mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-27 06:04:23 +08:00
samples: ftrace: Add RISC-V support for SAMPLE_FTRACE_DIRECT[_MULTI]
Add RISC-V variants of the ftrace-direct* samples. Tested-by: Evgenii Shatokhin <e.shatokhin@yadro.com> Signed-off-by: Song Shuai <suagrfillet@gmail.com> Tested-by: Guo Ren <guoren@kernel.org> Signed-off-by: Guo Ren <guoren@kernel.org> Acked-by: Björn Töpel <bjorn@rivosinc.com> Link: https://lore.kernel.org/r/20231130121531.1178502-5-bjorn@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This commit is contained in:
parent
196c79f19a
commit
629291dd84
@ -142,6 +142,8 @@ config RISCV
|
||||
select HAVE_REGS_AND_STACK_ACCESS_API
|
||||
select HAVE_RETHOOK if !XIP_KERNEL
|
||||
select HAVE_RSEQ
|
||||
select HAVE_SAMPLE_FTRACE_DIRECT
|
||||
select HAVE_SAMPLE_FTRACE_DIRECT_MULTI
|
||||
select HAVE_STACKPROTECTOR
|
||||
select HAVE_SYSCALL_TRACEPOINTS
|
||||
select HOTPLUG_CORE_SYNC_DEAD if HOTPLUG_CPU
|
||||
|
@ -24,6 +24,41 @@ extern void my_tramp2(void *);
|
||||
|
||||
static unsigned long my_ip = (unsigned long)schedule;
|
||||
|
||||
#ifdef CONFIG_RISCV
|
||||
#include <asm/asm.h>
|
||||
|
||||
asm (
|
||||
" .pushsection .text, \"ax\", @progbits\n"
|
||||
" .type my_tramp1, @function\n"
|
||||
" .globl my_tramp1\n"
|
||||
" my_tramp1:\n"
|
||||
" addi sp,sp,-2*"SZREG"\n"
|
||||
" "REG_S" t0,0*"SZREG"(sp)\n"
|
||||
" "REG_S" ra,1*"SZREG"(sp)\n"
|
||||
" call my_direct_func1\n"
|
||||
" "REG_L" t0,0*"SZREG"(sp)\n"
|
||||
" "REG_L" ra,1*"SZREG"(sp)\n"
|
||||
" addi sp,sp,2*"SZREG"\n"
|
||||
" jr t0\n"
|
||||
" .size my_tramp1, .-my_tramp1\n"
|
||||
" .type my_tramp2, @function\n"
|
||||
" .globl my_tramp2\n"
|
||||
|
||||
" my_tramp2:\n"
|
||||
" addi sp,sp,-2*"SZREG"\n"
|
||||
" "REG_S" t0,0*"SZREG"(sp)\n"
|
||||
" "REG_S" ra,1*"SZREG"(sp)\n"
|
||||
" call my_direct_func2\n"
|
||||
" "REG_L" t0,0*"SZREG"(sp)\n"
|
||||
" "REG_L" ra,1*"SZREG"(sp)\n"
|
||||
" addi sp,sp,2*"SZREG"\n"
|
||||
" jr t0\n"
|
||||
" .size my_tramp2, .-my_tramp2\n"
|
||||
" .popsection\n"
|
||||
);
|
||||
|
||||
#endif /* CONFIG_RISCV */
|
||||
|
||||
#ifdef CONFIG_X86_64
|
||||
|
||||
#include <asm/ibt.h>
|
||||
|
@ -22,6 +22,47 @@ void my_direct_func2(unsigned long ip)
|
||||
extern void my_tramp1(void *);
|
||||
extern void my_tramp2(void *);
|
||||
|
||||
#ifdef CONFIG_RISCV
|
||||
#include <asm/asm.h>
|
||||
|
||||
asm (
|
||||
" .pushsection .text, \"ax\", @progbits\n"
|
||||
" .type my_tramp1, @function\n"
|
||||
" .globl my_tramp1\n"
|
||||
" my_tramp1:\n"
|
||||
" addi sp,sp,-3*"SZREG"\n"
|
||||
" "REG_S" a0,0*"SZREG"(sp)\n"
|
||||
" "REG_S" t0,1*"SZREG"(sp)\n"
|
||||
" "REG_S" ra,2*"SZREG"(sp)\n"
|
||||
" mv a0,t0\n"
|
||||
" call my_direct_func1\n"
|
||||
" "REG_L" a0,0*"SZREG"(sp)\n"
|
||||
" "REG_L" t0,1*"SZREG"(sp)\n"
|
||||
" "REG_L" ra,2*"SZREG"(sp)\n"
|
||||
" addi sp,sp,3*"SZREG"\n"
|
||||
" jr t0\n"
|
||||
" .size my_tramp1, .-my_tramp1\n"
|
||||
|
||||
" .type my_tramp2, @function\n"
|
||||
" .globl my_tramp2\n"
|
||||
" my_tramp2:\n"
|
||||
" addi sp,sp,-3*"SZREG"\n"
|
||||
" "REG_S" a0,0*"SZREG"(sp)\n"
|
||||
" "REG_S" t0,1*"SZREG"(sp)\n"
|
||||
" "REG_S" ra,2*"SZREG"(sp)\n"
|
||||
" mv a0,t0\n"
|
||||
" call my_direct_func2\n"
|
||||
" "REG_L" a0,0*"SZREG"(sp)\n"
|
||||
" "REG_L" t0,1*"SZREG"(sp)\n"
|
||||
" "REG_L" ra,2*"SZREG"(sp)\n"
|
||||
" addi sp,sp,3*"SZREG"\n"
|
||||
" jr t0\n"
|
||||
" .size my_tramp2, .-my_tramp2\n"
|
||||
" .popsection\n"
|
||||
);
|
||||
|
||||
#endif /* CONFIG_RISCV */
|
||||
|
||||
#ifdef CONFIG_X86_64
|
||||
|
||||
#include <asm/ibt.h>
|
||||
|
@ -17,6 +17,31 @@ void my_direct_func(unsigned long ip)
|
||||
|
||||
extern void my_tramp(void *);
|
||||
|
||||
#ifdef CONFIG_RISCV
|
||||
#include <asm/asm.h>
|
||||
|
||||
asm (
|
||||
" .pushsection .text, \"ax\", @progbits\n"
|
||||
" .type my_tramp, @function\n"
|
||||
" .globl my_tramp\n"
|
||||
" my_tramp:\n"
|
||||
" addi sp,sp,-3*"SZREG"\n"
|
||||
" "REG_S" a0,0*"SZREG"(sp)\n"
|
||||
" "REG_S" t0,1*"SZREG"(sp)\n"
|
||||
" "REG_S" ra,2*"SZREG"(sp)\n"
|
||||
" mv a0,t0\n"
|
||||
" call my_direct_func\n"
|
||||
" "REG_L" a0,0*"SZREG"(sp)\n"
|
||||
" "REG_L" t0,1*"SZREG"(sp)\n"
|
||||
" "REG_L" ra,2*"SZREG"(sp)\n"
|
||||
" addi sp,sp,3*"SZREG"\n"
|
||||
" jr t0\n"
|
||||
" .size my_tramp, .-my_tramp\n"
|
||||
" .popsection\n"
|
||||
);
|
||||
|
||||
#endif /* CONFIG_RISCV */
|
||||
|
||||
#ifdef CONFIG_X86_64
|
||||
|
||||
#include <asm/ibt.h>
|
||||
|
@ -19,6 +19,34 @@ void my_direct_func(struct vm_area_struct *vma, unsigned long address,
|
||||
|
||||
extern void my_tramp(void *);
|
||||
|
||||
#ifdef CONFIG_RISCV
|
||||
#include <asm/asm.h>
|
||||
|
||||
asm (
|
||||
" .pushsection .text, \"ax\", @progbits\n"
|
||||
" .type my_tramp, @function\n"
|
||||
" .globl my_tramp\n"
|
||||
" my_tramp:\n"
|
||||
" addi sp,sp,-5*"SZREG"\n"
|
||||
" "REG_S" a0,0*"SZREG"(sp)\n"
|
||||
" "REG_S" a1,1*"SZREG"(sp)\n"
|
||||
" "REG_S" a2,2*"SZREG"(sp)\n"
|
||||
" "REG_S" t0,3*"SZREG"(sp)\n"
|
||||
" "REG_S" ra,4*"SZREG"(sp)\n"
|
||||
" call my_direct_func\n"
|
||||
" "REG_L" a0,0*"SZREG"(sp)\n"
|
||||
" "REG_L" a1,1*"SZREG"(sp)\n"
|
||||
" "REG_L" a2,2*"SZREG"(sp)\n"
|
||||
" "REG_L" t0,3*"SZREG"(sp)\n"
|
||||
" "REG_L" ra,4*"SZREG"(sp)\n"
|
||||
" addi sp,sp,5*"SZREG"\n"
|
||||
" jr t0\n"
|
||||
" .size my_tramp, .-my_tramp\n"
|
||||
" .popsection\n"
|
||||
);
|
||||
|
||||
#endif /* CONFIG_RISCV */
|
||||
|
||||
#ifdef CONFIG_X86_64
|
||||
|
||||
#include <asm/ibt.h>
|
||||
|
@ -16,6 +16,30 @@ void my_direct_func(struct task_struct *p)
|
||||
|
||||
extern void my_tramp(void *);
|
||||
|
||||
#ifdef CONFIG_RISCV
|
||||
#include <asm/asm.h>
|
||||
|
||||
asm (
|
||||
" .pushsection .text, \"ax\", @progbits\n"
|
||||
" .type my_tramp, @function\n"
|
||||
" .globl my_tramp\n"
|
||||
" my_tramp:\n"
|
||||
" addi sp,sp,-3*"SZREG"\n"
|
||||
" "REG_S" a0,0*"SZREG"(sp)\n"
|
||||
" "REG_S" t0,1*"SZREG"(sp)\n"
|
||||
" "REG_S" ra,2*"SZREG"(sp)\n"
|
||||
" call my_direct_func\n"
|
||||
" "REG_L" a0,0*"SZREG"(sp)\n"
|
||||
" "REG_L" t0,1*"SZREG"(sp)\n"
|
||||
" "REG_L" ra,2*"SZREG"(sp)\n"
|
||||
" addi sp,sp,3*"SZREG"\n"
|
||||
" jr t0\n"
|
||||
" .size my_tramp, .-my_tramp\n"
|
||||
" .popsection\n"
|
||||
);
|
||||
|
||||
#endif /* CONFIG_RISCV */
|
||||
|
||||
#ifdef CONFIG_X86_64
|
||||
|
||||
#include <asm/ibt.h>
|
||||
|
Loading…
Reference in New Issue
Block a user