62ebcb5cbe
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.
126 lines
4.8 KiB
C
126 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)
|