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

arm64: Add stack information to on_accessible_stack

Browse Source 
In preparation for enabling the stackleak plugin on arm64,
we need a way to get the bounds of the current stack. Extend
on_accessible_stack to get this information.

Acked-by: Alexander Popov <alex.popov@linux.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
[will: folded in fix for allmodconfig build breakage w/ sdei]
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Laura Abbott
2018-07-20 14:41:53 -07:00
committed by Will Deacon
parent 2c870e6113
commit 8a1ccfbc9e
5 changed files with 111 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
arch/arm64/include/asm/sdei.h
View File

@@ -40,15 +40,18 @@ asmlinkage unsigned long __sdei_handler(struct pt_regs *regs,
unsigned long sdei_arch_get_entry_point(int conduit);
#define sdei_arch_get_entry_point(x) sdei_arch_get_entry_point(x)
bool _on_sdei_stack(unsigned long sp);
static inline bool on_sdei_stack(unsigned long sp)
struct stack_info;
bool _on_sdei_stack(unsigned long sp, struct stack_info *info);
static inline bool on_sdei_stack(unsigned long sp,
struct stack_info *info)
{
if (!IS_ENABLED(CONFIG_VMAP_STACK))
return false;
if (!IS_ENABLED(CONFIG_ARM_SDE_INTERFACE))
return false;
if (in_nmi())
return _on_sdei_stack(sp);
return _on_sdei_stack(sp, info);
return false;
}