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|
# Remove header, including a volatile timestamp, from a .gcno file.
normalize_gcno_file() {
local from="$1"
local to="$2"
tail -c +13 "${from}" >"${to}"
}
SUITE_profiling_PROBE() {
echo 'int main(void) { return 0; }' >test.c
if ! $COMPILER -fprofile-generate -c test.c 2>/dev/null; then
echo "compiler does not support profiling"
fi
if ! $COMPILER -fprofile-generate test.o -o test 2>/dev/null; then
echo "compiler cannot link with profiling"
fi
if ! $COMPILER -fprofile-generate=data -c test.c 2>/dev/null; then
echo "compiler does not support -fprofile-generate=path"
fi
if $COMPILER_TYPE_CLANG && ! command -v llvm-profdata$CLANG_VERSION_SUFFIX >/dev/null; then
echo "llvm-profdata$CLANG_VERSION_SUFFIX tool not found"
fi
}
SUITE_profiling_SETUP() {
echo 'int main(void) { return 0; }' >test.c
unset CCACHE_NODIRECT
}
SUITE_profiling() {
# -------------------------------------------------------------------------
TEST "-fprofile-use, missing file"
$CCACHE_COMPILE -fprofile-use -c test.c 2>/dev/null
expect_stat direct_cache_hit 0
expect_stat cache_miss 0
expect_stat no_input_file 1
# -------------------------------------------------------------------------
TEST "-fbranch-probabilities, missing file"
$CCACHE_COMPILE -fbranch-probabilities -c test.c 2>/dev/null
expect_stat direct_cache_hit 0
expect_stat cache_miss 0
expect_stat no_input_file 1
# -------------------------------------------------------------------------
TEST "-fprofile-use=file, missing file"
$CCACHE_COMPILE -fprofile-use=data.gcda -c test.c 2>/dev/null
expect_stat direct_cache_hit 0
expect_stat cache_miss 0
expect_stat no_input_file 1
# -------------------------------------------------------------------------
if $RUN_WIN_XFAIL; then
TEST "-fprofile-use"
$CCACHE_COMPILE -fprofile-generate -c test.c
expect_stat direct_cache_hit 0
expect_stat cache_miss 1
$COMPILER -fprofile-generate test.o -o test
./test
merge_profiling_data .
$CCACHE_COMPILE -fprofile-use -c test.c
expect_stat direct_cache_hit 0
expect_stat cache_miss 2
$CCACHE_COMPILE -fprofile-use -c test.c
expect_stat direct_cache_hit 1
expect_stat cache_miss 2
./test
merge_profiling_data .
$CCACHE_COMPILE -fprofile-use -c test.c
expect_stat direct_cache_hit 1
expect_stat cache_miss 3
fi
# -------------------------------------------------------------------------
if $RUN_WIN_XFAIL; then
TEST "-fprofile-use=dir"
mkdir data
$CCACHE_COMPILE -fprofile-generate=data -c test.c
expect_stat direct_cache_hit 0
expect_stat cache_miss 1
$COMPILER -fprofile-generate test.o -o test
./test
merge_profiling_data data
$CCACHE_COMPILE -fprofile-use=data -c test.c
expect_stat direct_cache_hit 0
expect_stat cache_miss 2
$CCACHE_COMPILE -fprofile-use=data -c test.c
expect_stat direct_cache_hit 1
expect_stat cache_miss 2
./test
merge_profiling_data data
$CCACHE_COMPILE -fprofile-use=data -c test.c
expect_stat direct_cache_hit 1
expect_stat cache_miss 3
fi
# -------------------------------------------------------------------------
if $RUN_WIN_XFAIL; then
TEST "-fprofile-generate=dir in different directories"
mkdir -p dir1/data dir2/data
cd dir1
$CCACHE_COMPILE -Werror -fprofile-generate=data -c ../test.c \
|| test_failed "compilation error"
expect_stat direct_cache_hit 0
expect_stat cache_miss 1
$CCACHE_COMPILE -Werror -fprofile-generate=data -c ../test.c \
|| test_failed "compilation error"
expect_stat direct_cache_hit 1
expect_stat cache_miss 1
$COMPILER -Werror -fprofile-generate test.o -o test \
|| test_failed "compilation error"
./test || test_failed "execution error"
merge_profiling_data data
$CCACHE_COMPILE -Werror -fprofile-use=data -c ../test.c \
|| test_failed "compilation error"
expect_stat direct_cache_hit 1
expect_stat cache_miss 2
cd ../dir2
$CCACHE_COMPILE -Werror -fprofile-generate=data -c ../test.c \
|| test_failed "compilation error"
expect_stat direct_cache_hit 1
expect_stat cache_miss 3
$CCACHE_COMPILE -Werror -fprofile-generate=data -c ../test.c \
|| test_failed "compilation error"
expect_stat direct_cache_hit 2
expect_stat cache_miss 3
$COMPILER -Werror -fprofile-generate test.o -o test \
|| test_failed "compilation error"
./test || test_failed "execution error"
merge_profiling_data data
$CCACHE_COMPILE -Werror -fprofile-use=data -c ../test.c \
|| test_failed "compilation error"
# Note: No expect_stat here since GCC and Clang behave differently – just
# check that the compiler doesn't warn about not finding the profile data.
fi
# -------------------------------------------------------------------------
if $COMPILER_TYPE_GCC; then
# GCC 9 and newer creates a mangled .gcno filename (still in the current
# working directory) if -fprofile-dir is given.
for flag in "" -fprofile-dir=dir; do
for dir in . subdir; do
TEST "-ftest-coverage with -fprofile-dir=$flag, dir=$dir"
$CCACHE -z >/dev/null
mkdir -p "$dir"
touch "$dir/test.c"
find -name '*.gcno' -delete
$COMPILER $flag -ftest-coverage -c $dir/test.c -o $dir/test.o
gcno_name=$(find -name '*.gcno')
rm "$gcno_name"
$CCACHE_COMPILE $flag -ftest-coverage -c $dir/test.c -o $dir/test.o
expect_stat direct_cache_hit 0
expect_stat cache_miss 1
expect_exists "$gcno_name"
rm "$gcno_name"
$CCACHE_COMPILE $flag -ftest-coverage -c $dir/test.c -o $dir/test.o
expect_stat direct_cache_hit 1
expect_stat cache_miss 1
expect_exists "$gcno_name"
rm "$gcno_name"
done
done
fi
# -------------------------------------------------------------------------
TEST "-fprofile-arcs for different object file paths"
mkdir obj1 obj2
cd obj1
$CCACHE_COMPILE -fprofile-arcs -c ../test.c -o test.o
expect_stat direct_cache_hit 0
expect_stat cache_miss 1
$CCACHE_COMPILE -fprofile-arcs -c ../test.c -o test.o
expect_stat direct_cache_hit 1
expect_stat cache_miss 1
cd ../obj2
$CCACHE_COMPILE -fprofile-arcs -c ../test.c -o test.o
expect_different_content ../obj1/test.o test.o # different paths to .gcda file
expect_stat direct_cache_hit 1
expect_stat cache_miss 2
$CCACHE_COMPILE -fprofile-arcs -c ../test.c -o test.o
expect_different_content ../obj1/test.o test.o # different paths to .gcda file
expect_stat direct_cache_hit 2
expect_stat cache_miss 2
# -------------------------------------------------------------------------
TEST "-ftest-coverage, different directories"
mkdir obj1 obj2
cd obj1
$COMPILER -ftest-coverage -c "$(pwd)/../test.c"
normalize_gcno_file test.gcno test.gcno.reference
$CCACHE_COMPILE -ftest-coverage -c "$(pwd)/../test.c"
expect_stat direct_cache_hit 0
expect_stat cache_miss 1
normalize_gcno_file test.gcno test.gcno.ccache-miss
expect_equal_content test.gcno.reference test.gcno.ccache-miss
$CCACHE_COMPILE -ftest-coverage -c "$(pwd)/../test.c"
expect_stat direct_cache_hit 1
expect_stat cache_miss 1
normalize_gcno_file test.gcno test.gcno.ccache-hit
expect_equal_content test.gcno.reference test.gcno.ccache-hit
cd ../obj2
$COMPILER -ftest-coverage -c "$(pwd)/../test.c"
normalize_gcno_file test.gcno test.gcno.reference
$CCACHE_COMPILE -ftest-coverage -c "$(pwd)/../test.c"
expect_stat direct_cache_hit 1
expect_stat cache_miss 2
normalize_gcno_file test.gcno test.gcno.ccache-miss
expect_equal_content test.gcno.reference test.gcno.ccache-miss
$CCACHE_COMPILE -ftest-coverage -c "$(pwd)/../test.c"
expect_stat direct_cache_hit 2
expect_stat cache_miss 2
normalize_gcno_file test.gcno test.gcno.ccache-hit
expect_equal_content test.gcno.reference test.gcno.ccache-hit
# -------------------------------------------------------------------------
TEST "-ftest-coverage, different directories, basedir, sloppy gcno_cwd"
export CCACHE_SLOPPINESS="$CCACHE_SLOPPINESS gcno_cwd"
export CCACHE_BASEDIR="$(pwd)"
mkdir obj1 obj2
cd obj1
$CCACHE_COMPILE -ftest-coverage -c "$(pwd)/../test.c"
expect_stat direct_cache_hit 0
expect_stat cache_miss 1
$CCACHE_COMPILE -ftest-coverage -c "$(pwd)/../test.c"
expect_stat direct_cache_hit 1
expect_stat cache_miss 1
cd ../obj2
$CCACHE_COMPILE -ftest-coverage -c "$(pwd)/../test.c"
expect_stat direct_cache_hit 2
expect_stat cache_miss 1
}
merge_profiling_data() {
local dir=$1
if $COMPILER_TYPE_CLANG; then
llvm-profdata$CLANG_VERSION_SUFFIX merge -output $dir/default.profdata $dir/*.profraw
fi
}
|
