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-rw-r--r--Source/bindexplib.cxx82
-rw-r--r--Source/bindexplib.h5
-rw-r--r--Source/cmMakefileTargetGenerator.cxx7
-rw-r--r--Source/cmNinjaNormalTargetGenerator.cxx8
-rw-r--r--Source/cmcmd.cxx13
5 files changed, 108 insertions, 7 deletions
diff --git a/Source/bindexplib.cxx b/Source/bindexplib.cxx
index a107294..7e5db26 100644
--- a/Source/bindexplib.cxx
+++ b/Source/bindexplib.cxx
@@ -64,9 +64,12 @@
*/
#include "bindexplib.h"
+#include "cmSystemTools.h"
#include "cmsys/Encoding.hxx"
#include "cmsys/FStream.hxx"
#include <iostream>
+#include <sstream>
+#include <vector>
#include <windows.h>
#ifndef IMAGE_FILE_MACHINE_ARM
@@ -301,7 +304,63 @@ private:
bool IsI386;
};
-bool DumpFile(const char* filename, std::set<std::string>& symbols,
+bool DumpFileWithLlvmNm(std::string const& nmPath, const char* filename,
+ std::set<std::string>& symbols,
+ std::set<std::string>& dataSymbols)
+{
+ std::string output;
+ // break up command line into a vector
+ std::vector<std::string> command;
+ command.push_back(nmPath);
+ command.push_back("--no-weak");
+ command.push_back("--defined-only");
+ command.push_back("--format=posix");
+ command.push_back(filename);
+
+ // run the command
+ int exit_code = 0;
+ cmSystemTools::RunSingleCommand(command, &output, &output, &exit_code, "",
+ cmSystemTools::OUTPUT_NONE);
+
+ if (exit_code != 0) {
+ fprintf(stderr, "llvm-nm returned an error: %s\n", output.c_str());
+ return false;
+ }
+
+ std::istringstream ss(output);
+ std::string line;
+ while (std::getline(ss, line)) {
+ if (line.empty()) { // last line
+ continue;
+ }
+ size_t sym_end = line.find(" ");
+ if (sym_end == std::string::npos) {
+ fprintf(stderr, "Couldn't parse llvm-nm output line: %s\n",
+ line.c_str());
+ return false;
+ }
+ if (line.size() < sym_end + 1) {
+ fprintf(stderr, "Couldn't parse llvm-nm output line: %s\n",
+ line.c_str());
+ return false;
+ }
+ const std::string sym = line.substr(0, sym_end);
+ const char sym_type = line[sym_end + 1];
+ switch (sym_type) {
+ case 'D':
+ dataSymbols.insert(sym);
+ break;
+ case 'T':
+ symbols.insert(sym);
+ break;
+ }
+ }
+
+ return true;
+}
+
+bool DumpFile(std::string const& nmPath, const char* filename,
+ std::set<std::string>& symbols,
std::set<std::string>& dataSymbols)
{
HANDLE hFile;
@@ -356,16 +415,26 @@ bool DumpFile(const char* filename, std::set<std::string>& symbols,
(imageHeader->Machine == IMAGE_FILE_MACHINE_I386));
symbolDumper.DumpObjFile();
} else {
- // check for /bigobj format
+ // check for /bigobj and llvm LTO format
cmANON_OBJECT_HEADER_BIGOBJ* h =
(cmANON_OBJECT_HEADER_BIGOBJ*)lpFileBase;
if (h->Sig1 == 0x0 && h->Sig2 == 0xffff) {
+ // bigobj
DumpSymbols<cmANON_OBJECT_HEADER_BIGOBJ, cmIMAGE_SYMBOL_EX>
symbolDumper((cmANON_OBJECT_HEADER_BIGOBJ*)lpFileBase, symbols,
dataSymbols, (h->Machine == IMAGE_FILE_MACHINE_I386));
symbolDumper.DumpObjFile();
+ } else if (
+ // BCexCODE - llvm bitcode
+ (h->Sig1 == 0x4342 && h->Sig2 == 0xDEC0) ||
+ // 0x0B17C0DE - llvm bitcode BC wrapper
+ (h->Sig1 == 0x0B17 && h->Sig2 == 0xC0DE)) {
+
+ return DumpFileWithLlvmNm(nmPath, filename, symbols, dataSymbols);
+
} else {
- printf("unrecognized file format in '%s'\n", filename);
+ printf("unrecognized file format in '%s, %u'\n", filename,
+ imageHeader->Machine);
return false;
}
}
@@ -378,7 +447,7 @@ bool DumpFile(const char* filename, std::set<std::string>& symbols,
bool bindexplib::AddObjectFile(const char* filename)
{
- return DumpFile(filename, this->Symbols, this->DataSymbols);
+ return DumpFile(NmPath, filename, this->Symbols, this->DataSymbols);
}
bool bindexplib::AddDefinitionFile(const char* filename)
@@ -419,3 +488,8 @@ void bindexplib::WriteFile(FILE* file)
fprintf(file, "\t%s\n", s.c_str());
}
}
+
+void bindexplib::SetNmPath(std::string const& nm)
+{
+ NmPath = nm;
+}
diff --git a/Source/bindexplib.h b/Source/bindexplib.h
index 3e22ac7..6c066c5 100644
--- a/Source/bindexplib.h
+++ b/Source/bindexplib.h
@@ -12,13 +12,16 @@
class bindexplib
{
public:
- bindexplib() {}
+ bindexplib() { NmPath = "nm"; }
bool AddDefinitionFile(const char* filename);
bool AddObjectFile(const char* filename);
void WriteFile(FILE* file);
+ void SetNmPath(std::string const& nm);
+
private:
std::set<std::string> Symbols;
std::set<std::string> DataSymbols;
+ std::string NmPath;
};
#endif
diff --git a/Source/cmMakefileTargetGenerator.cxx b/Source/cmMakefileTargetGenerator.cxx
index f99fe4e..f84ec76 100644
--- a/Source/cmMakefileTargetGenerator.cxx
+++ b/Source/cmMakefileTargetGenerator.cxx
@@ -15,6 +15,7 @@
#include "cmGeneratorExpression.h"
#include "cmGeneratorTarget.h"
#include "cmGlobalUnixMakefileGenerator3.h"
+#include "cmLocalCommonGenerator.h"
#include "cmLocalUnixMakefileGenerator3.h"
#include "cmMakefile.h"
#include "cmMakefileExecutableTargetGenerator.h"
@@ -1738,6 +1739,12 @@ void cmMakefileTargetGenerator::GenDefFile(
this->LocalGenerator->MaybeConvertToRelativePath(
this->LocalGenerator->GetCurrentBinaryDirectory(), objlist_file),
cmOutputConverter::SHELL);
+ const char* nm_executable = this->Makefile->GetDefinition("CMAKE_NM");
+ if (nm_executable && *nm_executable) {
+ cmd += " --nm=";
+ cmd += this->LocalCommonGenerator->ConvertToOutputFormat(
+ nm_executable, cmOutputConverter::SHELL);
+ }
real_link_commands.insert(real_link_commands.begin(), cmd);
// create a list of obj files for the -E __create_def to read
cmGeneratedFileStream fout(objlist_file);
diff --git a/Source/cmNinjaNormalTargetGenerator.cxx b/Source/cmNinjaNormalTargetGenerator.cxx
index 17a5527..df4d45d 100644
--- a/Source/cmNinjaNormalTargetGenerator.cxx
+++ b/Source/cmNinjaNormalTargetGenerator.cxx
@@ -20,6 +20,7 @@
#include "cmGlobalNinjaGenerator.h"
#include "cmLinkLineComputer.h"
#include "cmLinkLineDeviceComputer.h"
+#include "cmLocalCommonGenerator.h"
#include "cmLocalGenerator.h"
#include "cmLocalNinjaGenerator.h"
#include "cmMakefile.h"
@@ -974,6 +975,13 @@ void cmNinjaNormalTargetGenerator::WriteLinkStatement()
std::string obj_list_file = mdi->DefFile + ".objs";
cmd += this->GetLocalGenerator()->ConvertToOutputFormat(
obj_list_file, cmOutputConverter::SHELL);
+
+ const char* nm_executable = GetMakefile()->GetDefinition("CMAKE_NM");
+ if (nm_executable && *nm_executable) {
+ cmd += " --nm=";
+ cmd += this->LocalCommonGenerator->ConvertToOutputFormat(
+ nm_executable, cmOutputConverter::SHELL);
+ }
preLinkCmdLines.push_back(std::move(cmd));
// create a list of obj files for the -E __create_def to read
diff --git a/Source/cmcmd.cxx b/Source/cmcmd.cxx
index 2be8bae..08cad7d 100644
--- a/Source/cmcmd.cxx
+++ b/Source/cmcmd.cxx
@@ -558,8 +558,8 @@ int cmcmd::ExecuteCMakeCommand(std::vector<std::string> const& args)
#if defined(_WIN32) && !defined(CMAKE_BOOTSTRAP)
else if (args[1] == "__create_def") {
if (args.size() < 4) {
- std::cerr
- << "__create_def Usage: -E __create_def outfile.def objlistfile\n";
+ std::cerr << "__create_def Usage: -E __create_def outfile.def "
+ "objlistfile [-nm=nm-path]\n";
return 1;
}
FILE* fout = cmsys::SystemTools::Fopen(args[2].c_str(), "w+");
@@ -576,6 +576,15 @@ int cmcmd::ExecuteCMakeCommand(std::vector<std::string> const& args)
}
std::string file;
bindexplib deffile;
+ if (args.size() >= 5) {
+ auto a = args[4];
+ if (cmHasLiteralPrefix(a, "--nm=")) {
+ deffile.SetNmPath(a.substr(5));
+ std::cerr << a.substr(5) << "\n";
+ } else {
+ std::cerr << "unknown argument: " << a << "\n";
+ }
+ }
while (cmSystemTools::GetLineFromStream(fin, file)) {
std::string const& ext = cmSystemTools::GetFilenameLastExtension(file);
if (cmSystemTools::LowerCase(ext) == ".def") {
generated by cgit v0.12 at 2024-11-11 02:38:59 (GMT)