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Get LIBC_RUNTIME and LIBC_CALLS building on aarch64

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Justine Tunney 2023-05-09 01:56:56 -07:00
parent 7e46645193
commit e5e3cdf447
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1200 changed files with 5341 additions and 3677 deletions
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libc/runtime/cosmo2.c Normal file
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/*-*- 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 2023 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/runtime/runtime.h"
#ifndef __x86_64__
int main(int, char **, char **) __attribute__((__weak__));
#if 0
static inline long sys_set_tid_address(int *t) {
register long res asm("x0");
register long arg asm("x0") = (long)t;
asm volatile("mov\tx8,%1\n\t"
"svc\t0"
: "=r"(res)
: "i"(96), "r"(arg)
: "x8", "memory");
return res;
}
#endif
void cosmo(long *sp) {
int argc;
char **argv, **envp;
unsigned long *auxv;
argc = *sp;
argv = (char **)(sp + 1);
envp = (char **)(sp + 1 + argc + 1);
auxv = (unsigned long *)(sp + 1 + argc + 1);
for (;;) {
if (!*auxv++) {
break;
}
}
__argc = argc;
__argv = argv;
__envp = envp;
__auxv = auxv;
environ = envp;
if (argc) program_invocation_name = argv[0];
exit(main(argc, argv, envp));
}
#endif /* __aarch64__ */