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-rw-r--r--arch/sparc/boot/Makefile109
-rw-r--r--arch/sparc/boot/btfixupprep.c386
-rw-r--r--arch/sparc/boot/piggyback.c272
-rw-r--r--arch/sparc/boot/piggyback_32.c137
-rw-r--r--arch/sparc/boot/piggyback_64.c110
5 files changed, 315 insertions, 699 deletions
diff --git a/arch/sparc/boot/Makefile b/arch/sparc/boot/Makefile
index 97e3feb9ff1..6e63afb128d 100644
--- a/arch/sparc/boot/Makefile
+++ b/arch/sparc/boot/Makefile
@@ -6,89 +6,66 @@
ROOT_IMG := /usr/src/root.img
ELFTOAOUT := elftoaout
-hostprogs-y := piggyback_32 piggyback_64 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 $@
cmd_elftoaout = $(ELFTOAOUT) $(obj)/image -o $@
-
-ifeq ($(CONFIG_SPARC32),y)
quiet_cmd_piggy = PIGGY $@
- cmd_piggy = $(obj)/piggyback_32 $@ System.map $(ROOT_IMG)
-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 $@
-quiet_cmd_strip = STRIP $@
- cmd_strip = $(STRIP) -R .comment -R .note -K sun4u_init -K _end -K _start $(obj)/image -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)
+ cmd_piggy = $(obj)/piggyback $(BITS) $@ System.map $(ROOT_IMG)
+quiet_cmd_strip = STRIP $@
+ cmd_strip = $(STRIP) -R .comment -R .note -K sun4u_init -K _end -K _start $< -o $@
+
+ifeq ($(CONFIG_SPARC64),y)
+
+# Actual linking
$(obj)/zImage: $(obj)/image
- $(call if_changed,strip)
+ $(call if_changed,gzip)
+ @echo ' kernel: $@ is ready'
-$(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback_32 System.map $(ROOT_IMG) FORCE
+$(obj)/vmlinux.aout: vmlinux FORCE
$(call if_changed,elftoaout)
- $(call if_changed,piggy)
+ @echo ' kernel: $@ is ready'
+else
-$(obj)/btfix.S: $(obj)/btfixupprep vmlinux FORCE
- $(call if_changed,btfix)
+$(obj)/zImage: $(obj)/image
+ $(call if_changed,strip)
+ @echo ' kernel: $@ is ready'
-endif
+# The following lines make a readable image for U-Boot.
+# uImage - Binary file read by U-boot
+# uImage.o - object file of uImage for loading with a
+# flash programmer understanding ELF.
-ifeq ($(CONFIG_SPARC64),y)
-quiet_cmd_piggy = PIGGY $@
- cmd_piggy = $(obj)/piggyback_64 $@ System.map $(ROOT_IMG)
-quiet_cmd_strip = STRIP $@
- cmd_strip = $(STRIP) -R .comment -R .note -K sun4u_init -K _end -K _start vmlinux -o $@
+OBJCOPYFLAGS_image.bin := -S -O binary -R .note -R .comment
+$(obj)/image.bin: $(obj)/image FORCE
+ $(call if_changed,objcopy)
+$(obj)/image.gz: $(obj)/image.bin
+ $(call if_changed,gzip)
+
+UIMAGE_LOADADDR = $(CONFIG_UBOOT_LOAD_ADDR)
+UIMAGE_ENTRYADDR = $(CONFIG_UBOOT_ENTRY_ADDR)
+UIMAGE_COMPRESSION = gzip
+
+quiet_cmd_uimage.o = UIMAGE.O $@
+ cmd_uimage.o = $(LD) -Tdata $(CONFIG_UBOOT_FLASH_ADDR) \
+ -r -b binary $@ -o $@.o
+
+targets += uImage
+$(obj)/uImage: $(obj)/image.gz
+ $(call if_changed,uimage)
+ $(call if_changed,uimage.o)
+ @echo ' Image $@ is ready'
+
+endif
-# Actual linking
$(obj)/image: vmlinux FORCE
$(call if_changed,strip)
@echo ' kernel: $@ is ready'
-$(obj)/zImage: $(obj)/image
- $(call if_changed,gzip)
-
-$(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback_64 System.map $(ROOT_IMG) FORCE
+$(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback System.map $(ROOT_IMG) FORCE
$(call if_changed,elftoaout)
$(call if_changed,piggy)
- @echo ' kernel: $@ is ready'
-
-$(obj)/vmlinux.aout: vmlinux FORCE
- $(call if_changed,elftoaout)
- @echo ' kernel: $@ is ready'
-endif
-
diff --git a/arch/sparc/boot/btfixupprep.c b/arch/sparc/boot/btfixupprep.c
deleted file mode 100644
index da031159e2b..00000000000
--- 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);
-}
diff --git a/arch/sparc/boot/piggyback.c b/arch/sparc/boot/piggyback.c
new file mode 100644
index 00000000000..bb7c95161d7
--- /dev/null
+++ b/arch/sparc/boot/piggyback.c
@@ -0,0 +1,272 @@
+/*
+ Simple utility to make a single-image install kernel with initial ramdisk
+ for Sparc tftpbooting without need to set up nfs.
+
+ Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ Pete Zaitcev <zaitcev@yahoo.com> endian fixes for cross-compiles, 2000.
+ Copyright (C) 2011 Sam Ravnborg <sam@ravnborg.org>
+
+ 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 <dirent.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+/*
+ * Note: run this on an a.out kernel (use elftoaout for it),
+ * as PROM looks for a.out image only.
+ */
+
+#define AOUT_TEXT_OFFSET 32
+
+static int is64bit = 0;
+
+/* align to power-of-two size */
+static int align(int n)
+{
+ if (is64bit)
+ return (n + 0x1fff) & ~0x1fff;
+ else
+ return (n + 0xfff) & ~0xfff;
+}
+
+/* read two bytes as big endian */
+static unsigned short ld2(char *p)
+{
+ return (p[0] << 8) | p[1];
+}
+
+/* save 4 bytes as big endian */
+static void st4(char *p, unsigned int x)
+{
+ p[0] = x >> 24;
+ p[1] = x >> 16;
+ p[2] = x >> 8;
+ p[3] = x;
+}
+
+static void die(const char *str)
+{
+ perror(str);
+ exit(1);
+}
+
+static void usage(void)
+{
+ /* fs_img.gz is an image of initial ramdisk. */
+ fprintf(stderr, "Usage: piggyback bits vmlinux.aout System.map fs_img.gz\n");
+ fprintf(stderr, "\tKernel image will be modified in place.\n");
+ exit(1);
+}
+
+static int start_line(const char *line)
+{
+ if (strcmp(line + 10, " _start\n") == 0)
+ return 1;
+ else if (strcmp(line + 18, " _start\n") == 0)
+ return 1;
+ return 0;
+}
+
+static int end_line(const char *line)
+{
+ if (strcmp(line + 10, " _end\n") == 0)
+ return 1;
+ else if (strcmp (line + 18, " _end\n") == 0)
+ return 1;
+ return 0;
+}
+
+/*
+ * Find address for start and end in System.map.
+ * The file looks like this:
+ * f0004000 ... _start
+ * f0379f79 ... _end
+ * 1234567890123456
+ * ^coloumn 1
+ * There is support for 64 bit addresses too.
+ *
+ * Return 0 if either start or end is not found
+ */
+static int get_start_end(const char *filename, unsigned int *start,
+ unsigned int *end)
+{
+ FILE *map;
+ char buffer[1024];
+
+ *start = 0;
+ *end = 0;
+ map = fopen(filename, "r");
+ if (!map)
+ die(filename);
+ while (fgets(buffer, 1024, map)) {
+ if (start_line(buffer))
+ *start = strtoul(buffer, NULL, 16);
+ else if (end_line(buffer))
+ *end = strtoul(buffer, NULL, 16);
+ }
+ fclose (map);
+
+ if (*start == 0 || *end == 0)
+ return 0;
+
+ return 1;
+}
+
+#define LOOKBACK (128 * 4)
+#define BUFSIZE 1024
+/*
+ * Find the HdrS entry from head_32/head_64.
+ * We check if it is at the beginning of the file (sparc64 case)
+ * and if not we search for it.
+ * When we search do so in steps of 4 as HdrS is on a 4-byte aligned
+ * address (it is on same alignment as sparc instructions)
+ * Return the offset to the HdrS entry (as off_t)
+ */
+static off_t get_hdrs_offset(int kernelfd, const char *filename)
+{
+ char buffer[BUFSIZE];
+ off_t offset;
+ int i;
+
+ if (lseek(kernelfd, 0, SEEK_SET) < 0)
+ die("lseek");
+ if (read(kernelfd, buffer, BUFSIZE) != BUFSIZE)
+ die(filename);
+
+ if (buffer[40] == 'H' && buffer[41] == 'd' &&
+ buffer[42] == 'r' && buffer[43] == 'S') {
+ return 40;
+ } else {
+ /* Find the gokernel label */
+ /* Decode offset from branch instruction */
+ offset = ld2(buffer + AOUT_TEXT_OFFSET + 2) << 2;
+ /* Go back 512 bytes so we do not miss HdrS */
+ offset -= LOOKBACK;
+ /* skip a.out header */
+ offset += AOUT_TEXT_OFFSET;
+ if (lseek(kernelfd, offset, SEEK_SET) < 0)
+ die("lseek");
+ if (read(kernelfd, buffer, BUFSIZE) != BUFSIZE)
+ die(filename);
+
+ for (i = 0; i < LOOKBACK; i += 4) {
+ if (buffer[i + 0] == 'H' && buffer[i + 1] == 'd' &&
+ buffer[i + 2] == 'r' && buffer[i + 3] == 'S') {
+ return offset + i;
+ }
+ }
+ }
+ fprintf (stderr, "Couldn't find headers signature in %s\n", filename);
+ exit(1);
+}
+
+int main(int argc,char **argv)
+{
+ static char aout_magic[] = { 0x01, 0x03, 0x01, 0x07 };
+ char buffer[1024];
+ unsigned int i, start, end;
+ off_t offset;
+ struct stat s;
+ int image, tail;
+
+ if (argc != 5)
+ usage();
+ if (strcmp(argv[1], "64") == 0)
+ is64bit = 1;
+ if (stat (argv[4], &s) < 0)
+ die(argv[4]);
+
+ if (!get_start_end(argv[3], &start, &end)) {
+ fprintf(stderr, "Could not determine start and end from %s\n",
+ argv[3]);
+ exit(1);
+ }
+ if ((image = open(argv[2], O_RDWR)) < 0)
+ die(argv[2]);
+ if (read(image, buffer, 512) != 512)
+ die(argv[2]);
+ if (memcmp(buffer, aout_magic, 4) != 0) {
+ fprintf (stderr, "Not a.out. Don't blame me.\n");
+ exit(1);
+ }
+ /*
+ * We need to fill in values for
+ * sparc_ramdisk_image + sparc_ramdisk_size
+ * To locate these symbols search for the "HdrS" text which appear
+ * in the image a little before the gokernel symbol.
+ * See definition of these in init_32.S
+ */
+
+ offset = get_hdrs_offset(image, argv[2]);
+ /* skip HdrS + LINUX_VERSION_CODE + HdrS version */
+ offset += 10;
+
+ if (lseek(image, offset, 0) < 0)
+ die("lseek");
+
+ /*
+ * root_flags = 0
+ * root_dev = 1 (RAMDISK_MAJOR)
+ * ram_flags = 0
+ * sparc_ramdisk_image = "PAGE aligned address after _end")
+ * sparc_ramdisk_size = size of image
+ */
+ st4(buffer, 0);
+ st4(buffer + 4, 0x01000000);
+ st4(buffer + 8, align(end + 32));
+ st4(buffer + 12, s.st_size);
+
+ if (write(image, buffer + 2, 14) != 14)
+ die(argv[2]);
+
+ /* For sparc64 update a_text and clear a_data + a_bss */
+ if (is64bit)
+ {
+ if (lseek(image, 4, 0) < 0)
+ die("lseek");
+ /* a_text */
+ st4(buffer, align(end + 32 + 8191) - (start & ~0x3fffffUL) +
+ s.st_size);
+ /* a_data */
+ st4(buffer + 4, 0);
+ /* a_bss */
+ st4(buffer + 8, 0);
+ if (write(image, buffer, 12) != 12)
+ die(argv[2]);
+ }
+
+ /* seek page aligned boundary in the image file and add boot image */
+ if (lseek(image, AOUT_TEXT_OFFSET - start + align(end + 32), 0) < 0)
+ die("lseek");
+ if ((tail = open(argv[4], O_RDONLY)) < 0)
+ die(argv[4]);
+ while ((i = read(tail, buffer, 1024)) > 0)
+ if (write(image, buffer, i) != i)
+ die(argv[2]);
+ if (close(image) < 0)
+ die("close");
+ if (close(tail) < 0)
+ die("close");
+ return 0;
+}
diff --git a/arch/sparc/boot/piggyback_32.c b/arch/sparc/boot/piggyback_32.c
deleted file mode 100644
index ac944aec730..00000000000
--- a/arch/sparc/boot/piggyback_32.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- Simple utility to make a single-image install kernel with initial ramdisk
- for Sparc tftpbooting without need to set up nfs.
-
- Copyright (C) 1996 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- Pete Zaitcev <zaitcev@yahoo.com> endian fixes for cross-compiles, 2000.
-
- 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 <fcntl.h>
-#include <dirent.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-
-/*
- * Note: run this on an a.out kernel (use elftoaout for it),
- * as PROM looks for a.out image only.
- */
-
-static unsigned short ld2(char *p)
-{
- return (p[0] << 8) | p[1];
-}
-
-static unsigned int ld4(char *p)
-{
- return (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
-}
-
-static void st4(char *p, unsigned int x)
-{
- p[0] = x >> 24;
- p[1] = x >> 16;
- p[2] = x >> 8;
- p[3] = x;
-}
-
-static void usage(void)
-{
- /* fs_img.gz is an image of initial ramdisk. */
- fprintf(stderr, "Usage: piggyback vmlinux.aout System.map fs_img.gz\n");
- fprintf(stderr, "\tKernel image will be modified in place.\n");
- exit(1);
-}
-
-static void die(char *str)
-{
- perror (str);
- exit(1);
-}
-
-int main(int argc,char **argv)
-{
- static char aout_magic[] = { 0x01, 0x03, 0x01, 0x07 };
- char buffer[1024], *q, *r;
- unsigned int i, j, k, start, end, offset;
- FILE *map;
- struct stat s;
- int image, tail;
-
- if (argc != 4) usage();
- start = end = 0;
- if (stat (argv[3], &s) < 0) die (argv[3]);
- map = fopen (argv[2], "r");
- if (!map) die(argv[2]);
- while (fgets (buffer, 1024, map)) {
- if (!strcmp (buffer + 8, " T start\n") || !strcmp (buffer + 16, " T start\n"))
- start = strtoul (buffer, NULL, 16);
- else if (!strcmp (buffer + 8, " A _end\n") || !strcmp (buffer + 16, " A _end\n"))
- end = strtoul (buffer, NULL, 16);
- }
- fclose (map);
- if (!start || !end) {
- fprintf (stderr, "Could not determine start and end from System.map\n");
- exit(1);
- }
- if ((image = open(argv[1],O_RDWR)) < 0) die(argv[1]);
- if (read(image,buffer,512) != 512) die(argv[1]);
- if (memcmp (buffer, "\177ELF", 4) == 0) {
- q = buffer + ld4(buffer + 28);
- i = ld4(q + 4) + ld4(buffer + 24) - ld4(q + 8);
- if (lseek(image,i,0) < 0) die("lseek");
- if (read(image,buffer,512) != 512) die(argv[1]);
- j = 0;
- } else if (memcmp(buffer, aout_magic, 4) == 0) {
- i = j = 32;
- } else {
- fprintf (stderr, "Not ELF nor a.out. Don't blame me.\n");
- exit(1);
- }
- k = i;
- i += (ld2(buffer + j + 2)<<2) - 512;
- if (lseek(image,i,0) < 0) die("lseek");
- if (read(image,buffer,1024) != 1024) die(argv[1]);
- for (q = buffer, r = q + 512; q < r; q += 4) {
- if (*q == 'H' && q[1] == 'd' && q[2] == 'r' && q[3] == 'S')
- break;
- }
- if (q == r) {
- fprintf (stderr, "Couldn't find headers signature in the kernel.\n");
- exit(1);
- }
- offset = i + (q - buffer) + 10;
- if (lseek(image, offset, 0) < 0) die ("lseek");
-
- st4(buffer, 0);
- st4(buffer + 4, 0x01000000);
- st4(buffer + 8, (end + 32 + 4095) & ~4095);
- st4(buffer + 12, s.st_size);
-
- if (write(image,buffer+2,14) != 14) die (argv[1]);
- if (lseek(image, k - start + ((end + 32 + 4095) & ~4095), 0) < 0) die ("lseek");
- if ((tail = open(argv[3],O_RDONLY)) < 0) die(argv[3]);
- while ((i = read (tail,buffer,1024)) > 0)
- if (write(image,buffer,i) != i) die (argv[1]);
- if (close(image) < 0) die("close");
- if (close(tail) < 0) die("close");
- return 0;
-}
diff --git a/arch/sparc/boot/piggyback_64.c b/arch/sparc/boot/piggyback_64.c
deleted file mode 100644
index a26a686cb5a..00000000000
--- a/arch/sparc/boot/piggyback_64.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- Simple utility to make a single-image install kernel with initial ramdisk
- for Sparc64 tftpbooting without need to set up nfs.
-
- Copyright (C) 1997 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 <fcntl.h>
-#include <dirent.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-
-/* Note: run this on an a.out kernel (use elftoaout for it), as PROM looks for a.out image onlly
- usage: piggyback vmlinux System.map tail, where tail is gzipped fs of the initial ramdisk */
-
-static void die(char *str)
-{
- perror (str);
- exit(1);
-}
-
-int main(int argc,char **argv)
-{
- char buffer [1024], *q, *r;
- unsigned int i, j, k, start, end, offset;
- FILE *map;
- struct stat s;
- int image, tail;
-
- start = end = 0;
- if (stat (argv[3], &s) < 0) die (argv[3]);
- map = fopen (argv[2], "r");
- if (!map) die(argv[2]);
- while (fgets (buffer, 1024, map)) {
- if (!strcmp (buffer + 19, "_start\n"))
- start = strtoul (buffer + 8, NULL, 16);
- else if (!strcmp (buffer + 19, "_end\n"))
- end = strtoul (buffer + 8, NULL, 16);
- }
- fclose (map);
- if ((image = open(argv[1],O_RDWR)) < 0) die(argv[1]);
- if (read(image,buffer,512) != 512) die(argv[1]);
- if (!memcmp (buffer, "\177ELF", 4)) {
- unsigned int *p = (unsigned int *)(buffer + *(unsigned int *)(buffer + 28));
-
- i = p[1] + *(unsigned int *)(buffer + 24) - p[2];
- if (lseek(image,i,0) < 0) die("lseek");
- if (read(image,buffer,512) != 512) die(argv[1]);
- j = 0;
- } else if (*(unsigned int *)buffer == 0x01030107) {
- i = j = 32;
- } else {
- fprintf (stderr, "Not ELF nor a.out. Don't blame me.\n");
- exit(1);
- }
- k = i;
- if (j == 32 && buffer[40] == 'H' && buffer[41] == 'd' && buffer[42] == 'r' && buffer[43] == 'S') {
- offset = 40 + 10;
- } else {
- i += ((*(unsigned short *)(buffer + j + 2))<<2) - 512;
- if (lseek(image,i,0) < 0) die("lseek");
- if (read(image,buffer,1024) != 1024) die(argv[1]);
- for (q = buffer, r = q + 512; q < r; q += 4) {
- if (*q == 'H' && q[1] == 'd' && q[2] == 'r' && q[3] == 'S')
- break;
- }
- if (q == r) {
- fprintf (stderr, "Couldn't find headers signature in the kernel.\n");
- exit(1);
- }
- offset = i + (q - buffer) + 10;
- }
- if (lseek(image, offset, 0) < 0) die ("lseek");
- *(unsigned *)buffer = 0;
- *(unsigned *)(buffer + 4) = 0x01000000;
- *(unsigned *)(buffer + 8) = ((end + 32 + 8191) & ~8191);
- *(unsigned *)(buffer + 12) = s.st_size;
- if (write(image,buffer+2,14) != 14) die (argv[1]);
- if (lseek(image, 4, 0) < 0) die ("lseek");
- *(unsigned *)buffer = ((end + 32 + 8191) & ~8191) - (start & ~0x3fffffUL) + s.st_size;
- *(unsigned *)(buffer + 4) = 0;
- *(unsigned *)(buffer + 8) = 0;
- if (write(image,buffer,12) != 12) die (argv[1]);
- if (lseek(image, k - start + ((end + 32 + 8191) & ~8191), 0) < 0) die ("lseek");
- if ((tail = open(argv[3],O_RDONLY)) < 0) die(argv[3]);
- while ((i = read (tail,buffer,1024)) > 0)
- if (write(image,buffer,i) != i) die (argv[1]);
- if (close(image) < 0) die("close");
- if (close(tail) < 0) die("close");
- return 0;
-}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 08:17:05 +0000