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Commit c7054aad authored by Jon Medhurst's avatar Jon Medhurst
Browse files

ARM: kprobes: Add Thumb instruction simulation test cases 



Signed-off-by: default avatarJon Medhurst <tixy@yxit.co.uk>
Acked-by: default avatarNicolas Pitre <nicolas.pitre@linaro.org>
parent a43bc69b

arch/arm/kernel/Makefile

+3 −0
Original line number Diff line number Diff line
@@ -45,6 +45,9 @@ obj-$(CONFIG_KPROBES) += kprobes-arm.o 
endif

obj-$(CONFIG_ARM_KPROBES_TEST)	+= test-kprobes.o

test-kprobes-objs		:= kprobes-test.o

ifdef CONFIG_THUMB2_KERNEL

test-kprobes-objs		+= kprobes-test-thumb.o

endif

obj-$(CONFIG_ATAGS_PROC)	+= atags.o

obj-$(CONFIG_OABI_COMPAT)	+= sys_oabi-compat.o

obj-$(CONFIG_ARM_THUMBEE)	+= thumbee.o

arch/arm/kernel/kprobes-test-thumb.c

0 → 100644
+1187 −0

File added.

Preview size limit exceeded, changes collapsed.

arch/arm/kernel/kprobes-test.c

+25 −0
Original line number Diff line number Diff line
@@ -1117,6 +1117,15 @@ static uintptr_t __used kprobes_test_case_end(void) 
 * Top level test functions

 */



static int run_test_cases(void (*tests)(void))

{

	pr_info("    Run test cases\n");

	tests();



	return 0;

}





static int __init run_all_tests(void)

{

	int ret = 0;
@@ -1147,8 +1156,24 @@ static int __init run_all_tests(void) 
	if (ret)

		goto out;



	pr_info("16-bit Thumb instruction simulation\n");

	ret = run_test_cases(kprobe_thumb16_test_cases);

	if (ret)

		goto out;



	pr_info("32-bit Thumb instruction simulation\n");

	ret = run_test_cases(kprobe_thumb32_test_cases);

	if (ret)

		goto out;

#endif



	pr_info("Total instruction simulation tests=%d, pass=%d fail=%d\n",

		test_try_count, test_pass_count, test_fail_count);

	if (test_fail_count) {

		ret = -EINVAL;

		goto out;

	}



out:

	if (ret == 0)

		pr_info("Finished kprobe tests OK\n");

arch/arm/kernel/kprobes-test.h

+6 −0
Original line number Diff line number Diff line
@@ -382,3 +382,9 @@ struct test_arg_end { 
#define VALR	0xdeaddead

#define HH1	0x0123fecb

#define HH2	0xa9874567





#ifdef CONFIG_THUMB2_KERNEL

void kprobe_thumb16_test_cases(void);

void kprobe_thumb32_test_cases(void);

#endif