a2777eaad5
Test verifier/const_or.c automatically converted to use inline assembly. Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20230325025524.144043-16-eddyz87@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Converted from tools/testing/selftests/bpf/verifier/const_or.c */
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#include <linux/bpf.h>
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#include <bpf/bpf_helpers.h>
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#include "bpf_misc.h"
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SEC("tracepoint")
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__description("constant register |= constant should keep constant type")
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__success
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__naked void constant_should_keep_constant_type(void)
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{
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asm volatile (" \
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r1 = r10; \
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r1 += -48; \
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r2 = 34; \
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r2 |= 13; \
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r3 = 0; \
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call %[bpf_probe_read_kernel]; \
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exit; \
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" :
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: __imm(bpf_probe_read_kernel)
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: __clobber_all);
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}
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SEC("tracepoint")
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__description("constant register |= constant should not bypass stack boundary checks")
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__failure __msg("invalid indirect access to stack R1 off=-48 size=58")
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__naked void not_bypass_stack_boundary_checks_1(void)
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{
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asm volatile (" \
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r1 = r10; \
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r1 += -48; \
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r2 = 34; \
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r2 |= 24; \
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r3 = 0; \
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call %[bpf_probe_read_kernel]; \
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exit; \
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" :
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: __imm(bpf_probe_read_kernel)
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: __clobber_all);
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}
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SEC("tracepoint")
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__description("constant register |= constant register should keep constant type")
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__success
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__naked void register_should_keep_constant_type(void)
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{
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asm volatile (" \
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r1 = r10; \
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r1 += -48; \
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r2 = 34; \
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r4 = 13; \
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r2 |= r4; \
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r3 = 0; \
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call %[bpf_probe_read_kernel]; \
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exit; \
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" :
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: __imm(bpf_probe_read_kernel)
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: __clobber_all);
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}
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SEC("tracepoint")
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__description("constant register |= constant register should not bypass stack boundary checks")
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__failure __msg("invalid indirect access to stack R1 off=-48 size=58")
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__naked void not_bypass_stack_boundary_checks_2(void)
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{
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asm volatile (" \
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r1 = r10; \
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r1 += -48; \
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r2 = 34; \
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r4 = 24; \
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r2 |= r4; \
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r3 = 0; \
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call %[bpf_probe_read_kernel]; \
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exit; \
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" :
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: __imm(bpf_probe_read_kernel)
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: __clobber_all);
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}
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char _license[] SEC("license") = "GPL";
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