Update. cvs/libc-ud-970414 cvs/libc-970430 cvs/libc-970429 cvs/libc-970428 cvs/libc-970427 cvs/libc-970426 cvs/libc-970425 cvs/libc-970424 cvs/libc-970423 cvs/libc-970422 cvs/libc-970421 cvs/libc-970420 cvs/libc-970419 cvs/libc-970418 cvs/libc-970417 cvs/libc-970416 cvs/libc-970415

1997-04-15 03:14  Ulrich Drepper  <drepper@cygnus.com>

	* wcsmbs/wcsstr.c: Add weak alias wcswcs for Unix98 compliance.

	* math/Makefile (libm-calls): Add s_sincos and s_cproj.
	* math/mathcalls.h: Add prototype for sincos.
	* sysdeps/i386/fpu/__math.h: Warn about restriction on arguments to
	inlined sin and cos function.
	Define functions new in ISO C 9X when __USE_ISOC9X is defined.
	Add optimized version of finite.
	Rewrite sincos function to handle too large arguments.
	* sysdeps/libm-i387/s_cos.S: Better code alignment.
	* sysdeps/libm-i387/s_cosl.S: Likewise.
	* sysdeps/libm-i387/s_sin.S: Likewise.
	* sysdeps/libm-i387/s_sinl.S: Likewise.
	* sysdeps/libm-i387/s_finite.S: Yet better code.
	* sysdeps/libm-i387/s_finitef.S: Likewise.
	* sysdeps/libm-i387/s_sincos.S: New file.
	* sysdeps/libm-i387/s_sincosf.S: New file.
	* sysdeps/libm-i387/s_sincosl.S: New file.
	* sysdeps/libm-ieee754/s_sincos.c: New file.
	* sysdeps/libm-ieee754/s_sincosf.c: New file.
	* sysdeps/libm-ieee754/s_sincosl.c: New file.

	* sysdeps/libm-ieee754/s_ccosh.c: Change to use sincos function.
	* sysdeps/libm-ieee754/s_ccoshf.c: Likewise.
	* sysdeps/libm-ieee754/s_ccoshl.c: Likewise.
	* sysdeps/libm-ieee754/s_cexp.c: Likewise.
	* sysdeps/libm-ieee754/s_cexpf.c: Likewise.
	* sysdeps/libm-ieee754/s_cexpl.c: Likewise.
	* sysdeps/libm-ieee754/s_csinh.c: Likewise.
	* sysdeps/libm-ieee754/s_csinhf.c: Likewise.
	* sysdeps/libm-ieee754/s_csinhl.c: Likewise.
	* sysdeps/libm-ieee754/s_ctan.c: Likewise.
	* sysdeps/libm-ieee754/s_ctanf.c: Likewise.
	* sysdeps/libm-ieee754/s_ctanl.c: Likewise.
	* sysdeps/libm-ieee754/s_ctanh.c: Likewise.
	* sysdeps/libm-ieee754/s_ctanhf.c: Likewise.
	* sysdeps/libm-ieee754/s_ctanhl.c: Likewise.

	* sysdeps/libm-ieee754/s_cosl.c: Correct check for range.
	* sysdeps/libm-ieee754/s_sinl.c: Likewise.

	* sysdeps/libm-ieee754/s_roundtol.c: Fix typos.
	* sysdeps/libm-ieee754/s_roundtoll.c: Likewise.

	* nis/Makefile (services): Mention nisplus before compat.
	* nis/nis_call.c (__do_niscall): Change type of variable server_len
	to prevent warning.
	* nis/nss_compat/compat-grp.c (getgrent_next_file_plusgroup): Add
	cast to prevent warning.
	* nis/nss_compat/compat-pwd.c (getpwent_next_file_plususer): Likewise.
	* nis/nss_compat/compat-spwd.c (getspent_next_file_plususer): Likewise.
	* nis/nss_nisplus/nisplus-hosts.c (_nss_nisplus_parse_hostent): Change
	type of variable `i' to prevent warning.
	* nis/nss_nisplus/nisplus-network.c (_nss_nisplus_parse_netent):
	Likewise.
	* nis/nss_nisplus/nisplus-proto.c (_nss_nisplus_parse_protoent):
	Likewise.
	* nis/nss_nisplus/nisplus-rpc.c (_nss_nisplus_parse_rpcent): Likewise.
	* nis/nss_nisplus/nisplus-service.c (_nss_nisplus_parse_servent):
	Likewise.

	* sysdeps/generic/Dist: Remove old math implementation files.
	* sysdeps/generic/mathimpl.h: Removed.
	* sysdeps/generic/trig.h: Removed.
	* sysdeps/generic/sincos.c: Removed.
	* sysdeps/generic/asincos.c: Removed.
	* sysdeps/generic/exp__E.c: Removed.
	* sysdeps/generic/log__L.c: Removed.

1997-04-13 17:18  Wolfram Gloger  <wmglo@dent.med.uni-muenchen.de>

	* malloc/malloc.c (fREe): Small optimization.  Before returning,
	add fast check whether the heap containing top can go away.

1997-04-11 16:46  Wolfram Gloger  <wmglo@dent.med.uni-muenchen.de>

	* malloc/malloc.c (mALLOc, rEALLOc, cALLOc, mEMALIGn): When
	failing to allocate a new chunk, also try the main_arena.  It may
	be that we are only running out of mmapped regions, and other
	arenas cannot be enlarged sufficiently.
	(new_heap, malloc_extend_top): Handle top_pad more consistently,
	i.e. only in new_heap().

1997-04-13 21:10  Philip Blundell  <pjb27@cl.cam.ac.uk>

	* sysdeps/posix/Makefile: Don't try to build and run mk-stdiolim
	if cross-compiling.

	* configure.in: Recognise "...linuxaout" OS names and turn off ELF.

	* configure.in: Add ARM support.
	* sysdeps/arm/Implies: New file.
	* sysdeps/arm/__longjmp.S: New file.
	* sysdeps/arm/bsd-_setjmp: New file.
	* sysdeps/arm/bsd-setjmp: New file.
	* sysdeps/arm/bytesex.h: New file.
	* sysdeps/arm/fpu_control.h: New file.
	* sysdeps/arm/jmp_buf.h: New file.
	* sysdeps/arm/setjmp.h: New file.
	* sysdeps/arm/sysdep.h: New file.
	* sysdeps/unix/arm/config.h: New file.

1997-04-14 04:03  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/libm-ieee754/s_cproj.c: New file.
	* sysdeps/libm-ieee754/s_cprojf.c: New file.
	* sysdeps/libm-ieee754/s_cprojl.c: New file.

9 files changed, 286 insertions, 0 deletions

diff --git a/sysdeps/arm/Implies b/sysdeps/arm/Implies
new file mode 100644
index 0000000000..d6acf04a82
--- /dev/null
+++ b/sysdeps/arm/Implies
@@ -0,0 +1,2 @@
+wordsize-32
+ieee754
diff --git a/sysdeps/arm/__longjmp.S b/sysdeps/arm/__longjmp.S
new file mode 100644
index 0000000000..5443761f0a
--- /dev/null
+++ b/sysdeps/arm/__longjmp.S
@@ -0,0 +1,37 @@
+/* longjmp for ARM.
+   Copyright (C) 1997 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
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+#define _ASM
+#include <jmp_buf.h>
+
+/* __longjmp(jmpbuf, val) */
+
+ENTRY (__longjmp)
+	movs	r2, r0
+	movs	r0, r1		/* get the return value in place */
+	moveq	r1, #1		/* can't let setjmp() return zero! */
+
+#if __ARM_USES_FP
+	add	r2, r2, #48
+	lfmfd	f4, 4, [r2]
+#endif
+	
+	LOADREGS(ia, r2, {v1-v6, sl, fp, sp, pc})
+END (__longjmp)
diff --git a/sysdeps/arm/bsd-_setjmp.S b/sysdeps/arm/bsd-_setjmp.S
new file mode 100644
index 0000000000..5643c50918
--- /dev/null
+++ b/sysdeps/arm/bsd-_setjmp.S
@@ -0,0 +1,29 @@
+/* BSD `_setjmp' entry point to `sigsetjmp (..., 0)'.  ARM version.
+   Copyright (C) 1997 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
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* This just does a tail-call to `__sigsetjmp (ARG, 1)'.
+   We cannot do it in C because it must be a tail-call, so frame-unwinding
+   in setjmp doesn't clobber the state restored by longjmp.  */
+
+#include <sysdep.h>
+
+ENTRY (_setjmp)
+	mov	r1, #0
+	b	__sigsetjmp
+END (_setjmp)
diff --git a/sysdeps/arm/bsd-setjmp.S b/sysdeps/arm/bsd-setjmp.S
new file mode 100644
index 0000000000..ac7dd96821
--- /dev/null
+++ b/sysdeps/arm/bsd-setjmp.S
@@ -0,0 +1,29 @@
+/* BSD `setjmp' entry point to `sigsetjmp (..., 1)'.  ARM version.
+   Copyright (C) 1997 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
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* This just does a tail-call to `__sigsetjmp (ARG, 1)'.
+   We cannot do it in C because it must be a tail-call, so frame-unwinding
+   in setjmp doesn't clobber the state restored by longjmp.  */
+
+#include <sysdep.h>
+
+ENTRY (setjmp)
+	mov	r1, #1
+	b	__sigsetjmp
+END (setjmp)
diff --git a/sysdeps/arm/bytesex.h b/sysdeps/arm/bytesex.h
new file mode 100644
index 0000000000..32f8489df2
--- /dev/null
+++ b/sysdeps/arm/bytesex.h
@@ -0,0 +1,3 @@
+/* ARM is little-endian.  */
+
+#define __BYTE_ORDER __LITTLE_ENDIAN
diff --git a/sysdeps/arm/fpu_control.h b/sysdeps/arm/fpu_control.h
new file mode 100644
index 0000000000..6a4a4bb0f0
--- /dev/null
+++ b/sysdeps/arm/fpu_control.h
@@ -0,0 +1,48 @@
+/* FPU control word definitions.  Stub version.
+Copyright (C) 1996 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
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef _FPU_CONTROL_H
+#define _FPU_CONTROL_H
+
+#define _FPU_RESERVED 0xffffffff  /* These bits are reserved.  */
+
+/* The fdlibm code requires no interrupts for exceptions.  Don't
+   change the rounding mode, it would break long double I/O!  */
+#define _FPU_DEFAULT  0x00000000 /* Default value.  */
+
+/* Type of the control word.  */
+typedef unsigned int fpu_control_t;
+
+/* Macros for accessing the hardware control word.
+ * On the ARM, we can't do this from user mode (it would trap). 
+ */
+#define _FPU_GETCW(cw) __asm__ ("movnv r0,r0" : "=g" (cw))
+#define _FPU_SETCW(cw) __asm__ ("movnv r0,r0" : : "g" (cw))
+
+/* Default control word set at startup.  */
+extern fpu_control_t __fpu_control;
+
+__BEGIN_DECLS
+
+/* Called at startup.  It can be used to manipulate fpu control register.  */
+extern void __setfpucw __P ((fpu_control_t));
+
+__END_DECLS
+
+#endif /* _FPU_CONTROL_H */
diff --git a/sysdeps/arm/jmp_buf.h b/sysdeps/arm/jmp_buf.h
new file mode 100644
index 0000000000..93b0f5f916
--- /dev/null
+++ b/sysdeps/arm/jmp_buf.h
@@ -0,0 +1,10 @@
+/* Define the machine-dependent type `jmp_buf'.  ARM version. */
+
+#ifndef _ASM
+/* Jump buffer contains v1-v6, sl, fp, sp, pc and (f4-f7) if we do FP. */
+#if __ARM_USES_FP
+typedef int __jmp_buf[22];
+#else
+typedef int __jmp_buf[10];
+#endif
+#endif
diff --git a/sysdeps/arm/setjmp.S b/sysdeps/arm/setjmp.S
new file mode 100644
index 0000000000..5891cb9dec
--- /dev/null
+++ b/sysdeps/arm/setjmp.S
@@ -0,0 +1,36 @@
+/* setjmp for ARM.
+   Copyright (C) 1997 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
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+#define _ASM
+#include <jmp_buf.h>
+
+	/* Binary compatibility entry point.  */
+ENTRY (__setjmp)
+	mov	r1, #0
+ENTRY (__sigsetjmp)
+	/* Save registers */
+#if __ARM_USES_FP
+	sfmea	f4, 4, [r0]!
+#endif	
+	stmia	r0, {v1-v6, sl, fp, sp, lr}
+
+	/* Make a tail call to __sigjmp_save; it takes the same args.  */
+	B	__sigjmp_save
+END (__sigsetjmp)
diff --git a/sysdeps/arm/sysdep.h b/sysdeps/arm/sysdep.h
new file mode 100644
index 0000000000..b7964a35b1
--- /dev/null
+++ b/sysdeps/arm/sysdep.h
@@ -0,0 +1,92 @@
+/* Assembler macros for ARM.
+   Copyright (C) 1997 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
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdeps/generic/sysdep.h>
+
+#ifdef	ASSEMBLER
+
+/* Syntactic details of assembler.  */
+
+#ifdef HAVE_ELF
+
+/* ELF uses byte-counts for .align, most others use log2 of count of bytes.  */
+#define ALIGNARG(log2) 1<<log2
+/* For ELF we need the `.type' directive to make shared libs work right.  */
+#define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg;
+#define ASM_SIZE_DIRECTIVE(name) .size name,.-name
+
+/* In ELF C symbols are asm symbols.  */
+#undef	NO_UNDERSCORES
+#define NO_UNDERSCORES
+
+#else
+
+#define ALIGNARG(log2) log2
+#define ASM_TYPE_DIRECTIVE(name,type)	/* Nothing is specified.  */
+#define ASM_SIZE_DIRECTIVE(name)	/* Nothing is specified.  */
+
+#endif
+
+/* ARM 6 needs slightly different handling */
+#ifdef __arm6__
+#define LOADREGS(cond, base, reglist...)\
+	ldm##cond	base,reglist
+#define RETINSTR(instr, regs...)\
+	instr	regs
+#else  /* arm 3 */
+#define LOADREGS(cond, base, reglist...)\
+	ldm##cond	base,reglist^
+#define RETINSTR(instr, regs...)\
+	instr##s	regs
+#endif
+
+/* Don't do floating point */
+#define __ARM_USES_FP   1
+
+/* Define an entry point visible from C.  */
+#define	ENTRY(name)							      \
+  ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name);				      \
+  ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function)			      \
+  .align ALIGNARG(4);							      \
+  C_LABEL(name)								      \
+  CALL_MCOUNT
+
+#undef	END
+#define END(name)							      \
+  ASM_SIZE_DIRECTIVE(name)
+
+/* If compiled for profiling, call `mcount' at the start of each function.  */
+#ifdef	PROF
+/* The mcount code relies on a normal frame pointer being on the stack
+   to locate our caller, so push one just for its benefit.  */
+#define CALL_MCOUNT \
+#error Profiling not supported.
+#else
+#define CALL_MCOUNT		/* Do nothing.  */
+#endif
+
+#ifdef	NO_UNDERSCORES
+/* Since C identifiers are not normally prefixed with an underscore
+   on this system, the asm identifier `syscall_error' intrudes on the
+   C name space.  Make sure we use an innocuous name.  */
+#define	syscall_error	__syscall_error
+#define mcount		_mcount
+#endif
+
+#endif	/* ASSEMBLER */