49c048add4
We add to ensure that we are observing the correct callstack order in memprof during symbolization. There was some confusion whether the order of DIFrame objects were reversed but in reality the leaf function is at index 0 so no code changes are required. Differential Revision: https://reviews.llvm.org/D121759
107 lines
2.9 KiB
Plaintext
107 lines
2.9 KiB
Plaintext
REQUIRES: x86_64-linux
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The input raw profile test has been generated from the following source code:
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```
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#include <stdlib.h>
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#include <string.h>
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__attribute__((always_inline))
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void qux(int x) {
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char *ptr = malloc(x);
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memset(ptr, 0, x);
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free(ptr);
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}
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__attribute__((noinline))
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void foo(int x){ qux(x); }
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__attribute__((noinline))
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void bar(int x) { foo(x); }
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int main(int argc, char **argv) {
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bar(argc);
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return 0;
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}
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```
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Compile and run with the following commands:
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```
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bin/clang -fuse-ld=lld -Wl,--no-rosegment -gmlt -fdebug-info-for-profiling \
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-fmemory-profile -mno-omit-leaf-frame-pointer -fno-omit-frame-pointer \
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-fno-optimize-sibling-calls -m64 -Wl,-build-id inline.c -o memprof-inline.exe
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env MEMPROF_OPTIONS=log_path=stdout ./memprof-inline.exe > inline.memprofraw
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```
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From a debug run we collect the name to guid mappings to ensure that the
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ordering we observe is as expected.
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```
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build-dbg/bin/llvm-profdata show --memory --debug-only=memprof \
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inline.memprofraw --profiled-binary memprof-inline.exe
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FunctionName: qux GUID: 15505678318020221912
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FunctionName: foo GUID: 6699318081062747564
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FunctionName: bar GUID: 16434608426314478903
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FunctionName: main GUID: 15822663052811949562
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[..omit output here which is checked below..]
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```
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RUN: llvm-profdata show --memory %p/Inputs/inline.memprofraw --profiled-binary %p/Inputs/memprof-inline.exe
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CHECK: MemprofProfile:
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CHECK-NEXT: -
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CHECK-NEXT: Header:
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CHECK-NEXT: Version: 1
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CHECK-NEXT: TotalSizeBytes: 880
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CHECK-NEXT: NumSegments: 9
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CHECK-NEXT: NumMibInfo: 2
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CHECK-NEXT: NumStackOffsets: 2
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CHECK-NEXT: Records:
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CHECK-NEXT: -
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CHECK-NEXT: Callstack:
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CHECK-NEXT: -
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CHECK-NEXT: Function: 15505678318020221912
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CHECK-NEXT: LineOffset: 1
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CHECK-NEXT: Column: 15
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CHECK-NEXT: Inline: 0
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CHECK-NEXT: -
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CHECK-NEXT: Function: 6699318081062747564
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CHECK-NEXT: LineOffset: 0
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CHECK-NEXT: Column: 18
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CHECK-NEXT: Inline: 1
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CHECK-NEXT: -
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CHECK-NEXT: Function: 16434608426314478903
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CHECK-NEXT: LineOffset: 0
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CHECK-NEXT: Column: 19
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CHECK-NEXT: Inline: 0
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CHECK-NEXT: -
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CHECK-NEXT: Function: 15822663052811949562
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CHECK-NEXT: LineOffset: 1
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CHECK-NEXT: Column: 3
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CHECK-NEXT: Inline: 0
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CHECK-NEXT: MemInfoBlock:
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CHECK-NEXT: AllocCount: 1
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CHECK-NEXT: TotalAccessCount: 1
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CHECK-NEXT: MinAccessCount: 1
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CHECK-NEXT: MaxAccessCount: 1
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CHECK-NEXT: TotalSize: 1
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CHECK-NEXT: MinSize: 1
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CHECK-NEXT: MaxSize: 1
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CHECK-NEXT: AllocTimestamp: 894
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CHECK-NEXT: DeallocTimestamp: 894
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CHECK-NEXT: TotalLifetime: 0
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CHECK-NEXT: MinLifetime: 0
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CHECK-NEXT: MaxLifetime: 0
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CHECK-NEXT: AllocCpuId: 23
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CHECK-NEXT: DeallocCpuId: 23
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CHECK-NEXT: NumMigratedCpu: 0
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CHECK-NEXT: NumLifetimeOverlaps: 0
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CHECK-NEXT: NumSameAllocCpu: 0
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CHECK-NEXT: NumSameDeallocCpu: 0
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CHECK-NEXT: DataTypeId: {{[0-9]+}}
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