Build our own crti.o and crtn.o with a cross arch method that I

can live with much better the what glibc does.
 -Erik

14 files changed, 304 insertions, 13 deletions

diff --git a/extra/scripts/initfini.pl b/extra/scripts/initfini.pl
new file mode 100755
index 000000000..9a5c3ba09
--- /dev/null
+++ b/extra/scripts/initfini.pl
@@ -0,0 +1,140 @@
+#!/usr/bin/perl
+
+use strict;
+use Getopt::Long;
+
+my($initfini)	    = "initfini.s";
+my($crti)	    = "crti.S";
+my($crtn)	    = "crtn.S";
+my($alignval)	    = "";
+my($endp)	    = 0;
+my($end)	    = 0;
+my($omitcrti)	    = 0;
+my($omitcrtn)	    = 0;
+my($line);
+
+# Get commandline parameters
+Getopt::Long::Configure("no_ignore_case", "bundling");
+&GetOptions(	"initfini=s" => \$initfini,
+		"crti=s" => \$crti,
+		"crtn=s" => \$crtn,
+		);
+
+chomp($initfini);
+chomp($crti);
+chomp($crtn);
+
+
+if ($initfini) {
+	open(INITFINI,"<$initfini") or
+		    die "(fatal) Can't open $initfini$!";
+} else {
+    die "(fatal) Please give me an --initfini argument$!";
+}
+while($line = <INITFINI>) {
+    if ($line =~ /^\w\.endp/) {
+	$endp=1;
+	next;
+    }
+    if ($line =~ /^\w\.end/) {
+	$end=1;
+	next;
+    }
+    if ($line =~ /\w\.align\(.*\)/) {
+	$alignval=$1;
+	next;
+    }
+}
+close(INITFINI);
+
+
+
+
+
+if ($initfini) {
+	open(INITFINI,"<$initfini") or
+		    die "(fatal) Can't open $initfini$!";
+} else {
+    die "(fatal) Please give me an --initfini argument$!";
+}
+
+if ($crti) {
+	open(CRTI,">$crti") or
+		    die "(fatal) Can't open $crti$!";
+} else {
+    die "(fatal) Please give me a --asm argument$!";
+}
+if ($crtn) {
+	open(CRTN,">$crtn") or
+		    die "(fatal) Can't open $crtn$!";
+} else {
+    die "(fatal) Please give me a --asm argument$!";
+}
+
+while(<INITFINI>) {
+    if (/HEADER_ENDS/) {
+	$omitcrti = 1;
+	$omitcrtn = 1;
+	next;
+    }
+    if (/PROLOG_BEGINS/) {
+	$omitcrti = 0;
+	next;
+    }
+    if (/PROLOG_ENDS/) {
+	$omitcrti = 1;
+	next;
+    }
+    if (/EPILOG_BEGINS/) {
+	$omitcrtn = 0;
+	next;
+    }
+    if (/EPILOG_ENDS/) {
+	$omitcrtn = 1;
+	next;
+    }
+    if (/TRAILER_BEGINS/) {
+	$omitcrti = 0;
+	$omitcrtn = 0;
+	next;
+    }
+    if (/END_INIT/) {
+	if ($endp) {
+	    s/END_INIT/.endp _init/;
+	} else {
+	    if($end) {
+		s/END_INIT/.end _init/;
+	    } else {
+		s/END_INIT//;
+	    }
+	}
+    }
+    if (/END_FINI/) {
+	if ($endp) {
+	    s/END_FINI/.endp _fini/;
+	} else {
+	    if($end) {
+		s/END_FINI/.end _fini/;
+	    } else {
+		s/END_FINI//;
+	    }
+	}
+    }
+    if (/ALIGN/) {
+	if($alignval) {
+	    s/ALIGN/.align $alignval/;
+	} else {
+	    s/ALIGN//;
+	}
+    }
+    if (!$omitcrti) {
+	print CRTI;
+    }
+    if (!$omitcrtn) {
+	print CRTN;
+    }
+}
+close(INITFINI);
+close(CRTI);
+close(CRTN);
+
diff --git a/libc/Makefile b/libc/Makefile
index a393b6d9f..a4cb61396 100644
--- a/libc/Makefile
+++ b/libc/Makefile
@@ -38,7 +38,7 @@ $(LIBNAME): subdirs
 	$(CROSS)ranlib $(LIBNAME)
 	install -d $(TOPDIR)lib
 	rm -f $(TOPDIR)lib/$(LIBNAME)
-	install -m 644 crt0.o $(LIBNAME) $(TOPDIR)lib
+	install -m 644 $(LIBNAME) $(TOPDIR)lib
 
 shared: $(TOPDIR)lib/$(LIBNAME)
 	@rm -rf tmp
@@ -58,7 +58,7 @@ shared: $(TOPDIR)lib/$(LIBNAME)
 
 
 halfclean:
-	@rm -f $(LIBNAME) crt0.o uClibc_config.h
+	@rm -f $(LIBNAME) uClibc_config.h
 	@rm -f $(SHARED_FULLNAME) $(SHARED_MAJORNAME) uClibc-0.* libc.so*
 
 tags:
diff --git a/libc/sysdeps/linux/arm/Makefile b/libc/sysdeps/linux/arm/Makefile
index a4a4a720c..c5a96dea8 100644
--- a/libc/sysdeps/linux/arm/Makefile
+++ b/libc/sysdeps/linux/arm/Makefile
@@ -45,7 +45,7 @@ $(LIBC): ar-target
 
 ar-target: $(OBJS) $(CRT0_OBJ)
 	$(AR) $(ARFLAGS) $(LIBC) $(OBJS)
-	cp $(CRT0_OBJ) $(TOPDIR)libc/$(CRT0_OBJ)
+	cp $(CRT0_OBJ) $(TOPDIR)lib/$(CRT0_OBJ)
 
 $(CRT0_OBJ): $(CRT0)
 	$(CC) $(CFLAGS) -c $< -o $@
diff --git a/libc/sysdeps/linux/common/.cvsignore b/libc/sysdeps/linux/common/.cvsignore
new file mode 100644
index 000000000..2afad25b2
--- /dev/null
+++ b/libc/sysdeps/linux/common/.cvsignore
@@ -0,0 +1,3 @@
+crti.S
+crtn.S
+initfini.s
diff --git a/libc/sysdeps/linux/common/Makefile b/libc/sysdeps/linux/common/Makefile
index 8b23a5fad..009d0740d 100644
--- a/libc/sysdeps/linux/common/Makefile
+++ b/libc/sysdeps/linux/common/Makefile
@@ -42,7 +42,7 @@ all: $(STR_SYSCALLS) $(OBJ) $(LIBC)
 
 $(LIBC): ar-target
 
-ar-target: $(OBJ)
+ar-target: $(OBJ) crti.o crtn.o
 	$(AR) $(ARFLAGS) $(LIBC) $(OBJ)
 
 $(MOBJ): $(MSRC)
@@ -53,6 +53,20 @@ $(COBJS): %.o : %.c
 	$(CC) $(CFLAGS) -c $< -o $@
 	$(STRIPTOOL) -x -R .note -R .comment $*.o
 
+initfini.s: initfini.c
+	$(CC) $(CFLAGS) -c initfini.c -S -o initfini.s
+
+crti.S crtn.S: initfini.s
+	$(TOPDIR)/extra/scripts/initfini.pl
+
+crti.o: crti.S
+	$(CC) $(CFLAGS) -c crti.S -o crti.o
+	cp crti.o $(TOPDIR)lib/
+
+crtn.o: crtn.S
+	$(CC) $(CFLAGS) -c crtn.S -o crtn.o
+	cp crtn.o $(TOPDIR)lib/
+
 clean:
-	rm -f *.[oa] *~ core
+	rm -f *.[oa] *~ core crti.* crtn.* initfini.s
 
diff --git a/libc/sysdeps/linux/common/initfini.c b/libc/sysdeps/linux/common/initfini.c
new file mode 100644
index 000000000..147de8748
--- /dev/null
+++ b/libc/sysdeps/linux/common/initfini.c
@@ -0,0 +1,134 @@
+/* Special .init and .fini section support.
+   Copyright (C) 1995, 1996, 1997, 2000 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file with other
+   programs, and to distribute those programs without any restriction
+   coming from the use of this file.  (The GNU Lesser General Public
+   License restrictions do apply in other respects; for example, they
+   cover modification of the file, and distribution when not linked
+   into another program.)
+
+   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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* This file is compiled into assembly code which is then munged by a sed
+   script into two files: crti.s and crtn.s.
+
+   * crti.s puts a function prologue at the beginning of the
+   .init and .fini sections and defines global symbols for
+   those addresses, so they can be called as functions.
+
+   * crtn.s puts the corresponding function epilogues
+   in the .init and .fini sections. */
+
+#include <stdlib.h>
+
+#undef GMON_SUPPORT
+
+/* We use embedded asm for .section unconditionally, as this makes it
+   easier to insert the necessary directives into crtn.S. */
+#define SECTION(x) asm (".section " x )
+
+/* The initial common code ends here. */
+asm ("\n/*@HEADER_ENDS*/");
+
+/* To determine whether we need .end and .align: */
+//asm ("\n/*@TESTS_BEGIN*/");
+extern void dummy (void (*foo) (void));
+void
+dummy (void (*foo) (void))
+{
+  if (foo)
+    (*foo) ();
+}
+//asm ("\n/*@TESTS_END*/");
+
+/* The beginning of _init:  */
+asm ("\n/*@_init_PROLOG_BEGINS*/");
+
+#ifdef GMON_SUPPORT
+static void
+call_gmon_start(void)
+{
+  extern void __gmon_start__ (void) __attribute__ ((weak)); /*weak_extern (__gmon_start__);*/
+  void (*gmon_start) (void) = __gmon_start__;
+
+  if (gmon_start)
+    gmon_start ();
+}
+#endif
+
+SECTION (".init");
+extern void _init (void);
+void
+_init (void)
+{
+#ifdef GMON_SUPPORT
+  /* We cannot use the normal constructor mechanism in gcrt1.o because it
+     appears before crtbegin.o in the link, so the header elt of .ctors
+     would come after the elt for __gmon_start__.  One approach is for
+     gcrt1.o to reference a symbol which would be defined by some library
+     module which has a constructor; but then user code's constructors
+     would come first, and not be profiled.  */
+  call_gmon_start ();
+#endif
+
+  asm ("ALIGN");
+  asm("END_INIT");
+  /* Now the epilog. */
+  asm ("\n/*@_init_PROLOG_ENDS*/");
+  asm ("\n/*@_init_EPILOG_BEGINS*/");
+  SECTION(".init");
+}
+asm ("END_INIT");
+
+/* End of the _init epilog, beginning of the _fini prolog. */
+asm ("\n/*@_init_EPILOG_ENDS*/");
+asm ("\n/*@_fini_PROLOG_BEGINS*/");
+
+SECTION (".fini");
+extern void _fini (void);
+void
+_fini (void)
+{
+
+  /* End of the _fini prolog. */
+  asm ("ALIGN");
+  asm ("END_FINI");
+  asm ("\n/*@_fini_PROLOG_ENDS*/");
+
+  {
+    /* Let GCC know that _fini is not a leaf function by having a dummy
+       function call here.  We arrange for this call to be omitted from
+       either crt file.  */
+    extern void i_am_not_a_leaf (void);
+    i_am_not_a_leaf ();
+  }
+
+  /* Beginning of the _fini epilog. */
+  asm ("\n/*@_fini_EPILOG_BEGINS*/");
+  SECTION (".fini");
+}
+asm ("END_FINI");
+
+/* End of the _fini epilog.  Any further generated assembly (e.g. .ident)
+   is shared between both crt files. */
+asm ("\n/*@_fini_EPILOG_ENDS*/");
+asm ("\n/*@TRAILER_BEGINS*/");
+
+/* End of file. */
diff --git a/libc/sysdeps/linux/h8300/Makefile b/libc/sysdeps/linux/h8300/Makefile
index d6c7a8a1a..68093e132 100644
--- a/libc/sysdeps/linux/h8300/Makefile
+++ b/libc/sysdeps/linux/h8300/Makefile
@@ -45,7 +45,7 @@ $(LIBC): ar-target
 
 ar-target: $(OBJS) $(CRT0_OBJ)
 	$(AR) $(ARFLAGS) $(LIBC) $(OBJS)
-	cp $(CRT0_OBJ) $(TOPDIR)libc/$(CRT0_OBJ)
+	cp $(CRT0_OBJ) $(TOPDIR)lib/$(CRT0_OBJ)
 
 $(CRT0_OBJ): %.o : %.S
 	$(CC) $(CFLAGS) -c $< -o $@
diff --git a/libc/sysdeps/linux/i386/Makefile b/libc/sysdeps/linux/i386/Makefile
index cda41533a..c15751ee1 100644
--- a/libc/sysdeps/linux/i386/Makefile
+++ b/libc/sysdeps/linux/i386/Makefile
@@ -54,7 +54,7 @@ $(LIBC): ar-target
 
 ar-target: $(OBJS) $(CRT0_OBJ)
 	$(AR) $(ARFLAGS) $(LIBC) $(OBJS)
-	cp $(CRT0_OBJ) $(TOPDIR)libc/$(CRT0_OBJ)
+	cp $(CRT0_OBJ) $(TOPDIR)lib/$(CRT0_OBJ)
 
 ifeq ($(USE_CRT0_C),true)
 $(CRT0_OBJ): %.o : %.c
diff --git a/libc/sysdeps/linux/m68k/Makefile b/libc/sysdeps/linux/m68k/Makefile
index b8abb2a09..5954b8df4 100644
--- a/libc/sysdeps/linux/m68k/Makefile
+++ b/libc/sysdeps/linux/m68k/Makefile
@@ -52,7 +52,7 @@ $(LIBC): ar-target
 
 ar-target: $(OBJS) $(CRT0_OBJ)
 	$(AR) $(ARFLAGS) $(LIBC) $(OBJS)
-	cp $(CRT0_OBJ) $(TOPDIR)libc/$(CRT0_OBJ)
+	cp $(CRT0_OBJ) $(TOPDIR)lib/$(CRT0_OBJ)
 
 ifeq ($(HAS_MMU),true)
 $(CRT0_OBJ): %.o : %.c
diff --git a/libc/sysdeps/linux/mips/Makefile b/libc/sysdeps/linux/mips/Makefile
index 91d81c305..175271c9e 100644
--- a/libc/sysdeps/linux/mips/Makefile
+++ b/libc/sysdeps/linux/mips/Makefile
@@ -45,7 +45,7 @@ $(LIBC): ar-target
 
 ar-target: $(OBJS) $(CRT0_OBJ)
 	$(AR) $(ARFLAGS) $(LIBC) $(OBJS)
-	cp $(CRT0_OBJ) $(TOPDIR)libc
+	cp $(CRT0_OBJ) $(TOPDIR)lib/
 
 
 $(CRT0_OBJ): %.o : %.S
diff --git a/libc/sysdeps/linux/powerpc/Makefile b/libc/sysdeps/linux/powerpc/Makefile
index 83b70d5a2..a351fe1f9 100644
--- a/libc/sysdeps/linux/powerpc/Makefile
+++ b/libc/sysdeps/linux/powerpc/Makefile
@@ -52,7 +52,7 @@ $(LIBC): ar-target
 
 ar-target: $(OBJS) $(CRT0_OBJ)
 	$(AR) $(ARFLAGS) $(LIBC) $(OBJS)
-	cp $(CRT0_OBJ) $(TOPDIR)libc
+	cp $(CRT0_OBJ) $(TOPDIR)lib/
 
 
 ifeq ($(USE_CRT0_C),y)
diff --git a/libc/sysdeps/linux/sh/Makefile b/libc/sysdeps/linux/sh/Makefile
index 87fbbbfcd..6ff7f87e3 100644
--- a/libc/sysdeps/linux/sh/Makefile
+++ b/libc/sysdeps/linux/sh/Makefile
@@ -47,7 +47,7 @@ $(LIBC): ar-target
 
 ar-target: $(OBJS) $(CRT0_OBJ)
 	$(AR) $(ARFLAGS) $(LIBC) $(OBJS)
-	cp $(CRT0_OBJ) $(TOPDIR)libc/$(CRT0_OBJ)
+	cp $(CRT0_OBJ) $(TOPDIR)lib/$(CRT0_OBJ)
 
 $(CRT0_OBJ): %.o : %.S
 	$(CC) $(SFLAGS) -c $< -o $@
diff --git a/libc/sysdeps/linux/sparc/Makefile b/libc/sysdeps/linux/sparc/Makefile
index 150a421ac..d57e1ea5e 100644
--- a/libc/sysdeps/linux/sparc/Makefile
+++ b/libc/sysdeps/linux/sparc/Makefile
@@ -45,7 +45,7 @@ $(LIBC): ar-target
 
 ar-target: $(OBJS) $(CRT0_OBJ)
 	$(AR) $(ARFLAGS) $(LIBC) $(OBJS)
-	cp $(CRT0_OBJ) $(TOPDIR)libc/$(CRT0_OBJ)
+	cp $(CRT0_OBJ) $(TOPDIR)lib/$(CRT0_OBJ)
 
 $(CRT0_OBJ): %.o : %.c
 	$(CC) $(CFLAGS) -c $< -o $@
diff --git a/libc/sysdeps/linux/v850/Makefile b/libc/sysdeps/linux/v850/Makefile
index bed12d8d9..8ef679b92 100644
--- a/libc/sysdeps/linux/v850/Makefile
+++ b/libc/sysdeps/linux/v850/Makefile
@@ -48,7 +48,7 @@ $(LIBC): ar-target
 
 ar-target: $(OBJS) $(CRT0_OBJ)
 	$(AR) $(ARFLAGS) $(LIBC) $(OBJS)
-	cp $(CRT0_OBJ) $(TOPDIR)libc/$(CRT0_OBJ)
+	cp $(CRT0_OBJ) $(TOPDIR)lib/$(CRT0_OBJ)
 
 $(CRT0_OBJ): %.o : %.S
 	$(CC) $(SFLAGS) -c $< -o $@