chao an
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fa0577ebfb
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boards/arm/gcc: disable coverage analysis temporarily
**Please revert this change if arm resolved this issue in the next release**
ARM GNU toolchain 11.3.Rel1 missing gcov_* symbols:
https://community.arm.com/support-forums/f/compilers-and-libraries-forum/53354/arm-gnu-toolchain-11-3-rel1-missing-gcov_-symbols
$ arm-none-eabi-gcc -v
...
gcc version 11.3.1 20220712 (Arm GNU Toolchain 11.3.Rel1)
$ cat main.c
int __start(void)
{
return 0;
}
Compiler with arm GCC-11.3:
$ arm-none-eabi-gcc -c -Wstrict-prototypes -Os -fno-strict-aliasing -fomit-frame-pointer -fprofile-generate \
-ftest-coverage -mthumb --coverage -fno-common -Wall -Wshadow -Wundef -ffunction-sections -fdata-sections -g \
-mlittle-endian -mcpu=cortex-m0 -mthumb -mfloat-abi=soft main.c -o main.o
$ arm-none-eabi-ld --entry=__start -nostdlib --gc-sections -Tpimoroni-tiny2040-flash.ld -o test_gcov --start-group main.o \
~/gcc/linux/arm/bin/../lib/gcc/arm-none-eabi/11.3.1/thumb/v6-m/nofp/libgcov.a --end-group
arm-none-eabi-ld: main.o: in function `__start':
/home/archer/code/nuttx/n4/incubator-nuttx/main.c:2: undefined reference to `__gcov_indirect_call_profiler_v4'
arm-none-eabi-ld: /home/archer/code/nuttx/n4/incubator-nuttx/main.c:4: undefined reference to `__gcov_indirect_call'
arm-none-eabi-ld: /home/archer/code/nuttx/n4/incubator-nuttx/main.c:4: undefined reference to `__gcov_time_profiler_counter'
link success with arm GCC-10.3:
$ arm-none-eabi-ld --entry=__start -nostdlib --gc-sections -Tpimoroni-tiny2040-flash.ld -o test_gcov --start-group main.o \
~/lib/gcc/arm-none-eabi/10.3.1/thumb/v6-m/nofp/libgcov.a --end-group
$ ls -l test_gcov
-rwxrwxr-x 1 archer archer 68744 10月 24 12:51 test_gcov
Signed-off-by: chao an <anchao@xiaomi.com>
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2022-10-24 20:23:28 +08:00 |
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