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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
| commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
| tree | a94efe259b9009378be6d90eb30d2b019d95c194 /arch/x86/lib/error-inject.c | |
| parent | Initial commit. (diff) | |
| download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip | |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/x86/lib/error-inject.c')
| -rw-r--r-- | arch/x86/lib/error-inject.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/x86/lib/error-inject.c b/arch/x86/lib/error-inject.c new file mode 100644 index 000000000..520897061 --- /dev/null +++ b/arch/x86/lib/error-inject.c @@ -0,0 +1,22 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <linux/linkage.h> +#include <linux/error-injection.h> +#include <linux/kprobes.h> + +asmlinkage void just_return_func(void); + +asm( + ".text\n" + ".type just_return_func, @function\n" + ".globl just_return_func\n" + "just_return_func:\n" + 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); |