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authorSam Ravnborg <sam@ravnborg.org>2012-05-14 19:35:50 +0200
committerDavid S. Miller <davem@davemloft.net>2012-05-14 14:05:10 -0700
commit51f19cfa76d7d20ec767719a427e3d4f450fd5de (patch)
tree127918024b3282271585422d0365ae2524f7bcf0 /arch/sparc/boot
parent50544bce4c46561fe9d3f817941bd95d8ae6fedd (diff)
downloadlinux-51f19cfa76d7d20ec767719a427e3d4f450fd5de.tar.gz
sparc32: drop build time btfixup patching
Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/boot')
-rw-r--r--arch/sparc/boot/Makefile61
-rw-r--r--arch/sparc/boot/btfixupprep.c386
2 files changed, 10 insertions, 437 deletions
diff --git a/arch/sparc/boot/Makefile b/arch/sparc/boot/Makefile
index d56d199c1aa8..6e63afb128d9 100644
--- a/arch/sparc/boot/Makefile
+++ b/arch/sparc/boot/Makefile
@@ -6,8 +6,8 @@
ROOT_IMG := /usr/src/root.img
ELFTOAOUT := elftoaout
-hostprogs-y := piggyback btfixupprep
-targets := tftpboot.img btfix.o btfix.S image zImage vmlinux.aout
+hostprogs-y := piggyback
+targets := tftpboot.img image zImage vmlinux.aout
clean-files := System.map
quiet_cmd_elftoaout = ELFTOAOUT $@
@@ -17,58 +17,9 @@ quiet_cmd_piggy = PIGGY $@
quiet_cmd_strip = STRIP $@
cmd_strip = $(STRIP) -R .comment -R .note -K sun4u_init -K _end -K _start $< -o $@
-ifeq ($(CONFIG_SPARC32),y)
-quiet_cmd_btfix = BTFIX $@
- cmd_btfix = $(OBJDUMP) -x vmlinux | $(obj)/btfixupprep > $@
-quiet_cmd_sysmap = SYSMAP $(obj)/System.map
- cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap
-quiet_cmd_image = LD $@
- cmd_image = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LDFLAGS_$(@F)) -o $@
-
-define rule_image
- $(if $($(quiet)cmd_image), \
- echo ' $($(quiet)cmd_image)' &&) \
- $(cmd_image); \
- $(if $($(quiet)cmd_sysmap), \
- echo ' $($(quiet)cmd_sysmap)' &&) \
- $(cmd_sysmap) $@ $(obj)/System.map; \
- if [ $$? -ne 0 ]; then \
- rm -f $@; \
- /bin/false; \
- fi; \
- echo 'cmd_$@ := $(cmd_image)' > $(@D)/.$(@F).cmd
-endef
-
-BTOBJS := $(patsubst %/, %/built-in.o, $(VMLINUX_INIT))
-BTLIBS := $(patsubst %/, %/built-in.o, $(VMLINUX_MAIN))
-LDFLAGS_image := -T arch/sparc/kernel/vmlinux.lds $(BTOBJS) \
- --start-group $(BTLIBS) --end-group \
- $(kallsyms.o) $(obj)/btfix.o
-
-# Link the final image including btfixup'ed symbols.
-# This is a replacement for the link done in the top-level Makefile.
-# Note: No dependency on the prerequisite files since that would require
-# make to try check if they are updated - and due to changes
-# in gcc options (path for example) this would result in
-# these files being recompiled for each build.
-$(obj)/image: $(obj)/btfix.o FORCE
- $(call if_changed_rule,image)
-
-$(obj)/zImage: $(obj)/image
- $(call if_changed,strip)
- @echo ' kernel: $@ is ready'
-
-$(obj)/btfix.S: $(obj)/btfixupprep vmlinux FORCE
- $(call if_changed,btfix)
-
-endif
-
ifeq ($(CONFIG_SPARC64),y)
# Actual linking
-$(obj)/image: vmlinux FORCE
- $(call if_changed,strip)
- @echo ' kernel: $@ is ready'
$(obj)/zImage: $(obj)/image
$(call if_changed,gzip)
@@ -79,6 +30,10 @@ $(obj)/vmlinux.aout: vmlinux FORCE
@echo ' kernel: $@ is ready'
else
+$(obj)/zImage: $(obj)/image
+ $(call if_changed,strip)
+ @echo ' kernel: $@ is ready'
+
# The following lines make a readable image for U-Boot.
# uImage - Binary file read by U-boot
# uImage.o - object file of uImage for loading with a
@@ -107,6 +62,10 @@ $(obj)/uImage: $(obj)/image.gz
endif
+$(obj)/image: vmlinux FORCE
+ $(call if_changed,strip)
+ @echo ' kernel: $@ is ready'
+
$(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback System.map $(ROOT_IMG) FORCE
$(call if_changed,elftoaout)
$(call if_changed,piggy)
diff --git a/arch/sparc/boot/btfixupprep.c b/arch/sparc/boot/btfixupprep.c
deleted file mode 100644
index da031159e2b7..000000000000
--- a/arch/sparc/boot/btfixupprep.c
+++ /dev/null
@@ -1,386 +0,0 @@
-/*
- Simple utility to prepare vmlinux image for sparc.
- Resolves all BTFIXUP uses and settings and creates
- a special .s object to link to the image.
-
- Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-#include <stdio.h>
-#include <string.h>
-#include <ctype.h>
-#include <errno.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <malloc.h>
-
-#define MAXSYMS 1024
-
-static char *symtab = "SYMBOL TABLE:";
-static char *relrec = "RELOCATION RECORDS FOR [";
-static int rellen;
-static int symlen;
-int mode;
-
-struct _btfixup;
-
-typedef struct _btfixuprel {
- char *sect;
- unsigned long offset;
- struct _btfixup *f;
- int frel;
- struct _btfixuprel *next;
-} btfixuprel;
-
-typedef struct _btfixup {
- int type;
- int setinitval;
- unsigned int initval;
- char *initvalstr;
- char *name;
- btfixuprel *rel;
-} btfixup;
-
-btfixup array[MAXSYMS];
-int last = 0;
-char buffer[1024];
-unsigned long lastfoffset = -1;
-unsigned long lastfrelno;
-btfixup *lastf;
-
-static void fatal(void) __attribute__((noreturn));
-static void fatal(void)
-{
- fprintf(stderr, "Malformed output from objdump\n%s\n", buffer);
- exit(1);
-}
-
-static btfixup *find(int type, char *name)
-{
- int i;
- for (i = 0; i < last; i++) {
- if (array[i].type == type && !strcmp(array[i].name, name))
- return array + i;
- }
- array[last].type = type;
- array[last].name = strdup(name);
- array[last].setinitval = 0;
- if (!array[last].name) fatal();
- array[last].rel = NULL;
- last++;
- if (last >= MAXSYMS) {
- fprintf(stderr, "Ugh. Something strange. More than %d different BTFIXUP symbols\n", MAXSYMS);
- exit(1);
- }
- return array + last - 1;
-}
-
-static void set_mode (char *buffer)
-{
- for (mode = 0;; mode++)
- if (buffer[mode] < '0' || buffer[mode] > '9')
- break;
- if (mode != 8 && mode != 16)
- fatal();
-}
-
-
-int main(int argc,char **argv)
-{
- char *p, *q;
- char *sect;
- int i, j, k;
- unsigned int initval;
- int shift;
- btfixup *f;
- btfixuprel *r, **rr;
- unsigned long offset;
- char *initvalstr;
-
- symlen = strlen(symtab);
- while (fgets (buffer, 1024, stdin) != NULL)
- if (!strncmp (buffer, symtab, symlen))
- goto main0;
- fatal();
-main0:
- rellen = strlen(relrec);
- while (fgets (buffer, 1024, stdin) != NULL)
- if (!strncmp (buffer, relrec, rellen))
- goto main1;
- fatal();
-main1:
- sect = malloc(strlen (buffer + rellen) + 1);
- if (!sect) fatal();
- strcpy (sect, buffer + rellen);
- p = strchr (sect, ']');
- if (!p) fatal();
- *p = 0;
- if (fgets (buffer, 1024, stdin) == NULL)
- fatal();
- while (fgets (buffer, 1024, stdin) != NULL) {
- int nbase;
- if (!strncmp (buffer, relrec, rellen))
- goto main1;
- if (mode == 0)
- set_mode (buffer);
- p = strchr (buffer, '\n');
- if (p) *p = 0;
- if (strlen (buffer) < 22+mode)
- continue;
- if (strncmp (buffer + mode, " R_SPARC_", 9))
- continue;
- nbase = 27 - 8 + mode;
- if (buffer[nbase] != '_' || buffer[nbase+1] != '_' || buffer[nbase+2] != '_')
- continue;
- switch (buffer[nbase+3]) {
- case 'f': /* CALL */
- case 'b': /* BLACKBOX */
- case 's': /* SIMM13 */
- case 'a': /* HALF */
- case 'h': /* SETHI */
- case 'i': /* INT */
- break;
- default:
- continue;
- }
- p = strchr (buffer + nbase+5, '+');
- if (p) *p = 0;
- shift = nbase + 5;
- if (buffer[nbase+4] == 's' && buffer[nbase+5] == '_') {
- shift = nbase + 6;
- if (strcmp (sect, ".init.text")) {
- fprintf(stderr,
- "Wrong use of '%s' BTFIXUPSET in '%s' section.\n"
- "BTFIXUPSET_CALL can be used only in"
- " __init sections\n",
- buffer + shift, sect);
- exit(1);
- }
- } else if (buffer[nbase+4] != '_')
- continue;
- if (!strcmp (sect, ".text.exit"))
- continue;
- if (strcmp (sect, ".text") &&
- strcmp (sect, ".init.text") &&
- strcmp (sect, ".fixup") &&
- (strcmp (sect, "__ksymtab") || buffer[nbase+3] != 'f')) {
- if (buffer[nbase+3] == 'f')
- fprintf(stderr,
- "Wrong use of '%s' in '%s' section.\n"
- " It can be used only in .text, .init.text,"
- " .fixup and __ksymtab\n",
- buffer + shift, sect);
- else
- fprintf(stderr,
- "Wrong use of '%s' in '%s' section.\n"
- " It can be only used in .text, .init.text,"
- " and .fixup\n", buffer + shift, sect);
- exit(1);
- }
- p = strstr (buffer + shift, "__btset_");
- if (p && buffer[nbase+4] == 's') {
- fprintf(stderr, "__btset_ in BTFIXUP name can only be used when defining the variable, not for setting\n%s\n", buffer);
- exit(1);
- }
- initval = 0;
- initvalstr = NULL;
- if (p) {
- if (p[8] != '0' || p[9] != 'x') {
- fprintf(stderr, "Pre-initialized values can be only initialized with hexadecimal constants starting 0x\n%s\n", buffer);
- exit(1);
- }
- initval = strtoul(p + 10, &q, 16);
- if (*q || !initval) {
- fprintf(stderr, "Pre-initialized values can be only in the form name__btset_0xXXXXXXXX where X are hex digits.\nThey cannot be name__btset_0x00000000 though. Use BTFIXUPDEF_XX instead of BTFIXUPDEF_XX_INIT then.\n%s\n", buffer);
- exit(1);
- }
- initvalstr = p + 10;
- *p = 0;
- }
- f = find(buffer[nbase+3], buffer + shift);
- if (buffer[nbase+4] == 's')
- continue;
- switch (buffer[nbase+3]) {
- case 'f':
- if (initval) {
- fprintf(stderr, "Cannot use pre-initialized fixups for calls\n%s\n", buffer);
- exit(1);
- }
- if (!strcmp (sect, "__ksymtab")) {
- if (strncmp (buffer + mode+9, "32 ", 10)) {
- fprintf(stderr, "BTFIXUP_CALL in EXPORT_SYMBOL results in relocation other than R_SPARC_32\n\%s\n", buffer);
- exit(1);
- }
- } else if (strncmp (buffer + mode+9, "WDISP30 ", 10) &&
- strncmp (buffer + mode+9, "HI22 ", 10) &&
- strncmp (buffer + mode+9, "LO10 ", 10)) {
- fprintf(stderr, "BTFIXUP_CALL results in relocation other than R_SPARC_WDISP30, R_SPARC_HI22 or R_SPARC_LO10\n%s\n", buffer);
- exit(1);
- }
- break;
- case 'b':
- if (initval) {
- fprintf(stderr, "Cannot use pre-initialized fixups for blackboxes\n%s\n", buffer);
- exit(1);
- }
- if (strncmp (buffer + mode+9, "HI22 ", 10)) {
- fprintf(stderr, "BTFIXUP_BLACKBOX results in relocation other than R_SPARC_HI22\n%s\n", buffer);
- exit(1);
- }
- break;
- case 's':
- if (initval + 0x1000 >= 0x2000) {
- fprintf(stderr, "Wrong initializer for SIMM13. Has to be from $fffff000 to $00000fff\n%s\n", buffer);
- exit(1);
- }
- if (strncmp (buffer + mode+9, "13 ", 10)) {
- fprintf(stderr, "BTFIXUP_SIMM13 results in relocation other than R_SPARC_13\n%s\n", buffer);
- exit(1);
- }
- break;
- case 'a':
- if (initval + 0x1000 >= 0x2000 && (initval & 0x3ff)) {
- fprintf(stderr, "Wrong initializer for HALF.\n%s\n", buffer);
- exit(1);
- }
- if (strncmp (buffer + mode+9, "13 ", 10)) {
- fprintf(stderr, "BTFIXUP_HALF results in relocation other than R_SPARC_13\n%s\n", buffer);
- exit(1);
- }
- break;
- case 'h':
- if (initval & 0x3ff) {
- fprintf(stderr, "Wrong initializer for SETHI. Cannot have set low 10 bits\n%s\n", buffer);
- exit(1);
- }
- if (strncmp (buffer + mode+9, "HI22 ", 10)) {
- fprintf(stderr, "BTFIXUP_SETHI results in relocation other than R_SPARC_HI22\n%s\n", buffer);
- exit(1);
- }
- break;
- case 'i':
- if (initval) {
- fprintf(stderr, "Cannot use pre-initialized fixups for INT\n%s\n", buffer);
- exit(1);
- }
- if (strncmp (buffer + mode+9, "HI22 ", 10) && strncmp (buffer + mode+9, "LO10 ", 10)) {
- fprintf(stderr, "BTFIXUP_INT results in relocation other than R_SPARC_HI22 and R_SPARC_LO10\n%s\n", buffer);
- exit(1);
- }
- break;
- }
- if (!f->setinitval) {
- f->initval = initval;
- if (initvalstr) {
- f->initvalstr = strdup(initvalstr);
- if (!f->initvalstr) fatal();
- }
- f->setinitval = 1;
- } else if (f->initval != initval) {
- fprintf(stderr, "Btfixup %s previously used with initializer %s which doesn't match with current initializer\n%s\n",
- f->name, f->initvalstr ? : "0x00000000", buffer);
- exit(1);
- } else if (initval && strcmp(f->initvalstr, initvalstr)) {
- fprintf(stderr, "Btfixup %s previously used with initializer %s which doesn't match with current initializer.\n"
- "Initializers have to match literally as well.\n%s\n",
- f->name, f->initvalstr, buffer);
- exit(1);
- }
- offset = strtoul(buffer, &q, 16);
- if (q != buffer + mode || (!offset && (mode == 8 ? strncmp (buffer, "00000000 ", 9) : strncmp (buffer, "0000000000000000 ", 17)))) {
- fprintf(stderr, "Malformed relocation address in\n%s\n", buffer);
- exit(1);
- }
- for (k = 0, r = f->rel, rr = &f->rel; r; rr = &r->next, r = r->next, k++)
- if (r->offset == offset && !strcmp(r->sect, sect)) {
- fprintf(stderr, "Ugh. One address has two relocation records\n");
- exit(1);
- }
- *rr = malloc(sizeof(btfixuprel));
- if (!*rr) fatal();
- (*rr)->offset = offset;
- (*rr)->f = NULL;
- if (buffer[nbase+3] == 'f') {
- lastf = f;
- lastfoffset = offset;
- lastfrelno = k;
- } else if (lastfoffset + 4 == offset) {
- (*rr)->f = lastf;
- (*rr)->frel = lastfrelno;
- }
- (*rr)->sect = sect;
- (*rr)->next = NULL;
- }
- printf("! Generated by btfixupprep. Do not edit.\n\n");
- printf("\t.section\t\".data..init\",#alloc,#write\n\t.align\t4\n\n");
- printf("\t.global\t___btfixup_start\n___btfixup_start:\n\n");
- for (i = 0; i < last; i++) {
- f = array + i;
- printf("\t.global\t___%cs_%s\n", f->type, f->name);
- if (f->type == 'f')
- printf("___%cs_%s:\n\t.word 0x%08x,0,0,", f->type, f->name, f->type << 24);
- else
- printf("___%cs_%s:\n\t.word 0x%08x,0,", f->type, f->name, f->type << 24);
- for (j = 0, r = f->rel; r != NULL; j++, r = r->next);
- if (j)
- printf("%d\n\t.word\t", j * 2);
- else
- printf("0\n");
- for (r = f->rel, j--; r != NULL; j--, r = r->next) {
- if (!strcmp (r->sect, ".text"))
- printf ("_stext+0x%08lx", r->offset);
- else if (!strcmp (r->sect, ".init.text"))
- printf ("__init_begin+0x%08lx", r->offset);
- else if (!strcmp (r->sect, "__ksymtab"))
- printf ("__start___ksymtab+0x%08lx", r->offset);
- else if (!strcmp (r->sect, ".fixup"))
- printf ("__start___fixup+0x%08lx", r->offset);
- else
- fatal();
- if (f->type == 'f' || !r->f)
- printf (",0");
- else
- printf (",___fs_%s+0x%08x", r->f->name, (4 + r->frel*2)*4 + 4);
- if (j) printf (",");
- else printf ("\n");
- }
- printf("\n");
- }
- printf("\n\t.global\t___btfixup_end\n___btfixup_end:\n");
- printf("\n\n! Define undefined references\n\n");
- for (i = 0; i < last; i++) {
- f = array + i;
- if (f->type == 'f') {
- printf("\t.global\t___f_%s\n", f->name);
- printf("___f_%s:\n", f->name);
- }
- }
- printf("\tretl\n\t nop\n\n");
- for (i = 0; i < last; i++) {
- f = array + i;
- if (f->type != 'f') {
- if (!f->initval) {
- printf("\t.global\t___%c_%s\n", f->type, f->name);
- printf("___%c_%s = 0\n", f->type, f->name);
- } else {
- printf("\t.global\t___%c_%s__btset_0x%s\n", f->type, f->name, f->initvalstr);
- printf("___%c_%s__btset_0x%s = 0x%08x\n", f->type, f->name, f->initvalstr, f->initval);
- }
- }
- }
- printf("\n\n");
- exit(0);
-}