\n\t"
- "sc\n\t"
-
- /* Test if syscall was successful */
- "cmpdi cr1, 3, 0\n\t"
- "crandc cr1*4+eq, cr1*4+eq, cr0*4+so\n\t"
- "bne- cr1, 1f\n\t"
-
- /* Set up stack frame */
- "li 29, 0\n\t"
- "stdu 29, -8(1)\n\t"
- "stdu 1, -%12(1)\n\t"
- /* Do the function call */
- "std 2, %13(1)\n\t"
-#if SANITIZER_PPC64V1
- "ld 0, 0(28)\n\t"
- "ld 2, 8(28)\n\t"
- "mtctr 0\n\t"
-#elif SANITIZER_PPC64V2
- "mr 12, 28\n\t"
- "mtctr 12\n\t"
-#else
-# error "Unsupported PPC64 ABI"
-#endif
- "mr 3, 27\n\t"
- "bctrl\n\t"
- "ld 2, %13(1)\n\t"
-
- /* Call _exit(r3) */
- "li 0, %4\n\t"
- "sc\n\t"
-
- /* Return to parent */
- "1:\n\t"
- "mr %0, 3\n\t"
- : "=r" (res)
- : "0" (-1),
- "i" (EINVAL),
- "i" (__NR_clone),
- "i" (__NR_exit),
- "r" (__fn),
- "r" (__cstack),
- "r" (__flags),
- "r" (__arg),
- "r" (__ptidptr),
- "r" (__newtls),
- "r" (__ctidptr),
- "i" (FRAME_SIZE),
- "i" (FRAME_TOC_SAVE_OFFSET)
- : "cr0", "cr1", "memory", "ctr", "r0", "r27", "r28", "r29");
+ register void *__cstack __asm__("r4") = child_stack;
+ register int __flags __asm__("r5") = flags;
+ register void *__arg __asm__("r6") = arg;
+ register int *__ptidptr __asm__("r7") = parent_tidptr;
+ register void *__newtls __asm__("r8") = newtls;
+ register int *__ctidptr __asm__("r9") = child_tidptr;
+
+ __asm__ __volatile__(
+ /* fn and arg are saved across the syscall */
+ "mr 28, %5\n\t"
+ "mr 27, %8\n\t"
+
+ /* syscall
+ r0 == __NR_clone
+ r3 == flags
+ r4 == child_stack
+ r5 == parent_tidptr
+ r6 == newtls
+ r7 == child_tidptr */
+ "mr 3, %7\n\t"
+ "mr 5, %9\n\t"
+ "mr 6, %10\n\t"
+ "mr 7, %11\n\t"
+ "li 0, %3\n\t"
+ "sc\n\t"
+
+ /* Test if syscall was successful */
+ "cmpdi cr1, 3, 0\n\t"
+ "crandc cr1*4+eq, cr1*4+eq, cr0*4+so\n\t"
+ "bne- cr1, 1f\n\t"
+
+ /* Set up stack frame */
+ "li 29, 0\n\t"
+ "stdu 29, -8(1)\n\t"
+ "stdu 1, -%12(1)\n\t"
+ /* Do the function call */
+ "std 2, %13(1)\n\t"
+# if SANITIZER_PPC64V1
+ "ld 0, 0(28)\n\t"
+ "ld 2, 8(28)\n\t"
+ "mtctr 0\n\t"
+# elif SANITIZER_PPC64V2
+ "mr 12, 28\n\t"
+ "mtctr 12\n\t"
+# else
+# error "Unsupported PPC64 ABI"
+# endif
+ "mr 3, 27\n\t"
+ "bctrl\n\t"
+ "ld 2, %13(1)\n\t"
+
+ /* Call _exit(r3) */
+ "li 0, %4\n\t"
+ "sc\n\t"
+
+ /* Return to parent */
+ "1:\n\t"
+ "mr %0, 3\n\t"
+ : "=r"(res)
+ : "0"(-1), "i"(EINVAL), "i"(__NR_clone), "i"(__NR_exit), "r"(__fn),
+ "r"(__cstack), "r"(__flags), "r"(__arg), "r"(__ptidptr), "r"(__newtls),
+ "r"(__ctidptr), "i"(FRAME_SIZE), "i"(FRAME_TOC_SAVE_OFFSET)
+ : "cr0", "cr1", "memory", "ctr", "r0", "r27", "r28", "r29");
return res;
}
-#elif defined(__i386__)
+# elif defined(__i386__)
uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
int *parent_tidptr, void *newtls, int *child_tidptr) {
int res;
@@ -1669,59 +1644,56 @@ uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
((unsigned int *)child_stack)[2] = (uptr)fn;
((unsigned int *)child_stack)[3] = (uptr)arg;
__asm__ __volatile__(
- /* %eax = syscall(%eax = SYSCALL(clone),
- * %ebx = flags,
- * %ecx = child_stack,
- * %edx = parent_tidptr,
- * %esi = new_tls,
- * %edi = child_tidptr)
- */
-
- /* Obtain flags */
- "movl (%%ecx), %%ebx\n"
- /* Do the system call */
- "pushl %%ebx\n"
- "pushl %%esi\n"
- "pushl %%edi\n"
- /* Remember the flag value. */
- "movl %%ebx, (%%ecx)\n"
- "int $0x80\n"
- "popl %%edi\n"
- "popl %%esi\n"
- "popl %%ebx\n"
-
- /* if (%eax != 0)
- * return;
- */
-
- "test %%eax,%%eax\n"
- "jnz 1f\n"
-
- /* terminate the stack frame */
- "xorl %%ebp,%%ebp\n"
- /* Call FN. */
- "call *%%ebx\n"
-#ifdef PIC
- "call here\n"
- "here:\n"
- "popl %%ebx\n"
- "addl $_GLOBAL_OFFSET_TABLE_+[.-here], %%ebx\n"
-#endif
- /* Call exit */
- "movl %%eax, %%ebx\n"
- "movl %2, %%eax\n"
- "int $0x80\n"
- "1:\n"
- : "=a" (res)
- : "a"(SYSCALL(clone)), "i"(SYSCALL(exit)),
- "c"(child_stack),
- "d"(parent_tidptr),
- "S"(newtls),
- "D"(child_tidptr)
- : "memory");
+ /* %eax = syscall(%eax = SYSCALL(clone),
+ * %ebx = flags,
+ * %ecx = child_stack,
+ * %edx = parent_tidptr,
+ * %esi = new_tls,
+ * %edi = child_tidptr)
+ */
+
+ /* Obtain flags */
+ "movl (%%ecx), %%ebx\n"
+ /* Do the system call */
+ "pushl %%ebx\n"
+ "pushl %%esi\n"
+ "pushl %%edi\n"
+ /* Remember the flag value. */
+ "movl %%ebx, (%%ecx)\n"
+ "int $0x80\n"
+ "popl %%edi\n"
+ "popl %%esi\n"
+ "popl %%ebx\n"
+
+ /* if (%eax != 0)
+ * return;
+ */
+
+ "test %%eax,%%eax\n"
+ "jnz 1f\n"
+
+ /* terminate the stack frame */
+ "xorl %%ebp,%%ebp\n"
+ /* Call FN. */
+ "call *%%ebx\n"
+# ifdef PIC
+ "call here\n"
+ "here:\n"
+ "popl %%ebx\n"
+ "addl $_GLOBAL_OFFSET_TABLE_+[.-here], %%ebx\n"
+# endif
+ /* Call exit */
+ "movl %%eax, %%ebx\n"
+ "movl %2, %%eax\n"
+ "int $0x80\n"
+ "1:\n"
+ : "=a"(res)
+ : "a"(SYSCALL(clone)), "i"(SYSCALL(exit)), "c"(child_stack),
+ "d"(parent_tidptr), "S"(newtls), "D"(child_tidptr)
+ : "memory");
return res;
}
-#elif defined(__arm__)
+# elif defined(__arm__)
uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
int *parent_tidptr, void *newtls, int *child_tidptr) {
unsigned int res;
@@ -1737,70 +1709,68 @@ uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
register int *r4 __asm__("r4") = child_tidptr;
register int r7 __asm__("r7") = __NR_clone;
-#if __ARM_ARCH > 4 || defined (__ARM_ARCH_4T__)
-# define ARCH_HAS_BX
-#endif
-#if __ARM_ARCH > 4
-# define ARCH_HAS_BLX
-#endif
+# if __ARM_ARCH > 4 || defined(__ARM_ARCH_4T__)
+# define ARCH_HAS_BX
+# endif
+# if __ARM_ARCH > 4
+# define ARCH_HAS_BLX
+# endif
-#ifdef ARCH_HAS_BX
-# ifdef ARCH_HAS_BLX
-# define BLX(R) "blx " #R "\n"
-# else
-# define BLX(R) "mov lr, pc; bx " #R "\n"
-# endif
-#else
-# define BLX(R) "mov lr, pc; mov pc," #R "\n"
-#endif
+# ifdef ARCH_HAS_BX
+# ifdef ARCH_HAS_BLX
+# define BLX(R) "blx " #R "\n"
+# else
+# define BLX(R) "mov lr, pc; bx " #R "\n"
+# endif
+# else
+# define BLX(R) "mov lr, pc; mov pc," #R "\n"
+# endif
__asm__ __volatile__(
- /* %r0 = syscall(%r7 = SYSCALL(clone),
- * %r0 = flags,
- * %r1 = child_stack,
- * %r2 = parent_tidptr,
- * %r3 = new_tls,
- * %r4 = child_tidptr)
- */
-
- /* Do the system call */
- "swi 0x0\n"
-
- /* if (%r0 != 0)
- * return %r0;
- */
- "cmp r0, #0\n"
- "bne 1f\n"
-
- /* In the child, now. Call "fn(arg)". */
- "ldr r0, [sp, #4]\n"
- "ldr ip, [sp], #8\n"
- BLX(ip)
- /* Call _exit(%r0). */
- "mov r7, %7\n"
- "swi 0x0\n"
- "1:\n"
- "mov %0, r0\n"
- : "=r"(res)
- : "r"(r0), "r"(r1), "r"(r2), "r"(r3), "r"(r4), "r"(r7),
- "i"(__NR_exit)
- : "memory");
+ /* %r0 = syscall(%r7 = SYSCALL(clone),
+ * %r0 = flags,
+ * %r1 = child_stack,
+ * %r2 = parent_tidptr,
+ * %r3 = new_tls,
+ * %r4 = child_tidptr)
+ */
+
+ /* Do the system call */
+ "swi 0x0\n"
+
+ /* if (%r0 != 0)
+ * return %r0;
+ */
+ "cmp r0, #0\n"
+ "bne 1f\n"
+
+ /* In the child, now. Call "fn(arg)". */
+ "ldr r0, [sp, #4]\n"
+ "ldr ip, [sp], #8\n" BLX(ip)
+ /* Call _exit(%r0). */
+ "mov r7, %7\n"
+ "swi 0x0\n"
+ "1:\n"
+ "mov %0, r0\n"
+ : "=r"(res)
+ : "r"(r0), "r"(r1), "r"(r2), "r"(r3), "r"(r4), "r"(r7), "i"(__NR_exit)
+ : "memory");
return res;
}
-#endif
-#endif // SANITIZER_LINUX
+# endif
+# endif // SANITIZER_LINUX
-#if SANITIZER_LINUX
+# if SANITIZER_LINUX
int internal_uname(struct utsname *buf) {
return internal_syscall(SYSCALL(uname), buf);
}
-#endif
+# endif
-#if SANITIZER_ANDROID
-#if __ANDROID_API__ < 21
+# if SANITIZER_ANDROID
+# if __ANDROID_API__ < 21
extern "C" __attribute__((weak)) int dl_iterate_phdr(
int (*)(struct dl_phdr_info *, size_t, void *), void *);
-#endif
+# endif
static int dl_iterate_phdr_test_cb(struct dl_phdr_info *info, size_t size,
void *data) {
@@ -1817,40 +1787,41 @@ static int dl_iterate_phdr_test_cb(struct dl_phdr_info *info, size_t size,
static atomic_uint32_t android_api_level;
static AndroidApiLevel AndroidDetectApiLevelStatic() {
-#if __ANDROID_API__ <= 19
+# if __ANDROID_API__ <= 19
return ANDROID_KITKAT;
-#elif __ANDROID_API__ <= 22
+# elif __ANDROID_API__ <= 22
return ANDROID_LOLLIPOP_MR1;
-#else
+# else
return ANDROID_POST_LOLLIPOP;
-#endif
+# endif
}
static AndroidApiLevel AndroidDetectApiLevel() {
if (!&dl_iterate_phdr)
- return ANDROID_KITKAT; // K or lower
+ return ANDROID_KITKAT; // K or lower
bool base_name_seen = false;
dl_iterate_phdr(dl_iterate_phdr_test_cb, &base_name_seen);
if (base_name_seen)
- return ANDROID_LOLLIPOP_MR1; // L MR1
+ return ANDROID_LOLLIPOP_MR1; // L MR1
return ANDROID_POST_LOLLIPOP; // post-L
// Plain L (API level 21) is completely broken wrt ASan and not very
// interesting to detect.
}
-extern "C" __attribute__((weak)) void* _DYNAMIC;
+extern "C" __attribute__((weak)) void *_DYNAMIC;
AndroidApiLevel AndroidGetApiLevel() {
AndroidApiLevel level =
(AndroidApiLevel)atomic_load(&android_api_level, memory_order_relaxed);
- if (level) return level;
+ if (level)
+ return level;
level = &_DYNAMIC == nullptr ? AndroidDetectApiLevelStatic()
: AndroidDetectApiLevel();
atomic_store(&android_api_level, level, memory_order_relaxed);
return level;
}
-#endif
+# endif
static HandleSignalMode GetHandleSignalModeImpl(int signum) {
switch (signum) {
@@ -1877,7 +1848,7 @@ HandleSignalMode GetHandleSignalMode(int signum) {
return result;
}
-#if !SANITIZER_GO
+# if !SANITIZER_GO
void *internal_start_thread(void *(*func)(void *arg), void *arg) {
if (&real_pthread_create == 0)
return nullptr;
@@ -1892,13 +1863,13 @@ void internal_join_thread(void *th) {
if (&real_pthread_join)
real_pthread_join(th, nullptr);
}
-#else
+# else
void *internal_start_thread(void *(*func)(void *), void *arg) { return 0; }
void internal_join_thread(void *th) {}
-#endif
+# endif
-#if SANITIZER_LINUX && defined(__aarch64__)
+# if SANITIZER_LINUX && defined(__aarch64__)
// Android headers in the older NDK releases miss this definition.
struct __sanitizer_esr_context {
struct _aarch64_ctx head;
@@ -1910,7 +1881,8 @@ static bool Aarch64GetESR(ucontext_t *ucontext, u64 *esr) {
u8 *aux = reinterpret_cast<u8 *>(ucontext->uc_mcontext.__reserved);
while (true) {
_aarch64_ctx *ctx = (_aarch64_ctx *)aux;
- if (ctx->size == 0) break;
+ if (ctx->size == 0)
+ break;
if (ctx->magic == kEsrMagic) {
*esr = ((__sanitizer_esr_context *)ctx)->esr;
return true;
@@ -1919,31 +1891,29 @@ static bool Aarch64GetESR(ucontext_t *ucontext, u64 *esr) {
}
return false;
}
-#elif SANITIZER_FREEBSD && defined(__aarch64__)
+# elif SANITIZER_FREEBSD && defined(__aarch64__)
// FreeBSD doesn't provide ESR in the ucontext.
-static bool Aarch64GetESR(ucontext_t *ucontext, u64 *esr) {
- return false;
-}
-#endif
+static bool Aarch64GetESR(ucontext_t *ucontext, u64 *esr) { return false; }
+# endif
using Context = ucontext_t;
SignalContext::WriteFlag SignalContext::GetWriteFlag() const {
Context *ucontext = (Context *)context;
-#if defined(__x86_64__) || defined(__i386__)
+# if defined(__x86_64__) || defined(__i386__)
static const uptr PF_WRITE = 1U << 1;
-#if SANITIZER_FREEBSD
+# if SANITIZER_FREEBSD
uptr err = ucontext->uc_mcontext.mc_err;
-#elif SANITIZER_NETBSD
+# elif SANITIZER_NETBSD
uptr err = ucontext->uc_mcontext.__gregs[_REG_ERR];
-#elif SANITIZER_SOLARIS && defined(__i386__)
+# elif SANITIZER_SOLARIS && defined(__i386__)
const int Err = 13;
uptr err = ucontext->uc_mcontext.gregs[Err];
-#else
+# else
uptr err = ucontext->uc_mcontext.gregs[REG_ERR];
-#endif // SANITIZER_FREEBSD
+# endif // SANITIZER_FREEBSD
return err & PF_WRITE ? Write : Read;
-#elif defined(__mips__)
+# elif defined(__mips__)
uint32_t *exception_source;
uint32_t faulty_instruction;
uint32_t op_code;
@@ -1959,12 +1929,12 @@ SignalContext::WriteFlag SignalContext::GetWriteFlag() const {
case 0x29: // sh
case 0x2b: // sw
case 0x3f: // sd
-#if __mips_isa_rev < 6
+# if __mips_isa_rev < 6
case 0x2c: // sdl
case 0x2d: // sdr
case 0x2a: // swl
case 0x2e: // swr
-#endif
+# endif
return SignalContext::Write;
case 0x20: // lb
@@ -1974,14 +1944,14 @@ SignalContext::WriteFlag SignalContext::GetWriteFlag() const {
case 0x23: // lw
case 0x27: // lwu
case 0x37: // ld
-#if __mips_isa_rev < 6
+# if __mips_isa_rev < 6
case 0x1a: // ldl
case 0x1b: // ldr
case 0x22: // lwl
case 0x26: // lwr
-#endif
+# endif
return SignalContext::Read;
-#if __mips_isa_rev == 6
+# if __mips_isa_rev == 6
case 0x3b: // pcrel
op_code = (faulty_instruction >> 19) & 0x3;
switch (op_code) {
@@ -1989,50 +1959,51 @@ SignalContext::WriteFlag SignalContext::GetWriteFlag() const {
case 0x2: // lwupc
return SignalContext::Read;
}
-#endif
+# endif
}
return SignalContext::Unknown;
-#elif defined(__arm__)
+# elif defined(__arm__)
static const uptr FSR_WRITE = 1U << 11;
uptr fsr = ucontext->uc_mcontext.error_code;
return fsr & FSR_WRITE ? Write : Read;
-#elif defined(__aarch64__)
+# elif defined(__aarch64__)
static const u64 ESR_ELx_WNR = 1U << 6;
u64 esr;
- if (!Aarch64GetESR(ucontext, &esr)) return Unknown;
+ if (!Aarch64GetESR(ucontext, &esr))
+ return Unknown;
return esr & ESR_ELx_WNR ? Write : Read;
-#elif defined(__loongarch__)
+# elif defined(__loongarch__)
u32 flags = ucontext->uc_mcontext.__flags;
if (flags & SC_ADDRERR_RD)
return SignalContext::Read;
if (flags & SC_ADDRERR_WR)
return SignalContext::Write;
return SignalContext::Unknown;
-#elif defined(__sparc__)
+# elif defined(__sparc__)
// Decode the instruction to determine the access type.
// From OpenSolaris $SRC/uts/sun4/os/trap.c (get_accesstype).
-#if SANITIZER_SOLARIS
+# if SANITIZER_SOLARIS
uptr pc = ucontext->uc_mcontext.gregs[REG_PC];
-#else
+# else
// Historical BSDism here.
struct sigcontext *scontext = (struct sigcontext *)context;
-#if defined(__arch64__)
+# if defined(__arch64__)
uptr pc = scontext->sigc_regs.tpc;
-#else
+# else
uptr pc = scontext->si_regs.pc;
-#endif
-#endif
+# endif
+# endif
u32 instr = *(u32 *)pc;
- return (instr >> 21) & 1 ? Write: Read;
-#elif defined(__riscv)
-#if SANITIZER_FREEBSD
+ return (instr >> 21) & 1 ? Write : Read;
+# elif defined(__riscv)
+# if SANITIZER_FREEBSD
unsigned long pc = ucontext->uc_mcontext.mc_gpregs.gp_sepc;
-#else
+# else
unsigned long pc = ucontext->uc_mcontext.__gregs[REG_PC];
-#endif
+# endif
unsigned faulty_instruction = *(uint16_t *)pc;
-#if defined(__riscv_compressed)
+# if defined(__riscv_compressed)
if ((faulty_instruction & 0x3) != 0x3) { // it's a compressed instruction
// set op_bits to the instruction bits [1, 0, 15, 14, 13]
unsigned op_bits =
@@ -2040,38 +2011,38 @@ SignalContext::WriteFlag SignalContext::GetWriteFlag() const {
unsigned rd = faulty_instruction & 0xF80; // bits 7-11, inclusive
switch (op_bits) {
case 0b10'010: // c.lwsp (rd != x0)
-#if __riscv_xlen == 64
+# if __riscv_xlen == 64
case 0b10'011: // c.ldsp (rd != x0)
-#endif
+# endif
return rd ? SignalContext::Read : SignalContext::Unknown;
case 0b00'010: // c.lw
-#if __riscv_flen >= 32 && __riscv_xlen == 32
+# if __riscv_flen >= 32 && __riscv_xlen == 32
case 0b10'011: // c.flwsp
-#endif
-#if __riscv_flen >= 32 || __riscv_xlen == 64
+# endif
+# if __riscv_flen >= 32 || __riscv_xlen == 64
case 0b00'011: // c.flw / c.ld
-#endif
-#if __riscv_flen == 64
+# endif
+# if __riscv_flen == 64
case 0b00'001: // c.fld
case 0b10'001: // c.fldsp
-#endif
+# endif
return SignalContext::Read;
case 0b00'110: // c.sw
case 0b10'110: // c.swsp
-#if __riscv_flen >= 32 || __riscv_xlen == 64
+# if __riscv_flen >= 32 || __riscv_xlen == 64
case 0b00'111: // c.fsw / c.sd
case 0b10'111: // c.fswsp / c.sdsp
-#endif
-#if __riscv_flen == 64
+# endif
+# if __riscv_flen == 64
case 0b00'101: // c.fsd
case 0b10'101: // c.fsdsp
-#endif
+# endif
return SignalContext::Write;
default:
return SignalContext::Unknown;
}
}
-#endif
+# endif
unsigned opcode = faulty_instruction & 0x7f; // lower 7 bits
unsigned funct3 = (faulty_instruction >> 12) & 0x7; // bits 12-14, inclusive
@@ -2081,9 +2052,9 @@ SignalContext::WriteFlag SignalContext::GetWriteFlag() const {
case 0b000: // lb
case 0b001: // lh
case 0b010: // lw
-#if __riscv_xlen == 64
+# if __riscv_xlen == 64
case 0b011: // ld
-#endif
+# endif
case 0b100: // lbu
case 0b101: // lhu
return SignalContext::Read;
@@ -2095,20 +2066,20 @@ SignalContext::WriteFlag SignalContext::GetWriteFlag() const {
case 0b000: // sb
case 0b001: // sh
case 0b010: // sw
-#if __riscv_xlen == 64
+# if __riscv_xlen == 64
case 0b011: // sd
-#endif
+# endif
return SignalContext::Write;
default:
return SignalContext::Unknown;
}
-#if __riscv_flen >= 32
+# if __riscv_flen >= 32
case 0b0000111: // floating-point loads
switch (funct3) {
case 0b010: // flw
-#if __riscv_flen == 64
+# if __riscv_flen == 64
case 0b011: // fld
-#endif
+# endif
return SignalContext::Read;
default:
return SignalContext::Unknown;
@@ -2116,21 +2087,21 @@ SignalContext::WriteFlag SignalContext::GetWriteFlag() const {
case 0b0100111: // floating-point stores
switch (funct3) {
case 0b010: // fsw
-#if __riscv_flen == 64
+# if __riscv_flen == 64
case 0b011: // fsd
-#endif
+# endif
return SignalContext::Write;
default:
return SignalContext::Unknown;
}
-#endif
+# endif
default:
return SignalContext::Unknown;
}
-#else
+# else
(void)ucontext;
return Unknown; // FIXME: Implement.
-#endif
+# endif
}
bool SignalContext::IsTrueFaultingAddress() const {
@@ -2144,124 +2115,124 @@ void SignalContext::DumpAllRegisters(void *context) {
}
static void GetPcSpBp(void *context, uptr *pc, uptr *sp, uptr *bp) {
-#if SANITIZER_NETBSD
+# if SANITIZER_NETBSD
// This covers all NetBSD architectures
ucontext_t *ucontext = (ucontext_t *)context;
*pc = _UC_MACHINE_PC(ucontext);
*bp = _UC_MACHINE_FP(ucontext);
*sp = _UC_MACHINE_SP(ucontext);
-#elif defined(__arm__)
- ucontext_t *ucontext = (ucontext_t*)context;
+# elif defined(__arm__)
+ ucontext_t *ucontext = (ucontext_t *)context;
*pc = ucontext->uc_mcontext.arm_pc;
*bp = ucontext->uc_mcontext.arm_fp;
*sp = ucontext->uc_mcontext.arm_sp;
-#elif defined(__aarch64__)
-# if SANITIZER_FREEBSD
- ucontext_t *ucontext = (ucontext_t*)context;
+# elif defined(__aarch64__)
+# if SANITIZER_FREEBSD
+ ucontext_t *ucontext = (ucontext_t *)context;
*pc = ucontext->uc_mcontext.mc_gpregs.gp_elr;
*bp = ucontext->uc_mcontext.mc_gpregs.gp_x[29];
*sp = ucontext->uc_mcontext.mc_gpregs.gp_sp;
-# else
- ucontext_t *ucontext = (ucontext_t*)context;
+# else
+ ucontext_t *ucontext = (ucontext_t *)context;
*pc = ucontext->uc_mcontext.pc;
*bp = ucontext->uc_mcontext.regs[29];
*sp = ucontext->uc_mcontext.sp;
-# endif
-#elif defined(__hppa__)
- ucontext_t *ucontext = (ucontext_t*)context;
+# endif
+# elif defined(__hppa__)
+ ucontext_t *ucontext = (ucontext_t *)context;
*pc = ucontext->uc_mcontext.sc_iaoq[0];
/* GCC uses %r3 whenever a frame pointer is needed. */
*bp = ucontext->uc_mcontext.sc_gr[3];
*sp = ucontext->uc_mcontext.sc_gr[30];
-#elif defined(__x86_64__)
-# if SANITIZER_FREEBSD
- ucontext_t *ucontext = (ucontext_t*)context;
+# elif defined(__x86_64__)
+# if SANITIZER_FREEBSD
+ ucontext_t *ucontext = (ucontext_t *)context;
*pc = ucontext->uc_mcontext.mc_rip;
*bp = ucontext->uc_mcontext.mc_rbp;
*sp = ucontext->uc_mcontext.mc_rsp;
-# else
- ucontext_t *ucontext = (ucontext_t*)context;
+# else
+ ucontext_t *ucontext = (ucontext_t *)context;
*pc = ucontext->uc_mcontext.gregs[REG_RIP];
*bp = ucontext->uc_mcontext.gregs[REG_RBP];
*sp = ucontext->uc_mcontext.gregs[REG_RSP];
-# endif
-#elif defined(__i386__)
-# if SANITIZER_FREEBSD
- ucontext_t *ucontext = (ucontext_t*)context;
+# endif
+# elif defined(__i386__)
+# if SANITIZER_FREEBSD
+ ucontext_t *ucontext = (ucontext_t *)context;
*pc = ucontext->uc_mcontext.mc_eip;
*bp = ucontext->uc_mcontext.mc_ebp;
*sp = ucontext->uc_mcontext.mc_esp;
-# else
- ucontext_t *ucontext = (ucontext_t*)context;
-# if SANITIZER_SOLARIS
+# else
+ ucontext_t *ucontext = (ucontext_t *)context;
+# if SANITIZER_SOLARIS
/* Use the numeric values: the symbolic ones are undefined by llvm
include/llvm/Support/Solaris.h. */
-# ifndef REG_EIP
-# define REG_EIP 14 // REG_PC
-# endif
-# ifndef REG_EBP
-# define REG_EBP 6 // REG_FP
-# endif
-# ifndef REG_UESP
-# define REG_UESP 17 // REG_SP
-# endif
-# endif
+# ifndef REG_EIP
+# define REG_EIP 14 // REG_PC
+# endif
+# ifndef REG_EBP
+# define REG_EBP 6 // REG_FP
+# endif
+# ifndef REG_UESP
+# define REG_UESP 17 // REG_SP
+# endif
+# endif
*pc = ucontext->uc_mcontext.gregs[REG_EIP];
*bp = ucontext->uc_mcontext.gregs[REG_EBP];
*sp = ucontext->uc_mcontext.gregs[REG_UESP];
-# endif
-#elif defined(__powerpc__) || defined(__powerpc64__)
+# endif
+# elif defined(__powerpc__) || defined(__powerpc64__)
# if SANITIZER_FREEBSD
ucontext_t *ucontext = (ucontext_t *)context;
*pc = ucontext->uc_mcontext.mc_srr0;
*sp = ucontext->uc_mcontext.mc_frame[1];
*bp = ucontext->uc_mcontext.mc_frame[31];
# else
- ucontext_t *ucontext = (ucontext_t*)context;
+ ucontext_t *ucontext = (ucontext_t *)context;
*pc = ucontext->uc_mcontext.regs->nip;
*sp = ucontext->uc_mcontext.regs->gpr[PT_R1];
// The powerpc{,64}-linux ABIs do not specify r31 as the frame
// pointer, but GCC always uses r31 when we need a frame pointer.
*bp = ucontext->uc_mcontext.regs->gpr[PT_R31];
# endif
-#elif defined(__sparc__)
-#if defined(__arch64__) || defined(__sparcv9)
-#define STACK_BIAS 2047
-#else
-#define STACK_BIAS 0
-# endif
-# if SANITIZER_SOLARIS
+# elif defined(__sparc__)
+# if defined(__arch64__) || defined(__sparcv9)
+# define STACK_BIAS 2047
+# else
+# define STACK_BIAS 0
+# endif
+# if SANITIZER_SOLARIS
ucontext_t *ucontext = (ucontext_t *)context;
*pc = ucontext->uc_mcontext.gregs[REG_PC];
*sp = ucontext->uc_mcontext.gregs[REG_O6] + STACK_BIAS;
-#else
+# else
// Historical BSDism here.
struct sigcontext *scontext = (struct sigcontext *)context;
-#if defined(__arch64__)
+# if defined(__arch64__)
*pc = scontext->sigc_regs.tpc;
*sp = scontext->sigc_regs.u_regs[14] + STACK_BIAS;
-#else
+# else
*pc = scontext->si_regs.pc;
*sp = scontext->si_regs.u_regs[14];
-#endif
-# endif
+# endif
+# endif
*bp = (uptr)((uhwptr *)*sp)[14] + STACK_BIAS;
-#elif defined(__mips__)
- ucontext_t *ucontext = (ucontext_t*)context;
+# elif defined(__mips__)
+ ucontext_t *ucontext = (ucontext_t *)context;
*pc = ucontext->uc_mcontext.pc;
*bp = ucontext->uc_mcontext.gregs[30];
*sp = ucontext->uc_mcontext.gregs[29];
-#elif defined(__s390__)
- ucontext_t *ucontext = (ucontext_t*)context;
-# if defined(__s390x__)
+# elif defined(__s390__)
+ ucontext_t *ucontext = (ucontext_t *)context;
+# if defined(__s390x__)
*pc = ucontext->uc_mcontext.psw.addr;
-# else
+# else
*pc = ucontext->uc_mcontext.psw.addr & 0x7fffffff;
-# endif
+# endif
*bp = ucontext->uc_mcontext.gregs[11];
*sp = ucontext->uc_mcontext.gregs[15];
-#elif defined(__riscv)
- ucontext_t *ucontext = (ucontext_t*)context;
+# elif defined(__riscv)
+ ucontext_t *ucontext = (ucontext_t *)context;
# if SANITIZER_FREEBSD
*pc = ucontext->uc_mcontext.mc_gpregs.gp_sepc;
*bp = ucontext->uc_mcontext.mc_gpregs.gp_s[0];
@@ -2293,7 +2264,7 @@ void InitializePlatformEarly() {
}
void CheckASLR() {
-#if SANITIZER_NETBSD
+# if SANITIZER_NETBSD
int mib[3];
int paxflags;
uptr len = sizeof(paxflags);
@@ -2308,12 +2279,13 @@ void CheckASLR() {
}
if (UNLIKELY(paxflags & CTL_PROC_PAXFLAGS_ASLR)) {
- Printf("This sanitizer is not compatible with enabled ASLR.\n"
- "To disable ASLR, please run \"paxctl +a %s\" and try again.\n",
- GetArgv()[0]);
+ Printf(
+ "This sanitizer is not compatible with enabled ASLR.\n"
+ "To disable ASLR, please run \"paxctl +a %s\" and try again.\n",
+ GetArgv()[0]);
Die();
}
-#elif SANITIZER_FREEBSD
+# elif SANITIZER_FREEBSD
int aslr_status;
int r = internal_procctl(P_PID, 0, PROC_ASLR_STATUS, &aslr_status);
if (UNLIKELY(r == -1)) {
@@ -2323,9 +2295,10 @@ void CheckASLR() {
return;
}
if ((aslr_status & PROC_ASLR_ACTIVE) != 0) {
- VReport(1, "This sanitizer is not compatible with enabled ASLR "
- "and binaries compiled with PIE\n"
- "ASLR will be disabled and the program re-executed.\n");
+ VReport(1,
+ "This sanitizer is not compatible with enabled ASLR "
+ "and binaries compiled with PIE\n"
+ "ASLR will be disabled and the program re-executed.\n");
int aslr_ctl = PROC_ASLR_FORCE_DISABLE;
CHECK_NE(internal_procctl(P_PID, 0, PROC_ASLR_CTL, &aslr_ctl), -1);
ReExec();
@@ -2348,7 +2321,7 @@ void CheckASLR() {
}
void CheckMPROTECT() {
-#if SANITIZER_NETBSD
+# if SANITIZER_NETBSD
int mib[3];
int paxflags;
uptr len = sizeof(paxflags);
@@ -2366,13 +2339,13 @@ void CheckMPROTECT() {
Printf("This sanitizer is not compatible with enabled MPROTECT\n");
Die();
}
-#else
+# else
// Do nothing
-#endif
+# endif
}
void CheckNoDeepBind(const char *filename, int flag) {
-#ifdef RTLD_DEEPBIND
+# ifdef RTLD_DEEPBIND
if (flag & RTLD_DEEPBIND) {
Report(
"You are trying to dlopen a %s shared library with RTLD_DEEPBIND flag"
@@ -2383,7 +2356,7 @@ void CheckNoDeepBind(const char *filename, int flag) {
filename, filename);
Die();
}
-#endif
+# endif
}
uptr FindAvailableMemoryRange(uptr size, uptr alignment, uptr left_padding,
@@ -2396,16 +2369,16 @@ uptr FindAvailableMemoryRange(uptr size, uptr alignment, uptr left_padding,
bool GetRandom(void *buffer, uptr length, bool blocking) {
if (!buffer || !length || length > 256)
return false;
-#if SANITIZER_USE_GETENTROPY
+# if SANITIZER_USE_GETENTROPY
uptr rnd = getentropy(buffer, length);
int rverrno = 0;
if (internal_iserror(rnd, &rverrno) && rverrno == EFAULT)
return false;
else if (rnd == 0)
return true;
-#endif // SANITIZER_USE_GETENTROPY
+# endif // SANITIZER_USE_GETENTROPY
-#if SANITIZER_USE_GETRANDOM
+# if SANITIZER_USE_GETRANDOM
static atomic_uint8_t skip_getrandom_syscall;
if (!atomic_load_relaxed(&skip_getrandom_syscall)) {
// Up to 256 bytes, getrandom will not be interrupted.
@@ -2417,7 +2390,7 @@ bool GetRandom(void *buffer, uptr length, bool blocking) {
else if (res == length)
return true;
}
-#endif // SANITIZER_USE_GETRANDOM
+# endif // SANITIZER_USE_GETRANDOM
// Up to 256 bytes, a read off /dev/urandom will not be interrupted.
// blocking is moot here, O_NONBLOCK has no effect when opening /dev/urandom.
uptr fd = internal_open("/dev/urandom", O_RDONLY);
@@ -2430,6 +2403,6 @@ bool GetRandom(void *buffer, uptr length, bool blocking) {
return true;
}
-} // namespace __sanitizer
+} // namespace __sanitizer
#endif
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_linux.h b/compiler-rt/lib/sanitizer_common/sanitizer_linux.h
index 7454369fa4192a9..c30f0326793d5af 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_linux.h
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_linux.h
@@ -13,15 +13,15 @@
#define SANITIZER_LINUX_H
#include "sanitizer_platform.h"
-#if SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_NETBSD || \
+#if SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_NETBSD || \
SANITIZER_SOLARIS
-#include "sanitizer_common.h"
-#include "sanitizer_internal_defs.h"
-#include "sanitizer_platform_limits_freebsd.h"
-#include "sanitizer_platform_limits_netbsd.h"
-#include "sanitizer_platform_limits_posix.h"
-#include "sanitizer_platform_limits_solaris.h"
-#include "sanitizer_posix.h"
+# include "sanitizer_common.h"
+# include "sanitizer_internal_defs.h"
+# include "sanitizer_platform_limits_freebsd.h"
+# include "sanitizer_platform_limits_netbsd.h"
+# include "sanitizer_platform_limits_posix.h"
+# include "sanitizer_platform_limits_solaris.h"
+# include "sanitizer_posix.h"
struct link_map; // Opaque type returned by dlopen().
struct utsname;
@@ -46,9 +46,9 @@ void ReadProcMaps(ProcSelfMapsBuff *proc_maps);
// Syscall wrappers.
uptr internal_getdents(fd_t fd, struct linux_dirent *dirp, unsigned int count);
-uptr internal_sigaltstack(const void* ss, void* oss);
+uptr internal_sigaltstack(const void *ss, void *oss);
uptr internal_sigprocmask(int how, __sanitizer_sigset_t *set,
- __sanitizer_sigset_t *oldset);
+ __sanitizer_sigset_t *oldset);
void SetSigProcMask(__sanitizer_sigset_t *set, __sanitizer_sigset_t *oldset);
void BlockSignals(__sanitizer_sigset_t *oldset = nullptr);
@@ -65,10 +65,10 @@ struct ScopedBlockSignals {
# if SANITIZER_GLIBC
uptr internal_clock_gettime(__sanitizer_clockid_t clk_id, void *tp);
-#endif
+# endif
// Linux-only syscalls.
-#if SANITIZER_LINUX
+# if SANITIZER_LINUX
uptr internal_prctl(int option, uptr arg2, uptr arg3, uptr arg4, uptr arg5);
# if defined(__x86_64__)
uptr internal_arch_prctl(int option, uptr arg2);
@@ -83,15 +83,15 @@ void internal_sigdelset(__sanitizer_sigset_t *set, int signum);
defined(__arm__) || SANITIZER_RISCV64 || SANITIZER_LOONGARCH64
uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
int *parent_tidptr, void *newtls, int *child_tidptr);
-#endif
+# endif
int internal_uname(struct utsname *buf);
-#elif SANITIZER_FREEBSD
+# elif SANITIZER_FREEBSD
uptr internal_procctl(int type, int id, int cmd, void *data);
void internal_sigdelset(__sanitizer_sigset_t *set, int signum);
-#elif SANITIZER_NETBSD
+# elif SANITIZER_NETBSD
void internal_sigdelset(__sanitizer_sigset_t *set, int signum);
uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg);
-#endif // SANITIZER_LINUX
+# endif // SANITIZER_LINUX
// This class reads thread IDs from /proc/<pid>/task using only syscalls.
class ThreadLister {
@@ -135,36 +135,60 @@ inline void ReleaseMemoryPagesToOSAndZeroFill(uptr beg, uptr end) {
ReleaseMemoryPagesToOS(beg, end);
}
-#if SANITIZER_ANDROID
-
-#if defined(__aarch64__)
-# define __get_tls() \
- ({ void** __v; __asm__("mrs %0, tpidr_el0" : "=r"(__v)); __v; })
-#elif defined(__arm__)
-# define __get_tls() \
- ({ void** __v; __asm__("mrc p15, 0, %0, c13, c0, 3" : "=r"(__v)); __v; })
-#elif defined(__mips__)
+# if SANITIZER_ANDROID
+
+# if defined(__aarch64__)
+# define __get_tls() \
+ ({ \
+ void **__v; \
+ __asm__("mrs %0, tpidr_el0" : "=r"(__v)); \
+ __v; \
+ })
+# elif defined(__arm__)
+# define __get_tls() \
+ ({ \
+ void **__v; \
+ __asm__("mrc p15, 0, %0, c13, c0, 3" : "=r"(__v)); \
+ __v; \
+ })
+# elif defined(__mips__)
// On mips32r1, this goes via a kernel illegal instruction trap that's
// optimized for v1.
-# define __get_tls() \
- ({ register void** __v asm("v1"); \
- __asm__(".set push\n" \
- ".set mips32r2\n" \
- "rdhwr %0,$29\n" \
- ".set pop\n" : "=r"(__v)); \
- __v; })
-#elif defined (__riscv)
-# define __get_tls() \
- ({ void** __v; __asm__("mv %0, tp" : "=r"(__v)); __v; })
-#elif defined(__i386__)
-# define __get_tls() \
- ({ void** __v; __asm__("movl %%gs:0, %0" : "=r"(__v)); __v; })
-#elif defined(__x86_64__)
-# define __get_tls() \
- ({ void** __v; __asm__("mov %%fs:0, %0" : "=r"(__v)); __v; })
-#else
-#error "Unsupported architecture."
-#endif
+# define __get_tls() \
+ ({ \
+ register void **__v asm("v1"); \
+ __asm__( \
+ ".set push\n" \
+ ".set mips32r2\n" \
+ "rdhwr %0,$29\n" \
+ ".set pop\n" \
+ : "=r"(__v)); \
+ __v; \
+ })
+# elif defined(__riscv)
+# define __get_tls() \
+ ({ \
+ void **__v; \
+ __asm__("mv %0, tp" : "=r"(__v)); \
+ __v; \
+ })
+# elif defined(__i386__)
+# define __get_tls() \
+ ({ \
+ void **__v; \
+ __asm__("movl %%gs:0, %0" : "=r"(__v)); \
+ __v; \
+ })
+# elif defined(__x86_64__)
+# define __get_tls() \
+ ({ \
+ void **__v; \
+ __asm__("mov %%fs:0, %0" : "=r"(__v)); \
+ __v; \
+ })
+# else
+# error "Unsupported architecture."
+# endif
// The Android Bionic team has allocated a TLS slot for sanitizers starting
// with Q, given that Android currently doesn't support ELF TLS. It is used to
@@ -175,7 +199,7 @@ ALWAYS_INLINE uptr *get_android_tls_ptr() {
return reinterpret_cast<uptr *>(&__get_tls()[TLS_SLOT_SANITIZER]);
}
-#endif // SANITIZER_ANDROID
+# endif // SANITIZER_ANDROID
} // namespace __sanitizer
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp
index b41f778ea94b9ba..8e942b69e6a7beb 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp
@@ -16,89 +16,89 @@
#if SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_NETBSD || \
SANITIZER_SOLARIS
-#include "sanitizer_allocator_internal.h"
-#include "sanitizer_atomic.h"
-#include "sanitizer_common.h"
-#include "sanitizer_file.h"
-#include "sanitizer_flags.h"
-#include "sanitizer_freebsd.h"
-#include "sanitizer_getauxval.h"
-#include "sanitizer_glibc_version.h"
-#include "sanitizer_linux.h"
-#include "sanitizer_placement_new.h"
-#include "sanitizer_procmaps.h"
-#include "sanitizer_solaris.h"
-
-#if SANITIZER_NETBSD
-#define _RTLD_SOURCE // for __lwp_gettcb_fast() / __lwp_getprivate_fast()
-#endif
+# include "sanitizer_allocator_internal.h"
+# include "sanitizer_atomic.h"
+# include "sanitizer_common.h"
+# include "sanitizer_file.h"
+# include "sanitizer_flags.h"
+# include "sanitizer_freebsd.h"
+# include "sanitizer_getauxval.h"
+# include "sanitizer_glibc_version.h"
+# include "sanitizer_linux.h"
+# include "sanitizer_placement_new.h"
+# include "sanitizer_procmaps.h"
+# include "sanitizer_solaris.h"
+
+# if SANITIZER_NETBSD
+# define _RTLD_SOURCE // for __lwp_gettcb_fast() / __lwp_getprivate_fast()
+# endif
-#include <dlfcn.h> // for dlsym()
-#include <link.h>
-#include <pthread.h>
-#include <signal.h>
-#include <sys/mman.h>
-#include <sys/resource.h>
-#include <syslog.h>
+# include <dlfcn.h> // for dlsym()
+# include <link.h>
+# include <pthread.h>
+# include <signal.h>
+# include <sys/mman.h>
+# include <sys/resource.h>
+# include <syslog.h>
-#if !defined(ElfW)
-#define ElfW(type) Elf_##type
-#endif
+# if !defined(ElfW)
+# define ElfW(type) Elf_##type
+# endif
-#if SANITIZER_FREEBSD
-#include <pthread_np.h>
-#include <osreldate.h>
-#include <sys/auxv.h>
-#include <sys/sysctl.h>
-#define pthread_getattr_np pthread_attr_get_np
+# if SANITIZER_FREEBSD
+# include <osreldate.h>
+# include <pthread_np.h>
+# include <sys/auxv.h>
+# include <sys/sysctl.h>
+# define pthread_getattr_np pthread_attr_get_np
// The MAP_NORESERVE define has been removed in FreeBSD 11.x, and even before
// that, it was never implemented. So just define it to zero.
-#undef MAP_NORESERVE
-#define MAP_NORESERVE 0
+# undef MAP_NORESERVE
+# define MAP_NORESERVE 0
extern const Elf_Auxinfo *__elf_aux_vector;
-#endif
+# endif
-#if SANITIZER_NETBSD
-#include <sys/sysctl.h>
-#include <sys/tls.h>
-#include <lwp.h>
-#endif
+# if SANITIZER_NETBSD
+# include <lwp.h>
+# include <sys/sysctl.h>
+# include <sys/tls.h>
+# endif
-#if SANITIZER_SOLARIS
-#include <stddef.h>
-#include <stdlib.h>
-#include <thread.h>
-#endif
+# if SANITIZER_SOLARIS
+# include <stddef.h>
+# include <stdlib.h>
+# include <thread.h>
+# endif
-#if SANITIZER_ANDROID
-#include <android/api-level.h>
-#if !defined(CPU_COUNT) && !defined(__aarch64__)
-#include <dirent.h>
-#include <fcntl.h>
+# if SANITIZER_ANDROID
+# include <android/api-level.h>
+# if !defined(CPU_COUNT) && !defined(__aarch64__)
+# include <dirent.h>
+# include <fcntl.h>
struct __sanitizer::linux_dirent {
- long d_ino;
- off_t d_off;
+ long d_ino;
+ off_t d_off;
unsigned short d_reclen;
- char d_name[];
+ char d_name[];
};
-#endif
-#endif
+# endif
+# endif
-#if !SANITIZER_ANDROID
-#include <elf.h>
-#include <unistd.h>
-#endif
+# if !SANITIZER_ANDROID
+# include <elf.h>
+# include <unistd.h>
+# endif
namespace __sanitizer {
-SANITIZER_WEAK_ATTRIBUTE int
-real_sigaction(int signum, const void *act, void *oldact);
+SANITIZER_WEAK_ATTRIBUTE int real_sigaction(int signum, const void *act,
+ void *oldact);
int internal_sigaction(int signum, const void *act, void *oldact) {
-#if !SANITIZER_GO
+# if !SANITIZER_GO
if (&real_sigaction)
return real_sigaction(signum, act, oldact);
-#endif
+# endif
return sigaction(signum, (const struct sigaction *)act,
(struct sigaction *)oldact);
}
@@ -113,7 +113,7 @@ void GetThreadStackTopAndBottom(bool at_initialization, uptr *stack_top,
CHECK_EQ(getrlimit(RLIMIT_STACK, &rl), 0);
// Find the mapping that contains a stack variable.
- MemoryMappingLayout proc_maps(/*cache_enabled*/true);
+ MemoryMappingLayout proc_maps(/*cache_enabled*/ true);
if (proc_maps.Error()) {
*stack_top = *stack_bottom = 0;
return;
@@ -121,7 +121,8 @@ void GetThreadStackTopAndBottom(bool at_initialization, uptr *stack_top,
MemoryMappedSegment segment;
uptr prev_end = 0;
while (proc_maps.Next(&segment)) {
- if ((uptr)&rl < segment.end) break;
+ if ((uptr)&rl < segment.end)
+ break;
prev_end = segment.end;
}
CHECK((uptr)&rl >= segment.start && (uptr)&rl < segment.end);
@@ -129,7 +130,8 @@ void GetThreadStackTopAndBottom(bool at_initialization, uptr *stack_top,
// Get stacksize from rlimit, but clip it so that it does not overlap
// with other mappings.
uptr stacksize = rl.rlim_cur;
- if (stacksize > segment.end - prev_end) stacksize = segment.end - prev_end;
+ if (stacksize > segment.end - prev_end)
+ stacksize = segment.end - prev_end;
// When running with unlimited stack size, we still want to set some limit.
// The unlimited stack size is caused by 'ulimit -s unlimited'.
// Also, for some reason, GNU make spawns subprocesses with unlimited stack.
@@ -141,39 +143,39 @@ void GetThreadStackTopAndBottom(bool at_initialization, uptr *stack_top,
}
uptr stacksize = 0;
void *stackaddr = nullptr;
-#if SANITIZER_SOLARIS
+# if SANITIZER_SOLARIS
stack_t ss;
CHECK_EQ(thr_stksegment(&ss), 0);
stacksize = ss.ss_size;
stackaddr = (char *)ss.ss_sp - stacksize;
-#else // !SANITIZER_SOLARIS
+# else // !SANITIZER_SOLARIS
pthread_attr_t attr;
pthread_attr_init(&attr);
CHECK_EQ(pthread_getattr_np(pthread_self(), &attr), 0);
internal_pthread_attr_getstack(&attr, &stackaddr, &stacksize);
pthread_attr_destroy(&attr);
-#endif // SANITIZER_SOLARIS
+# endif // SANITIZER_SOLARIS
*stack_top = (uptr)stackaddr + stacksize;
*stack_bottom = (uptr)stackaddr;
}
-#if !SANITIZER_GO
+# if !SANITIZER_GO
bool SetEnv(const char *name, const char *value) {
void *f = dlsym(RTLD_NEXT, "setenv");
if (!f)
return false;
- typedef int(*setenv_ft)(const char *name, const char *value, int overwrite);
+ typedef int (*setenv_ft)(const char *name, const char *value, int overwrite);
setenv_ft setenv_f;
CHECK_EQ(sizeof(setenv_f), sizeof(f));
internal_memcpy(&setenv_f, &f, sizeof(f));
return setenv_f(name, value, 1) == 0;
}
-#endif
+# endif
__attribute__((unused)) static bool GetLibcVersion(int *major, int *minor,
int *patch) {
-#ifdef _CS_GNU_LIBC_VERSION
+# ifdef _CS_GNU_LIBC_VERSION
char buf[64];
uptr len = confstr(_CS_GNU_LIBC_VERSION, buf, sizeof(buf));
if (len >= sizeof(buf))
@@ -187,9 +189,9 @@ __attribute__((unused)) static bool GetLibcVersion(int *major, int *minor,
*minor = (*p == '.') ? internal_simple_strtoll(p + 1, &p, 10) : 0;
*patch = (*p == '.') ? internal_simple_strtoll(p + 1, &p, 10) : 0;
return true;
-#else
+# else
return false;
-#endif
+# endif
}
// True if we can use dlpi_tls_data. glibc before 2.25 may leave NULL (BZ
@@ -200,42 +202,42 @@ __attribute__((unused)) static bool GetLibcVersion(int *major, int *minor,
// https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254774
__attribute__((unused)) static int g_use_dlpi_tls_data;
-#if SANITIZER_GLIBC && !SANITIZER_GO
+# if SANITIZER_GLIBC && !SANITIZER_GO
__attribute__((unused)) static size_t g_tls_size;
void InitTlsSize() {
int major, minor, patch;
g_use_dlpi_tls_data =
GetLibcVersion(&major, &minor, &patch) && major == 2 && minor >= 25;
-#if defined(__aarch64__) || defined(__x86_64__) || defined(__powerpc64__) || \
- defined(__loongarch__)
+# if defined(__aarch64__) || defined(__x86_64__) || \
+ defined(__powerpc64__) || defined(__loongarch__)
void *get_tls_static_info = dlsym(RTLD_NEXT, "_dl_get_tls_static_info");
size_t tls_align;
((void (*)(size_t *, size_t *))get_tls_static_info)(&g_tls_size, &tls_align);
-#endif
+# endif
}
-#else
-void InitTlsSize() { }
-#endif // SANITIZER_GLIBC && !SANITIZER_GO
+# else
+void InitTlsSize() {}
+# endif // SANITIZER_GLIBC && !SANITIZER_GO
// On glibc x86_64, ThreadDescriptorSize() needs to be precise due to the usage
// of g_tls_size. On other targets, ThreadDescriptorSize() is only used by lsan
// to get the pointer to thread-specific data keys in the thread control block.
-#if (SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_SOLARIS) && \
- !SANITIZER_ANDROID && !SANITIZER_GO
+# if (SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_SOLARIS) && \
+ !SANITIZER_ANDROID && !SANITIZER_GO
// sizeof(struct pthread) from glibc.
static atomic_uintptr_t thread_descriptor_size;
static uptr ThreadDescriptorSizeFallback() {
uptr val = 0;
-#if defined(__x86_64__) || defined(__i386__) || defined(__arm__)
+# if defined(__x86_64__) || defined(__i386__) || defined(__arm__)
int major;
int minor;
int patch;
if (GetLibcVersion(&major, &minor, &patch) && major == 2) {
/* sizeof(struct pthread) values from various glibc versions. */
if (SANITIZER_X32)
- val = 1728; // Assume only one particular version for x32.
+ val = 1728; // Assume only one particular version for x32.
// For ARM sizeof(struct pthread) changed in Glibc 2.23.
else if (SANITIZER_ARM)
val = minor <= 22 ? 1120 : 1216;
@@ -258,19 +260,19 @@ static uptr ThreadDescriptorSizeFallback() {
else // minor == 32
val = FIRST_32_SECOND_64(1344, 2496);
}
-#elif defined(__s390__) || defined(__sparc__)
+# elif defined(__s390__) || defined(__sparc__)
// The size of a prefix of TCB including pthread::{specific_1stblock,specific}
// suffices. Just return offsetof(struct pthread, specific_used), which hasn't
// changed since 2007-05. Technically this applies to i386/x86_64 as well but
// we call _dl_get_tls_static_info and need the precise size of struct
// pthread.
return FIRST_32_SECOND_64(524, 1552);
-#elif defined(__mips__)
+# elif defined(__mips__)
// TODO(sagarthakur): add more values as per different glibc versions.
val = FIRST_32_SECOND_64(1152, 1776);
-#elif SANITIZER_LOONGARCH64
- val = 1856; // from glibc 2.36
-#elif SANITIZER_RISCV64
+# elif SANITIZER_LOONGARCH64
+ val = 1856; // from glibc 2.36
+# elif SANITIZER_RISCV64
int major;
int minor;
int patch;
@@ -285,12 +287,12 @@ static uptr ThreadDescriptorSizeFallback() {
val = 1936; // tested against glibc 2.32
}
-#elif defined(__aarch64__)
+# elif defined(__aarch64__)
// The sizeof (struct pthread) is the same from GLIBC 2.17 to 2.22.
val = 1776;
-#elif defined(__powerpc64__)
- val = 1776; // from glibc.ppc64le 2.20-8.fc21
-#endif
+# elif defined(__powerpc64__)
+ val = 1776; // from glibc.ppc64le 2.20-8.fc21
+# endif
return val;
}
@@ -309,26 +311,26 @@ uptr ThreadDescriptorSize() {
return val;
}
-#if defined(__mips__) || defined(__powerpc64__) || SANITIZER_RISCV64 || \
- SANITIZER_LOONGARCH64
+# if defined(__mips__) || defined(__powerpc64__) || SANITIZER_RISCV64 || \
+ SANITIZER_LOONGARCH64
// TlsPreTcbSize includes size of struct pthread_descr and size of tcb
// head structure. It lies before the static tls blocks.
static uptr TlsPreTcbSize() {
-#if defined(__mips__)
- const uptr kTcbHead = 16; // sizeof (tcbhead_t)
-#elif defined(__powerpc64__)
- const uptr kTcbHead = 88; // sizeof (tcbhead_t)
-#elif SANITIZER_RISCV64
+# if defined(__mips__)
const uptr kTcbHead = 16; // sizeof (tcbhead_t)
-#elif SANITIZER_LOONGARCH64
+# elif defined(__powerpc64__)
+ const uptr kTcbHead = 88; // sizeof (tcbhead_t)
+# elif SANITIZER_RISCV64
const uptr kTcbHead = 16; // sizeof (tcbhead_t)
-#endif
+# elif SANITIZER_LOONGARCH64
+ const uptr kTcbHead = 16; // sizeof (tcbhead_t)
+# endif
const uptr kTlsAlign = 16;
const uptr kTlsPreTcbSize =
RoundUpTo(ThreadDescriptorSize() + kTcbHead, kTlsAlign);
return kTlsPreTcbSize;
}
-#endif
+# endif
namespace {
struct TlsBlock {
@@ -338,7 +340,7 @@ struct TlsBlock {
};
} // namespace
-#ifdef __s390__
+# ifdef __s390__
extern "C" uptr __tls_get_offset(void *arg);
static uptr TlsGetOffset(uptr ti_module, uptr ti_offset) {
@@ -356,16 +358,16 @@ static uptr TlsGetOffset(uptr ti_module, uptr ti_offset) {
: "memory", "cc", "0", "1", "3", "4", "5", "14");
return r2;
}
-#else
+# else
extern "C" void *__tls_get_addr(size_t *);
-#endif
+# endif
static size_t main_tls_modid;
static int CollectStaticTlsBlocks(struct dl_phdr_info *info, size_t size,
void *data) {
size_t tls_modid;
-#if SANITIZER_SOLARIS
+# if SANITIZER_SOLARIS
// dlpi_tls_modid is only available since Solaris 11.4 SRU 10. Use
// dlinfo(RTLD_DI_LINKMAP) instead which works on all of Solaris 11.3,
// 11.4, and Illumos. The tlsmodid of the executable was changed to 1 in
@@ -378,27 +380,26 @@ static int CollectStaticTlsBlocks(struct dl_phdr_info *info, size_t size,
Rt_map *map;
dlinfo(RTLD_SELF, RTLD_DI_LINKMAP, &map);
tls_modid = map->rt_tlsmodid;
-#else
+# else
main_tls_modid = 1;
tls_modid = info->dlpi_tls_modid;
-#endif
+# endif
if (tls_modid < main_tls_modid)
return 0;
uptr begin;
-#if !SANITIZER_SOLARIS
+# if !SANITIZER_SOLARIS
begin = (uptr)info->dlpi_tls_data;
-#endif
+# endif
if (!g_use_dlpi_tls_data) {
// Call __tls_get_addr as a fallback. This forces TLS allocation on glibc
// and FreeBSD.
-#ifdef __s390__
- begin = (uptr)__builtin_thread_pointer() +
- TlsGetOffset(tls_modid, 0);
-#else
+# ifdef __s390__
+ begin = (uptr)__builtin_thread_pointer() + TlsGetOffset(tls_modid, 0);
+# else
size_t mod_and_off[2] = {tls_modid, 0};
begin = (uptr)__tls_get_addr(mod_and_off);
-#endif
+# endif
}
for (unsigned i = 0; i != info->dlpi_phnum; ++i)
if (info->dlpi_phdr[i].p_type == PT_TLS) {
@@ -441,23 +442,21 @@ __attribute__((unused)) static void GetStaticTlsBoundary(uptr *addr, uptr *size,
*addr = ranges[l].begin;
*size = ranges[r - 1].end - ranges[l].begin;
}
-#endif // (x86_64 || i386 || mips || ...) && (SANITIZER_FREEBSD ||
- // SANITIZER_LINUX) && !SANITIZER_ANDROID && !SANITIZER_GO
+# endif // (x86_64 || i386 || mips || ...) && (SANITIZER_FREEBSD ||
+ // SANITIZER_LINUX) && !SANITIZER_ANDROID && !SANITIZER_GO
-#if SANITIZER_NETBSD
-static struct tls_tcb * ThreadSelfTlsTcb() {
+# if SANITIZER_NETBSD
+static struct tls_tcb *ThreadSelfTlsTcb() {
struct tls_tcb *tcb = nullptr;
-#ifdef __HAVE___LWP_GETTCB_FAST
+# ifdef __HAVE___LWP_GETTCB_FAST
tcb = (struct tls_tcb *)__lwp_gettcb_fast();
-#elif defined(__HAVE___LWP_GETPRIVATE_FAST)
+# elif defined(__HAVE___LWP_GETPRIVATE_FAST)
tcb = (struct tls_tcb *)__lwp_getprivate_fast();
-#endif
+# endif
return tcb;
}
-uptr ThreadSelf() {
- return (uptr)ThreadSelfTlsTcb()->tcb_pthread;
-}
+uptr ThreadSelf() { return (uptr)ThreadSelfTlsTcb()->tcb_pthread; }
int GetSizeFromHdr(struct dl_phdr_info *info, size_t size, void *data) {
const Elf_Phdr *hdr = info->dlpi_phdr;
@@ -465,23 +464,23 @@ int GetSizeFromHdr(struct dl_phdr_info *info, size_t size, void *data) {
for (; hdr != last_hdr; ++hdr) {
if (hdr->p_type == PT_TLS && info->dlpi_tls_modid == 1) {
- *(uptr*)data = hdr->p_memsz;
+ *(uptr *)data = hdr->p_memsz;
break;
}
}
return 0;
}
-#endif // SANITIZER_NETBSD
+# endif // SANITIZER_NETBSD
-#if SANITIZER_ANDROID
+# if SANITIZER_ANDROID
// Bionic provides this API since S.
extern "C" SANITIZER_WEAK_ATTRIBUTE void __libc_get_static_tls_bounds(void **,
void **);
-#endif
+# endif
-#if !SANITIZER_GO
+# if !SANITIZER_GO
static void GetTls(uptr *addr, uptr *size) {
-#if SANITIZER_ANDROID
+# if SANITIZER_ANDROID
if (&__libc_get_static_tls_bounds) {
void *start_addr;
void *end_addr;
@@ -493,48 +492,48 @@ static void GetTls(uptr *addr, uptr *size) {
*addr = 0;
*size = 0;
}
-#elif SANITIZER_GLIBC && defined(__x86_64__)
+# elif SANITIZER_GLIBC && defined(__x86_64__)
// For aarch64 and x86-64, use an O(1) approach which requires relatively
// precise ThreadDescriptorSize. g_tls_size was initialized in InitTlsSize.
-# if SANITIZER_X32
+# if SANITIZER_X32
asm("mov %%fs:8,%0" : "=r"(*addr));
-# else
+# else
asm("mov %%fs:16,%0" : "=r"(*addr));
-# endif
+# endif
*size = g_tls_size;
*addr -= *size;
*addr += ThreadDescriptorSize();
-#elif SANITIZER_GLIBC && defined(__aarch64__)
+# elif SANITIZER_GLIBC && defined(__aarch64__)
*addr = reinterpret_cast<uptr>(__builtin_thread_pointer()) -
ThreadDescriptorSize();
*size = g_tls_size + ThreadDescriptorSize();
-#elif SANITIZER_GLIBC && defined(__loongarch__)
-# ifdef __clang__
+# elif SANITIZER_GLIBC && defined(__loongarch__)
+# ifdef __clang__
*addr = reinterpret_cast<uptr>(__builtin_thread_pointer()) -
ThreadDescriptorSize();
-# else
+# else
asm("or %0,$tp,$zero" : "=r"(*addr));
*addr -= ThreadDescriptorSize();
-# endif
+# endif
*size = g_tls_size + ThreadDescriptorSize();
-#elif SANITIZER_GLIBC && defined(__powerpc64__)
+# elif SANITIZER_GLIBC && defined(__powerpc64__)
// Workaround for glibc<2.25(?). 2.27 is known to not need this.
uptr tp;
asm("addi %0,13,-0x7000" : "=r"(tp));
const uptr pre_tcb_size = TlsPreTcbSize();
*addr = tp - pre_tcb_size;
*size = g_tls_size + pre_tcb_size;
-#elif SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_SOLARIS
+# elif SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_SOLARIS
uptr align;
GetStaticTlsBoundary(addr, size, &align);
-#if defined(__x86_64__) || defined(__i386__) || defined(__s390__) || \
- defined(__sparc__)
+# if defined(__x86_64__) || defined(__i386__) || defined(__s390__) || \
+ defined(__sparc__)
if (SANITIZER_GLIBC) {
-#if defined(__x86_64__) || defined(__i386__)
+# if defined(__x86_64__) || defined(__i386__)
align = Max<uptr>(align, 64);
-#else
+# else
align = Max<uptr>(align, 16);
-#endif
+# endif
}
const uptr tp = RoundUpTo(*addr + *size, align);
@@ -553,26 +552,26 @@ static void GetTls(uptr *addr, uptr *size) {
// because the number of bytes after pthread::specific is larger.
*addr = tp - RoundUpTo(*size, align);
*size = tp - *addr + ThreadDescriptorSize();
-#else
+# else
if (SANITIZER_GLIBC)
*size += 1664;
else if (SANITIZER_FREEBSD)
*size += 128; // RTLD_STATIC_TLS_EXTRA
-#if defined(__mips__) || defined(__powerpc64__) || SANITIZER_RISCV64
+# if defined(__mips__) || defined(__powerpc64__) || SANITIZER_RISCV64
const uptr pre_tcb_size = TlsPreTcbSize();
*addr -= pre_tcb_size;
*size += pre_tcb_size;
-#else
+# else
// arm and aarch64 reserve two words at TP, so this underestimates the range.
// However, this is sufficient for the purpose of finding the pointers to
// thread-specific data keys.
const uptr tcb_size = ThreadDescriptorSize();
*addr -= tcb_size;
*size += tcb_size;
-#endif
-#endif
-#elif SANITIZER_NETBSD
- struct tls_tcb * const tcb = ThreadSelfTlsTcb();
+# endif
+# endif
+# elif SANITIZER_NETBSD
+ struct tls_tcb *const tcb = ThreadSelfTlsTcb();
*addr = 0;
*size = 0;
if (tcb != 0) {
@@ -585,31 +584,31 @@ static void GetTls(uptr *addr, uptr *size) {
*addr = (uptr)tcb->tcb_dtv[1];
}
}
-#else
-#error "Unknown OS"
-#endif
+# else
+# error "Unknown OS"
+# endif
}
-#endif
+# endif
-#if !SANITIZER_GO
+# if !SANITIZER_GO
uptr GetTlsSize() {
-#if SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_NETBSD || \
- SANITIZER_SOLARIS
+# if SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_NETBSD || \
+ SANITIZER_SOLARIS
uptr addr, size;
GetTls(&addr, &size);
return size;
-#else
+# else
return 0;
-#endif
+# endif
}
-#endif
+# endif
void GetThreadStackAndTls(bool main, uptr *stk_addr, uptr *stk_size,
uptr *tls_addr, uptr *tls_size) {
-#if SANITIZER_GO
+# if SANITIZER_GO
// Stub implementation for Go.
*stk_addr = *stk_size = *tls_addr = *tls_size = 0;
-#else
+# else
GetTls(tls_addr, tls_size);
uptr stack_top, stack_bottom;
@@ -625,16 +624,16 @@ void GetThreadStackAndTls(bool main, uptr *stk_addr, uptr *stk_size,
*stk_size = *tls_addr - *stk_addr;
}
}
-#endif
+# endif
}
-#if !SANITIZER_FREEBSD
+# if !SANITIZER_FREEBSD
typedef ElfW(Phdr) Elf_Phdr;
-#elif SANITIZER_WORDSIZE == 32 && __FreeBSD_version <= 902001 // v9.2
-#define Elf_Phdr XElf32_Phdr
-#define dl_phdr_info xdl_phdr_info
-#define dl_iterate_phdr(c, b) xdl_iterate_phdr((c), (b))
-#endif // !SANITIZER_FREEBSD
+# elif SANITIZER_WORDSIZE == 32 && __FreeBSD_version <= 902001 // v9.2
+# define Elf_Phdr XElf32_Phdr
+# define dl_phdr_info xdl_phdr_info
+# define dl_iterate_phdr(c, b) xdl_iterate_phdr((c), (b))
+# endif // !SANITIZER_FREEBSD
struct DlIteratePhdrData {
InternalMmapVectorNoCtor<LoadedModule> *modules;
@@ -654,8 +653,7 @@ static int AddModuleSegments(const char *module_name, dl_phdr_info *info,
uptr cur_end = cur_beg + phdr->p_memsz;
bool executable = phdr->p_flags & PF_X;
bool writable = phdr->p_flags & PF_W;
- cur_module.addAddressRange(cur_beg, cur_end, executable,
- writable);
+ cur_module.addAddressRange(cur_beg, cur_end, executable, writable);
} else if (phdr->p_type == PT_NOTE) {
# ifdef NT_GNU_BUILD_ID
uptr off = 0;
@@ -706,24 +704,24 @@ static int dl_iterate_phdr_cb(dl_phdr_info *info, size_t size, void *arg) {
return 0;
}
-#if SANITIZER_ANDROID && __ANDROID_API__ < 21
+# if SANITIZER_ANDROID && __ANDROID_API__ < 21
extern "C" __attribute__((weak)) int dl_iterate_phdr(
int (*)(struct dl_phdr_info *, size_t, void *), void *);
-#endif
+# endif
static bool requiresProcmaps() {
-#if SANITIZER_ANDROID && __ANDROID_API__ <= 22
+# if SANITIZER_ANDROID && __ANDROID_API__ <= 22
// Fall back to /proc/maps if dl_iterate_phdr is unavailable or broken.
// The runtime check allows the same library to work with
// both K and L (and future) Android releases.
return AndroidGetApiLevel() <= ANDROID_LOLLIPOP_MR1;
-#else
+# else
return false;
-#endif
+# endif
}
static void procmapsInit(InternalMmapVectorNoCtor<LoadedModule> *modules) {
- MemoryMappingLayout memory_mapping(/*cache_enabled*/true);
+ MemoryMappingLayout memory_mapping(/*cache_enabled*/ true);
memory_mapping.DumpListOfModules(modules);
}
@@ -775,22 +773,19 @@ uptr GetRSS() {
// We need the second number which is RSS in pages.
char *pos = buf;
// Skip the first number.
- while (*pos >= '0' && *pos <= '9')
- pos++;
+ while (*pos >= '0' && *pos <= '9') pos++;
// Skip whitespaces.
- while (!(*pos >= '0' && *pos <= '9') && *pos != 0)
- pos++;
+ while (!(*pos >= '0' && *pos <= '9') && *pos != 0) pos++;
// Read the number.
uptr rss = 0;
- while (*pos >= '0' && *pos <= '9')
- rss = rss * 10 + *pos++ - '0';
+ while (*pos >= '0' && *pos <= '9') rss = rss * 10 + *pos++ - '0';
return rss * GetPageSizeCached();
}
// sysconf(_SC_NPROCESSORS_{CONF,ONLN}) cannot be used on most platforms as
// they allocate memory.
u32 GetNumberOfCPUs() {
-#if SANITIZER_FREEBSD || SANITIZER_NETBSD
+# if SANITIZER_FREEBSD || SANITIZER_NETBSD
u32 ncpu;
int req[2];
uptr len = sizeof(ncpu);
@@ -798,7 +793,7 @@ u32 GetNumberOfCPUs() {
req[1] = HW_NCPU;
CHECK_EQ(internal_sysctl(req, 2, &ncpu, &len, NULL, 0), 0);
return ncpu;
-#elif SANITIZER_ANDROID && !defined(CPU_COUNT) && !defined(__aarch64__)
+# elif SANITIZER_ANDROID && !defined(CPU_COUNT) && !defined(__aarch64__)
// Fall back to /sys/devices/system/cpu on Android when cpu_set_t doesn't
// exist in sched.h. That is the case for toolchains generated with older
// NDKs.
@@ -826,26 +821,26 @@ u32 GetNumberOfCPUs() {
break;
if (entry->d_ino != 0 && *d_type == DT_DIR) {
if (entry->d_name[0] == 'c' && entry->d_name[1] == 'p' &&
- entry->d_name[2] == 'u' &&
- entry->d_name[3] >= '0' && entry->d_name[3] <= '9')
+ entry->d_name[2] == 'u' && entry->d_name[3] >= '0' &&
+ entry->d_name[3] <= '9')
n_cpus++;
}
entry = (struct linux_dirent *)(((u8 *)entry) + entry->d_reclen);
}
internal_close(fd);
return n_cpus;
-#elif SANITIZER_SOLARIS
+# elif SANITIZER_SOLARIS
return sysconf(_SC_NPROCESSORS_ONLN);
-#else
+# else
cpu_set_t CPUs;
CHECK_EQ(sched_getaffinity(0, sizeof(cpu_set_t), &CPUs), 0);
return CPU_COUNT(&CPUs);
-#endif
+# endif
}
-#if SANITIZER_LINUX
+# if SANITIZER_LINUX
-#if SANITIZER_ANDROID
+# if SANITIZER_ANDROID
static atomic_uint8_t android_log_initialized;
void AndroidLogInit() {
@@ -857,13 +852,15 @@ static bool ShouldLogAfterPrintf() {
return atomic_load(&android_log_initialized, memory_order_acquire);
}
-extern "C" SANITIZER_WEAK_ATTRIBUTE
-int async_safe_write_log(int pri, const char* tag, const char* msg);
-extern "C" SANITIZER_WEAK_ATTRIBUTE
-int __android_log_write(int prio, const char* tag, const char* msg);
+extern "C" SANITIZER_WEAK_ATTRIBUTE int async_safe_write_log(int pri,
+ const char *tag,
+ const char *msg);
+extern "C" SANITIZER_WEAK_ATTRIBUTE int __android_log_write(int prio,
+ const char *tag,
+ const char *msg);
// ANDROID_LOG_INFO is 4, but can't be resolved at runtime.
-#define SANITIZER_ANDROID_LOG_INFO 4
+# define SANITIZER_ANDROID_LOG_INFO 4
// async_safe_write_log is a new public version of __libc_write_log that is
// used behind syslog. It is preferable to syslog as it will not do any dynamic
@@ -882,14 +879,14 @@ void WriteOneLineToSyslog(const char *s) {
}
}
-extern "C" SANITIZER_WEAK_ATTRIBUTE
-void android_set_abort_message(const char *);
+extern "C" SANITIZER_WEAK_ATTRIBUTE void android_set_abort_message(
+ const char *);
void SetAbortMessage(const char *str) {
if (&android_set_abort_message)
android_set_abort_message(str);
}
-#else
+# else
void AndroidLogInit() {}
static bool ShouldLogAfterPrintf() { return true; }
@@ -897,16 +894,16 @@ static bool ShouldLogAfterPrintf() { return true; }
void WriteOneLineToSyslog(const char *s) { syslog(LOG_INFO, "%s", s); }
void SetAbortMessage(const char *str) {}
-#endif // SANITIZER_ANDROID
+# endif // SANITIZER_ANDROID
void LogMessageOnPrintf(const char *str) {
if (common_flags()->log_to_syslog && ShouldLogAfterPrintf())
WriteToSyslog(str);
}
-#endif // SANITIZER_LINUX
+# endif // SANITIZER_LINUX
-#if SANITIZER_GLIBC && !SANITIZER_GO
+# if SANITIZER_GLIBC && !SANITIZER_GO
// glibc crashes when using clock_gettime from a preinit_array function as the
// vDSO function pointers haven't been initialized yet. __progname is
// initialized after the vDSO function pointers, so if it exists, is not null
@@ -917,8 +914,8 @@ inline bool CanUseVDSO() { return &__progname && __progname && *__progname; }
// MonotonicNanoTime is a timing function that can leverage the vDSO by calling
// clock_gettime. real_clock_gettime only exists if clock_gettime is
// intercepted, so define it weakly and use it if available.
-extern "C" SANITIZER_WEAK_ATTRIBUTE
-int real_clock_gettime(u32 clk_id, void *tp);
+extern "C" SANITIZER_WEAK_ATTRIBUTE int real_clock_gettime(u32 clk_id,
+ void *tp);
u64 MonotonicNanoTime() {
timespec ts;
if (CanUseVDSO()) {
@@ -931,26 +928,26 @@ u64 MonotonicNanoTime() {
}
return (u64)ts.tv_sec * (1000ULL * 1000 * 1000) + ts.tv_nsec;
}
-#else
+# else
// Non-glibc & Go always use the regular function.
u64 MonotonicNanoTime() {
timespec ts;
clock_gettime(CLOCK_MONOTONIC, &ts);
return (u64)ts.tv_sec * (1000ULL * 1000 * 1000) + ts.tv_nsec;
}
-#endif // SANITIZER_GLIBC && !SANITIZER_GO
+# endif // SANITIZER_GLIBC && !SANITIZER_GO
void ReExec() {
const char *pathname = "/proc/self/exe";
-#if SANITIZER_FREEBSD
+# if SANITIZER_FREEBSD
for (const auto *aux = __elf_aux_vector; aux->a_type != AT_NULL; aux++) {
if (aux->a_type == AT_EXECPATH) {
pathname = static_cast<const char *>(aux->a_un.a_ptr);
break;
}
}
-#elif SANITIZER_NETBSD
+# elif SANITIZER_NETBSD
static const int name[] = {
CTL_KERN,
KERN_PROC_ARGS,
@@ -963,14 +960,14 @@ void ReExec() {
len = sizeof(path);
if (internal_sysctl(name, ARRAY_SIZE(name), path, &len, NULL, 0) != -1)
pathname = path;
-#elif SANITIZER_SOLARIS
+# elif SANITIZER_SOLARIS
pathname = getexecname();
CHECK_NE(pathname, NULL);
-#elif SANITIZER_USE_GETAUXVAL
+# elif SANITIZER_USE_GETAUXVAL
// Calling execve with /proc/self/exe sets that as $EXEC_ORIGIN. Binaries that
// rely on that will fail to load shared libraries. Query AT_EXECFN instead.
pathname = reinterpret_cast<const char *>(getauxval(AT_EXECFN));
-#endif
+# endif
uptr rv = internal_execve(pathname, GetArgv(), GetEnviron());
int rverrno;
@@ -1022,14 +1019,14 @@ static uptr MmapSharedNoReserve(uptr addr, uptr size) {
static uptr MremapCreateAlias(uptr base_addr, uptr alias_addr,
uptr alias_size) {
-#if SANITIZER_LINUX
+# if SANITIZER_LINUX
return internal_mremap(reinterpret_cast<void *>(base_addr), 0, alias_size,
MREMAP_MAYMOVE | MREMAP_FIXED,
reinterpret_cast<void *>(alias_addr));
-#else
+# else
CHECK(false && "mremap is not supported outside of Linux");
return 0;
-#endif
+# endif
}
static void CreateAliases(uptr start_addr, uptr alias_size, uptr num_aliases) {
@@ -1074,12 +1071,12 @@ uptr MapDynamicShadowAndAliases(uptr shadow_size, uptr alias_size,
}
void InitializePlatformCommonFlags(CommonFlags *cf) {
-#if SANITIZER_ANDROID
+# if SANITIZER_ANDROID
if (&__libc_get_static_tls_bounds == nullptr)
cf->detect_leaks = false;
-#endif
+# endif
}
-} // namespace __sanitizer
+} // namespace __sanitizer
#endif
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_linux_s390.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_linux_s390.cpp
index 74db831b0aaddf4..8523b540f2e5b91 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_linux_s390.cpp
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_linux_s390.cpp
@@ -15,14 +15,14 @@
#if SANITIZER_LINUX && SANITIZER_S390
-#include <dlfcn.h>
-#include <errno.h>
-#include <sys/syscall.h>
-#include <sys/utsname.h>
-#include <unistd.h>
+# include <dlfcn.h>
+# include <errno.h>
+# include <sys/syscall.h>
+# include <sys/utsname.h>
+# include <unistd.h>
-#include "sanitizer_libc.h"
-#include "sanitizer_linux.h"
+# include "sanitizer_libc.h"
+# include "sanitizer_linux.h"
namespace __sanitizer {
@@ -37,22 +37,19 @@ uptr internal_mmap(void *addr, uptr length, int prot, int flags, int fd,
unsigned long fd;
unsigned long offset;
} params = {
- (unsigned long)addr,
- (unsigned long)length,
- (unsigned long)prot,
- (unsigned long)flags,
- (unsigned long)fd,
-# ifdef __s390x__
- (unsigned long)offset,
-# else
+ (unsigned long)addr, (unsigned long)length, (unsigned long)prot,
+ (unsigned long)flags, (unsigned long)fd,
+# ifdef __s390x__
+ (unsigned long)offset,
+# else
(unsigned long)(offset / 4096),
-# endif
+# endif
};
-# ifdef __s390x__
+# ifdef __s390x__
return syscall(__NR_mmap, ¶ms);
-# else
+# else
return syscall(__NR_mmap2, ¶ms);
-# endif
+# endif
}
uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
@@ -63,58 +60,54 @@ uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
}
CHECK_EQ(0, (uptr)child_stack % 16);
// Minimum frame size.
-#ifdef __s390x__
+# ifdef __s390x__
child_stack = (char *)child_stack - 160;
-#else
+# else
child_stack = (char *)child_stack - 96;
-#endif
+# endif
// Terminate unwind chain.
((unsigned long *)child_stack)[0] = 0;
// And pass parameters.
((unsigned long *)child_stack)[1] = (uptr)fn;
((unsigned long *)child_stack)[2] = (uptr)arg;
register uptr res __asm__("r2");
- register void *__cstack __asm__("r2") = child_stack;
- register long __flags __asm__("r3") = flags;
- register int * __ptidptr __asm__("r4") = parent_tidptr;
- register int * __ctidptr __asm__("r5") = child_tidptr;
- register void * __newtls __asm__("r6") = newtls;
+ register void *__cstack __asm__("r2") = child_stack;
+ register long __flags __asm__("r3") = flags;
+ register int *__ptidptr __asm__("r4") = parent_tidptr;
+ register int *__ctidptr __asm__("r5") = child_tidptr;
+ register void *__newtls __asm__("r6") = newtls;
__asm__ __volatile__(
- /* Clone. */
- "svc %1\n"
-
- /* if (%r2 != 0)
- * return;
- */
-#ifdef __s390x__
- "cghi %%r2, 0\n"
-#else
- "chi %%r2, 0\n"
-#endif
- "jne 1f\n"
-
- /* Call "fn(arg)". */
-#ifdef __s390x__
- "lmg %%r1, %%r2, 8(%%r15)\n"
-#else
- "lm %%r1, %%r2, 4(%%r15)\n"
-#endif
- "basr %%r14, %%r1\n"
-
- /* Call _exit(%r2). */
- "svc %2\n"
-
- /* Return to parent. */
- "1:\n"
- : "=r" (res)
- : "i"(__NR_clone), "i"(__NR_exit),
- "r"(__cstack),
- "r"(__flags),
- "r"(__ptidptr),
- "r"(__ctidptr),
- "r"(__newtls)
- : "memory", "cc");
+ /* Clone. */
+ "svc %1\n"
+
+ /* if (%r2 != 0)
+ * return;
+ */
+# ifdef __s390x__
+ "cghi %%r2, 0\n"
+# else
+ "chi %%r2, 0\n"
+# endif
+ "jne 1f\n"
+
+ /* Call "fn(arg)". */
+# ifdef __s390x__
+ "lmg %%r1, %%r2, 8(%%r15)\n"
+# else
+ "lm %%r1, %%r2, 4(%%r15)\n"
+# endif
+ "basr %%r14, %%r1\n"
+
+ /* Call _exit(%r2). */
+ "svc %2\n"
+
+ /* Return to parent. */
+ "1:\n"
+ : "=r"(res)
+ : "i"(__NR_clone), "i"(__NR_exit), "r"(__cstack), "r"(__flags),
+ "r"(__ptidptr), "r"(__ctidptr), "r"(__newtls)
+ : "memory", "cc");
if (res >= (uptr)-4095) {
errno = -res;
return -1;
@@ -122,7 +115,7 @@ uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
return res;
}
-#if SANITIZER_S390_64
+# if SANITIZER_S390_64
static bool FixedCVE_2016_2143() {
// Try to determine if the running kernel has a fix for CVE-2016-2143,
// return false if in doubt (better safe than sorry). Distros may want to
@@ -137,20 +130,20 @@ static bool FixedCVE_2016_2143() {
// At least first 2 should be matched.
if (ptr[0] != '.')
return false;
- minor = internal_simple_strtoll(ptr+1, &ptr, 10);
+ minor = internal_simple_strtoll(ptr + 1, &ptr, 10);
// Third is optional.
if (ptr[0] == '.')
- patch = internal_simple_strtoll(ptr+1, &ptr, 10);
+ patch = internal_simple_strtoll(ptr + 1, &ptr, 10);
if (major < 3) {
if (major == 2 && minor == 6 && patch == 32 && ptr[0] == '-' &&
internal_strstr(ptr, ".el6")) {
// Check RHEL6
- int r1 = internal_simple_strtoll(ptr+1, &ptr, 10);
- if (r1 >= 657) // 2.6.32-657.el6 or later
+ int r1 = internal_simple_strtoll(ptr + 1, &ptr, 10);
+ if (r1 >= 657) // 2.6.32-657.el6 or later
return true;
if (r1 == 642 && ptr[0] == '.') {
- int r2 = internal_simple_strtoll(ptr+1, &ptr, 10);
- if (r2 >= 9) // 2.6.32-642.9.1.el6 or later
+ int r2 = internal_simple_strtoll(ptr + 1, &ptr, 10);
+ if (r2 >= 9) // 2.6.32-642.9.1.el6 or later
return true;
}
}
@@ -166,12 +159,12 @@ static bool FixedCVE_2016_2143() {
if (minor == 10 && patch == 0 && ptr[0] == '-' &&
internal_strstr(ptr, ".el7")) {
// Check RHEL7
- int r1 = internal_simple_strtoll(ptr+1, &ptr, 10);
- if (r1 >= 426) // 3.10.0-426.el7 or later
+ int r1 = internal_simple_strtoll(ptr + 1, &ptr, 10);
+ if (r1 >= 426) // 3.10.0-426.el7 or later
return true;
if (r1 == 327 && ptr[0] == '.') {
- int r2 = internal_simple_strtoll(ptr+1, &ptr, 10);
- if (r2 >= 27) // 3.10.0-327.27.1.el7 or later
+ int r2 = internal_simple_strtoll(ptr + 1, &ptr, 10);
+ if (r2 >= 27) // 3.10.0-327.27.1.el7 or later
return true;
}
}
@@ -187,8 +180,8 @@ static bool FixedCVE_2016_2143() {
if (minor == 4 && patch == 0 && ptr[0] == '-' &&
internal_strstr(buf.version, "Ubuntu")) {
// Check Ubuntu 16.04
- int r1 = internal_simple_strtoll(ptr+1, &ptr, 10);
- if (r1 >= 13) // 4.4.0-13 or later
+ int r1 = internal_simple_strtoll(ptr + 1, &ptr, 10);
+ if (r1 >= 13) // 4.4.0-13 or later
return true;
}
// Otherwise, OK if 4.5+.
@@ -211,18 +204,19 @@ void AvoidCVE_2016_2143() {
if (GetEnv("SANITIZER_IGNORE_CVE_2016_2143"))
return;
Report(
- "ERROR: Your kernel seems to be vulnerable to CVE-2016-2143. Using ASan,\n"
- "MSan, TSan, DFSan or LSan with such kernel can and will crash your\n"
- "machine, or worse.\n"
- "\n"
- "If you are certain your kernel is not vulnerable (you have compiled it\n"
- "yourself, or are using an unrecognized distribution kernel), you can\n"
- "override this safety check by exporting SANITIZER_IGNORE_CVE_2016_2143\n"
- "with any value.\n");
+ "ERROR: Your kernel seems to be vulnerable to CVE-2016-2143. Using "
+ "ASan,\n"
+ "MSan, TSan, DFSan or LSan with such kernel can and will crash your\n"
+ "machine, or worse.\n"
+ "\n"
+ "If you are certain your kernel is not vulnerable (you have compiled it\n"
+ "yourself, or are using an unrecognized distribution kernel), you can\n"
+ "override this safety check by exporting SANITIZER_IGNORE_CVE_2016_2143\n"
+ "with any value.\n");
Die();
}
-#endif
+# endif
-} // namespace __sanitizer
+} // namespace __sanitizer
-#endif // SANITIZER_LINUX && SANITIZER_S390
+#endif // SANITIZER_LINUX && SANITIZER_S390
More information about the llvm-commits
mailing list