[PATCH 3/7] Handle Windows drives in rbreak paths

[Hannes Domani <ssbssa@yahoo.de>]

Fixes this testsuite fail on Windows:
FAIL: gdb.base/fullpath-expand.exp: rbreak XXX/fullpath-expand-func.c:func

If the found colon is actually part of a Windows drive, look for another.

gdb/ChangeLog:

2020-05-25  Hannes Domani  <ssbssa@yahoo.de>

	* symtab.c (rbreak_command): Ignore Windows drive colon.
---
 gdb/symtab.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/gdb/symtab.c b/gdb/symtab.c
index dc771c5679..d399ccef9b 100644
--- a/gdb/symtab.c
+++ b/gdb/symtab.c
@@ -5210,6 +5210,11 @@ rbreak_command (const char *regexp, int from_tty)
     {
       const char *colon = strchr (regexp, ':');
 
+      /* Ignore the colon if it is part of a Windows drive.  */
+      if (HAS_DRIVE_SPEC (regexp)
+	  && (regexp[2] == '/' || regexp[2] == '\\'))
+	colon = strchr (STRIP_DRIVE_SPEC (regexp), ':');
+
       if (colon && *(colon + 1) != ':')
 	{
 	  int colon_index;
-- 
2.26.2