binutils-gdb/gas/config/tc-mn10300.h
Alan Modra 62ebcb5cbe gas TC_PARSE_CONS_EXPRESSION communication with TC_CONS_FIX_NEW
A number of targets pass extra information from TC_PARSE_CONS_EXPRESSION
to TC_CONS_FIX_NEW via static variables.  That's OK, but not best
practice.  tc-ppc.c goes further in implementing its own replacement
for cons(), because the generic one doesn't allow relocation modifiers
on constants.  This patch fixes both of these warts.

	* gas/config/tc-alpha.h (TC_CONS_FIX_NEW): Add RELOC parameter.
	* gas/config/tc-arc.c (arc_cons_fix_new): Add reloc parameter.
	* gas/config/tc-arc.h (arc_cons_fix_new): Update prototype.
	(TC_CONS_FIX_NEW): Add RELOC parameter.
	* gas/config/tc-arm.c (cons_fix_new_arm): Similarly
	* gas/config/tc-arm.h (cons_fix_new_arm, TC_CONS_FIX_NEW): Similarly.
	* gas/config/tc-cr16.c (cr16_cons_fix_new): Similarly.
	* gas/config/tc-cr16.h (cr16_cons_fix_new, TC_CONS_FIX_NEW): Similarly.
	* gas/config/tc-crx.h (TC_CONS_FIX_NEW): Similarly.
	* gas/config/tc-m32c.c (m32c_cons_fix_new): Similarly.
	* gas/config/tc-m32c.h (m32c_cons_fix_new, TC_CONS_FIX_NEW): Similarly.
	* gas/config/tc-mn10300.c (mn10300_cons_fix_new): Similarly.
	* gas/config/tc-mn10300.h (mn10300_cons_fix_new, TC_CONS_FIX_NEW):
	Similarly.
	* gas/config/tc-ns32k.c (cons_fix_new_ns32k): Similarly.
	* gas/config/tc-ns32k.h (cons_fix_new_ns32k): Similarly.
	* gas/config/tc-pj.c (pj_cons_fix_new_pj): Similarly.
	* gas/config/tc-pj.h (pj_cons_fix_new_pj, TC_CONS_FIX_NEW): Similarly.
	* gas/config/tc-rx.c (rx_cons_fix_new): Similarly.
	* gas/config/tc-rx.h (rx_cons_fix_new, TC_CONS_FIX_NEW): Similarly.
	* gas/config/tc-sh.c (sh_cons_fix_new): Similarly.
	* gas/config/tc-sh.h (sh_cons_fix_new, TC_CONS_FIX_NEW): Similarly.
	* gas/config/tc-tic54x.c (tic54x_cons_fix_new): Similarly.
	* gas/config/tc-tic54x.h (tic54x_cons_fix_new, TC_CONS_FIX_NEW):
	Similarly.
	* gas/config/tc-tic6x.c (tic6x_cons_fix_new): Similarly.
	* gas/config/tc-tic6x.h (tic6x_cons_fix_new, TC_CONS_FIX_NEW):
	Similarly.
	* gas/config/tc-arc.c (arc_parse_cons_expression): Return reloc.
	* gas/config/tc-arc.h (arc_parse_cons_expression): Update proto.
	* gas/config/tc-avr.c (exp_mod_data): Make global.
	(pexp_mod_data): Delete.
	(avr_parse_cons_expression): Return exp_mod_data pointer.
	(avr_cons_fix_new): Add exp_mod_data_t pointer param.
	(exp_mod_data_t): Move typedef..
	* gas/config/tc-avr.h: ..to here.
	(exp_mod_data): Declare.
	(TC_PARSE_CONS_RETURN_TYPE, TC_PARSE_CONS_RETURN_NONE): Define.
	(avr_parse_cons_expression, avr_cons_fix_new): Update prototype.
	(TC_CONS_FIX_NEW): Update.
	* gas/config/tc-hppa.c (hppa_field_selector): Delete static var.
	(cons_fix_new_hppa): Add hppa_field_selector param.
	(fix_new_hppa): Adjust.
	(parse_cons_expression_hppa): Return field selector.
	* gas/config/tc-hppa.h (parse_cons_expression_hppa): Update proto.
	(cons_fix_new_hppa): Likewise.
	(TC_PARSE_CONS_RETURN_TYPE, TC_PARSE_CONS_RETURN_NONE): Define.
	* gas/config/tc-i386.c (got_reloc): Delete static var.
	(x86_cons_fix_new): Add reloc param.
	(x86_cons): Return got reloc.
	* gas/config/tc-i386.h (x86_cons, x86_cons_fix_new): Update proto.
	(TC_CONS_FIX_NEW): Add RELOC param.
	* gas/config/tc-ia64.c (ia64_cons_fix_new): Add reloc param.  Adjust
	calls.
	* gas/config/tc-ia64.h (ia64_cons_fix_new): Update prototype.
	(TC_CONS_FIX_NEW): Add reloc param.
	* gas/config/tc-microblaze.c (parse_cons_expression_microblaze):
	Return reloc.
	(cons_fix_new_microblaze): Add reloc param.
	* gas/config/tc-microblaze.h: Formatting.
	(parse_cons_expression_microblaze): Update proto.
	(cons_fix_new_microblaze): Likewise.
	* gas/config/tc-nios2.c (nios2_tls_ldo_reloc): Delete static var.
	(nios2_cons): Return ldo reloc.
	(nios2_cons_fix_new): Delete.
	* gas/config/tc-nios2.h (nios2_cons): Update prototype.
	(nios2_cons_fix_new, TC_CONS_FIX_NEW): Delete.
	* gas/config/tc-ppc.c (md_pseudo_table): Remove quad, long, word,
	short.  Make llong use cons.
	(ppc_elf_suffix): Return BFD_RELOC_NONE rather than BFD_RELOC_UNUSED.
	(ppc_elf_cons): Delete.
	(ppc_elf_parse_cons): New function.
	(ppc_elf_validate_fix): Don't check for BFD_RELOC_UNUSED.
	(md_assemble): Use BFD_RELOC_NONE rather than BFD_RELOC_UNUSED.
	* gas/config/tc-ppc.h (TC_PARSE_CONS_EXPRESSION): Define
	(ppc_elf_parse_cons): Declare.
	* gas/config/tc-sparc.c (sparc_cons_special_reloc): Delete static var.
	(sparc_cons): Return reloc specifier.
	(cons_fix_new_sparc): Add reloc specifier param.
	(sparc_cfi_emit_pcrel_expr): Use emit_expr_with_reloc.
	* gas/config/tc-sparc.h (TC_PARSE_CONS_RETURN_TYPE): Define.
	(TC_PARSE_CONS_RETURN_NONE): Define.
	(sparc_cons, cons_fix_new_sparc): Update prototype.
	* gas/config/tc-v850.c (hold_cons_reloc): Delete static var.
	(v850_reloc_prefix): Use BFD_RELOC_NONE rather than BFD_RELOC_UNUSED.
	(md_assemble): Likewise.
	(parse_cons_expression_v850): Return reloc.
	(cons_fix_new_v850): Add reloc parameter.
	* gas/config/tc-v850.h (parse_cons_expression_v850): Update proto.
	(cons_fix_new_v850): Likewise.
	* gas/config/tc-vax.c (vax_cons_special_reloc): Delete static var.
	(vax_cons): Return reloc.
	(vax_cons_fix_new): Add reloc parameter.
	* gas/config/tc-vax.h (vax_cons, vax_cons_fix_new): Update proto.
	* gas/config/tc-xstormy16.c (xstormy16_cons_fix_new): Add reloc param.
	* gas/config/tc-xstormy16.h (xstormy16_cons_fix_new): Update proto.
	* gas/dwarf2dbg.c (TC_PARSE_CONS_RETURN_NONE): Provide default.
	(emit_fixed_inc_line_addr): Adjust exmit_expr_fix calls.
	* gas/read.c (TC_PARSE_CONS_EXPRESSION): Return value.
	(do_parse_cons_expression): Adjust.
	(cons_worker): Pass return value from TC_PARSE_CONS_EXPRESSION
	to emit_expr_with_reloc.
	(emit_expr_with_reloc): New function handling reloc, mostly
	extracted from..
	(emit_expr): ..here.
	(emit_expr_fix): Add reloc param.  Adjust TC_CONS_FIX_NEW invocation.
	Handle reloc.
	(parse_mri_cons): Convert to ISO.
	* gas/read.h (TC_PARSE_CONS_RETURN_TYPE): Define.
	(TC_PARSE_CONS_RETURN_NONE): Define.
	(emit_expr_with_reloc): Declare.
	(emit_expr_fix): Update prototype.
	* gas/write.c (write_object_file): Update TC_CONS_FIX_NEW invocation.
2014-04-09 14:29:05 +09:30

127 lines
4.8 KiB
C

/* tc-mn10300.h -- Header file for tc-mn10300.c.
Copyright (C) 1996-2014 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 3, 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, 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
#define TC_MN10300
#define TARGET_BYTES_BIG_ENDIAN 0
#define DIFF_EXPR_OK
#define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_"
#define TC_FORCE_RELOCATION(FIX) mn10300_force_relocation (FIX)
extern bfd_boolean mn10300_force_relocation (struct fix *);
#define TC_FORCE_RELOCATION_LOCAL(FIX) \
(!(FIX)->fx_pcrel \
|| (FIX)->fx_r_type == BFD_RELOC_32_PLT_PCREL \
|| (FIX)->fx_r_type == BFD_RELOC_MN10300_GOT32 \
|| (FIX)->fx_r_type == BFD_RELOC_32_GOT_PCREL \
|| TC_FORCE_RELOCATION (FIX))
#define md_parse_name(NAME, EXPRP, MODE, NEXTCHARP) \
mn10300_parse_name ((NAME), (EXPRP), (MODE), (NEXTCHARP))
int mn10300_parse_name (char const *, expressionS *, enum expr_mode, char *);
#define TC_CONS_FIX_NEW(FRAG, OFF, LEN, EXP, RELOC) \
mn10300_cons_fix_new ((FRAG), (OFF), (LEN), (EXP), (RELOC))
void mn10300_cons_fix_new (fragS *, int, int, expressionS *,
bfd_reloc_code_real_type);
/* This is used to construct expressions out of @GOTOFF, @PLT and @GOT
symbols. The relocation type is stored in X_md. */
#define O_PIC_reloc O_md1
/* The target BFD architecture. */
#define TARGET_ARCH bfd_arch_mn10300
#ifdef TE_LINUX
#define TARGET_FORMAT "elf32-am33lin"
#else
#define TARGET_FORMAT "elf32-mn10300"
#endif
/* Do not adjust relocations involving symbols in code sections,
because it breaks linker relaxations. This could be fixed in the
linker, but this fix is simpler, and it pretty much only affects
object size a little bit. */
#define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEC) \
(((SEC)->flags & SEC_CODE) != 0 \
|| ! SEG_NORMAL (SEC) \
|| (FIX)->fx_r_type == BFD_RELOC_MN10300_ALIGN \
|| TC_FORCE_RELOCATION (FIX))
/* We validate subtract arguments within tc_gen_reloc(), so don't
report errors at this point. */
#define TC_VALIDATE_FIX_SUB(FIX, SEG) 1
/* Fixup debug sections since we will never relax them. Ideally, we
could do away with this and instead check every single fixup with
TC_FORCE_RELOCATION and TC_FORCE_RELOCATION_SUB_NAME, verifying
that the sections of the referenced symbols (and not the sections
in which the fixup appears) may be subject to relaxation. We'd
still have to check the section in which the fixup appears, because
we want to do some simplifications in debugging info that might
break in real code.
Using the infrastructure in write.c to simplify subtraction fixups
would enable us to remove a lot of code from tc_gen_reloc(), but
this is simpler, faster, and produces almost the same effect.
Also, in the macros above, we can't check whether the fixup is in a
debugging section or not, so we have to use this for now. */
#define TC_LINKRELAX_FIXUP(seg) (seg->flags & SEC_ALLOC)
#define md_operand(x)
/* Permit temporary numeric labels. */
#define LOCAL_LABELS_FB 1
/* We don't need to handle .word strangely. */
#define WORKING_DOT_WORD
#define md_number_to_chars number_to_chars_littleendian
#define tc_fix_adjustable(FIX) mn10300_fix_adjustable (FIX)
extern bfd_boolean mn10300_fix_adjustable (struct fix *);
/* We do relaxing in the assembler as well as the linker. */
extern const struct relax_type md_relax_table[];
#define TC_GENERIC_RELAX_TABLE md_relax_table
#define DWARF2_LINE_MIN_INSN_LENGTH 1
/* The difference between same-section symbols may be affected by linker
relaxation, so do not resolve such expressions in the assembler. */
#define md_allow_local_subtract(l,r,s) mn10300_allow_local_subtract (l, r, s)
extern bfd_boolean mn10300_allow_local_subtract (expressionS *, expressionS *, segT);
#define RELOC_EXPANSION_POSSIBLE
#define MAX_RELOC_EXPANSION 2
#define TC_FRAG_TYPE bfd_boolean
#define HANDLE_ALIGN(frag) mn10300_handle_align (frag)
extern void mn10300_handle_align (fragS *);
/* Only allow call frame debug info optimization when linker relaxation is
not enabled as otherwise we could generate the DWARF directives without
the relocs necessary to patch them up. */
#define md_allow_eh_opt (linkrelax == 0)