lkml.org 
[lkml]   [2017]   [Dec]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 01/13] arm: do not use print_symbol()
Date
print_symbol() uses extra stack space to sprintf() symbol
information and then to feed that buffer to printk()

char buffer[KSYM_SYMBOL_LEN];

sprint_symbol(buffer, address);
printk(fmt, buffer);

Replace print_symbol() with a direct printk("%pS") call.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
---
arch/arm/kernel/process.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index d96714e1858c..db004f6f547a 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -21,7 +21,6 @@
#include <linux/unistd.h>
#include <linux/user.h>
#include <linux/interrupt.h>
-#include <linux/kallsyms.h>
#include <linux/init.h>
#include <linux/elfcore.h>
#include <linux/pm.h>
@@ -121,8 +120,8 @@ void __show_regs(struct pt_regs *regs)

show_regs_print_info(KERN_DEFAULT);

- print_symbol("PC is at %s\n", instruction_pointer(regs));
- print_symbol("LR is at %s\n", regs->ARM_lr);
+ printk("PC is at %pS\n", instruction_pointer(regs));
+ printk("LR is at %pS\n", (void *)regs->ARM_lr);
printk("pc : [<%08lx>] lr : [<%08lx>] psr: %08lx\n",
regs->ARM_pc, regs->ARM_lr, regs->ARM_cpsr);
printk("sp : %08lx ip : %08lx fp : %08lx\n",
--
2.15.1
\
 
 \ /
  Last update: 2017-12-11 13:55    [W:0.231 / U:0.124 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site