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Improve aarch64 native support some more

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This change introduces partial support for automating remote testing of
aarch64 binaries on Raspberry Pi and Apple Silicon.
This commit is contained in:
Justine Tunney 2023-06-04 08:19:45 -07:00
parent fc34ba2596
commit 4aa1d09b9e
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
20 changed files with 185 additions and 82 deletions
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31
libc/runtime/cosmo2.c
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@ -19,6 +19,7 @@
#include "libc/calls/calls.h"
#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"
@ -44,12 +45,12 @@ 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 char syscon_linux[];
extern char syscon_xnu[];
extern char syscon_freebsd[];
extern char syscon_openbsd[];
extern char syscon_netbsd[];
extern char syscon_windows[];
extern init_f __strace_init;
extern init_f *__preinit_array_start[] __attribute__((__weak__));
extern init_f *__preinit_array_end[] __attribute__((__weak__));
@ -61,13 +62,24 @@ extern char ape_stack_prot[] __attribute__((__weak__));
extern pthread_mutex_t __mmi_lock_obj;
extern int hostos asm("__hostos");
static const char *DecodeMagnum(const char *p, long *r) {
int k = 0;
unsigned long c, x = 0;
do {
c = *p++;
x |= (c & 127) << k;
k += 7;
} while (c & 128);
return *r = x, p;
}
textstartup void cosmo(long *sp, struct Syslib *m1) {
int argc;
long *mp;
init_f **fp;
uintptr_t *pp;
long *mp, *magnums;
char **argv, **envp;
unsigned long *auxv;
char **argv, **envp, *magnums;
// get startup timestamp as early as possible
// its used by --strace and also kprintf() %T
@ -93,7 +105,7 @@ textstartup void cosmo(long *sp, struct Syslib *m1) {
// setup system magic numbers
for (mp = syscon_start; mp < syscon_end; ++mp) {
*mp = *magnums++;
magnums = DecodeMagnum(magnums, mp);
}
// check system call abi compatibility
@ -131,6 +143,7 @@ textstartup void cosmo(long *sp, struct Syslib *m1) {
#endif
#endif
// initialize file system
InitializeFileDescriptors();
// set helpful globals