411954 I know how to strip a binary's symbol table of all non-global symbols except for text symbols. I also know how to strip LC_CODE_SIGNATURE load commands once they've been added. Introducing striptease. r=smorgan r=ardissone

camino/Makefile.in

@@ -47,6 +47,7 @@ include $(DEPTH)/config/autoconf.mk
 DIRS = \
 	flashblock \
 	idl \
+	striptease \
 	$(NULL)
 
 APP_NAME	= Camino

camino/striptease/Makefile.in

@@ -0,0 +1,97 @@
+# ***** BEGIN LICENSE BLOCK *****
+# Version: MPL 1.1/GPL 2.0/LGPL 2.1
+#
+# The contents of this file are subject to the Mozilla Public License Version
+# 1.1 (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+# http://www.mozilla.org/MPL/
+#
+# Software distributed under the License is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+# for the specific language governing rights and limitations under the
+# License.
+#
+# The Original Code is just a lowly Makefile.
+#
+# The Initial Developer of the Original Code is Google Inc.
+# Portions created by the Initial Developer are Copyright (C) 2008
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#  Mark Mentovai <mark@moxienet.com> (Original Author)
+#
+# Alternatively, the contents of this file may be used under the terms of
+# either the GNU General Public License Version 2 or later (the "GPL"), or
+# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+# in which case the provisions of the GPL or the LGPL are applicable instead
+# of those above. If you wish to allow use of your version of this file only
+# under the terms of either the GPL or the LGPL, and not to allow others to
+# use your version of this file under the terms of the MPL, indicate your
+# decision by deleting the provisions above and replace them with the notice
+# and other provisions required by the GPL or the LGPL. If you do not delete
+# the provisions above, a recipient may use your version of this file under
+# the terms of any one of the MPL, the GPL or the LGPL.
+#
+# ***** END LICENSE BLOCK *****
+
+DEPTH		= ../..
+topsrcdir	= @top_srcdir@
+srcdir		= @srcdir@
+VPATH		= @srcdir@
+
+include $(DEPTH)/config/autoconf.mk
+
+LIBSTUFF_CSRCS	= \
+		libstuff/allocate.c \
+		libstuff/arch.c \
+		libstuff/arch_usage.c \
+		libstuff/breakout.c \
+		libstuff/bytesex.c \
+		libstuff/checkout.c \
+		libstuff/crc32.c \
+		libstuff/errors.c \
+		libstuff/fatal_arch.c \
+		libstuff/fatals.c \
+		libstuff/get_arch_from_host.c \
+		libstuff/ofile.c \
+		libstuff/ofile_error.c \
+		libstuff/print.c \
+		libstuff/reloc.c \
+		libstuff/round.c \
+		libstuff/set_arch_flag_name.c \
+		libstuff/swap_headers.c \
+		libstuff/symbol_list.c \
+		libstuff/unix_standard_mode.c \
+		libstuff/writeout.c \
+		$(NULL)
+
+# It's possible to build strip (the unmodified original version) or tease
+# (the enahnced version) by changing the value of this variable.
+STRIP_OR_TEASE	= tease
+
+# Build tease (or strip) as a host program because we only care about running
+# it on the build host.  It doesn't need to be built for the target
+# architecture.
+HOST_PROGRAM	= $(STRIP_OR_TEASE)
+HOST_CFLAGS	+= -I$(srcdir)/include
+HOST_CSRCS	= \
+		$(STRIP_OR_TEASE).c \
+		$(LIBSTUFF_CSRCS) \
+		$(NULL)
+
+# config/rules.mk has a simpler transformation to derive HOST_OBJS from
+# HOST_CSRCS.  It simply prepends host_ to each name.  That winds up
+# referencing the host_libstuff directory, which does not exist.  This
+# transformation splits each proposed object into its dirname and basename,
+# prepending host_ only to the basename.
+HOST_OBJS	= $(foreach obj, \
+		  $(HOST_CSRCS:.c=.$(OBJ_SUFFIX)), \
+		  $(dir $(obj))$(addprefix host_,$(notdir $(obj))))
+
+# Be sure there's a place to put libstuff objects in an objdir build.
+ifneq ($(ABS_topsrcdir),$(MOZ_BUILD_ROOT))
+libs::
+	mkdir -p libstuff
+endif
+
+include $(topsrcdir)/config/rules.mk

camino/striptease/README

@@ -0,0 +1,36 @@
+striptease (or "tease" for short) is an enhanced version of strip.  It's
+capable of stripping a binary's symbol table of non-text local symbols.
+This mode, enabled with the -t switch, is similar to "strip -s", except
+-s strips all local symbols including text symbols.  tease -t allows for
+useful CrashReporter stacks to be generated on the deployment host.  This
+is important in light of the hidden-visibility default (-fvisibility=hidden)
+that results in many symbols not being marked as global and therefore being
+stripped by an ordinary strip -s.
+
+tease also includes a -no_code_signature option, which strips any
+LC_CODE_SIGNATURE load commands from the target file, in much the same way
+as the ordinary strip's -no_uuid option.
+
+Finally, tease includes an -a option, which instructs it to regenerate the
+symbol table without stripping anything.  tease -a is intended to be used
+in conjunction with -no_code_signature (or -no_uuid), to pass over the file
+and only strip the relevant Mach-O load commands without removing anything
+from the symbol table.
+
+striptease is based on strip.c and other supporting files in Apple's
+cctools package.  This version of striptease is based on cctools-667.3,
+corresponding to Xcode Tools 3.0 and Mac OS X 10.5.0.  It builds properly
+under Xcode Tools 2.x on Mac OS X 10.4, as well.  The cctools package is
+available from:
+
+http://www.opensource.apple.com/darwinsource/tarballs/apsl/cctools-667.3.tar.gz
+
+cctools, and therefore strip, are available under the APSL license:
+
+http://www.opensource.apple.com/apsl/
+
+All files from cctools necessary to build strip are included, unmodified.
+This includes strip.c.  Changes to strip.c are made in tease.c.  Many other
+files from the cctools package not relevant to strip (or tease) are omitted
+from this distribution.  This README and an accompanying Makefile.in for
+build system integration are also included.

camino/striptease/include/architecture/m88k/fp_regs.h

@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 2004, Apple Computer, Inc. All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer. 
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution. 
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission. 
+ * 
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+/* Copyright (c) 1991 NeXT Computer, Inc.  All rights reserved.
+ *
+ *	File:	architecture/m88k/fp_regs.h
+ *	Author:	Mike DeMoney, NeXT Computer, Inc.
+ *
+ *	This include file defines Motorola 88K architecturally defined
+ *	floating point control and status registers.
+ *
+ * HISTORY
+ * 23-Jan-91  Mike DeMoney (mike@next.com)
+ *	Created.
+ */
+
+#ifndef	_ARCH_M88K_FP_REGS_H_
+#define	_ARCH_M88K_FP_REGS_H_
+
+#import <architecture/m88k/reg_help.h>
+
+/*
+ * m88k_xrf_t -- data types that MAY be in extended register file
+ * Actual data types supported is implementation dependent
+ */
+typedef union {
+	float		f;		// 32 bit IEEE single
+	double		d;		// 64 bit IEEE double
+	/*
+	 * NOTE: currently compiler implements long double type
+	 * simply as double.  In the future, it may implement
+	 * this as 80 bit IEEE double extended or 128 bit IEEE quad
+	 * as appropriate for the 88K implementation.
+	 */
+	long double	e;		// 80 or 128 bit IEEE format
+	/* Insure compiler aligns struct appropriately */
+#ifdef __GNUC__
+	unsigned	x[4] __attribute__(( aligned(16) ));
+#else
+	unsigned	x[4];
+#endif
+} m88k_xrf_t;
+
+/*
+ * FPSR -- Floating Point Status Register
+ */
+typedef struct {
+	unsigned	:BITS_WIDTH(31,17);
+	unsigned	xmod:BIT_WIDTH(16);	// extended registers modified
+	unsigned	:BITS_WIDTH(15,5);
+	unsigned	afinv:BIT_WIDTH(4);	// accumulated invalid flag
+	unsigned	afdvz:BIT_WIDTH(3);	// accumulated div by zero flag
+	unsigned	afunf:BIT_WIDTH(2);	// accumulated underflow flag
+	unsigned	afovf:BIT_WIDTH(1);	// accumulated overflow flag
+	unsigned	afinx:BIT_WIDTH(0);	// accumulated inexact flag
+} m88k_fpsr_t;
+
+/*
+ * FPCR -- Floating Point Control Register
+ * 88K architecturally specified form.
+ * Does not expose implementation-dependent functions
+ */
+typedef enum {
+	M88K_RM_NEAREST = 0,		// round toward nearest
+	M88K_RM_ZERO	= 1,		// round toward zero
+	M88K_RM_NEGINF = 2,		// round toward negative infinity
+	M88K_RM_POSINF =3		// round toward positive infinity
+} m88k_fpcr_rm_t;
+
+typedef struct {
+	unsigned	:BITS_WIDTH(31,16);
+	m88k_fpcr_rm_t	rm:BITS_WIDTH(15,14);	// rounding mode
+	unsigned	:BITS_WIDTH(13,5);
+	unsigned	efinv:BIT_WIDTH(4);	// invalid exception enable
+	unsigned	efdvz:BIT_WIDTH(3);	// div by zero exception enable
+	unsigned	efunf:BIT_WIDTH(2);	// underflow exception enable
+	unsigned	efovf:BIT_WIDTH(1);	// overflow exception enable
+	unsigned	efinx:BIT_WIDTH(0);	// inexact exception enable
+} m88k_fpcr_t;
+
+/*
+ * FPCR -- Floating Point Control Register
+ * 88110 implementation -- includes "TCFP" features.
+ */
+typedef struct {
+	unsigned	:BITS_WIDTH(31,22);
+	unsigned	tcfp:BIT_WIDTH(21);	// def results for INF/NaN
+	unsigned	:BITS_WIDTH(20,19);
+	unsigned	tcfpunf:BIT_WIDTH(18);	// underflow -> zero
+	unsigned	tcfpovf:BIT_WIDTH(17);	// overflow -> inf
+	unsigned	:BIT_WIDTH(16);
+	m88k_fpcr_rm_t	rm:BITS_WIDTH(15,14);	// rounding mode
+	unsigned	:BITS_WIDTH(13,5);
+	unsigned	efinv:BIT_WIDTH(4);	// invalid exception enable
+	unsigned	efdvz:BIT_WIDTH(3);	// div by zero exception enable
+	unsigned	efunf:BIT_WIDTH(2);	// underflow exception enable
+	unsigned	efovf:BIT_WIDTH(1);	// overflow exception enable
+	unsigned	efinx:BIT_WIDTH(0);	// inexact exception enable
+} m88110_fpcr_t;
+
+#ifdef m88k
+#ifndef	__STRICT_ANSI__
+/*
+ * read and write fpsr and fpcr registers
+ *
+ * FIXME: When the compiler is fixed, convert to style of inlines shown
+ * in m88110_sfu0.h which do not use either CONTENTS() macro or
+ * *(foo_t *)& casts (and therefore, don't force the compiler to generate
+ * a memory reference.
+ */
+static __inline__ m88k_fpsr_t m88k_get_fpsr()
+{
+	unsigned	cr_tmp;
+	
+	__asm__ volatile ("fldcr	 %0,fcr62	; get_fpsr()" : "=r" (cr_tmp));
+	return *(m88k_fpsr_t *)&cr_tmp;
+}
+
+static __inline__ void m88k_set_fpsr(m88k_fpsr_t fpsr_val)
+{
+	/*
+	 * Must force xmod to 1, since OS uses this to determine
+	 * if XRF must be context switched.  Not setting to 1
+	 * will NOT corrupt other threads registers, but will
+	 * result in loss of this threads register values.
+	 */
+	fpsr_val.xmod = 1;
+	__asm__ volatile ("fstcr	 %0,fcr62	; set_fpsr()"
+	  : : "r" (CONTENTS(fpsr_val)));
+}
+
+static __inline__ m88k_fpcr_t m88k_get_fpcr()
+{
+	unsigned	cr_tmp;
+	
+	__asm__ volatile ("fldcr	 %0,fcr63	; get_fpcr()" : "=r" (cr_tmp));
+	return *(m88k_fpcr_t *)&cr_tmp;
+}
+
+static __inline__ void m88k_set_fpcr(m88k_fpcr_t fpcr_val)
+{
+	__asm__ volatile ("fstcr	 %0,fcr63	; set_fpcr()"
+	  : : "r" (CONTENTS(fpcr_val)));
+}
+#endif /* __STRICT_ANSI__ */
+#endif /* m88k */
+
+#endif	/* _ARCH_M88K_FP_REGS_H_ */