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sysv2freebsd error handling

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Jōshin 2023-12-24 14:50:00 -05:00
parent 5588cf643a
commit bc193cac9f
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1 changed files with 15 additions and 2 deletions
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17
tool/build/sysv2freebsd.c
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@ -20,12 +20,25 @@
#include "libc/elf/def.h"
#include "libc/elf/struct/ehdr.h"
#include "libc/runtime/runtime.h"
#include "libc/stdio/stdio.h"
#include "libc/sysv/consts/map.h"
#include "libc/sysv/consts/o.h"
#include "libc/sysv/consts/prot.h"
int main(int argc, char *argv[]) {
open(argv[1], O_RDWR);
Elf64_Ehdr *e = mmap(0, 64, PROT_READ | PROT_WRITE, MAP_SHARED, 3, 0);
int fd;
Elf64_Ehdr *e;
if (argc != 2) {
fprintf(stderr, "usage: %s <file>\n", argv[0]);
exit(1);
} else if ((fd = open(argv[1], O_RDWR)) < 0) {
perror("open");
exit(1);
} else if ((e = mmap(0, 64, PROT_READ | PROT_WRITE, MAP_SHARED, 3, 0)) ==
MAP_FAILED) {
perror("mmap");
exit(2);
}
e->e_ident[EI_OSABI] = ELFOSABI_FREEBSD;
return 0;
}