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authorAlexandre Oliva <aoliva@redhat.com>2003-03-17 15:47:13 +0000
committerAlexandre Oliva <aoliva@redhat.com>2003-03-17 15:47:13 +0000
commit4947b4b20f49324647a7cbcd2596b1f5b4639748 (patch)
tree0447ee1cce55994f03a92ba7413268c51be85d11 /sysdeps/mips/elf
parentde4471dd559ab27a8927135fb5a475eaa613c437 (diff)
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* sysdeps/mips/bits/wordsize.h: New file, appropriate for all 3 ABIs. * sysdeps/mips/mips64/gmp-mparam.h: New file. Define BITS_PER_LONGINT to __WORDSIZE, to match all 3 ABIs. * sysdeps/mips/setjmp_aux.c (STRINGXP, REGS, PTRS): New macros. (__sigsetjmp_aux): Use them. Adjust for all 3 ABIs. * sysdeps/mips/elf/start.S: Adjust for all 3 ABIs. * sysdeps/unix/mips/brk.S: Likewise. * sysdeps/unix/mips/sysdep.S: Likewise. * sysdeps/unix/sysv/linux/mips/clone.S: Likewise. * sysdeps/mips/bits/setjmp.h (__jmp_buf): Likewise. * sysdeps/mips/sys/ucontext.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/profcs.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/ucontext.h: Likewise. * sysdeps/unix/sysv/linux/mips/kernel_stat.h: Likewise. * sysdeps/mips/mips64/bsd-_setjmp.S: Likewise. * sysdeps/mips/mips64/bsd-setjmp.S: Likewise. * sysdeps/mips/mips64/setjmp.S: Likewise. * sysdeps/mips/mips64/bits/setjmp.h: Deleted, obsolete. * sysdeps/mips/mips64/soft-fp/sfp-machine.h: Use long long for 64-bit types.
2003-03-17 Alexandre Oliva <aoliva@redhat.com> * sysdeps/mips/bits/wordsize.h: New file, appropriate for all 3 ABIs. * sysdeps/mips/mips64/gmp-mparam.h: New file. Define BITS_PER_LONGINT to __WORDSIZE, to match all 3 ABIs. * sysdeps/mips/setjmp_aux.c (STRINGXP, REGS, PTRS): New macros. (__sigsetjmp_aux): Use them. Adjust for all 3 ABIs. * sysdeps/mips/elf/start.S: Adjust for all 3 ABIs. * sysdeps/unix/mips/brk.S: Likewise. * sysdeps/unix/mips/sysdep.S: Likewise. * sysdeps/unix/sysv/linux/mips/clone.S: Likewise. * sysdeps/mips/bits/setjmp.h (__jmp_buf): Likewise. * sysdeps/mips/sys/ucontext.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/profcs.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/ucontext.h: Likewise. * sysdeps/unix/sysv/linux/mips/kernel_stat.h: Likewise. * sysdeps/mips/mips64/bsd-_setjmp.S: Likewise. * sysdeps/mips/mips64/bsd-setjmp.S: Likewise. * sysdeps/mips/mips64/setjmp.S: Likewise. * sysdeps/mips/mips64/bits/setjmp.h: Deleted, obsolete. * sysdeps/mips/mips64/soft-fp/sfp-machine.h: Use long long for 64-bit types.
Diffstat (limited to 'sysdeps/mips/elf')
-rw-r--r--sysdeps/mips/elf/start.S59
1 files changed, 30 insertions, 29 deletions
diff --git a/sysdeps/mips/elf/start.S b/sysdeps/mips/elf/start.S
index e85e9f535e..7567423f00 100644
--- a/sysdeps/mips/elf/start.S
+++ b/sysdeps/mips/elf/start.S
@@ -1,5 +1,6 @@
/* Startup code compliant to the ELF Mips ABI.
- Copyright (C) 1995, 1997, 2000, 2001, 2002 Free Software Foundation, Inc.
+ Copyright (C) 1995, 1997, 2000, 2001, 2002, 2003
+ 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
@@ -19,6 +20,7 @@
#define __ASSEMBLY__ 1
#include <entry.h>
+#include <sys/asm.h>
#ifndef ENTRY_POINT
#error ENTRY_POINT needs to be defined for start.S on MIPS/ELF.
@@ -52,42 +54,41 @@
char **argv, void (*init) (void), void (*fini) (void),
void (*rtld_fini) (void), void *stack_end)
*/
-#ifdef __PIC__
-/* A macro to (re)initialize gp. We can get the run time address of 0f in
- ra ($31) by blezal instruction. In this early phase, we can't save gp
- in stack and .cprestore doesn't work properly. So we set gp by using
- this macro. */
-#define SET_GP \
- .set noreorder; \
- bltzal $0,0f; \
- nop; \
-0: .cpload $31; \
- .set reorder;
-#endif
-
+
.text
.globl ENTRY_POINT
.type ENTRY_POINT,@function
ENTRY_POINT:
#ifdef __PIC__
- SET_GP
+ SETUP_GPX($0)
+ SETUP_GPX64($25,$0)
#else
- la $28, _gp /* Setup GP correctly if we're non-PIC. */
-#endif
+ PTR_LA $28, _gp /* Setup GP correctly if we're non-PIC. */
move $31, $0
+#endif
- la $4, main /* main */
- lw $5, 0($29) /* argc */
- addu $6, $29, 4 /* argv */
- /* Allocate space on the stack for seven arguments and make sure
- the stack is aligned to double words (8 bytes). */
- and $29, 0xfffffff8
- subu $29, 32
- la $7, __libc_csu_init /* init */
- la $8, __libc_csu_fini
- sw $8, 16($29) /* fini */
- sw $2, 20($29) /* rtld_fini */
- sw $29, 24($29) /* stack_end */
+ PTR_LA $4, main /* main */
+ PTR_L $5, 0($29) /* argc */
+ PTR_ADDIU $6, $29, PTRSIZE /* argv */
+
+ /* Allocate space on the stack for seven arguments (o32 only)
+ and make sure the stack is aligned to double words (8 bytes)
+ on o32 and quad words (16 bytes) on n32 and n64. */
+
+ and $29, -2 * SZREG
+#if _MIPS_SIM == _MIPS_SIM_ABI32
+ PTR_SUBIU $29, 32
+#endif
+ PTR_LA $7, __libc_csu_init /* init */
+ PTR_LA $8, __libc_csu_fini
+#if _MIPS_SIM == _MIPS_SIM_ABI32
+ PTR_S $8, 16($29) /* fini */
+ PTR_S $2, 20($29) /* rtld_fini */
+ PTR_S $29, 24($29) /* stack_end */
+#else
+ move $9, $2 /* rtld_fini */
+ move $10, $29 /* stack_end */
+#endif
jal __libc_start_main
hlt: b hlt /* Crash if somehow it does return. */