https://github.com/dankm updated
https://github.com/llvm/llvm-project/pull/65812:
>From 416d75e617cc87b6e497815ce6ad1da630eb14a1 Mon Sep 17 00:00:00 2001
From: Dan McGregor <dan.mcgre...@usask.ca>
Date: Mon, 14 Aug 2023 18:44:08 -0600
Subject: [PATCH 1/2] Support: hoist lld's executable name code to Path
Instead of using custom code to find the program name throughout
the codebase, write one function as a path helper to consistently
determine the program name. This globally correctly finds target
names with dots in them (ie freebsd13.2).
---
lld/COFF/Driver.cpp | 2 +-
lld/Common/Args.cpp | 6 ------
lld/ELF/Driver.cpp | 2 +-
lld/MachO/Driver.cpp | 2 +-
lld/include/lld/Common/Args.h | 2 --
lld/wasm/Driver.cpp | 2 +-
lldb/tools/driver/Driver.cpp | 2 +-
llvm/include/llvm/Support/Path.h | 15 +++++++++++++++
llvm/lib/Support/Path.cpp | 8 ++++++++
llvm/tools/llvm-ar/llvm-ar.cpp | 3 ++-
llvm/tools/llvm-cov/llvm-cov.cpp | 2 +-
llvm/tools/llvm-driver/llvm-driver.cpp | 2 +-
llvm/tools/llvm-objcopy/llvm-objcopy.cpp | 2 +-
llvm/tools/llvm-objdump/llvm-objdump.cpp | 2 +-
llvm/tools/llvm-rc/llvm-rc.cpp | 2 +-
llvm/tools/llvm-readobj/llvm-readobj.cpp | 2 +-
llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp | 2 +-
17 files changed, 37 insertions(+), 21 deletions(-)
diff --git a/lld/COFF/Driver.cpp b/lld/COFF/Driver.cpp
index d7476e91e03e384..03a63bf3a306b4d 100644
--- a/lld/COFF/Driver.cpp
+++ b/lld/COFF/Driver.cpp
@@ -68,7 +68,7 @@ bool link(ArrayRef<const char *> args, llvm::raw_ostream
&stdoutOS,
auto *ctx = new COFFLinkerContext;
ctx->e.initialize(stdoutOS, stderrOS, exitEarly, disableOutput);
- ctx->e.logName = args::getFilenameWithoutExe(args[0]);
+ ctx->e.logName = sys::path::program_name(args[0]);
ctx->e.errorLimitExceededMsg = "too many errors emitted, stopping now"
" (use /errorlimit:0 to see all errors)";
diff --git a/lld/Common/Args.cpp b/lld/Common/Args.cpp
index 48c934df3a2c931..b02d023fe19aeb5 100644
--- a/lld/Common/Args.cpp
+++ b/lld/Common/Args.cpp
@@ -85,9 +85,3 @@ std::vector<StringRef> lld::args::getLines(MemoryBufferRef
mb) {
}
return ret;
}
-
-StringRef lld::args::getFilenameWithoutExe(StringRef path) {
- if (path.ends_with_insensitive(".exe"))
- return sys::path::stem(path);
- return sys::path::filename(path);
-}
diff --git a/lld/ELF/Driver.cpp b/lld/ELF/Driver.cpp
index 9d167293574fa64..957d0da1589caf8 100644
--- a/lld/ELF/Driver.cpp
+++ b/lld/ELF/Driver.cpp
@@ -143,7 +143,7 @@ bool link(ArrayRef<const char *> args, llvm::raw_ostream
&stdoutOS,
SharedFile::vernauxNum = 0;
};
- ctx->e.logName = args::getFilenameWithoutExe(args[0]);
+ ctx->e.logName = sys::path::program_name(args[0]);
ctx->e.errorLimitExceededMsg = "too many errors emitted, stopping now (use "
"--error-limit=0 to see all errors)";
diff --git a/lld/MachO/Driver.cpp b/lld/MachO/Driver.cpp
index 00ff3439a043be9..ed0b66d4b2ec6ba 100644
--- a/lld/MachO/Driver.cpp
+++ b/lld/MachO/Driver.cpp
@@ -1428,7 +1428,7 @@ bool link(ArrayRef<const char *> argsArr,
llvm::raw_ostream &stdoutOS,
InputFile::resetIdCount();
};
- ctx->e.logName = args::getFilenameWithoutExe(argsArr[0]);
+ ctx->e.logName = sys::path::program_name(argsArr[0]);
MachOOptTable parser;
InputArgList args = parser.parse(argsArr.slice(1));
diff --git a/lld/include/lld/Common/Args.h b/lld/include/lld/Common/Args.h
index 60f83fbbbf1a3c9..8822707a6a1f212 100644
--- a/lld/include/lld/Common/Args.h
+++ b/lld/include/lld/Common/Args.h
@@ -38,8 +38,6 @@ uint64_t getZOptionValue(llvm::opt::InputArgList &args, int
id, StringRef key,
std::vector<StringRef> getLines(MemoryBufferRef mb);
-StringRef getFilenameWithoutExe(StringRef path);
-
} // namespace args
} // namespace lld
diff --git a/lld/wasm/Driver.cpp b/lld/wasm/Driver.cpp
index c2f5f0185781f36..f13aa520f35b100 100644
--- a/lld/wasm/Driver.cpp
+++ b/lld/wasm/Driver.cpp
@@ -89,7 +89,7 @@ bool link(ArrayRef<const char *> args, llvm::raw_ostream
&stdoutOS,
auto *ctx = new CommonLinkerContext;
ctx->e.initialize(stdoutOS, stderrOS, exitEarly, disableOutput);
- ctx->e.logName = args::getFilenameWithoutExe(args[0]);
+ ctx->e.logName = sys::path::program_name(args[0]);
ctx->e.errorLimitExceededMsg = "too many errors emitted, stopping now (use "
"-error-limit=0 to see all errors)";
diff --git a/lldb/tools/driver/Driver.cpp b/lldb/tools/driver/Driver.cpp
index f8058f868d53ffe..2fb760ca97a001d 100644
--- a/lldb/tools/driver/Driver.cpp
+++ b/lldb/tools/driver/Driver.cpp
@@ -754,7 +754,7 @@ int main(int argc, char const *argv[]) {
ArrayRef<const char *> arg_arr = ArrayRef(argv + 1, argc - 1);
opt::InputArgList input_args =
T.ParseArgs(arg_arr, MissingArgIndex, MissingArgCount);
- llvm::StringRef argv0 = llvm::sys::path::filename(argv[0]);
+ llvm::StringRef argv0 = llvm::sys::path::program_name(argv[0]);
if (input_args.hasArg(OPT_help)) {
printHelp(T, argv0);
diff --git a/llvm/include/llvm/Support/Path.h b/llvm/include/llvm/Support/Path.h
index ce69f32b6cc81ba..405fdc03e020851 100644
--- a/llvm/include/llvm/Support/Path.h
+++ b/llvm/include/llvm/Support/Path.h
@@ -390,6 +390,21 @@ StringRef stem(StringRef path, Style style =
Style::native);
/// @result The extension of \a path.
StringRef extension(StringRef path, Style style = Style::native);
+/// Get the program's name
+///
+/// If the path ends with the string .exe, returns the stem of
+/// \a path. Otherwise returns the filename of \a path.
+///
+/// @code
+/// /foo/prog.exe => prog
+/// /bar/prog => prog
+/// /foo/prog1.2 => prog1.2
+/// @endcode
+///
+/// @param path Input path.
+/// @result The filename of \a path. Without any .exe component
+StringRef program_name(StringRef path, Style style = Style::native);
+
/// Check whether the given char is a path separator on the host OS.
///
/// @param value a character
diff --git a/llvm/lib/Support/Path.cpp b/llvm/lib/Support/Path.cpp
index 7a57c104ef10e7b..5940c99f203c771 100644
--- a/llvm/lib/Support/Path.cpp
+++ b/llvm/lib/Support/Path.cpp
@@ -600,6 +600,14 @@ StringRef extension(StringRef path, Style style) {
return fname.substr(pos);
}
+StringRef program_name(StringRef path, Style style) {
+ // In the future this may need to be extended to other
+ // program suffixes.
+ if (path.ends_with_insensitive(".exe"))
+ return stem(path, style);
+ return filename(path, style);
+}
+
bool is_separator(char value, Style style) {
if (value == '/')
return true;
diff --git a/llvm/tools/llvm-ar/llvm-ar.cpp b/llvm/tools/llvm-ar/llvm-ar.cpp
index 9889ad9de627d51..68b79cb007d1e98 100644
--- a/llvm/tools/llvm-ar/llvm-ar.cpp
+++ b/llvm/tools/llvm-ar/llvm-ar.cpp
@@ -1508,7 +1508,8 @@ int llvm_ar_main(int argc, char **argv, const
llvm::ToolContext &) {
llvm::InitializeAllTargetMCs();
llvm::InitializeAllAsmParsers();
- Stem = sys::path::stem(ToolName);
+ Stem = sys::path::program_name(ToolName);
+
auto Is = [](StringRef Tool) {
// We need to recognize the following filenames.
//
diff --git a/llvm/tools/llvm-cov/llvm-cov.cpp b/llvm/tools/llvm-cov/llvm-cov.cpp
index 5ada55789b24677..e0b9e75f57c441f 100644
--- a/llvm/tools/llvm-cov/llvm-cov.cpp
+++ b/llvm/tools/llvm-cov/llvm-cov.cpp
@@ -59,7 +59,7 @@ int main(int argc, const char **argv) {
InitLLVM X(argc, argv);
// If argv[0] is or ends with 'gcov', always be gcov compatible
- if (sys::path::stem(argv[0]).ends_with_insensitive("gcov"))
+ if (sys::path::program_name(argv[0]).ends_with_insensitive("gcov"))
return gcovMain(argc, argv);
// Check if we are invoking a specific tool command.
diff --git a/llvm/tools/llvm-driver/llvm-driver.cpp
b/llvm/tools/llvm-driver/llvm-driver.cpp
index a0f1ca831d93b6a..ffb3bc0f3a6fdc3 100644
--- a/llvm/tools/llvm-driver/llvm-driver.cpp
+++ b/llvm/tools/llvm-driver/llvm-driver.cpp
@@ -48,7 +48,7 @@ static int findTool(int Argc, char **Argv, const char *Argv0)
{
return 0;
}
- StringRef Stem = sys::path::stem(ToolName);
+ StringRef Stem = sys::path::program_name(ToolName);
auto Is = [=](StringRef Tool) {
auto IsImpl = [=](StringRef Stem) {
auto I = Stem.rfind_insensitive(Tool);
diff --git a/llvm/tools/llvm-objcopy/llvm-objcopy.cpp
b/llvm/tools/llvm-objcopy/llvm-objcopy.cpp
index 2afa97601f5cfd8..9c51958198cb109 100644
--- a/llvm/tools/llvm-objcopy/llvm-objcopy.cpp
+++ b/llvm/tools/llvm-objcopy/llvm-objcopy.cpp
@@ -74,7 +74,7 @@ static ErrorSuccess reportWarning(Error E) {
}
static Expected<DriverConfig> getDriverConfig(ArrayRef<const char *> Args) {
- StringRef Stem = sys::path::stem(ToolName);
+ StringRef Stem = sys::path::program_name(ToolName);
auto Is = [=](StringRef Tool) {
// We need to recognize the following filenames:
//
diff --git a/llvm/tools/llvm-objdump/llvm-objdump.cpp
b/llvm/tools/llvm-objdump/llvm-objdump.cpp
index e4e1ceb9b3f97f6..f6a8417afd72c26 100644
--- a/llvm/tools/llvm-objdump/llvm-objdump.cpp
+++ b/llvm/tools/llvm-objdump/llvm-objdump.cpp
@@ -3297,7 +3297,7 @@ int llvm_objdump_main(int argc, char **argv, const
llvm::ToolContext &) {
std::unique_ptr<CommonOptTable> T;
OptSpecifier Unknown, HelpFlag, HelpHiddenFlag, VersionFlag;
- StringRef Stem = sys::path::stem(ToolName);
+ StringRef Stem = sys::path::program_name(ToolName);
auto Is = [=](StringRef Tool) {
// We need to recognize the following filenames:
//
diff --git a/llvm/tools/llvm-rc/llvm-rc.cpp b/llvm/tools/llvm-rc/llvm-rc.cpp
index b955347f2a8646e..2f93a4931f55a6e 100644
--- a/llvm/tools/llvm-rc/llvm-rc.cpp
+++ b/llvm/tools/llvm-rc/llvm-rc.cpp
@@ -276,7 +276,7 @@ void preprocess(StringRef Src, StringRef Dst, const
RcOptions &Opts,
}
static std::pair<bool, std::string> isWindres(llvm::StringRef Argv0) {
- StringRef ProgName = llvm::sys::path::stem(Argv0);
+ StringRef ProgName = sys::path::program_name(Argv0);
// x86_64-w64-mingw32-windres -> x86_64-w64-mingw32, windres
// llvm-rc -> "", llvm-rc
// aarch64-w64-mingw32-llvm-windres-10.exe -> aarch64-w64-mingw32,
llvm-windres
diff --git a/llvm/tools/llvm-readobj/llvm-readobj.cpp
b/llvm/tools/llvm-readobj/llvm-readobj.cpp
index ca633ceff90800e..2735d31202c6e70 100644
--- a/llvm/tools/llvm-readobj/llvm-readobj.cpp
+++ b/llvm/tools/llvm-readobj/llvm-readobj.cpp
@@ -657,7 +657,7 @@ int llvm_readobj_main(int argc, char **argv, const
llvm::ToolContext &) {
return 0;
}
- if (sys::path::stem(argv[0]).contains("readelf"))
+ if (sys::path::filename(argv[0]).contains("readelf"))
opts::Output = opts::GNU;
parseOptions(Args);
diff --git a/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp
b/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp
index 78a0e6772f3fb36..e06a4a0b8fa4827 100644
--- a/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp
+++ b/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp
@@ -432,7 +432,7 @@ int llvm_symbolizer_main(int argc, char **argv, const
llvm::ToolContext &) {
sys::InitializeCOMRAII COM(sys::COMThreadingMode::MultiThreaded);
ToolName = argv[0];
- bool IsAddr2Line = sys::path::stem(ToolName).contains("addr2line");
+ bool IsAddr2Line = sys::path::filename(ToolName).contains("addr2line");
BumpPtrAllocator A;
StringSaver Saver(A);
SymbolizerOptTable Tbl;
>From 2cec6014163c8557d41fac21c78ab4a5cb536350 Mon Sep 17 00:00:00 2001
From: Dan McGregor <dan.mcgre...@usask.ca>
Date: Thu, 14 Sep 2023 13:16:04 -0600
Subject: [PATCH 2/2] Add tests for program_name path function.
Simple clang test for now, tests in lld and other tools coming soon.
---
clang/lib/Driver/ToolChain.cpp | 9 +------
clang/unittests/Driver/ToolChainTest.cpp | 5 ++++
llvm/test/tools/llvm-ar/tool-name.test | 6 +++++
llvm/unittests/Support/Path.cpp | 32 ++++++++++++++++++++++++
4 files changed, 44 insertions(+), 8 deletions(-)
diff --git a/clang/lib/Driver/ToolChain.cpp b/clang/lib/Driver/ToolChain.cpp
index 410757d5f9e1843..7712ff71e9f0c05 100644
--- a/clang/lib/Driver/ToolChain.cpp
+++ b/clang/lib/Driver/ToolChain.cpp
@@ -326,7 +326,7 @@ static const DriverSuffix *FindDriverSuffix(StringRef
ProgName, size_t &Pos) {
/// Normalize the program name from argv[0] by stripping the file extension if
/// present and lower-casing the string on Windows.
static std::string normalizeProgramName(llvm::StringRef Argv0) {
- std::string ProgName = std::string(llvm::sys::path::filename(Argv0));
+ std::string ProgName = std::string(sys::path::program_name(Argv0));
if (is_style_windows(llvm::sys::path::Style::native)) {
// Transform to lowercase for case insensitive file systems.
std::transform(ProgName.begin(), ProgName.end(), ProgName.begin(),
@@ -345,13 +345,6 @@ static const DriverSuffix *parseDriverSuffix(StringRef
ProgName, size_t &Pos) {
// added via -target as implicit first argument.
const DriverSuffix *DS = FindDriverSuffix(ProgName, Pos);
- if (!DS && ProgName.endswith(".exe")) {
- // Try again after stripping the executable suffix:
- // clang++.exe -> clang++
- ProgName = ProgName.drop_back(StringRef(".exe").size());
- DS = FindDriverSuffix(ProgName, Pos);
- }
-
if (!DS) {
// Try again after stripping any trailing version number:
// clang++3.5 -> clang++
diff --git a/clang/unittests/Driver/ToolChainTest.cpp
b/clang/unittests/Driver/ToolChainTest.cpp
index ae567abb81a9bb4..1542b099c5fd1b7 100644
--- a/clang/unittests/Driver/ToolChainTest.cpp
+++ b/clang/unittests/Driver/ToolChainTest.cpp
@@ -430,6 +430,11 @@ TEST(ToolChainTest, GetTargetAndMode) {
EXPECT_STREQ(Res.DriverMode, "--driver-mode=g++");
EXPECT_TRUE(Res.TargetIsValid);
+ Res = ToolChain::getTargetAndModeFromProgramName(
+ "x86_64-unknown-freebsd13.2-clang-c++");
+ EXPECT_TRUE(Res.TargetPrefix == "x86_64-unknown-freebsd13.2");
+ EXPECT_TRUE(Res.TargetIsValid);
+
Res = ToolChain::getTargetAndModeFromProgramName(
"x86_64-linux-gnu-clang-c++-tot");
EXPECT_TRUE(Res.TargetPrefix == "x86_64-linux-gnu");
diff --git a/llvm/test/tools/llvm-ar/tool-name.test
b/llvm/test/tools/llvm-ar/tool-name.test
index f91ef716d5c3adb..ab25b4e630fbb27 100644
--- a/llvm/test/tools/llvm-ar/tool-name.test
+++ b/llvm/test/tools/llvm-ar/tool-name.test
@@ -5,11 +5,15 @@
# RUN: mkdir %t
# RUN: ln -s llvm-ar %t/llvm-ar-9
# RUN: ln -s llvm-ar %t/ar.exe
+# RUN: ln -s llvm-ar %t/x86_64-portbld-freebsd13.2-llvm-ar
+# RUN: ln -s llvm-ar %t/x86_64-portbld-freebsd13.2-llvm-ar.exe
# RUN: ln -s llvm-ar %t/arm-pokymllib32-linux-gnueabi-llvm-ar-9
# RUN: llvm-ar h | FileCheck %s --check-prefix=DEFAULT
# RUN: %t/llvm-ar-9 h | FileCheck %s --check-prefix=VERSION
# RUN: %t/ar.exe h | FileCheck %s --check-prefix=SUFFIX
+# RUN: %t/x86_64-portbld-freebsd13.2-llvm-ar h | FileCheck %s
--check-prefix=TARGETDOT
+# RUN: %t/x86_64-portbld-freebsd13.2-llvm-ar.exe h | FileCheck %s
--check-prefix=MULTIDOT
## Ensure that the "lib" substring does not result in misidentification as the
## llvm-lib tool.
# RUN: %t/arm-pokymllib32-linux-gnueabi-llvm-ar-9 h | FileCheck %s
--check-prefix=ARM
@@ -17,4 +21,6 @@
# DEFAULT: USAGE: llvm-ar{{ }}
# VERSION: USAGE: llvm-ar-9{{ }}
# SUFFIX: USAGE: ar{{ }}
+# TARGETDOT: USAGE: x86_64-portbld-freebsd13.2-llvm-ar{{ }}
+# MULTIDOT: USAGE: x86_64-portbld-freebsd13.2-llvm-ar{{ }}
# ARM: USAGE: arm-pokymllib32-linux-gnueabi-llvm-ar-9{{ }}
diff --git a/llvm/unittests/Support/Path.cpp b/llvm/unittests/Support/Path.cpp
index 35a01aa27667933..7f8ed9643451052 100644
--- a/llvm/unittests/Support/Path.cpp
+++ b/llvm/unittests/Support/Path.cpp
@@ -1696,6 +1696,38 @@ TEST(Support, ReplacePathPrefix) {
EXPECT_EQ(Path, "C:\\old/foo\\bar");
}
+TEST(Support, FindProgramName) {
+ StringRef WindowsProgName = path::program_name("C:\\Test\\foo.exe",
path::Style::windows);
+ EXPECT_EQ(WindowsProgName, "foo");
+
+ StringRef WindowsProgNameManyDots = path::program_name(
+ "C:\\Test.7\\x86_64-freebsd14.0-clang.exe", path::Style::windows);
+ EXPECT_EQ(WindowsProgNameManyDots, "x86_64-freebsd14.0-clang");
+
+ StringRef PosixProgName = path::program_name("/var/empty/clang.exe",
+ path::Style::posix);
+ EXPECT_EQ(PosixProgName, "clang");
+
+ StringRef PosixProgNameManyDotsExe = path::program_name(
+ "/llvm-test16.4/x86_64-portbld-freebsd13.2-llvm-ar.exe",
+ path::Style::posix);
+ EXPECT_EQ(PosixProgNameManyDotsExe, "x86_64-portbld-freebsd13.2-llvm-ar");
+
+ StringRef PosixProgNameManyDots = path::program_name(
+ "/llvm-test16.4/x86_64-portbld-freebsd13.2-llvm-ar",
+ path::Style::posix);
+ EXPECT_EQ(PosixProgNameManyDots, "x86_64-portbld-freebsd13.2-llvm-ar");
+
+ StringRef PosixProgNameSh = path::program_name(
+ "/llvm-test16.4/x86_64-portbld-freebsd13.2-llvm-ar.sh",
+ path::Style::posix);
+ EXPECT_EQ(PosixProgNameSh, "x86_64-portbld-freebsd13.2-llvm-ar.sh");
+
+ StringRef WorseThanFailure = path::program_name("/var/empty/.exe",
path::Style::posix);
+ EXPECT_EQ(WorseThanFailure, "");
+
+}
+
TEST_F(FileSystemTest, OpenFileForRead) {
// Create a temp file.
int FileDescriptor;
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