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* write.c (TC_FX_SIZE_SLACK): Define. 

(write_relocs): Reinstate check for fixup within frag.
	* config/tc-bfin.h (TC_FX_SIZE_SLACK): Define.
	* config/tc-h8300.h (TC_FX_SIZE_SLACK): Define.
	* config/tc-mmix.h (TC_FX_SIZE_SLACK): Define.
	* config/tc-sh.h (TC_FX_SIZE_SLACK): Define.
	* config/tc-xstormy16.h (TC_FX_SIZE_SLACK): Define.
This commit is contained in:
Alan Modra 2007-02-17 23:13:49 +00:00
parent 4b5d35eef6
commit d31f0f6d41
7 changed files with 59 additions and 8 deletions
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10
gas/ChangeLog
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@ -1,3 +1,13 @@
2007-02-18 Alan Modra <amodra@bigpond.net.au>
* write.c (TC_FX_SIZE_SLACK): Define.
(write_relocs): Reinstate check for fixup within frag.
* config/tc-bfin.h (TC_FX_SIZE_SLACK): Define.
* config/tc-h8300.h (TC_FX_SIZE_SLACK): Define.
* config/tc-mmix.h (TC_FX_SIZE_SLACK): Define.
* config/tc-sh.h (TC_FX_SIZE_SLACK): Define.
* config/tc-xstormy16.h (TC_FX_SIZE_SLACK): Define.
2007-02-17 Mark Mitchell <mark@codesourcery.com>
Nathan Sidwell <nathan@codesourcery.com>
Vladimir Prus <vladimir@codesourcery.com

3
gas/config/tc-bfin.h
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@ -75,4 +75,7 @@ extern long md_pcrel_from_section PARAMS ((struct fix *, segT));
/* Values passed to md_apply_fix3 don't include symbol values. */
#define MD_APPLY_SYM_VALUE(FIX) 0
/* This target is buggy, and sets fix size too large. */
#define TC_FX_SIZE_SLACK(FIX) 2
/* end of tc-bfin.h */

3
gas/config/tc-h8300.h
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@ -86,3 +86,6 @@ extern int Nmode;
extern int SXmode;
#define md_operand(x)
/* This target is buggy, and sets fix size too large. */
#define TC_FX_SIZE_SLACK(FIX) 1

3
gas/config/tc-mmix.h
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@ -221,3 +221,6 @@ extern void mmix_md_do_align (int, char *, int, int);
sequences sprinkled in, we can get unaligned DWARF2 offsets, so let's
explicitly say one byte. */
#define DWARF2_LINE_MIN_INSN_LENGTH 1
/* This target is buggy, and sets fix size too large. */
#define TC_FX_SIZE_SLACK(FIX) 6

5
gas/config/tc-sh.h
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@ -81,6 +81,11 @@ extern int sh_force_relocation (struct fix *);
#define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section (FIX, SEC)
extern long md_pcrel_from_section (struct fix *, segT);
/* SH_COUNT relocs are allowed outside of frag.
The target is also buggy and sets fix size too large for other relocs. */
#define TC_FX_SIZE_SLACK(FIX) \
((FIX)->fx_r_type == BFD_RELOC_SH_COUNT ? -1 : 2)
#define IGNORE_NONSTANDARD_ESCAPES
#define LISTING_HEADER \

3
gas/config/tc-xstormy16.h
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@ -63,3 +63,6 @@ extern void xstormy16_cons_fix_new (fragS *f, int, int, expressionS *);
/* Minimum instruction is two bytes. */
#define DWARF2_LINE_MIN_INSN_LENGTH 2
/* This target is buggy, and sets fix size too large. */
#define TC_FX_SIZE_SLACK(FIX) 2

40
gas/write.c
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@ -97,6 +97,16 @@
#define TC_FAKE_LABEL(NAME) (strcmp ((NAME), FAKE_LABEL_NAME) == 0)
#endif
/* Positive values of TC_FX_SIZE_SLACK allow a target to define
fixups that far past the end of a frag. Having such fixups
is of course most most likely a bug in setting fx_size correctly.
A negative value disables the fixup check entirely, which is
appropriate for something like the Renesas / SuperH SH_COUNT
reloc. */
#ifndef TC_FX_SIZE_SLACK
#define TC_FX_SIZE_SLACK(FIX) 0
#endif
/* Used to control final evaluation of expressions. */
int finalize_syms = 0;
@ -1017,6 +1027,8 @@ write_relocs (bfd *abfd, asection *sec, void *xxx ATTRIBUTE_UNUSED)
{
arelent *reloc;
bfd_reloc_status_type s;
int fx_size, slack;
offsetT loc;
if (fixp->fx_done)
{
@ -1031,12 +1043,15 @@ write_relocs (bfd *abfd, asection *sec, void *xxx ATTRIBUTE_UNUSED)
continue;
}
/*
This test is triggered inappropriately for the SH:
if (fixp->fx_where + fixp->fx_size
> fixp->fx_frag->fr_fix + fixp->fx_frag->fr_offset)
abort ();
*/
fx_size = fixp->fx_size;
slack = TC_FX_SIZE_SLACK (fixp);
if (slack > 0)
fx_size = fx_size > slack ? fx_size - slack : 0;
loc = fixp->fx_where + fx_size;
if (slack >= 0
&& loc > fixp->fx_frag->fr_fix + fixp->fx_frag->fr_offset)
as_bad_where (fixp->fx_file, fixp->fx_line,
_("internal error: fixup not contained within frag"));
s = bfd_install_relocation (stdoutput, reloc,
fixp->fx_frag->fr_literal,
@ -1071,6 +1086,8 @@ write_relocs (bfd *abfd, asection *sec, void *xxx ATTRIBUTE_UNUSED)
arelent **reloc;
bfd_reloc_status_type s;
int j;
int fx_size, slack;
offsetT loc;
if (fixp->fx_done)
{
@ -1085,10 +1102,17 @@ write_relocs (bfd *abfd, asection *sec, void *xxx ATTRIBUTE_UNUSED)
relocs[i++] = reloc[j];
assert (i <= n);
}
if (fixp->fx_where + fixp->fx_size
> fixp->fx_frag->fr_fix + fixp->fx_frag->fr_offset)
fx_size = fixp->fx_size;
slack = TC_FX_SIZE_SLACK (fixp);
if (slack > 0)
fx_size = fx_size > slack ? fx_size - slack : 0;
loc = fixp->fx_where + fx_size;
if (slack >= 0
&& loc > fixp->fx_frag->fr_fix + fixp->fx_frag->fr_offset)
as_bad_where (fixp->fx_file, fixp->fx_line,
_("internal error: fixup not contained within frag"));
for (j = 0; reloc[j]; j++)
{
s = bfd_install_relocation (stdoutput, reloc[j],