https://sourceware.org/bugzilla/show_bug.cgi?id=22737
Oleg Endo <olegendo at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |nickc at redhat dot com
--- Comment #1 from Oleg Endo <olegendo at gcc dot gnu.org> ---
In the problematic .s file, there is a single occurrence of the magic sequence
"?:" that rx_start_line triggers on:
.ascii "\377\026\310\037h\"\320d\240?:\341O\332\016\214\266\306\234."
The function does not handle the \" escape sequence.
The following fixes it:
diff --git a/gas/config/tc-rx.c b/gas/config/tc-rx.c
index 8e49ddd..df761b4 100644
--- a/gas/config/tc-rx.c
+++ b/gas/config/tc-rx.c
@@ -2681,6 +2681,7 @@ rx_start_line (void)
int in_single_quote = 0;
int done = 0;
char * p = input_line_pointer;
+ char prev_char = 0;
/* Scan the line looking for question marks. Skip past quote enclosed
regions. */
do
@@ -2693,7 +2694,9 @@ rx_start_line (void)
break;
case '"':
- in_double_quote = ! in_double_quote;
+ /* Handle escaped double quote \" inside a string. */
+ if (prev_char != '\\')
+ in_double_quote = ! in_double_quote;
break;
case '\'':
@@ -2722,6 +2725,7 @@ rx_start_line (void)
break;
}
+ prev_char = *p;
p ++;
}
while (! done);
--
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