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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-08-05 16:54:27 +00:00
f6109fb6f5
And make builtin-trace.c less conditional. Dummy functions will be called when BUILD_BPF_SKEL=0 is used. This makes the builtin-trace.c slightly smaller and simpler by removing the skeleton and its helpers. The conditional guard of trace__init_syscalls_bpf_prog_array_maps() is changed from the HAVE_BPF_SKEL to HAVE_LIBBPF_SUPPORT as it doesn't have a skeleton in the code directly. And a dummy function is added so that it can be called unconditionally. The function will succeed only if the both conditions are true. Do not include trace_augment.h from the BPF code and move the definition of TRACE_AUG_MAX_BUF to the BPF directly. Reviewed-by: Howard Chu <howardchu95@gmail.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Link: https://lore.kernel.org/r/20250623225721.21553-1-namhyung@kernel.org Signed-off-by: Namhyung Kim <namhyung@kernel.org>
66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
#ifndef TRACE_AUGMENT_H
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#define TRACE_AUGMENT_H
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#include <linux/compiler.h>
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struct bpf_program;
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struct evlist;
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#ifdef HAVE_BPF_SKEL
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int augmented_syscalls__prepare(void);
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int augmented_syscalls__create_bpf_output(struct evlist *evlist);
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void augmented_syscalls__setup_bpf_output(void);
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int augmented_syscalls__set_filter_pids(unsigned int nr, pid_t *pids);
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int augmented_syscalls__get_map_fds(int *enter_fd, int *exit_fd, int *beauty_fd);
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struct bpf_program *augmented_syscalls__find_by_title(const char *name);
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struct bpf_program *augmented_syscalls__unaugmented(void);
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void augmented_syscalls__cleanup(void);
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#else /* !HAVE_BPF_SKEL */
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static inline int augmented_syscalls__prepare(void)
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{
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return -1;
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}
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static inline int augmented_syscalls__create_bpf_output(struct evlist *evlist __maybe_unused)
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{
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return -1;
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}
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static inline void augmented_syscalls__setup_bpf_output(void)
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{
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}
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static inline int augmented_syscalls__set_filter_pids(unsigned int nr __maybe_unused,
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pid_t *pids __maybe_unused)
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{
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return 0;
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}
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static inline int augmented_syscalls__get_map_fds(int *enter_fd __maybe_unused,
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int *exit_fd __maybe_unused,
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int *beauty_fd __maybe_unused)
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{
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return -1;
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}
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static inline struct bpf_program *
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augmented_syscalls__find_by_title(const char *name __maybe_unused)
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{
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return NULL;
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}
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static inline struct bpf_program *augmented_syscalls__unaugmented(void)
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{
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return NULL;
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}
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static inline void augmented_syscalls__cleanup(void)
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{
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}
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#endif /* HAVE_BPF_SKEL */
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#endif
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