This patch, extracted from a larger change on gomp-4_0-branch, expands
a comment documenting struct switchstr in gcc.c.
Committed.
2015-08-25 Thomas Schwinge <tho...@codesourcery.com>
Joseph Myers <jos...@codesourcery.com>
* gcc.c (struct switchstr): Expand comment.
Index: gcc.c
===================================================================
--- gcc.c (revision 227171)
+++ gcc.c (working copy)
@@ -3068,10 +3068,15 @@
SWITCH_LIVE to indicate this switch is true in a conditional spec.
SWITCH_FALSE to indicate this switch is overridden by a later switch.
SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
- SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
+ SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored.
+ SWITCH_KEEP_FOR_GCC to indicate that this switch, otherwise ignored,
+ should be included in COLLECT_GCC_OPTIONS.
in all do_spec calls afterwards. Used for %<S from self specs.
- The `validated' field is nonzero if any spec has looked at this switch;
- if it remains zero at the end of the run, it must be meaningless. */
+ The `known' field describes whether this is an internal switch.
+ The `validated' field describes whether any spec has looked at this switch;
+ if it remains false at the end of the run, the switch must be meaningless.
+ The `ordering' field is used to temporarily mark switches that have to be
+ kept in a specific order. */
#define SWITCH_LIVE (1 << 0)
#define SWITCH_FALSE (1 << 1)
--
Joseph S. Myers
jos...@codesourcery.com
