Hello.
Following patch changes behavior in pretty_print_string, where all non-printable
characters are encoded as \x%x. Currently, when some non-printable characters
are directly
printed to a dump file stream. That makes it complicated to read a dump file
for instance
via a Python script.
Patch can bootstrap on ppc64le-redhat-linux and survives regression tests.
Ready to be installed?
Martin
>From 0241ee4a366d3c4912def45770945b17c528f920 Mon Sep 17 00:00:00 2001
From: marxin <mli...@suse.cz>
Date: Thu, 8 Dec 2016 11:22:44 +0100
Subject: [PATCH] Escape non-printable chars in strings.
gcc/ChangeLog:
2016-12-08 Martin Liska <mli...@suse.cz>
* tree-pretty-print.c (pretty_print_string): Escape non-printable
chars in strings.
---
gcc/tree-pretty-print.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/gcc/tree-pretty-print.c b/gcc/tree-pretty-print.c
index 95db710..5b3e23e 100644
--- a/gcc/tree-pretty-print.c
+++ b/gcc/tree-pretty-print.c
@@ -3869,7 +3869,14 @@ pretty_print_string (pretty_printer *pp, const char *str)
break;
default:
- pp_character (pp, str[0]);
+ if (!ISPRINT (str[0]))
+ {
+ char buf[5];
+ sprintf (buf, "\\x%x", (unsigned char)str[0]);
+ pp_string (pp, buf);
+ }
+ else
+ pp_character (pp, str[0]);
break;
}
str++;
--
2.10.2
