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

Add unit tests for sdiv/smod insns.

Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20230728011321.3720500-1-yonghong.song@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Yonghong Song 2023-07-27 18:13:21 -07:00 committed by Alexei Starovoitov
parent 79dbabc175
commit de1c26809e
2 changed files with 783 additions and 0 deletions
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2
tools/testing/selftests/bpf/prog_tests/verifier.c
View File

@ -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); }

781
tools/testing/selftests/bpf/progs/verifier_sdiv.c Normal file
View File

@ -0,0 +1,781 @@
// 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";