diff options
Diffstat (limited to 'sysdeps/generic')
| -rw-r--r-- | sysdeps/generic/dl-sysdep.c | 25 | ||||
| -rw-r--r-- | sysdeps/generic/glob.c | 4 | ||||
| -rw-r--r-- | sysdeps/generic/ldsodefs.h | 10 | ||||
| -rw-r--r-- | sysdeps/generic/nfs/nfs.h | 32 |
4 files changed, 60 insertions, 11 deletions
diff --git a/sysdeps/generic/dl-sysdep.c b/sysdeps/generic/dl-sysdep.c index 6ac0d95ea6..985e2b8f77 100644 --- a/sysdeps/generic/dl-sysdep.c +++ b/sysdeps/generic/dl-sysdep.c @@ -393,7 +393,7 @@ _dl_important_hwcaps (const char *platform, size_t platform_len, size_t *sz, cnt += *p++; ++p; /* Skip mask word. */ dsocaps = (const char *) p; - dsocapslen = note->datalen - sizeof *p; + dsocapslen = note->datalen - sizeof *p * 2; break; } note = ((const void *) (note + 1) @@ -431,14 +431,23 @@ _dl_important_hwcaps (const char *platform, size_t platform_len, size_t *sz, #if defined NEED_DL_SYSINFO || defined NEED_DL_SYSINFO_DSO if (dsocaps != NULL) { - GLRO(dl_hwcap) |= ((uint64_t) ((const ElfW(Word) *) dsocaps)[-1] - << _DL_FIRST_EXTRA); - for (const char *p = dsocaps; - p < dsocaps + dsocapslen; - p += temp[m++].len + 1) + const ElfW(Word) mask = ((const ElfW(Word) *) dsocaps)[-1]; + GLRO(dl_hwcap) |= (uint64_t) mask << _DL_FIRST_EXTRA; + size_t len; + for (const char *p = dsocaps; p < dsocaps + dsocapslen; p += len + 1) { - temp[m].str = p; - temp[m].len = strlen (p); + uint_fast8_t bit = *p++; + len = strlen (p); + + /* Skip entries that are not enabled in the mask word. */ + if (__builtin_expect (mask & ((ElfW(Word)) 1 << bit), 1)) + { + temp[m].str = p; + temp[m].len = len; + ++m; + } + else + --cnt; } } #endif diff --git a/sysdeps/generic/glob.c b/sysdeps/generic/glob.c index c0e76b377e..2e767304a7 100644 --- a/sysdeps/generic/glob.c +++ b/sysdeps/generic/glob.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1991-2002, 2003, 2004 Free Software Foundation, Inc. +/* Copyright (C) 1991-2002,2003,2004,2005 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -715,7 +715,7 @@ glob (pattern, flags, errfunc, pglob) buflen = 20; name = (char *) __alloca (buflen); - success = getlogin_r (name, buflen) >= 0; + success = getlogin_r (name, buflen) == 0; # else success = (name = getlogin ()) != NULL; # endif diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h index a24c2ff58e..191ae4d4fb 100644 --- a/sysdeps/generic/ldsodefs.h +++ b/sysdeps/generic/ldsodefs.h @@ -62,7 +62,7 @@ typedef struct link_map *lookup_t; # define LOOKUP_VALUE(map) map # define LOOKUP_VALUE_ADDRESS(map) ((map) ? (map)->l_addr : 0) -/* on some architectures a pointer to a function is not just a pointer +/* On some architectures a pointer to a function is not just a pointer to the actual code of the function but rather an architecture specific descriptor. */ #ifndef ELF_FUNCTION_PTR_IS_SPECIAL @@ -73,6 +73,14 @@ typedef struct link_map *lookup_t; # define DL_DT_FINI_ADDRESS(map, start) (start) #endif +/* On some architectures dladdr can't use st_size of all symbols this way. */ +#define DL_ADDR_SYM_MATCH(L, SYM, MATCHSYM, ADDR) \ + ((ADDR) >= (L)->l_addr + (SYM)->st_value \ + && (((SYM)->st_size == 0 \ + && (ADDR) == (L)->l_addr + (SYM)->st_value) \ + || (ADDR) < (L)->l_addr + (SYM)->st_value + (SYM)->st_size) \ + && ((MATCHSYM) == NULL || (MATCHSYM)->st_value < (SYM)->st_value)) + /* Unmap a loaded object, called by _dl_close (). */ #ifndef DL_UNMAP_IS_SPECIAL # define DL_UNMAP(map) \ diff --git a/sysdeps/generic/nfs/nfs.h b/sysdeps/generic/nfs/nfs.h new file mode 100644 index 0000000000..e83a874fe6 --- /dev/null +++ b/sysdeps/generic/nfs/nfs.h @@ -0,0 +1,32 @@ +/* <nfs/nfs.h> -- ill-specified NFS-related definitions + Copyright (C) 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _NFS_NFS_H +#define _NFS_NFS_H 1 + +/* This file is empty for now. Its contents do not seem to be + standardized in any way. It exists solely for the sake of + <rpcsvc/bootparam_prot.h> which insists on including <nfs/nfs.h>. + + For the time being, we just provide this file here to smooth building + the libc distribution (i.e. librpcsvc). We do not install this file for + users, since we haven't really figured out what the right thing to go + here is. */ + +#endif /* nfs/nfs.h */ |