From acf6404e0b76930e6f3c371149c09dd5aa9a6dcc Mon Sep 17 00:00:00 2001 From: Ken Raeburn Date: Thu, 13 Jan 1994 21:31:50 +0000 Subject: [PATCH] (add_to_literal_pool): Take symbol and addend as arguments, instead of expression, for now. Fix calculation of offset to return. --- gas/literal.c | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 gas/literal.c diff --git a/gas/literal.c b/gas/literal.c new file mode 100644 index 00000000000..5ae2ff29c9c --- /dev/null +++ b/gas/literal.c @@ -0,0 +1,78 @@ +/* as.c - GAS literal pool management. + Copyright (C) 1994 Free Software Foundation, Inc. + + This file is part of GAS, the GNU Assembler. + + GAS is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + GAS 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with GAS; see the file COPYING. If not, write to + the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + +/* This isn't quite a "constant" pool. Some of the values may get + adjusted at run time, e.g., for symbolic relocations when shared + libraries are in use. It's more of a "literal" pool. + + On the Alpha, this should be used for .lita and .lit8. (Is there + ever a .lit4?) On the MIPS, it could be used for .lit4 as well. + + The expressions passed here should contain either constants or symbols, + *not* a combination of both. Typically, the constant pool is accessed + with some sort of GP register, so the size of the pool must be kept down + if possible. The exception is section offsets -- if you're storing a + pointer to the start of .data, for example, and your machine provides + for 16-bit signed addends, you might want to store .data+32K, so that + you can access all of the first 64K of .data with the one pointer... */ + +#include "as.h" +#include "subsegs.h" + +#if defined (BFD_ASSEMBLER) && defined (NEED_LITERAL_POOL) + +valueT +add_to_literal_pool (sym, addend, sec, size) + symbolS *sym; + valueT addend; + segT sec; + int size; +{ + segT current_section = now_seg; + int current_subsec = now_subseg; + valueT offset; + bfd_reloc_code_real_type reloc_type; + char *p; + + subseg_set (sec, 0); + p = frag_more (size); + memset (p, 0, size); + + switch (size) + { + case 4: + reloc_type = BFD_RELOC_32; + break; + case 8: + reloc_type = BFD_RELOC_64; + break; + default: + abort (); + } + fix_new (frag_now, p - frag_now->fr_literal, size, sym, addend, 0, + reloc_type); + + subseg_set (current_section, current_subsec); + + offset = seg_info (sec)->literal_pool_size; + seg_info (sec)->literal_pool_size += size; + + return offset; +} +#endif /* BFD_ASSEMBLER */ -- 2.30.2