diff options
Diffstat (limited to 'sysdeps/ia64')
| -rw-r--r-- | sysdeps/ia64/dl-machine.h | 41 | ||||
| -rw-r--r-- | sysdeps/ia64/dl-tls.h | 4 | ||||
| -rw-r--r-- | sysdeps/ia64/libc-tls.c | 37 |
3 files changed, 74 insertions, 8 deletions
diff --git a/sysdeps/ia64/dl-machine.h b/sysdeps/ia64/dl-machine.h index 16a1ff3000..f5eeef67db 100644 --- a/sysdeps/ia64/dl-machine.h +++ b/sysdeps/ia64/dl-machine.h @@ -1,5 +1,5 @@ /* Machine-dependent ELF dynamic relocation inline functions. IA-64 version. - Copyright (C) 1995,1996,1997,2000,2001,2002 Free Software Foundation, Inc. + Copyright (C) 1995-1997, 2000-2002, 2003 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 @@ -26,7 +26,7 @@ #include <string.h> #include <link.h> #include <errno.h> - +#include <tls.h> /* Translate a processor specific dynamic tag to the index in l_info array. */ @@ -448,14 +448,22 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile) #define RTLD_START_SPECIAL_INIT /* nothing */ #endif -/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry, so - PLT entries should not be allowed to define the value. +/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry or TLS + variable, so undefined references should not be allowed to define the + value. ELF_RTYPE_CLASS_NOCOPY iff TYPE should not be allowed to resolve to one of the main executable's symbols, as for a COPY reloc, which we don't use. */ -/* ??? Ignore IPLTMSB for now. */ +/* ??? Ignore *MSB for now. */ +#if defined USE_TLS && (!defined RTLD_BOOTSTRAP || USE___THREAD) +#define elf_machine_type_class(type) \ + (((type) == R_IA64_IPLTLSB || (type) == R_IA64_DTPMOD64LSB \ + || (type) == R_IA64_DTPREL64LSB || (type) == R_IA64_TPREL64LSB) \ + * ELF_RTYPE_CLASS_PLT) +#else #define elf_machine_type_class(type) \ (((type) == R_IA64_IPLTLSB) * ELF_RTYPE_CLASS_PLT) +#endif /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */ #define ELF_MACHINE_JMP_SLOT R_IA64_IPLTLSB @@ -557,8 +565,7 @@ elf_machine_rela (struct link_map *map, /* RESOLVE_MAP() will return NULL if it fail to locate the symbol. */ if ((sym_map = RESOLVE_MAP (&sym, version, r_type))) { - value = sym ? sym_map->l_addr + sym->st_value : 0; - value += reloc->r_addend; + value = sym_map->l_addr + sym->st_value + reloc->r_addend; if (R_IA64_TYPE (r_type) == R_IA64_TYPE (R_IA64_DIR64LSB)) ;/* No adjustment. */ @@ -571,6 +578,26 @@ elf_machine_rela (struct link_map *map, value = __ia64_make_fptr (sym_map, sym, value); else if (R_IA64_TYPE (r_type) == R_IA64_TYPE (R_IA64_PCREL64LSB)) value -= (Elf64_Addr) reloc_addr & -16; +#if defined USE_TLS && (!defined RTLD_BOOTSTRAP || defined USE___THREAD) + else if (R_IA64_TYPE (r_type) == R_IA64_TYPE (R_IA64_DTPMOD64LSB)) +# ifdef RTLD_BOOTSTRAP + /* During startup the dynamic linker is always index 1. */ + value = 1; +# else + /* Get the information from the link map returned by the + resolv function. */ + value = sym_map->l_tls_modid; + else if (R_IA64_TYPE (r_type) == R_IA64_TYPE (R_IA64_DTPREL64LSB)) + value -= sym_map->l_addr; +# endif + else if (R_IA64_TYPE (r_type) == R_IA64_TYPE (R_IA64_TPREL64LSB)) + { +# ifndef RTLD_BOOTSTRAP + CHECK_STATIC_TLS (map, sym_map); +# endif + value += sym_map->l_tls_offset - sym_map->l_addr; + } +#endif else assert (! "unexpected dynamic reloc type"); } diff --git a/sysdeps/ia64/dl-tls.h b/sysdeps/ia64/dl-tls.h index 738c820a44..26f3d2adf1 100644 --- a/sysdeps/ia64/dl-tls.h +++ b/sysdeps/ia64/dl-tls.h @@ -1,5 +1,5 @@ /* Thread-local storage handling in the ELF dynamic linker. IA-64 version. - Copyright (C) 2002 Free Software Foundation, Inc. + Copyright (C) 2002, 2003 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 @@ -26,3 +26,5 @@ /* We have no tls_index type. */ #define DONT_USE_TLS_INDEX 1 + +extern void *__tls_get_addr (size_t m, size_t offset); diff --git a/sysdeps/ia64/libc-tls.c b/sysdeps/ia64/libc-tls.c new file mode 100644 index 0000000000..f1df4cd12e --- /dev/null +++ b/sysdeps/ia64/libc-tls.c @@ -0,0 +1,37 @@ +/* Thread-local storage handling in the ELF dynamic linker. IA-64 version. + Copyright (C) 2003 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. */ + +#include <sysdeps/generic/libc-tls.c> + +#if USE_TLS + +/* On IA-64, as it lacks linker optimizations, __tls_get_addr can be + called even in statically linked binaries. + In this case module must be always 1 and PT_TLS segment + exist in the binary, otherwise it would not link. */ + +void * +__tls_get_addr (size_t m, size_t offset) +{ + dtv_t *dtv = THREAD_DTV (); + return (char *) dtv[1].pointer + offset; +} + +#endif + |