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[PATCH] Adding bit position to ptype
- From: lin zuojian <manjian2006 at gmail dot com>
- To: gdb-patches at sourceware dot org
- Date: Wed, 18 Jun 2014 11:13:08 +0800
- Subject: [PATCH] Adding bit position to ptype
- Authentication-results: sourceware.org; auth=none
Hi, I am having trouble looking up field offsets when reading disassembled text.
So I add an extra field to ptype:
(gdb) ptype WebCore::FrameLoader
type = class WebCore::FrameLoader {
private:
WebCore::Frame *m_frame bitpos: 0;
WebCore::FrameLoaderClient *m_client bitpos: 32;
WebCore::PolicyChecker m_policyChecker bitpos: 64;
WebCore::HistoryController m_history bitpos: 3264;
WebCore::ResourceLoadNotifier m_notifer bitpos: 3552;
WebCore::SubframeLoader m_subframeLoader bitpos: 3584;
WebCore::FrameLoaderStateMachine m_stateMachine bitpos: 3680;
WebCore::IconController m_icon bitpos: 3712;
...
That helps me a lot to understand what "ldr r0, [r4, #408]" means.
---
gdb/c-typeprint.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/gdb/c-typeprint.c b/gdb/c-typeprint.c
index 4edc9ec..9fbbc36 100644
--- a/gdb/c-typeprint.c
+++ b/gdb/c-typeprint.c
@@ -1110,6 +1110,12 @@ c_type_print_base (struct type *type, struct ui_file *stream,
fprintf_filtered (stream, " : %d",
TYPE_FIELD_BITSIZE (type, i));
}
+ else if (!field_is_static (&TYPE_FIELD (type, i)))
+ {
+ /* print the bit pos. */
+ fprintf_filtered (stream, " bitpos: %d",
+ TYPE_FIELD_BITPOS (type, i));
+ }
fprintf_filtered (stream, ";\n");
}
--
1.9.1