cosmopolitan/tool/build/symtab.c
Justine Tunney 5469202ea8
Get monorepo fully building on Windows again
The mkdeps tool was failing, because it used a clever mmap() hack that's
no longer supported. I've also removed tinymalloc.inc from build tooling
because Windows doesn't like the way it uses overcommit memory. Sadly it
means our build tool binaries will be larger. It's less of an issue, now
that we are no longer putting build tool binaries in the git repository.
2024-09-12 05:07:21 -07:00

98 lines
3.6 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 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/calls/calls.h"
#include "libc/errno.h"
#include "libc/runtime/runtime.h"
#include "libc/runtime/symbols.internal.h"
#include "libc/stdio/stdio.h"
#include "libc/sysv/consts/ex.h"
#include "libc/sysv/consts/exit.h"
#include "libc/sysv/consts/o.h"
#include "third_party/getopt/getopt.internal.h"
/**
* @fileoverview elf to symbol table file dump tool
*/
void PrintUsage(FILE *f) {
fprintf(f, "%s%s%s\n", "usage: ", program_invocation_name,
" [-?h] -o PATH COMDBG");
}
int main(int argc, char *argv[]) {
int fd, opt;
const char *outpath;
struct SymbolTable *tab;
outpath = 0;
while ((opt = getopt(argc, argv, "?ho:")) != -1) {
switch (opt) {
case 'o':
outpath = optarg;
break;
case '?':
case 'h':
PrintUsage(stdout);
return 0;
default:
PrintUsage(stderr);
return EX_USAGE;
}
}
if (!outpath) {
fprintf(stderr, "error: need output path\n");
PrintUsage(stderr);
return 1;
}
if (optind + 1 != argc) {
fprintf(stderr, "error: need exactly one input path\n");
PrintUsage(stderr);
return 2;
}
if (!(tab = OpenSymbolTable(argv[optind]))) {
fprintf(stderr, "error: %s(%`'s) failed %m\n", "OpenSymbolTable",
argv[optind]);
return 3;
}
tab->names = 0;
tab->name_base = 0;
if ((fd = open(outpath, O_WRONLY | O_CREAT | O_TRUNC, 0644)) == -1) {
fprintf(stderr, "error: %s(%`'s) failed %m\n", "open", outpath);
return 4;
}
if (write(fd, (const char *)tab, tab->size) != tab->size) {
fprintf(stderr, "error: %s(%`'s) failed %m\n", "write", outpath);
return 5;
}
if (close(fd) == -1) {
fprintf(stderr, "error: %s(%`'s) failed %m\n", "close", outpath);
return 6;
}
CloseSymbolTable(&tab);
return 0;
}