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2009-04-01 David S. Miller <davem@davemloft.net>

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* normal/sparc64/setjmp.S: Fix setjmp implementation.
	* include/grub/sparc64/setjmp.h (grub_jmp_buf): Update.
	(grub_setjmp): Mark with 'returns_twice' attribute.
	* include/grub/i386/setjmp.h (grub_setjmp): Likewise
	* include/grub/powerpc/setjmp.h (grub_setjmp): Likewise.
	* include/grub/x86_64/setjmp.h (grub_setjmp): Likewise.
This commit is contained in:
robertmh 2009-04-01 13:01:05 +00:00
parent 9c3dd8544c
commit 5270cec8d7
6 changed files with 36 additions and 16 deletions
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9
ChangeLog
View file

@ -1,3 +1,12 @@
2009-04-01 David S. Miller <davem@davemloft.net>
* normal/sparc64/setjmp.S: Fix setjmp implementation.
* include/grub/sparc64/setjmp.h (grub_jmp_buf): Update.
(grub_setjmp): Mark with 'returns_twice' attribute.
* include/grub/i386/setjmp.h (grub_setjmp): Likewise
* include/grub/powerpc/setjmp.h (grub_setjmp): Likewise.
* include/grub/x86_64/setjmp.h (grub_setjmp): Likewise.
2009-04-01 Robert Millan <rmh@aybabtu.com>
Reapply fix from 2008-07-28 which was accidentally reverted; also

5
include/grub/i386/setjmp.h
View file

@ -1,6 +1,6 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2003,2006,2007 Free Software Foundation, Inc.
* Copyright (C) 2003,2006,2007,2009 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -21,7 +21,8 @@
typedef unsigned long grub_jmp_buf[6];
int grub_setjmp (grub_jmp_buf env) __attribute__ ((cdecl, regparm (3)));
int grub_setjmp (grub_jmp_buf env) __attribute__ ((returns_twice, cdecl,
regparm (3)));
void grub_longjmp (grub_jmp_buf env, int val) __attribute__ ((noreturn, cdecl,
regparm (3)));

4
include/grub/powerpc/setjmp.h
View file

@ -1,6 +1,6 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002,2004,2006,2007 Free Software Foundation, Inc.
* Copyright (C) 2002,2004,2006,2007,2009 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -21,7 +21,7 @@
typedef unsigned long grub_jmp_buf[20];
int grub_setjmp (grub_jmp_buf env);
int grub_setjmp (grub_jmp_buf env) __attribute__ ((returns_twice));
void grub_longjmp (grub_jmp_buf env, int val) __attribute__ ((noreturn));
#endif /* ! GRUB_SETJMP_CPU_HEADER */

9
include/grub/sparc64/setjmp.h
View file

@ -1,6 +1,6 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002,2004,2006,2007 Free Software Foundation, Inc.
* Copyright (C) 2002,2004,2006,2007,2009 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -19,10 +19,11 @@
#ifndef GRUB_SETJMP_CPU_HEADER
#define GRUB_SETJMP_CPU_HEADER 1
/* FIXME (sparc64). */
typedef unsigned long grub_jmp_buf[20];
#include <grub/types.h>
int grub_setjmp (grub_jmp_buf env);
typedef grub_uint64_t grub_jmp_buf[3];
int grub_setjmp (grub_jmp_buf env) __attribute__ ((returns_twice));
void grub_longjmp (grub_jmp_buf env, int val) __attribute__ ((noreturn));
#endif /* ! GRUB_SETJMP_CPU_HEADER */

4
include/grub/x86_64/setjmp.h
View file

@ -1,6 +1,6 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2003,2006,2007 Free Software Foundation, Inc.
* Copyright (C) 2003,2006,2007,2009 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -21,7 +21,7 @@
typedef unsigned long grub_jmp_buf[8];
int grub_setjmp (grub_jmp_buf env);
int grub_setjmp (grub_jmp_buf env) __attribute__ ((returns_twice));
void grub_longjmp (grub_jmp_buf env, int val) __attribute__ ((noreturn));
#endif /* ! GRUB_SETJMP_CPU_HEADER */

21
normal/sparc64/setjmp.S
View file

@ -1,6 +1,6 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2005,2007 Free Software Foundation, Inc.
* Copyright (C) 2005,2007,2009 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -26,13 +26,22 @@
* int grub_setjmp (grub_jmp_buf env)
*/
FUNCTION(grub_setjmp)
ret
nop
stx %o7, [%o0 + 0x00]
stx %sp, [%o0 + 0x08]
stx %fp, [%o0 + 0x10]
retl
clr %o0
/*
* int grub_longjmp (grub_jmp_buf env, int val)
*/
FUNCTION(grub_longjmp)
ret
nop
ldx [%o0 + 0x10], %g1
movrz %o1, 1, %o1
flushw
ldx [%o0 + 0x00], %o7
ldx [%o0 + 0x08], %fp
sub %fp, 192, %sp
stx %g1, [%sp + 2047 + (14 * 8)]
retl
restore %o1, 0, %o0