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[PATCH 13/26] arm: Store lr in r2 around GET_TLS


Rather than on the stack.
---
	* sysdeps/unix/sysv/linux/arm/nptl/vfork.S (SAVE_PID): Save lr to r2
	around the GET_TLS call.
	* sysdeps/unix/sysv/linux/arm/nptl/pt-vfork.S (SAVE_PID): Likewise.
---
 ports/sysdeps/unix/sysv/linux/arm/nptl/pt-vfork.S | 8 +++-----
 ports/sysdeps/unix/sysv/linux/arm/nptl/vfork.S    | 8 +++-----
 2 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/ports/sysdeps/unix/sysv/linux/arm/nptl/pt-vfork.S b/ports/sysdeps/unix/sysv/linux/arm/nptl/pt-vfork.S
index bc0a771..cd51122 100644
--- a/ports/sysdeps/unix/sysv/linux/arm/nptl/pt-vfork.S
+++ b/ports/sysdeps/unix/sysv/linux/arm/nptl/pt-vfork.S
@@ -19,12 +19,10 @@
 
 /* Save the PID value.  */
 #define SAVE_PID \
-	str	lr, [sp, #-4]!;		/* Save LR.  */			\
-	cfi_adjust_cfa_offset (4);					\
-	cfi_rel_offset (lr, 0);						\
+	mov	r2, lr;			/* Save LR.  */			\
+	cfi_register (lr, r2);						\
 	GET_TLS;							\
-	ldr	lr, [sp], #4;		/* Restore LR.  */		\
-	cfi_adjust_cfa_offset (-4);					\
+	mov	lr, r2;			/* Restore LR.  */		\
 	cfi_restore (lr);						\
 	NEGOFF_ADJ_BASE2(r2, r0, PID_OFFSET); /* Save the TLS addr in r2. */ \
 	ldr	r3, NEGOFF_OFF1(r2, PID_OFFSET); /* Load the saved PID.  */  \
diff --git a/ports/sysdeps/unix/sysv/linux/arm/nptl/vfork.S b/ports/sysdeps/unix/sysv/linux/arm/nptl/vfork.S
index 3c0ef78..4007081 100644
--- a/ports/sysdeps/unix/sysv/linux/arm/nptl/vfork.S
+++ b/ports/sysdeps/unix/sysv/linux/arm/nptl/vfork.S
@@ -19,12 +19,10 @@
 
 /* Save the PID value.  */
 #define SAVE_PID \
-	str	lr, [sp, #-4]!;		/* Save LR.  */			\
-	cfi_adjust_cfa_offset (4);					\
-	cfi_rel_offset (lr, 0);						\
+	mov	r2, lr;			/* Save LR.  */			\
+	cfi_register (lr, r2);						\
 	GET_TLS;							\
-	ldr	lr, [sp], #4;		/* Restore LR.  */		\
-	cfi_adjust_cfa_offset (-4);					\
+	mov	lr, r2;			/* Restore LR.  */		\
 	cfi_restore (lr);						\
 	NEGOFF_ADJ_BASE2(r2, r0, PID_OFFSET); /* Save the TLS addr in r2.  */ \
 	ldr	r3, NEGOFF_OFF1(r2, PID_OFFSET); /* Load the saved PID.  */   \
-- 
1.8.1.2


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