From 8d8a64796fdee4e20355c6c12c9cc630a2e7494d Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sun, 10 Jul 2005 16:55:48 -0700
Subject: [PATCH] [SPARC64]: Pass regs and entry/exit boolean to
syscall_trace()
Also fix a bug in 32-bit syscall tracing. We forgot to update
this code when we moved over to the convention that all 32-bit
syscall arguments are zero extended by default.
Signed-off-by: David S. Miller <davem@davemloft.net>
---
arch/sparc64/kernel/entry.S | 14 +++++++++-----
arch/sparc64/kernel/ptrace.c | 4 ++--
arch/sparc64/kernel/sparc64_ksyms.c | 2 +-
arch/sparc64/solaris/entry64.S | 7 +++++--
4 files changed, 17 insertions(+), 10 deletions(-)
diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S
index acc323eef535c2..8b7ed760c50e80 100644
--- a/arch/sparc64/kernel/entry.S
+++ b/arch/sparc64/kernel/entry.S
@@ -1555,8 +1555,9 @@ sys_ptrace: add %sp, PTREGS_OFF, %o0
andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP), %g0
be,pt %icc, rtrap
clr %l6
+ add %sp, PTREGS_OFF, %o0
call syscall_trace
- nop
+ mov 1, %o1
ba,pt %xcc, rtrap
clr %l6
@@ -1640,18 +1641,20 @@ linux_sparc_ni_syscall:
or %l7, %lo(sys_ni_syscall), %l7
linux_syscall_trace32:
+ add %sp, PTREGS_OFF, %o0
call syscall_trace
- nop
+ clr %o1
srl %i0, 0, %o0
- mov %i4, %o4
+ srl %i4, 0, %o4
srl %i1, 0, %o1
srl %i2, 0, %o2
b,pt %xcc, 2f
srl %i3, 0, %o3
linux_syscall_trace:
+ add %sp, PTREGS_OFF, %o0
call syscall_trace
- nop
+ clr %o1
mov %i0, %o0
mov %i1, %o1
mov %i2, %o2
@@ -1755,8 +1758,9 @@ ret_sys_call:
b,pt %xcc, rtrap
stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC]
linux_syscall_trace2:
+ add %sp, PTREGS_OFF, %o0
call syscall_trace
- nop
+ mov 1, %o1
stx %l1, [%sp + PTREGS_OFF + PT_V9_TPC]
ba,pt %xcc, rtrap
stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC]
diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c
index 5abf596f5964c9..c57dc9ea731bcd 100644
--- a/arch/sparc64/kernel/ptrace.c
+++ b/arch/sparc64/kernel/ptrace.c
@@ -628,10 +628,10 @@ out:
unlock_kernel();
}
-asmlinkage void syscall_trace(void)
+asmlinkage void syscall_trace(struct pt_regs *regs, int syscall_exit_p)
{
/* do the secure computing check first */
- secure_computing(current_thread_info()->kregs->u_regs[UREG_G1]);
+ secure_computing(regs->u_regs[UREG_G1]);
if (!test_thread_flag(TIF_SYSCALL_TRACE))
return;
diff --git a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c
index 56cd96f4a5cdbd..9202d925a9ce69 100644
--- a/arch/sparc64/kernel/sparc64_ksyms.c
+++ b/arch/sparc64/kernel/sparc64_ksyms.c
@@ -79,7 +79,7 @@ extern void linux_sparc_syscall(void);
extern void rtrap(void);
extern void show_regs(struct pt_regs *);
extern void solaris_syscall(void);
-extern void syscall_trace(void);
+extern void syscall_trace(struct pt_regs *, int);
extern u32 sunos_sys_table[], sys_call_table32[];
extern void tl0_solaris(void);
extern void sys_sigsuspend(void);
diff --git a/arch/sparc64/solaris/entry64.S b/arch/sparc64/solaris/entry64.S
index 0cc9dad75c5e7a..4b6ae583c0a3ec 100644
--- a/arch/sparc64/solaris/entry64.S
+++ b/arch/sparc64/solaris/entry64.S
@@ -24,8 +24,9 @@
.text
solaris_syscall_trace:
+ add %sp, PTREGS_OFF, %o0
call syscall_trace
- nop
+ mov 0, %o1
srl %i0, 0, %o0
mov %i4, %o4
srl %i1, 0, %o1
@@ -159,8 +160,10 @@ ret_from_solaris:
stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC] !npc = npc+4
solaris_syscall_trace2:
+ add %sp, PTREGS_OFF, %o0
call syscall_trace
- add %l1, 0x4, %l2 /* npc = npc+4 */
+ mov 1, %o1
+ add %l1, 0x4, %l2 /* npc = npc+4 */
andcc %l1, 1, %g0
bne,pn %icc, 2b
nop
--
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