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* write.c (TC_FORCE_RELOCATION_SUB_LOCAL): Heed md_register_arithmetic.

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(TC_VALIDATE_FIX_SUB): Likewise.
	* config/tc-frv.h (TC_FORCE_RELOCATION_SUB_LOCAL): Likewise.
	* config/tc-hppa.h (TC_FORCE_RELOCATION_SUB_LOCAL): Likewise.
	* config/tc-mn10300.h (TC_VALIDATE_FIX_SUB): Likewise.
	* config/tc-sh.h (TC_VALIDATE_FIX_SUB): Likewise.
	(TC_FORCE_RELOCATION_SUB_LOCAL): Likewise.
	* config/tc-sh64.h (TC_VALIDATE_FIX_SUB): Likewise.
	* config/tc-xtensa.h (TC_VALIDATE_FIX_SUB): Likewise.
	* doc/internals.texi (TC_FORCE_RELOCATION_SUB_ABS,
	TC_FORCE_RELOCATION_SUB_LOCAL, TC_VALIDATE_FIX_SUB): Show new param.
This commit is contained in:
Alan Modra 2008-09-19 10:00:40 +00:00
parent e79f59555a
commit 5db484ff3d
9 changed files with 45 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
gas/ChangeLog
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@ -1,5 +1,17 @@
2008-09-19 Alan Modra <amodra@bigpond.net.au>
* write.c (TC_FORCE_RELOCATION_SUB_LOCAL): Heed md_register_arithmetic.
(TC_VALIDATE_FIX_SUB): Likewise.
* config/tc-frv.h (TC_FORCE_RELOCATION_SUB_LOCAL): Likewise.
* config/tc-hppa.h (TC_FORCE_RELOCATION_SUB_LOCAL): Likewise.
* config/tc-mn10300.h (TC_VALIDATE_FIX_SUB): Likewise.
* config/tc-sh.h (TC_VALIDATE_FIX_SUB): Likewise.
(TC_FORCE_RELOCATION_SUB_LOCAL): Likewise.
* config/tc-sh64.h (TC_VALIDATE_FIX_SUB): Likewise.
* config/tc-xtensa.h (TC_VALIDATE_FIX_SUB): Likewise.
* doc/internals.texi (TC_FORCE_RELOCATION_SUB_ABS,
TC_FORCE_RELOCATION_SUB_LOCAL, TC_VALIDATE_FIX_SUB): Show new param.
* write.c (md_register_arithmetic): Define.
(fixup_segment): Adjust TC_FORCE_RELOCATION_SUB_ABS invocation.
Modify error message when registers involved.

2
gas/config/tc-frv.h
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@ -61,7 +61,7 @@ extern int frv_force_relocation (struct fix *);
/* If we simplify subtractions that aren't SUB_SAME or SUB_ABS, we end
up with PCrel fixups, but since we don't have any PCrel relocs, we
crash. Preventing simplification gets us a good, early error. */
#define TC_FORCE_RELOCATION_SUB_LOCAL(fixP) 1
#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) 1
#undef GAS_CGEN_MAX_FIXUPS
#define GAS_CGEN_MAX_FIXUPS 1

2
gas/config/tc-hppa.h
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@ -155,7 +155,7 @@ int hppa_fix_adjustable (struct fix *);
difference expression can't be used between text and data symbols,
or between symbols in different executable modules. */
#define DIFF_EXPR_OK 1
#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX) 1
#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) 1
#define UNDEFINED_DIFFERENCE_OK
#endif

2
gas/config/tc-mn10300.h
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@ -70,7 +70,7 @@ void mn10300_cons_fix_new (fragS *, int, int, expressionS *);
/* We validate subtract arguments within tc_gen_reloc(), so don't
report errors at this point. */
#define TC_VALIDATE_FIX_SUB(FIX) 1
#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

16
gas/config/tc-sh.h
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@ -83,8 +83,9 @@ extern int sh_force_relocation (struct fix *);
|| (sh_relax && SWITCH_TABLE (FIX)))
/* Don't complain when we leave fx_subsy around. */
#define TC_VALIDATE_FIX_SUB(FIX) \
(sh_relax && SWITCH_TABLE (FIX))
#define TC_VALIDATE_FIX_SUB(FIX, SEG) \
((md_register_arithmetic || (SEG) != reg_section) \
&& sh_relax && SWITCH_TABLE (FIX))
#define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section (FIX, SEC)
extern long md_pcrel_from_section (struct fix *, segT);
@ -207,7 +208,9 @@ extern bfd_boolean sh_fix_adjustable (struct fix *);
|| (FIX)->fx_r_type == BFD_RELOC_SH_GOTPC \
|| TC_FORCE_RELOCATION (FIX))
#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX) (sh_relax && SWITCH_TABLE (FIX))
#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) \
((!md_register_arithmetic && (SEG) == reg_section) \
|| (sh_relax && SWITCH_TABLE (FIX)))
/* This keeps the subtracted symbol around, for use by PLT_PCREL
relocs. */
@ -217,9 +220,10 @@ extern bfd_boolean sh_fix_adjustable (struct fix *);
/* Don't complain when we leave fx_subsy around. */
#undef TC_VALIDATE_FIX_SUB
#define TC_VALIDATE_FIX_SUB(FIX) \
((FIX)->fx_r_type == BFD_RELOC_32_PLT_PCREL \
|| (sh_relax && SWITCH_TABLE (FIX)))
#define TC_VALIDATE_FIX_SUB(FIX, SEG) \
((md_register_arithmetic || (SEG) != reg_section) \
&& ((FIX)->fx_r_type == BFD_RELOC_32_PLT_PCREL \
|| (sh_relax && SWITCH_TABLE (FIX))))
#define md_parse_name(name, exprP, mode, nextcharP) \
sh_parse_name ((name), (exprP), (mode), (nextcharP))

9
gas/config/tc-sh64.h
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@ -115,10 +115,11 @@ extern int sh64_target_mach (void);
/* Don't complain when we leave fx_subsy around. */
#undef TC_VALIDATE_FIX_SUB
#define TC_VALIDATE_FIX_SUB(FIX) \
((FIX)->fx_r_type == BFD_RELOC_32_PLT_PCREL \
|| (sh_relax && SWITCH_TABLE (FIX)) \
|| *symbol_get_tc ((FIX)->fx_addsy) != NULL)
#define TC_VALIDATE_FIX_SUB(FIX, SEG) \
((md_register_arithmetic || (SEG) != reg_section) \
&& ((FIX)->fx_r_type == BFD_RELOC_32_PLT_PCREL \
|| (sh_relax && SWITCH_TABLE (FIX)) \
|| *symbol_get_tc ((FIX)->fx_addsy) != NULL))
/* Note the kludge: we want to put back C, and we also want to consume the
expression, since we have handled it ourselves. FIXME: What we really

2
gas/config/tc-xtensa.h
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@ -335,7 +335,7 @@ extern char *xtensa_section_rename (char *);
#define TC_FORCE_RELOCATION(fix) xtensa_force_relocation (fix)
#define TC_FORCE_RELOCATION_SUB_SAME(fix, seg) \
(! SEG_NORMAL (seg) || xtensa_force_relocation (fix))
#define TC_VALIDATE_FIX_SUB(fix) xtensa_validate_fix_sub (fix)
#define TC_VALIDATE_FIX_SUB(fix, seg) xtensa_validate_fix_sub (fix)
#define NO_PSEUDO_DOT xtensa_check_inside_bundle ()
#define tc_canonicalize_symbol_name(s) xtensa_section_rename (s)
#define tc_canonicalize_section_name(s) xtensa_section_rename (s)

6
gas/doc/internals.texi
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@ -1309,17 +1309,17 @@ the subtrahend will be resolved and @code{fx_subsy} set to @code{NULL} for
@w{@code{! SEG_NORMAL (@var{seg}) || TC_FORCE_RELOCATION (@var{fix})}} will
be used.
@item TC_FORCE_RELOCATION_SUB_ABS (@var{fix})
@item TC_FORCE_RELOCATION_SUB_ABS (@var{fix}, @var{seg)
@cindex TC_FORCE_RELOCATION_SUB_ABS
Like @code{TC_FORCE_RELOCATION_SUB_SAME}, but used when the subtrahend is an
absolute symbol. If the macro is undefined a default of @code{0} is used.
@item TC_FORCE_RELOCATION_SUB_LOCAL (@var{fix})
@item TC_FORCE_RELOCATION_SUB_LOCAL (@var{fix}, @var{seg)
@cindex TC_FORCE_RELOCATION_SUB_LOCAL
Like @code{TC_FORCE_RELOCATION_SUB_ABS}, but the subtrahend is a symbol in the
same section as the fixup.
@item TC_VALIDATE_FIX_SUB (@var{fix})
@item TC_VALIDATE_FIX_SUB (@var{fix}, @var{seg})
@cindex TC_VALIDATE_FIX_SUB
This macro is evaluated for any fixup with a @code{fx_subsy} that
@code{fixup_segment} cannot reduce to a number. If the macro returns

19
gas/write.c
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@ -65,20 +65,23 @@
#ifndef TC_FORCE_RELOCATION_SUB_LOCAL
#ifdef DIFF_EXPR_OK
#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX) 0
#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) \
(!md_register_arithmetic && (SEG) == reg_section)
#else
#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX) 1
#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) 1
#endif
#endif
#ifndef TC_VALIDATE_FIX_SUB
#ifdef UNDEFINED_DIFFERENCE_OK
/* The PA needs this for PIC code generation. */
#define TC_VALIDATE_FIX_SUB(FIX) 1
#define TC_VALIDATE_FIX_SUB(FIX, SEG) \
(md_register_arithmetic || (SEG) != reg_section)
#else
#define TC_VALIDATE_FIX_SUB(FIX) \
((FIX)->fx_r_type == BFD_RELOC_GPREL32 \
|| (FIX)->fx_r_type == BFD_RELOC_GPREL16)
#define TC_VALIDATE_FIX_SUB(FIX, SEG) \
((md_register_arithmetic || (SEG) != reg_section) \
&& ((FIX)->fx_r_type == BFD_RELOC_GPREL32 \
|| (FIX)->fx_r_type == BFD_RELOC_GPREL16))
#endif
#endif
@ -936,7 +939,7 @@ fixup_segment (fixS *fixP, segT this_segment)
fixP->fx_subsy = NULL;
}
else if (sub_symbol_segment == this_segment
&& !TC_FORCE_RELOCATION_SUB_LOCAL (fixP))
&& !TC_FORCE_RELOCATION_SUB_LOCAL (fixP, add_symbol_segment))
{
add_number -= S_GET_VALUE (fixP->fx_subsy);
fixP->fx_offset = (add_number + fixP->fx_dot_value
@ -958,7 +961,7 @@ fixup_segment (fixS *fixP, segT this_segment)
fixP->fx_subsy = NULL;
fixP->fx_pcrel = 1;
}
else if (!TC_VALIDATE_FIX_SUB (fixP))
else if (!TC_VALIDATE_FIX_SUB (fixP, add_symbol_segment))
{
if (!md_register_arithmetic
&& (add_symbol_segment == reg_section