Some tidying of the irq code before introducing irq stacks. Mostly
style fixes, but the timer handler calls the timer code directly
rather than going through the generic sig_handler_common_skas.
Signed-off-by: Jeff Dike <[email protected]>
--
arch/um/kernel/init_task.c | 11 -----------
arch/um/kernel/irq.c | 4 ++--
arch/um/os-Linux/signal.c | 10 +++++++---
arch/um/os-Linux/skas/process.c | 6 ++++--
4 files changed, 13 insertions(+), 18 deletions(-)
Index: linux-2.6.21-mm/arch/um/kernel/init_task.c
===================================================================
--- linux-2.6.21-mm.orig/arch/um/kernel/init_task.c 2007-05-07 14:52:28.000000000 -0400
+++ linux-2.6.21-mm/arch/um/kernel/init_task.c 2007-05-07 14:56:24.000000000 -0400
@@ -46,14 +46,3 @@ void unprotect_stack(unsigned long stack
{
os_protect_memory((void *) stack, THREAD_SIZE, 1, 1, 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:
- */
Index: linux-2.6.21-mm/arch/um/kernel/irq.c
===================================================================
--- linux-2.6.21-mm.orig/arch/um/kernel/irq.c 2007-05-07 14:52:28.000000000 -0400
+++ linux-2.6.21-mm/arch/um/kernel/irq.c 2007-05-07 14:56:24.000000000 -0400
@@ -1,4 +1,4 @@
-/*
+/*
* Copyright (C) 2000 Jeff Dike ([email protected])
* Licensed under the GPL
* Derived (i.e. mostly copied) from arch/i386/kernel/irq.c:
@@ -53,7 +53,7 @@ int show_interrupts(struct seq_file *p,
if (i < NR_IRQS) {
spin_lock_irqsave(&irq_desc[i].lock, flags);
action = irq_desc[i].action;
- if (!action)
+ if (!action)
goto skip;
seq_printf(p, "%3d: ",i);
#ifndef CONFIG_SMP
Index: linux-2.6.21-mm/arch/um/os-Linux/signal.c
===================================================================
--- linux-2.6.21-mm.orig/arch/um/os-Linux/signal.c 2007-05-07 14:52:28.000000000 -0400
+++ linux-2.6.21-mm/arch/um/os-Linux/signal.c 2007-05-07 14:56:24.000000000 -0400
@@ -61,15 +61,19 @@ void sig_handler(int sig, struct sigcont
static void real_alarm_handler(int sig, struct sigcontext *sc)
{
+ union uml_pt_regs regs;
+
if(sig == SIGALRM)
switch_timers(0);
- CHOOSE_MODE_PROC(sig_handler_common_tt, sig_handler_common_skas,
- sig, sc);
+ if(sc != NULL)
+ copy_sc(®s, sc);
+ regs.skas.is_user = 0;
+ unblock_signals();
+ timer_handler(sig, ®s);
if(sig == SIGALRM)
switch_timers(1);
-
}
void alarm_handler(int sig, struct sigcontext *sc)
Index: linux-2.6.21-mm/arch/um/os-Linux/skas/process.c
===================================================================
--- linux-2.6.21-mm.orig/arch/um/os-Linux/skas/process.c 2007-05-07 14:52:28.000000000 -0400
+++ linux-2.6.21-mm/arch/um/os-Linux/skas/process.c 2007-05-07 14:56:24.000000000 -0400
@@ -288,7 +288,8 @@ int start_userspace(unsigned long stub_s
void userspace(union uml_pt_regs *regs)
{
int err, status, op, pid = userspace_pid[0];
- int local_using_sysemu; /*To prevent races if using_sysemu changes under us.*/
+ /* To prevent races if using_sysemu changes under us.*/
+ int local_using_sysemu;
while(1){
restore_registers(pid, regs);
@@ -296,7 +297,8 @@ void userspace(union uml_pt_regs *regs)
/* Now we set local_using_sysemu to be used for one loop */
local_using_sysemu = get_using_sysemu();
- op = SELECT_PTRACE_OPERATION(local_using_sysemu, singlestepping(NULL));
+ op = SELECT_PTRACE_OPERATION(local_using_sysemu,
+ singlestepping(NULL));
err = ptrace(op, pid, 0, 0);
if(err)
-
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