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Fix unintitialised TIC6X data

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MALLOC_PERTURB_=1 results in the following fails due to uninitialised
exindx data:

FAIL: C6X unwinding directives 1 (little endian)
FAIL: C6X unwinding directives 2 (big endian)
FAIL: C6X unwinding directives 3 (segment change)
FAIL: ld-tic6x/unwind-1
FAIL: ld-tic6x/unwind-2
FAIL: ld-tic6x/unwind-3
FAIL: ld-tic6x/unwind-4
FAIL: ld-tic6x/unwind-6

	* config/tc-tic6x.c (s_tic6x_ehtype): Clear after frag_more.
	(tic6x_output_exidx_entry): Likewise.
	(md_apply_fix): Simplify 1 byte md_number_to_chars.
This commit is contained in:
Alan Modra 2014-06-16 10:56:56 +09:30
parent 6e210b4129
commit 7e9def1e93
2 changed files with 9 additions and 1 deletions
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6
gas/ChangeLog
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@ -1,3 +1,9 @@
2014-06-16 Alan Modra <amodra@gmail.com>
* config/tc-tic6x.c (s_tic6x_ehtype): Clear after frag_more.
(tic6x_output_exidx_entry): Likewise.
(md_apply_fix): Simplify 1 byte md_number_to_chars.
2014-06-16 Alan Modra <amodra@gmail.com>
* config/tc-tic54x.c (tic54x_mlib): Don't write garbage past

4
gas/config/tc-tic6x.c
View File

@ -536,6 +536,7 @@ s_tic6x_ehtype (int ignored ATTRIBUTE_UNUSED)
}
p = frag_more (4);
memset (p, 0, 4);
fix_new_exp (frag_now, p - frag_now->fr_literal, 4,
&exp, 0, BFD_RELOC_C6000_EHTYPE);
@ -3823,7 +3824,7 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
if (value < -0x80 || value > 0xff)
as_bad_where (fixP->fx_file, fixP->fx_line,
_("value too large for 1-byte field"));
md_number_to_chars (buf, value, 1);
*buf = value;
}
break;
@ -4835,6 +4836,7 @@ tic6x_output_exidx_entry (void)
record_alignment (now_seg, 2);
ptr = frag_more (8);
memset (ptr, 0, 8);
where = frag_now_fix () - 8;
/* Self relative offset of the function start. */