d2c4d1ec48
The `-memprof-runtime-default-options` LLVM flag introduced in
https://github.com/llvm/llvm-project/pull/118874 creates the
`__memprof_default_options_str` symbol with `WeakAnyLinkage` on Darwin.
fa0202169a/llvm/lib/Transforms/Instrumentation/MemProfiler.cpp (L573-L576)
This ensures Darwin passes `-exported_symbol
___memprof_default_options_str` to the linker so that the runtime
library has visibility into this symbol.
This will replace the earlier PR
https://github.com/llvm/llvm-project/pull/128615
27 lines
2.0 KiB
C++
27 lines
2.0 KiB
C++
// RUN: %clangxx --target=x86_64-linux-gnu -fmemory-profile %s -### 2>&1 | FileCheck %s
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// RUN: %clangxx --target=x86_64-linux-gnu -fmemory-profile=foo %s -### 2>&1 | FileCheck %s --check-prefix=DIR
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// RUN: %clangxx --target=x86_64-linux-gnu -fmemory-profile -fno-memory-profile %s -### 2>&1 | FileCheck %s --check-prefix=OFF
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// RUN: %clangxx --target=x86_64-linux-gnu -fmemory-profile=foo -fno-memory-profile %s -### 2>&1 | FileCheck %s --check-prefix=OFF
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// CHECK: "-cc1" {{.*}} "-fmemory-profile"
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// CHECK: ld{{.*}}libclang_rt.memprof{{.*}}libclang_rt.memprof_cxx
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// DIR: "-cc1" {{.*}} "-fmemory-profile=foo"
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// DIR: ld{{.*}}libclang_rt.memprof{{.*}}libclang_rt.memprof_cxx
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// OFF-NOT: "-fmemory-profile"
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// OFF-NOT: libclang_rt.memprof
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// RUN: %clangxx --target=x86_64-linux-gnu -fmemory-profile-use=foo %s -### 2>&1 | FileCheck %s --check-prefix=USE
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// USE: "-cc1" {{.*}} "-fmemory-profile-use=foo"
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// RUN: not %clangxx --target=x86_64-linux-gnu -fmemory-profile -fmemory-profile-use=foo %s -### 2>&1 | FileCheck %s --check-prefix=CONFLICTWITHMEMPROFINSTR
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// CONFLICTWITHMEMPROFINSTR: error: invalid argument '-fmemory-profile-use=foo' not allowed with '-fmemory-profile'
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// RUN: not %clangxx --target=x86_64-linux-gnu -fprofile-generate -fmemory-profile-use=foo %s -### 2>&1 | FileCheck %s --check-prefix=CONFLICTWITHPGOINSTR
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// CONFLICTWITHPGOINSTR: error: invalid argument '-fmemory-profile-use=foo' not allowed with '-fprofile-generate'
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// Test that we export the __memprof_default_options_str on Darwin because it has WeakAnyLinkage
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// RUN: %clangxx --target=arm64-apple-ios -fmemory-profile %s -### 2>&1 | FileCheck %s --check-prefix=EXPORT-BASE --implicit-check-not=exported_symbol
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// RUN: %clangxx --target=arm64-apple-ios -fmemory-profile -exported_symbols_list /dev/null %s -### 2>&1 | FileCheck %s --check-prefixes=EXPORT-BASE,EXPORT
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// FIXME: Darwin needs to link in the runtime, then we can use the regular CHECK prefix
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// EXPORT-BASE: "-cc1" {{.*}} "-fmemory-profile"
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// EXPORT: "-exported_symbol" "___memprof_default_options_str"
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