From: Michael Meissner Date: Thu, 26 Jan 1995 16:39:26 +0000 (+0000) Subject: Allow configuration of PowerPC embedded ABI. X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=da8fa3ba290cf9aa6c9b947fd92d6870727b2b2a;p=deliverable%2Fbinutils-gdb.git Allow configuration of PowerPC embedded ABI. --- diff --git a/gas/ChangeLog b/gas/ChangeLog index 72c437a025..d64caec7ad 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,12 @@ +Thu Jan 26 11:35:33 1995 Michael Meissner + + * configure: Add support for configuring powerpc-*-eabi. + + * config/tc-ppc.c (GOT_symbol): Define if object format is ELF. + + * config/tc-ppc.h (GLOBAL_OFFSET_TABLE_NAME): Define if object + format is ELF and not defined to be "_GLOBAL_OFFSET_TABLE_". + Wed Jan 25 16:23:13 1995 Jim Wilson * tc-sh.c (little): Add argument IGNORE to avoid compiler warnings. diff --git a/gas/config/tc-ppc.c b/gas/config/tc-ppc.c index e2f4ccc753..8f7ecae486 100644 --- a/gas/config/tc-ppc.c +++ b/gas/config/tc-ppc.c @@ -182,6 +182,11 @@ static asection *ppc_coff_debug_section; static bfd_size_type ppc_debug_name_section_size; #endif /* OBJ_COFF */ + +#ifdef OBJ_ELF +symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */ +#endif /* OBJ_ELF */ + #ifdef OBJ_ELF CONST char *md_shortopts = "um:VQ:"; diff --git a/gas/config/tc-ppc.h b/gas/config/tc-ppc.h new file mode 100644 index 0000000000..82a184107b --- /dev/null +++ b/gas/config/tc-ppc.h @@ -0,0 +1,157 @@ +/* tc-ppc.h -- Header file for tc-ppc.c. + Copyright (C) 1994 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Cygnus Support. + + 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. */ + +#define TC_PPC + +#ifndef BFD_ASSEMBLER + #error PowerPC support requires BFD_ASSEMBLER +#endif + +/* The target BFD architecture. */ +#define TARGET_ARCH (ppc_arch ()) +extern enum bfd_architecture ppc_arch PARAMS ((void)); + +/* The target BFD format. */ +#ifdef OBJ_COFF +#define TARGET_FORMAT "aixcoff-rs6000" +#endif +#ifdef OBJ_ELF +#define TARGET_FORMAT "elf32-powerpc" +#endif + +/* Permit temporary numeric labels. */ +#define LOCAL_LABELS_FB + +/* $ is used to refer to the current location. */ +#define DOLLAR_DOT + +/* Strings do not use backslash escapes. */ +#define NO_STRING_ESCAPES + +#ifdef OBJ_COFF +/* When using COFF, we determine whether or not to output a symbol + based on sy_tc.output, not on the name. */ +#define LOCAL_LABEL(name) 0 +#endif +#ifdef OBJ_ELF +/* When using ELF, local labels start with '.'. */ +#define LOCAL_LABEL(name) (name[0] == '.' \ + && (name[1] == 'L' || name[1] == '.')) +#define FAKE_LABEL_NAME ".L0\001" +#endif + +/* Set the endianness we are using. Default to big endian. */ +#ifndef TARGET_BYTES_BIG_ENDIAN +#ifndef TARGET_BYTES_LITTLE_ENDIAN +#define TARGET_BYTES_BIG_ENDIAN +#endif +#endif + +#ifdef TARGET_BYTES_BIG_ENDIAN +#define PPC_BIG_ENDIAN 1 +#else +#define PPC_BIG_ENDIAN 0 +#endif + +/* We don't need to handle .word strangely. */ +#define WORKING_DOT_WORD + +/* We set the fx_done field appropriately in md_apply_fix. */ +#define TC_HANDLES_FX_DONE + +#ifdef OBJ_COFF + +/* Declarations needed when generating XCOFF code. XCOFF is an + extension of COFF, used only on the RS/6000. Rather than create an + obj-xcoff, we just use obj-coff, and handle the extensions here in + tc-ppc. */ + +/* We need to keep some information for symbols. */ +struct ppc_tc_sy +{ + /* We keep a few linked lists of symbols. */ + struct symbol *next; + /* Non-zero if the symbol should be output. The RS/6000 assembler + only outputs symbols that are external or are mentioned in a + .globl or .lglobl statement. */ + int output; + /* The symbol class. */ + int class; + /* The real name, if the symbol was renamed. */ + char *real_name; + /* For a csect symbol, the subsegment we are using. This is zero + for symbols that are not csects. */ + subsegT subseg; + /* For a csect or common symbol, the alignment to use. */ + int align; + /* For a function symbol, a symbol whose value is the size. The + field is NULL if there is no size. */ + struct symbol *size; + /* For a csect symbol, the last symbol which has been defined in + this csect, or NULL if none have been defined so far. For a .bs + symbol, the referenced csect symbol. */ + struct symbol *within; +}; + +#define TC_SYMFIELD_TYPE struct ppc_tc_sy + +/* We need an additional auxent for function symbols. */ +#define OBJ_COFF_MAX_AUXENTRIES 2 + +/* Square and curly brackets are permitted in symbol names. */ +#define LEX_BR 3 + +/* Canonicalize the symbol name. */ +#define tc_canonicalize_symbol_name(name) ppc_canonicalize_symbol_name (name) +extern char *ppc_canonicalize_symbol_name PARAMS ((char *)); + +/* Get the symbol class from the name. */ +#define tc_symbol_new_hook(sym) ppc_symbol_new_hook (sym) +extern void ppc_symbol_new_hook PARAMS ((struct symbol *)); + +/* Set the symbol class of a label based on the csect. */ +#define tc_frob_label(sym) ppc_frob_label (sym) +extern void ppc_frob_label PARAMS ((struct symbol *)); + +/* TOC relocs requires special handling. */ +#define tc_fix_adjustable(fixp) ppc_fix_adjustable (fixp) +extern int ppc_fix_adjustable PARAMS ((struct fix *)); + +/* We need to set the section VMA. */ +#define tc_frob_section(sec) ppc_frob_section (sec) +extern void ppc_frob_section PARAMS ((asection *)); + +/* Finish up the symbol. */ +#define tc_frob_symbol(sym, punt) punt = ppc_frob_symbol (sym) +extern int ppc_frob_symbol PARAMS ((struct symbol *)); + +/* Finish up the file. */ +#define tc_frob_file() ppc_frob_file () +extern void ppc_frob_file PARAMS ((void)); + +#endif /* OBJ_COFF */ + +#ifdef OBJ_ELF +/* The name of the global offset table generated by the compiler. Allow + this to be overridden if need be. */ +#ifndef GLOBAL_OFFSET_TABLE_NAME +#define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_" +#endif +#endif