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authorRichard Henderson <rth@twiddle.net>2013-02-13 20:27:09 -0800
committerRichard Henderson <rth@twiddle.net>2013-02-28 00:17:21 -0800
commit6ccd0107f3303732409aadffc3bac0e741f1eac4 (patch)
tree43cc0865030eaaf82e34ad6911554e8dcec3610e /ports/sysdeps/unix/sysv/linux
parent783a65c253b144cd7b500720cf37bbddaf861a03 (diff)
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arm: Add IT insns for thumb mode
These are ignored by the assembler in ARM mode, so by
default this has no effect on generated code.
Diffstat (limited to 'ports/sysdeps/unix/sysv/linux')
-rw-r--r--ports/sysdeps/unix/sysv/linux/arm/clone.S4
-rw-r--r--ports/sysdeps/unix/sysv/linux/arm/mmap.S1
-rw-r--r--ports/sysdeps/unix/sysv/linux/arm/mmap64.S6
-rw-r--r--ports/sysdeps/unix/sysv/linux/arm/syscall.S1
-rw-r--r--ports/sysdeps/unix/sysv/linux/arm/sysdep.h1
-rw-r--r--ports/sysdeps/unix/sysv/linux/arm/vfork.S1
6 files changed, 12 insertions, 2 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/arm/clone.S b/ports/sysdeps/unix/sysv/linux/arm/clone.S
index de25db1609..732a3ffd01 100644
--- a/ports/sysdeps/unix/sysv/linux/arm/clone.S
+++ b/ports/sysdeps/unix/sysv/linux/arm/clone.S
@@ -33,6 +33,7 @@
 ENTRY(__clone)
 	@ sanity check args
 	cmp	r0, #0
+	ite	ne
 	cmpne	r1, #0
 	moveq	r0, #-EINVAL
 	beq	PLTJMP(syscall_error)
@@ -78,8 +79,9 @@ PSEUDO_END (__clone)
 	sub	pc, r0, #31
 	mov	r1, r0
 	tst	ip, #CLONE_VM
-	movne	r0, #-1
 	ldr	r7, =SYS_ify(getpid)
+	ite	ne
+	movne	r0, #-1
 	swieq	0x0
 	str	r0, [r1, #PID_OFFSET]
 	str	r0, [r1, #TID_OFFSET]
diff --git a/ports/sysdeps/unix/sysv/linux/arm/mmap.S b/ports/sysdeps/unix/sysv/linux/arm/mmap.S
index fa8a2b86c8..68560b065e 100644
--- a/ports/sysdeps/unix/sysv/linux/arm/mmap.S
+++ b/ports/sysdeps/unix/sysv/linux/arm/mmap.S
@@ -51,6 +51,7 @@ ENTRY (__mmap)
 	cfi_restore (r5)
 
 	cmn	r0, $4096
+	it	cc
 	RETINSTR(cc, lr)
 	b	PLTJMP(syscall_error)
 
diff --git a/ports/sysdeps/unix/sysv/linux/arm/mmap64.S b/ports/sysdeps/unix/sysv/linux/arm/mmap64.S
index 2eafd1b413..dcbab3aed6 100644
--- a/ports/sysdeps/unix/sysv/linux/arm/mmap64.S
+++ b/ports/sysdeps/unix/sysv/linux/arm/mmap64.S
@@ -17,6 +17,8 @@
 
 #include <sysdep.h>
 
+	.syntax unified
+
 #define	EINVAL		22
 
 #ifdef __ARMEB__
@@ -42,7 +44,8 @@ ENTRY (__mmap64)
 	cfi_remember_state
 	movs	r4, ip, lsl $20		@ check that offset is page-aligned
 	mov	ip, ip, lsr $12
-	moveqs	r4, r5, lsr $12		@ check for overflow
+	it	eq
+	movseq	r4, r5, lsr $12		@ check for overflow
 	bne	.Linval
 	ldr	r4, [sp, $8]		@ load fd
 	orr	r5, ip, r5, lsl $20	@ compose page offset
@@ -52,6 +55,7 @@ ENTRY (__mmap64)
 	cfi_adjust_cfa_offset (-8)
 	cfi_restore (r4)
 	cfi_restore (r5)
+	it	cc
 	RETINSTR(cc, lr)
 	b	PLTJMP(syscall_error)
 
diff --git a/ports/sysdeps/unix/sysv/linux/arm/syscall.S b/ports/sysdeps/unix/sysv/linux/arm/syscall.S
index c6dd57d698..665ecb4de0 100644
--- a/ports/sysdeps/unix/sysv/linux/arm/syscall.S
+++ b/ports/sysdeps/unix/sysv/linux/arm/syscall.S
@@ -42,6 +42,7 @@ ENTRY (syscall)
 	cfi_restore (r6)
 	cfi_restore (r7)
 	cmn	r0, #4096
+	it	cc
 	RETINSTR(cc, lr)
 	b	PLTJMP(syscall_error)
 PSEUDO_END (syscall)
diff --git a/ports/sysdeps/unix/sysv/linux/arm/sysdep.h b/ports/sysdeps/unix/sysv/linux/arm/sysdep.h
index f9b3443c14..f40cb95e87 100644
--- a/ports/sysdeps/unix/sysv/linux/arm/sysdep.h
+++ b/ports/sysdeps/unix/sysv/linux/arm/sysdep.h
@@ -64,6 +64,7 @@
 	cmn	r0, $4096;
 
 #define PSEUDO_RET					\
+	it	cc;					\
 	RETINSTR(cc, lr);				\
 	b	PLTJMP(SYSCALL_ERROR)
 #undef ret
diff --git a/ports/sysdeps/unix/sysv/linux/arm/vfork.S b/ports/sysdeps/unix/sysv/linux/arm/vfork.S
index 4f84c57f22..ae931f79c6 100644
--- a/ports/sysdeps/unix/sysv/linux/arm/vfork.S
+++ b/ports/sysdeps/unix/sysv/linux/arm/vfork.S
@@ -51,6 +51,7 @@ ENTRY (__vfork)
 	RESTORE_PID
 #endif
 	cmn	a1, #4096
+	it	cc
 	RETINSTR(cc, lr)
 
 	b	PLTJMP(SYSCALL_ERROR)