xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ARM: kprobes: Add load_write_pc()

Browse Source 
This writes a value to PC which was obtained as the result of a
LDR or LDM instruction. For ARMv5T and later this must perform
interworking.

Signed-off-by: Jon Medhurst <tixy@yxit.co.uk>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
This commit is contained in:
Jon Medhurst
2011-06-10 20:29:04 +01:00
committed by Tixy
parent f39ca8b488
commit 263e368a2f
2 changed files with 39 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
arch/arm/kernel/kprobes-common.c
View File

@@ -45,9 +45,24 @@ void __init find_str_pc_offset(void)
#endif /* !find_str_pc_offset */
#ifndef test_load_write_pc_interworking
bool load_write_pc_interworks;
void __init test_load_write_pc_interworking(void)
{
int arch = cpu_architecture();
BUG_ON(arch == CPU_ARCH_UNKNOWN);
load_write_pc_interworks = arch >= CPU_ARCH_ARMv5T;
}
#endif /* !test_load_write_pc_interworking */
void __init arm_kprobe_decode_init(void)
{
find_str_pc_offset();
test_load_write_pc_interworking();
}