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authorTom Tromey <tom@tromey.com>2018-02-14 11:12:17 -0700
committerTom Tromey <tom@tromey.com>2018-03-14 09:44:33 -0600
commitb8c2339b2f46d4885b933b832fc5b37c7ca101a6 (patch)
tree58f253f8bc6c9571867c638dd71daff548ea5436 /gdb/printcmd.c
parent80ae639d3cc4f1e83f1ad48686f87417c06ca6dc (diff)
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Allow - in %p for printf
PR cli/19918 points out that a printf format like "%-5p" will cause a gdb crash. The bug is problem is that printf_pointer doesn't take the "-" flag into account. gdb/ChangeLog 2018-03-14 Tom Tromey <tom@tromey.com> PR cli/19918: * printcmd.c (printf_pointer): Allow "-" in format. gdb/testsuite/ChangeLog 2018-03-14 Tom Tromey <tom@tromey.com> PR cli/19918: * gdb.base/printcmds.exp (test_printf): Add printf test using '-' flag.
Diffstat (limited to 'gdb/printcmd.c')
-rw-r--r--gdb/printcmd.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/gdb/printcmd.c b/gdb/printcmd.c
index 13b967f..17c67ee 100644
--- a/gdb/printcmd.c
+++ b/gdb/printcmd.c
@@ -2399,8 +2399,9 @@ printf_pointer (struct ui_file *stream, const char *format,
if (val != 0)
*fmt_p++ = '#';
- /* Copy any width. */
- while (*p >= '0' && *p < '9')
+ /* Copy any width or flags. Only the "-" flag is valid for pointers
+ -- see the format_pieces constructor. */
+ while (*p == '-' || (*p >= '0' && *p < '9'))
*fmt_p++ = *p++;
gdb_assert (*p == 'p' && *(p + 1) == '\0');