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llvm-project/llvm/test/tools/llvm-cov/binary-formats.c

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InstrProf: Do a better job of reading coverage mapping data. This code was casting regions of a memory buffer to a couple of different structs. This is wrong in a few ways: 1. It breaks aliasing rules. 2. If the buffer isn't aligned, it hits undefined behaviour. 3. It completely ignores endianness differences. 4. The structs being defined for this aren't specifying their padding properly, so this doesn't even represent the data properly on some platforms. This commit is mostly NFC, except that it fixes reading coverage for 32 bit binaries as a side effect of getting rid of the mispadded structs. I've included a test for that. I've also baked in that we only handle little endian more explicitly, since that was true in practice already. I'll fix this to handle endianness properly in a followup commit. llvm-svn: 232346
2015-03-16 14:55:45 +08:00
// Checks for reading various formats.
[llvm-cov] Swapped the line and count columns. In the coverage report, the line and count columns have been swapped to make it more readable. A follow-up commit in compiler-rt is needed Differential Revision: https://reviews.llvm.org/D23281 llvm-svn: 278152
2016-08-10 03:53:35 +08:00
// CHECK: [[@LINE+1]]| 100|int main
InstrProf: Do a better job of reading coverage mapping data. This code was casting regions of a memory buffer to a couple of different structs. This is wrong in a few ways: 1. It breaks aliasing rules. 2. If the buffer isn't aligned, it hits undefined behaviour. 3. It completely ignores endianness differences. 4. The structs being defined for this aren't specifying their padding properly, so this doesn't even represent the data properly on some platforms. This commit is mostly NFC, except that it fixes reading coverage for 32 bit binaries as a side effect of getting rid of the mispadded structs. I've included a test for that. I've also baked in that we only handle little endian more explicitly, since that was true in practice already. I'll fix this to handle endianness properly in a followup commit. llvm-svn: 232346
2015-03-16 14:55:45 +08:00
int main(int argc, const char *argv[]) {}
// RUN: llvm-profdata merge %S/Inputs/binary-formats.proftext -o %t.profdata
llvm-cov: Only emit colour by default if the output is a tty This replaces the -no-color flag with a -color={auto|always|never} option, with auto as the default, which is much saner. llvm-svn: 232693
2015-03-19 08:02:23 +08:00
// RUN: llvm-cov show %S/Inputs/binary-formats.macho32l -instr-profile %t.profdata -filename-equivalence %s | FileCheck %s
// RUN: llvm-cov show %S/Inputs/binary-formats.macho64l -instr-profile %t.profdata -filename-equivalence %s | FileCheck %s
// RUN: llvm-cov show %S/Inputs/binary-formats.macho32b -instr-profile %t.profdata -filename-equivalence %s | FileCheck %s
Retry: [llvm-cov] Add support for exporting coverage data to JSON This enables users to export coverage information as portable JSON for use by analysis tools and storage in document based databases. The export sub-command is invoked just like the others: llvm-cov export -instr-profile path/to/foo.profdata path/to/foo.binary The resulting JSON contains a list of files and functions. Every file object contains a list of segments, expansions, and a summary of the file's region, function, and line coverage. Every function object contains the function's name and regions. There is also a total summary for the entire object file. Changes since the initial commit (r276813): - Fixed the regexes in the tests to handle Windows filepaths. Patch by Eddie Hurtig! Differential Revision: https://reviews.llvm.org/D22651 llvm-svn: 276818
2016-07-27 06:50:58 +08:00
// RUN: llvm-cov export %S/Inputs/binary-formats.macho32l -instr-profile %t.profdata | FileCheck %S/Inputs/binary-formats.canonical.json
// RUN: llvm-cov export %S/Inputs/binary-formats.macho64l -instr-profile %t.profdata | FileCheck %S/Inputs/binary-formats.canonical.json
// RUN: llvm-cov export %S/Inputs/binary-formats.macho32b -instr-profile %t.profdata | FileCheck %S/Inputs/binary-formats.canonical.json