bf8f5cc9b5
On WebAssembly, most coverage metadata contents read by llvm-cov (like
`__llvm_covmap` and `__llvm_covfun`) are stored in custom sections
because they are not referenced at runtime. However, `__llvm_prf_names`
is referenced at runtime by the profile runtime library and is read by
llvm-cov post-processing tools, so it needs to be stored in a data
segment, which is allocatable at runtime and accessible by tools as long
as "name" section is present in the binary.
This patch changes the way llvm-cov reads `__llvm_prf_names` on
WebAssembly. Instead of looking for a section, it looks for a data
segment with the same name.
This reverts commit 157f10ddf2 and fixes
PE/COFF `.lprfn$A` section handling.
21 lines
1.4 KiB
C
21 lines
1.4 KiB
C
// Checks for reading various formats.
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// CHECK: [[@LINE+1]]| 100|int main
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int main(int argc, const char *argv[]) {}
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// RUN: llvm-profdata merge %S/Inputs/binary-formats.proftext -o %t.profdata
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// RUN: llvm-cov show %S/Inputs/binary-formats.macho32l -instr-profile %t.profdata -path-equivalence=/tmp,%S %s | FileCheck %s
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// RUN: llvm-cov show %S/Inputs/binary-formats.macho64l -instr-profile %t.profdata -path-equivalence=/tmp,%S %s | FileCheck %s
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// RUN: llvm-cov show %S/Inputs/binary-formats.macho32b -instr-profile %t.profdata -path-equivalence=/tmp,%S %s | FileCheck %s
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// RUN: llvm-cov show %S/Inputs/binary-formats.v3.macho64l -instr-profile %t.profdata -path-equivalence=/tmp,%S %s | FileCheck %s
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// RUN: llvm-cov show %S/Inputs/binary-formats.v6.linux64l -instr-profile %t.profdata -path-equivalence=/tmp,%S %s | FileCheck %s
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// RUN: llvm-profdata merge %S/Inputs/binary-formats.wasm.proftext -o %t.wasm.profdata
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// NOTE: The wasm binary is built with the following command:
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// clang -target wasm32-unknown-wasi %s -o %S/Inputs/binary-formats.v6.wasm32 \
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// -mllvm -enable-name-compression=false \
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// -fprofile-instr-generate -fcoverage-mapping -lwasi-emulated-getpid -lwasi-emulated-mman
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// RUN: llvm-cov show %S/Inputs/binary-formats.v6.wasm32 -instr-profile %t.wasm.profdata -path-equivalence=/tmp,%S %s | FileCheck %s
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// RUN: llvm-cov export %S/Inputs/binary-formats.macho64l -instr-profile %t.profdata | FileCheck %S/Inputs/binary-formats.canonical.json
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