diff options
Diffstat (limited to 'sysdeps/powerpc/bits/setjmp.h')
| -rw-r--r-- | sysdeps/powerpc/bits/setjmp.h | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/sysdeps/powerpc/bits/setjmp.h b/sysdeps/powerpc/bits/setjmp.h index 9c3e22abac..3134916a51 100644 --- a/sysdeps/powerpc/bits/setjmp.h +++ b/sysdeps/powerpc/bits/setjmp.h @@ -1,5 +1,4 @@ -/* Copyright (C) 1997,1998,2000,2003,2004,2005,2006 - Free Software Foundation, Inc. +/* Copyright (C) 1997, 1998, 2000, 2003, 2004 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 @@ -32,6 +31,30 @@ #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 @@ -49,4 +72,9 @@ 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 */ |