mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-07 15:03:34 +00:00
We're now scrubbing environment variables in compile.com since gnu make was not behaving as expected. It also appears there was a regression in recent revisions that caused ASAN to be turned off for most binaries in dbg mode, which has now been fixed. Cosmopolitan is fully ASAN hardened down to the lowest level libraries and it doesn't need any interceptors
68 lines
3.2 KiB
C
68 lines
3.2 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 │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/bits/bits.h"
|
|
#include "libc/bits/safemacros.h"
|
|
#include "libc/calls/calls.h"
|
|
#include "libc/errno.h"
|
|
#include "libc/macros.h"
|
|
#include "libc/runtime/runtime.h"
|
|
#include "libc/runtime/symbols.internal.h"
|
|
#include "libc/str/str.h"
|
|
#include "libc/sysv/consts/auxv.h"
|
|
|
|
/**
|
|
* Returns path of binary with the debug information, or null.
|
|
*
|
|
* @return path to debug binary, or -1 w/ errno
|
|
*/
|
|
const char *FindDebugBinary(void) {
|
|
unsigned i, len;
|
|
char buf[2][PATH_MAX];
|
|
static char res[PATH_MAX];
|
|
const char *bins[4], *pwd, *comdbg;
|
|
if (res[0]) return res;
|
|
if ((comdbg = emptytonull(getenv("COMDBG")))) return comdbg;
|
|
if (res[0]) return res;
|
|
bins[0] = program_invocation_name;
|
|
bins[1] = (const char *)getauxval(AT_EXECFN);
|
|
pwd = emptytonull(getenv("PWD"));
|
|
for (i = 0; i < 2; ++i) {
|
|
if (pwd && bins[i] && bins[i][0] != '/' && bins[i][0] != '\\' &&
|
|
strlen(pwd) + 1 + strlen(bins[i]) + 1 <= ARRAYLEN(buf[0])) {
|
|
strcpy(buf[i], pwd);
|
|
strcat(buf[i], "/");
|
|
strcat(buf[i], bins[i]);
|
|
bins[i + 2] = buf[i];
|
|
}
|
|
}
|
|
for (i = 0; i < 4; ++i) {
|
|
if (!bins[i]) continue;
|
|
len = strlen(bins[i]);
|
|
memcpy(res, bins[i], len + 1);
|
|
if (!endswith(res, ".dbg") && len + 3 + 1 <= ARRAYLEN(res)) {
|
|
strcat(res, ".dbg");
|
|
}
|
|
if (fileexists(res)) {
|
|
return res;
|
|
}
|
|
}
|
|
res[0] = '\0';
|
|
errno = ENOENT;
|
|
return NULL;
|
|
}
|