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authorArnaldo Carvalho de Melo <acme@redhat.com>2018-08-29 17:41:53 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-08-30 15:52:20 -0300
commit403f833d15a33bfd8e50dd79fa8e25fb4aa132f6 (patch)
tree53041672e1b04584fbab072eec53f8ff844e9be5 /tools/perf/include
parentd35b168c3dcdf103c2b2d694ad8513a669781703 (diff)
downloadlinux-403f833d15a33bfd8e50dd79fa8e25fb4aa132f6.tar.bz2
perf bpf: Add linux/socket.h to the headers accessible to bpf proggies
So that we don't have to define sockaddr_storage in the augmented_syscalls.c bpf example when hooking into syscalls needing it, idea is to mimic the system headers. Eventually we probably need to have sys/socket.h, etc. Start by having at least linux/socket.h. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-yhzarcvsjue8pgpvkjhqgioc@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/include')
-rw-r--r--tools/perf/include/bpf/linux/socket.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/tools/perf/include/bpf/linux/socket.h b/tools/perf/include/bpf/linux/socket.h
new file mode 100644
index 000000000000..7f844568dab8
--- /dev/null
+++ b/tools/perf/include/bpf/linux/socket.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_LINUX_SOCKET_H
+#define _UAPI_LINUX_SOCKET_H
+
+/*
+ * Desired design of maximum size and alignment (see RFC2553)
+ */
+#define _K_SS_MAXSIZE 128 /* Implementation specific max size */
+#define _K_SS_ALIGNSIZE (__alignof__ (struct sockaddr *))
+ /* Implementation specific desired alignment */
+
+typedef unsigned short __kernel_sa_family_t;
+
+struct __kernel_sockaddr_storage {
+ __kernel_sa_family_t ss_family; /* address family */
+ /* Following field(s) are implementation specific */
+ char __data[_K_SS_MAXSIZE - sizeof(unsigned short)];
+ /* space to achieve desired size, */
+ /* _SS_MAXSIZE value minus size of ss_family */
+} __attribute__ ((aligned(_K_SS_ALIGNSIZE))); /* force desired alignment */
+
+#define sockaddr_storage __kernel_sockaddr_storage
+
+#endif /* _UAPI_LINUX_SOCKET_H */