mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-04 01:24:12 +08:00
1934dc9a8a
Ensure inline asm functions are consistently aligned with compiler generated and SYM_FUNC_START*() functions. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20220915111143.930201368@infradead.org
26 lines
554 B
C
26 lines
554 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
|
|
#include <linux/linkage.h>
|
|
#include <linux/error-injection.h>
|
|
#include <linux/kprobes.h>
|
|
#include <linux/objtool.h>
|
|
|
|
asmlinkage void just_return_func(void);
|
|
|
|
asm(
|
|
".text\n"
|
|
".type just_return_func, @function\n"
|
|
".globl just_return_func\n"
|
|
ASM_FUNC_ALIGN
|
|
"just_return_func:\n"
|
|
ANNOTATE_NOENDBR
|
|
ASM_RET
|
|
".size just_return_func, .-just_return_func\n"
|
|
);
|
|
|
|
void override_function_with_return(struct pt_regs *regs)
|
|
{
|
|
regs->ip = (unsigned long)&just_return_func;
|
|
}
|
|
NOKPROBE_SYMBOL(override_function_with_return);
|