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- /* tc-hppa.h -- Header file for the PA */
-
- /* Copyright (C) 1989, 1993 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 1, 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-
- /* HP PA-RISC support was contributed by the Center for Software Science
- at the University of Utah. */
-
- /* Please refrain from exposing the world to the internals of tc-hppa.c
- when this file is included. This means only declaring exported functions,
- (please PARAMize them!) not exporting structures and data items which
- are used solely within tc-hppa.c, etc.
-
- Also refrain from adding any more object file dependent code, there is
- already far too much object file format dependent code in this file.
- In theory this file should contain only exported functions, structures
- and data declarations common to all PA assemblers. */
-
- #ifndef _TC_HPPA_H
- #define _TC_HPPA_H
-
- #ifndef TC_HPPA
- #define TC_HPPA 1
- #endif
-
- #define TARGET_ARCH bfd_arch_hppa
- #define TARGET_BYTES_BIG_ENDIAN 1
-
- /* FIXME. The lack of a place to put things which are both target cpu
- and target format dependent makes hacks like this necessary. */
- #ifdef OBJ_ELF
- #include "bfd/elf32-hppa.h"
- #define TARGET_FORMAT "elf32-hppa"
- #endif
-
- #ifdef OBJ_SOM
- #include "bfd/som.h"
- #define TARGET_FORMAT "som"
- #endif
-
- /* FIXME. Why oh why aren't these defined somewhere globally? */
- #ifndef FALSE
- #define FALSE (0)
- #define TRUE (!FALSE)
- #endif
-
- /* Local labels have an "L$" prefix. */
- #define LOCAL_LABEL(name) ((name)[0] == 'L' && (name)[1] == '$')
- #define FAKE_LABEL_NAME "L$0\001"
- #define ASEC_NULL (asection *)0
-
- /* Labels are not required to have a colon for a suffix. */
- #define LABELS_WITHOUT_COLONS
-
- /* FIXME. This should be static and declared in tc-hppa.c, but
- pa_define_label gets used outside of tc-hppa.c via tc_frob_label.
- Should also be PARAMized, but symbolS isn't available here. */
- extern void pa_define_label ();
-
- /* FIXME. Types not available here, so they can't be PARAMized. */
- extern void parse_cons_expression_hppa ();
- extern void cons_fix_new_hppa ();
- extern int hppa_force_relocation ();
-
- /* This gets called before writing the object file to make sure
- things like entry/exit and proc/procend pairs match. */
- extern void pa_check_eof PARAMS ((void));
- #define tc_frob_file pa_check_eof
-
- #define tc_frob_label(sym) pa_define_label (sym)
-
- /* The PA does not need support for either of these. */
- #define tc_crawl_symbol_chain(headers) {;}
- #define tc_headers_hook(headers) {;}
-
- #define RELOC_EXPANSION_POSSIBLE
- #define MAX_RELOC_EXPANSION 6
-
- /* FIXME. More things which are both HPPA and ELF specific. There is
- nowhere to put such things. */
- #ifdef OBJ_ELF
- #define elf_tc_final_processing elf_hppa_final_processing
- void elf_hppa_final_processing PARAMS ((void));
- #endif
-
- /* The PA needs to parse field selectors in .byte, etc. */
-
- #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) \
- parse_cons_expression_hppa (EXP)
- #define TC_CONS_FIX_NEW cons_fix_new_hppa
-
- /* On the PA, an equal sign often appears as a condition or nullification
- completer in an instruction. This can be detected by checking the
- previous character, if the character is a comma, then the equal is
- being used as part of an instruction. */
- #define TC_EQUAL_IN_INSN(C, PTR) ((C) == ',')
-
- /* Similarly for an exclamation point. It is used in FP comparison
- instructions and as an end of line marker. When used in an instruction
- it will always follow a comma. */
- #define TC_EOL_IN_INSN(PTR) (is_end_of_line[*(PTR)] && (PTR)[-1] == ',')
-
- #define tc_fix_adjustable hppa_fix_adjustable
-
- /* Because of the strange PA calling conventions, it is sometimes
- necessary to emit a relocation for a call even though it would
- normally appear safe to handle it completely within GAS. */
- #define TC_FORCE_RELOCATION(FIXP) hppa_force_relocation (FIXP)
-
- #ifdef OBJ_SOM
- /* If a symbol is imported, but never used, then the symbol should
- *not* end up in the symbol table. Likewise for absolute symbols
- with local scope. */
- #define tc_frob_symbol(sym,punt) \
- if ((S_GET_SEGMENT (sym) == &bfd_und_section && sym->sy_used == 0) \
- || (S_GET_SEGMENT (sym) == &bfd_abs_section \
- && (sym->bsym->flags & BSF_EXPORT) == 0)) \
- punt = 1
-
- /* We need to be able to make relocations involving the difference of
- two symbols. This includes the difference of two symbols when
- one of them is undefined (this comes up in PIC code generation).
-
- We don't define DIFF_EXPR_OK because it does the wrong thing if
- the add symbol is undefined and the sub symbol is a symbol in
- the same section as the relocation. We also need some way to
- specialize some code in adjust_reloc_syms. */
- #define UNDEFINED_DIFFERENCE_OK
- #endif
-
- #ifdef OBJ_ELF
- /* Arggg. The generic BFD ELF code always adds in the section->vma
- to non-common symbols. This is a lose on the PA. To make matters
- worse, the generic ELF code already defined obj_frob_symbol. */
- #define tc_frob_symbol(sym,punt) \
- { \
- if (S_GET_SEGMENT (sym) != &bfd_com_section \
- && S_GET_SEGMENT (sym) != &bfd_und_section) \
- S_SET_VALUE ((sym), (S_GET_VALUE (sym) - (sym)->bsym->section->vma)); \
- if ((S_GET_SEGMENT (sym) == &bfd_und_section && sym->sy_used == 0) \
- || (S_GET_SEGMENT (sym) == &bfd_abs_section \
- && (sym->bsym->flags & BSF_EXPORT) == 0)) \
- punt = 1; \
- }
- #endif
-
- #define md_operand(x)
-
- #define TC_FIX_TYPE PTR
- #define TC_INIT_FIX_DATA(FIXP) ((FIXP)->tc_fix_data = NULL)
-
- #endif /* _TC_HPPA_H */
-