GitHub-Mirror/linux-bl808
2
0
Fork 0
mirror of https://github.com/Fishwaldo/linux-bl808.git synced 2025-06-17 20:25:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

arm64: stacktrace: Factor out backtrace initialisation

Browse source 
Some common code is required by each stacktrace user to initialise
struct stackframe before the first call to unwind_frame().

In preparation for adding to the common code, this patch factors it
out into a separate function start_backtrace(), and modifies the
stacktrace callers appropriately.

No functional change.

Signed-off-by: Dave Martin <dave.martin@arm.com>
[Mark: drop tsk argument, update more callsites]
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: James Morse <james.morse@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Dave Martin 2019-07-02 14:07:28 +01:00 • committed by Will Deacon
parent 8caa6e2be7
commit f3dcbe67ed
7 changed files with 30 additions and 42 deletions
Download patch file Download diff file Expand all files Collapse all files

10
arch/arm64/include/asm/stacktrace.h
View file

@ -131,4 +131,14 @@ static inline bool on_accessible_stack(const struct task_struct *tsk,
return false;
}
static inline void start_backtrace(struct stackframe *frame,
unsigned long fp, unsigned long pc)
{
frame->fp = fp;
frame->pc = pc;
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
frame->graph = 0;
#endif
}
#endif /* __ASM_STACKTRACE_H */