diff options
| author | Joakim Tjernlund <joakim.tjernlund@transmode.se> | 2004-11-17 12:29:10 +0000 |
|---|---|---|
| committer | Joakim Tjernlund <joakim.tjernlund@transmode.se> | 2004-11-17 12:29:10 +0000 |
| commit | 67e184efcf88f28aa3c0a3cc9d132e99993e8046 (patch) | |
| tree | 34e19aa071358f1004c513b25c8cdb3dccc6e3cb | |
| parent | a5ebab17668503a0887dfcace6904d86de8b1d8f (diff) | |
Make __builtin_return_address() return NULL at top of
stack frame. This will make backtracing possible.
| -rw-r--r-- | libc/sysdeps/linux/powerpc/crt0.S | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/libc/sysdeps/linux/powerpc/crt0.S b/libc/sysdeps/linux/powerpc/crt0.S index 4be3e6414..fc77bdc99 100644 --- a/libc/sysdeps/linux/powerpc/crt0.S +++ b/libc/sysdeps/linux/powerpc/crt0.S @@ -50,6 +50,10 @@ _start: /* Save the stack pointer, in case we're statically linked under Linux. */ mr r9,r1 +#if defined L_Scrt0 || defined L_Scrt1 + bl _GLOBAL_OFFSET_TABLE_-4@local + mflr r31 +#endif /* Set up an initial stack frame, and clear the LR. */ clrrwi r1,r1,4 li r0,0 @@ -66,28 +70,24 @@ _start: addi r5,r5,1 rlwinm r5,r5,2,0,29 add r5,r5,r4 -#if defined L_Scrt0 || defined L_Scrt1 - bl _GLOBAL_OFFSET_TABLE_-4@local - mflr r31 -#endif /* Ok, now run uClibc's main() -- shouldn't return */ #if (defined L_crt1 || defined L_Scrt1) && defined __UCLIBC_CTOR_DTOR__ # ifdef L_Scrt1 lwz r6,_init@got(r31) lwz r7,_fini@got(r31) - bl __uClibc_start_main@plt + b __uClibc_start_main@plt # else lis r6,_init@ha # load top 16 bits addi r6,r6,_init@l # load bottom 16 bits lis r7,_fini@ha # load top 16 bits of &msg addi r7,r7,_fini@l # load bottom 16 bits - bl __uClibc_start_main + b __uClibc_start_main # endif #else # ifdef L_Scrt0 - bl __uClibc_main@plt + b __uClibc_main@plt # else - bl __uClibc_main + b __uClibc_main # endif #endif .size _start,.-_start |