Commit de1c2680 authored by Yonghong Song's avatar Yonghong Song Committed by Alexei Starovoitov
Browse files

selftests/bpf: Add unit tests for new sdiv/smod insns 



Add unit tests for sdiv/smod insns.

Signed-off-by: default avatarYonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20230728011321.3720500-1-yonghong.song@linux.dev


Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent 79dbabc1

tools/testing/selftests/bpf/prog_tests/verifier.c

+2 −0
Original line number Diff line number Diff line
@@ -54,6 +54,7 @@ 
#include "verifier_ringbuf.skel.h"

#include "verifier_runtime_jit.skel.h"

#include "verifier_scalar_ids.skel.h"

#include "verifier_sdiv.skel.h"

#include "verifier_search_pruning.skel.h"

#include "verifier_sock.skel.h"

#include "verifier_spill_fill.skel.h"
@@ -159,6 +160,7 @@ void test_verifier_regalloc(void) { RUN(verifier_regalloc); } 
void test_verifier_ringbuf(void)              { RUN(verifier_ringbuf); }

void test_verifier_runtime_jit(void)          { RUN(verifier_runtime_jit); }

void test_verifier_scalar_ids(void)           { RUN(verifier_scalar_ids); }

void test_verifier_sdiv(void)                 { RUN(verifier_sdiv); }

void test_verifier_search_pruning(void)       { RUN(verifier_search_pruning); }

void test_verifier_sock(void)                 { RUN(verifier_sock); }

void test_verifier_spill_fill(void)           { RUN(verifier_spill_fill); }

tools/testing/selftests/bpf/progs/verifier_sdiv.c

0 → 100644
+781 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0



#include <linux/bpf.h>

#include <bpf/bpf_helpers.h>

#include "bpf_misc.h"



#if defined(__TARGET_ARCH_x86) && __clang_major__ >= 18



SEC("socket")

__description("SDIV32, non-zero imm divisor, check 1")

__success __success_unpriv __retval(-20)

__naked void sdiv32_non_zero_imm_1(void)

{

	asm volatile ("					\

	w0 = -41;					\

	w0 s/= 2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV32, non-zero imm divisor, check 2")

__success __success_unpriv __retval(-20)

__naked void sdiv32_non_zero_imm_2(void)

{

	asm volatile ("					\

	w0 = 41;					\

	w0 s/= -2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV32, non-zero imm divisor, check 3")

__success __success_unpriv __retval(20)

__naked void sdiv32_non_zero_imm_3(void)

{

	asm volatile ("					\

	w0 = -41;					\

	w0 s/= -2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV32, non-zero imm divisor, check 4")

__success __success_unpriv __retval(-21)

__naked void sdiv32_non_zero_imm_4(void)

{

	asm volatile ("					\

	w0 = -42;					\

	w0 s/= 2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV32, non-zero imm divisor, check 5")

__success __success_unpriv __retval(-21)

__naked void sdiv32_non_zero_imm_5(void)

{

	asm volatile ("					\

	w0 = 42;					\

	w0 s/= -2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV32, non-zero imm divisor, check 6")

__success __success_unpriv __retval(21)

__naked void sdiv32_non_zero_imm_6(void)

{

	asm volatile ("					\

	w0 = -42;					\

	w0 s/= -2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV32, non-zero imm divisor, check 7")

__success __success_unpriv __retval(21)

__naked void sdiv32_non_zero_imm_7(void)

{

	asm volatile ("					\

	w0 = 42;					\

	w0 s/= 2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV32, non-zero imm divisor, check 8")

__success __success_unpriv __retval(20)

__naked void sdiv32_non_zero_imm_8(void)

{

	asm volatile ("					\

	w0 = 41;					\

	w0 s/= 2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV32, non-zero reg divisor, check 1")

__success __success_unpriv __retval(-20)

__naked void sdiv32_non_zero_reg_1(void)

{

	asm volatile ("					\

	w0 = -41;					\

	w1 = 2;						\

	w0 s/= w1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV32, non-zero reg divisor, check 2")

__success __success_unpriv __retval(-20)

__naked void sdiv32_non_zero_reg_2(void)

{

	asm volatile ("					\

	w0 = 41;					\

	w1 = -2;					\

	w0 s/= w1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV32, non-zero reg divisor, check 3")

__success __success_unpriv __retval(20)

__naked void sdiv32_non_zero_reg_3(void)

{

	asm volatile ("					\

	w0 = -41;					\

	w1 = -2;					\

	w0 s/= w1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV32, non-zero reg divisor, check 4")

__success __success_unpriv __retval(-21)

__naked void sdiv32_non_zero_reg_4(void)

{

	asm volatile ("					\

	w0 = -42;					\

	w1 = 2;						\

	w0 s/= w1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV32, non-zero reg divisor, check 5")

__success __success_unpriv __retval(-21)

__naked void sdiv32_non_zero_reg_5(void)

{

	asm volatile ("					\

	w0 = 42;					\

	w1 = -2;					\

	w0 s/= w1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV32, non-zero reg divisor, check 6")

__success __success_unpriv __retval(21)

__naked void sdiv32_non_zero_reg_6(void)

{

	asm volatile ("					\

	w0 = -42;					\

	w1 = -2;					\

	w0 s/= w1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV32, non-zero reg divisor, check 7")

__success __success_unpriv __retval(21)

__naked void sdiv32_non_zero_reg_7(void)

{

	asm volatile ("					\

	w0 = 42;					\

	w1 = 2;						\

	w0 s/= w1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV32, non-zero reg divisor, check 8")

__success __success_unpriv __retval(20)

__naked void sdiv32_non_zero_reg_8(void)

{

	asm volatile ("					\

	w0 = 41;					\

	w1 = 2;						\

	w0 s/= w1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV64, non-zero imm divisor, check 1")

__success __success_unpriv __retval(-20)

__naked void sdiv64_non_zero_imm_1(void)

{

	asm volatile ("					\

	r0 = -41;					\

	r0 s/= 2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV64, non-zero imm divisor, check 2")

__success __success_unpriv __retval(-20)

__naked void sdiv64_non_zero_imm_2(void)

{

	asm volatile ("					\

	r0 = 41;					\

	r0 s/= -2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV64, non-zero imm divisor, check 3")

__success __success_unpriv __retval(20)

__naked void sdiv64_non_zero_imm_3(void)

{

	asm volatile ("					\

	r0 = -41;					\

	r0 s/= -2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV64, non-zero imm divisor, check 4")

__success __success_unpriv __retval(-21)

__naked void sdiv64_non_zero_imm_4(void)

{

	asm volatile ("					\

	r0 = -42;					\

	r0 s/= 2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV64, non-zero imm divisor, check 5")

__success __success_unpriv __retval(-21)

__naked void sdiv64_non_zero_imm_5(void)

{

	asm volatile ("					\

	r0 = 42;					\

	r0 s/= -2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV64, non-zero imm divisor, check 6")

__success __success_unpriv __retval(21)

__naked void sdiv64_non_zero_imm_6(void)

{

	asm volatile ("					\

	r0 = -42;					\

	r0 s/= -2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV64, non-zero reg divisor, check 1")

__success __success_unpriv __retval(-20)

__naked void sdiv64_non_zero_reg_1(void)

{

	asm volatile ("					\

	r0 = -41;					\

	r1 = 2;						\

	r0 s/= r1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV64, non-zero reg divisor, check 2")

__success __success_unpriv __retval(-20)

__naked void sdiv64_non_zero_reg_2(void)

{

	asm volatile ("					\

	r0 = 41;					\

	r1 = -2;					\

	r0 s/= r1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV64, non-zero reg divisor, check 3")

__success __success_unpriv __retval(20)

__naked void sdiv64_non_zero_reg_3(void)

{

	asm volatile ("					\

	r0 = -41;					\

	r1 = -2;					\

	r0 s/= r1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV64, non-zero reg divisor, check 4")

__success __success_unpriv __retval(-21)

__naked void sdiv64_non_zero_reg_4(void)

{

	asm volatile ("					\

	r0 = -42;					\

	r1 = 2;						\

	r0 s/= r1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV64, non-zero reg divisor, check 5")

__success __success_unpriv __retval(-21)

__naked void sdiv64_non_zero_reg_5(void)

{

	asm volatile ("					\

	r0 = 42;					\

	r1 = -2;					\

	r0 s/= r1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV64, non-zero reg divisor, check 6")

__success __success_unpriv __retval(21)

__naked void sdiv64_non_zero_reg_6(void)

{

	asm volatile ("					\

	r0 = -42;					\

	r1 = -2;					\

	r0 s/= r1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD32, non-zero imm divisor, check 1")

__success __success_unpriv __retval(-1)

__naked void smod32_non_zero_imm_1(void)

{

	asm volatile ("					\

	w0 = -41;					\

	w0 s%%= 2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD32, non-zero imm divisor, check 2")

__success __success_unpriv __retval(1)

__naked void smod32_non_zero_imm_2(void)

{

	asm volatile ("					\

	w0 = 41;					\

	w0 s%%= -2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD32, non-zero imm divisor, check 3")

__success __success_unpriv __retval(-1)

__naked void smod32_non_zero_imm_3(void)

{

	asm volatile ("					\

	w0 = -41;					\

	w0 s%%= -2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD32, non-zero imm divisor, check 4")

__success __success_unpriv __retval(0)

__naked void smod32_non_zero_imm_4(void)

{

	asm volatile ("					\

	w0 = -42;					\

	w0 s%%= 2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD32, non-zero imm divisor, check 5")

__success __success_unpriv __retval(0)

__naked void smod32_non_zero_imm_5(void)

{

	asm volatile ("					\

	w0 = 42;					\

	w0 s%%= -2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD32, non-zero imm divisor, check 6")

__success __success_unpriv __retval(0)

__naked void smod32_non_zero_imm_6(void)

{

	asm volatile ("					\

	w0 = -42;					\

	w0 s%%= -2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD32, non-zero reg divisor, check 1")

__success __success_unpriv __retval(-1)

__naked void smod32_non_zero_reg_1(void)

{

	asm volatile ("					\

	w0 = -41;					\

	w1 = 2;						\

	w0 s%%= w1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD32, non-zero reg divisor, check 2")

__success __success_unpriv __retval(1)

__naked void smod32_non_zero_reg_2(void)

{

	asm volatile ("					\

	w0 = 41;					\

	w1 = -2;					\

	w0 s%%= w1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD32, non-zero reg divisor, check 3")

__success __success_unpriv __retval(-1)

__naked void smod32_non_zero_reg_3(void)

{

	asm volatile ("					\

	w0 = -41;					\

	w1 = -2;					\

	w0 s%%= w1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD32, non-zero reg divisor, check 4")

__success __success_unpriv __retval(0)

__naked void smod32_non_zero_reg_4(void)

{

	asm volatile ("					\

	w0 = -42;					\

	w1 = 2;						\

	w0 s%%= w1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD32, non-zero reg divisor, check 5")

__success __success_unpriv __retval(0)

__naked void smod32_non_zero_reg_5(void)

{

	asm volatile ("					\

	w0 = 42;					\

	w1 = -2;					\

	w0 s%%= w1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD32, non-zero reg divisor, check 6")

__success __success_unpriv __retval(0)

__naked void smod32_non_zero_reg_6(void)

{

	asm volatile ("					\

	w0 = -42;					\

	w1 = -2;					\

	w0 s%%= w1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD64, non-zero imm divisor, check 1")

__success __success_unpriv __retval(-1)

__naked void smod64_non_zero_imm_1(void)

{

	asm volatile ("					\

	r0 = -41;					\

	r0 s%%= 2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD64, non-zero imm divisor, check 2")

__success __success_unpriv __retval(1)

__naked void smod64_non_zero_imm_2(void)

{

	asm volatile ("					\

	r0 = 41;					\

	r0 s%%= -2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD64, non-zero imm divisor, check 3")

__success __success_unpriv __retval(-1)

__naked void smod64_non_zero_imm_3(void)

{

	asm volatile ("					\

	r0 = -41;					\

	r0 s%%= -2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD64, non-zero imm divisor, check 4")

__success __success_unpriv __retval(0)

__naked void smod64_non_zero_imm_4(void)

{

	asm volatile ("					\

	r0 = -42;					\

	r0 s%%= 2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD64, non-zero imm divisor, check 5")

__success __success_unpriv __retval(-0)

__naked void smod64_non_zero_imm_5(void)

{

	asm volatile ("					\

	r0 = 42;					\

	r0 s%%= -2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD64, non-zero imm divisor, check 6")

__success __success_unpriv __retval(0)

__naked void smod64_non_zero_imm_6(void)

{

	asm volatile ("					\

	r0 = -42;					\

	r0 s%%= -2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD64, non-zero imm divisor, check 7")

__success __success_unpriv __retval(0)

__naked void smod64_non_zero_imm_7(void)

{

	asm volatile ("					\

	r0 = 42;					\

	r0 s%%= 2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD64, non-zero imm divisor, check 8")

__success __success_unpriv __retval(1)

__naked void smod64_non_zero_imm_8(void)

{

	asm volatile ("					\

	r0 = 41;					\

	r0 s%%= 2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD64, non-zero reg divisor, check 1")

__success __success_unpriv __retval(-1)

__naked void smod64_non_zero_reg_1(void)

{

	asm volatile ("					\

	r0 = -41;					\

	r1 = 2;						\

	r0 s%%= r1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD64, non-zero reg divisor, check 2")

__success __success_unpriv __retval(1)

__naked void smod64_non_zero_reg_2(void)

{

	asm volatile ("					\

	r0 = 41;					\

	r1 = -2;					\

	r0 s%%= r1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD64, non-zero reg divisor, check 3")

__success __success_unpriv __retval(-1)

__naked void smod64_non_zero_reg_3(void)

{

	asm volatile ("					\

	r0 = -41;					\

	r1 = -2;					\

	r0 s%%= r1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD64, non-zero reg divisor, check 4")

__success __success_unpriv __retval(0)

__naked void smod64_non_zero_reg_4(void)

{

	asm volatile ("					\

	r0 = -42;					\

	r1 = 2;						\

	r0 s%%= r1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD64, non-zero reg divisor, check 5")

__success __success_unpriv __retval(0)

__naked void smod64_non_zero_reg_5(void)

{

	asm volatile ("					\

	r0 = 42;					\

	r1 = -2;					\

	r0 s%%= r1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD64, non-zero reg divisor, check 6")

__success __success_unpriv __retval(0)

__naked void smod64_non_zero_reg_6(void)

{

	asm volatile ("					\

	r0 = -42;					\

	r1 = -2;					\

	r0 s%%= r1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD64, non-zero reg divisor, check 7")

__success __success_unpriv __retval(0)

__naked void smod64_non_zero_reg_7(void)

{

	asm volatile ("					\

	r0 = 42;					\

	r1 = 2;						\

	r0 s%%= r1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD64, non-zero reg divisor, check 8")

__success __success_unpriv __retval(1)

__naked void smod64_non_zero_reg_8(void)

{

	asm volatile ("					\

	r0 = 41;					\

	r1 = 2;						\

	r0 s%%= r1;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV32, zero divisor")

__success __success_unpriv __retval(0)

__naked void sdiv32_zero_divisor(void)

{

	asm volatile ("					\

	w0 = 42;					\

	w1 = 0;						\

	w2 = -1;					\

	w2 s/= w1;					\

	w0 = w2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SDIV64, zero divisor")

__success __success_unpriv __retval(0)

__naked void sdiv64_zero_divisor(void)

{

	asm volatile ("					\

	r0 = 42;					\

	r1 = 0;						\

	r2 = -1;					\

	r2 s/= r1;					\

	r0 = r2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD32, zero divisor")

__success __success_unpriv __retval(-1)

__naked void smod32_zero_divisor(void)

{

	asm volatile ("					\

	w0 = 42;					\

	w1 = 0;						\

	w2 = -1;					\

	w2 s%%= w1;					\

	w0 = w2;					\

	exit;						\

"	::: __clobber_all);

}



SEC("socket")

__description("SMOD64, zero divisor")

__success __success_unpriv __retval(-1)

__naked void smod64_zero_divisor(void)

{

	asm volatile ("					\

	r0 = 42;					\

	r1 = 0;						\

	r2 = -1;					\

	r2 s%%= r1;					\

	r0 = r2;					\

	exit;						\

"	::: __clobber_all);

}



#else



SEC("socket")

__description("cpuv4 is not supported by compiler or jit, use a dummy test")

__success

int dummy_test(void)

{

	return 0;

}



#endif



char _license[] SEC("license") = "GPL";