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c1eee8d1e8
The fsession is already supported by x86_64, arm64, riscv and s390, so we don't need to disable it in the compile time according to the architecture. Factor out the testings for it. Therefore, the testing can be disabled for the architecture that doesn't support it manually. Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn> Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Link: https://lore.kernel.org/r/20260224092208.1395085-4-dongml2@chinatelecom.cn Signed-off-by: Alexei Starovoitov <ast@kernel.org>
106 lines
2.2 KiB
C
106 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include "vmlinux.h"
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#include <bpf/bpf_helpers.h>
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#include <bpf/bpf_tracing.h>
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char _license[] SEC("license") = "GPL";
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extern int bpf_fentry_test1(int a) __ksym;
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extern int bpf_modify_return_test(int a, int *b) __ksym;
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extern const void bpf_fentry_test2 __ksym;
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extern const void bpf_fentry_test3 __ksym;
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extern const void bpf_fentry_test4 __ksym;
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extern bool CONFIG_X86_KERNEL_IBT __kconfig __weak;
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/* This function is here to have CONFIG_X86_KERNEL_IBT
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* used and added to object BTF.
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*/
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int unused(void)
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{
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return CONFIG_X86_KERNEL_IBT ? 0 : 1;
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}
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__u64 test1_result = 0;
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SEC("fentry/bpf_fentry_test1")
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int BPF_PROG(test1, int a)
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{
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__u64 addr = bpf_get_func_ip(ctx);
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test1_result = (const void *) addr == &bpf_fentry_test1;
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return 0;
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}
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__u64 test2_result = 0;
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SEC("fexit/bpf_fentry_test2")
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int BPF_PROG(test2, int a)
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{
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__u64 addr = bpf_get_func_ip(ctx);
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test2_result = (const void *) addr == &bpf_fentry_test2;
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return 0;
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}
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__u64 test3_result = 0;
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SEC("kprobe/bpf_fentry_test3")
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int test3(struct pt_regs *ctx)
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{
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__u64 addr = bpf_get_func_ip(ctx);
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test3_result = (const void *) addr == &bpf_fentry_test3;
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return 0;
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}
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__u64 test4_result = 0;
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SEC("kretprobe/bpf_fentry_test4")
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int BPF_KRETPROBE(test4)
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{
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__u64 addr = bpf_get_func_ip(ctx);
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test4_result = (const void *) addr == &bpf_fentry_test4;
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return 0;
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}
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__u64 test5_result = 0;
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SEC("fmod_ret/bpf_modify_return_test")
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int BPF_PROG(test5, int a, int *b, int ret)
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{
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__u64 addr = bpf_get_func_ip(ctx);
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test5_result = (const void *) addr == &bpf_modify_return_test;
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return ret;
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}
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__u64 test6_result = 0;
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SEC("?kprobe")
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int test6(struct pt_regs *ctx)
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{
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__u64 addr = bpf_get_func_ip(ctx);
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test6_result = (const void *) addr == 0;
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return 0;
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}
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unsigned long uprobe_trigger;
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__u64 test7_result = 0;
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SEC("uprobe//proc/self/exe:uprobe_trigger")
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int BPF_UPROBE(test7)
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{
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__u64 addr = bpf_get_func_ip(ctx);
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test7_result = (const void *) addr == (const void *) uprobe_trigger;
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return 0;
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}
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__u64 test8_result = 0;
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SEC("uretprobe//proc/self/exe:uprobe_trigger")
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int BPF_URETPROBE(test8, int ret)
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{
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__u64 addr = bpf_get_func_ip(ctx);
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test8_result = (const void *) addr == (const void *) uprobe_trigger;
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return 0;
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}
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