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re PR target/37283 (Cannot build crtbegin.o for ARM)

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PR target/37283
	* opts.c (decode_options): Handle more relationships among
	unit-at-a-time, toplevel-reorder, and section-anchors.

Co-Authored-By: Samuel Tardieu <sam@rfc1149.net>

From-SVN: r140040
This commit is contained in:
Janis Johnson 2008-09-05 17:13:52 +00:00 • committed by Janis Johnson
parent 57f59a4580
commit 93a4f5e06e
2 changed files with 29 additions and 8 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2008-09-05 Janis Johnson <janis187@us.ibm.com>
Samuel Tardieu <sam@rfc1149.net>
PR target/37283
* opts.c (decode_options): Handle more relationships among
unit-at-a-time, toplevel-reorder, and section-anchors.
2008-09-05 David Daney <ddaney@avtrex.com>
* doc/install.texi (--enable-reduced-reflection): Document new option.

30
gcc/opts.c
View file

@ -1008,21 +1008,35 @@ decode_options (unsigned int argc, const char **argv)
handle_options (argc, argv, lang_mask);
/* -fno-unit-at-a-time and -fno-toplevel-reorder handling. */
/* Handle related options for unit-at-a-time, toplevel-reorder, and
section-anchors. */
if (!flag_unit_at_a_time)
{
if (flag_section_anchors == 1)
error ("Section anchors must be disabled when unit-at-a-time "
"is disabled.");
flag_section_anchors = 0;
if (flag_toplevel_reorder == 1)
error ("Toplevel reorder must be disabled when unit-at-a-time "
"is disabled.");
flag_toplevel_reorder = 0;
}
else if (!optimize && flag_toplevel_reorder == 2)
/* We disable toplevel reordering at -O0 to disable transformations that
might be surprising to end users and to get -fno-toplevel-reorder
tested, but we keep section anchors. */
flag_toplevel_reorder = 0;
else if (!flag_toplevel_reorder)
if (!optimize)
{
/* Unless the user has asked for section anchors, we disable toplevel
reordering at -O0 to disable transformations that might be surprising
to end users and to get -fno-toplevel-reorder tested. */
if (flag_toplevel_reorder == 2 && flag_section_anchors != 1)
{
flag_toplevel_reorder = 0;
flag_section_anchors = 0;
}
}
if (!flag_toplevel_reorder)
{
if (flag_section_anchors == 1)
error ("section anchors must be disabled when toplevel reorder is disabled");
error ("section anchors must be disabled when toplevel reorder"
" is disabled");
flag_section_anchors = 0;
}