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riscv: Rename "sp_in_global" to "current_stack_pointer"

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To follow the existing per-arch conventions, rename "sp_in_global" to
"current_stack_pointer". This will let it be used in non-arch places
(like HARDENED_USERCOPY).

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This commit is contained in:
Kees Cook
2022-02-23 22:04:11 -08:00
committed by Palmer Dabbelt
parent 60210a3d86
commit fdecfea093
3 changed files with 5 additions and 4 deletions
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6
arch/riscv/kernel/stacktrace.c
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@@ -14,8 +14,6 @@
#include <asm/stacktrace.h>
register unsigned long sp_in_global __asm__("sp");
#ifdef CONFIG_FRAME_POINTER
void notrace walk_stackframe(struct task_struct *task, struct pt_regs *regs,
@@ -30,7 +28,7 @@ void notrace walk_stackframe(struct task_struct *task, struct pt_regs *regs,
pc = instruction_pointer(regs);
} else if (task == NULL || task == current) {
fp = (unsigned long)__builtin_frame_address(0);
sp = sp_in_global;
sp = current_stack_pointer;
pc = (unsigned long)walk_stackframe;
} else {
/* task blocked in __switch_to */
@@ -78,7 +76,7 @@ void notrace walk_stackframe(struct task_struct *task,
sp = user_stack_pointer(regs);
pc = instruction_pointer(regs);
} else if (task == NULL || task == current) {
sp = sp_in_global;
sp = current_stack_pointer;
pc = (unsigned long)walk_stackframe;
} else {
/* task blocked in __switch_to */