[llvm] r270491 - Add the printing the Mach-O (__LLVM, __bundle) xar archive file section "verbosely"
Kevin Enderby via llvm-commits
llvm-commits at lists.llvm.org
Mon May 23 14:34:13 PDT 2016
Author: enderby
Date: Mon May 23 16:34:12 2016
New Revision: 270491
URL: http://llvm.org/viewvc/llvm-project?rev=270491&view=rev
Log:
Add the printing the Mach-O (__LLVM,__bundle) xar archive file section "verbosely"
to llvm-objdump. This section is created with -fembed-bitcode option.
This requires the use of libxar and the Cmake and lit support were crafted by
Chris Bieneman!
rdar://26202242
Added:
llvm/trunk/test/tools/llvm-objdump/Inputs/LLVM-bundle.macho-x86_64 (with props)
llvm/trunk/test/tools/llvm-objdump/macho-LLVM-bundle.test
Modified:
llvm/trunk/cmake/config-ix.cmake
llvm/trunk/include/llvm/Config/config.h.cmake
llvm/trunk/lib/Object/CMakeLists.txt
llvm/trunk/test/lit.cfg
llvm/trunk/test/lit.site.cfg.in
llvm/trunk/tools/llvm-objdump/MachODump.cpp
Modified: llvm/trunk/cmake/config-ix.cmake
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/cmake/config-ix.cmake?rev=270491&r1=270490&r2=270491&view=diff
==============================================================================
--- llvm/trunk/cmake/config-ix.cmake (original)
+++ llvm/trunk/cmake/config-ix.cmake Mon May 23 16:34:12 2016
@@ -141,6 +141,11 @@ if( NOT PURE_WINDOWS AND NOT LLVM_USE_SA
endif()
endif()
+check_library_exists(xar xar_open "" HAVE_LIBXAR)
+if(HAVE_LIBXAR)
+ set(XAR_LIB xar)
+endif()
+
# function checks
check_symbol_exists(arc4random "stdlib.h" HAVE_DECL_ARC4RANDOM)
check_symbol_exists(backtrace "execinfo.h" HAVE_BACKTRACE)
Modified: llvm/trunk/include/llvm/Config/config.h.cmake
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Config/config.h.cmake?rev=270491&r1=270490&r2=270491&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Config/config.h.cmake (original)
+++ llvm/trunk/include/llvm/Config/config.h.cmake Mon May 23 16:34:12 2016
@@ -322,6 +322,9 @@
/* Define if the setupterm() function is supported this platform. */
#cmakedefine HAVE_TERMINFO ${HAVE_TERMINFO}
+/* Define if the xar_open() function is supported this platform. */
+#cmakedefine HAVE_LIBXAR ${HAVE_LIBXAR}
+
/* Define to 1 if you have the <termios.h> header file. */
#cmakedefine HAVE_TERMIOS_H ${HAVE_TERMIOS_H}
Modified: llvm/trunk/lib/Object/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Object/CMakeLists.txt?rev=270491&r1=270490&r2=270491&view=diff
==============================================================================
--- llvm/trunk/lib/Object/CMakeLists.txt (original)
+++ llvm/trunk/lib/Object/CMakeLists.txt Mon May 23 16:34:12 2016
@@ -21,4 +21,6 @@ add_llvm_library(LLVMObject
DEPENDS
intrinsics_gen
+
+ LINK_LIBS ${XAR_LIB}
)
Modified: llvm/trunk/test/lit.cfg
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/lit.cfg?rev=270491&r1=270490&r2=270491&view=diff
==============================================================================
--- llvm/trunk/test/lit.cfg (original)
+++ llvm/trunk/test/lit.cfg Mon May 23 16:34:12 2016
@@ -497,3 +497,6 @@ except OSError:
if re.search(r'ON', llvm_config_cmd.stdout.read().decode('ascii')):
config.available_features.add('global-isel')
llvm_config_cmd.wait()
+
+if config.have_libxar:
+ config.available_features.add('xar')
Modified: llvm/trunk/test/lit.site.cfg.in
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/lit.site.cfg.in?rev=270491&r1=270490&r2=270491&view=diff
==============================================================================
--- llvm/trunk/test/lit.site.cfg.in (original)
+++ llvm/trunk/test/lit.site.cfg.in Mon May 23 16:34:12 2016
@@ -34,6 +34,7 @@ config.host_ldflags = "@HOST_LDFLAGS@"
config.llvm_use_intel_jitevents = "@LLVM_USE_INTEL_JITEVENTS@"
config.llvm_use_sanitizer = "@LLVM_USE_SANITIZER@"
config.have_zlib = "@HAVE_LIBZ@"
+config.have_libxar = "@HAVE_LIBXAR@"
config.have_dia_sdk = @HAVE_DIA_SDK@
config.enable_ffi = "@LLVM_ENABLE_FFI@"
config.test_examples = "@ENABLE_EXAMPLES@"
Added: llvm/trunk/test/tools/llvm-objdump/Inputs/LLVM-bundle.macho-x86_64
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-objdump/Inputs/LLVM-bundle.macho-x86_64?rev=270491&view=auto
==============================================================================
Binary file - no diff available.
Propchange: llvm/trunk/test/tools/llvm-objdump/Inputs/LLVM-bundle.macho-x86_64
------------------------------------------------------------------------------
svn:executable = *
Propchange: llvm/trunk/test/tools/llvm-objdump/Inputs/LLVM-bundle.macho-x86_64
------------------------------------------------------------------------------
svn:mime-type = application/octet-stream
Added: llvm/trunk/test/tools/llvm-objdump/macho-LLVM-bundle.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-objdump/macho-LLVM-bundle.test?rev=270491&view=auto
==============================================================================
--- llvm/trunk/test/tools/llvm-objdump/macho-LLVM-bundle.test (added)
+++ llvm/trunk/test/tools/llvm-objdump/macho-LLVM-bundle.test Mon May 23 16:34:12 2016
@@ -0,0 +1,60 @@
+# REQUIRES: xar
+# RUN: llvm-objdump -macho -archive-headers -section __LLVM,__bundle %p/Inputs/LLVM-bundle.macho-x86_64 | FileCheck %s
+
+# CHECK: For (__LLVM,__bundle) section: xar header
+# CHECK: magic XAR_HEADER_MAGIC
+# CHECK: size 28
+# CHECK: version 1
+# CHECK: toc_length_compressed 542
+# CHECK: toc_length_uncompressed 1250
+# CHECK: cksum_alg XAR_CKSUM_SHA1
+# CHECK: For (__LLVM,__bundle) section: xar archive files:
+# CHECK: 1664 1
+# CHECK: For (__LLVM,__bundle) section: xar table of contents:
+# CHECK: <?xml version="1.0" encoding="UTF-8"?>
+# CHECK: <xar>
+# CHECK: <subdoc subdoc_name="Ld">
+# CHECK: <version>1.0</version>
+# CHECK: <architecture>x86_64</architecture>
+# CHECK: <platform>MacOSX</platform>
+# CHECK: <sdkversion>10.11.0</sdkversion>
+# CHECK: <dylibs>
+# CHECK: <lib>libSystem.dylib</lib>
+# CHECK: </dylibs>
+# CHECK: <link-options>
+# CHECK: <option>-execute</option>
+# CHECK: <option>-macosx_version_min</option>
+# CHECK: <option>10.11.0</option>
+# CHECK: <option>-e</option>
+# CHECK: <option>_main</option>
+# CHECK: <option>-executable_path</option>
+# CHECK: <option>hello</option>
+# CHECK: </link-options>
+# CHECK: </subdoc>
+# CHECK: <toc>
+# CHECK: <checksum style="sha1">
+# CHECK: <size>20</size>
+# CHECK: <offset>0</offset>
+# CHECK: </checksum>
+# CHECK: <creation-time>2016-05-23T20:49:10</creation-time>
+# CHECK: <file id="1">
+# CHECK: <name>1</name>
+# CHECK: <type>file</type>
+# CHECK: <data>
+# CHECK: <archived-checksum style="sha1">a319940ff5f5248ca8b44cf7b4b65e7dd49a47ab</archived-checksum>
+# CHECK: <extracted-checksum style="sha1">a319940ff5f5248ca8b44cf7b4b65e7dd49a47ab</extracted-checksum>
+# CHECK: <size>1664</size>
+# CHECK: <offset>20</offset>
+# CHECK: <encoding style="application/octet-stream"/>
+# CHECK: <length>1664</length>
+# CHECK: </data>
+# CHECK: <file-type>Bitcode</file-type>
+# CHECK: <clang>
+# CHECK: <cmd>-triple</cmd>
+# CHECK: <cmd>x86_64-apple-macosx10.11.0</cmd>
+# CHECK: <cmd>-emit-obj</cmd>
+# CHECK: <cmd>-disable-llvm-optzns</cmd>
+# CHECK: </clang>
+# CHECK: </file>
+# CHECK: </toc>
+# CHECK: </xar>
Modified: llvm/trunk/tools/llvm-objdump/MachODump.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-objdump/MachODump.cpp?rev=270491&r1=270490&r2=270491&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-objdump/MachODump.cpp (original)
+++ llvm/trunk/tools/llvm-objdump/MachODump.cpp Mon May 23 16:34:12 2016
@@ -42,6 +42,7 @@
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/TargetSelect.h"
+#include "llvm/Support/ToolOutputFile.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <cstring>
@@ -51,6 +52,12 @@
#include <cxxabi.h>
#endif
+#ifdef HAVE_LIBXAR
+extern "C" {
+#include <xar/xar.h>
+}
+#endif
+
using namespace llvm;
using namespace object;
@@ -1041,6 +1048,12 @@ static void DisassembleMachO(StringRef F
StringRef DisSegName, StringRef DisSectName);
static void DumpProtocolSection(MachOObjectFile *O, const char *sect,
uint32_t size, uint32_t addr);
+#ifdef HAVE_LIBXAR
+static void DumpBitcodeSection(MachOObjectFile *O, const char *sect,
+ uint32_t size, bool verbose,
+ bool PrintXarHeader, bool PrintXarFileHeaders,
+ std::string XarMemberName);
+#endif // defined(HAVE_LIBXAR)
static void DumpSectionContents(StringRef Filename, MachOObjectFile *O,
bool verbose) {
@@ -1102,6 +1115,13 @@ static void DumpSectionContents(StringRe
DumpProtocolSection(O, sect, sect_size, sect_addr);
continue;
}
+#ifdef HAVE_LIBXAR
+ if (SegName == "__LLVM" && SectName == "__bundle") {
+ DumpBitcodeSection(O, sect, sect_size, verbose, !NoSymbolicOperands,
+ ArchiveHeaders, "");
+ continue;
+ }
+#endif // defined(HAVE_LIBXAR)
switch (section_type) {
case MachO::S_REGULAR:
DumpRawSectionContents(O, sect, sect_size, sect_addr);
@@ -5645,6 +5665,369 @@ static void DumpProtocolSection(MachOObj
}
}
+#ifdef HAVE_LIBXAR
+inline void swapStruct(struct xar_header &xar) {
+ sys::swapByteOrder(xar.magic);
+ sys::swapByteOrder(xar.size);
+ sys::swapByteOrder(xar.version);
+ sys::swapByteOrder(xar.toc_length_compressed);
+ sys::swapByteOrder(xar.toc_length_uncompressed);
+ sys::swapByteOrder(xar.cksum_alg);
+}
+
+static void PrintModeVerbose(uint32_t mode) {
+ switch(mode & S_IFMT){
+ case S_IFDIR:
+ outs() << "d";
+ break;
+ case S_IFCHR:
+ outs() << "c";
+ break;
+ case S_IFBLK:
+ outs() << "b";
+ break;
+ case S_IFREG:
+ outs() << "-";
+ break;
+ case S_IFLNK:
+ outs() << "l";
+ break;
+ case S_IFSOCK:
+ outs() << "s";
+ break;
+ default:
+ outs() << "?";
+ break;
+ }
+
+ /* owner permissions */
+ if(mode & S_IREAD)
+ outs() << "r";
+ else
+ outs() << "-";
+ if(mode & S_IWRITE)
+ outs() << "w";
+ else
+ outs() << "-";
+ if(mode & S_ISUID)
+ outs() << "s";
+ else if(mode & S_IEXEC)
+ outs() << "x";
+ else
+ outs() << "-";
+
+ /* group permissions */
+ if(mode & (S_IREAD >> 3))
+ outs() << "r";
+ else
+ outs() << "-";
+ if(mode & (S_IWRITE >> 3))
+ outs() << "w";
+ else
+ outs() << "-";
+ if(mode & S_ISGID)
+ outs() << "s";
+ else if(mode & (S_IEXEC >> 3))
+ outs() << "x";
+ else
+ outs() << "-";
+
+ /* other permissions */
+ if(mode & (S_IREAD >> 6))
+ outs() << "r";
+ else
+ outs() << "-";
+ if(mode & (S_IWRITE >> 6))
+ outs() << "w";
+ else
+ outs() << "-";
+ if(mode & S_ISVTX)
+ outs() << "t";
+ else if(mode & (S_IEXEC >> 6))
+ outs() << "x";
+ else
+ outs() << "-";
+}
+
+static void PrintXarFilesSummary(const char *XarFilename, xar_t xar) {
+ xar_iter_t xi;
+ xar_file_t xf;
+ xar_iter_t xp;
+ const char *key, *type, *mode, *user, *group, *size, *mtime, *name, *m;
+ char *endp;
+ uint32_t mode_value;
+
+ xi = xar_iter_new();
+ if (!xi) {
+ errs() << "Can't obtain an xar iterator for xar archive "
+ << XarFilename << "\n";
+ return;
+ }
+
+ // Go through the xar's files.
+ for (xf = xar_file_first(xar, xi); xf; xf = xar_file_next(xi)) {
+ xp = xar_iter_new();
+ if(!xp){
+ errs() << "Can't obtain an xar iterator for xar archive "
+ << XarFilename << "\n";
+ return;
+ }
+ type = nullptr;
+ mode = nullptr;
+ user = nullptr;
+ group = nullptr;
+ size = nullptr;
+ mtime = nullptr;
+ name = nullptr;
+ for(key = xar_prop_first(xf, xp); key; key = xar_prop_next(xp)){
+ const char *val = nullptr;
+ xar_prop_get(xf, key, &val);
+#if 0 // Useful for debugging.
+ outs() << "key: " << key << " value: " << val << "\n";
+#endif
+ if(strcmp(key, "type") == 0)
+ type = val;
+ if(strcmp(key, "mode") == 0)
+ mode = val;
+ if(strcmp(key, "user") == 0)
+ user = val;
+ if(strcmp(key, "group") == 0)
+ group = val;
+ if(strcmp(key, "data/size") == 0)
+ size = val;
+ if(strcmp(key, "mtime") == 0)
+ mtime = val;
+ if(strcmp(key, "name") == 0)
+ name = val;
+ }
+ if(mode != nullptr){
+ mode_value = strtoul(mode, &endp, 8);
+ if(*endp != '\0')
+ outs() << "(mode: \"" << mode << "\" contains non-octal chars) ";
+ if(strcmp(type, "file") == 0)
+ mode_value |= S_IFREG;
+ PrintModeVerbose(mode_value);
+ outs() << " ";
+ }
+ if(user != nullptr)
+ outs() << format("%10s/", user);
+ if(group != nullptr)
+ outs() << format("%-10s ", group);
+ if(size != nullptr)
+ outs() << format("%7s ", size);
+ if(mtime != nullptr){
+ for(m = mtime; *m != 'T' && *m != '\0'; m++)
+ outs() << *m;
+ if(*m == 'T')
+ m++;
+ outs() << " ";
+ for( ; *m != 'Z' && *m != '\0'; m++)
+ outs() << *m;
+ outs() << " ";
+ }
+ if(name != nullptr)
+ outs() << name;
+ outs() << "\n";
+ }
+}
+
+static void DumpBitcodeSection(MachOObjectFile *O, const char *sect,
+ uint32_t size, bool verbose,
+ bool PrintXarHeader, bool PrintXarFileHeaders,
+ std::string XarMemberName) {
+ if(size < sizeof(struct xar_header)) {
+ outs() << "size of (__LLVM,__bundle) section too small (smaller than size "
+ "of struct xar_header)\n";
+ return;
+ }
+ struct xar_header XarHeader;
+ memcpy(&XarHeader, sect, sizeof(struct xar_header));
+ if (sys::IsLittleEndianHost)
+ swapStruct(XarHeader);
+ if (PrintXarHeader) {
+ if (!XarMemberName.empty())
+ outs() << "In xar member " << XarMemberName << ": ";
+ else
+ outs() << "For (__LLVM,__bundle) section: ";
+ outs() << "xar header\n";
+ if (XarHeader.magic == XAR_HEADER_MAGIC)
+ outs() << " magic XAR_HEADER_MAGIC\n";
+ else
+ outs() << " magic "
+ << format_hex(XarHeader.magic, 10, true)
+ << " (not XAR_HEADER_MAGIC)\n";
+ outs() << " size " << XarHeader.size << "\n";
+ outs() << " version " << XarHeader.version << "\n";
+ outs() << " toc_length_compressed " << XarHeader.toc_length_compressed
+ << "\n";
+ outs() << "toc_length_uncompressed " << XarHeader.toc_length_uncompressed
+ << "\n";
+ outs() << " cksum_alg ";
+ switch (XarHeader.cksum_alg) {
+ case XAR_CKSUM_NONE:
+ outs() << "XAR_CKSUM_NONE\n";
+ break;
+ case XAR_CKSUM_SHA1:
+ outs() << "XAR_CKSUM_SHA1\n";
+ break;
+ case XAR_CKSUM_MD5:
+ outs() << "XAR_CKSUM_MD5\n";
+ break;
+ case XAR_CKSUM_SHA256:
+ outs() << "XAR_CKSUM_SHA256\n";
+ break;
+ case XAR_CKSUM_SHA512:
+ outs() << "XAR_CKSUM_SHA512\n";
+ break;
+ default:
+ outs() << XarHeader.cksum_alg << "\n";
+ }
+ }
+
+ SmallString<128> XarFilename;
+ int FD;
+ std::error_code XarEC =
+ sys::fs::createTemporaryFile("llvm-objdump", "xar", FD, XarFilename);
+ if (XarEC) {
+ errs() << XarEC.message() << "\n";
+ return;
+ }
+ tool_output_file XarFile(XarFilename, FD);
+ raw_fd_ostream &XarOut = XarFile.os();
+ StringRef XarContents(sect, size);
+ XarOut << XarContents;
+ XarOut.close();
+ if (XarOut.has_error())
+ return;
+
+ xar_t xar = xar_open(XarFilename.c_str(), READ);
+ if (!xar) {
+ errs() << "Can't create temporary xar archive " << XarFilename << "\n";
+ return;
+ }
+
+ SmallString<128> TocFilename;
+ std::error_code TocEC =
+ sys::fs::createTemporaryFile("llvm-objdump", "toc", TocFilename);
+ if (TocEC) {
+ errs() << TocEC.message() << "\n";
+ return;
+ }
+ xar_serialize(xar, TocFilename.c_str());
+
+ if (PrintXarFileHeaders) {
+ if (!XarMemberName.empty())
+ outs() << "In xar member " << XarMemberName << ": ";
+ else
+ outs() << "For (__LLVM,__bundle) section: ";
+ outs() << "xar archive files:\n";
+ PrintXarFilesSummary(XarFilename.c_str(), xar);
+ }
+
+ ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
+ MemoryBuffer::getFileOrSTDIN(TocFilename.c_str());
+ if (std::error_code EC = FileOrErr.getError()) {
+ errs() << EC.message() << "\n";
+ return;
+ }
+ std::unique_ptr<MemoryBuffer> &Buffer = FileOrErr.get();
+
+ if (!XarMemberName.empty())
+ outs() << "In xar member " << XarMemberName << ": ";
+ else
+ outs() << "For (__LLVM,__bundle) section: ";
+ outs() << "xar table of contents:\n";
+ outs() << Buffer->getBuffer() << "\n";
+
+ // TODO: Go through the xar's files.
+ xar_iter_t xi = xar_iter_new();
+ if(!xi){
+ errs() << "Can't obtain an xar iterator for xar archive "
+ << XarFilename.c_str() << "\n";
+ xar_close(xar);
+ return;
+ }
+ for(xar_file_t xf = xar_file_first(xar, xi); xf; xf = xar_file_next(xi)){
+ const char *key;
+ xar_iter_t xp;
+ const char *member_name, *member_type, *member_size_string;
+ size_t member_size;
+
+ xp = xar_iter_new();
+ if(!xp){
+ errs() << "Can't obtain an xar iterator for xar archive "
+ << XarFilename.c_str() << "\n";
+ xar_close(xar);
+ return;
+ }
+ member_name = NULL;
+ member_type = NULL;
+ member_size_string = NULL;
+ for(key = xar_prop_first(xf, xp); key; key = xar_prop_next(xp)){
+ const char *val = nullptr;
+ xar_prop_get(xf, key, &val);
+#if 0 // Useful for debugging.
+ outs() << "key: " << key << " value: " << val << "\n";
+#endif
+ if(strcmp(key, "name") == 0)
+ member_name = val;
+ if(strcmp(key, "type") == 0)
+ member_type = val;
+ if(strcmp(key, "data/size") == 0)
+ member_size_string = val;
+ }
+ /*
+ * If we find a file with a name, date/size and type properties
+ * and with the type being "file" see if that is a xar file.
+ */
+ if (member_name != NULL && member_type != NULL &&
+ strcmp(member_type, "file") == 0 &&
+ member_size_string != NULL){
+ // Extract the file into a buffer.
+ char *endptr;
+ member_size = strtoul(member_size_string, &endptr, 10);
+ if (*endptr == '\0' && member_size != 0) {
+ char *buffer = (char *) ::operator new (member_size);
+ if (xar_extract_tobuffersz(xar, xf, &buffer, &member_size) == 0) {
+#if 0 // Useful for debugging.
+ outs() << "xar member: " << member_name << " extracted\n";
+#endif
+ // Set the XarMemberName we want to see printed in the header.
+ std::string OldXarMemberName;
+ // If XarMemberName is already set this is nested. So
+ // save the old name and create the nested name.
+ if (!XarMemberName.empty()) {
+ OldXarMemberName = XarMemberName;
+ XarMemberName =
+ (Twine("[") + XarMemberName + "]" + member_name).str();
+ } else {
+ OldXarMemberName = "";
+ XarMemberName = member_name;
+ }
+ // See if this is could be a xar file (nested).
+ if (member_size >= sizeof(struct xar_header)) {
+#if 0 // Useful for debugging.
+ outs() << "could be a xar file: " << member_name << "\n";
+#endif
+ memcpy((char *)&XarHeader, buffer, sizeof(struct xar_header));
+ if (sys::IsLittleEndianHost)
+ swapStruct(XarHeader);
+ if(XarHeader.magic == XAR_HEADER_MAGIC)
+ DumpBitcodeSection(O, buffer, member_size, verbose,
+ PrintXarHeader, PrintXarFileHeaders,
+ XarMemberName);
+ }
+ XarMemberName = OldXarMemberName;
+ }
+ delete buffer;
+ }
+ }
+ xar_iter_free(xp);
+ }
+ xar_close(xar);
+}
+#endif // defined(HAVE_LIBXAR)
+
static void printObjcMetaData(MachOObjectFile *O, bool verbose) {
if (O->is64Bit())
printObjc2_64bit_MetaData(O, verbose);
More information about the llvm-commits
mailing list