From c68d0fa2d88fc2134a38d99e7e944828384a7671 Mon Sep 17 00:00:00 2001 From: Austin Foxley Date: Sat, 17 Oct 2009 12:26:24 -0700 Subject: libpthread/nptl: core of the "Native Posix Threading Library" for uClibc targetting arm,sh,i386,mips,sparc for now Signed-off-by: Austin Foxley --- libpthread/nptl/sysdeps/powerpc/dl-tls.h | 49 ++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 libpthread/nptl/sysdeps/powerpc/dl-tls.h (limited to 'libpthread/nptl/sysdeps/powerpc/dl-tls.h') diff --git a/libpthread/nptl/sysdeps/powerpc/dl-tls.h b/libpthread/nptl/sysdeps/powerpc/dl-tls.h new file mode 100644 index 000000000..957d4b4b9 --- /dev/null +++ b/libpthread/nptl/sysdeps/powerpc/dl-tls.h @@ -0,0 +1,49 @@ +/* Thread-local storage handling in the ELF dynamic linker. PowerPC 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. */ + + +/* Type used for the representation of TLS information in the TOC. */ +typedef struct +{ + unsigned long int ti_module; + unsigned long int ti_offset; +} tls_index; + +/* The thread pointer points 0x7000 past the first static TLS block. */ +#define TLS_TP_OFFSET 0x7000 + +/* Dynamic thread vector pointers point 0x8000 past the start of each + TLS block. */ +#define TLS_DTV_OFFSET 0x8000 + +/* Compute the value for a @tprel reloc. */ +#define TLS_TPREL_VALUE(sym_map, sym, reloc) \ + ((sym_map)->l_tls_offset + (sym)->st_value + (reloc)->r_addend \ + - TLS_TP_OFFSET) + +/* Compute the value for a @dtprel reloc. */ +#define TLS_DTPREL_VALUE(sym, reloc) \ + ((sym)->st_value + (reloc)->r_addend - TLS_DTV_OFFSET) + +#ifdef SHARED +extern void *__tls_get_addr (tls_index *ti); + +# define GET_ADDR_OFFSET (ti->ti_offset + TLS_DTV_OFFSET) +# define __TLS_GET_ADDR(__ti) (__tls_get_addr (__ti) - TLS_DTV_OFFSET) +#endif -- cgit v1.2.3