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add support for FreeBSD to ido recomp via pre-processor to modify libc_impl.c for bsd conventions and libc calls

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mrpotatogun 2023-07-21 00:16:07 -04:00
parent 9921382a68
commit c4f437ab8a
1 changed files with 20 additions and 0 deletions
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20
tools/ido-static-recomp/libc_impl.c
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@ -308,6 +308,11 @@ static void init_usr_lib_redirect(void) {
if (_NSGetExecutablePath(path, &size) < 0) {
return;
}
#elif defined __FreeBSD__
ssize_t size = readlink("/proc/curproc/file", path, PATH_MAX);
if (size < 0 || size == PATH_MAX) {
return;
}
#else
ssize_t size = readlink("/proc/self/exe", path, PATH_MAX);
if (size < 0 || size == PATH_MAX) {
@ -2499,7 +2504,17 @@ void wrapper_longjmp(uint8_t* mem, uint32_t addr, int status) {
uint32_t wrapper_tempnam(uint8_t *mem, uint32_t dir_addr, uint32_t pfx_addr) {
STRING(dir)
STRING(pfx)
#ifdef __FreeBSD__
//dir is coming in as empty string, or a / at best, force sane location, NULL would force /tmp/ too
//linux man on this call suggests maybe it overrides in-appropriate, ie non-writable, etc to $TEMPDIR
//or /tmp, bsd man for this call doesn't mention it checks at all. not sure if dir is truly coming in
//empty and being masked by glibc checking if its valid, or if its fine and maybe truly a freebsd issue.
//under bsd this is an example ret output passing in dir: /cQyXjG obviously root is a bad place for temp
//files forcing works and might just be replicating the linux/glibc behavior anyway
char *ret = tempnam("/tmp/", pfx);
#else
char *ret = tempnam(dir, pfx);
#endif
char *ret_saved = ret;
if (ret == NULL) {
MEM_U32(ERRNO_ADDR) = errno;
@ -2932,7 +2947,12 @@ uint32_t wrapper_regex(uint8_t* mem, uint32_t re_addr, uint32_t subject_addr, ui
void wrapper___assert(uint8_t* mem, uint32_t assertion_addr, uint32_t file_addr, int line) {
STRING(assertion)
STRING(file)
#ifdef __FreeBSD__
//#define assert(e) ((e) ? (void)0 : __assert(__func__, __FILE__, __LINE__, #e))
__assert("undefinedfunc", file, line, assertion);
#else
__assert(assertion, file, line);
#endif
}
union host_doubleword {