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authorrgrimes <rgrimes@FreeBSD.org>1993-06-12 14:49:13 +0000
committerrgrimes <rgrimes@FreeBSD.org>1993-06-12 14:49:13 +0000
commitf078b88a160c467761b3f3641f05dfd0aa3f7753 (patch)
tree1f058a53dd274694716ec00c288d27223606ee45 /usr.bin/symorder
downloadFreeBSD-src-f078b88a160c467761b3f3641f05dfd0aa3f7753.zip
FreeBSD-src-f078b88a160c467761b3f3641f05dfd0aa3f7753.tar.gz
Initial import, 0.1 + pk 0.2.4-B1
Diffstat (limited to 'usr.bin/symorder')
-rw-r--r--usr.bin/symorder/Makefile5
-rw-r--r--usr.bin/symorder/symorder.181
-rw-r--r--usr.bin/symorder/symorder.c281
3 files changed, 367 insertions, 0 deletions
diff --git a/usr.bin/symorder/Makefile b/usr.bin/symorder/Makefile
new file mode 100644
index 0000000..5fe1caf
--- /dev/null
+++ b/usr.bin/symorder/Makefile
@@ -0,0 +1,5 @@
+# @(#)Makefile 5.3 (Berkeley) 5/11/90
+
+PROG= symorder
+
+.include <bsd.prog.mk>
diff --git a/usr.bin/symorder/symorder.1 b/usr.bin/symorder/symorder.1
new file mode 100644
index 0000000..f113bca
--- /dev/null
+++ b/usr.bin/symorder/symorder.1
@@ -0,0 +1,81 @@
+.\" Copyright (c) 1980, 1990 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\" must display the following acknowledgement:
+.\" This product includes software developed by the University of
+.\" California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\" may be used to endorse or promote products derived from this software
+.\" without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" @(#)symorder.1 6.5 (Berkeley) 4/22/91
+.\"
+.Dd April 22, 1991
+.Dt SYMORDER 1
+.Os BSD 3
+.Sh NAME
+.Nm symorder
+.Nd rearrange name list
+.Sh SYNOPSIS
+.Nm symorder
+.Fl t Ar symlist file
+.Sh DESCRIPTION
+The file
+.Ar symlist
+contains a list of symbols to be found in
+.Ar file,
+one symbol per line.
+.Pp
+The symbol table of
+.Ar file
+is updated in place;
+symbols read from
+.Ar symlist
+are relocated to the beginning of the table and in the order given.
+.Bl -tag -width flag
+.It Fl t
+Restrict the symbol table to the symbols listed in
+.Ar symlist .
+.El
+.Pp
+This program was specifically designed to cut down on the
+overhead of getting symbols from
+.Pa /vmunix.
+.Sh DIAGNOSTICS
+The
+.Nm symorder
+utility exits 0 on success, 1 if a symbol
+listed in the
+.Ar symlist
+file was not found in the symbol
+table, and >1 if an error occurs.
+.Sh SEE ALSO
+.Xr nm 3 ,
+.Xr nlist 3 ,
+.Xr strip 3
+.Sh HISTORY
+The
+.Nm
+command appeared in
+.Bx 3.0 .
diff --git a/usr.bin/symorder/symorder.c b/usr.bin/symorder/symorder.c
new file mode 100644
index 0000000..4c41a14
--- /dev/null
+++ b/usr.bin/symorder/symorder.c
@@ -0,0 +1,281 @@
+/*
+ * Copyright (c) 1980 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+char copyright[] =
+"@(#) Copyright (c) 1980 The Regents of the University of California.\n\
+ All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)symorder.c 5.8 (Berkeley) 4/1/91";
+#endif /* not lint */
+
+/*
+ * symorder - reorder symbol table
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <a.out.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define SPACE 500
+
+#define OKEXIT 0
+#define NOTFOUNDEXIT 1
+#define ERREXIT 2
+
+struct nlist order[SPACE];
+
+struct exec exec;
+struct stat stb;
+struct nlist *newtab, *symtab;
+off_t sa;
+int nsym, strtabsize, symfound, small;
+char *kfile, *newstrings, *strings, asym[BUFSIZ];
+
+main(argc, argv)
+ int argc;
+ char **argv;
+{
+ extern char *optarg;
+ extern int optind;
+ register struct nlist *p, *symp;
+ register FILE *f;
+ register int i;
+ register char *start, *t;
+ int ch, n, o;
+
+ while ((ch = getopt(argc, argv, "t")) != EOF)
+ switch(ch) {
+ case 't':
+ small = 1;
+ break;
+ case '?':
+ default:
+ usage();
+ }
+ argc -= optind;
+ argv += optind;
+
+ if (argc != 2)
+ usage();
+
+ if ((f = fopen(argv[0], "r")) == NULL)
+ error(argv[0]);
+
+ for (p = order; fgets(asym, sizeof(asym), f) != NULL;) {
+ for (t = asym; isspace(*t); ++t);
+ if (!*(start = t))
+ continue;
+ while (*++t);
+ if (*--t == '\n')
+ *t = '\0';
+ p->n_un.n_name = strdup(start);
+ ++p;
+ ++nsym;
+ }
+ (void)fclose(f);
+
+ kfile = argv[1];
+ if ((f = fopen(kfile, "r")) == NULL)
+ error(kfile);
+ if ((o = open(kfile, O_WRONLY)) < 0)
+ error(kfile);
+
+ /* read exec header */
+ if ((fread(&exec, sizeof(exec), 1, f)) != 1)
+ badfmt("no exec header");
+ if (N_BADMAG(exec))
+ badfmt("bad magic number");
+ if (exec.a_syms == 0)
+ badfmt("stripped");
+ (void)fstat(fileno(f), &stb);
+ if (stb.st_size < N_STROFF(exec) + sizeof(off_t))
+ badfmt("no string table");
+
+ /* seek to and read the symbol table */
+ sa = N_SYMOFF(exec);
+ (void)fseek(f, sa, SEEK_SET);
+ n = exec.a_syms;
+ if (!(symtab = (struct nlist *)malloc(n)))
+ error(NULL);
+ if (fread((void *)symtab, 1, n, f) != n)
+ badfmt("corrupted symbol table");
+
+ /* read string table size and string table */
+ if (fread((void *)&strtabsize, sizeof(int), 1, f) != 1 ||
+ strtabsize <= 0)
+ badfmt("corrupted string table");
+ strings = malloc(strtabsize);
+ if (strings == NULL)
+ error(NULL);
+ /*
+ * Subtract four from strtabsize since strtabsize includes itself,
+ * and we've already read it.
+ */
+ if (fread(strings, 1, strtabsize - sizeof(int), f) !=
+ strtabsize - sizeof(int))
+ badfmt("corrupted string table");
+
+ newtab = (struct nlist *)malloc(n);
+ if (newtab == (struct nlist *)NULL)
+ error(NULL);
+
+ i = n / sizeof(struct nlist);
+ reorder(symtab, newtab, i);
+ free((void *)symtab);
+ symtab = newtab;
+
+ newstrings = malloc(strtabsize);
+ if (newstrings == NULL)
+ error(NULL);
+ t = newstrings;
+ for (symp = symtab; --i >= 0; symp++) {
+ if (symp->n_un.n_strx == 0)
+ continue;
+ if (small && inlist(symp) < 0) continue;
+ symp->n_un.n_strx -= sizeof(int);
+ (void)strcpy(t, &strings[symp->n_un.n_strx]);
+ symp->n_un.n_strx = (t - newstrings) + sizeof(int);
+ t += strlen(t) + 1;
+ }
+
+ /* update shrunk sizes */
+ if(small) {
+ strtabsize = t - newstrings + sizeof(int);
+ n = symfound * sizeof(struct nlist);
+ /* fix exec sym size */
+ (void)lseek(o, 0, SEEK_SET);
+ exec.a_syms = n;
+ if (write(o, (void *)&exec, sizeof(exec)) != sizeof(exec))
+ error(kfile);
+ }
+
+ (void)lseek(o, sa, SEEK_SET);
+ if (write(o, (void *)symtab, n) != n)
+ error(kfile);
+ if (write(o, (void *)&strtabsize, sizeof(int)) != sizeof(int))
+ error(kfile);
+ if (write(o, newstrings, strtabsize - sizeof(int)) !=
+ strtabsize - sizeof(int))
+ error(kfile);
+
+ if (small) ftruncate(o, lseek(o, 0, SEEK_CUR));
+
+ if ((i = nsym - symfound) > 0) {
+ (void)printf("symorder: %d symbol%s not found:\n",
+ i, i == 1 ? "" : "s");
+ for (i = 0; i < nsym; i++)
+ if (order[i].n_value == 0)
+ printf("%s\n", order[i].n_un.n_name);
+ exit(NOTFOUNDEXIT);
+ }
+ exit(OKEXIT);
+}
+
+reorder(st1, st2, entries)
+ register struct nlist *st1, *st2;
+ int entries;
+{
+ register struct nlist *p;
+ register int i, n;
+
+ for (p = st1, n = entries; --n >= 0; ++p)
+ if (inlist(p) != -1)
+ ++symfound;
+ for (p = st2 + symfound, n = entries; --n >= 0; ++st1) {
+ i = inlist(st1);
+ if (i == -1)
+ *p++ = *st1;
+ else
+ st2[i] = *st1;
+ }
+}
+
+inlist(p)
+ register struct nlist *p;
+{
+ register char *nam;
+ register struct nlist *op;
+
+ if (p->n_type & N_STAB)
+ return (-1);
+ if (p->n_un.n_strx == 0)
+ return (-1);
+
+ if (p->n_un.n_strx >= strtabsize)
+ badfmt("corrupted symbol table");
+
+ nam = &strings[p->n_un.n_strx - sizeof(int)];
+ for (op = &order[nsym]; --op >= order; ) {
+ if (strcmp(op->n_un.n_name, nam) != 0)
+ continue;
+ op->n_value = 1;
+ return (op - order);
+ }
+ return (-1);
+}
+
+badfmt(why)
+ char *why;
+{
+ (void)fprintf(stderr,
+ "symorder: %s: %s: %s\n", kfile, why, strerror(EFTYPE));
+ exit(ERREXIT);
+}
+
+error(n)
+ char *n;
+{
+ int sverr;
+
+ sverr = errno;
+ (void)fprintf(stderr, "symorder: ");
+ if (n)
+ (void)fprintf(stderr, "%s: ", n);
+ (void)fprintf(stderr, "%s\n", strerror(sverr));
+ exit(ERREXIT);
+}
+
+usage()
+{
+ (void)fprintf(stderr, "usage: symorder [-t] symlist file\n");
+ exit(ERREXIT);
+}
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