From: David S. Miller <davem@davemloft.net>
Date: Sun, 10 Jul 2005 23:55:48 +0000 (-0700)
Subject: [SPARC64]: Pass regs and entry/exit boolean to syscall_trace()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=8d8a64796fdee4e20355c6c12c9cc630a2e7494d;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

[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>
---

diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S
index acc323eef53..8b7ed760c50 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 5abf596f596..c57dc9ea731 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 56cd96f4a5c..9202d925a9c 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 0cc9dad75c5..4b6ae583c0a 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