diff options
author | Christopher Faylor <cgf@redhat.com> | 2000-02-17 19:39:46 +0000 |
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committer | Christopher Faylor <cgf@redhat.com> | 2000-02-17 19:39:46 +0000 |
commit | 6d491d8ad9122891d1a48447e8c49702eb678921 (patch) | |
tree | 45619a131b9f211ceca9fce7a866328344bf00ec /newlib/libc/sys/z8ksim/crt0.c | |
parent | bd592806f45307757c24ec3f75bdefe13abfd51f (diff) | |
download | gdb-cvs/SNAPSHOT.tar.gz |
import newlib-2000-02-17 snapshotcvs/SNAPSHOT
Diffstat (limited to 'newlib/libc/sys/z8ksim/crt0.c')
-rw-r--r-- | newlib/libc/sys/z8ksim/crt0.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/newlib/libc/sys/z8ksim/crt0.c b/newlib/libc/sys/z8ksim/crt0.c new file mode 100644 index 00000000000..f9aad6d95a3 --- /dev/null +++ b/newlib/libc/sys/z8ksim/crt0.c @@ -0,0 +1,58 @@ +extern char _start_bss; +extern char _end_bss; +extern int main(int argc, char **argv, char **environ); +void __main(); + +static void +enter() +{ +#if defined(__Z8002__) + __main(); +#endif + exit(main(0,0,0)); +} +start() +{ + char *p; +#if defined(__Z8002__) + asm("ld r15,#__stack_top"); + asm("ld r10,r15"); +#endif +#if defined(__Z8001__) + asm("ldl rr14,#__stack_top"); + asm("ldl rr10,rr14"); +#endif + + + /* zero bss */ + p = &_start_bss; + while (p < & _end_bss) + { + *p++ = 0; + } + enter(); +} + +#if defined(__Z8002__) +void __do_global_ctors () +{ + typedef void (*pfunc)(); + extern pfunc __ctors[]; + extern pfunc __ctors_end[]; + pfunc *p; + for (p = __ctors_end; p > __ctors; ) + { + (*--p)(); + } +} + +void __main() +{ + static int initialized; + if (! initialized) + { + initialized = 1; + __do_global_ctors (); + } +} +#endif |