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3648e5db3fc3deae22b08bffa5401ef832fc47e6
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8 Commits

Author SHA1 Message Date
wangmingrong1
3648e5db3f gcov: Refactoring the implementation framework of gcov 
All implementations of gcov are sunk to the kernel implementation
1. Support three dump modes: serial port output, single file output, standard output

Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
 2025-07-03 00:17:58 +08:00
wangmingrong1
f2bc226d26 gcov: use lib_get_tempbuffer instead of using stack 
Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
 2025-07-03 00:17:58 +08:00
wangmingrong1
66e074ed97 gcov: add reboot gcov storage coverage info 
Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
 2025-01-03 21:15:04 +08:00
wangmingrong1
ba50378f01 gcov: Fix gcov fork() issue 
After code coverage is enabled, fork will be replaced by __gcov_fork

Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
 2024-12-18 23:05:52 +08:00
wangmingrong1
79d0bfa8cc gcov.c: Add necessary instrumentation functions 
(.text.ltp_interfaces_sem_unlink_2_2_main+0xd8): undefined reference to `__gcov_execlk'

Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
 2024-12-10 19:42:31 +08:00
wangmingrong1
893e67745b gcc/gcov: Add instrumentation function 
Some functions will insert these functions:
void __gcov_execve(void)
{
}
void __gcov_execv(void)
{
}
void __gcov_fork(void)
{
}

Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
 2024-12-03 23:51:12 +08:00
wangmingrong1
cdbf5c6ebe Fix compilation errors 
CC:  gcov.c gcov.c: In function 'gcov_stdout_dump':
gcov.c:146:50: error: passing argument 3 of '__gcov_info_to_gcda' from incompatible pointer type [-Werror=incompatible-pointer-types]
  146 |       __gcov_info_to_gcda(info, stdout_filename, stdout_dump, NULL, &arg);
      |                                                  ^~~~~~~~~~~
      |                                                  |
      |                                                  void (*)(const void *, size_t,  void *) {aka void (*)(const void *, long unsigned int,  void *)}
In file included from gcov.c:25:
/mnt/vela/github/NX/nuttx/include/gcov.h:139:44: note: expected 'void (*)(const void *, unsigned int,  void *)' but argument is of type 'void (*)(const void *, size_t,  void *)' {aka 'void (*)(const void *, long unsigned int,  void *)'}
  139 |                                 FAR void (*dump)(FAR const void *,
      |                                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
  140 |                                                  unsigned int, FAR void *),
      |                                                  ~~~~~~~~~~~~~~~~~~~~~~~~~

libgcc/gcov.c: In function 'gcov_process_path.constprop':
libgcc/gcov.c:235:29: error: 'filename' may be used uninitialized [-Werror=maybe-uninitialized]
  235 |       tokens[token_count++] = filename;
      |       ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
libgcc/gcov.c:189:13: note: 'filename' was declared here
  189 |   FAR char *filename;

Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
 2024-11-26 19:25:24 +08:00
yinshengkai
0413d74f31 libs: add gcov framework support 
In devices without storage media, you can export data to the
command line and then generate the corresponding gcda file

It can save the result output by calling __gcov_info_to_gcda
The usage is similar to:
https://gcc.gnu.org/onlinedocs/gcc/Freestanding-Environments.html#Profiling-and-Test-Coverage-in-Freestanding-Environments

Usage:
 ./tools/configure.sh qemu-armv7a:nsh
Modify the configuration
+CONFIG_COVERAGE_ALL=y
+CONFIG_COVERAGE_MINI=y
+CONFIG_SYSTEM_GCOV=y
Run:
qemu-system-arm -cpu cortex-a7 -nographic -smp 4 \
     -machine virt,virtualization=off,gic-version=2 \
     -net none -chardev stdio,id=con,mux=on -serial chardev:con \
     -mon chardev=con,mode=readline -kernel ./nuttx/nuttx -semihosting -s | tee gcov.txt
./nuttx/tools/gcov_convert.py -i ./gcov.txt
./nuttx/tools/gcov.sh -t arm-none-eabi-gcov

Signed-off-by: yinshengkai <yinshengkai@xiaomi.com>
 2024-11-22 19:08:08 +08:00