Browse code
add check to detect certain compiler bugs that cause incorrect code generation for CLI_ISCONTAINED. So we avoid having bugs like #613, and #670 reported over and over.
| ... | ... |
@@ -1,3 +1,8 @@ |
| 1 |
+Fri Sep 21 00:13:32 EEST 2007(edwin) |
|
| 2 |
+------------------------------------ |
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+ * configure, configure.in: add check to detect certain compiler bugs that |
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| 4 |
+ cause incorrect code generation for CLI_ISCONTAINED. |
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+ |
|
| 1 | 6 |
Thu Sep 20 23:19:20 EEST 2007(edwin) |
| 2 | 7 |
------------------------------------ |
| 3 | 8 |
* libclamav/phishcheck.c: improve url extraction algorithm. |
| ... | ... |
@@ -1495,6 +1495,7 @@ Optional Features: |
| 1495 | 1495 |
--enable-fast-install[=PKGS] |
| 1496 | 1496 |
optimize for fast installation [default=yes] |
| 1497 | 1497 |
--disable-libtool-lock avoid locking (might break parallel builds) |
| 1498 |
+ --disable-gcc-vcheck do not check for buggy gcc version |
|
| 1498 | 1499 |
--enable-experimental enable experimental code |
| 1499 | 1500 |
--enable-maintainer-mode enable make rules and dependencies not useful |
| 1500 | 1501 |
(and sometimes confusing) to the casual installer |
| ... | ... |
@@ -19969,6 +19970,346 @@ _ACEOF |
| 19969 | 19969 |
fi |
| 19970 | 19970 |
|
| 19971 | 19971 |
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| 19972 |
+# Check whether --enable-gcc-vcheck was given. |
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| 19973 |
+if test "${enable_gcc_vcheck+set}" = set; then
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|
| 19974 |
+ enableval=$enable_gcc_vcheck; gcc_check=$enableval |
|
| 19975 |
+else |
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+ gcc_check="yes" |
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| 19977 |
+fi |
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+ |
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+ |
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| 19980 |
+msg_gcc_check="use --disable-gcc-vcheck to disable this check. Before reporting any bugs check with a supported version of gcc" |
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| 19981 |
+ |
|
| 19982 |
+if test "$gcc_check" = "yes"; then |
|
| 19983 |
+ if test "x$ac_compiler_gnu" = "xyes"; then |
|
| 19984 |
+ { echo "$as_me:$LINENO: checking for a supported version of gcc" >&5
|
|
| 19985 |
+echo $ECHO_N "checking for a supported version of gcc... $ECHO_C" >&6; } |
|
| 19986 |
+ gcc_version=`${CC} -dumpversion`
|
|
| 19987 |
+ case "${gcc_version}" in
|
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| 19988 |
+ 4.1.0*) |
|
| 19989 |
+ { echo "$as_me:$LINENO: result: no (${gcc_version})" >&5
|
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| 19990 |
+echo "${ECHO_T}no (${gcc_version})" >&6; }
|
|
| 19991 |
+ { { echo "$as_me:$LINENO: error: gcc 4.1.0 is known to incorrectly compile upx.c. Upgrade your compiler to at least 4.1.1/4.1.2)" >&5
|
|
| 19992 |
+echo "$as_me: error: gcc 4.1.0 is known to incorrectly compile upx.c. Upgrade your compiler to at least 4.1.1/4.1.2)" >&2;} |
|
| 19993 |
+ { (exit 1); exit 1; }; }
|
|
| 19994 |
+ ;; |
|
| 19995 |
+ *) |
|
| 19996 |
+ { echo "$as_me:$LINENO: result: ok (${gcc_version})" >&5
|
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| 19997 |
+echo "${ECHO_T}ok (${gcc_version})" >&6; }
|
|
| 19998 |
+ ;; |
|
| 19999 |
+ esac |
|
| 20000 |
+ fi |
|
| 20001 |
+fi |
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| 20002 |
+ |
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| 20003 |
+ |
|
| 20004 |
+{ echo "$as_me:$LINENO: checking for gcc bug PR27603" >&5
|
|
| 20005 |
+echo $ECHO_N "checking for gcc bug PR27603... $ECHO_C" >&6; } |
|
| 20006 |
+if test "$cross_compiling" = yes; then |
|
| 20007 |
+ { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling
|
|
| 20008 |
+See \`config.log' for more details." >&5 |
|
| 20009 |
+echo "$as_me: error: cannot run test program while cross compiling |
|
| 20010 |
+See \`config.log' for more details." >&2;} |
|
| 20011 |
+ { (exit 1); exit 1; }; }
|
|
| 20012 |
+else |
|
| 20013 |
+ cat >conftest.$ac_ext <<_ACEOF |
|
| 20014 |
+/* confdefs.h. */ |
|
| 20015 |
+_ACEOF |
|
| 20016 |
+cat confdefs.h >>conftest.$ac_ext |
|
| 20017 |
+cat >>conftest.$ac_ext <<_ACEOF |
|
| 20018 |
+/* end confdefs.h. */ |
|
| 20019 |
+ |
|
| 20020 |
+void exit (int); |
|
| 20021 |
+void abort (void); |
|
| 20022 |
+int a; |
|
| 20023 |
+int main() |
|
| 20024 |
+{
|
|
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+ int j; |
|
| 20026 |
+ for (j = 0; j < 6; j++) |
|
| 20027 |
+ {
|
|
| 20028 |
+ if ((unsigned)j - 3 <= 1) |
|
| 20029 |
+ exit (0); |
|
| 20030 |
+ a = 1000 * (6 - j); |
|
| 20031 |
+ } |
|
| 20032 |
+ abort (); |
|
| 20033 |
+} |
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+ |
|
| 20035 |
+_ACEOF |
|
| 20036 |
+rm -f conftest$ac_exeext |
|
| 20037 |
+if { (ac_try="$ac_link"
|
|
| 20038 |
+case "(($ac_try" in |
|
| 20039 |
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; |
|
| 20040 |
+ *) ac_try_echo=$ac_try;; |
|
| 20041 |
+esac |
|
| 20042 |
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 |
|
| 20043 |
+ (eval "$ac_link") 2>&5 |
|
| 20044 |
+ ac_status=$? |
|
| 20045 |
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5 |
|
| 20046 |
+ (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
|
|
| 20047 |
+ { (case "(($ac_try" in
|
|
| 20048 |
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; |
|
| 20049 |
+ *) ac_try_echo=$ac_try;; |
|
| 20050 |
+esac |
|
| 20051 |
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 |
|
| 20052 |
+ (eval "$ac_try") 2>&5 |
|
| 20053 |
+ ac_status=$? |
|
| 20054 |
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5 |
|
| 20055 |
+ (exit $ac_status); }; }; then |
|
| 20056 |
+ { echo "$as_me:$LINENO: result: ok, bug not present" >&5
|
|
| 20057 |
+echo "${ECHO_T}ok, bug not present" >&6; }
|
|
| 20058 |
+else |
|
| 20059 |
+ echo "$as_me: program exited with status $ac_status" >&5 |
|
| 20060 |
+echo "$as_me: failed program was:" >&5 |
|
| 20061 |
+sed 's/^/| /' conftest.$ac_ext >&5 |
|
| 20062 |
+ |
|
| 20063 |
+( exit $ac_status ) |
|
| 20064 |
+{ { echo "$as_me:$LINENO: error: your compiler has gcc PR27603 bug, use a different compiler, see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27603" >&5
|
|
| 20065 |
+echo "$as_me: error: your compiler has gcc PR27603 bug, use a different compiler, see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27603" >&2;} |
|
| 20066 |
+ { (exit 1); exit 1; }; }
|
|
| 20067 |
+fi |
|
| 20068 |
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext |
|
| 20069 |
+fi |
|
| 20070 |
+ |
|
| 20071 |
+ |
|
| 20072 |
+ |
|
| 20073 |
+{ echo "$as_me:$LINENO: checking for gcc bug PR28045" >&5
|
|
| 20074 |
+echo $ECHO_N "checking for gcc bug PR28045... $ECHO_C" >&6; } |
|
| 20075 |
+if test "$cross_compiling" = yes; then |
|
| 20076 |
+ { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling
|
|
| 20077 |
+See \`config.log' for more details." >&5 |
|
| 20078 |
+echo "$as_me: error: cannot run test program while cross compiling |
|
| 20079 |
+See \`config.log' for more details." >&2;} |
|
| 20080 |
+ { (exit 1); exit 1; }; }
|
|
| 20081 |
+else |
|
| 20082 |
+ cat >conftest.$ac_ext <<_ACEOF |
|
| 20083 |
+/* confdefs.h. */ |
|
| 20084 |
+_ACEOF |
|
| 20085 |
+cat confdefs.h >>conftest.$ac_ext |
|
| 20086 |
+cat >>conftest.$ac_ext <<_ACEOF |
|
| 20087 |
+/* end confdefs.h. */ |
|
| 20088 |
+ |
|
| 20089 |
+extern void abort(void); |
|
| 20090 |
+struct a |
|
| 20091 |
+{
|
|
| 20092 |
+ unsigned int bits : 1; |
|
| 20093 |
+ signed long val : ((sizeof(long) * 8) - 1); |
|
| 20094 |
+}; |
|
| 20095 |
+int Fnegate (struct a b) |
|
| 20096 |
+{
|
|
| 20097 |
+ if ((-((long)b.val)) <= ((long) ((1UL << ((sizeof(long) * 8) - 2)) -1UL)) |
|
| 20098 |
+ && (-((long)b.val)) >= (-(((long) ((1UL << ((sizeof(long) * 8) - 2)) -1UL))) - 1)) |
|
| 20099 |
+ return 0 ; |
|
| 20100 |
+ abort (); |
|
| 20101 |
+} |
|
| 20102 |
+int main () |
|
| 20103 |
+{
|
|
| 20104 |
+ struct a b = {1, 1};
|
|
| 20105 |
+ Fnegate (b); |
|
| 20106 |
+ return 0; |
|
| 20107 |
+} |
|
| 20108 |
+ |
|
| 20109 |
+_ACEOF |
|
| 20110 |
+rm -f conftest$ac_exeext |
|
| 20111 |
+if { (ac_try="$ac_link"
|
|
| 20112 |
+case "(($ac_try" in |
|
| 20113 |
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; |
|
| 20114 |
+ *) ac_try_echo=$ac_try;; |
|
| 20115 |
+esac |
|
| 20116 |
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 |
|
| 20117 |
+ (eval "$ac_link") 2>&5 |
|
| 20118 |
+ ac_status=$? |
|
| 20119 |
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5 |
|
| 20120 |
+ (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
|
|
| 20121 |
+ { (case "(($ac_try" in
|
|
| 20122 |
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; |
|
| 20123 |
+ *) ac_try_echo=$ac_try;; |
|
| 20124 |
+esac |
|
| 20125 |
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 |
|
| 20126 |
+ (eval "$ac_try") 2>&5 |
|
| 20127 |
+ ac_status=$? |
|
| 20128 |
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5 |
|
| 20129 |
+ (exit $ac_status); }; }; then |
|
| 20130 |
+ { echo "$as_me:$LINENO: result: ok, bug not present" >&5
|
|
| 20131 |
+echo "${ECHO_T}ok, bug not present" >&6; }
|
|
| 20132 |
+else |
|
| 20133 |
+ echo "$as_me: program exited with status $ac_status" >&5 |
|
| 20134 |
+echo "$as_me: failed program was:" >&5 |
|
| 20135 |
+sed 's/^/| /' conftest.$ac_ext >&5 |
|
| 20136 |
+ |
|
| 20137 |
+( exit $ac_status ) |
|
| 20138 |
+{ { echo "$as_me:$LINENO: error: your compiler has gcc PR28045 bug, use a different compiler, see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28045" >&5
|
|
| 20139 |
+echo "$as_me: error: your compiler has gcc PR28045 bug, use a different compiler, see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28045" >&2;} |
|
| 20140 |
+ { (exit 1); exit 1; }; }
|
|
| 20141 |
+fi |
|
| 20142 |
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext |
|
| 20143 |
+fi |
|
| 20144 |
+ |
|
| 20145 |
+ |
|
| 20146 |
+ |
|
| 20147 |
+{ echo "$as_me:$LINENO: checking for gcc bug PR26763-2" >&5
|
|
| 20148 |
+echo $ECHO_N "checking for gcc bug PR26763-2... $ECHO_C" >&6; } |
|
| 20149 |
+if test "$cross_compiling" = yes; then |
|
| 20150 |
+ { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling
|
|
| 20151 |
+See \`config.log' for more details." >&5 |
|
| 20152 |
+echo "$as_me: error: cannot run test program while cross compiling |
|
| 20153 |
+See \`config.log' for more details." >&2;} |
|
| 20154 |
+ { (exit 1); exit 1; }; }
|
|
| 20155 |
+else |
|
| 20156 |
+ cat >conftest.$ac_ext <<_ACEOF |
|
| 20157 |
+/* confdefs.h. */ |
|
| 20158 |
+_ACEOF |
|
| 20159 |
+cat confdefs.h >>conftest.$ac_ext |
|
| 20160 |
+cat >>conftest.$ac_ext <<_ACEOF |
|
| 20161 |
+/* end confdefs.h. */ |
|
| 20162 |
+ |
|
| 20163 |
+extern void abort(void); |
|
| 20164 |
+ |
|
| 20165 |
+int try (char *a, int d) |
|
| 20166 |
+{
|
|
| 20167 |
+ return a + d > a; |
|
| 20168 |
+} |
|
| 20169 |
+ |
|
| 20170 |
+int main(void) |
|
| 20171 |
+{
|
|
| 20172 |
+ char bla[100]; |
|
| 20173 |
+ |
|
| 20174 |
+ if (try (bla + 50, -1)) |
|
| 20175 |
+ abort (); |
|
| 20176 |
+ |
|
| 20177 |
+ return 0; |
|
| 20178 |
+} |
|
| 20179 |
+ |
|
| 20180 |
+_ACEOF |
|
| 20181 |
+rm -f conftest$ac_exeext |
|
| 20182 |
+if { (ac_try="$ac_link"
|
|
| 20183 |
+case "(($ac_try" in |
|
| 20184 |
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; |
|
| 20185 |
+ *) ac_try_echo=$ac_try;; |
|
| 20186 |
+esac |
|
| 20187 |
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 |
|
| 20188 |
+ (eval "$ac_link") 2>&5 |
|
| 20189 |
+ ac_status=$? |
|
| 20190 |
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5 |
|
| 20191 |
+ (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
|
|
| 20192 |
+ { (case "(($ac_try" in
|
|
| 20193 |
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; |
|
| 20194 |
+ *) ac_try_echo=$ac_try;; |
|
| 20195 |
+esac |
|
| 20196 |
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 |
|
| 20197 |
+ (eval "$ac_try") 2>&5 |
|
| 20198 |
+ ac_status=$? |
|
| 20199 |
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5 |
|
| 20200 |
+ (exit $ac_status); }; }; then |
|
| 20201 |
+ { echo "$as_me:$LINENO: result: ok, bug not present" >&5
|
|
| 20202 |
+echo "${ECHO_T}ok, bug not present" >&6; }
|
|
| 20203 |
+else |
|
| 20204 |
+ echo "$as_me: program exited with status $ac_status" >&5 |
|
| 20205 |
+echo "$as_me: failed program was:" >&5 |
|
| 20206 |
+sed 's/^/| /' conftest.$ac_ext >&5 |
|
| 20207 |
+ |
|
| 20208 |
+( exit $ac_status ) |
|
| 20209 |
+{ { echo "$as_me:$LINENO: error: your compiler has gcc PR26763-2 bug, use a different compiler, see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26763" >&5
|
|
| 20210 |
+echo "$as_me: error: your compiler has gcc PR26763-2 bug, use a different compiler, see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26763" >&2;} |
|
| 20211 |
+ { (exit 1); exit 1; }; }
|
|
| 20212 |
+fi |
|
| 20213 |
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext |
|
| 20214 |
+fi |
|
| 20215 |
+ |
|
| 20216 |
+ |
|
| 20217 |
+ |
|
| 20218 |
+{ echo "$as_me:$LINENO: checking for valid code generation of CLI_ISCONTAINED" >&5
|
|
| 20219 |
+echo $ECHO_N "checking for valid code generation of CLI_ISCONTAINED... $ECHO_C" >&6; } |
|
| 20220 |
+if test "$cross_compiling" = yes; then |
|
| 20221 |
+ { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling
|
|
| 20222 |
+See \`config.log' for more details." >&5 |
|
| 20223 |
+echo "$as_me: error: cannot run test program while cross compiling |
|
| 20224 |
+See \`config.log' for more details." >&2;} |
|
| 20225 |
+ { (exit 1); exit 1; }; }
|
|
| 20226 |
+else |
|
| 20227 |
+ cat >conftest.$ac_ext <<_ACEOF |
|
| 20228 |
+/* confdefs.h. */ |
|
| 20229 |
+_ACEOF |
|
| 20230 |
+cat confdefs.h >>conftest.$ac_ext |
|
| 20231 |
+cat >>conftest.$ac_ext <<_ACEOF |
|
| 20232 |
+/* end confdefs.h. */ |
|
| 20233 |
+ |
|
| 20234 |
+#include <stdint.h> |
|
| 20235 |
+#include <stdio.h> |
|
| 20236 |
+static struct v{
|
|
| 20237 |
+ char* dst; |
|
| 20238 |
+ uint32_t dsize; |
|
| 20239 |
+ uint32_t dcur; |
|
| 20240 |
+ uint32_t backsize; |
|
| 20241 |
+ int32_t unp_offset; |
|
| 20242 |
+} values[] = {
|
|
| 20243 |
+ {(char*)0xf78ab008, 0x2e000, 1, 4, 0xfffff9f3},
|
|
| 20244 |
+ {(char*)0xb7af1008, 0x2e000, 1, 4, 0xfffff9f3}
|
|
| 20245 |
+ |
|
| 20246 |
+}; |
|
| 20247 |
+extern void abort(void); |
|
| 20248 |
+ |
|
| 20249 |
+#define CLI_ISCONTAINED(bb, bb_size, sb, sb_size) \ |
|
| 20250 |
+ (bb_size > 0 && sb_size > 0 && sb_size <= bb_size \ |
|
| 20251 |
+ && sb >= bb && sb + sb_size <= bb + bb_size && sb + sb_size > bb) |
|
| 20252 |
+ |
|
| 20253 |
+int main() |
|
| 20254 |
+{
|
|
| 20255 |
+ int i; |
|
| 20256 |
+ for(i=0;i<sizeof(values)/sizeof(values[0]);i++) {
|
|
| 20257 |
+ struct v* v= &values[i]; |
|
| 20258 |
+ char* dst = v->dst; |
|
| 20259 |
+ uint32_t* dsize = &v->dsize; |
|
| 20260 |
+ uint32_t dcur = v->dcur; |
|
| 20261 |
+ uint32_t backsize = v->backsize-1; |
|
| 20262 |
+ int32_t unp_offset = v->unp_offset; |
|
| 20263 |
+ |
|
| 20264 |
+ if(!CLI_ISCONTAINED(dst, *dsize, dst+dcur+unp_offset, backsize) || |
|
| 20265 |
+ !CLI_ISCONTAINED(dst, *dsize,dst+dcur,backsize) || unp_offset >= 0) {
|
|
| 20266 |
+ continue; |
|
| 20267 |
+ } |
|
| 20268 |
+ abort(); |
|
| 20269 |
+ } |
|
| 20270 |
+ return 0; |
|
| 20271 |
+} |
|
| 20272 |
+ |
|
| 20273 |
+_ACEOF |
|
| 20274 |
+rm -f conftest$ac_exeext |
|
| 20275 |
+if { (ac_try="$ac_link"
|
|
| 20276 |
+case "(($ac_try" in |
|
| 20277 |
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; |
|
| 20278 |
+ *) ac_try_echo=$ac_try;; |
|
| 20279 |
+esac |
|
| 20280 |
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 |
|
| 20281 |
+ (eval "$ac_link") 2>&5 |
|
| 20282 |
+ ac_status=$? |
|
| 20283 |
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5 |
|
| 20284 |
+ (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
|
|
| 20285 |
+ { (case "(($ac_try" in
|
|
| 20286 |
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; |
|
| 20287 |
+ *) ac_try_echo=$ac_try;; |
|
| 20288 |
+esac |
|
| 20289 |
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 |
|
| 20290 |
+ (eval "$ac_try") 2>&5 |
|
| 20291 |
+ ac_status=$? |
|
| 20292 |
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5 |
|
| 20293 |
+ (exit $ac_status); }; }; then |
|
| 20294 |
+ { echo "$as_me:$LINENO: result: ok, bug not present" >&5
|
|
| 20295 |
+echo "${ECHO_T}ok, bug not present" >&6; }
|
|
| 20296 |
+else |
|
| 20297 |
+ echo "$as_me: program exited with status $ac_status" >&5 |
|
| 20298 |
+echo "$as_me: failed program was:" >&5 |
|
| 20299 |
+sed 's/^/| /' conftest.$ac_ext >&5 |
|
| 20300 |
+ |
|
| 20301 |
+( exit $ac_status ) |
|
| 20302 |
+{ { echo "$as_me:$LINENO: error: your compiler has a bug that causes clamav 670, use a different compiler, see http://bugs.clamav.net/bugzilla/show_bug.cgi?id=670" >&5
|
|
| 20303 |
+echo "$as_me: error: your compiler has a bug that causes clamav 670, use a different compiler, see http://bugs.clamav.net/bugzilla/show_bug.cgi?id=670" >&2;} |
|
| 20304 |
+ { (exit 1); exit 1; }; }
|
|
| 20305 |
+fi |
|
| 20306 |
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext |
|
| 20307 |
+fi |
|
| 20308 |
+ |
|
| 20309 |
+ |
|
| 20310 |
+ |
|
| 20311 |
+ |
|
| 19972 | 20312 |
|
| 19973 | 20313 |
|
| 19974 | 20314 |
|
| ... | ... |
@@ -40,6 +40,149 @@ AC_DEFINE(SCANBUFF, 131072, [scan buffer size]) |
| 40 | 40 |
AC_DEFINE(FILEBUFF, 8192, [file i/o buffer size]) |
| 41 | 41 |
|
| 42 | 42 |
AC_HEADER_STDC |
| 43 |
+ |
|
| 44 |
+AC_ARG_ENABLE(gcc-vcheck, |
|
| 45 |
+[ --disable-gcc-vcheck do not check for buggy gcc version ], |
|
| 46 |
+gcc_check=$enableval, gcc_check="yes") |
|
| 47 |
+ |
|
| 48 |
+msg_gcc_check="use --disable-gcc-vcheck to disable this check. Before reporting any bugs check with a supported version of gcc" |
|
| 49 |
+ |
|
| 50 |
+dnl Check for gcc-4.1.0 |
|
| 51 |
+if test "$gcc_check" = "yes"; then |
|
| 52 |
+ if test "x$ac_compiler_gnu" = "xyes"; then |
|
| 53 |
+ AC_MSG_CHECKING([for a supported version of gcc]) |
|
| 54 |
+ gcc_version=`${CC} -dumpversion`
|
|
| 55 |
+ case "${gcc_version}" in
|
|
| 56 |
+ 4.1.0*) |
|
| 57 |
+ AC_MSG_RESULT([no (${gcc_version})])
|
|
| 58 |
+ AC_MSG_ERROR([gcc 4.1.0 is known to incorrectly compile upx.c. Upgrade your compiler to at least 4.1.1/4.1.2)]) |
|
| 59 |
+ ;; |
|
| 60 |
+ *) |
|
| 61 |
+ AC_MSG_RESULT([ok (${gcc_version})])
|
|
| 62 |
+ ;; |
|
| 63 |
+ esac |
|
| 64 |
+ fi |
|
| 65 |
+fi |
|
| 66 |
+ |
|
| 67 |
+dnl Checks if compiler produces valid code, regardless of compiler |
|
| 68 |
+dnl we do these checks here to avoid receiving endless bugreports about |
|
| 69 |
+dnl breakages due to compiler bugs. |
|
| 70 |
+ |
|
| 71 |
+dnl Check if compiler produces invalid code on gcc PR27603 (affects upx.c) |
|
| 72 |
+AC_MSG_CHECKING([for gcc bug PR27603]) |
|
| 73 |
+AC_TRY_RUN( |
|
| 74 |
+ [ |
|
| 75 |
+void exit (int); |
|
| 76 |
+void abort (void); |
|
| 77 |
+int a; |
|
| 78 |
+int main() |
|
| 79 |
+{
|
|
| 80 |
+ int j; |
|
| 81 |
+ for (j = 0; j < 6; j++) |
|
| 82 |
+ {
|
|
| 83 |
+ if ((unsigned)j - 3 <= 1) |
|
| 84 |
+ exit (0); |
|
| 85 |
+ a = 1000 * (6 - j); |
|
| 86 |
+ } |
|
| 87 |
+ abort (); |
|
| 88 |
+} |
|
| 89 |
+], [AC_MSG_RESULT([ok, bug not present])], |
|
| 90 |
+[AC_MSG_ERROR([your compiler has gcc PR27603 bug, use a different compiler, see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27603])]) |
|
| 91 |
+ |
|
| 92 |
+dnl Check if compiler produces invalid code on gcc PR28045 (affects upx.c) |
|
| 93 |
+AC_MSG_CHECKING([for gcc bug PR28045]) |
|
| 94 |
+AC_TRY_RUN( |
|
| 95 |
+ [ |
|
| 96 |
+extern void abort(void); |
|
| 97 |
+struct a |
|
| 98 |
+{
|
|
| 99 |
+ unsigned int bits : 1; |
|
| 100 |
+ signed long val : ((sizeof(long) * 8) - 1); |
|
| 101 |
+}; |
|
| 102 |
+int Fnegate (struct a b) |
|
| 103 |
+{
|
|
| 104 |
+ if ((-((long)b.val)) <= ((long) ((1UL << ((sizeof(long) * 8) - 2)) -1UL)) |
|
| 105 |
+ && (-((long)b.val)) >= (-(((long) ((1UL << ((sizeof(long) * 8) - 2)) -1UL))) - 1)) |
|
| 106 |
+ return 0 ; |
|
| 107 |
+ abort (); |
|
| 108 |
+} |
|
| 109 |
+int main () |
|
| 110 |
+{
|
|
| 111 |
+ struct a b = {1, 1};
|
|
| 112 |
+ Fnegate (b); |
|
| 113 |
+ return 0; |
|
| 114 |
+} |
|
| 115 |
+], [AC_MSG_RESULT([ok, bug not present])], |
|
| 116 |
+[AC_MSG_ERROR([your compiler has gcc PR28045 bug, use a different compiler, see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28045])]) |
|
| 117 |
+ |
|
| 118 |
+dnl Check if compiler produces invalid code on gcc PR26763-2 (affects upx.c) |
|
| 119 |
+AC_MSG_CHECKING([for gcc bug PR26763-2]) |
|
| 120 |
+AC_TRY_RUN( |
|
| 121 |
+ [ |
|
| 122 |
+extern void abort(void); |
|
| 123 |
+ |
|
| 124 |
+int try (char *a, int d) |
|
| 125 |
+{
|
|
| 126 |
+ return a + d > a; |
|
| 127 |
+} |
|
| 128 |
+ |
|
| 129 |
+int main(void) |
|
| 130 |
+{
|
|
| 131 |
+ char bla[100]; |
|
| 132 |
+ |
|
| 133 |
+ if (try (bla + 50, -1)) |
|
| 134 |
+ abort (); |
|
| 135 |
+ |
|
| 136 |
+ return 0; |
|
| 137 |
+} |
|
| 138 |
+], [AC_MSG_RESULT([ok, bug not present])], |
|
| 139 |
+[AC_MSG_ERROR([your compiler has gcc PR26763-2 bug, use a different compiler, see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26763])]) |
|
| 140 |
+ |
|
| 141 |
+dnl Check if compiler produces invalid code on own testcase based on upx.c |
|
| 142 |
+AC_MSG_CHECKING([for valid code generation of CLI_ISCONTAINED]) |
|
| 143 |
+AC_TRY_RUN( |
|
| 144 |
+ [ |
|
| 145 |
+#include <stdint.h> |
|
| 146 |
+#include <stdio.h> |
|
| 147 |
+static struct v{
|
|
| 148 |
+ char* dst; |
|
| 149 |
+ uint32_t dsize; |
|
| 150 |
+ uint32_t dcur; |
|
| 151 |
+ uint32_t backsize; |
|
| 152 |
+ int32_t unp_offset; |
|
| 153 |
+} values[] = {
|
|
| 154 |
+ {(char*)0xf78ab008, 0x2e000, 1, 4, 0xfffff9f3},
|
|
| 155 |
+ {(char*)0xb7af1008, 0x2e000, 1, 4, 0xfffff9f3}
|
|
| 156 |
+ |
|
| 157 |
+}; |
|
| 158 |
+extern void abort(void); |
|
| 159 |
+ |
|
| 160 |
+#define CLI_ISCONTAINED(bb, bb_size, sb, sb_size) \ |
|
| 161 |
+ (bb_size > 0 && sb_size > 0 && sb_size <= bb_size \ |
|
| 162 |
+ && sb >= bb && sb + sb_size <= bb + bb_size && sb + sb_size > bb) |
|
| 163 |
+ |
|
| 164 |
+int main() |
|
| 165 |
+{
|
|
| 166 |
+ int i; |
|
| 167 |
+ for(i=0;i<sizeof(values)/sizeof(values[0]);i++) {
|
|
| 168 |
+ struct v* v= &values[i]; |
|
| 169 |
+ char* dst = v->dst; |
|
| 170 |
+ uint32_t* dsize = &v->dsize; |
|
| 171 |
+ uint32_t dcur = v->dcur; |
|
| 172 |
+ uint32_t backsize = v->backsize-1; |
|
| 173 |
+ int32_t unp_offset = v->unp_offset; |
|
| 174 |
+ |
|
| 175 |
+ if(!CLI_ISCONTAINED(dst, *dsize, dst+dcur+unp_offset, backsize) || |
|
| 176 |
+ !CLI_ISCONTAINED(dst, *dsize,dst+dcur,backsize) || unp_offset >= 0) {
|
|
| 177 |
+ continue; |
|
| 178 |
+ } |
|
| 179 |
+ abort(); |
|
| 180 |
+ } |
|
| 181 |
+ return 0; |
|
| 182 |
+} |
|
| 183 |
+], [AC_MSG_RESULT([ok, bug not present])], |
|
| 184 |
+[AC_MSG_ERROR([your compiler has a bug that causes clamav 670, use a different compiler, see http://bugs.clamav.net/bugzilla/show_bug.cgi?id=670])]) |
|
| 185 |
+ |
|
| 43 | 186 |
AC_CHECK_HEADERS(stdint.h unistd.h sys/int_types.h dlfcn.h inttypes.h sys/inttypes.h memory.h ndir.h stdlib.h strings.h string.h sys/mman.h sys/param.h sys/stat.h sys/types.h malloc.h poll.h limits.h sys/filio.h sys/uio.h termios.h iconv.h stdbool.h pwd.h grp.h) |
| 44 | 187 |
AC_CHECK_HEADER(syslog.h,AC_DEFINE(USE_SYSLOG,1,[use syslog]),) |
| 45 | 188 |
|