lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[PATCH] powerpc: Add oprofile calltrace support

Browse Source 
Add oprofile calltrace support to powerpc. Disable spinlock backtracing
now we can use calltrace info.

(Updated to work on both 32bit and 64bit by me).

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Brian Rogan
2006-03-27 11:57:01 +11:00
committed by Paul Mackerras
parent b848e0a07d
commit 6c6bd754bf
5 changed files with 132 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
arch/powerpc/oprofile/common.c
View File

@@ -126,8 +126,7 @@ static int op_powerpc_create_files(struct super_block *sb, struct dentry *root)
sys.enable_kernel = 1;
sys.enable_user = 1;
#ifdef CONFIG_PPC64
/* Turn on backtracing through spinlocks by default */
sys.backtrace_spinlocks = 1;
sys.backtrace_spinlocks = 0;
#endif
return 0;
@@ -168,6 +167,7 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
ops->shutdown = op_powerpc_shutdown;
ops->start = op_powerpc_start;
ops->stop = op_powerpc_stop;
ops->backtrace = op_powerpc_backtrace;
printk(KERN_INFO "oprofile: using %s performance monitoring.\n",
ops->cpu_type);