[PATCH] ppc32: Kill embedded system.map, use kallsyms

This patch kills the whole embedded System.map mecanism and the
bootloader-passed System.map that was used to provide symbol resolution in
xmon.  Instead, xmon now uses kallsyms like ppc64 does.

No hurry getting that in Linus tree, let it be tested in -mm for a while
first and make sure it doesn't break various embedded configs.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 1 insertions, 20 deletions

diff --git a/arch/ppc/boot/openfirmware/Makefile b/arch/ppc/boot/openfirmware/Makefile
index 4eacbd8c772a..03415238fabf 100644
--- a/arch/ppc/boot/openfirmware/Makefile
+++ b/arch/ppc/boot/openfirmware/Makefile
@@ -54,13 +54,10 @@ $(images)/ramdisk.image.gz:
         @echo '          RAM disk image must be provided separately'
         @/bin/false
 
-objcpxmon-$(CONFIG_XMON) := --add-section=.sysmap=System.map \
-        --set-section-flags=.sysmap=contents,alloc,load,readonly,data
 quiet_cmd_genimage = GEN     $@
       cmd_genimage = $(OBJCOPY) -R .comment       \
         --add-section=.image=$(images)/vmlinux.gz \
-        --set-section-flags=.image=contents,alloc,load,readonly,data \
-        $(objcpxmon-y) $< $@
+        --set-section-flags=.image=contents,alloc,load,readonly,data $< $@
 
 targets += image.o
 $(obj)/image.o: $(obj)/dummy.o $(images)/vmlinux.gz FORCE
diff --git a/arch/ppc/boot/openfirmware/common.c b/arch/ppc/boot/openfirmware/common.c
index 9e6952781f1f..0f46756a903e 100644
--- a/arch/ppc/boot/openfirmware/common.c
+++ b/arch/ppc/boot/openfirmware/common.c
@@ -15,7 +15,6 @@
 #include <asm/page.h>
 
 /* Information from the linker */
-extern char __sysmap_begin, __sysmap_end;
 
 extern int strcmp(const char *s1, const char *s2);
 extern char *avail_ram, *avail_high;
@@ -116,14 +115,8 @@ void gunzip(void *dst, int dstlen, unsigned char *src, int *lenp)
 void make_bi_recs(unsigned long addr, char *name, unsigned int mach,
                 unsigned long progend)
 {
-        unsigned long sysmap_size;
         struct bi_record *rec;
 
-        /* Figure out the size of a possible System.map we're going to
-         * pass along.
-         * */
-        sysmap_size = (unsigned long)(&__sysmap_end) -
-                (unsigned long)(&__sysmap_begin);
 
         /* leave a 1MB gap then align to the next 1MB boundary */
         addr = _ALIGN(addr+ (1<<20) - 1, (1<<20));
@@ -147,15 +140,6 @@ void make_bi_recs(unsigned long addr, char *name, unsigned int mach,
         rec->size = sizeof(struct bi_record) + 2 * sizeof(unsigned long);
         rec = (struct bi_record *)((unsigned long)rec + rec->size);
 
-        if (sysmap_size) {
-                rec->tag = BI_SYSMAP;
-                rec->data[0] = (unsigned long)(&__sysmap_begin);
-                rec->data[1] = sysmap_size;
-                rec->size = sizeof(struct bi_record) + 2 *
-                        sizeof(unsigned long);
-                rec = (struct bi_record *)((unsigned long)rec + rec->size);
-        }
-
         rec->tag = BI_LAST;
         rec->size = sizeof(struct bi_record);
         rec = (struct bi_record *)((unsigned long)rec + rec->size);