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| author | Jeff Dike <jdike@addtoit.com> | 2007-05-06 14:51:24 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-07 12:13:02 -0700 |
| commit | 5d86456d3852cb95a38d2b23fe01cede54984ba5 (patch) | |
| tree | a0e973d629717d93c7b4dc32ad7afd9e64f5f974 /arch/um/sys-x86_64 | |
| parent | ccdddb57874522e6b267204f9c5e94ba7d9d66b0 (diff) | |
| download | op-kernel-dev-5d86456d3852cb95a38d2b23fe01cede54984ba5.zip op-kernel-dev-5d86456d3852cb95a38d2b23fe01cede54984ba5.tar.gz | |
uml: tidy fault code
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>
Diffstat (limited to 'arch/um/sys-x86_64')
| -rw-r--r-- | arch/um/sys-x86_64/fault.c | 30 | ||||
| -rw-r--r-- | arch/um/sys-x86_64/signal.c | 2 |
2 files changed, 18 insertions, 14 deletions
diff --git a/arch/um/sys-x86_64/fault.c b/arch/um/sys-x86_64/fault.c index cee1513..4636b14 100644 --- a/arch/um/sys-x86_64/fault.c +++ b/arch/um/sys-x86_64/fault.c @@ -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: - */ diff --git a/arch/um/sys-x86_64/signal.c b/arch/um/sys-x86_64/signal.c index af2f017..0680062 100644 --- a/arch/um/sys-x86_64/signal.c +++ b/arch/um/sys-x86_64/signal.c @@ -51,7 +51,7 @@ static int copy_sc_from_user_skas(struct pt_regs *regs, #undef GETREG - return(err); + return err; } int copy_sc_to_user_skas(struct sigcontext __user *to, |
