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authorAndrii Nakryiko <[email protected]>2020-02-29 23:11:10 +0000
committerAlexei Starovoitov <[email protected]>2020-03-03 00:25:14 +0000
commitfd56e0058412fb542db0e9556f425747cf3f8366 (patch)
treefa11ac72a2bc294ab41dad229bb3142ef5996083 /tools/testing/selftests/bpf/prog_tests/stacktrace_map.c
parentbpftool: Add header guards to generated vmlinux.h (diff)
downloadkernel-fd56e0058412fb542db0e9556f425747cf3f8366.tar.gz
kernel-fd56e0058412fb542db0e9556f425747cf3f8366.zip
libbpf: Fix use of PT_REGS_PARM macros with vmlinux.h
Add detection of vmlinux.h to bpf_tracing.h header for PT_REGS macro. Currently, BPF applications have to define __KERNEL__ symbol to use correct definition of struct pt_regs on x86 arch. This is due to different field names under internal kernel vs UAPI conditions. To make this more transparent for users, detect vmlinux.h by checking __VMLINUX_H__ symbol. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
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