diff options
Diffstat (limited to 'ports/sysdeps/hppa/bits/setjmp.h')
| -rw-r--r-- | ports/sysdeps/hppa/bits/setjmp.h | 39 |
1 files changed, 32 insertions, 7 deletions
diff --git a/ports/sysdeps/hppa/bits/setjmp.h b/ports/sysdeps/hppa/bits/setjmp.h index 19a0cfe621..7283cc16f3 100644 --- a/ports/sysdeps/hppa/bits/setjmp.h +++ b/ports/sysdeps/hppa/bits/setjmp.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2000, 2005, 2006 Free Software Foundation, Inc. +/* Copyright (C) 2000-2012 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 @@ -23,13 +23,38 @@ # error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead." #endif -/* The previous bits/setjmp.h had __jmp_buf defined as a structure. - We use an array of 'double' instead, to make writing the assembler - easier, and to ensure proper alignment. Naturally, user code should - not depend on either representation. */ - #ifndef _ASM -typedef double __jmp_buf[21]; +/* The entire jump buffer must be 168 bytes long and laid + out in exactly as follows for ABI consistency. + * 20 x 32-bit gprs, with 8-bytes of padding, arranged so: + - r3 (callee saves) + - 4 bytes of padding. + - r4-r18 (callee saves) + - r19 (PIC register) + - r27 (static link register) + - r30 (stcack pointer) + - r2 (return pointer) + - 4 bytes of padding. + * 10 x 64-bit fprs in this order: + - fr12-fr21 (callee saves) + Note: We have 8 bytes of free space for future uses. */ +typedef union + { + struct __jmp_buf_internal_tag + { + int __r3; + int __pad0; + int __r4_r18[15]; + int __r19; + int __r27; + int __sp; + int __rp; + int __pad1; + double __fr12_fr21[10]; + } __jmp_buf; + /* Legacy definition. Ensures double alignment for fpsrs. */ + double __align[21]; + } __jmp_buf[1]; #endif #endif /* bits/setjmp.h */ |