diff options
| author | Gennady Sharapov <Gennady.V.Sharapov@intel.com> | 2006-01-08 01:01:31 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-08 20:13:39 -0800 |
| commit | ea2ba7dc3dd3f85034e6da6abacc813d723a2ad5 (patch) | |
| tree | 56f3d2a22d3ba3d91042d9a536b659b9c967dc03 /arch/um/kernel/tt | |
| parent | 0805d89c151b4800eade4c2f50d39c5253d7d054 (diff) | |
[PATCH] uml: move libc-dependent code from trap_user.c
The serial UML OS-abstraction layer patch (um/kernel dir).
This moves all systemcalls from trap_user.c file under os-Linux dir
Signed-off-by: Gennady Sharapov <Gennady.V.Sharapov@intel.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/um/kernel/tt')
| -rw-r--r-- | arch/um/kernel/tt/trap_user.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/arch/um/kernel/tt/trap_user.c b/arch/um/kernel/tt/trap_user.c index 7501900f894..a414c529fbc 100644 --- a/arch/um/kernel/tt/trap_user.c +++ b/arch/um/kernel/tt/trap_user.c @@ -1,4 +1,4 @@ -/* +/* * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) * Licensed under the GPL */ @@ -18,8 +18,8 @@ void sig_handler_common_tt(int sig, void *sc_ptr) { struct sigcontext *sc = sc_ptr; struct tt_regs save_regs, *r; - struct signal_info *info; int save_errno = errno, is_user; + void (*handler)(int, union uml_pt_regs *); /* This is done because to allow SIGSEGV to be delivered inside a SEGV * handler. This can happen in copy_user, and if SEGV is disabled, @@ -40,10 +40,14 @@ void sig_handler_common_tt(int sig, void *sc_ptr) if(sig != SIGUSR2) r->syscall = -1; - info = &sig_info[sig]; - if(!info->is_irq) unblock_signals(); + handler = sig_info[sig]; + + /* unblock SIGALRM, SIGVTALRM, SIGIO if sig isn't IRQ signal */ + if (sig != SIGIO && sig != SIGWINCH && + sig != SIGVTALRM && sig != SIGALRM) + unblock_signals(); - (*info->handler)(sig, (union uml_pt_regs *) r); + handler(sig, (union uml_pt_regs *) r); if(is_user){ interrupt_end(); |