2002-11-08 Jeff Johnston <jjohnstn@redhat.com>

* arm/Makefile.in: Add support for new pid specs.
        * arm/coff-iq80310.specs: Change to allow future support.
        * arm/elf-iq80310.specs: Ditto.
        * arm/elf-redboot.specs: Ditto.
        * arm/coff-redboot.ld: Add EH frame support.
        * arm/redboot-crt0.S: Add optional code to clear bss without
        memset.
        * arm/coff-pid.specs: New file.
        * arm/elf-pid.specs: New file.

libgloss/ChangeLog

@@ -1,3 +1,15 @@
+2002-11-08 Jeff Johnston  <jjohnstn@redhat.com> 
+
+	* arm/Makefile.in: Add support for new pid specs.
+	* arm/coff-iq80310.specs: Change to allow future support.
+	* arm/elf-iq80310.specs: Ditto.
+	* arm/elf-redboot.specs: Ditto.
+	* arm/coff-redboot.ld: Add EH frame support.
+	* arm/redboot-crt0.S: Add optional code to clear bss without
+	memset.
+	* arm/coff-pid.specs: New file.
+	* arm/elf-pid.specs: New file.
+
 2002-11-08 Jeff Johnston  <jjohnstn@redhat.com> 
 	   Catherine Moore  <clm@redhat.com>
 

libgloss/arm/Makefile.in

@@ -47,15 +47,19 @@ OBJCOPY = `if [ -f ${objroot}/../binutils/objcopy ] ; \
 	then echo ${objroot}/../binutils/objcopy ; \
 	else t='$(program_transform_name)'; echo objcopy | sed -e $$t ; fi`
 
-REDBOOT_OBJS	= redboot-crt0.o redboot-syscalls.o
+REDBOOT_OBJS	= redboot-crt0.o  redboot-syscalls.o
 REDBOOT_SCRIPTS	= redboot.ld redboot.specs
 REDBOOT_INSTALL	= install-redboot
 CFLAGS		= -g
 
-# Here is specific eval board stuff
+# Here is all of the eval board stuff
+PID_SCRIPTS	= pid.specs
+PID_INSTALL	= install-pid
+
 IQ80310_SCRIPTS	= iq80310.specs
 IQ80310_INSTALL	= install-iq80310
 
+
 # Host specific makefile fragment comes in here.
 @host_makefile_frag@
 
@@ -82,13 +86,16 @@ distclean maintainer-clean realclean: clean
 	rm -f Makefile config.status *~
 
 .PHONY: install info install-info clean-info
-install: ${REDBOOT_INSTALL} ${IQ80310_INSTALL}
+install: ${REDBOOT_INSTALL} ${IQ80310_INSTALL}  ${PID_INSTALL}
 
 
 install-redboot:
 	set -e; for x in ${REDBOOT_OBJS}; do ${INSTALL_DATA} $$x ${tooldir}/lib${MULTISUBDIR}/$$x; done
 	set -e; for x in ${REDBOOT_SCRIPTS}; do ${INSTALL_DATA} ${srcdir}/${objtype}$$x ${tooldir}/lib${MULTISUBDIR}/$$x; done
 
+install-pid:
+	set -e; for x in ${PID_SCRIPTS}; do ${INSTALL_DATA} ${srcdir}/${objtype}$$x ${tooldir}/lib${MULTISUBDIR}/$$x; done
+
 install-iq80310:
 	set -e; for x in ${IQ80310_SCRIPTS}; do ${INSTALL_DATA} ${srcdir}/${objtype}$$x ${tooldir}/lib${MULTISUBDIR}/$$x; done
 

libgloss/arm/coff-iq80310.specs

@@ -4,5 +4,5 @@
 -T redboot.ld%s -Ttext 0xA0020000 %(old_link)
 
 *startfile:
-redboot-crt0%O%s redboot-syscalls%O%s
+%{!pg:redboot-crt0%O%s} %{pg:redboot-crt0%O%s} redboot-syscalls%O%s
 

libgloss/arm/coff-pid.specs

@@ -0,0 +1,8 @@
+%rename link                old_link
+
+*link:
+-T redboot.ld%s -Ttext 0x10000 %(old_link)
+
+*startfile:
+redboot-crt0%O%s redboot-syscalls%O%s
+

libgloss/arm/coff-redboot.ld

@@ -9,7 +9,7 @@ SECTIONS
      present): */
   .text  0x8000 : {
     *(.init)
-    *(.text)
+    *(.text*)
     *(.glue_7t)
     *(.glue_7)
     *(.rdata)
@@ -23,7 +23,12 @@ SECTIONS
   }
   .data 0x40000 + (. & 0xfffc0fff) : {
       __data_start__ = . ;
-    *(.data)
+    *(.data*)
+    *(.gcc_exc*)
+    ___EH_FRAME_BEGIN__ = . ;
+    *(.eh_fram*)
+    ___EH_FRAME_END__ = . ;
+    LONG(0);
      __data_end__ = . ;
      edata  =  .;
      _edata  =  .;

libgloss/arm/elf-iq80310.specs

@@ -4,5 +4,5 @@
 -T redboot.ld%s -Ttext 0xA0020000 %(old_link)
 
 *startfile:
-crti%O%s crtbegin%O%s redboot-crt0%O%s redboot-syscalls%O%s
+crti%O%s crtbegin%O%s %{!pg:redboot-crt0%O%s} %{pg:redboot-crt0%O%s} redboot-syscalls%O%s
 

libgloss/arm/elf-pid.specs

@@ -0,0 +1,8 @@
+%rename link                old_link
+
+*link:
+-T redboot.ld%s -Ttext 0x10000 %(old_link)
+
+*startfile:
+crti%O%s crtbegin%O%s %{!pg:redboot-crt0%O%s} %{pg:redboot-crt0%O%s} redboot-syscalls%O%s
+

libgloss/arm/elf-redboot.specs

@@ -4,5 +4,5 @@
 -T redboot.ld%s -Ttext 0x20000 %(old_link)
 
 *startfile:
-crti%O%s crtbegin%O%s redboot-crt0%O%s redboot-syscalls%O%s
+crti%O%s crtbegin%O%s %{!pg:redboot-crt0%O%s} %{pg:redboot-crt0%O%s} redboot-syscalls%O%s
 

libgloss/arm/redboot-crt0.S

@@ -1,4 +1,3 @@
-
 	
     .file   "crt0.S"
 	
@@ -12,30 +11,44 @@
 #endif
 
     .text
-     /*
+     /* Setup the assembly entry point.  */
-      * Setup the assembly entry point.
-      */
     .code 32
     .globl SYM_NAME(start)
     .globl SYM_NAME(_start)
 SYM_NAME(start):
 SYM_NAME(_start):
-	mov	fp, #0	/* Null frame pointer */
+	mov	fp, #0	/* Null frame pointer.  */
-	mov	r7, #0	/* Null frame pointer for Thumb */
+	mov	r7, #0	/* Null frame pointer for Thumb.  */
 
-	/* enable interrupts for gdb debugging */
+	/* Enable interrupts for gdb debugging.  */
 	mrs    r0, cpsr
 	bic    r0, r0, #0xC0
 	msr    cpsr, r0
 	
-	mov 	a2, #0			/* Second arg: fill value */
+	mov 	a2, #0			/* Second arg: fill value.  */
-	ldr	a1, .LC1		/* First arg: start of memory block */
+	ldr	a1, .LC1		/* First arg: start of memory block.  */
 	ldr	a3, .LC2	
-	sub	a3, a3, a1		/* Third arg: length of block */
+	sub	a3, a3, a1		/* Third arg: length of block.  */
 
-#ifdef __thumb__		/* Enter Thumb mode.... */
+#ifdef	GCRT0
-	add	a4, pc, #1	/* Get the address of the Thumb block */
+	/* Zero out the bss without using memset. 
-	bx	a4		/* Go there and start Thumb decoding  */
+	   Using memset is bad because it may be instrumented for
+	   profiling, but at this point, the profiling data structures
+	   have not been set up. 
+	   FIXME: This loop could be a lot more efficient.  */
+	subs	a3, a3, #0
+	beq	2f
+1:	strb	a2, [a1]
+	subs	a3, a3, #1
+	add	a1, a1, #1
+	bne	1b
+2:	
+	/* Nothing to left to clear.  */
+#endif
+
+#ifdef __thumb__		/* Enter Thumb mode. */
+	add	a4, pc, #1	/* Get the address of the Thumb block.  */
+	bx	a4		/* Go there and start Thumb decoding.   */
 
 	.code 16
 	.global __change_mode
@@ -43,8 +56,9 @@ SYM_NAME(_start):
 __change_mode:	
 #endif
 
+#ifndef	GCRT0
 	bl	SYM_NAME(memset)
-	
+#endif
 	bl	SYM_NAME(__get_memtop)
 	sub	r0, r0, #32
 	mov	sp, r0
@@ -76,7 +90,6 @@ __change_mode:
 .Lfini:
 	.word	SYM_NAME(_fini)
 #endif
-	
 #if 0
 #ifdef __thumb__
 	.code 16