diff options
| -rw-r--r-- | ChangeLog | 14 | ||||
| -rw-r--r-- | elf/dl-load.c | 131 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/init-first.c | 6 | ||||
| -rw-r--r-- | time/strftime.c | 56 |
4 files changed, 113 insertions, 94 deletions
@@ -1,5 +1,19 @@ 1998-09-11 Ulrich Drepper <drepper@cygnus.com> + * time/strftime.c (my_strftime): Delay use of *tp values until + latest possible point to allow partly initialized structures + (e.g., from strptime). + + * sysdeps/unix/sysv/linux/init-first.c [!PIC]: Define __libc_init_first + using init-first.h. + +1998-04-30 18:20 H.J. Lu <hjl@gnu.org> + + * elf/dl-load.c (_dl_init_paths): Don't check the dynamic + loader if PIC is not defined. + +1998-09-11 Ulrich Drepper <drepper@cygnus.com> + * iconvdata/Makefile (modules): Add CSN_369103, CWI, DEC-MCS, ECMA-CYRILLIC, GOST_19768-74, GREEK-CCITT, GREEK7, GREEK7-OLD, INIS, INIS-8, INIS-CYRILLIC, ISO_6937-2, ISO_2033, ISO_5427, ISO_5427-EXT, diff --git a/elf/dl-load.c b/elf/dl-load.c index 1082205..ba01300 100644 --- a/elf/dl-load.c +++ b/elf/dl-load.c @@ -458,11 +458,13 @@ _dl_init_paths (const char *llp) struct r_search_path_elem *pelem, **aelem; size_t round_size; +#ifdef PIC /* We have in `search_path' the information about the RPATH of the dynamic loader. Now fill in the information about the applications RPATH and the directories addressed by the LD_LIBRARY_PATH environment variable. */ struct link_map *l; +#endif /* Number of elements in the library path. */ size_t nllp; @@ -526,84 +528,83 @@ _dl_init_paths (const char *llp) } *aelem = NULL; +#ifdef PIC + /* This points to the map of the main object. */ l = _dl_loaded; - if (l != NULL) - { - /* We should never get here when initializing in a static application. - If this is a dynamically linked application _dl_loaded always - points to the main map which is not dlopen()ed. */ - assert (l->l_type != lt_loaded); - - if (l->l_info[DT_RPATH]) - { - /* Allocate room for the search path and fill in information - from RPATH. */ - l->l_rpath_dirs = - decompose_rpath ((const char *) - (l->l_addr + l->l_info[DT_STRTAB]->d_un.d_ptr - + l->l_info[DT_RPATH]->d_un.d_val), - nllp, l); - } - else - { - /* If we have no LD_LIBRARY_PATH and no RPATH we must tell - this somehow to prevent we look this up again and again. */ - if (nllp == 0) - l->l_rpath_dirs = (struct r_search_path_elem **) -1l; - else - { - l->l_rpath_dirs = (struct r_search_path_elem **) - malloc ((nllp + 1) * sizeof (*l->l_rpath_dirs)); - if (l->l_rpath_dirs == NULL) - _dl_signal_error (ENOMEM, NULL, - "cannot create cache for search path"); - l->l_rpath_dirs[0] = NULL; - } - } - /* We don't need to search the list of fake entries which is searched - when no dynamic objects were loaded at this time. */ - fake_path_list = NULL; + /* We should never get here when initializing in a static application. + If this is a dynamically linked application _dl_loaded always + points to the main map which is not dlopen()ed. */ + assert (l->l_type != lt_loaded); - if (nllp > 0) - { - char *copy = local_strdup (llp); - - /* Decompose the LD_LIBRARY_PATH and fill in the result. - First search for the next place to enter elements. */ - struct r_search_path_elem **result = l->l_rpath_dirs; - while (*result != NULL) - ++result; - - /* We need to take care that the LD_LIBRARY_PATH environment - variable can contain a semicolon. */ - (void) fillin_rpath (copy, result, ":;", - __libc_enable_secure ? system_dirs : NULL, - "LD_LIBRARY_PATH", NULL); - } + if (l->l_info[DT_RPATH]) + { + /* Allocate room for the search path and fill in information + from RPATH. */ + l->l_rpath_dirs = + decompose_rpath ((const char *) + (l->l_addr + l->l_info[DT_STRTAB]->d_un.d_ptr + + l->l_info[DT_RPATH]->d_un.d_val), + nllp, l); } else { - /* This is a statically linked program but we still have to - take care for the LD_LIBRARY_PATH environment variable. We - use a fake link_map entry. This will only contain the - l_rpath_dirs information. */ - + /* If we have no LD_LIBRARY_PATH and no RPATH we must tell + this somehow to prevent we look this up again and again. */ if (nllp == 0) - fake_path_list = NULL; + l->l_rpath_dirs = (struct r_search_path_elem **) -1l; else { - fake_path_list = (struct r_search_path_elem **) - malloc ((nllp + 1) * sizeof (struct r_search_path_elem *)); - if (fake_path_list == NULL) + l->l_rpath_dirs = (struct r_search_path_elem **) + malloc ((nllp + 1) * sizeof (*l->l_rpath_dirs)); + if (l->l_rpath_dirs == NULL) _dl_signal_error (ENOMEM, NULL, "cannot create cache for search path"); - - (void) fillin_rpath (local_strdup (llp), fake_path_list, ":;", - __libc_enable_secure ? system_dirs : NULL, - "LD_LIBRARY_PATH", NULL); + l->l_rpath_dirs[0] = NULL; } } + + /* We don't need to search the list of fake entries which is searched + when no dynamic objects were loaded at this time. */ + fake_path_list = NULL; + + if (nllp > 0) + { + char *copy = local_strdup (llp); + + /* Decompose the LD_LIBRARY_PATH and fill in the result. + First search for the next place to enter elements. */ + struct r_search_path_elem **result = l->l_rpath_dirs; + while (*result != NULL) + ++result; + + /* We need to take care that the LD_LIBRARY_PATH environment + variable can contain a semicolon. */ + (void) fillin_rpath (copy, result, ":;", + __libc_enable_secure ? system_dirs : NULL, + "LD_LIBRARY_PATH", NULL); + } +#else /* !PIC */ + /* This is a statically linked program but we still have to take + care for the LD_LIBRARY_PATH environment variable. We use a fake + link_map entry. This will only contain the l_rpath_dirs + information. */ + + if (nllp == 0) + fake_path_list = NULL; + else + { + fake_path_list = (struct r_search_path_elem **) + malloc ((nllp + 1) * sizeof (struct r_search_path_elem *)); + if (fake_path_list == NULL) + _dl_signal_error (ENOMEM, NULL, + "cannot create cache for search path"); + + (void) fillin_rpath (local_strdup (llp), fake_path_list, ":;", + __libc_enable_secure ? system_dirs : NULL, + "LD_LIBRARY_PATH", NULL); + } +#endif /* PIC */ } diff --git a/sysdeps/unix/sysv/linux/init-first.c b/sysdeps/unix/sysv/linux/init-first.c index 0931e99..6c293e3 100644 --- a/sysdeps/unix/sysv/linux/init-first.c +++ b/sysdeps/unix/sysv/linux/init-first.c @@ -93,11 +93,7 @@ __libc_init_first (void) } #else -void -__libc_init_first (int argc, char **argv, char **envp) -{ - init (argc, argv, envp); -} +SYSDEP_CALL_INIT(__libc_init_first, init); #endif diff --git a/time/strftime.c b/time/strftime.c index f724bf3..594cbbf 100644 --- a/time/strftime.c +++ b/time/strftime.c @@ -416,15 +416,25 @@ my_strftime (s, maxsize, format, tp) { int hour12 = tp->tm_hour; #ifdef _NL_CURRENT - const char *const a_wkday = _NL_CURRENT (LC_TIME, ABDAY_1 + tp->tm_wday); - const char *const f_wkday = _NL_CURRENT (LC_TIME, DAY_1 + tp->tm_wday); - const char *const a_month = _NL_CURRENT (LC_TIME, ABMON_1 + tp->tm_mon); - const char *const f_month = _NL_CURRENT (LC_TIME, MON_1 + tp->tm_mon); - const char *const ampm = _NL_CURRENT (LC_TIME, - hour12 > 11 ? PM_STR : AM_STR); - size_t aw_len = strlen (a_wkday); - size_t am_len = strlen (a_month); - size_t ap_len = strlen (ampm); + /* We cannot make the following values variables since we must dealy + the evaluation of these values until really needed since some + expressions might not be valid in every situation. The `struct tm' + might be generated by a strptime() call and therefore initialized + only a few elements. Dereference the pointers only if the format + requires this. Then it is ok to fail if the pointers are invalid. */ +# define a_wkday _NL_CURRENT (LC_TIME, ABDAY_1 + tp->tm_wday) +# define f_wkday _NL_CURRENT (LC_TIME, DAY_1 + tp->tm_wday) +# define f_wkday _NL_CURRENT (LC_TIME, DAY_1 + tp->tm_wday) +# define a_month _NL_CURRENT (LC_TIME, ABMON_1 + tp->tm_mon) +# define f_month _NL_CURRENT (LC_TIME, MON_1 + tp->tm_mon) +# define ampm _NL_CURRENT (LC_TIME, hour12 > 11 ? PM_STR : AM_STR) + +# define aw_len strlen (a_wkday) +# define am_len strlen (a_month) +# define ap_len strlen (ampm) + +# define wkday_len strlen (f_wkday) +# define month_len strlen (f_month) #else # if !HAVE_STRFTIME const char *const f_wkday = weekday_name[tp->tm_wday]; @@ -435,14 +445,12 @@ my_strftime (s, maxsize, format, tp) size_t aw_len = 3; size_t am_len = 3; size_t ap_len = 2; -# endif -#endif -#if defined _NL_CURRENT || !HAVE_STRFTIME + size_t wkday_len = strlen (f_wkday); size_t month_len = strlen (f_month); +# endif #endif const char *zone; - size_t zonelen; size_t i = 0; char *p = s; const char *f; @@ -457,21 +465,12 @@ my_strftime (s, maxsize, format, tp) POSIX does not require it. Do the right thing instead. */ zone = (const char *) tp->tm_zone; #endif -#if HAVE_TZNAME +#if HAVE_TZNAME && HAVE_TZSET /* POSIX.1 8.1.1 requires that whenever strftime() is called, the time zone names contained in the external variable `tzname' shall be set as if the tzset() function had been called. */ -# if HAVE_TZSET tzset (); -# endif - - if (!(zone && *zone) && tp->tm_isdst >= 0) - zone = tzname[tp->tm_isdst]; #endif - if (! zone) - zone = ""; /* POSIX.2 requires the empty string here. */ - - zonelen = strlen (zone); if (hour12 > 12) hour12 -= 12; @@ -1146,7 +1145,16 @@ my_strftime (s, maxsize, format, tp) to_uppcase = 0; to_lowcase = 1; } - cpy (zonelen, zone); + +#if HAVE_TZNAME + /* The tzset() call might have changed the value. */ + if (!(zone && *zone) && tp->tm_isdst >= 0) + zone = tzname[tp->tm_isdst]; +#endif + if (! zone) + zone = ""; /* POSIX.2 requires the empty string here. */ + + cpy (strlen (zone), zone); break; case 'z': /* GNU extension. */ |