mirror of
https://github.com/jart/cosmopolitan.git
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0d748ad58e
This change fixes Cosmopolitan so it has fewer opinions about compiler warnings. The whole repository had to be cleaned up to be buildable in -Werror -Wall mode. This lets us benefit from things like strict const checking. Some actual bugs might have been caught too.
49 lines
2.7 KiB
C
49 lines
2.7 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/calls.h"
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#include "libc/log/log.h"
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#include "libc/runtime/runtime.h"
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#include "libc/str/str.h"
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static const char *TryMonoRepoPath(const char *var, const char *path) {
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char buf[PATH_MAX];
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if (getenv(var)) return 0;
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if (!isexecutable(path)) return 0;
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if (*path != '/') {
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if (getcwd(buf, sizeof(buf)) <= 0) return 0;
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strlcat(buf, "/", sizeof(buf));
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strlcat(buf, path, sizeof(buf));
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path = buf;
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}
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setenv(var, path, false);
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return getenv(var);
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}
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const char *GetAddr2linePath(void) {
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const char *s = 0;
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#ifdef __x86_64__
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s = TryMonoRepoPath("ADDR2LINE",
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"o/third_party/gcc/bin/x86_64-linux-musl-addr2line");
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#elif defined(__aarch64__)
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s = TryMonoRepoPath("ADDR2LINE",
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"o/third_party/gcc/bin/aarch64-linux-musl-addr2line");
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#endif
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if (!s) s = commandvenv("ADDR2LINE", "addr2line");
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return s;
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}
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