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| author | Roland McGrath <roland@redhat.com> | 2008-07-27 00:30:50 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-07-27 17:28:55 -0700 |
| commit | 73ccefab8a6590bb3d5b44c046010139108ab7ca (patch) | |
| tree | 76b9ebc1fb2bc80b4d01d95a232220ac0012972b /arch/sparc64/kernel/syscalls.S | |
| parent | 5cfc17766685c79d1a348bce24af9c9dbc0d8d67 (diff) | |
| download | lwn-73ccefab8a6590bb3d5b44c046010139108ab7ca.tar.gz lwn-73ccefab8a6590bb3d5b44c046010139108ab7ca.zip | |
sparc64: tracehook syscall
This changes sparc64 syscall tracing to use the new tracehook.h entry
points.
[ Add assembly changes to force an immediate -ENOSYS return from
the system call when syscall_trace() returns non-zero at syscall
entry. -DaveM ]
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/syscalls.S')
| -rw-r--r-- | arch/sparc64/kernel/syscalls.S | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/syscalls.S b/arch/sparc64/kernel/syscalls.S index db19ed67acf6..a2f24270ed8a 100644 --- a/arch/sparc64/kernel/syscalls.S +++ b/arch/sparc64/kernel/syscalls.S @@ -162,6 +162,8 @@ linux_syscall_trace32: add %sp, PTREGS_OFF, %o0 call syscall_trace clr %o1 + brnz,pn %o0, 3f + mov -ENOSYS, %o0 srl %i0, 0, %o0 srl %i4, 0, %o4 srl %i1, 0, %o1 @@ -173,6 +175,8 @@ linux_syscall_trace: add %sp, PTREGS_OFF, %o0 call syscall_trace clr %o1 + brnz,pn %o0, 3f + mov -ENOSYS, %o0 mov %i0, %o0 mov %i1, %o1 mov %i2, %o2 |