about summary refs log tree commit diff
path: root/ports/sysdeps/arm
diff options
context:
space:
mode:
authorRoland McGrath <roland@hack.frob.com>2012-08-09 11:51:05 -0700
committerRoland McGrath <roland@hack.frob.com>2012-08-09 11:51:05 -0700
commit6dcf80c78273c5e0bdcacaf64a9b34fd930b405f (patch)
tree138a528681e4d4cdce232291db14a58a91215004 /ports/sysdeps/arm
parenta4ca51951804c14a5a8e331747649ca767bd8524 (diff)
downloadglibc-6dcf80c78273c5e0bdcacaf64a9b34fd930b405f.tar.gz
glibc-6dcf80c78273c5e0bdcacaf64a9b34fd930b405f.tar.xz
glibc-6dcf80c78273c5e0bdcacaf64a9b34fd930b405f.zip
Avoid VFP HWCAP check in setjmp/longjmp and getcontext/setcontext when compiled without __SOFTFP__ defined.
Diffstat (limited to 'ports/sysdeps/arm')
-rw-r--r--ports/sysdeps/arm/__longjmp.S29
-rw-r--r--ports/sysdeps/arm/setjmp.S24
2 files changed, 28 insertions, 25 deletions
diff --git a/ports/sysdeps/arm/__longjmp.S b/ports/sysdeps/arm/__longjmp.S
index cc802c15bd..aa5cf74ad0 100644
--- a/ports/sysdeps/arm/__longjmp.S
+++ b/ports/sysdeps/arm/__longjmp.S
@@ -1,6 +1,5 @@
 /* longjmp for ARM.
-   Copyright (C) 1997, 1998, 2005, 2006, 2009, 2010
-     Free Software Foundation, Inc.
+   Copyright (C) 1997-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -48,26 +47,28 @@ ENTRY (__longjmp)
 	cfi_restore (lr)
 
 #ifdef IS_IN_rtld
-  	ldr	a2, 1f
-	ldr	a3, Lrtld_local_ro
+	ldr	a2, 1f
+	ldr	a3, .Lrtld_local_ro
 0:	add	a2, pc, a2
 	add	a2, a2, a3
 	ldr	a2, [a2, #RTLD_GLOBAL_RO_DL_HWCAP_OFFSET]
 #else
 #ifdef PIC
-  	ldr	a2, 1f
-	ldr	a3, Lrtld_global_ro
+	ldr	a2, 1f
+	ldr	a3, .Lrtld_global_ro
 0:	add	a2, pc, a2
 	ldr	a2, [a2, a3]
 	ldr	a2, [a2, #RTLD_GLOBAL_RO_DL_HWCAP_OFFSET]
 #else
-	ldr	a2, Lhwcap
+	ldr	a2, .Lhwcap
 	ldr	a2, [a2, #0]
 #endif
 #endif
 
+#ifdef __SOFTFP__
 	tst	a2, #HWCAP_ARM_VFP
-	beq	Lno_vfp
+	beq	.Lno_vfp
+#endif
 
 	/* Restore the VFP registers.  */
 	/* Following instruction is vldmia ip!, {d8-d15}.  */
@@ -76,10 +77,10 @@ ENTRY (__longjmp)
 	ldr     a3, [ip], #4
 	/* Following instruction is fmxr fpscr, a3.  */
 	mcr	p10, 7, a3, cr1, cr0, 0
-Lno_vfp:
+.Lno_vfp:
 
 	tst	a2, #HWCAP_ARM_IWMMXT
-	beq	Lno_iwmmxt
+	beq	.Lno_iwmmxt
 
 	/* Restore the call-preserved iWMMXt registers.  */
 	/* Following instructions are wldrd wr10, [ip], #8 (etc.)  */
@@ -89,21 +90,21 @@ Lno_vfp:
 	ldcl	p1, cr13, [r12], #8
 	ldcl	p1, cr14, [r12], #8
 	ldcl	p1, cr15, [r12], #8
-Lno_iwmmxt:
+.Lno_iwmmxt:
 
 	DO_RET(lr)
 
 #ifdef IS_IN_rtld
 1:	.long	_GLOBAL_OFFSET_TABLE_ - 0b - 8
-Lrtld_local_ro:
+.Lrtld_local_ro:
 	.long	C_SYMBOL_NAME(_rtld_local_ro)(GOTOFF)
 #else
 #ifdef PIC
 1:	.long	_GLOBAL_OFFSET_TABLE_ - 0b - 8
-Lrtld_global_ro:
+.Lrtld_global_ro:
 	.long	C_SYMBOL_NAME(_rtld_global_ro)(GOT)
 #else
-Lhwcap:
+.Lhwcap:
 	.long	C_SYMBOL_NAME(_dl_hwcap)
 #endif
 #endif
diff --git a/ports/sysdeps/arm/setjmp.S b/ports/sysdeps/arm/setjmp.S
index 5e3f39cc75..9bfacc1ab4 100644
--- a/ports/sysdeps/arm/setjmp.S
+++ b/ports/sysdeps/arm/setjmp.S
@@ -1,5 +1,5 @@
 /* setjmp for ARM.
-   Copyright (C) 1997, 1998, 2005, 2006, 2008 Free Software Foundation, Inc.
+   Copyright (C) 1997-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -31,25 +31,27 @@ ENTRY (__sigsetjmp)
 	/* Check if we have a VFP unit.  */
 #ifdef IS_IN_rtld
 	ldr	a3, 1f
-	ldr	a4, Lrtld_local_ro
+	ldr	a4, .Lrtld_local_ro
 0:	add	a3, pc, a3
 	add	a3, a3, a4
 	ldr	a3, [a3, #RTLD_GLOBAL_RO_DL_HWCAP_OFFSET]
 #else
 #ifdef PIC
 	ldr	a3, 1f
-	ldr	a4, Lrtld_global_ro
+	ldr	a4, .Lrtld_global_ro
 0:	add	a3, pc, a3
 	ldr	a3, [a3, a4]
 	ldr	a3, [a3, #RTLD_GLOBAL_RO_DL_HWCAP_OFFSET]
 #else
-	ldr	a3, Lhwcap
+	ldr	a3, .Lhwcap
 	ldr	a3, [a3, #0]
 #endif
 #endif
 
+#ifdef __SOFTFP__
 	tst	a3, #HWCAP_ARM_VFP
-	beq	Lno_vfp
+	beq	.Lno_vfp
+#endif
 
 	/* Store the VFP registers.
 	   Don't use VFP instructions directly because this code
@@ -60,10 +62,10 @@ ENTRY (__sigsetjmp)
 	/* Following instruction is vmrs a4, fpscr.  */
 	mrc	p10, 7, a4, cr1, cr0, 0
 	str	a4, [ip], #4
-Lno_vfp:
+.Lno_vfp:
 
 	tst	a3, #HWCAP_ARM_IWMMXT
-	beq	Lno_iwmmxt
+	beq	.Lno_iwmmxt
 
 	/* Save the call-preserved iWMMXt registers.  */
 	/* Following instructions are wstrd wr10, [ip], #8 (etc.)  */
@@ -73,22 +75,22 @@ Lno_vfp:
 	stcl	p1, cr13, [r12], #8
 	stcl	p1, cr14, [r12], #8
 	stcl	p1, cr15, [r12], #8
-Lno_iwmmxt:
+.Lno_iwmmxt:
 
 	/* Make a tail call to __sigjmp_save; it takes the same args.  */
 	B	PLTJMP(C_SYMBOL_NAME(__sigjmp_save))
 
 #ifdef IS_IN_rtld
 1:	.long	_GLOBAL_OFFSET_TABLE_ - 0b - 8
-Lrtld_local_ro:
+.Lrtld_local_ro:
 	.long	C_SYMBOL_NAME(_rtld_local_ro)(GOTOFF)
 #else
 #ifdef PIC
 1:	.long	_GLOBAL_OFFSET_TABLE_ - 0b - 8
-Lrtld_global_ro:
+.Lrtld_global_ro:
 	.long	C_SYMBOL_NAME(_rtld_global_ro)(GOT)
 #else
-Lhwcap:
+.Lhwcap:
 	.long	C_SYMBOL_NAME(_dl_hwcap)
 #endif
 #endif