From 38bcc89d48a20af944fe0d51eff3980f7dc8a88e Mon Sep 17 00:00:00 2001
From: Simon Marchi <simon.marchi@ericsson.com>
Date: Mon, 15 Dec 2014 11:38:03 -0500
Subject: Fix build with Python 3.4 (PR python/16784)
The type of the function pointer PyOS_ReadlineFunctionPointer (part of the
Python C API), which we use, slightly changed starting with Python 3.4. The
signature went from
PyAPI_DATA(char) *(*PyOS_ReadlineFunctionPointer)(FILE *, FILE *, char *);
to
PyAPI_DATA(char) *(*PyOS_ReadlineFunctionPointer)(FILE *, FILE *, const char *);
The parameter that changed is the prompt text.
This commits adjust gdb accordingly by making the prompt_arg parameter
const, as well as the fallouts of that. I needed to rework how
annotations are added to the prompt, since the it is now const. If
annotations are enabled, it will make a copy of the prompt overwrite the
prompt variable that is used throughout the function. Otherwise, no copy
is done and the original prompt_arg value is passed.
I changed the signature of deprecated_readline_hook. I would've changed any
user of it, but it seems like nothing is using it,
Built-tested with python 2.7.x, 3.3.y and 3.4.z.
gdb/ChangeLog:
* defs.h (gdb_readline): Constify argument.
(gdb_readline_wrapper): Same.
(command_line_input): Same.
(deprecated_readline_hook): Same.
* top.c (deprecated_readline_hook): Same.
(gdb_readline): Same.
(gdb_readline_wrapper): Same.
(command_line_input): Constify argument. Pass prompt to
called functions instead of local_prompt, overwriting prompt
if using annotations.
* event-top.h (display_gdb_prompt): Constify argument.
* event-top.c (display_gdb_prompt): Same.
* python/py-gdb-readline.c (gdbpy_readline_wrapper): Constify
argument if building with Python 3.4 and up.
Signed-off-by: Simon Marchi <simon.marchi@ericsson.com>
---
gdb/python/py-gdb-readline.c | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'gdb/python/py-gdb-readline.c')
diff --git a/gdb/python/py-gdb-readline.c b/gdb/python/py-gdb-readline.c
index d98a196..ab419bc 100644
--- a/gdb/python/py-gdb-readline.c
+++ b/gdb/python/py-gdb-readline.c
@@ -29,7 +29,11 @@
static char *
gdbpy_readline_wrapper (FILE *sys_stdin, FILE *sys_stdout,
+#if PY_MAJOR_VERSION == 3 && PY_MINOR_VERSION >= 4
+ const char *prompt)
+#else
char *prompt)
+#endif
{
int n;
char *p = NULL, *q;
--
cgit v1.1