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This commit is contained in:
Roland McGrath 1993-08-26 23:31:15 +00:00
parent ebb0156a44
commit d14810a630
5 changed files with 85 additions and 9 deletions
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9
sysdeps/mips/__longjmp.c
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@ -1,5 +1,5 @@
/* Copyright (C) 1992 Free Software Foundation, Inc.
Contributed by Brendan Kehoe (brendan@cs.widener.edu).
Contributed by Brendan Kehoe (brendan@zen.org).
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
@ -22,6 +22,10 @@ Cambridge, MA 02139, USA. */
#undef __longjmp
#ifndef __GNUC__
#error This file uses GNU C extensions; you must compile with GCC.
#endif
__NORETURN
void
DEFUN(__longjmp, (env, val_arg), CONST __jmp_buf env AND int val_arg)
@ -66,7 +70,7 @@ DEFUN(__longjmp, (env, val_arg), CONST __jmp_buf env AND int val_arg)
/* Get the PC. */
asm volatile ("lw $31, %0" : : "m" (env[0].__pc));
/* Give setjmp() 1 if given a 0, or what they gave us if non-zero. */
/* Give setjmp 1 if given a 0, or what they gave us if non-zero. */
if (val == 0)
asm volatile ("li $2, 1");
else
@ -74,6 +78,5 @@ DEFUN(__longjmp, (env, val_arg), CONST __jmp_buf env AND int val_arg)
asm volatile ("j $31");
/* Follow the trend.. */
abort ();
}

4
sysdeps/mips/jmp_buf.h
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@ -1,6 +1,6 @@
/* Define the machine-dependent type `jmp_buf'. Mips version.
Copyright (C) 1992, 1993 Free Software Foundation, Inc.
Contributed by Brendan Kehoe (brendan@cygnus.com).
Contributed by Brendan Kehoe (brendan@zen.org).
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
@ -41,5 +41,7 @@ typedef struct
double __fpregs[6];
} __jmp_buf[1];
#ifdef __USE_MISC
/* Offset to the program counter in `jmp_buf'. */
#define JB_PC 0
#endif

6
sysdeps/mips/setjmp_aux.c
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@ -1,5 +1,5 @@
/* Copyright (C) 1992 Free Software Foundation, Inc.
Contributed by Brendan Kehoe (brendan@cs.widener.edu).
Contributed by Brendan Kehoe (brendan@zen.org).
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
@ -19,6 +19,10 @@ Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <setjmp.h>
#ifndef __GNUC__
#error This file uses GNU C extensions; you must compile with GCC.
#endif
/* This function is only called via the assembly language routine
__setjmp, which arranges to pass in the stack pointer and the frame
pointer. We do things this way because it's difficult to reliably

8
sysdeps/unix/bsd/ultrix4/mips/sigcontext.h
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@ -1,5 +1,5 @@
/* Copyright (C) 1992 Free Software Foundation, Inc.
Contributed by Brendan Kehoe (brendan@cs.widener.edu).
Contributed by Brendan Kehoe (brendan@zen.org).
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
@ -27,7 +27,7 @@ struct sigcontext
sigset_t sc_mask;
/* Program counter when the signal hit. */
PTR sc_pc;
__ptr_t sc_pc;
/* Registers 0 through 31. */
int sc_regs[32];
@ -52,9 +52,9 @@ struct sigcontext
int sc_cause;
/* CPU bad virtual address. */
PTR sc_badvaddr;
__ptr_t sc_badvaddr;
/* CPU board bad physical address. */
PTR sc_badpaddr;
__ptr_t sc_badpaddr;
};

67
sysdeps/unix/mips/sysdep.h Normal file
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@ -0,0 +1,67 @@
/* Copyright (C) 1992 Free Software Foundation, Inc.
Contributed by Brendan Kehoe (brendan@zen.org).
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <sysdeps/unix/sysdep.h>
#include <regdef.h>
#ifdef __STDC__
#define ENTRY(name) \
.globl name; \
.align 2; \
name##:
#else
#define ENTRY(name) \
.globl name; \
.align 2; \
name/**/:
#endif
/* Note that while it's better structurally, going back to call syscall_error
can make things confusing if you're debugging---it looks like it's jumping
backwards into the previous fn. */
#ifdef __STDC__
#define PSEUDO(name, syscall_name, args) \
.set noreorder; \
.align 2; \
99: j syscall_error; \
nop; \
ENTRY(name) \
li v0, SYS_##syscall_name; \
syscall; \
bne a3, zero, 99b; \
nop; \
syse1:
#else
#define PSEUDO(name, syscall_name, args) \
.set noreorder; \
.align 2; \
99: j syscall_error; \
nop; \
ENTRY(name) \
li v0, SYS_/**/syscall_name; \
syscall; \
bne a3, zero, 99b; \
nop; \
syse1:
#endif
#define ret j ra ; nop
#define r0 v0
#define r1 v1
/* The mips move insn is d,s. */
#define MOVE(x,y) move y , x