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authorDaniel Kalmar <kalmard@homejinni.com>2011-05-13 08:38:05 -0400
committerRobert Richter <robert.richter@amd.com>2011-06-15 14:35:34 +0200
commit5f307491f3a0c8551cedf5d90d660d656e0d56ec (patch)
tree1ef7853acf978784981c68a77b3236243a012ed6 /arch/mips/oprofile/common.c
parent94ea09c6a8e6c5ffb59bb1d5ca10008d37544e1a (diff)
MIPS: oprofile: Add callgraph support
Stack unwinding is done by code examination. For kernelspace, the already existing unwind function is utilized that uses kallsyms to quickly find the beginning of functions. For userspace a new function was added that examines code at and before the pc. Signed-off-by: Daniel Kalmar <kalmard@homejinni.com> Signed-off-by: Gergely Kis <gergely@homejinni.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
Diffstat (limited to 'arch/mips/oprofile/common.c')
-rw-r--r--arch/mips/oprofile/common.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c
index f9eb1aba6345..d1f2d4c52d42 100644
--- a/arch/mips/oprofile/common.c
+++ b/arch/mips/oprofile/common.c
@@ -115,6 +115,7 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
ops->start = op_mips_start;
ops->stop = op_mips_stop;
ops->cpu_type = lmodel->cpu_type;
+ ops->backtrace = op_mips_backtrace;
printk(KERN_INFO "oprofile: using %s performance monitoring.\n",
lmodel->cpu_type);