| 1 |
282 |
jeremybenn |
/* Definitions for PA_RISC with ELF-32 format
|
| 2 |
|
|
Copyright (C) 2000, 2002, 2004, 2006, 2007 Free Software Foundation, Inc.
|
| 3 |
|
|
|
| 4 |
|
|
This file is part of GCC.
|
| 5 |
|
|
|
| 6 |
|
|
GCC is free software; you can redistribute it and/or modify
|
| 7 |
|
|
it under the terms of the GNU General Public License as published by
|
| 8 |
|
|
the Free Software Foundation; either version 3, or (at your option)
|
| 9 |
|
|
any later version.
|
| 10 |
|
|
|
| 11 |
|
|
GCC is distributed in the hope that it will be useful,
|
| 12 |
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 13 |
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 14 |
|
|
GNU General Public License for more details.
|
| 15 |
|
|
|
| 16 |
|
|
You should have received a copy of the GNU General Public License
|
| 17 |
|
|
along with GCC; see the file COPYING3. If not see
|
| 18 |
|
|
<http://www.gnu.org/licenses/>. */
|
| 19 |
|
|
|
| 20 |
|
|
/* Turn off various SOM crap we don't want. */
|
| 21 |
|
|
#undef TARGET_ELF32
|
| 22 |
|
|
#define TARGET_ELF32 1
|
| 23 |
|
|
|
| 24 |
|
|
/* The libcall __canonicalize_funcptr_for_compare is referenced in
|
| 25 |
|
|
crtend.o and the reference isn't resolved in objects that don't
|
| 26 |
|
|
compare function pointers. Thus, we need to play games to provide
|
| 27 |
|
|
a reference in crtbegin.o. The rest of the define is the same
|
| 28 |
|
|
as that in crtstuff.c */
|
| 29 |
|
|
#define CTOR_LIST_BEGIN \
|
| 30 |
|
|
asm (".type __canonicalize_funcptr_for_compare,@function\n" \
|
| 31 |
|
|
" .text\n" \
|
| 32 |
|
|
" .word __canonicalize_funcptr_for_compare-$PIC_pcrel$0"); \
|
| 33 |
|
|
STATIC func_ptr __CTOR_LIST__[1] \
|
| 34 |
|
|
__attribute__ ((__unused__, section(".ctors"), \
|
| 35 |
|
|
aligned(sizeof(func_ptr)))) \
|
| 36 |
|
|
= { (func_ptr) (-1) }
|
| 37 |
|
|
|
| 38 |
|
|
/* This is a PIC version of CRT_CALL_STATIC_FUNCTION. The PIC
|
| 39 |
|
|
register has to be saved before the call and restored after
|
| 40 |
|
|
the call. We assume that register %r4 is available for this
|
| 41 |
|
|
purpose. The hack prevents GCC from deleting the restore. */
|
| 42 |
|
|
#ifdef CRTSTUFFS_O
|
| 43 |
|
|
#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
|
| 44 |
|
|
static void __attribute__((__used__)) \
|
| 45 |
|
|
call_ ## FUNC (void) \
|
| 46 |
|
|
{ \
|
| 47 |
|
|
asm (SECTION_OP); \
|
| 48 |
|
|
asm volatile ("bl " #FUNC ",%%r2\n\t" \
|
| 49 |
|
|
"copy %%r19,%%r4\n\t" \
|
| 50 |
|
|
"copy %%r4,%%r19\n" \
|
| 51 |
|
|
: \
|
| 52 |
|
|
: \
|
| 53 |
|
|
: "r1", "r2", "r4", "r20", "r21", \
|
| 54 |
|
|
"r22", "r23", "r24", "r25", "r26", \
|
| 55 |
|
|
"r27", "r28", "r29", "r31"); \
|
| 56 |
|
|
asm (TEXT_SECTION_ASM_OP); \
|
| 57 |
|
|
}
|
| 58 |
|
|
#endif
|
| 59 |
|
|
|
| 60 |
|
|
#define MD_UNWIND_SUPPORT "config/pa/linux-unwind.h"
|
