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[PATCH] Cleanup value_fetch_lazy's comment and return value
- From: Simon Marchi <simon dot marchi at ericsson dot com>
- To: <gdb-patches at sourceware dot org>
- Cc: Simon Marchi <simon dot marchi at ericsson dot com>
- Date: Fri, 3 Jul 2015 14:04:22 -0400
- Subject: [PATCH] Cleanup value_fetch_lazy's comment and return value
- Authentication-results: sourceware.org; auth=none
The comment for value_fetch_lazy seems outdated. It says that it's only
called from the value_contents and value_contents_all (macros!), which
is not true. Also, the return value seems useless now, despite what the
comment says.
gdb/ChangeLog:
* value.c (value_fetch_lazy): Update comment, change return
value to void.
* value.h (value_fetch_lazy): Change return value to void.
---
gdb/value.c | 17 +++++------------
gdb/value.h | 2 +-
2 files changed, 6 insertions(+), 13 deletions(-)
diff --git a/gdb/value.c b/gdb/value.c
index 86d7d00..a01f390 100644
--- a/gdb/value.c
+++ b/gdb/value.c
@@ -3781,21 +3781,15 @@ value_initialized (struct value *val)
return val->initialized;
}
-/* Called only from the value_contents and value_contents_all()
- macros, if the current data for a variable needs to be loaded into
- value_contents(VAL). Fetches the data from the user's process, and
- clears the lazy flag to indicate that the data in the buffer is
- valid.
+/* Load the actual content of a lazy value. Fetch the data from the
+ user's process and clear the lazy flag to indicate that the data in
+ the buffer is valid.
If the value is zero-length, we avoid calling read_memory, which
would abort. We mark the value as fetched anyway -- all 0 bytes of
- it.
+ it. */
- This function returns a value because it is used in the
- value_contents macro as part of an expression, where a void would
- not work. The value is ignored. */
-
-int
+void
value_fetch_lazy (struct value *val)
{
gdb_assert (value_lazy (val));
@@ -3947,7 +3941,6 @@ value_fetch_lazy (struct value *val)
internal_error (__FILE__, __LINE__, _("Unexpected lazy value type."));
set_value_lazy (val, 0);
- return 0;
}
/* Implementation of the convenience function $_isvoid. */
diff --git a/gdb/value.h b/gdb/value.h
index 957bcd4..7ff6aa8 100644
--- a/gdb/value.h
+++ b/gdb/value.h
@@ -361,7 +361,7 @@ extern const gdb_byte *value_contents_for_printing (struct value *value);
extern const gdb_byte *
value_contents_for_printing_const (const struct value *value);
-extern int value_fetch_lazy (struct value *val);
+extern void value_fetch_lazy (struct value *val);
/* If nonzero, this is the value of a variable which does not actually
exist in the program, at least partially. If the value is lazy,
--
2.1.4