pull from Blackfin repo: cleanup string funcs

7 files changed, 241 insertions, 194 deletions

diff --git a/libc/string/bfin/memchr.S b/libc/string/bfin/memchr.S
index 23626d6a4..c264ad3d1 100644
--- a/libc/string/bfin/memchr.S
+++ b/libc/string/bfin/memchr.S
@@ -1,5 +1,5 @@
 /* memchr.S
- * Copyright (C) 2003, 2005, 2006 Analog Devices Inc., All Rights Reserved.
+ * Copyright (C) 2003-2007 Analog Devices Inc., All Rights Reserved.
  *
  * This file is subject to the terms and conditions of the GNU Library General
  * Public License. See the file "COPYING.LIB" in the main directory of this
@@ -9,6 +9,8 @@
  * http://www.analog.com/processors/resources/crosscore/visualDspDevSoftware.html
  */
 
+#include <sysdep.h>
+
 /* void *memchr(const void *s, int c, size_t n);
  * R0 = address (s)
  * R1 = sought byte (c)
@@ -21,30 +23,28 @@
 
 .align 2
 
-.global _memchr
-.type _memchr, STT_FUNC
-_memchr:
+ENTRY(_memchr)
 	P0 = R0;             // P0 = address
 	P2 = R2;             // P2 = count
 	R1 = R1.B(Z);
 	CC = R2 == 0;
-	IF CC JUMP failed;
+	IF CC JUMP .Lfailed;
 
-bytes:
-	LSETUP (byte_loop_s , byte_loop_e) LC0=P2;
+.Lbytes:
+	LSETUP (.Lbyte_loop_s, .Lbyte_loop_e) LC0=P2;
 
-byte_loop_s:
+.Lbyte_loop_s:
 	R3 = B[P0++](Z);
 	CC = R3 == R1;
-	IF CC JUMP found;
-byte_loop_e:
+	IF CC JUMP .Lfound;
+.Lbyte_loop_e:
 	NOP;
 
-failed:
+.Lfailed:
 	R0=0;
 	RTS;
 
-found:
+.Lfound:
 	R0 = P0;
 	R0 += -1;
 	RTS;
diff --git a/libc/string/bfin/memcmp.S b/libc/string/bfin/memcmp.S
index 117550cdb..b5d4f1c7a 100644
--- a/libc/string/bfin/memcmp.S
+++ b/libc/string/bfin/memcmp.S
@@ -1,5 +1,5 @@
 /* memcmp.S
- * Copyright (C) 2003, 2005, 2006 Analog Devices Inc., All Rights Reserved.
+ * Copyright (C) 2003-2007 Analog Devices Inc., All Rights Reserved.
  *
  * This file is subject to the terms and conditions of the GNU Library General
  * Public License. See the file "COPYING.LIB" in the main directory of this
@@ -9,6 +9,8 @@
  * http://www.analog.com/processors/resources/crosscore/visualDspDevSoftware.html
  */
 
+#include <sysdep.h>
+
 /* int memcmp(const void *s1, const void *s2, size_t n);
  * R0 = First Address (s1)
  * R1 = Second Address (s2)
@@ -17,34 +19,30 @@
  * Favours word aligned data.
  */
 
-#include <features.h>
-
 .text
 
 .align 2
 
-.global _memcmp
-.type _memcmp, STT_FUNC
-_memcmp:
+ENTRY(_memcmp)
 	I1 = P3;
-	P0 = R0;              // P0 = s1 address
-	P3 = R1;              // P3 = s2 Address
-	P2 = R2 ;             // P2 = count
+	P0 = R0;			/* P0 = s1 address */
+	P3 = R1;			/* P3 = s2 Address  */
+	P2 = R2 ;			/* P2 = count */
 	CC = R2 <= 7(IU);
-	IF CC JUMP  too_small;
-	I0 = R1;		    // s2
-	R1 = R1 | R0;         // OR addresses together
-	R1 <<= 30;            // check bottom two bits
-	CC =  AZ;             // AZ set if zero.
-	IF !CC JUMP  bytes ;  // Jump if addrs not aligned.
+	IF CC JUMP .Ltoo_small;
+	I0 = R1;			/* s2 */
+	R1 = R1 | R0;		/* OR addresses together */
+	R1 <<= 30;		/* check bottom two bits */
+	CC =  AZ;			/* AZ set if zero. */
+	IF !CC JUMP .Lbytes ;	/* Jump if addrs not aligned. */
 
-	P1 = P2 >> 2;          // count = n/4
+	P1 = P2 >> 2;		/* count = n/4 */
 	R3 =  3;
-	R2 = R2 & R3;         // remainder
-	P2 = R2;               // set remainder
+	R2 = R2 & R3;		/* remainder */
+	P2 = R2;			/* set remainder */
 
-	LSETUP (quad_loop_s , quad_loop_e) LC0=P1;
-quad_loop_s:
+	LSETUP (.Lquad_loop_s, .Lquad_loop_e) LC0=P1;
+.Lquad_loop_s:
 #if !defined(__WORKAROUND_AVOID_DAG1)
 	MNOP || R0 = [P0++] || R1 = [I0++];
 #else
@@ -52,48 +50,50 @@ quad_loop_s:
 	R1 = [I0++];
 #endif
 	CC = R0 == R1;
-	IF !CC JUMP quad_different;
-quad_loop_e:
+	IF !CC JUMP .Lquad_different;
+.Lquad_loop_e:
 	NOP;
 
-	P3 = I0;                 // s2
-too_small:
-	CC = P2 == 0;            //Check zero count
-	IF CC JUMP finished;     // very unlikely
+	P3 = I0;			/* s2 */
+.Ltoo_small:
+	CC = P2 == 0;		/* Check zero count*/
+	IF CC JUMP .Lfinished;	/* very unlikely*/
 
-bytes:
-	LSETUP (byte_loop_s , byte_loop_e) LC0=P2;
-byte_loop_s:
-	R1 = B[P3++](Z);	// *s2
-	R0 = B[P0++](Z);	// *s1
+.Lbytes:
+	LSETUP (.Lbyte_loop_s, .Lbyte_loop_e) LC0=P2;
+.Lbyte_loop_s:
+	R1 = B[P3++](Z);	/* *s2 */
+	R0 = B[P0++](Z);	/* *s1 */
 	CC = R0 == R1;
-	IF !CC JUMP different;
-byte_loop_e:
+	IF !CC JUMP .Ldifferent;
+.Lbyte_loop_e:
 	NOP;
 
-different:
+.Ldifferent:
 	R0 = R0 - R1;
 	P3 = I1;
 	RTS;
 
-quad_different:
-	// We've read two quads which don't match.
-	// Can't just compare them, because we're
-	// a little-endian machine, so the MSBs of
-	// the regs occur at later addresses in the
-	// string.
-	// Arrange to re-read those two quads again,
-	// byte-by-byte.
-	P0 += -4;	// back up to the start of the
-	P3 = I0;	// quads, and increase the
-	P2 += 4;	// remainder count
+.Lquad_different:
+	/* We've read two quads which don't match.
+	 * Can't just compare them, because we're
+	 * a little-endian machine, so the MSBs of
+	 * the regs occur at later addresses in the
+	 * string.
+	 * Arrange to re-read those two quads again,
+	 * byte-by-byte.
+	 */
+	P0 += -4;		/* back up to the start of the */
+	P3 = I0;		/* quads, and increase the*/
+	P2 += 4;		/* remainder count*/
 	P3 += -4;
-	JUMP bytes;
+	JUMP .Lbytes;
 
-finished:
+.Lfinished:
 	R0 = 0;
 	P3 = I1;
 	RTS;
+
 .size _memcmp,.-_memcmp
 
 libc_hidden_def (memcmp)
diff --git a/libc/string/bfin/memcpy.S b/libc/string/bfin/memcpy.S
index e7ba7048e..ae40cb244 100644
--- a/libc/string/bfin/memcpy.S
+++ b/libc/string/bfin/memcpy.S
@@ -1,5 +1,5 @@
 /* memcpy.S
- * Copyright (C) 2003, 2005, 2006 Analog Devices Inc., All Rights Reserved.
+ * Copyright (C) 2003-2007 Analog Devices Inc., All Rights Reserved.
  *
  * This file is subject to the terms and conditions of the GNU Library General
  * Public License. See the file "COPYING.LIB" in the main directory of this
@@ -9,6 +9,8 @@
  * http://www.analog.com/processors/resources/crosscore/visualDspDevSoftware.html
  */
 
+#include <sysdep.h>
+
 /* void *memcpy(void *dest, const void *src, size_t n);
  * R0 = To Address (dest) (leave unchanged to form result)
  * R1 = From Address (src)
@@ -21,54 +23,60 @@
 
 .align 2
 
-.global _memcpy
-.type _memcpy, STT_FUNC
-_memcpy:
+/* We have to bypass the libc-symbols.h machinery to make sure we get
+ * a weak symbol for memcpy (some crummy gcc tests want to redefine it).
+ */
+.global ___GI_memcpy
+.type ___GI_memcpy, STT_FUNC
+___GI_memcpy:
 	[--SP] = P3;
-	P0 = R0;              // P0 = To address
-	P3 = R1;              // P3 = From Address
-	P2 = R2 ;             // P2 = count
+	P0 = R0;              /* P0 = To address */
+	P3 = R1;              /* P3 = From Address */
+	P2 = R2;              /* P2 = count */
 	CC = R2 <= 7(IU);
-	IF CC JUMP  too_small;
+	IF CC JUMP .Ltoo_small;
 	I0 = R1;
-	R3 = R1 | R0;         // OR addresses together
-	R3 <<= 30;            // check bottom two bits
-	CC =  AZ;             // AZ set if zero.
-	IF !CC JUMP  bytes ;  // Jump if addrs not aligned.
-	P1 = P2 >> 2;         // count = n/4
+	R3 = R1 | R0;         /* OR addresses together */
+	R3 <<= 30;            /* check bottom two bits */
+	CC =  AZ;             /* AZ set if zero. */
+	IF !CC JUMP .Lbytes;  /* Jump if addrs not aligned. */
+	P1 = P2 >> 2;         /* count = n/4 */
 	P1 += -1;
 	R3 =  3;
-	R2 = R2 & R3;         // remainder
-	P2 = R2;              // set remainder
+	R2 = R2 & R3;         /* remainder */
+	P2 = R2;              /* set remainder */
 	R1 = [I0++];
 #if !defined(__WORKAROUND_AVOID_DAG1)
-	LSETUP (quad_loop , quad_loop) LC0=P1;
-quad_loop:		MNOP || [P0++] = R1 || R1 = [I0++];
+	LSETUP (.Lquad_loop, .Lquad_loop) LC0=P1;
+.Lquad_loop:	MNOP || [P0++] = R1 || R1 = [I0++];
 #else
-	LSETUP (quad_loop_s , quad_loop_e) LC0=P1;
-quad_loop_s:	[P0++] = R1;
-quad_loop_e:	R1 = [I0++];
+	LSETUP (.Lquad_loop_s, .Lquad_loop_e) LC0=P1;
+.Lquad_loop_s:	[P0++] = R1;
+.Lquad_loop_e:	R1 = [I0++];
 #endif
 	[P0++] = R1;
 
-	CC = P2 == 0;         // any remaining bytes?
-	P3 = I0;	      // Ammend P3 for remaining copy
-	IF !CC JUMP bytes;
+	CC = P2 == 0;         /* any remaining bytes? */
+	P3 = I0;              /* Ammend P3 for remaining copy */
+	IF !CC JUMP .Lbytes;
 	P3 = [SP++];
 	RTS;
 
-too_small:
-	CC = P2 == 0;           //Check zero count
-	IF CC JUMP finished;    // very unlikely
+.Ltoo_small:
+	CC = P2 == 0;          /* Check zero count */
+	IF CC JUMP .Lfinished; /* very unlikely */
 
-bytes:
-	LSETUP (byte_loop_s , byte_loop_e) LC0=P2;
-byte_loop_s:	R1 = B[P3++](Z);
-byte_loop_e:	B[P0++] = R1;
+.Lbytes:
+	LSETUP (.Lbyte_loop_s, .Lbyte_loop_e) LC0=P2;
+.Lbyte_loop_s:	R1 = B[P3++](Z);
+.Lbyte_loop_e:	B[P0++] = R1;
 
-finished:
+.Lfinished:
 	P3 = [SP++];
+
 	RTS;
-.size _memcpy,.-_memcpy
+.size ___GI_memcpy,.-___GI_memcpy
 
-libc_hidden_def (memcpy)
+.hidden ___GI_memcpy
+.weak _memcpy
+.set _memcpy,___GI_memcpy
diff --git a/libc/string/bfin/memmove.S b/libc/string/bfin/memmove.S
index 3d446f326..da1128387 100644
--- a/libc/string/bfin/memmove.S
+++ b/libc/string/bfin/memmove.S
@@ -1,5 +1,5 @@
 /* memmove.S
- * Copyright (C) 2003, 2005, 2006 Analog Devices Inc., All Rights Reserved.
+ * Copyright (C) 2003-2007 Analog Devices Inc., All Rights Reserved.
  *
  * This file is subject to the terms and conditions of the GNU Library General
  * Public License. See the file "COPYING.LIB" in the main directory of this
@@ -9,6 +9,8 @@
  * http://www.analog.com/processors/resources/crosscore/visualDspDevSoftware.html
  */
 
+#include <sysdep.h>
+
 /* void *memmove(void *dest, const void *src, size_t n);
  * R0 = To Address (dest) (leave unchanged to form result)
  * R1 = From Address (src)
@@ -21,75 +23,84 @@
 
 .align 2
 
-.global _memmove
-.type _memmove, STT_FUNC
-_memmove:
+	/* We have to bypass the libc-symbols.h machinery to make sure we get
+	   a weak symbol for memcpy (some crummy gcc tests want to redefine
+	   it).  */
+.global ___GI_memmove
+.type ___GI_memmove, STT_FUNC
+___GI_memmove:
 	I1 = P3;
-	P0 = R0;              // P0 = To address
-	P3 = R1;              // P3 = From Address
-	P2 = R2 ;             // P2 = count
-	CC = P2 == 0;           //Check zero count
-	IF CC JUMP finished;    // very unlikely
+	P0 = R0;                  /* P0 = To address */
+	P3 = R1;                  /* P3 = From Address */
+	P2 = R2;                  /* P2 = count */
+	CC = P2 == 0;             /* Check zero count*/
+	IF CC JUMP .Lfinished;    /* very unlikely */
 
-	CC = R1 < R0 (IU);	// From < To
-	IF !CC JUMP no_overlap;
+	CC = R1 < R0 (IU);        /* From < To */
+	IF !CC JUMP .Lno_overlap;
 	R3 = R1 + R2;
-	CC = R0 <= R3 (IU);	// (From+len) >= To
-	IF CC JUMP overlap;
-no_overlap:
+	CC = R0 <= R3 (IU);       /* (From+len) >= To */
+	IF CC JUMP .Loverlap;
+.Lno_overlap:
 	R3 = 11;
 	CC = R2 <= R3;
-	IF CC JUMP  bytes;
-	R3 = R1 | R0;         // OR addresses together
-	R3 <<= 30;            // check bottom two bits
-	CC =  AZ;             // AZ set if zero.
-	IF !CC JUMP  bytes ;  // Jump if addrs not aligned.
+	IF CC JUMP .Lbytes;
+	R3 = R1 | R0;             /* OR addresses together */
+	R3 <<= 30;                /* check bottom two bits */
+	CC =  AZ;                 /* AZ set if zero.*/
+	IF !CC JUMP .Lbytes;      /* Jump if addrs not aligned.*/
 
 	I0 = P3;
-	P1 = P2 >> 2;         // count = n/4
+	P1 = P2 >> 2;             /* count = n/4 */
 	P1 += -1;
 	R3 =  3;
-	R2 = R2 & R3;         // remainder
-	P2 = R2;              // set remainder
+	R2 = R2 & R3;             /* remainder */
+	P2 = R2;                  /* set remainder */
 	R1 = [I0++];
 
 #if !defined(__WORKAROUND_AVOID_DAG1)
-	LSETUP (quad_loop , quad_loop) LC0=P1;
-quad_loop:		MNOP || [P0++] = R1 || R1 = [I0++];
+	LSETUP (.Lquad_loop, .Lquad_loop) LC0=P1;
+.Lquad_loop:	MNOP || [P0++] = R1 || R1 = [I0++];
 #else
-	LSETUP (quad_loop_s, quad_loop_e) LC0=P1;
-quad_loop_s:	[P0++] = R1;
-quad_loop_e:	R1 = [I0++];
+	LSETUP (.Lquad_loop_s, .Lquad_loop_e) LC0=P1;
+.Lquad_loop_s:	[P0++] = R1;
+.Lquad_loop_e:	R1 = [I0++];
 #endif
 	[P0++] = R1;
 
-	CC = P2 == 0;         // any remaining bytes?
-	P3 = I0;		  // Ammend P3 to updated ptr.
-	IF !CC JUMP bytes;
+	CC = P2 == 0;             /* any remaining bytes? */
+	P3 = I0;                  /* Ammend P3 to updated ptr. */
+	IF !CC JUMP .Lbytes;
 	P3 = I1;
 	RTS;
 
-bytes:		LSETUP (byte2_s , byte2_e) LC0=P2;
-byte2_s:	R1 = B[P3++](Z);
-byte2_e:	B[P0++] = R1;
+.Lbytes:     LSETUP (.Lbyte2_s, .Lbyte2_e) LC0=P2;
+.Lbyte2_s:   R1 = B[P3++](Z);
+.Lbyte2_e:   B[P0++] = R1;
 
-finished:
-	P3 = I1;
+.Lfinished:  P3 = I1;
 	RTS;
 
-overlap:
+.Loverlap:
 	P2 += -1;
 	P0 = P0 + P2;
 	P3 = P3 + P2;
 	R1 = B[P3--] (Z);
 	CC = P2 == 0;
-	IF CC JUMP no_loop;
-	LSETUP (ol_s, ol_e) LC0 = P2;
-ol_s:		B[P0--] = R1;
-ol_e:		R1 = B[P3--] (Z);
-no_loop:	B[P0] = R1;
+	IF CC JUMP .Lno_loop;
+#if defined(__WORKAROUND_SPECULATIVE_LOADS)
+	NOP;
+	NOP;
+#endif
+	LSETUP (.Lol_s, .Lol_e) LC0 = P2;
+.Lol_s:    B[P0--] = R1;
+.Lol_e:    R1 = B[P3--] (Z);
+.Lno_loop: B[P0] = R1;
 	P3 = I1;
 	RTS;
-.size _memmove,.-_memmove
 
-libc_hidden_def (memmove)
+.size ___GI_memmove,.-___GI_memmove
+
+.hidden ___GI_memmove
+.weak _memmove
+.set _memmove,___GI_memmove
diff --git a/libc/string/bfin/memset.S b/libc/string/bfin/memset.S
index bd8eb4b6a..c8ee0835f 100644
--- a/libc/string/bfin/memset.S
+++ b/libc/string/bfin/memset.S
@@ -1,5 +1,5 @@
 /* memset.S
- * Copyright (C) 2003, 2005, 2006 Analog Devices Inc., All Rights Reserved.
+ * Copyright (C) 2003-2007 Analog Devices Inc., All Rights Reserved.
  *
  * This file is subject to the terms and conditions of the GNU Library General
  * Public License. See the file "COPYING.LIB" in the main directory of this
@@ -9,6 +9,8 @@
  * http://www.analog.com/processors/resources/crosscore/visualDspDevSoftware.html
  */
 
+#include <sysdep.h>
+
 /* void *memset(void *s, int c, size_t n);
  * R0 = address (s) (leave unchanged to form result)
  * R1 = filler byte (c)
@@ -21,66 +23,74 @@
 
 .align 2
 
-.global _memset
-.type _memset, STT_FUNC
-_memset:
-	P0 = R0 ;             // P0 = address
-	P2 = R2 ;             // P2 = count
-	R3 = R0 + R2;         // end
+/* We have to bypass the libc-symbols.h machinery to make sure we get
+ * a weak symbol for memcpy (some crummy gcc tests want to redefine it).
+ */
+.global ___GI_memset
+.type ___GI_memset, STT_FUNC
+___GI_memset:
+	P0 = R0 ;              /* P0 = address */
+	P2 = R2 ;              /* P2 = count   */
+	R3 = R0 + R2;          /* end          */
 	CC = R2 <= 7(IU);
-	IF CC JUMP  too_small;
-	R1 = R1.B (Z);        // R1 = fill char
+	IF CC JUMP  .Ltoo_small;
+	R1 = R1.B (Z);         /* R1 = fill char */
 	R2 =  3;
-	R2 = R0 & R2;         // addr bottom two bits
-	CC =  R2 == 0;             // AZ set if zero.
-	IF !CC JUMP  force_align ;  // Jump if addr not aligned.
+	R2 = R0 & R2;          /* addr bottom two bits */
+	CC =  R2 == 0;             /* AZ set if zero.	*/
+	IF !CC JUMP  .Lforce_align ;  /* Jump if addr not aligned. */
 
-aligned:
-	P1 = P2 >> 2;          // count = n/4
-	R2 = R1 <<  8;         // create quad filler
+.Laligned:
+	P1 = P2 >> 2;          /* count = n/4        */
+	R2 = R1 <<  8;         /* create quad filler */
 	R2.L = R2.L + R1.L(NS);
 	R2.H = R2.L + R1.H(NS);
 	P2 = R3;
 
-	LSETUP (quad_loop , quad_loop) LC0=P1;
-quad_loop:
+	LSETUP (.Lquad_loop , .Lquad_loop) LC0=P1;
+.Lquad_loop:
 	[P0++] = R2;
 
 	CC = P0 == P2;
-	IF !CC JUMP bytes_left;
+	IF !CC JUMP .Lbytes_left;
 	RTS;
 
-bytes_left:
-	R2 = R3;         // end point
-	R3 = P0;         // current position
-	R2 = R2 - R3;    // bytes left
+.Lbytes_left:
+	R2 = R3;                /* end point */
+	R3 = P0;                /* current position */
+	R2 = R2 - R3;           /* bytes left */
 	P2 = R2;
 
-too_small:
-	CC = P2 == 0;           //Check zero count
-	IF CC JUMP finished;    // Unusual
+.Ltoo_small:
+	CC = P2 == 0;           /* Check zero count */
+	IF CC JUMP .Lfinished;    /* Unusual */
 
-bytes:       LSETUP (byte_loop , byte_loop) LC0=P2;
-byte_loop:   B[P0++] = R1;
+.Lbytes:
+	LSETUP (.Lbyte_loop , .Lbyte_loop) LC0=P2;
+.Lbyte_loop:
+	B[P0++] = R1;
 
-finished:
+.Lfinished:
 	RTS;
 
-force_align:
-	CC = BITTST (R0, 0 );  // odd byte
+.Lforce_align:
+	CC = BITTST (R0, 0);  /* odd byte */
 	R0 = 4;
 	R0 = R0 - R2;
 	P1 = R0;
-	R0 = P0;			// Recover return address
-	IF !CC JUMP skip1;
+	R0 = P0;		    /* Recover return address */
+	IF !CC JUMP .Lskip1;
 	B[P0++] = R1;
-skip1:
-	CC = R2 <= 2;          // 2 bytes
-	P2 -= P1;              // reduce count
-	IF !CC JUMP aligned;
+.Lskip1:
+	CC = R2 <= 2;          /* 2 bytes */
+	P2 -= P1;              /* reduce count */
+	IF !CC JUMP .Laligned;
 	B[P0++] = R1;
 	B[P0++] = R1;
-	JUMP aligned;
-.size _memset,.-_memset
+	JUMP .Laligned;
+
+.size ___GI_memset,.-___GI_memset
 
-libc_hidden_def (memset)
+.hidden ___GI_memset
+.weak _memset
+.set _memset,___GI_memset
diff --git a/libc/string/bfin/strcmp.S b/libc/string/bfin/strcmp.S
index 07629c03b..c0a706d2b 100644
--- a/libc/string/bfin/strcmp.S
+++ b/libc/string/bfin/strcmp.S
@@ -1,5 +1,5 @@
 /* strcmp.S
- * Copyright (C) 2003, 2005, 2006 Analog Devices Inc., All Rights Reserved.
+ * Copyright (C) 2003-2007 Analog Devices Inc., All Rights Reserved.
  *
  * This file is subject to the terms and conditions of the GNU Library General
  * Public License. See the file "COPYING.LIB" in the main directory of this
@@ -9,6 +9,8 @@
  * http://www.analog.com/processors/resources/crosscore/visualDspDevSoftware.html
  */
 
+#include <sysdep.h>
+
 /* Fast strcmp() for Blackfin.
  * When both strings are aligned, this processes four characters at
  * a time. Uses a hw loop with "very big" count to loop "forever",
@@ -17,15 +19,11 @@
  * loop to check more carefully (same as the unaligned case).
  */
 
-#include <features.h>
-
 .text
 
 .align 2
 
-.global _strcmp
-.type _strcmp, STT_FUNC
-_strcmp:
+ENTRY(_strcmp)
 	[--sp] = (R7:4);
 	p1 = r0;
 	p2 = r1;
@@ -36,13 +34,13 @@ _strcmp:
 	r0 = r0 | r1;	// check both pointers at same time
 	r0 <<= 30;	// dump all but last 2 bits
 	cc = az;	// are they zero?
-	if !cc jump unaligned;	// no; use unaligned code.
+	if !cc jump .Lunaligned;	// no; use unaligned code.
 			// fall-thru for aligned case..
 
 	  // note that r0 is zero from the previous...
 	  //           p0 set to -1
 
-	lsetup (beginloop, endloop) lc0=p0;
+	LSETUP (.Lbeginloop, .Lendloop) lc0=p0;
 	  // pick up first words
 	r1 = [p1++];
 	r2 = [p2++];
@@ -51,8 +49,8 @@ _strcmp:
 	r7.h = 0xFF;
 		// loop : 9 cycles to check 4 characters
 	cc = r1 == r2;
-beginloop:
-	if !cc jump notequal4;	// compare failure, exit loop
+.Lbeginloop:
+	if !cc jump .Lnotequal4;	// compare failure, exit loop
 
 	  // starting with   44332211
 	  // see if char 3 or char 1 is 0
@@ -65,18 +63,18 @@ beginloop:
 	// add to zero,  and  (r1 is free, reload)
 	r6 = r3 +|+ r0 || r1 = [p1++] || nop;
 	cc |= az;	// true if either is zero
-	if cc jump zero4;	// leave if a zero somewhere
-endloop:
+	if cc jump .Lzero4;	// leave if a zero somewhere
+.Lendloop:
 	cc = r1 == r2;
 
  // loop exits
-notequal4:		// compare failure on 4-char compare
+.Lnotequal4:		// compare failure on 4-char compare
 			// address pointers are one word ahead;
 			// faster to use zero4 exit code
 	p1 += 4;
 	p2 += 4;
 
-zero4:			// one of the bytes in word 1 is zero
+.Lzero4:			// one of the bytes in word 1 is zero
 			// but we've already fetched the next word; so
 			// backup two to look at failing word again
 	p1 += -8;
@@ -87,27 +85,27 @@ zero4:			// one of the bytes in word 1 is zero
 		// here when pointers are unaligned: checks one
 		// character at a time.  Also use at the end of
 		// the word-check algorithm to figure out what happened
-unaligned:
+.Lunaligned:
 	  //	R0 is non-zero from before.
 	  //           p0 set to -1
 
 	r0 = 0 (Z);
 	r1 = B[p1++] (Z);
 	r2 = B[p2++] (Z);
-	lsetup (beginloop1, endloop1) lc0=p0;
+	LSETUP (.Lbeginloop1, .Lendloop1) lc0=p0;
 
-beginloop1:
+.Lbeginloop1:
 	cc = r1;	// first char must be non-zero
 	// chars must be the same
 	r3 = r2 - r1 (NS) || r1 = B[p1++] (Z) || nop;
 	cc &= az;
 	r3 = r0 - r2;	// second char must be non-zero
 	cc &= an;
-	if !cc jump exitloop1;
-endloop1:
+	if !cc jump .Lexitloop1;
+.Lendloop1:
 	r2 = B[p2++] (Z);
 
-exitloop1: // here means we found a zero or a difference.
+.Lexitloop1: // here means we found a zero or a difference.
 	   // we have r2(N), p2(N), r1(N+1), p1(N+2)
 	r1=B[p1+ -2] (Z);
 	r0 = r1 - r2;
diff --git a/libc/sysdeps/linux/bfin/sysdep.h b/libc/sysdeps/linux/bfin/sysdep.h
new file mode 100644
index 000000000..4080c22a4
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/sysdep.h
@@ -0,0 +1,20 @@
+/*
+ * libc/sysdeps/linux/bfin/sysdep.h
+ *
+ * Copyright (C) 2007 Analog Devices Inc.
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#ifndef __BFIN_SYSDEP_H__
+#define __BFIN_SYSDEP_H__
+
+#include <features.h>
+
+#ifdef __ASSEMBLER__
+
+#define ENTRY(sym) .global sym; .type sym, STT_FUNC; sym:
+
+#endif
+
+#endif