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authorLluís Vilanova2016-06-21 15:52:04 +0200
committerStefan Hajnoczi2016-06-28 22:14:12 +0200
commit9c15e70086f3343bd810c6150d92ebfd6f346fcf (patch)
treebdd17dcf3a603d844b208038f333f0bf8de6fe6f /trace-events
parenttrace: enable tracing in qemu-img (diff)
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trace: [*-user] Add events to trace guest syscalls in syscall emulation mode
Adds two events to trace syscalls in syscall emulation mode (*-user): * guest_user_syscall: Emitted before the syscall is emulated; contains the syscall number and arguments. * guest_user_syscall_ret: Emitted after the syscall is emulated; contains the syscall number and return value. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Message-id: 146651712411.12388.10024905980452504938.stgit@fimbulvetr.bsc.es Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'trace-events')
-rw-r--r--trace-events16
1 files changed, 16 insertions, 0 deletions
diff --git a/trace-events b/trace-events
index 9d76de8574..476705996b 100644
--- a/trace-events
+++ b/trace-events
@@ -156,3 +156,19 @@ memory_region_tb_write(int cpu_index, uint64_t addr, uint64_t value, unsigned si
#
# Targets: TCG(all)
disable vcpu tcg guest_mem_before(TCGv vaddr, uint8_t info) "info=%d", "vaddr=0x%016"PRIx64" info=%d"
+
+# @num: System call number.
+# @arg*: System call argument value.
+#
+# Start executing a guest system call in syscall emulation mode.
+#
+# Targets: TCG(all)
+disable vcpu guest_user_syscall(uint64_t num, uint64_t arg1, uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5, uint64_t arg6, uint64_t arg7, uint64_t arg8) "num=0x%016"PRIx64" arg1=0x%016"PRIx64" arg2=0x%016"PRIx64" arg3=0x%016"PRIx64" arg4=0x%016"PRIx64" arg5=0x%016"PRIx64" arg6=0x%016"PRIx64" arg7=0x%016"PRIx64" arg8=0x%016"PRIx64
+
+# @num: System call number.
+# @ret: System call result value.
+#
+# Finish executing a guest system call in syscall emulation mode.
+#
+# Targets: TCG(all)
+disable vcpu guest_user_syscall_ret(uint64_t num, uint64_t ret) "num=0x%016"PRIx64" ret=0x%016"PRIx64