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| author | Dale S. Rahn <rahnds@cvs.openbsd.org> | 1998-07-05 00:00:01 +0000 |
|---|---|---|
| committer | Dale S. Rahn <rahnds@cvs.openbsd.org> | 1998-07-05 00:00:01 +0000 |
| commit | 49d15ae928c1c02925704490e1ac7bc70825079e (patch) | |
| tree | 408fa911cb56446c2e1e7c5f1fc54b2e467cda4e | |
| parent | 42f6909fcf313bc7d56469429281e8ad4bfc65a5 (diff) | |
Changes to support profiling on the powerpc port, startup code.
| -rw-r--r-- | lib/csu/powerpc/crt0.s | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/lib/csu/powerpc/crt0.s b/lib/csu/powerpc/crt0.s index 964a05f3861..1c41855bd0b 100644 --- a/lib/csu/powerpc/crt0.s +++ b/lib/csu/powerpc/crt0.s @@ -1,6 +1,6 @@ - .data 1 + .section ".data" .comm environ, 4 .globl __progname __progname: @@ -9,10 +9,11 @@ L1: .long 0 # null string plus padding - .text + .section ".text" .globl start start: .globl _start + .type _start,@function _start: # squirrel away the arguments for main @@ -21,7 +22,14 @@ _start: mr 15, 5 mr 16, 6 + # make certain space exists on the stack for the + # 'stw X, 4(1)' at the beginning of functions. + subi 1, 1, 16 + li 0, 0 + stw 0, 0(1) + # determine the program name (__progname) + mr 4, 14 lwz 28, 0(4) # r28 = argv[0] (program name) cmpwi 28, 0 # argv[0] == NULL? beq call_main # yep forget setup of progname @@ -38,10 +46,20 @@ no_slash_found: stw 28, __progname@L(31) lis 26, environ@HA - stw 5, environ@L(26) + stw 15, environ@L(26) -call_main: .globl __init +call_main: +#ifdef MCRT0 + addis 3, 3, _mcleanup@ha + addi 3, 3, _mcleanup@l + bl atexit + addis 3, 3, eprol@ha + addi 3, 3, eprol@l + addis 4, 4, _etext@ha + addi 4, 4, _etext@l + bl monstartup +#endif bl __init # recover those saved registers mr 3, 13 @@ -56,9 +74,13 @@ call_main: mr 3, 13 bl exit +eprol: +#if 0 .globl __main __main: +#endif .globl __eabi + .type __eabi,@function __eabi: blr |