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Introduce native support for MacOS ARM64

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There's a new program named ape/ape-m1.c which will be used to build an
embeddable binary that can load ape and elf executables. The support is
mostly working so far, but still chasing down ABI issues.
This commit is contained in:
Justine Tunney 2023-05-18 19:05:08 -07:00
parent b852650c08
commit 1422e96b4e
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GPG key ID: BE714B4575D6E328
757 changed files with 2988 additions and 1321 deletions
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38
libc/runtime/cosmo2.c
View file

@ -18,13 +18,13 @@
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/intrin/kprintf.h"
#include "libc/intrin/strace.internal.h"
#include "libc/macros.internal.h"
#include "libc/nexgen32e/rdtsc.h"
#include "libc/runtime/internal.h"
#include "libc/runtime/memtrack.internal.h"
#include "libc/runtime/runtime.h"
#include "libc/runtime/syslib.internal.h"
#include "libc/thread/thread.h"
#include "libc/thread/tls.h"
#ifndef __x86_64__
@ -33,15 +33,27 @@ int main(int, char **, char **) __attribute__((__weak__));
typedef int init_f(int argc, char **argv, char **envp, unsigned long *auxv);
extern long syscon_start[];
extern long syscon_end[];
extern long syscon_linux[];
extern long syscon_xnu[];
extern long syscon_freebsd[];
extern long syscon_openbsd[];
extern long syscon_netbsd[];
extern long syscon_windows[];
extern init_f __strace_init;
extern init_f *__preinit_array_start[] __attribute__((__weak__));
extern init_f *__preinit_array_end[] __attribute__((__weak__));
extern init_f *__init_array_start[] __attribute__((__weak__));
extern init_f *__init_array_end[] __attribute__((__weak__));
extern pthread_mutex_t __mmi_lock_obj;
extern int hostos asm("__hostos");
textstartup void cosmo(long *sp) {
textstartup void cosmo(long *sp, struct Syslib *m1) {
int argc;
init_f **fp;
uintptr_t *pp;
long *mp, *magnums;
char **argv, **envp;
unsigned long *auxv;
@ -56,6 +68,20 @@ textstartup void cosmo(long *sp) {
auxv = (unsigned long *)(sp + 1 + argc + 1);
while (*auxv++) donothing;
// detect apple m1 environment
if ((__syslib = m1)) {
hostos = _HOSTXNU;
magnums = syscon_xnu;
} else {
hostos = _HOSTLINUX;
magnums = syscon_linux;
}
// setup system magic numbers
for (mp = syscon_start; mp < syscon_end; ++mp) {
*mp = *magnums++;
}
// needed by kisdangerous()
__oldstack = (intptr_t)sp;
__pid = sys_getpid().ax;
@ -65,11 +91,6 @@ textstartup void cosmo(long *sp) {
_mmi.p = _mmi.s;
__mmi_lock_obj._type = PTHREAD_MUTEX_RECURSIVE;
#ifdef SYSDEBUG
// initialize --strace functionality
argc = __strace_init(argc, argv, envp, auxv);
#endif
#if 0
#if IsAsan()
__asan_init(argc, argv, envp, auxv);
@ -89,6 +110,9 @@ textstartup void cosmo(long *sp) {
// run initialization callbacks
_init();
__enable_tls();
#ifdef SYSDEBUG
argc = __strace_init(argc, argv, envp, auxv);
#endif
for (fp = __init_array_end; fp-- > __init_array_start;) {
(*fp)(argc, argv, envp, auxv);
}