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0200214b28
* limits.h: Change MB_LEN_MAX to 6. A 31-bit ISO 10646
character in UTF-8 encoding has that many bytes.
* locale/langinfo.h: New element _NL_CTYPE_MB_CUR_MAX.
* locale/categories.def: Add description of field _NL_CTYPE_MB_CUR_MAX.
* locale/Makefile (routines): Add mb_cur_max.
* locale/mb_cur_max.c: New file. This function gets called
when the macro MB_CUR_MAX is used.
* locale/C-ctype.c: Initialize new mb_cur_max field.
* locale/localeinfo.h: Change magic value because of incompatible
change.
* locale/programs/ld-ctype.c: Determine value of mb_cur_max
according to current character set and write it out with the rest.
* stdlib/stdlib.h (MB_CUR_MAX): Not constant anymore. Get value
according to currently used locale for catefory LC_CTYPE by
calling the function __ctype_get_mb_cur_max.
Tue May 28 03:27:46 1996 Ulrich Drepper <drepper@cygnus.com>
* FAQ: Fix some typos.
Tell that for Linux the kernel header files are necessary.
* PROJECTS: New file. List of open jobs for glibc.
* Makefile (distribute): Add PROJECTS.
* crypt/GNUmakefile (headers): New variable. Mention crypt.h.
* crypt/crypt.h: Header for crypt functions.
* elf/elf.h: Add some new constants from recent Cygnus ELF
header files.
* login/getutid_r.c: Test for correct type.
Don't depend on ut_type and ut_id unless _HAVE_UT_TYPE and
_HAVE_UT_ID resp. are defined.
Make really compliant with specification.
* login/getutline_r.c, login/pututline_r.c: Don't depend on
ut_type and ut_id unless _HAVE_UT_TYPE and _HAVE_UT_ID resp. are
defined.
Make really compliant with specification.
* login/setutent_r.c: Don't depend on ut_type and ut_id unless
_HAVE_UT_TYPE and _HAVE_UT_ID resp. are defined.
* login/login.c, login/logout.c, login/logwtmp.c: Complete
rewrite. Now based on getut*/setut* functions.
* stdlib/strtol.c: Undo changes of Wed May 22 01:48:54 1996.
This prevented using this file in other GNU packages.
* sysdeps/gnu/utmpbits.h: Define _HAVE_UT_TYPE, _HAVE_UT_ID,
and _HAVE_UT_TV because struct utmp has these members.
* sysdeps/libm-i387/e_exp.S: Correct exp(+-Inf) case.
* utmp.h: New file. Wrapper around login/utmp.h.
* elf/dl-error.c (struct catch): New type.
(catch): New static variable, struct catch *.
(catch_env, signalled_errstring, signalled_objname): Variables removed.
(_dl_signal_error): If CATCH is non-null, set its errstring and
objname members and jump to CATCH->env. If it is null, call
_dl_sysdep_fatal with a standard message.
* elf/rtld.c (dl_main): Explode `doit' function into dl_main's body.
No longer use _dl_catch_error.
89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
/* Error handling for runtime dynamic linker.
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Copyright (C) 1995, 1996 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <stddef.h>
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#include <link.h>
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#include <setjmp.h>
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#include <string.h>
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/* This structure communicates state between _dl_catch_error and
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_dl_signal_error. */
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struct catch
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{
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const char *errstring, *objname; /* Error detail filled in here. */
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jmp_buf env; /* longjmp here on error. */
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};
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/* This points to such a structure during a call to _dl_catch_error.
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During implicit startup and run-time work for needed shared libraries,
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this is null. */
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static struct catch *catch;
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void
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_dl_signal_error (int errcode,
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const char *objname,
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const char *errstring)
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{
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if (! errstring)
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errstring = "DYNAMIC LINKER BUG!!!";
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if (catch)
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{
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/* We are inside _dl_catch_error. Return to it. */
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catch->errstring = errstring;
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catch->objname = objname;
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longjmp (catch->env, errcode ?: -1);
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}
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else
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{
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/* Lossage while resolving the program's own symbols is always fatal. */
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extern char **_dl_argv; /* Set in rtld.c at startup. */
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_dl_sysdep_fatal (_dl_argv[0] ?: "<program name unknown>",
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": error in loading shared libraries\n",
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objname ?: "", objname ? ": " : "",
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errstring, errcode ? ": " : "",
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errcode ? strerror (errcode) : "", "\n", NULL);
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}
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}
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int
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_dl_catch_error (const char **errstring,
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const char **objname,
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void (*operate) (void))
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{
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int errcode;
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struct catch c = { errstring: NULL, objname: NULL };
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errcode = setjmp (c.env);
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if (errcode == 0)
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{
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catch = &c;
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(*operate) ();
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catch = NULL;
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*errstring = *objname = NULL;
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return 0;
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}
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/* We get here only if we longjmp'd out of OPERATE. */
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*errstring = c.errstring;
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*objname = c.objname;
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return errcode == -1 ? 0 : errcode;
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}
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