53 lines
2.7 KiB
C
53 lines
2.7 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2020 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ This program is free software; you can redistribute it and/or modify │
|
|
│ it under the terms of the GNU General Public License as published by │
|
|
│ the Free Software Foundation; version 2 of the License. │
|
|
│ │
|
|
│ This program is distributed in the hope that it will be useful, but │
|
|
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
|
|
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
|
|
│ General Public License for more details. │
|
|
│ │
|
|
│ You should have received a copy of the GNU General Public License │
|
|
│ along with this program; if not, write to the Free Software │
|
|
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
|
|
│ 02110-1301 USA │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/macros.h"
|
|
#include "libc/runtime/runtime.h"
|
|
#include "libc/str/str.h"
|
|
#include "libc/sysv/consts/auxv.h"
|
|
|
|
struct FindComBinary {
|
|
bool once;
|
|
const char *res;
|
|
char buf[PATH_MAX];
|
|
};
|
|
|
|
static struct FindComBinary findcombinary_;
|
|
|
|
/**
|
|
* Returns path of binary without debug information, or null.
|
|
*
|
|
* @return path to non-debug binary, or -1 w/ errno
|
|
*/
|
|
const char *findcombinary(void) {
|
|
size_t len;
|
|
const char *p;
|
|
if (!findcombinary_.once) {
|
|
findcombinary_.once = true;
|
|
if ((p = (const char *)getauxval(AT_EXECFN)) &&
|
|
(len = strlen(p)) < ARRAYLEN(findcombinary_.buf)) {
|
|
findcombinary_.res = memcpy(findcombinary_.buf, p, len + 1);
|
|
if (len > 4 && memcmp(&findcombinary_.buf[len - 4], ".dbg", 4) == 0) {
|
|
findcombinary_.buf[len - 4] = '\0';
|
|
}
|
|
}
|
|
}
|
|
return findcombinary_.res;
|
|
}
|