derek.holloway
7502bf64a4
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41 lines
1.8 KiB
C
41 lines
1.8 KiB
C
// REQUIRES: linux, lld-available
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//
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// Make sure the build-id can be found in both EXEC and DYN (PIE) files,
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// even when the note has been loaded at an offset address in memory.
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// (The DYN case would also apply to libraries, not explicitly tested here.)
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// DEFINE: %{cflags} =
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// REDEFINE: %{cflags} = -no-pie
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// RUN: %clang_profgen -fuse-ld=lld -Wl,--build-id -o %t %s %{cflags}
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
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// RUN: llvm-readelf --notes %t > %t2 && llvm-profdata show --binary-ids %t.profraw >> %t2 && FileCheck %s < %t2
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// REDEFINE: %{cflags} = -pie -fPIE
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// RUN: %clang_profgen -fuse-ld=lld -Wl,--build-id -o %t %s %{cflags}
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
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// RUN: llvm-readelf --notes %t > %t2 && llvm-profdata show --binary-ids %t.profraw >> %t2 && FileCheck %s < %t2
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// Moving the note after .bss also gives it extra LOAD segment padding,
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// making its memory offset different than its file offset.
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// RUN: echo "SECTIONS { .note.gnu.build-id : {} } INSERT AFTER .bss;" >%t.script
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// REDEFINE: %{cflags} = -no-pie -Wl,--script=%t.script
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// RUN: %clang_profgen -fuse-ld=lld -Wl,--build-id -o %t %s %{cflags}
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
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// RUN: llvm-readelf --notes %t > %t2 && llvm-profdata show --binary-ids %t.profraw >> %t2 && FileCheck %s < %t2
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// REDEFINE: %{cflags} = -pie -fPIE -Wl,--script=%t.script
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// RUN: %clang_profgen -fuse-ld=lld -Wl,--build-id -o %t %s %{cflags}
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
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// RUN: llvm-readelf --notes %t > %t2 && llvm-profdata show --binary-ids %t.profraw >> %t2 && FileCheck %s < %t2
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// CHECK-LABEL{LITERAL}: .note.gnu.build-id
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// CHECK: Build ID: [[ID:[0-9a-f]+]]
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// CHECK-LABEL{LITERAL}: Instrumentation level: Front-end
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// CHECK-LABEL{LITERAL}: Binary IDs:
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// CHECK-NEXT: [[ID]]
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int main() { return 0; }
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