diff options
Diffstat (limited to 'lib/csu/mips64')
| -rw-r--r-- | lib/csu/mips64/md_init.h | 48 |
1 files changed, 19 insertions, 29 deletions
diff --git a/lib/csu/mips64/md_init.h b/lib/csu/mips64/md_init.h index 464c4bafef7..66c7c7fa7dc 100644 --- a/lib/csu/mips64/md_init.h +++ b/lib/csu/mips64/md_init.h @@ -1,4 +1,4 @@ -/* $OpenBSD: md_init.h,v 1.4 2013/12/04 00:20:31 deraadt Exp $ */ +/* $OpenBSD: md_init.h,v 1.5 2013/12/23 18:16:39 kettenis Exp $ */ /*- * Copyright (c) 2001 Ross Harvey @@ -87,6 +87,23 @@ " jal " #func " \n" \ ".previous") +#define MD_CRT0_START \ + __asm( \ + ".text \n" \ + " .align 3 \n" \ + " .globl __start \n" \ + " .ent __start \n" \ + " .type __start, @function \n" \ + "__start: \n" \ + " lui $gp, %hi(%neg(%gp_rel(__start))) \n" \ + " addiu $gp, $gp, %lo(%neg(%gp_rel(__start))) \n" \ + " daddu $gp, $gp, $t9 \n" \ + " move $a0, $sp \n" \ + " move $a1, $v0 \n" \ + " dla $t9, ___start \n" \ + " jr $t9 \n" \ + " .end __start \n" \ + " .previous") struct kframe { long kargc; @@ -95,38 +112,11 @@ struct kframe { char kenvstr[1]; /* size varies */ }; -#define MD_START __start -#define MD_START_ARGS void - -/* - * XXX no cleanup() callback passed to __start yet. Need to pull - * it from v0 in ASM? - */ -#define MD_NO_CLEANUP - - -/* - * Do GP register setup and find the kframe struct. Differs depending - * on shared lib stuff or not. - * XXX just above the saved frame pointer? - * kfp = (struct kframe *) (¶m-1); - */ -#if defined(_NO_ABICALLS) -#define SETUP_KFP(kfp) \ - asm(" dla $28,_gp \n" \ - " daddiu %0,$29,32" : "=r" (kfp)) -#else -#define SETUP_KFP(kfp) \ - asm(" daddiu %0,$29,48" : "=r" (kfp)) -#endif - - +#define MD_START_ARGS struct kframe *kfp, void (*cleanup)(void) #define MD_START_SETUP \ - struct kframe *kfp; \ char **argv, **envp; \ int argc; \ \ - SETUP_KFP(kfp); \ argc = kfp->kargc; \ argv = &kfp->kargv[0]; \ environ = envp = argv + argc + 1; |