arch/sparc/boot/btfixupprep.c - kernel/prism - Git at Google

 /*
    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-initalized 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-initalized 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);
 }
	/*
	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-initalized 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-initalized 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->frel2)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);
	}