[src/trunk]: src/usr.bin/crunch/crunchgen Also disable ssp and fortify by def...

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/8a0c8104a4d8
branches:  trunk
changeset: 967682:8a0c8104a4d8
user:      christos <christos%NetBSD.org@localhost>
date:      Wed Dec 18 02:16:04 2019 +0000

description:
Also disable ssp and fortify by default.

diffstat:

 usr.bin/crunch/crunchgen/crunchgen.1 |   8 +++-
 usr.bin/crunch/crunchgen/crunchgen.c |  62 +++++++++++++++++++++++++----------
 2 files changed, 50 insertions(+), 20 deletions(-)

diffs (199 lines):

diff -r 1eeb9de14e4c -r 8a0c8104a4d8 usr.bin/crunch/crunchgen/crunchgen.1
--- a/usr.bin/crunch/crunchgen/crunchgen.1      Wed Dec 18 01:15:32 2019 +0000
+++ b/usr.bin/crunch/crunchgen/crunchgen.1      Wed Dec 18 02:16:04 2019 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: crunchgen.1,v 1.37 2018/07/26 08:57:26 wiz Exp $
+.\"    $NetBSD: crunchgen.1,v 1.38 2019/12/18 02:16:04 christos Exp $
 .\"
 .\" Copyright (c) 1994 University of Maryland
 .\" All Rights Reserved.
@@ -32,7 +32,7 @@
 .Nd generates build environment for a crunched binary
 .Sh SYNOPSIS
 .Nm
-.Op Fl fOopqSs
+.Op Fl FfOoPpqSs
 .Op Fl c Ar c-file-name
 .Op Fl D Ar src-root
 .Op Fl d Ar build-options
@@ -101,6 +101,8 @@
 .Ar exec-file-name .
 The default name is
 .Dq Aq Mt conf-name .
+.It Fl F
+Enable fortify.
 .It Fl f
 Flush cache.
 Forces the recalculation of cached parameters.
@@ -124,6 +126,8 @@
 Use existing object files.
 Rather than rebuilding object files via reach-over
 makefiles, instead search for and use existing object files.
+.It Fl P
+Enable stack protector.
 .It Fl p
 Produce static pie (position independent executables).
 .It Fl q
diff -r 1eeb9de14e4c -r 8a0c8104a4d8 usr.bin/crunch/crunchgen/crunchgen.c
--- a/usr.bin/crunch/crunchgen/crunchgen.c      Wed Dec 18 01:15:32 2019 +0000
+++ b/usr.bin/crunch/crunchgen/crunchgen.c      Wed Dec 18 02:16:04 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: crunchgen.c,v 1.92 2019/02/14 12:22:06 mrg Exp $       */
+/*     $NetBSD: crunchgen.c,v 1.93 2019/12/18 02:16:04 christos Exp $  */
 /*
  * Copyright (c) 1994 University of Maryland
  * All Rights Reserved.
@@ -38,7 +38,7 @@
 
 #include <sys/cdefs.h>
 #if !defined(lint)
-__RCSID("$NetBSD: crunchgen.c,v 1.92 2019/02/14 12:22:06 mrg Exp $");
+__RCSID("$NetBSD: crunchgen.c,v 1.93 2019/12/18 02:16:04 christos Exp $");
 #endif
 
 #include <stdlib.h>
@@ -104,6 +104,7 @@
 
 /* options */
 static int verbose, readcache, useobjs, oneobj, pie, libcsanitizer, sanitizer;
+static int ssp, fortify;
 
 static int reading_cache;
 static char *machine;
@@ -159,10 +160,12 @@
     if (argc > 0)
        pname = argv[0];
 
-    while ((optc = getopt(argc, argv, "m:c:d:e:fopqsD:L:Ov:")) != -1) {
+    while ((optc = getopt(argc, argv, "m:c:d:e:FfopPqsD:L:Ov:")) != -1) {
        switch(optc) {
        case 'f':       readcache = 0; break;
+       case 'F':       fortify = 1; break;
        case 'p':       pie = 1; break;
+       case 'P':       ssp = 1; break;
        case 'q':       verbose = 0; break;
        case 'O':       oneobj = 0; break;
        case 'o':       useobjs = 1, oneobj = 0; break;
@@ -225,7 +228,7 @@
 usage(void)
 {
     fprintf(stderr, 
-       "%s [-fOopqSs] [-c c-file-name] [-D src-root] [-d build-options]\n"
+       "%s [-FfOoPpqSs] [-c c-file-name] [-D src-root] [-d build-options]\n"
        "\t  [-e exec-file-name] [-L lib-dir] [-m makefile-name]\n"
        "\t  [-v var-spec] conf-file\n", pname);
     exit(1);
@@ -557,7 +560,7 @@
 static void fillin_program_objs(prog_t *p, char *path);
 static void top_makefile_rules(FILE *outmk);
 static void bottom_makefile_rules(FILE *outmk);
-static void prog_makefile_rules(FILE *outmk, prog_t *p);
+static void prog_makefile_rules(FILE *outmk, prog_t *p, const char *);
 static void output_strlst(FILE *outf, strlst_t *lst);
 static char *genident(char *str);
 static char *dir_search(char *progname);
@@ -804,10 +807,36 @@
 
 
 static void
+addno(char *str, size_t len, const char *stem)
+{
+       char buf[128];
+       snprintf(buf, sizeof(buf), "NO%s=\n", stem);
+       strlcat(str, buf, len);
+}
+
+
+static void
 gen_output_makefile(void)
 {
     prog_t *p;
     FILE *outmk;
+    char noes[1024], *ptr;
+
+    noes[0] = '\0';
+
+    if (!pie)
+           addno(noes, sizeof(noes), "PIE");
+    if (!ssp)
+           addno(noes, sizeof(noes), "SSP");
+    if (!fortify)
+           addno(noes, sizeof(noes), "FORT");
+    if (!libcsanitizer)
+           addno(noes, sizeof(noes), "LIBCSANITIZER");
+    if (!sanitizer)
+           addno(noes, sizeof(noes), "SANITIZER");
+
+    addno(noes, sizeof(noes), "MAN");
+
 
     (void)snprintf(line, sizeof(line), "generating %s", outmkname);
     status(line);
@@ -821,10 +850,14 @@
     fprintf(outmk, "# %s - generated from %s by crunchgen %s\n\n",
            outmkname, infilename, CRUNCH_VERSION);
 
+    fprintf(outmk, "%s\n", noes);
+    while ((ptr = strchr(noes, '\n')) != NULL)
+           *ptr = ' ';
+
     top_makefile_rules(outmk);
 
     for (p = progs; p != NULL; p = p->next)
-       prog_makefile_rules(outmk, p); 
+       prog_makefile_rules(outmk, p, noes); 
 
     fprintf(outmk, "\n.include <bsd.prog.mk>\n");
     fprintf(outmk, "\n# ========\n");
@@ -924,14 +957,6 @@
 {
     prog_t *p;
 
-    if (!pie)
-           fprintf(outmk, "NOPIE=\n");
-    if (!libcsanitizer)
-           fprintf(outmk, "NOLIBCSANITIZER=\n");
-    if (!sanitizer)
-           fprintf(outmk, "NOSANITIZER=\n");
-    fprintf(outmk, "NOMAN=\n\n");
-
     fprintf(outmk, "DBG=%s\n", dbg);
     fprintf(outmk, "MAKE?=make\n");
 #ifdef NEW_TOOLCHAIN
@@ -985,6 +1010,7 @@
            execfname);
 }
 
+
 static void
 bottom_makefile_rules(FILE *outmk)
 {
@@ -992,7 +1018,7 @@
 
 
 static void
-prog_makefile_rules(FILE *outmk, prog_t *p)
+prog_makefile_rules(FILE *outmk, prog_t *p, const char *noes)
 {
     strlst_t *lst;
 
@@ -1022,8 +1048,8 @@
            fprintf(outmk, "%s\\n", lst->str);
        fprintf(outmk, "'\\\n");
 #define MAKECMD \
-    "\t| ${MAKE} -f- CRUNCHEDPROG=1 DBG=${DBG:Q} LDSTATIC=${LDSTATIC:Q} "
-       fprintf(outmk, MAKECMD "depend");
+    "\t| ${MAKE} -f- CRUNCHEDPROG=1 %sDBG=${DBG:Q} LDSTATIC=${LDSTATIC:Q} "
+       fprintf(outmk, MAKECMD "depend", noes);
        fprintf(outmk, " )\n");
        fprintf(outmk, "\t( cd %s; printf '.PATH: ${%s_SRCDIR}\\n"
            ".CURDIR:= ${%s_SRCDIR}\\n"
@@ -1032,7 +1058,7 @@
        for (lst = vars; lst != NULL; lst = lst->next)
            fprintf(outmk, "%s\\n", lst->str);
        fprintf(outmk, "'\\\n");
-       fprintf(outmk, MAKECMD "%s %s ", libcsanitizer ? "" : "NOLIBCSANITIZER=", sanitizer ? "" : "NOSANITIZER=");
+       fprintf(outmk, MAKECMD, noes);
        if (p->objs)
            fprintf(outmk, "${%s_OBJS} ) \n\n", p->ident);
        else