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Date: Mon, 08 Jan 2007 21:05:48 -0500
From: Jeff Dike <jdike@...toit.com>
To: akpm@...l.org
cc: linux-kernel@...r.kernel.org,
user-mode-linux-devel@...ts.sourceforge.net
Subject: [PATCH 5/7] UML - Make signal handlers static
A bunch of the signal handlers can be made static.
Signed-off-by: Jeff Dike <jdike@...toit.com>
--
arch/um/include/kern_util.h | 4 ----
arch/um/kernel/trap.c | 28 ++++++++++++++--------------
2 files changed, 14 insertions(+), 18 deletions(-)
Index: linux-2.6.18-mm/arch/um/include/kern_util.h
===================================================================
--- linux-2.6.18-mm.orig/arch/um/include/kern_util.h 2007-01-08 16:29:07.000000000 -0500
+++ linux-2.6.18-mm/arch/um/include/kern_util.h 2007-01-08 16:39:59.000000000 -0500
@@ -87,7 +87,6 @@ extern void timer_irq(union uml_pt_regs
extern void unprotect_stack(unsigned long stack);
extern void do_uml_exitcalls(void);
extern int attach_debugger(int idle_pid, int pid, int stop);
-extern void bad_segv(struct faultinfo fi, unsigned long ip);
extern int config_gdb(char *str);
extern int remove_gdb(void);
extern char *uml_strdup(char *string);
@@ -103,8 +102,6 @@ extern int clear_user_proc(void *buf, in
extern int copy_to_user_proc(void *to, void *from, int size);
extern int copy_from_user_proc(void *to, void *from, int size);
extern int strlen_user_proc(char *str);
-extern void bus_handler(int sig, union uml_pt_regs *regs);
-extern void winch(int sig, union uml_pt_regs *regs);
extern long execute_syscall(void *r);
extern int smp_sigio_handler(void);
extern void *get_current(void);
@@ -119,7 +116,6 @@ extern void time_init_kern(void);
/* Are we disallowed to sleep? Used to choose between GFP_KERNEL and GFP_ATOMIC. */
extern int __cant_sleep(void);
-extern void segv_handler(int sig, union uml_pt_regs *regs);
extern void sigio_handler(int sig, union uml_pt_regs *regs);
#endif
Index: linux-2.6.18-mm/arch/um/kernel/trap.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/kernel/trap.c 2007-01-08 16:15:33.000000000 -0500
+++ linux-2.6.18-mm/arch/um/kernel/trap.c 2007-01-08 16:41:18.000000000 -0500
@@ -128,7 +128,18 @@ out_of_memory:
goto out;
}
-void segv_handler(int sig, union uml_pt_regs *regs)
+static void bad_segv(struct faultinfo fi, unsigned long ip)
+{
+ struct siginfo si;
+
+ si.si_signo = SIGSEGV;
+ si.si_code = SEGV_ACCERR;
+ si.si_addr = (void __user *) FAULT_ADDRESS(fi);
+ current->thread.arch.faultinfo = fi;
+ force_sig_info(SIGSEGV, &si, current);
+}
+
+static void segv_handler(int sig, union uml_pt_regs *regs)
{
struct faultinfo * fi = UPT_FAULTINFO(regs);
@@ -205,17 +216,6 @@ unsigned long segv(struct faultinfo fi,
return(0);
}
-void bad_segv(struct faultinfo fi, unsigned long ip)
-{
- struct siginfo si;
-
- si.si_signo = SIGSEGV;
- si.si_code = SEGV_ACCERR;
- si.si_addr = (void __user *) FAULT_ADDRESS(fi);
- current->thread.arch.faultinfo = fi;
- force_sig_info(SIGSEGV, &si, current);
-}
-
void relay_signal(int sig, union uml_pt_regs *regs)
{
if(arch_handle_signal(sig, regs))
@@ -232,14 +232,14 @@ void relay_signal(int sig, union uml_pt_
force_sig(sig, current);
}
-void bus_handler(int sig, union uml_pt_regs *regs)
+static void bus_handler(int sig, union uml_pt_regs *regs)
{
if(current->thread.fault_catcher != NULL)
do_longjmp(current->thread.fault_catcher, 1);
else relay_signal(sig, regs);
}
-void winch(int sig, union uml_pt_regs *regs)
+static void winch(int sig, union uml_pt_regs *regs)
{
do_IRQ(WINCH_IRQ, regs);
}
-
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