forked from Minki/linux
sparc32: drop build time btfixup patching
Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sam Ravnborg
David S. Miller
parent
50544bce4c
commit
51f19cfa76
@ -33,11 +33,6 @@ UTS_MACHINE := sparc
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KBUILD_CFLAGS += -m32 -mcpu=v7 -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7
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KBUILD_AFLAGS += -m32 -Wa,-Av8
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#LDFLAGS_vmlinux = -N -Ttext 0xf0004000
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# Since 2.5.40, the first stage is left not btfix-ed.
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# Actual linking is done with "make image".
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LDFLAGS_vmlinux = -r
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else
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#####
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# sparc64
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@ -72,13 +67,6 @@ libs-y += arch/sparc/lib/
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drivers-$(CONFIG_OPROFILE) += arch/sparc/oprofile/
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# Export what is needed by arch/sparc/boot/Makefile
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export VMLINUX_INIT VMLINUX_MAIN
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VMLINUX_INIT := $(head-y) $(init-y)
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VMLINUX_MAIN := $(core-y) kernel/ mm/ fs/ ipc/ security/ crypto/ block/
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VMLINUX_MAIN += $(patsubst %/, %/lib.a, $(libs-y)) $(libs-y)
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VMLINUX_MAIN += $(drivers-y) $(net-y)
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ifdef CONFIG_KALLSYMS
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export kallsyms.o := .tmp_kallsyms2.o
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endif
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@ -6,8 +6,8 @@
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ROOT_IMG := /usr/src/root.img
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ELFTOAOUT := elftoaout
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hostprogs-y := piggyback btfixupprep
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targets := tftpboot.img btfix.o btfix.S image zImage vmlinux.aout
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hostprogs-y := piggyback
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targets := tftpboot.img image zImage vmlinux.aout
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clean-files := System.map
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quiet_cmd_elftoaout = ELFTOAOUT $@
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@ -17,58 +17,9 @@ quiet_cmd_piggy = PIGGY $@
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quiet_cmd_strip = STRIP $@
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cmd_strip = $(STRIP) -R .comment -R .note -K sun4u_init -K _end -K _start $< -o $@
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ifeq ($(CONFIG_SPARC32),y)
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quiet_cmd_btfix = BTFIX $@
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cmd_btfix = $(OBJDUMP) -x vmlinux | $(obj)/btfixupprep > $@
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quiet_cmd_sysmap = SYSMAP $(obj)/System.map
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cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap
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quiet_cmd_image = LD $@
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cmd_image = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LDFLAGS_$(@F)) -o $@
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define rule_image
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$(if $($(quiet)cmd_image), \
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echo ' $($(quiet)cmd_image)' &&) \
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$(cmd_image); \
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$(if $($(quiet)cmd_sysmap), \
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echo ' $($(quiet)cmd_sysmap)' &&) \
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$(cmd_sysmap) $@ $(obj)/System.map; \
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if [ $$? -ne 0 ]; then \
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rm -f $@; \
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/bin/false; \
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fi; \
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echo 'cmd_$@ := $(cmd_image)' > $(@D)/.$(@F).cmd
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endef
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BTOBJS := $(patsubst %/, %/built-in.o, $(VMLINUX_INIT))
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BTLIBS := $(patsubst %/, %/built-in.o, $(VMLINUX_MAIN))
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LDFLAGS_image := -T arch/sparc/kernel/vmlinux.lds $(BTOBJS) \
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--start-group $(BTLIBS) --end-group \
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$(kallsyms.o) $(obj)/btfix.o
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# Link the final image including btfixup'ed symbols.
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# This is a replacement for the link done in the top-level Makefile.
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# Note: No dependency on the prerequisite files since that would require
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# make to try check if they are updated - and due to changes
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# in gcc options (path for example) this would result in
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# these files being recompiled for each build.
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$(obj)/image: $(obj)/btfix.o FORCE
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$(call if_changed_rule,image)
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$(obj)/zImage: $(obj)/image
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$(call if_changed,strip)
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@echo ' kernel: $@ is ready'
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$(obj)/btfix.S: $(obj)/btfixupprep vmlinux FORCE
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$(call if_changed,btfix)
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endif
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ifeq ($(CONFIG_SPARC64),y)
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# Actual linking
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$(obj)/image: vmlinux FORCE
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$(call if_changed,strip)
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@echo ' kernel: $@ is ready'
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$(obj)/zImage: $(obj)/image
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$(call if_changed,gzip)
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@ -79,6 +30,10 @@ $(obj)/vmlinux.aout: vmlinux FORCE
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@echo ' kernel: $@ is ready'
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else
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$(obj)/zImage: $(obj)/image
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$(call if_changed,strip)
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@echo ' kernel: $@ is ready'
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# The following lines make a readable image for U-Boot.
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# uImage - Binary file read by U-boot
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# uImage.o - object file of uImage for loading with a
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@ -107,6 +62,10 @@ $(obj)/uImage: $(obj)/image.gz
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endif
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$(obj)/image: vmlinux FORCE
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$(call if_changed,strip)
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@echo ' kernel: $@ is ready'
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$(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback System.map $(ROOT_IMG) FORCE
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$(call if_changed,elftoaout)
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$(call if_changed,piggy)
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@ -1,386 +0,0 @@
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/*
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Simple utility to prepare vmlinux image for sparc.
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Resolves all BTFIXUP uses and settings and creates
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a special .s object to link to the image.
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Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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#include <errno.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <malloc.h>
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#define MAXSYMS 1024
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static char *symtab = "SYMBOL TABLE:";
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static char *relrec = "RELOCATION RECORDS FOR [";
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static int rellen;
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static int symlen;
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int mode;
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struct _btfixup;
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typedef struct _btfixuprel {
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char *sect;
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unsigned long offset;
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struct _btfixup *f;
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int frel;
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struct _btfixuprel *next;
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} btfixuprel;
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typedef struct _btfixup {
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int type;
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int setinitval;
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unsigned int initval;
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char *initvalstr;
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char *name;
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btfixuprel *rel;
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} btfixup;
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btfixup array[MAXSYMS];
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int last = 0;
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char buffer[1024];
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unsigned long lastfoffset = -1;
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unsigned long lastfrelno;
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btfixup *lastf;
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static void fatal(void) __attribute__((noreturn));
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static void fatal(void)
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{
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fprintf(stderr, "Malformed output from objdump\n%s\n", buffer);
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exit(1);
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}
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static btfixup *find(int type, char *name)
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{
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int i;
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for (i = 0; i < last; i++) {
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if (array[i].type == type && !strcmp(array[i].name, name))
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return array + i;
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}
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array[last].type = type;
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array[last].name = strdup(name);
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array[last].setinitval = 0;
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if (!array[last].name) fatal();
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array[last].rel = NULL;
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last++;
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if (last >= MAXSYMS) {
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fprintf(stderr, "Ugh. Something strange. More than %d different BTFIXUP symbols\n", MAXSYMS);
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exit(1);
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}
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return array + last - 1;
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}
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static void set_mode (char *buffer)
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{
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for (mode = 0;; mode++)
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if (buffer[mode] < '0' || buffer[mode] > '9')
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break;
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if (mode != 8 && mode != 16)
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fatal();
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}
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int main(int argc,char **argv)
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{
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char *p, *q;
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char *sect;
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int i, j, k;
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unsigned int initval;
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int shift;
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btfixup *f;
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btfixuprel *r, **rr;
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unsigned long offset;
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char *initvalstr;
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symlen = strlen(symtab);
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while (fgets (buffer, 1024, stdin) != NULL)
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if (!strncmp (buffer, symtab, symlen))
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goto main0;
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fatal();
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main0:
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rellen = strlen(relrec);
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while (fgets (buffer, 1024, stdin) != NULL)
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if (!strncmp (buffer, relrec, rellen))
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goto main1;
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fatal();
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main1:
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sect = malloc(strlen (buffer + rellen) + 1);
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if (!sect) fatal();
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strcpy (sect, buffer + rellen);
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p = strchr (sect, ']');
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if (!p) fatal();
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*p = 0;
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if (fgets (buffer, 1024, stdin) == NULL)
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fatal();
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while (fgets (buffer, 1024, stdin) != NULL) {
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int nbase;
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if (!strncmp (buffer, relrec, rellen))
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goto main1;
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if (mode == 0)
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set_mode (buffer);
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p = strchr (buffer, '\n');
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if (p) *p = 0;
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if (strlen (buffer) < 22+mode)
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continue;
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if (strncmp (buffer + mode, " R_SPARC_", 9))
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continue;
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nbase = 27 - 8 + mode;
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if (buffer[nbase] != '_' || buffer[nbase+1] != '_' || buffer[nbase+2] != '_')
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continue;
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switch (buffer[nbase+3]) {
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case 'f': /* CALL */
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case 'b': /* BLACKBOX */
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case 's': /* SIMM13 */
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case 'a': /* HALF */
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case 'h': /* SETHI */
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case 'i': /* INT */
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break;
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default:
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continue;
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}
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p = strchr (buffer + nbase+5, '+');
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if (p) *p = 0;
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shift = nbase + 5;
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if (buffer[nbase+4] == 's' && buffer[nbase+5] == '_') {
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shift = nbase + 6;
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if (strcmp (sect, ".init.text")) {
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fprintf(stderr,
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"Wrong use of '%s' BTFIXUPSET in '%s' section.\n"
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"BTFIXUPSET_CALL can be used only in"
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" __init sections\n",
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buffer + shift, sect);
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exit(1);
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}
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} else if (buffer[nbase+4] != '_')
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continue;
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if (!strcmp (sect, ".text.exit"))
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continue;
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if (strcmp (sect, ".text") &&
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strcmp (sect, ".init.text") &&
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strcmp (sect, ".fixup") &&
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(strcmp (sect, "__ksymtab") || buffer[nbase+3] != 'f')) {
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if (buffer[nbase+3] == 'f')
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fprintf(stderr,
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"Wrong use of '%s' in '%s' section.\n"
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" It can be used only in .text, .init.text,"
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" .fixup and __ksymtab\n",
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buffer + shift, sect);
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else
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fprintf(stderr,
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"Wrong use of '%s' in '%s' section.\n"
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" It can be only used in .text, .init.text,"
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" and .fixup\n", buffer + shift, sect);
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exit(1);
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}
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p = strstr (buffer + shift, "__btset_");
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if (p && buffer[nbase+4] == 's') {
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fprintf(stderr, "__btset_ in BTFIXUP name can only be used when defining the variable, not for setting\n%s\n", buffer);
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exit(1);
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}
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initval = 0;
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initvalstr = NULL;
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if (p) {
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if (p[8] != '0' || p[9] != 'x') {
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fprintf(stderr, "Pre-initialized values can be only initialized with hexadecimal constants starting 0x\n%s\n", buffer);
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exit(1);
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}
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initval = strtoul(p + 10, &q, 16);
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if (*q || !initval) {
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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);
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exit(1);
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}
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initvalstr = p + 10;
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*p = 0;
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}
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f = find(buffer[nbase+3], buffer + shift);
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if (buffer[nbase+4] == 's')
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continue;
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switch (buffer[nbase+3]) {
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case 'f':
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if (initval) {
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fprintf(stderr, "Cannot use pre-initialized fixups for calls\n%s\n", buffer);
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exit(1);
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}
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if (!strcmp (sect, "__ksymtab")) {
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if (strncmp (buffer + mode+9, "32 ", 10)) {
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fprintf(stderr, "BTFIXUP_CALL in EXPORT_SYMBOL results in relocation other than R_SPARC_32\n\%s\n", buffer);
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exit(1);
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}
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} else if (strncmp (buffer + mode+9, "WDISP30 ", 10) &&
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strncmp (buffer + mode+9, "HI22 ", 10) &&
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strncmp (buffer + mode+9, "LO10 ", 10)) {
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fprintf(stderr, "BTFIXUP_CALL results in relocation other than R_SPARC_WDISP30, R_SPARC_HI22 or R_SPARC_LO10\n%s\n", buffer);
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exit(1);
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}
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break;
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case 'b':
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if (initval) {
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fprintf(stderr, "Cannot use pre-initialized fixups for blackboxes\n%s\n", buffer);
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exit(1);
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}
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if (strncmp (buffer + mode+9, "HI22 ", 10)) {
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fprintf(stderr, "BTFIXUP_BLACKBOX results in relocation other than R_SPARC_HI22\n%s\n", buffer);
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exit(1);
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}
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break;
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case 's':
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if (initval + 0x1000 >= 0x2000) {
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fprintf(stderr, "Wrong initializer for SIMM13. Has to be from $fffff000 to $00000fff\n%s\n", buffer);
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exit(1);
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}
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if (strncmp (buffer + mode+9, "13 ", 10)) {
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fprintf(stderr, "BTFIXUP_SIMM13 results in relocation other than R_SPARC_13\n%s\n", buffer);
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exit(1);
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}
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break;
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case 'a':
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if (initval + 0x1000 >= 0x2000 && (initval & 0x3ff)) {
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fprintf(stderr, "Wrong initializer for HALF.\n%s\n", buffer);
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exit(1);
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}
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if (strncmp (buffer + mode+9, "13 ", 10)) {
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fprintf(stderr, "BTFIXUP_HALF results in relocation other than R_SPARC_13\n%s\n", buffer);
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exit(1);
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}
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break;
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case 'h':
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if (initval & 0x3ff) {
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fprintf(stderr, "Wrong initializer for SETHI. Cannot have set low 10 bits\n%s\n", buffer);
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exit(1);
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}
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if (strncmp (buffer + mode+9, "HI22 ", 10)) {
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fprintf(stderr, "BTFIXUP_SETHI results in relocation other than R_SPARC_HI22\n%s\n", buffer);
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exit(1);
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}
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break;
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case 'i':
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if (initval) {
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fprintf(stderr, "Cannot use pre-initialized fixups for INT\n%s\n", buffer);
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exit(1);
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}
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if (strncmp (buffer + mode+9, "HI22 ", 10) && strncmp (buffer + mode+9, "LO10 ", 10)) {
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fprintf(stderr, "BTFIXUP_INT results in relocation other than R_SPARC_HI22 and R_SPARC_LO10\n%s\n", buffer);
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exit(1);
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}
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break;
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}
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if (!f->setinitval) {
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f->initval = initval;
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if (initvalstr) {
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f->initvalstr = strdup(initvalstr);
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if (!f->initvalstr) fatal();
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}
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f->setinitval = 1;
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} else if (f->initval != initval) {
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fprintf(stderr, "Btfixup %s previously used with initializer %s which doesn't match with current initializer\n%s\n",
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f->name, f->initvalstr ? : "0x00000000", buffer);
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exit(1);
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} else if (initval && strcmp(f->initvalstr, initvalstr)) {
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fprintf(stderr, "Btfixup %s previously used with initializer %s which doesn't match with current initializer.\n"
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"Initializers have to match literally as well.\n%s\n",
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f->name, f->initvalstr, buffer);
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exit(1);
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}
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offset = strtoul(buffer, &q, 16);
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if (q != buffer + mode || (!offset && (mode == 8 ? strncmp (buffer, "00000000 ", 9) : strncmp (buffer, "0000000000000000 ", 17)))) {
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fprintf(stderr, "Malformed relocation address in\n%s\n", buffer);
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exit(1);
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}
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for (k = 0, r = f->rel, rr = &f->rel; r; rr = &r->next, r = r->next, k++)
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if (r->offset == offset && !strcmp(r->sect, sect)) {
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fprintf(stderr, "Ugh. One address has two relocation records\n");
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exit(1);
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}
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*rr = malloc(sizeof(btfixuprel));
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if (!*rr) fatal();
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(*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);
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user