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uml: tidy fault code

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Tidying in preparation for the segfault register dumping patch which follows.

void * pointers are changed to union uml_pt_regs *.  This makes the types
match reality, except in arch_fixup, which is changed to operate on a union
uml_pt_regs.  This fixes a bug in the call from segv_handler, which passes a
union uml_pt_regs, to segv, which expects to pass a struct sigcontext to
arch_fixup.

Whitespace and other style fixes.

There's also a errno printk fix.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jeff Dike
2007-05-06 14:51:24 -07:00
committed by Linus Torvalds
parent ccdddb5787
commit 5d86456d38
8 changed files with 63 additions and 84 deletions
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30
arch/um/sys-x86_64/fault.c
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@@ -4,20 +4,24 @@
* Licensed under the GPL
*/
#include "user.h"
#include "sysdep/ptrace.h"
int arch_fixup(unsigned long address, void *sc_ptr)
/* These two are from asm-um/uaccess.h and linux/module.h, check them. */
struct exception_table_entry
{
/* XXX search_exception_tables() */
unsigned long insn;
unsigned long fixup;
};
const struct exception_table_entry *search_exception_tables(unsigned long add);
int arch_fixup(unsigned long address, union uml_pt_regs *regs)
{
const struct exception_table_entry *fixup;
fixup = search_exception_tables(address);
if(fixup != 0){
UPT_IP(regs) = fixup->fixup;
return(1);
}
return(0);
}
/* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/