[compiler-rt] d4aacc1 - [sanitizer] Don't use newfstatat for Linux on SPARC

[Evgenii Stepanov via llvm-commits]

Author: John Paul Adrian Glaubitz
Date: 2022-05-16T12:21:55-07:00
New Revision: d4aacc1a013e9de4011adb051cdcae1ae6fc9baf

URL: https://github.com/llvm/llvm-project/commit/d4aacc1a013e9de4011adb051cdcae1ae6fc9baf
DIFF: https://github.com/llvm/llvm-project/commit/d4aacc1a013e9de4011adb051cdcae1ae6fc9baf.diff

LOG: [sanitizer] Don't use newfstatat for Linux on SPARC

Linux on SPARC uses fstatat64 instead.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D125572

Added: 
    

Modified: 
    compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp
    compiler-rt/lib/sanitizer_common/sanitizer_platform.h

Removed: 
    


################################################################################
diff  --git a/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp
index e2c32d679ad8d..6c6f40a4c05ac 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp
@@ -270,7 +270,7 @@ uptr internal_ftruncate(fd_t fd, uptr size) {
   return res;
 }
 
-#if !SANITIZER_LINUX_USES_64BIT_SYSCALLS && 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;
@@ -343,7 +343,7 @@ uptr internal_stat(const char *path, void *buf) {
 #if SANITIZER_FREEBSD
   return internal_syscall(SYSCALL(fstatat), AT_FDCWD, (uptr)path, (uptr)buf, 0);
 #    elif SANITIZER_LINUX
-#      if SANITIZER_WORDSIZE == 64 || SANITIZER_X32
+#      if (SANITIZER_WORDSIZE == 64 || SANITIZER_X32) && !SANITIZER_SPARC
   return internal_syscall(SYSCALL(newfstatat), AT_FDCWD, (uptr)path, (uptr)buf,
                           0);
 #      else
@@ -366,7 +366,7 @@ uptr internal_lstat(const char *path, void *buf) {
   return internal_syscall(SYSCALL(fstatat), AT_FDCWD, (uptr)path, (uptr)buf,
                           AT_SYMLINK_NOFOLLOW);
 #    elif SANITIZER_LINUX
-#      if defined(_LP64) || SANITIZER_X32
+#      if (defined(_LP64) || SANITIZER_X32) && !SANITIZER_SPARC
   return internal_syscall(SYSCALL(newfstatat), AT_FDCWD, (uptr)path, (uptr)buf,
                           AT_SYMLINK_NOFOLLOW);
 #      else

diff  --git a/compiler-rt/lib/sanitizer_common/sanitizer_platform.h b/compiler-rt/lib/sanitizer_common/sanitizer_platform.h
index 8fe0d8314312c..adc52be5e3cd6 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_platform.h
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_platform.h
@@ -187,6 +187,21 @@
 #  define SANITIZER_S390_64 0
 #endif
 
+#if defined(__sparc__)
+#  define SANITIZER_SPARC 1
+#  if defined(__arch64__)
+#    define SANITIZER_SPARC32 0
+#    define SANITIZER_SPARC64 1
+#  else
+#    define SANITIZER_SPARC32 1
+#    define SANITIZER_SPARC64 0
+#  endif
+#else
+#  define SANITIZER_SPARC 0
+#  define SANITIZER_SPARC32 0
+#  define SANITIZER_SPARC64 0
+#endif
+
 #if defined(__powerpc__)
 #  define SANITIZER_PPC 1
 #  if defined(__powerpc64__)