The following commit has been merged into the x86/core branch of tip: Commit-ID: cba7a74a1b138c2b7379c88fbbe7c6b94d5bd180 Gitweb: https://git.kernel.org/tip/cba7a74a1b138c2b7379c88fbbe7c6b94d5bd180 Author: Peter Zijlstra <peterz@xxxxxxxxxxxxx> AuthorDate: Tue, 08 Mar 2022 16:30:34 +01:00 Committer: Peter Zijlstra <peterz@xxxxxxxxxxxxx> CommitterDate: Tue, 08 Mar 2022 23:53:33 +01:00 x86/ibt,ftrace: Add ENDBR to samples/ftrace Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> Acked-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx> Link: https://lore.kernel.org/r/20220308154318.523421433@xxxxxxxxxxxxx --- samples/ftrace/ftrace-direct-modify.c | 5 +++++ samples/ftrace/ftrace-direct-multi-modify.c | 10 +++++++--- samples/ftrace/ftrace-direct-multi.c | 5 ++++- samples/ftrace/ftrace-direct-too.c | 3 +++ samples/ftrace/ftrace-direct.c | 3 +++ 5 files changed, 22 insertions(+), 4 deletions(-) diff --git a/samples/ftrace/ftrace-direct-modify.c b/samples/ftrace/ftrace-direct-modify.c index 2c7c318..39146fa 100644 --- a/samples/ftrace/ftrace-direct-modify.c +++ b/samples/ftrace/ftrace-direct-modify.c @@ -24,20 +24,25 @@ static unsigned long my_ip = (unsigned long)schedule; #ifdef CONFIG_X86_64 +#include <asm/ibt.h> + asm ( " .pushsection .text, \"ax\", @progbits\n" " .type my_tramp1, @function\n" " .globl my_tramp1\n" " my_tramp1:" + ASM_ENDBR " pushq %rbp\n" " movq %rsp, %rbp\n" " call my_direct_func1\n" " leave\n" " .size my_tramp1, .-my_tramp1\n" ASM_RET + " .type my_tramp2, @function\n" " .globl my_tramp2\n" " my_tramp2:" + ASM_ENDBR " pushq %rbp\n" " movq %rsp, %rbp\n" " call my_direct_func2\n" diff --git a/samples/ftrace/ftrace-direct-multi-modify.c b/samples/ftrace/ftrace-direct-multi-modify.c index 6f43a39..65aa94d 100644 --- a/samples/ftrace/ftrace-direct-multi-modify.c +++ b/samples/ftrace/ftrace-direct-multi-modify.c @@ -22,11 +22,14 @@ extern void my_tramp2(void *); #ifdef CONFIG_X86_64 +#include <asm/ibt.h> + asm ( " .pushsection .text, \"ax\", @progbits\n" " .type my_tramp1, @function\n" " .globl my_tramp1\n" " my_tramp1:" + ASM_ENDBR " pushq %rbp\n" " movq %rsp, %rbp\n" " pushq %rdi\n" @@ -34,12 +37,13 @@ asm ( " call my_direct_func1\n" " popq %rdi\n" " leave\n" -" ret\n" + ASM_RET " .size my_tramp1, .-my_tramp1\n" + " .type my_tramp2, @function\n" -"\n" " .globl my_tramp2\n" " my_tramp2:" + ASM_ENDBR " pushq %rbp\n" " movq %rsp, %rbp\n" " pushq %rdi\n" @@ -47,7 +51,7 @@ asm ( " call my_direct_func2\n" " popq %rdi\n" " leave\n" -" ret\n" + ASM_RET " .size my_tramp2, .-my_tramp2\n" " .popsection\n" ); diff --git a/samples/ftrace/ftrace-direct-multi.c b/samples/ftrace/ftrace-direct-multi.c index 2fafc9a..41ded7c 100644 --- a/samples/ftrace/ftrace-direct-multi.c +++ b/samples/ftrace/ftrace-direct-multi.c @@ -17,11 +17,14 @@ extern void my_tramp(void *); #ifdef CONFIG_X86_64 +#include <asm/ibt.h> + asm ( " .pushsection .text, \"ax\", @progbits\n" " .type my_tramp, @function\n" " .globl my_tramp\n" " my_tramp:" + ASM_ENDBR " pushq %rbp\n" " movq %rsp, %rbp\n" " pushq %rdi\n" @@ -29,7 +32,7 @@ asm ( " call my_direct_func\n" " popq %rdi\n" " leave\n" -" ret\n" + ASM_RET " .size my_tramp, .-my_tramp\n" " .popsection\n" ); diff --git a/samples/ftrace/ftrace-direct-too.c b/samples/ftrace/ftrace-direct-too.c index c93fb0e..6690468 100644 --- a/samples/ftrace/ftrace-direct-too.c +++ b/samples/ftrace/ftrace-direct-too.c @@ -19,11 +19,14 @@ extern void my_tramp(void *); #ifdef CONFIG_X86_64 +#include <asm/ibt.h> + asm ( " .pushsection .text, \"ax\", @progbits\n" " .type my_tramp, @function\n" " .globl my_tramp\n" " my_tramp:" + ASM_ENDBR " pushq %rbp\n" " movq %rsp, %rbp\n" " pushq %rdi\n" diff --git a/samples/ftrace/ftrace-direct.c b/samples/ftrace/ftrace-direct.c index 8b551e5..e8f1e44 100644 --- a/samples/ftrace/ftrace-direct.c +++ b/samples/ftrace/ftrace-direct.c @@ -16,11 +16,14 @@ extern void my_tramp(void *); #ifdef CONFIG_X86_64 +#include <asm/ibt.h> + asm ( " .pushsection .text, \"ax\", @progbits\n" " .type my_tramp, @function\n" " .globl my_tramp\n" " my_tramp:" + ASM_ENDBR " pushq %rbp\n" " movq %rsp, %rbp\n" " pushq %rdi\n"
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