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[clang-linker-wrapper] Add error handling for missing linker path #15862

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Oct 25, 2024
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[clang-linker-wrapper] Add error handling for missing linker path #15862

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d215cfd
[clang-linker-wrapper] Add error handling for missing linker path
asudarsa Oct 24, 2024
5397a16
Update error message
asudarsa Oct 24, 2024
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4 changes: 4 additions & 0 deletions clang/test/Driver/linker-wrapper-sycl-win.cpp
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Expand Up @@ -112,3 +112,7 @@
// CHK-CMDS-AOT-AMD-NEXT: offload-wrapper: input: [[BUNDLEROUT]], output: [[WRAPPEROUT:.*]].bc
// CHK-CMDS-AOT-AMD-NEXT: "{{.*}}clang.exe"{{.*}} -c -o [[LLCOUT:.*]].o [[WRAPPEROUT]].bc
// CHK-CMDS-AOT-AMD-NEXT: "{{.*}}ld" -- HOST_LINKER_FLAGS -dynamic-linker HOST_DYN_LIB -o a.out [[LLCOUT]].o HOST_LIB_PATH HOST_STAT_LIB {{.*}}.o

// Error handling when --linker-path is not provided for clang-linker-wrapper
// RUN: not clang-linker-wrapper 2>&1 | FileCheck --check-prefix=LINKER-PATH-NOT-PROVIDED %s
// LINKER-PATH-NOT-PROVIDED: linker path missing, must pass 'linker-path'
4 changes: 4 additions & 0 deletions clang/test/Driver/linker-wrapper-sycl.cpp
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Expand Up @@ -190,3 +190,7 @@
// CHK-CMDS-AOT-AMD-EMBED-IR-NEXT: offload-wrapper: input: [[BUNDLEROUT]], output: [[WRAPPEROUT2:.*]]
// CHK-CMDS-AOT-AMD-EMBED-IR-NEXT: "{{.*}}clang"{{.*}} -c -o [[LLCOUT2:.*]] [[WRAPPEROUT2]]
// CHK-CMDS-AOT-AMD-EMBED-IR-NEXT: "{{.*}}ld" -- HOST_LINKER_FLAGS -dynamic-linker HOST_DYN_LIB -o a.out [[LLCOUT1]] [[LLCOUT2]] HOST_LIB_PATH HOST_STAT_LIB {{.*}}.o

// Error handling when --linker-path is not provided for clang-linker-wrapper
// RUN: not clang-linker-wrapper 2>&1 | FileCheck --check-prefix=LINKER-PATH-NOT-PROVIDED %s
// LINKER-PATH-NOT-PROVIDED: linker path missing, must pass 'linker-path'
4 changes: 4 additions & 0 deletions clang/test/Driver/linker-wrapper.c
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Expand Up @@ -250,3 +250,7 @@ __attribute__((visibility("protected"), used)) int x;
// MLLVM-SAME: -Xlinker -mllvm=-pass-remarks=foo,bar
// OFFLOAD-OPT-NOT: -Xlinker -mllvm=-pass-remarks=foo,bar
// OFFLOAD-OPT-SAME: {{$}}

// Error handling when --linker-path is not provided for clang-linker-wrapper
// RUN: not clang-linker-wrapper 2>&1 | FileCheck --check-prefix=LINKER-PATH-NOT-PROVIDED %s
// LINKER-PATH-NOT-PROVIDED: linker path missing, must pass 'linker-path'
2 changes: 2 additions & 0 deletions clang/tools/clang-linker-wrapper/ClangLinkerWrapper.cpp
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Expand Up @@ -411,6 +411,8 @@ Error runLinker(ArrayRef<StringRef> Files, const ArgList &Args) {
// Render the linker arguments and add the newly created image. We add it
// after the output file to ensure it is linked with the correct libraries.
StringRef LinkerPath = Args.getLastArgValue(OPT_linker_path_EQ);
if (LinkerPath.empty())
return createStringError("linker path missing, must pass 'linker-path'");
ArgStringList NewLinkerArgs;
for (const opt::Arg *Arg : Args) {
// Do not forward arguments only intended for the linker wrapper.
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