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coverage: add a wrapper for execvpe()

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It's the exactly same stuff as for execveat() - gcov doesn't have a
wrapper for execvpe() so introduce our own.
This commit is contained in:
Frantisek Sumsal 2023-06-02 16:25:06 +02:00
parent 1326d2dd05
commit 878ec7942f
1 changed files with 17 additions and 6 deletions
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23
src/basic/coverage.h
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@ -20,17 +20,16 @@ static inline _Noreturn void _coverage__exit(int status) {
}
#define _exit(x) _coverage__exit(x)
/* gcov provides wrappers for the exec*() calls but there's none for execveat(),
* which means we lose all coverage prior to the call. To mitigate this, let's
* add a simple execveat() wrapper in gcov's style[0], which dumps and resets
* the coverage data when needed.
*
* This applies only when we're built with -Dfexecve=true.
/* gcov provides wrappers for the exec*() calls but there's none for execveat()
* and execvpe() which means we lose all coverage prior to such call. To mitigate
* this, let's add simple wrappers in gcov's style[0] for these exec*() calls,
* which dump and reset the coverage data as needed.
*
* [0] https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=libgcc/libgcov-interface.c;h=b2ee930864183b78c8826255183ca86e15e21ded;hb=HEAD
*/
extern int execveat(int, const char *, char * const [], char * const [], int);
extern int execvpe(const char *, char * const [], char * const []);
static inline int _coverage_execveat(
int dirfd,
@ -45,3 +44,15 @@ static inline int _coverage_execveat(
return r;
}
#define execveat(d,p,a,e,f) _coverage_execveat(d, p, a, e, f)
static inline int _coverage_execvpe(
const char *file,
char * const argv[],
char * const envp[]) {
__gcov_dump();
int r = execvpe(file, argv, envp);
__gcov_reset();
return r;
}
#define execvpe(f,a,e) _coverage_execvpe(f, a, e)