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Date: Tue, 8 Dec 2009 00:29:42 -0800
From: Andy Isaacson <adi@...apodia.org>
To: linux-kernel@...r.kernel.org
Cc: Robert Hancock <hancockrwd@...il.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Richard Zidlicky <rz@...ux-m68k.org>, netdev@...r.kernel.org
Subject: [PATCH 1/2] factor duplicated code out of __show_regs into show_regs_common
Unify x86_32 and x86_64 implementations of __show_regs header,
standardizing on the x86_64 format string in the process. Also,
32-bit will now call print_modules.
Signed-off-by: Andy Isaacson <adi@...apodia.org>
---
I cast about for a good place to stick the show_regs_common prototype;
suggestions appreciated.
Compile-tested on 32-bit and 64-bit.
arch/x86/include/asm/system.h | 1 +
arch/x86/kernel/process.c | 18 ++++++++++++++++++
arch/x86/kernel/process_32.c | 14 +-------------
arch/x86/kernel/process_64.c | 16 ++--------------
4 files changed, 22 insertions(+), 27 deletions(-)
diff --git a/arch/x86/include/asm/system.h b/arch/x86/include/asm/system.h
index 022a843..ecb544e 100644
--- a/arch/x86/include/asm/system.h
+++ b/arch/x86/include/asm/system.h
@@ -23,6 +23,7 @@ struct task_struct *__switch_to(struct task_struct *prev,
struct tss_struct;
void __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p,
struct tss_struct *tss);
+extern void show_regs_common(void);
#ifdef CONFIG_X86_32
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 744508e..a93f319 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -9,6 +9,8 @@
#include <linux/pm.h>
#include <linux/clockchips.h>
#include <linux/random.h>
+#include <linux/dmi.h>
+#include <linux/utsname.h>
#include <trace/events/power.h>
#include <linux/hw_breakpoint.h>
#include <asm/system.h>
@@ -89,6 +91,22 @@ void exit_thread(void)
}
}
+void show_regs_common(void)
+{
+ const char *board;
+
+ board = dmi_get_system_info(DMI_PRODUCT_NAME);
+ if (!board)
+ board = "";
+
+ printk("\n");
+ printk(KERN_INFO "Pid: %d, comm: %.20s %s %s %.*s %s\n",
+ current->pid, current->comm, print_tainted(),
+ init_utsname()->release,
+ (int)strcspn(init_utsname()->version, " "),
+ init_utsname()->version, board);
+}
+
void flush_thread(void)
{
struct task_struct *tsk = current;
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 075580b..120b887 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -23,7 +23,6 @@
#include <linux/vmalloc.h>
#include <linux/user.h>
#include <linux/interrupt.h>
-#include <linux/utsname.h>
#include <linux/delay.h>
#include <linux/reboot.h>
#include <linux/init.h>
@@ -35,7 +34,6 @@
#include <linux/tick.h>
#include <linux/percpu.h>
#include <linux/prctl.h>
-#include <linux/dmi.h>
#include <linux/ftrace.h>
#include <linux/uaccess.h>
#include <linux/io.h>
@@ -128,7 +126,6 @@ void __show_regs(struct pt_regs *regs, int all)
unsigned long d0, d1, d2, d3, d6, d7;
unsigned long sp;
unsigned short ss, gs;
- const char *board;
if (user_mode_vm(regs)) {
sp = regs->sp;
@@ -140,16 +137,7 @@ void __show_regs(struct pt_regs *regs, int all)
savesegment(gs, gs);
}
- printk("\n");
-
- board = dmi_get_system_info(DMI_PRODUCT_NAME);
- if (!board)
- board = "";
- printk("Pid: %d, comm: %s %s (%s %.*s) %s\n",
- task_pid_nr(current), current->comm,
- print_tainted(), init_utsname()->release,
- (int)strcspn(init_utsname()->version, " "),
- init_utsname()->version, board);
+ show_regs_common();
printk("EIP: %04x:[<%08lx>] EFLAGS: %08lx CPU: %d\n",
(u16)regs->cs, regs->ip, regs->flags,
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index a98fe88..d0570b9 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -26,7 +26,6 @@
#include <linux/slab.h>
#include <linux/user.h>
#include <linux/interrupt.h>
-#include <linux/utsname.h>
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/ptrace.h>
@@ -38,7 +37,6 @@
#include <linux/uaccess.h>
#include <linux/io.h>
#include <linux/ftrace.h>
-#include <linux/dmi.h>
#include <asm/pgtable.h>
#include <asm/system.h>
@@ -163,18 +161,8 @@ void __show_regs(struct pt_regs *regs, int all)
unsigned long d0, d1, d2, d3, d6, d7;
unsigned int fsindex, gsindex;
unsigned int ds, cs, es;
- const char *board;
-
- printk("\n");
- print_modules();
- board = dmi_get_system_info(DMI_PRODUCT_NAME);
- if (!board)
- board = "";
- printk(KERN_INFO "Pid: %d, comm: %.20s %s %s %.*s %s\n",
- current->pid, current->comm, print_tainted(),
- init_utsname()->release,
- (int)strcspn(init_utsname()->version, " "),
- init_utsname()->version, board);
+
+ show_regs_common();
printk(KERN_INFO "RIP: %04lx:[<%016lx>] ", regs->cs & 0xffff, regs->ip);
printk_address(regs->ip, 1);
printk(KERN_INFO "RSP: %04lx:%016lx EFLAGS: %08lx\n", regs->ss,
--
1.6.5.3
--
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