diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-07-31 14:20:16 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-07-31 14:20:16 +0100 |
| commit | 7b70c4275f28702b76b273c8534c38f8313812e9 (patch) | |
| tree | 1df2229ca02466bd1adda814ac5c37aa0a597db1 /arch/arm/kernel/process.c | |
| parent | ceb0885d3b01bb2e2f18765770e212914f2864be (diff) | |
| parent | a20df564d15bd28e3df24e1c65b885bd74d23f17 (diff) | |
| download | linux-7b70c4275f28702b76b273c8534c38f8313812e9.tar.gz linux-7b70c4275f28702b76b273c8534c38f8313812e9.tar.bz2 linux-7b70c4275f28702b76b273c8534c38f8313812e9.zip | |
Merge branch 'devel-stable' into devel
Conflicts:
arch/arm/kernel/entry-armv.S
arch/arm/kernel/setup.c
arch/arm/mm/init.c
Diffstat (limited to 'arch/arm/kernel/process.c')
| -rw-r--r-- | arch/arm/kernel/process.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 2e2ec97cc50c..401e38be1f78 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -28,6 +28,7 @@ #include <linux/tick.h> #include <linux/utsname.h> #include <linux/uaccess.h> +#include <linux/random.h> #include <asm/cacheflush.h> #include <asm/leds.h> @@ -37,6 +38,12 @@ #include <asm/stacktrace.h> #include <asm/mach/time.h> +#ifdef CONFIG_CC_STACKPROTECTOR +#include <linux/stackprotector.h> +unsigned long __stack_chk_guard __read_mostly; +EXPORT_SYMBOL(__stack_chk_guard); +#endif + static const char *processor_modes[] = { "USER_26", "FIQ_26" , "IRQ_26" , "SVC_26" , "UK4_26" , "UK5_26" , "UK6_26" , "UK7_26" , "UK8_26" , "UK9_26" , "UK10_26", "UK11_26", "UK12_26", "UK13_26", "UK14_26", "UK15_26", @@ -445,3 +452,9 @@ unsigned long get_wchan(struct task_struct *p) } while (count ++ < 16); return 0; } + +unsigned long arch_randomize_brk(struct mm_struct *mm) +{ + unsigned long range_end = mm->brk + 0x02000000; + return randomize_range(mm->brk, range_end, 0) ? : mm->brk; +} |