syscall tracing: sys_getcpu

[lttng-modules.git] / instrumentation / syscalls / headers / syscalls_pointers_override.h

diff --git a/instrumentation/syscalls/headers/syscalls_pointers_override.h b/instrumentation/syscalls/headers/syscalls_pointers_override.h
index e464a4ee4e7a9d8f1c8ec3e584196c8ea7576dba..a24c4d315db2c2c6bfa4c11b938865ae64a90c2b 100644 (file)
--- a/instrumentation/syscalls/headers/syscalls_pointers_override.h
+++ b/instrumentation/syscalls/headers/syscalls_pointers_override.h
@@ -1,4 +1,53 @@
-/*
- * This is a place-holder for override defines for system calls with
- * pointers (all architectures).
- */
+#define OVERRIDE_32_sys_execve
+#define OVERRIDE_64_sys_execve
+
+#ifndef CREATE_SYSCALL_TABLE
+
+SC_TRACE_EVENT(sys_execve,
+       TP_PROTO(const char *filename, char *const *argv, char *const *envp),
+       TP_ARGS(filename, argv, envp),
+       TP_STRUCT__entry(__string_from_user(filename, filename)
+               __field_hex(char *const *, argv)
+               __field_hex(char *const *, envp)),
+       TP_fast_assign(tp_copy_string_from_user(filename, filename)
+               tp_assign(argv, argv)
+               tp_assign(envp, envp)),
+       TP_printk()
+)
+
+SC_TRACE_EVENT(sys_clone,
+       TP_PROTO(unsigned long clone_flags, unsigned long newsp,
+               void __user *parent_tid,
+               void __user *child_tid),
+       TP_ARGS(clone_flags, newsp, parent_tid, child_tid),
+       TP_STRUCT__entry(
+               __field_hex(unsigned long, clone_flags)
+               __field_hex(unsigned long, newsp)
+               __field_hex(void *, parent_tid)
+               __field_hex(void *, child_tid)),
+       TP_fast_assign(
+               tp_assign(clone_flags, clone_flags)
+               tp_assign(newsp, newsp)
+               tp_assign(parent_tid, parent_tid)
+               tp_assign(child_tid, child_tid)),
+       TP_printk()
+)
+
+/* present in 32, missing in 64 due to old kernel headers */
+#define OVERRIDE_32_sys_getcpu
+#define OVERRIDE_64_sys_getcpu
+SC_TRACE_EVENT(sys_getcpu,
+       TP_PROTO(unsigned __user *cpup, unsigned __user *nodep, void *tcache),
+       TP_ARGS(cpup, nodep, tcache),
+       TP_STRUCT__entry(
+               __field_hex(unsigned *, cpup)
+               __field_hex(unsigned *, nodep)
+               __field_hex(void *, tcache)),
+       TP_fast_assign(
+               tp_assign(cpup, cpup)
+               tp_assign(nodep, nodep)
+               tp_assign(tcache, tcache)),
+       TP_printk()
+)
+
+#endif /* CREATE_SYSCALL_TABLE */