diff options
Diffstat (limited to 'libc/sysdeps/linux/powerpc/bits/setjmp.h')
| -rw-r--r-- | libc/sysdeps/linux/powerpc/bits/setjmp.h | 40 |
1 files changed, 5 insertions, 35 deletions
diff --git a/libc/sysdeps/linux/powerpc/bits/setjmp.h b/libc/sysdeps/linux/powerpc/bits/setjmp.h index dad90c74c..96ea8f3ba 100644 --- a/libc/sysdeps/linux/powerpc/bits/setjmp.h +++ b/libc/sysdeps/linux/powerpc/bits/setjmp.h @@ -1,4 +1,5 @@ -/* Copyright (C) 1997, 1998, 2000, 2003, 2004 Free Software Foundation, Inc. +/* Copyright (C) 1997,1998,2000,2003,2004,2005,2006 + Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -31,30 +32,6 @@ #include <bits/wordsize.h> -#if defined __USE_MISC || defined _ASM -# define JB_GPR1 0 /* Also known as the stack pointer */ -# define JB_GPR2 1 -# define JB_LR 2 /* The address we will return to */ -# if __WORDSIZE == 64 -# define JB_GPRS 3 /* GPRs 14 through 31 are saved, 18*2 words total. */ -# define JB_CR 21 /* Condition code registers with the VRSAVE at */ - /* offset 172 (low half of the double word. */ -# define JB_FPRS 22 /* FPRs 14 through 31 are saved, 18*2 words total. */ -# define JB_SIZE (64 * 8) /* As per PPC64-VMX ABI. */ -# define JB_VRSAVE 21 /* VRSAVE shares a double word with the CR at offset */ - /* 168 (high half of the double word). */ -# define JB_VRS 40 /* VRs 20 through 31 are saved, 12*4 words total. */ -# else -# define JB_GPRS 3 /* GPRs 14 through 31 are saved, 18 in total. */ -# define JB_CR 21 /* Condition code registers. */ -# define JB_FPRS 22 /* FPRs 14 through 31 are saved, 18*2 words total. */ -# define JB_SIZE ((64 + (12 * 4)) * 4) -# define JB_VRSAVE 62 -# define JB_VRS 64 -# endif -#endif - - /* The current powerpc 32-bit Altivec ABI specifies for SVR4 ABI and EABI the vrsave must be at byte 248 & v20 at byte 256. So we must pad this correctly on 32 bit. It also insists that vecregs are only gauranteed @@ -62,19 +39,12 @@ We have to version the code because members like int __mask_was_saved in the jmp_buf will move as jmp_buf is now larger than 248 bytes. We cannot keep the altivec jmp_buf backward compatible with the jmp_buf. */ -#ifndef _ASM -# if __WORDSIZE == 64 +#if __WORDSIZE == 64 typedef long int __jmp_buf[64] __attribute__ ((__aligned__ (16))); -# else +#else /* The alignment is not essential, i.e.the buffer can be copied to a 4 byte aligned buffer as per the ABI it is just added for performance reasons. */ typedef long int __jmp_buf[64 + (12 * 4)] __attribute__ ((__aligned__ (16))); -# endif #endif -/* Test if longjmp to JMPBUF would unwind the frame - containing a local variable at ADDRESS. */ -#define _JMPBUF_UNWINDS(jmpbuf, address) \ - ((void *) (address) < (void *) (jmpbuf)[JB_GPR1]) - -#endif /* bits/setjmp.h */ +#endif /* bits/setjmp.h */ |