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* symbols.c (S_GET_VALUE): Don't treat O_constant and local
symbols specially. Always resolve, adding fr_address to value. * write.c (write_object_file): Don't add fr_address to sym values. (relax_frag): Likewise. (relax_segment): Likewise. * config/obj-ieee.c (do_symbols): Likewise. * config/tc-cris.c (md_convert_frag): Likewise. * config/tc-fr30.c (md_convert_frag): Likewise. * config/tc-i386.c (md_convert_frag): Likewise. * config/tc-m32r.c (md_convert_frag): Likewise. * config/tc-m68hc11.c (md_convert_frag): Likewise. * config/tc-mcore.c (md_convert_frag): Likewise. * config/tc-mips.c (mips16_extended_frag): Likewise. * config/tc-ns32k.c (md_convert_frag): Likewise. * config/tc-m68k.c (md_convert_frag_1): Likewise. (BRANCHBWL, BRABSJUNC, BRABSJCOND, BRANCHBW, FBRANCH, DBCCLBR, DBCCABSJ, PCREL1632, PCINDEX, ABSTOPCREL): Decrement. (md_relax_table): Remove first four entries. Format. (md_estimate_size_before_relax): Remove old_fix. Don't bother setting fr_var. Simplify byte branch checks.
This commit is contained in:
Alan Modra
parent
677537c186
commit
ac62c3468d
@ -1,3 +1,26 @@
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2001-07-23 Alan Modra <amodra@bigpond.net.au>
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* symbols.c (S_GET_VALUE): Don't treat O_constant and local
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symbols specially. Always resolve, adding fr_address to value.
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* write.c (write_object_file): Don't add fr_address to sym values.
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(relax_frag): Likewise.
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(relax_segment): Likewise.
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* config/obj-ieee.c (do_symbols): Likewise.
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* config/tc-cris.c (md_convert_frag): Likewise.
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* config/tc-fr30.c (md_convert_frag): Likewise.
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* config/tc-i386.c (md_convert_frag): Likewise.
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* config/tc-m32r.c (md_convert_frag): Likewise.
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* config/tc-m68hc11.c (md_convert_frag): Likewise.
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* config/tc-mcore.c (md_convert_frag): Likewise.
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* config/tc-mips.c (mips16_extended_frag): Likewise.
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* config/tc-ns32k.c (md_convert_frag): Likewise.
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* config/tc-m68k.c (md_convert_frag_1): Likewise.
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(BRANCHBWL, BRABSJUNC, BRABSJCOND, BRANCHBW, FBRANCH, DBCCLBR,
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DBCCABSJ, PCREL1632, PCINDEX, ABSTOPCREL): Decrement.
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(md_relax_table): Remove first four entries. Format.
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(md_estimate_size_before_relax): Remove old_fix. Don't bother
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setting fr_var. Simplify byte branch checks.
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2001-07-23 Alan Modra <amodra@bigpond.net.au>
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* config/tc-hppa.c (pa_parse_nonneg_cmpsub_cmpltr): Remove
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@ -165,11 +188,11 @@
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fscan->fx_frag.
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* write.c (TC_FINALIZE_SYMS_BEFORE_SIZE_SEG): Default to 1.
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(write_object_file): Set finalize_syms to
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TC_FINALIZE_SYMS_BEFORE_SIZE_SEG just before size_segs is
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called.
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(write_object_file): Set finalize_syms to
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TC_FINALIZE_SYMS_BEFORE_SIZE_SEG just before size_segs is
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called.
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* doc/internals.texi; Document
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* doc/internals.texi; Document
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TC_FINALIZE_SYMS_BEFORE_SIZE_SEG.
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2001-07-02 Alan Modra <amodra@bigpond.net.au>
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@ -294,11 +317,11 @@
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2001-06-18 H.J. Lu <hjl@gnu.org>
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* doc/Makefile.am (info): Depend on $(MANS).
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(as.1): Remove the prefix `$(srcdir)/'.
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* doc/Makefile.in: Regenerated.
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* doc/Makefile.am (info): Depend on $(MANS).
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(as.1): Remove the prefix `$(srcdir)/'.
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* doc/Makefile.in: Regenerated.
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* as.1: Removed.
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* as.1: Removed.
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2001-06-18 Philip Blundell <philb@gnu.org>
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@ -331,21 +354,21 @@
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2001-06-12 Peter Jakubek <pjak@snafu.de>
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* gas/config/tc-m68k.c (parse_mri_control_operand): Fix handling
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of AND/OR.
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(swap_mri_condition): Add HS (alias fo CC) and LO (alias for CS).
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(reverse_mri_condition): Likewise.
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(swap_mri_condition): Issue warning for conditions that can not be
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swapped.
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(build_mri_control_operand): Fix order of operands (swapped).
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(build_mri_control_operand): Allow upper case extension in structured
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control directives.
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(s_mri_else): Likewise.
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(s_mri_next): Likewise.
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(s_mri_for): Likewise.
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(s_mri_if): Fix handling comment ('*') in mri mode.
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(s_mri_while): Likewise.
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* gas/macro.c (macro_expand): Allow macro invocation with empty
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extension.
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of AND/OR.
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(swap_mri_condition): Add HS (alias fo CC) and LO (alias for CS).
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(reverse_mri_condition): Likewise.
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(swap_mri_condition): Issue warning for conditions that can not be
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swapped.
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(build_mri_control_operand): Fix order of operands (swapped).
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(build_mri_control_operand): Allow upper case extension in structured
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control directives.
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(s_mri_else): Likewise.
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(s_mri_next): Likewise.
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(s_mri_for): Likewise.
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(s_mri_if): Fix handling comment ('*') in mri mode.
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(s_mri_while): Likewise.
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* gas/macro.c (macro_expand): Allow macro invocation with empty
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extension.
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2001-06-12 Nick Clifton <nickc@cambridge.redhat.com>
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@ -292,7 +292,7 @@ do_symbols (abfd)
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{
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ptr->sy_symbol.sy.section =
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(asection *) (segment_info[ptr->sy_symbol.seg].user_stuff);
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S_SET_VALUE (ptr, S_GET_VALUE (ptr) + ptr->sy_frag->fr_address);
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S_SET_VALUE (ptr, S_GET_VALUE (ptr));
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if (ptr->sy_symbol.sy.flags == 0)
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ptr->sy_symbol.sy.flags = BSF_LOCAL;
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}
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@ -495,10 +495,7 @@ md_convert_frag (abfd, sec, fragP)
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opcodep = fragP->fr_opcode;
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symbolP = fragP->fr_symbol;
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target_address
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= (symbolP
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? S_GET_VALUE (symbolP) + symbol_get_frag(fragP->fr_symbol)->fr_address
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: 0 ) + fragP->fr_offset;
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target_address = (symbolP ? S_GET_VALUE (symbolP) : 0) + fragP->fr_offset;
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address_of_var_part = fragP->fr_address + var_part_offset;
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switch (fragP->fr_subtype)
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@ -387,7 +387,6 @@ md_convert_frag (abfd, sec, fragP)
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{
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/* Address we want to reach in file space. */
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target_address = S_GET_VALUE (fragP->fr_symbol) + fragP->fr_offset;
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target_address += symbol_get_frag (fragP->fr_symbol)->fr_address;
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addend = (target_address - (opcode_address & -4)) >> 2;
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}
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@ -4088,15 +4088,6 @@ md_convert_frag (abfd, sec, fragP)
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/* Address we want to reach in file space. */
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target_address = S_GET_VALUE (fragP->fr_symbol) + fragP->fr_offset;
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#ifdef BFD_ASSEMBLER
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/* Not needed otherwise? */
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{
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/* Local symbols which have already been resolved have a NULL frag. */
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fragS *sym_frag = symbol_get_frag (fragP->fr_symbol);
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if (sym_frag)
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target_address += sym_frag->fr_address;
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}
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#endif
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/* Address opcode resides at in file space. */
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opcode_address = fragP->fr_address + fragP->fr_fix;
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@ -1564,7 +1564,6 @@ md_convert_frag (abfd, sec, fragP)
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{
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/* Address we want to reach in file space. */
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target_address = S_GET_VALUE (fragP->fr_symbol) + fragP->fr_offset;
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target_address += symbol_get_frag (fragP->fr_symbol)->fr_address;
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addend = (target_address - (opcode_address & -4)) >> 2;
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}
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@ -2441,9 +2441,8 @@ md_convert_frag (abfd, sec, fragP)
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buffer_address += fragP->fr_fix;
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/* The displacement of the address, from current location. */
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value = fragP->fr_symbol ? S_GET_VALUE (fragP->fr_symbol) : 0;
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value = S_GET_VALUE (fragP->fr_symbol);
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disp = (value + fragP->fr_offset) - object_address;
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disp += symbol_get_frag (fragP->fr_symbol)->fr_address;
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switch (fragP->fr_subtype)
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{
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@ -432,10 +432,10 @@ static const int n_archs = sizeof (archs) / sizeof (archs[0]);
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BYTE and SHORT forms, punting if that isn't enough. This gives us four
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different relaxation modes for branches: */
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#define BRANCHBWL 1 /* branch byte, word, or long */
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#define BRABSJUNC 2 /* absolute jump for LONG, unconditional */
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#define BRABSJCOND 3 /* absolute jump for LONG, conditional */
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#define BRANCHBW 4 /* branch byte or word */
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#define BRANCHBWL 0 /* branch byte, word, or long */
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#define BRABSJUNC 1 /* absolute jump for LONG, unconditional */
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#define BRABSJCOND 2 /* absolute jump for LONG, conditional */
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#define BRANCHBW 3 /* branch byte or word */
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/* We also relax coprocessor branches and DBcc's. All CPUs that support
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coprocessor branches support them in word and long forms, so we have only
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@ -445,9 +445,9 @@ static const int n_archs = sizeof (archs) / sizeof (archs[0]);
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This gives us two relaxation modes. If long branches are not available and
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absolute jumps are not acceptable, we don't relax DBcc's. */
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#define FBRANCH 5 /* coprocessor branch */
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#define DBCCLBR 6 /* DBcc relaxable with a long branch */
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#define DBCCABSJ 7 /* DBcc relaxable with an absolute jump */
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#define FBRANCH 4 /* coprocessor branch */
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#define DBCCLBR 5 /* DBcc relaxable with a long branch */
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#define DBCCABSJ 6 /* DBcc relaxable with an absolute jump */
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/* That's all for instruction relaxation. However, we also relax PC-relative
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operands. Specifically, we have three operand relaxation modes. On the
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@ -460,9 +460,9 @@ static const int n_archs = sizeof (archs) / sizeof (archs[0]);
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form of the PC+displacement+index operand. Finally, some absolute operands
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can be relaxed down to 16-bit PC-relative. */
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#define PCREL1632 8 /* 16-bit or 32-bit PC-relative */
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#define PCINDEX 9 /* PC+displacement+index */
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#define ABSTOPCREL 10 /* absolute relax down to 16-bit PC-relative */
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#define PCREL1632 7 /* 16-bit or 32-bit PC-relative */
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#define PCINDEX 8 /* PC+displacement+index */
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#define ABSTOPCREL 9 /* absolute relax down to 16-bit PC-relative */
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/* Note that calls to frag_var need to specify the maximum expansion
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needed; this is currently 10 bytes for DBCC. */
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@ -475,60 +475,55 @@ static const int n_archs = sizeof (archs) / sizeof (archs[0]);
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*/
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relax_typeS md_relax_table[] =
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{
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{1, 1, 0, 0}, /* First entries aren't used */
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{1, 1, 0, 0}, /* For no good reason except */
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{1, 1, 0, 0}, /* that the VAX doesn't either */
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{1, 1, 0, 0},
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{ 127, -128, 0, TAB (BRANCHBWL, SHORT) },
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{ 32767, -32768, 2, TAB (BRANCHBWL, LONG) },
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{ 0, 0, 4, 0 },
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{ 1, 1, 0, 0 },
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{(127), (-128), 0, TAB (BRANCHBWL, SHORT)},
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{(32767), (-32768), 2, TAB (BRANCHBWL, LONG)},
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{0, 0, 4, 0},
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{1, 1, 0, 0},
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{ 127, -128, 0, TAB (BRABSJUNC, SHORT) },
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{ 32767, -32768, 2, TAB (BRABSJUNC, LONG) },
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{ 0, 0, 4, 0 },
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{ 1, 1, 0, 0 },
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{(127), (-128), 0, TAB (BRABSJUNC, SHORT)},
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{(32767), (-32768), 2, TAB (BRABSJUNC, LONG)},
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{0, 0, 4, 0},
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{1, 1, 0, 0},
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{ 127, -128, 0, TAB (BRABSJCOND, SHORT) },
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{ 32767, -32768, 2, TAB (BRABSJCOND, LONG) },
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{ 0, 0, 6, 0 },
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{ 1, 1, 0, 0 },
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{(127), (-128), 0, TAB (BRABSJCOND, SHORT)},
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{(32767), (-32768), 2, TAB (BRABSJCOND, LONG)},
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{0, 0, 6, 0},
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{1, 1, 0, 0},
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{ 127, -128, 0, TAB (BRANCHBW, SHORT) },
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{ 0, 0, 2, 0 },
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{ 1, 1, 0, 0 },
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{ 1, 1, 0, 0 },
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{(127), (-128), 0, TAB (BRANCHBW, SHORT)},
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{0, 0, 2, 0},
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{1, 1, 0, 0},
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{1, 1, 0, 0},
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{ 1, 1, 0, 0 }, /* FBRANCH doesn't come BYTE */
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{ 32767, -32768, 2, TAB (FBRANCH, LONG) },
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{ 0, 0, 4, 0 },
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{ 1, 1, 0, 0 },
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{1, 1, 0, 0}, /* FBRANCH doesn't come BYTE */
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{(32767), (-32768), 2, TAB (FBRANCH, LONG)},
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{0, 0, 4, 0},
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{1, 1, 0, 0},
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{ 1, 1, 0, 0 }, /* DBCC doesn't come BYTE */
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{ 32767, -32768, 2, TAB (DBCCLBR, LONG) },
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{ 0, 0, 10, 0 },
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{ 1, 1, 0, 0 },
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{1, 1, 0, 0}, /* DBCC doesn't come BYTE */
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{(32767), (-32768), 2, TAB (DBCCLBR, LONG)},
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{0, 0, 10, 0},
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{1, 1, 0, 0},
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{ 1, 1, 0, 0 }, /* DBCC doesn't come BYTE */
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{ 32767, -32768, 2, TAB (DBCCABSJ, LONG) },
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{ 0, 0, 10, 0 },
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{ 1, 1, 0, 0 },
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{1, 1, 0, 0}, /* DBCC doesn't come BYTE */
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{(32767), (-32768), 2, TAB (DBCCABSJ, LONG)},
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{0, 0, 10, 0},
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{1, 1, 0, 0},
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{ 1, 1, 0, 0 }, /* PCREL1632 doesn't come BYTE */
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{ 32767, -32768, 2, TAB (PCREL1632, LONG) },
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{ 0, 0, 6, 0 },
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{ 1, 1, 0, 0 },
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{1, 1, 0, 0}, /* PCREL1632 doesn't come BYTE */
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{32767, -32768, 2, TAB (PCREL1632, LONG)},
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{0, 0, 6, 0},
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{1, 1, 0, 0},
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{ 125, -130, 0, TAB (PCINDEX, SHORT) },
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{ 32765, -32770, 2, TAB (PCINDEX, LONG) },
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{ 0, 0, 4, 0 },
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{ 1, 1, 0, 0 },
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{125, -130, 0, TAB (PCINDEX, SHORT)},
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{32765, -32770, 2, TAB (PCINDEX, LONG)},
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{0, 0, 4, 0},
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{1, 1, 0, 0},
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{1, 1, 0, 0}, /* ABSTOPCREL doesn't come BYTE */
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{(32767), (-32768), 2, TAB (ABSTOPCREL, LONG)},
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{0, 0, 4, 0},
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{1, 1, 0, 0},
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{ 1, 1, 0, 0 }, /* ABSTOPCREL doesn't come BYTE */
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{ 32767, -32768, 2, TAB (ABSTOPCREL, LONG) },
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{ 0, 0, 4, 0 },
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{ 1, 1, 0, 0 },
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};
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/* These are the machine dependent pseudo-ops. These are included so
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@ -4375,10 +4370,6 @@ md_convert_frag_1 (fragP)
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disp = fragP->fr_symbol ? S_GET_VALUE (fragP->fr_symbol) : 0;
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disp = (disp + fragP->fr_offset) - object_address;
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#ifdef BFD_ASSEMBLER
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disp += symbol_get_frag (fragP->fr_symbol)->fr_address;
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#endif
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switch (fragP->fr_subtype)
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{
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case TAB (BRANCHBWL, BYTE):
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@ -4594,10 +4585,6 @@ md_estimate_size_before_relax (fragP, segment)
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register fragS *fragP;
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segT segment;
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{
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int old_fix;
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old_fix = fragP->fr_fix;
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/* Handle SZ_UNDEF first, it can be changed to BYTE or SHORT. */
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switch (fragP->fr_subtype)
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{
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@ -4694,44 +4681,31 @@ md_estimate_size_before_relax (fragP, segment)
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case TAB (BRABSJCOND, BYTE):
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case TAB (BRANCHBW, BYTE):
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/* We can't do a short jump to the next instruction, so in that
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case we force word mode. At this point S_GET_VALUE should
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return the offset of the symbol within its frag. If the
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symbol is at the start of a frag, and it is the next frag
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with any data in it (usually this is just the next frag, but
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assembler listings may introduce empty frags), we must use
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word mode. */
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if (fragP->fr_symbol && S_GET_VALUE (fragP->fr_symbol) == 0)
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case we force word mode. If the symbol is at the start of a
|
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frag, and it is the next frag with any data in it (usually
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this is just the next frag, but assembler listings may
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introduce empty frags), we must use word mode. */
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if (fragP->fr_symbol)
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{
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fragS *stop;
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fragS *l;
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fragS *sym_frag;
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stop = symbol_get_frag (fragP->fr_symbol);
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for (l = fragP->fr_next; l != stop; l = l->fr_next)
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sym_frag = symbol_get_frag (fragP->fr_symbol);
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if (S_GET_VALUE (fragP->fr_symbol) == sym_frag->fr_address)
|
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{
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/* Catch empty alignment frags whoes fr_offset field
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is an alignment requirement of 2 bytes. The check
|
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below will misinterpret this as evidence that real
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code exists between the symbol and the instruction
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and so will not convert the short jump into a word
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jump. */
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if (l->fr_fix == 0
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&& l->fr_var == 1
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&& (l->fr_type == rs_align || l->fr_type == rs_align_code))
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continue;
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if (l->fr_fix + l->fr_var != 0)
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break;
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fragS *l;
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for (l = fragP->fr_next; l != sym_frag; l = l->fr_next)
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if (l->fr_fix != 0)
|
||||
break;
|
||||
if (l == sym_frag)
|
||||
fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT);
|
||||
}
|
||||
if (l == stop)
|
||||
fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT);
|
||||
}
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
fragP->fr_var = md_relax_table[fragP->fr_subtype].rlx_length;
|
||||
return fragP->fr_var + fragP->fr_fix - old_fix;
|
||||
return md_relax_table[fragP->fr_subtype].rlx_length;
|
||||
}
|
||||
|
||||
#if defined(OBJ_AOUT) | defined(OBJ_BOUT)
|
||||
|
||||
@ -1900,7 +1900,6 @@ md_convert_frag (abfd, sec, fragP)
|
||||
int targ_addr = S_GET_VALUE (fragP->fr_symbol) + fragP->fr_offset;
|
||||
|
||||
buffer = (unsigned char *) (fragP->fr_fix + fragP->fr_literal);
|
||||
targ_addr += symbol_get_frag (fragP->fr_symbol)->fr_address;
|
||||
|
||||
switch (fragP->fr_subtype)
|
||||
{
|
||||
|
||||
@ -10895,7 +10895,7 @@ mips16_extended_frag (fragp, sec, stretch)
|
||||
}
|
||||
|
||||
sym_frag = symbol_get_frag (fragp->fr_symbol);
|
||||
val = S_GET_VALUE (fragp->fr_symbol) + sym_frag->fr_address;
|
||||
val = S_GET_VALUE (fragp->fr_symbol);
|
||||
symsec = S_GET_SEGMENT (fragp->fr_symbol);
|
||||
|
||||
if (op->pcrel)
|
||||
|
||||
@ -2051,9 +2051,6 @@ md_convert_frag (abfd, sec, fragP)
|
||||
|
||||
/* The displacement of the address, from current location. */
|
||||
disp = (S_GET_VALUE (fragP->fr_symbol) + fragP->fr_offset) - object_address;
|
||||
#ifdef BFD_ASSEMBLER
|
||||
disp += symbol_get_frag (fragP->fr_symbol)->fr_address;
|
||||
#endif
|
||||
disp += md_pcrel_adjust (fragP);
|
||||
|
||||
md_number_to_disp (buffer_address, (long) disp, (int) ext);
|
||||
|
||||
@ -1574,10 +1574,10 @@ S_GET_VALUE (s)
|
||||
{
|
||||
#ifdef BFD_ASSEMBLER
|
||||
if (LOCAL_SYMBOL_CHECK (s))
|
||||
return ((struct local_symbol *) s)->lsy_value;
|
||||
return resolve_symbol_value (s);
|
||||
#endif
|
||||
|
||||
if (!s->sy_resolved && s->sy_value.X_op != O_constant)
|
||||
if (!s->sy_resolved)
|
||||
{
|
||||
valueT val = resolve_symbol_value (s);
|
||||
if (!finalize_syms)
|
||||
|
||||
19
gas/write.c
19
gas/write.c
@ -1750,9 +1750,6 @@ write_object_file ()
|
||||
/* Patch the jump table. */
|
||||
/* This is the offset from ??? to table_ptr+0. */
|
||||
to_addr = table_addr - S_GET_VALUE (lie->sub);
|
||||
#ifdef BFD_ASSEMBLER
|
||||
to_addr -= symbol_get_frag (lie->sub)->fr_address;
|
||||
#endif
|
||||
#ifdef TC_CHECK_ADJUSTED_BROKEN_DOT_WORD
|
||||
TC_CHECK_ADJUSTED_BROKEN_DOT_WORD (to_addr, lie);
|
||||
#endif
|
||||
@ -1769,9 +1766,6 @@ write_object_file ()
|
||||
/* This is a long jump from table_ptr+0 to the final target. */
|
||||
from_addr = table_addr;
|
||||
to_addr = S_GET_VALUE (lie->add) + lie->addnum;
|
||||
#ifdef BFD_ASSEMBLER
|
||||
to_addr += symbol_get_frag (lie->add)->fr_address;
|
||||
#endif
|
||||
md_create_long_jump (table_ptr, from_addr, to_addr, lie->dispfrag,
|
||||
lie->add);
|
||||
table_ptr += md_long_jump_size;
|
||||
@ -2115,7 +2109,7 @@ relax_frag (segment, fragP, stretch)
|
||||
#endif
|
||||
know (!(S_GET_SEGMENT (symbolP) == absolute_section)
|
||||
|| sym_frag == &zero_address_frag);
|
||||
target += S_GET_VALUE (symbolP) + sym_frag->fr_address;
|
||||
target += S_GET_VALUE (symbolP);
|
||||
|
||||
/* If frag has yet to be reached on this pass,
|
||||
assume it will move by STRETCH just as we did.
|
||||
@ -2356,11 +2350,9 @@ relax_segment (segment_frag_root, segment)
|
||||
if (lie->added)
|
||||
continue;
|
||||
|
||||
offset = (symbol_get_frag (lie->add)->fr_address
|
||||
+ S_GET_VALUE (lie->add)
|
||||
offset = (S_GET_VALUE (lie->add)
|
||||
+ lie->addnum
|
||||
- (symbol_get_frag (lie->sub)->fr_address
|
||||
+ S_GET_VALUE (lie->sub)));
|
||||
- S_GET_VALUE (lie->sub));
|
||||
if (offset <= -32768 || offset >= 32767)
|
||||
{
|
||||
if (flag_warn_displacement)
|
||||
@ -2436,9 +2428,8 @@ relax_segment (segment_frag_root, segment)
|
||||
know (!(S_GET_SEGMENT (symbolP) == SEG_ABSOLUTE)
|
||||
|| (symbolP->sy_frag == &zero_address_frag));
|
||||
#endif
|
||||
target += (S_GET_VALUE (symbolP)
|
||||
+ symbol_get_frag (symbolP)->fr_address);
|
||||
} /* if we have a symbol */
|
||||
target += S_GET_VALUE (symbolP);
|
||||
}
|
||||
|
||||
know (fragP->fr_next);
|
||||
after = fragP->fr_next->fr_address;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user