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binutils-gdb/binutils/config.in
Richard W.M. Jones 3f8f9745c7 PR 31283 windmc: Parse input correctly on big endian hosts 
On big endian hosts (eg. s390x) the windmc tool fails to parse even
trivial files:

  $ cat test.mc
  ;
  $ ./binutils/windmc ./test.mc
  In test.mc at line 1: parser: syntax error.
  In test.mc at line 1: fatal: syntax error.

The tool starts by reading the input as Windows CP1252 and then
converting it internally into an array of UTF-16LE, which it then
processes as an array of unsigned short (typedef unichar).

There are lots of ways this is wrong, but in the specific case of big
endian machines the little endian pairs of bytes are byte-swapped.

For example, the ';' character in the input above is first converted
to UTF16-LE byte sequence { 0x3b, 0x00 }, which is then cast to
unsigned short.  On a big endian machine the first unichar appears to
be 0x3b00.  The lexer is unable to recognize this as the comment
character ((unichar)';') and so parsing fails.

The simple fix is to convert the input to UTF-16BE on big endian
machines (and do the reverse conversion when writing the output).

Fixes: https://sourceware.org/bugzilla/show_bug.cgi?id=31283
Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
2024-02-08 12:14:40 +10:30

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/* config.in. Generated from configure.ac by autoheader. */
/* Check that config.h is #included before system headers
(this works only for glibc, but that should be enough). */
#if defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__CONFIG_H__)
# error config.h must be #included before system headers
#endif
#define __CONFIG_H__ 1
/* Define if building universal (internal helper macro) */
#undef AC_APPLE_UNIVERSAL_BUILD
/* Should ar and ranlib use -D behavior by default? */
#undef DEFAULT_AR_DETERMINISTIC
/* Have objdump use colors in its disassembly by default */
#undef DEFAULT_FOR_COLORED_DISASSEMBLY
/* Have readelf and objdump follow debug links by default */
#undef DEFAULT_FOR_FOLLOW_LINKS
/* Have nm use F and f for global and local ifunc symbols */
#undef DEFAULT_F_FOR_IFUNC_SYMBOLS
/* Should strings use -a behavior by default? */
#undef DEFAULT_STRINGS_ALL
/* Define if you want run-time sanity checks. */
#undef ENABLE_CHECKING
/* Handle .ctf type-info sections */
#undef ENABLE_LIBCTF
/* Define to 1 if translation of program messages to the user's native
language is requested. */
#undef ENABLE_NLS
/* Suffix used for executables, if any. */
#undef EXECUTABLE_SUFFIX
/* Define to 1 if you have the Mac OS X function
CFLocaleCopyPreferredLanguages in the CoreFoundation framework. */
#undef HAVE_CFLOCALECOPYPREFERREDLANGUAGES
/* Define to 1 if you have the Mac OS X function CFPreferencesCopyAppValue in
the CoreFoundation framework. */
#undef HAVE_CFPREFERENCESCOPYAPPVALUE
/* Define if the GNU dcgettext() function is already present or preinstalled.
*/
#undef HAVE_DCGETTEXT
/* Define to 1 if you have the declaration of `asprintf', and to 0 if you
don't. */
#undef HAVE_DECL_ASPRINTF
/* Define to 1 if you have the declaration of `environ', and to 0 if you
don't. */
#undef HAVE_DECL_ENVIRON
/* Define to 1 if you have the declaration of `getc_unlocked', and to 0 if you
don't. */
#undef HAVE_DECL_GETC_UNLOCKED
/* Is the prototype for getopt in <unistd.h> in the expected format? */
#undef HAVE_DECL_GETOPT
/* Define to 1 if you have the declaration of `stpcpy', and to 0 if you don't.
*/
#undef HAVE_DECL_STPCPY
/* Define to 1 if you have the declaration of `strnlen', and to 0 if you
don't. */
#undef HAVE_DECL_STRNLEN
/* Define to 1 if you have the <dlfcn.h> header file. */
#undef HAVE_DLFCN_H
/* Does the platform use an executable suffix? */
#undef HAVE_EXECUTABLE_SUFFIX
/* Define to 1 if you have the <fcntl.h> header file. */
#undef HAVE_FCNTL_H
/* Define to 1 if you have the `fseeko' function. */
#undef HAVE_FSEEKO
/* Define to 1 if you have the `fseeko64' function. */
#undef HAVE_FSEEKO64
/* Define to 1 if you have the `getc_unlocked' function. */
#undef HAVE_GETC_UNLOCKED
/* Define to 1 if you have the `getpagesize' function. */
#undef HAVE_GETPAGESIZE
/* Define if the GNU gettext() function is already present or preinstalled. */
#undef HAVE_GETTEXT
/* Does <utime.h> define struct utimbuf? */
#undef HAVE_GOOD_UTIME_H
/* Define if you have the iconv() function and it works. */
#undef HAVE_ICONV
/* Define to 1 if you have the <inttypes.h> header file. */
#undef HAVE_INTTYPES_H
/* Define if your <locale.h> file defines LC_MESSAGES. */
#undef HAVE_LC_MESSAGES
/* Define to 1 if debuginfod is enabled. */
#undef HAVE_LIBDEBUGINFOD
/* Define to 1 if debuginfod section downloading is supported. */
#undef HAVE_LIBDEBUGINFOD_FIND_SECTION
/* Define if mbstate_t exists in wchar.h. */
#undef HAVE_MBSTATE_T
/* Define to 1 if you have the <memory.h> header file. */
#undef HAVE_MEMORY_H
/* Define to 1 if you have the `mkdtemp' function. */
#undef HAVE_MKDTEMP
/* Define to 1 if you have the `mkstemp' function. */
#undef HAVE_MKSTEMP
/* Define to 1 if you have a working `mmap' system call. */
#undef HAVE_MMAP
/* Define to 1 if msgpack is available. */
#undef HAVE_MSGPACK
/* Define to 1 if you have the <stdint.h> header file. */
#undef HAVE_STDINT_H
/* Define to 1 if you have the <stdlib.h> header file. */
#undef HAVE_STDLIB_H
/* Define to 1 if you have the <strings.h> header file. */
#undef HAVE_STRINGS_H
/* Define to 1 if you have the <string.h> header file. */
#undef HAVE_STRING_H
/* Define to 1 if `st_atimensec' is a member of `struct stat'. */
#undef HAVE_STRUCT_STAT_ST_ATIMENSEC
/* Define to 1 if `st_atimespec.tv_nsec' is a member of `struct stat'. */
#undef HAVE_STRUCT_STAT_ST_ATIMESPEC_TV_NSEC
/* Define to 1 if `st_atim.st__tim.tv_nsec' is a member of `struct stat'. */
#undef HAVE_STRUCT_STAT_ST_ATIM_ST__TIM_TV_NSEC
/* Define to 1 if `st_atim.tv_nsec' is a member of `struct stat'. */
#undef HAVE_STRUCT_STAT_ST_ATIM_TV_NSEC
/* Define to 1 if you have the <sys/file.h> header file. */
#undef HAVE_SYS_FILE_H
/* Define to 1 if you have the <sys/param.h> header file. */
#undef HAVE_SYS_PARAM_H
/* Define to 1 if you have the <sys/stat.h> header file. */
#undef HAVE_SYS_STAT_H
/* Define to 1 if you have the <sys/time.h> header file. */
#undef HAVE_SYS_TIME_H
/* Define to 1 if you have the <sys/types.h> header file. */
#undef HAVE_SYS_TYPES_H
/* Define to 1 if you have <sys/wait.h> that is POSIX.1 compatible. */
#undef HAVE_SYS_WAIT_H
/* Define to 1 if you have the <unistd.h> header file. */
#undef HAVE_UNISTD_H
/* Define to 1 if you have the `utimensat' function. */
#undef HAVE_UTIMENSAT
/* Define to 1 if you have the `utimes' function. */
#undef HAVE_UTIMES
/* Define to 1 if you have the <windows.h> header file. */
#undef HAVE_WINDOWS_H
/* Define to 1 if zstd is enabled. */
#undef HAVE_ZSTD
/* Define as const if the declaration of iconv() needs const. */
#undef ICONV_CONST
/* Define to the sub-directory in which libtool stores uninstalled libraries.
*/
#undef LT_OBJDIR
/* Name of package */
#undef PACKAGE
/* Define to the address where bug reports for this package should be sent. */
#undef PACKAGE_BUGREPORT
/* Define to the full name of this package. */
#undef PACKAGE_NAME
/* Define to the full name and version of this package. */
#undef PACKAGE_STRING
/* Define to the one symbol short name of this package. */
#undef PACKAGE_TARNAME
/* Define to the home page for this package. */
#undef PACKAGE_URL
/* Define to the version of this package. */
#undef PACKAGE_VERSION
/* Define to 1 if you have the ANSI C header files. */
#undef STDC_HEADERS
/* Configured target name. */
#undef TARGET
/* Define to 1 if user symbol names have a leading underscore, 0 if not. */
#undef TARGET_PREPENDS_UNDERSCORE
/* Define to 1 if the type of the st_atim member of a struct stat is struct
timespec. */
#undef TYPEOF_STRUCT_STAT_ST_ATIM_IS_STRUCT_TIMESPEC
/* Use b modifier when opening binary files? */
#undef USE_BINARY_FOPEN
/* Enable extensions on AIX 3, Interix. */
#ifndef _ALL_SOURCE
# undef _ALL_SOURCE
#endif
/* Enable GNU extensions on systems that have them. */
#ifndef _GNU_SOURCE
# undef _GNU_SOURCE
#endif
/* Enable threading extensions on Solaris. */
#ifndef _POSIX_PTHREAD_SEMANTICS
# undef _POSIX_PTHREAD_SEMANTICS
#endif
/* Enable extensions on HP NonStop. */
#ifndef _TANDEM_SOURCE
# undef _TANDEM_SOURCE
#endif
/* Enable general extensions on Solaris. */
#ifndef __EXTENSIONS__
# undef __EXTENSIONS__
#endif
/* Version number of package */
#undef VERSION
/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
significant byte first (like Motorola and SPARC, unlike Intel). */
#if defined AC_APPLE_UNIVERSAL_BUILD
# if defined __BIG_ENDIAN__
# define WORDS_BIGENDIAN 1
# endif
#else
# ifndef WORDS_BIGENDIAN
# undef WORDS_BIGENDIAN
# endif
#endif
/* Define to 1 if `lex' declares `yytext' as a `char *' by default, not a
`char[]'. */
#undef YYTEXT_POINTER
/* Enable large inode numbers on Mac OS X 10.5. */
#ifndef _DARWIN_USE_64_BIT_INODE
# define _DARWIN_USE_64_BIT_INODE 1
#endif
/* Number of bits in a file offset, on hosts where this is settable. */
#undef _FILE_OFFSET_BITS
/* Define for large files, on AIX-style hosts. */
#undef _LARGE_FILES
/* Define to 1 if on MINIX. */
#undef _MINIX
/* Define to 2 if the system does not provide POSIX.1 features except with
this defined. */
#undef _POSIX_1_SOURCE
/* Define to 1 if you need to in order for `stat' and other things to work. */
#undef _POSIX_SOURCE
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