Package: gcc-9 Version: 9.3.0-3 Severity: normal Dear Maintainer,
I am writing a general purpose convenience library called Mu (for
Miscellaneous Utilities). It includes an option parsing module intended
to be a replacement for getopt_long().
Options are defined in structures which include various information,
including an optional callback which will be called when the option is
found. The parse_opts() function has a flag `OPT_HELP' (or
`OPT_HELP_SHORT' or `OPT_HELP_LONG') which makes it automatically add a
'-h' and/or a '--help' option which calls a callback to print a usage
message.
The problem is, when the test program (test.c) is compiled with
optimization, the data fields (set at options.c:127-131) passed to the
callback are optimized out. This causes a segmentation fault and/or
error message when './test' is passed '-h' or '--help'. Note that when
the program is compiled without optimization, no memory errors are
reported when run under Valgrind (although memory errors *are* reported
when the program is compiled with optimization).
I thought that the problem may have been that I was casting the data
pointer to (void *), but I tried creating a test program to test that,
and that didn't seem to be the problem.
To compile the program with optimization, I ran:
$ make CC=gcc-9 CFLAGS='-Wall -O1' clean all
And without optimization:
$ make CC=gcc-9 CFLAGS='-Wall -O0' clean all
Note that the problem can be reproduced with GCC 10 also
(CC=gcc-10). Also note that no warnings are reported with -Wall, not
even with -O3. Three warnings are reported with -Werror, but I don't
think they are serious or relevant. Here they are, just in case
(compiled with -O3 to catch warnings it might not otherwise):
$ make CC=gcc-9 CFLAGS='-Wall -Wextra -O3' clean all
rm -f *.o test
gcc-9 -Wall -Wextra -O3 -c -o test.o test.c
gcc-9 -Wall -Wextra -O3 -c -o compat.o compat.c
gcc-9 -Wall -Wextra -O3 -c -o format.o format.c
format.c: In function ‘format_list’:
format.c:277:36: warning: comparison of integer expressions of different
signedness: ‘size_t’ {aka ‘long unsigned int’} and ‘int’ [-Wsign-compare]
277 | if (width && size + char_width > width - *col) {
| ^
In file included from format.c:34:
format.c:303:27: warning: comparison of integer expressions of different
signedness: ‘size_t’ {aka ‘long unsigned int’} and ‘int’ [-Wsign-compare]
303 | assert(index + tab_width > width - *col);
| ^
format.c:314:19: warning: comparison of integer expressions of different
signedness: ‘size_t’ {aka ‘long unsigned int’} and ‘int’ [-Wsign-compare]
314 | assert(index + 1 > width - *col);
| ^
gcc-9 -Wall -Wextra -O3 -c -o io.o io.c
gcc-9 -Wall -Wextra -O3 -c -o options.o options.c
gcc-9 -Wall -Wextra -O3 -c -o safe.o safe.c
gcc-9 test.o compat.o format.o io.o options.o safe.o -o test
Also note that when compiled with Clang (CC=clang), even with -O3, the
program works as expected and no memory errors are reported by Valgrind.
Note that only the -O* and all the -O* options trigger the bug. I tried
manually passing all the -f* options which (according to the
documentation) are enabled by the various -O* options. However,
strangely, I could not reproduce the bug that way.
The following patch adds a nop() function to options.c that is used to
prevent the data fields from being optimized out. When this patch is
applied, the issue is no longer present, even when compiled with -O3
(with gcc-9 or gcc-10).
--- options.c~ 2020-03-23 14:23:08.625333110 -0400
+++ options.c 2020-03-23 14:23:17.841369826 -0400
@@ -81,6 +81,13 @@
static int free_opts(const char *, const OPTION *);
static int format_help_callback(void *, char *);
+static void nop(const void *data, ...) {
+ /* We have to do this so GCC doesn't optimize calls to us away. */
+ va_list ap;
+ va_start(ap, data);
+ va_end(ap);
+}
+
/*
* Parse options. Returns zero on success or nonzero on error, in
* which case an error message will be printed to `stderr'. The last
@@ -137,6 +144,7 @@
opt->callback_none = format_help_callback;
opt->data = &data;
opt->help = "print this help and exit";
+ nop(data.prog_name, data.usage, data.desc, data.notes, data.options);
}
else {
/* This is slightly evil (casting it to a non-const), but we know
Since I was not able write a simpler program that triggers the bug, I
have attached the source tarball (mu.tar.gz). README.Bugs says that I
should provide the *.i files, so I have included them in the
tarball. Different .i files are produced under optimization, so I have
included the ones produced with '-O0 --save-temps'. I have also attached
a patch (nop_preprocessed.patch) that adds the nop() function to the
preprocessed options.i.
Here is the output of 'gcc-9 -v' and 'gcc-10 -v':
$ gcc-9 -v
Using built-in specs.
COLLECT_GCC=gcc-9
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/9/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none:hsa
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 9.3.0-3'
--with-bugurl=file:///usr/share/doc/gcc-9/README.Bugs
--enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++,gm2 --prefix=/usr
--with-gcc-major-version-only --program-suffix=-9
--program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--libdir=/usr/lib --enable-nls --enable-bootstrap --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-gnu-unique-object
--disable-vtable-verify --enable-plugin --enable-default-pie --with-system-zlib
--with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch
--disable-werror --with-arch-32=i686 --with-abi=m64
--with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic
--enable-offload-targets=nvptx-none,hsa --without-cuda-driver
--enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu
--target=x86_64-linux-gnu --with-build-config=bootstrap-lto-lean
--enable-link-mutex
Thread model: posix
gcc version 9.3.0 (Debian 9.3.0-3)
$ gcc-10 -v
Using built-in specs.
COLLECT_GCC=gcc-10
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/10/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none:amdgcn-amdhsa:hsa
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian
10-20200312-2' --with-bugurl=file:///usr/share/doc/gcc-10/README.Bugs
--enable-languages=c,c++,go,brig,d,fortran,objc,obj-c++,m2 --prefix=/usr
--with-gcc-major-version-only --program-suffix=-10
--program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug
--enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new
--enable-gnu-unique-object --disable-vtable-verify --enable-plugin
--enable-default-pie --with-system-zlib --with-target-system-zlib=auto
--enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686
--with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib
--with-tune=generic --enable-offload-targets=nvptx-none,amdgcn-amdhsa,hsa
--without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu
--host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 10.0.1 20200312 (experimental) [master revision
c56871dd15a:7ba6e7f0f21:daf2852b883762d921361462dad1f99320faca2a] (Debian
10-20200312-2)
I think this may be an upstream bug, but I'm not sure and README.Bugs
says "If in doubt, report the bug to the Debian BTS."
Thanks,
Asher
--
He was part of my dream, of course -- but then I was part of his dream too.
-- Lewis Carroll
--------
I prefer to send and receive mail encrypted. Please send me your
public key, and if you do not have my public key, please let me
know. Thanks.
GPG fingerprint: 38F3 975C D173 4037 B397 8095 D4C9 C4FC 5460 8E68
-- System Information:
Debian Release: bullseye/sid
APT prefers testing-debug
APT policy: (500, 'testing-debug'), (500, 'testing')
Architecture: amd64 (x86_64)
Kernel: Linux 5.4.0-4-amd64 (SMP w/2 CPU cores)
Kernel taint flags: TAINT_FIRMWARE_WORKAROUND
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages gcc-9 depends on:
ii binutils 2.34-5
ii cpp-9 9.3.0-3
ii gcc-9-base 9.3.0-3
ii libc6 2.30-2
ii libcc1-0 10-20200312-2
ii libgcc-9-dev 9.3.0-3
ii libgcc-s1 10-20200312-2
ii libgmp10 2:6.2.0+dfsg-4
ii libisl22 0.22.1-1
ii libmpc3 1.1.0-1
ii libmpfr6 4.0.2-1
ii libstdc++6 10-20200312-2
ii zlib1g 1:1.2.11.dfsg-2
Versions of packages gcc-9 recommends:
ii libc6-dev 2.30-2
Versions of packages gcc-9 suggests:
ii gcc-9-doc 9.2.0-1
pn gcc-9-locales <none>
pn gcc-9-multilib <none>
-- no debconf information
mu.tar.gz
Description: Mu source tarball
--- options.i~ 2020-03-23 14:56:38.434556710 -0400
+++ options.i 2020-03-23 14:56:47.334654330 -0400
@@ -2487,6 +2487,33 @@
static int free_opts(const char *, const OPTION *);
static int format_help_callback(void *, char *);
+static void nop(const void *data, ...) {
+
+ va_list ap;
+
+# 87 "options.c" 3 4
+ __builtin_va_start(
+# 87 "options.c"
+ ap
+# 87 "options.c" 3 4
+ ,
+# 87 "options.c"
+ data
+# 87 "options.c" 3 4
+ )
+# 87 "options.c"
+ ;
+
+# 88 "options.c" 3 4
+ __builtin_va_end(
+# 88 "options.c"
+ ap
+# 88 "options.c" 3 4
+ )
+# 88 "options.c"
+ ;
+}
+
@@ -2513,51 +2540,51 @@
for (n_opts = 0; !((options + n_opts)->short_opt == '\0' && (options + n_opts)->long_opt ==
-# 109 "options.c" 3 4
+# 116 "options.c" 3 4
((void *)0)
-# 109 "options.c"
+# 116 "options.c"
); n_opts++) {
const OPTION *opt = options + n_opts;
if (flags & 0b00001000)
-# 112 "options.c" 3 4
+# 119 "options.c" 3 4
((void) sizeof ((
-# 112 "options.c"
+# 119 "options.c"
opt->short_opt != 'h'
-# 112 "options.c" 3 4
+# 119 "options.c" 3 4
) ? 1 : 0), __extension__ ({ if (
-# 112 "options.c"
+# 119 "options.c"
opt->short_opt != 'h'
-# 112 "options.c" 3 4
+# 119 "options.c" 3 4
) ; else __assert_fail (
-# 112 "options.c"
+# 119 "options.c"
"opt->short_opt != 'h'"
-# 112 "options.c" 3 4
-, "options.c", 112, __extension__ __PRETTY_FUNCTION__); }))
-# 112 "options.c"
+# 119 "options.c" 3 4
+, "options.c", 119, __extension__ __PRETTY_FUNCTION__); }))
+# 119 "options.c"
;
if (flags & 0b00010000)
-# 114 "options.c" 3 4
+# 121 "options.c" 3 4
((void) sizeof ((
-# 114 "options.c"
+# 121 "options.c"
!opt->long_opt || strcmp(opt->long_opt, "help")
-# 114 "options.c" 3 4
+# 121 "options.c" 3 4
) ? 1 : 0), __extension__ ({ if (
-# 114 "options.c"
+# 121 "options.c"
!opt->long_opt || strcmp(opt->long_opt, "help")
-# 114 "options.c" 3 4
+# 121 "options.c" 3 4
) ; else __assert_fail (
-# 114 "options.c"
+# 121 "options.c"
"!opt->long_opt || strcmp(opt->long_opt, \"help\")"
-# 114 "options.c" 3 4
-, "options.c", 114, __extension__ __PRETTY_FUNCTION__); }))
-# 114 "options.c"
+# 121 "options.c" 3 4
+, "options.c", 121, __extension__ __PRETTY_FUNCTION__); }))
+# 121 "options.c"
;
}
- actual_opts = _xmalloc_line("options.c", 118, __func__, sizeof(*actual_opts) * (n_opts + 2));
+ actual_opts = _xmalloc_line("options.c", 125, __func__, sizeof(*actual_opts) * (n_opts + 2));
memcpy(actual_opts, options, sizeof(*actual_opts) * n_opts);
opt = actual_opts + n_opts;
@@ -2579,6 +2606,7 @@
opt->callback_none = format_help_callback;
opt->data = &data;
opt->help = "print this help and exit";
+ nop(data.prog_name, data.usage, data.desc, data.notes, data.options);
}
else {
@@ -2589,9 +2617,9 @@
for (const OPTION *opt = actual_opts; !((opt)->short_opt == '\0' && (opt)->long_opt ==
-# 149 "options.c" 3 4
+# 157 "options.c" 3 4
((void *)0)
-# 149 "options.c"
+# 157 "options.c"
); opt++) {
if (opt->found_opt)
*(opt->found_opt) = 0;
@@ -2614,51 +2642,51 @@
break;
case OPT_STRING:
arg->arg_string =
-# 170 "options.c" 3 4
+# 178 "options.c" 3 4
((void *)0)
-# 170 "options.c"
+# 178 "options.c"
;
break;
case OPT_FILE:
arg->arg_file =
-# 173 "options.c" 3 4
+# 181 "options.c" 3 4
((void *)0)
-# 173 "options.c"
+# 181 "options.c"
;
break;
case OPT_DIRECTORY:
arg->arg_directory =
-# 176 "options.c" 3 4
+# 184 "options.c" 3 4
((void *)0)
-# 176 "options.c"
+# 184 "options.c"
;
break;
default:
-# 179 "options.c" 3 4
+# 187 "options.c" 3 4
((void) sizeof ((
-# 179 "options.c"
+# 187 "options.c"
!"Invalid option type"
-# 179 "options.c" 3 4
+# 187 "options.c" 3 4
) ? 1 : 0), __extension__ ({ if (
-# 179 "options.c"
+# 187 "options.c"
!"Invalid option type"
-# 179 "options.c" 3 4
+# 187 "options.c" 3 4
) ; else __assert_fail (
-# 179 "options.c"
+# 187 "options.c"
"!\"Invalid option type\""
-# 179 "options.c" 3 4
- , "options.c", 179, __extension__ __PRETTY_FUNCTION__); }))
-# 179 "options.c"
+# 187 "options.c" 3 4
+ , "options.c", 187, __extension__ __PRETTY_FUNCTION__); }))
+# 187 "options.c"
;
}
}
if (opt->argstr)
*(opt->argstr) =
-# 184 "options.c" 3 4
+# 192 "options.c" 3 4
((void *)0)
-# 184 "options.c"
+# 192 "options.c"
;
}
}
@@ -2666,9 +2694,9 @@
for (int i = 1; i < argc; i++) {
char *optstr = argv[i];
const char *arg = (i + 1 < argc) ? argv[i+1] :
-# 190 "options.c" 3 4
+# 198 "options.c" 3 4
((void *)0)
-# 190 "options.c"
+# 198 "options.c"
;
@@ -2702,21 +2730,21 @@
if (flags & 0b00000001) {
-# 222 "options.c" 3 4
+# 230 "options.c" 3 4
((void) sizeof ((
-# 222 "options.c"
+# 230 "options.c"
!(flags & 0b00000010)
-# 222 "options.c" 3 4
+# 230 "options.c" 3 4
) ? 1 : 0), __extension__ ({ if (
-# 222 "options.c"
+# 230 "options.c"
!(flags & 0b00000010)
-# 222 "options.c" 3 4
+# 230 "options.c" 3 4
) ; else __assert_fail (
-# 222 "options.c"
+# 230 "options.c"
"!(flags & OPT_STOP_AFTER_ARG)"
-# 222 "options.c" 3 4
- , "options.c", 222, __extension__ __PRETTY_FUNCTION__); }))
-# 222 "options.c"
+# 230 "options.c" 3 4
+ , "options.c", 230, __extension__ __PRETTY_FUNCTION__); }))
+# 230 "options.c"
;
argv[(*p_argc)++] = optstr;
}
@@ -2731,9 +2759,9 @@
if (*p_argc < argc)
argv[*p_argc] =
-# 235 "options.c" 3 4
+# 243 "options.c" 3 4
((void *)0)
-# 235 "options.c"
+# 243 "options.c"
;
return ret == -1;
@@ -2753,9 +2781,9 @@
struct winsize ws;
if (ioctl(fileno(file),
-# 253 "options.c" 3 4
+# 261 "options.c" 3 4
0x5413
-# 253 "options.c"
+# 261 "options.c"
, &ws) >= 0)
width = ws.ws_col;
else
@@ -2768,9 +2796,9 @@
if (format(file, width, &cur_col, 0, 0, "Usage: %s %s\n%s\n%s",
prog_name, usage, desc, ((options)->short_opt == '\0' && (options)->long_opt ==
-# 264 "options.c" 3 4
+# 272 "options.c" 3 4
((void *)0)
-# 264 "options.c"
+# 272 "options.c"
) ? "" : "\n"))
return 1;
@@ -2781,9 +2809,9 @@
long_required_arg = short_opts = 0;
for (const OPTION *opt = options; !((opt)->short_opt == '\0' && (opt)->long_opt ==
-# 273 "options.c" 3 4
+# 281 "options.c" 3 4
((void *)0)
-# 273 "options.c"
+# 281 "options.c"
); opt++) {
if (opt->short_opt) {
short_opts = 1;
@@ -2801,9 +2829,9 @@
for (const OPTION *opt = options; !((opt)->short_opt == '\0' && (opt)->long_opt ==
-# 289 "options.c" 3 4
+# 297 "options.c" 3 4
((void *)0)
-# 289 "options.c"
+# 297 "options.c"
); opt++) {
if (opt->short_opt) {
if (format(file, width, &cur_col, 0, 0, " -%c", opt->short_opt))
@@ -2832,7 +2860,7 @@
return 0;
}
-# 328 "options.c"
+# 336 "options.c"
static int parse_short_opt(const char *prog_name, const char *optstr,
const char *argument, const OPTION *options,
int flags) {
@@ -2844,30 +2872,30 @@
for (char c = *optstr; (c = *optstr); optstr++) {
const OPTION *opt;
const char *argstr =
-# 338 "options.c" 3 4
+# 346 "options.c" 3 4
((void *)0)
-# 338 "options.c"
+# 346 "options.c"
;
for (opt = options; !((opt)->short_opt == '\0' && (opt)->long_opt ==
-# 341 "options.c" 3 4
+# 349 "options.c" 3 4
((void *)0)
-# 341 "options.c"
+# 349 "options.c"
); opt++) {
if (opt->short_opt == c)
break;
}
if (((opt)->short_opt == '\0' && (opt)->long_opt ==
-# 346 "options.c" 3 4
+# 354 "options.c" 3 4
((void *)0)
-# 346 "options.c"
+# 354 "options.c"
)) {
fprintf(
-# 347 "options.c" 3 4
+# 355 "options.c" 3 4
stderr
-# 347 "options.c"
+# 355 "options.c"
, "%s: '%c': invalid option\n", prog_name, c);
return -1;
}
@@ -2922,9 +2950,9 @@
if (*optstr == '=') {
fprintf(
-# 400 "options.c" 3 4
+# 408 "options.c" 3 4
stderr
-# 400 "options.c"
+# 408 "options.c"
, "%s: %s: invalid option\n", prog_name, optstr);
return -1;
}
@@ -2933,9 +2961,9 @@
index = find_unambiguously(options, optstr);
if (index < 0) {
fprintf(
-# 407 "options.c" 3 4
+# 415 "options.c" 3 4
stderr
-# 407 "options.c"
+# 415 "options.c"
, "%s: %s: invalid option\n", prog_name, optstr);
return -1;
}
@@ -2977,9 +3005,9 @@
optstr = opt->long_opt;
fprintf(
-# 447 "options.c" 3 4
+# 455 "options.c" 3 4
stderr
-# 447 "options.c"
+# 455 "options.c"
, "%s: '%s': option requires argument\n", prog_name, optstr);
return 1;
@@ -2992,16 +3020,16 @@
if (opt->has_arg == OPT_NONE) {
if (is_short)
fprintf(
-# 458 "options.c" 3 4
+# 466 "options.c" 3 4
stderr
-# 458 "options.c"
+# 466 "options.c"
, "%s: '%c': option does not take argument\n",
prog_name, opt->short_opt);
else
fprintf(
-# 461 "options.c" 3 4
+# 469 "options.c" 3 4
stderr
-# 461 "options.c"
+# 469 "options.c"
, "%s: %s: option does not take argument\n",
prog_name, opt->long_opt);
@@ -3034,17 +3062,17 @@
case OPT_INT:
-# 492 "options.c" 3 4
+# 500 "options.c" 3 4
(*__errno_location ())
-# 492 "options.c"
+# 500 "options.c"
= 0;
arg_int = strtol(argstr, &endptr, 0);
if (*endptr) {
fprintf(
-# 496 "options.c" 3 4
+# 504 "options.c" 3 4
stderr
-# 496 "options.c"
+# 504 "options.c"
, "%s: %s: not a%s\n", prog_name, argstr,
(opt->type == OPT_BOOL) ? " yes or no value" : "n integer");
return 1;
@@ -3052,34 +3080,34 @@
if (opt->type == OPT_INT) {
if (!
-# 502 "options.c" 3 4
+# 510 "options.c" 3 4
(*__errno_location ())
-# 502 "options.c"
+# 510 "options.c"
&& (arg_int < opt->ibound.lower ||
arg_int > opt->ibound.upper))
-# 504 "options.c" 3 4
+# 512 "options.c" 3 4
(*__errno_location ())
-# 504 "options.c"
+# 512 "options.c"
=
-# 504 "options.c" 3 4
+# 512 "options.c" 3 4
34
-# 504 "options.c"
+# 512 "options.c"
;
if (
-# 506 "options.c" 3 4
+# 514 "options.c" 3 4
(*__errno_location ())
-# 506 "options.c"
+# 514 "options.c"
) {
fprintf(
-# 507 "options.c" 3 4
+# 515 "options.c" 3 4
stderr
-# 507 "options.c"
+# 515 "options.c"
, "%s: %s: %s\n", prog_name, argstr, strerror(
-# 507 "options.c" 3 4
+# 515 "options.c" 3 4
(*__errno_location ())
-# 507 "options.c"
+# 515 "options.c"
));
return 1;
}
@@ -3094,51 +3122,51 @@
case OPT_FLOAT:
-# 520 "options.c" 3 4
+# 528 "options.c" 3 4
(*__errno_location ())
-# 520 "options.c"
+# 528 "options.c"
= 0;
p_arg->arg_float = strtod(argstr, &endptr);
if (*endptr) {
fprintf(
-# 524 "options.c" 3 4
+# 532 "options.c" 3 4
stderr
-# 524 "options.c"
+# 532 "options.c"
, "%s: %s: not a floating-point number\n",
prog_name, argstr);
return 1;
}
if (!
-# 529 "options.c" 3 4
+# 537 "options.c" 3 4
(*__errno_location ())
-# 529 "options.c"
+# 537 "options.c"
&& (p_arg->arg_float < opt->fbound.lower ||
p_arg->arg_float > opt->fbound.upper))
-# 531 "options.c" 3 4
+# 539 "options.c" 3 4
(*__errno_location ())
-# 531 "options.c"
+# 539 "options.c"
=
-# 531 "options.c" 3 4
+# 539 "options.c" 3 4
34
-# 531 "options.c"
+# 539 "options.c"
;
if (
-# 533 "options.c" 3 4
+# 541 "options.c" 3 4
(*__errno_location ())
-# 533 "options.c"
+# 541 "options.c"
) {
fprintf(
-# 534 "options.c" 3 4
+# 542 "options.c" 3 4
stderr
-# 534 "options.c"
+# 542 "options.c"
, "%s: %s: %s\n", prog_name, argstr, strerror(
-# 534 "options.c" 3 4
+# 542 "options.c" 3 4
(*__errno_location ())
-# 534 "options.c"
+# 542 "options.c"
));
return 1;
}
@@ -3153,28 +3181,28 @@
p_arg->arg_file = file_open(argstr, opt->file_mode);
if (!p_arg->arg_file) {
fprintf(
-# 547 "options.c" 3 4
+# 555 "options.c" 3 4
stderr
-# 547 "options.c"
+# 555 "options.c"
, "%s: cannot open %s: %s\n",
prog_name, argstr, strerror(
-# 548 "options.c" 3 4
+# 556 "options.c" 3 4
(*__errno_location ())
-# 548 "options.c"
+# 556 "options.c"
));
return 1;
}
if (p_arg->arg_file ==
-# 552 "options.c" 3 4
+# 560 "options.c" 3 4
stdin
-# 552 "options.c"
+# 560 "options.c"
)
argstr = "<stdin>";
else if (p_arg->arg_file ==
-# 554 "options.c" 3 4
+# 562 "options.c" 3 4
stdout
-# 554 "options.c"
+# 562 "options.c"
)
argstr = "<stdout>";
@@ -3184,14 +3212,14 @@
p_arg->arg_directory = opendir(argstr);
if (!p_arg->arg_directory) {
fprintf(
-# 562 "options.c" 3 4
+# 570 "options.c" 3 4
stderr
-# 562 "options.c"
+# 570 "options.c"
, "%s: cannot open directory %s: %s\n",
prog_name, argstr, strerror(
-# 563 "options.c" 3 4
+# 571 "options.c" 3 4
(*__errno_location ())
-# 563 "options.c"
+# 571 "options.c"
));
return 1;
}
@@ -3200,21 +3228,21 @@
default:
-# 570 "options.c" 3 4
+# 578 "options.c" 3 4
((void) sizeof ((
-# 570 "options.c"
+# 578 "options.c"
!"Invalid option type"
-# 570 "options.c" 3 4
+# 578 "options.c" 3 4
) ? 1 : 0), __extension__ ({ if (
-# 570 "options.c"
+# 578 "options.c"
!"Invalid option type"
-# 570 "options.c" 3 4
+# 578 "options.c" 3 4
) ; else __assert_fail (
-# 570 "options.c"
+# 578 "options.c"
"!\"Invalid option type\""
-# 570 "options.c" 3 4
- , "options.c", 570, __extension__ __PRETTY_FUNCTION__); }))
-# 570 "options.c"
+# 578 "options.c" 3 4
+ , "options.c", 578, __extension__ __PRETTY_FUNCTION__); }))
+# 578 "options.c"
;
}
}
@@ -3263,30 +3291,30 @@
break;
default:
-# 617 "options.c" 3 4
+# 625 "options.c" 3 4
((void) sizeof ((
-# 617 "options.c"
+# 625 "options.c"
!"Invalid option type"
-# 617 "options.c" 3 4
+# 625 "options.c" 3 4
) ? 1 : 0), __extension__ ({ if (
-# 617 "options.c"
+# 625 "options.c"
!"Invalid option type"
-# 617 "options.c" 3 4
+# 625 "options.c" 3 4
) ; else __assert_fail (
-# 617 "options.c"
+# 625 "options.c"
"!\"Invalid option type\""
-# 617 "options.c" 3 4
-, "options.c", 617, __extension__ __PRETTY_FUNCTION__); }))
-# 617 "options.c"
+# 625 "options.c" 3 4
+, "options.c", 625, __extension__ __PRETTY_FUNCTION__); }))
+# 625 "options.c"
;
}
}
if (ret)
fprintf(
-# 622 "options.c" 3 4
+# 630 "options.c" 3 4
stderr
-# 622 "options.c"
+# 630 "options.c"
, "%s: %s\n", prog_name, err);
}
@@ -3299,14 +3327,14 @@
case OPT_FILE:
if (file_close(p_arg->arg_file)) {
fprintf(
-# 633 "options.c" 3 4
+# 641 "options.c" 3 4
stderr
-# 633 "options.c"
+# 641 "options.c"
, "%s: cannot close %s: %s\n",
prog_name, argstr, strerror(
-# 634 "options.c" 3 4
+# 642 "options.c" 3 4
(*__errno_location ())
-# 634 "options.c"
+# 642 "options.c"
));
return 1;
}
@@ -3315,14 +3343,14 @@
case OPT_DIRECTORY:
if (closedir(p_arg->arg_directory)) {
fprintf(
-# 641 "options.c" 3 4
+# 649 "options.c" 3 4
stderr
-# 641 "options.c"
+# 649 "options.c"
, "%s: cannot close directory %s: %s\n",
prog_name, argstr, strerror(
-# 642 "options.c" 3 4
+# 650 "options.c" 3 4
(*__errno_location ())
-# 642 "options.c"
+# 650 "options.c"
));
return 1;
}
@@ -3356,36 +3384,36 @@
n_matches = 0;
for (n_haystack = 0; !((haystack + n_haystack)->short_opt == '\0' && (haystack + n_haystack)->long_opt ==
-# 674 "options.c" 3 4
+# 682 "options.c" 3 4
((void *)0)
-# 674 "options.c"
+# 682 "options.c"
); n_haystack++) {
if (haystack[n_haystack].long_opt)
n_matches++;
}
- matches = _xmalloc_line("options.c", 680, __func__, sizeof(*matches) * n_matches);
+ matches = _xmalloc_line("options.c", 688, __func__, sizeof(*matches) * n_matches);
index = 0;
for (int i = 0; i < n_haystack; i++) {
const char *str = haystack[i].long_opt;
if (str) {
-# 685 "options.c" 3 4
+# 693 "options.c" 3 4
((void) sizeof ((
-# 685 "options.c"
+# 693 "options.c"
index < n_matches
-# 685 "options.c" 3 4
+# 693 "options.c" 3 4
) ? 1 : 0), __extension__ ({ if (
-# 685 "options.c"
+# 693 "options.c"
index < n_matches
-# 685 "options.c" 3 4
+# 693 "options.c" 3 4
) ; else __assert_fail (
-# 685 "options.c"
+# 693 "options.c"
"index < n_matches"
-# 685 "options.c" 3 4
- , "options.c", 685, __extension__ __PRETTY_FUNCTION__); }))
-# 685 "options.c"
+# 693 "options.c" 3 4
+ , "options.c", 693, __extension__ __PRETTY_FUNCTION__); }))
+# 693 "options.c"
;
matches[index].match = str;
matches[index].index = i;
@@ -3393,21 +3421,21 @@
}
}
-# 691 "options.c" 3 4
+# 699 "options.c" 3 4
((void) sizeof ((
-# 691 "options.c"
+# 699 "options.c"
index == n_matches
-# 691 "options.c" 3 4
+# 699 "options.c" 3 4
) ? 1 : 0), __extension__ ({ if (
-# 691 "options.c"
+# 699 "options.c"
index == n_matches
-# 691 "options.c" 3 4
+# 699 "options.c" 3 4
) ; else __assert_fail (
-# 691 "options.c"
+# 699 "options.c"
"index == n_matches"
-# 691 "options.c" 3 4
- , "options.c", 691, __extension__ __PRETTY_FUNCTION__); }))
-# 691 "options.c"
+# 699 "options.c" 3 4
+ , "options.c", 699, __extension__ __PRETTY_FUNCTION__); }))
+# 699 "options.c"
;
@@ -3463,9 +3491,9 @@
break;
case OPT_STRING:
arg->arg_string =
-# 745 "options.c" 3 4
+# 753 "options.c" 3 4
((void *)0)
-# 745 "options.c"
+# 753 "options.c"
;
break;
@@ -3473,21 +3501,21 @@
if (arg->arg_file) {
if (file_close(arg->arg_file)) {
fprintf(
-# 751 "options.c" 3 4
+# 759 "options.c" 3 4
stderr
-# 751 "options.c"
+# 759 "options.c"
, "%s: cannot close %s: %s\n", prog_name,
opt->argstr ? *(opt->argstr) : "file", strerror(
-# 752 "options.c" 3 4
+# 760 "options.c" 3 4
(*__errno_location ())
-# 752 "options.c"
+# 760 "options.c"
));
return 1;
}
arg->arg_file =
-# 755 "options.c" 3 4
+# 763 "options.c" 3 4
((void *)0)
-# 755 "options.c"
+# 763 "options.c"
;
}
break;
@@ -3496,22 +3524,22 @@
if (arg->arg_directory) {
if (closedir(arg->arg_directory)) {
fprintf(
-# 762 "options.c" 3 4
+# 770 "options.c" 3 4
stderr
-# 762 "options.c"
+# 770 "options.c"
, "%s: cannot close directory%s%s: %s\n", prog_name,
opt->argstr ? " " : "", opt->argstr ? *(opt->argstr) : "",
strerror(
-# 764 "options.c" 3 4
+# 772 "options.c" 3 4
(*__errno_location ())
-# 764 "options.c"
+# 772 "options.c"
));
return 1;
}
arg->arg_directory =
-# 767 "options.c" 3 4
+# 775 "options.c" 3 4
((void *)0)
-# 767 "options.c"
+# 775 "options.c"
;
}
@@ -3519,29 +3547,29 @@
default:
-# 773 "options.c" 3 4
+# 781 "options.c" 3 4
((void) sizeof ((
-# 773 "options.c"
+# 781 "options.c"
!"Invalid option type"
-# 773 "options.c" 3 4
+# 781 "options.c" 3 4
) ? 1 : 0), __extension__ ({ if (
-# 773 "options.c"
+# 781 "options.c"
!"Invalid option type"
-# 773 "options.c" 3 4
+# 781 "options.c" 3 4
) ; else __assert_fail (
-# 773 "options.c"
+# 781 "options.c"
"!\"Invalid option type\""
-# 773 "options.c" 3 4
- , "options.c", 773, __extension__ __PRETTY_FUNCTION__); }))
-# 773 "options.c"
+# 781 "options.c" 3 4
+ , "options.c", 781, __extension__ __PRETTY_FUNCTION__); }))
+# 781 "options.c"
;
}
if (opt->argstr)
*(opt->argstr) =
-# 777 "options.c" 3 4
+# 785 "options.c" 3 4
((void *)0)
-# 777 "options.c"
+# 785 "options.c"
;
return 0;
@@ -3555,9 +3583,9 @@
int ret = 0;
for (const OPTION *opt = options; !((opt)->short_opt == '\0' && (opt)->long_opt ==
-# 789 "options.c" 3 4
+# 797 "options.c" 3 4
((void *)0)
-# 789 "options.c"
+# 797 "options.c"
); opt++)
ret += free_opt(prog_name, opt);
@@ -3571,9 +3599,9 @@
static int format_help_callback(void *data, char *err) {
struct help_callback_data *d = data;
int ret = format_help(
-# 801 "options.c" 3 4
+# 809 "options.c" 3 4
stdout
-# 801 "options.c"
+# 809 "options.c"
, d->prog_name, d->usage,
d->desc, d->notes, d->options);
@@ -3581,15 +3609,15 @@
fflush(
-# 807 "options.c" 3 4
+# 815 "options.c" 3 4
stdout
-# 807 "options.c"
+# 815 "options.c"
);
snprintf(err, 256, "cannot print help message: %s",
strerror(
-# 809 "options.c" 3 4
+# 817 "options.c" 3 4
(*__errno_location ())
-# 809 "options.c"
+# 817 "options.c"
));
return ret;
}
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