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authorJoel Brobecker <brobecker@gnat.com>2003-12-10 17:40:43 +0000
committerJoel Brobecker <brobecker@gnat.com>2003-12-10 17:40:43 +0000
commit7ae4c3a566beba00e16dd10bb69414ffc214dcbb (patch)
tree6ced00fb4dfffef4e991d205938aa202a1e9483f
parent4249f881bdb61da1be3dc569c5920507a058c3f7 (diff)
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* frame.c (select_frame): Get the current frame PC using
get_frame_address_in_block() instead of get_frame_pc(). * stack.c (get_frame_language): Likewise.
-rw-r--r--gdb/ChangeLog6
-rw-r--r--gdb/frame.c8
-rw-r--r--gdb/stack.c9
3 files changed, 21 insertions, 2 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 1a2c034..0bec025 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,9 @@
+2003-12-10 J. Brobecker <brobecker@gnat.com>
+
+ * frame.c (select_frame): Get the current frame PC using
+ get_frame_address_in_block() instead of get_frame_pc().
+ * stack.c (get_frame_language): Likewise.
+
2003-12-08 Kevin Buettner <kevinb@redhat.com>
* remote.c (remote_open_1, remote_cisco_open): Avoid closing
diff --git a/gdb/frame.c b/gdb/frame.c
index 5dc0705..1d37891 100644
--- a/gdb/frame.c
+++ b/gdb/frame.c
@@ -917,7 +917,13 @@ select_frame (struct frame_info *fi)
source language of this frame, and switch to it if desired. */
if (fi)
{
- s = find_pc_symtab (get_frame_pc (fi));
+ /* We retrieve the frame's symtab by using the frame PC. However
+ we cannot use the frame pc as is, because it usually points to
+ the instruction following the "call", which is sometimes the
+ first instruction of another function. So we rely on
+ get_frame_address_in_block() which provides us with a PC which
+ is guaranteed to be inside the frame's code block. */
+ s = find_pc_symtab (get_frame_address_in_block (fi));
if (s
&& s->language != current_language->la_language
&& s->language != language_unknown
diff --git a/gdb/stack.c b/gdb/stack.c
index 04e6a18..a2b331f 100644
--- a/gdb/stack.c
+++ b/gdb/stack.c
@@ -2036,7 +2036,14 @@ get_frame_language (void)
if (deprecated_selected_frame)
{
- s = find_pc_symtab (get_frame_pc (deprecated_selected_frame));
+ /* We determine the current frame language by looking up its
+ associated symtab. To retrieve this symtab, we use the frame PC.
+ However we cannot use the frame pc as is, because it usually points
+ to the instruction following the "call", which is sometimes the first
+ instruction of another function. So we rely on
+ get_frame_address_in_block(), it provides us with a PC which is
+ guaranteed to be inside the frame's code block. */
+ s = find_pc_symtab (get_frame_address_in_block (deprecated_selected_frame));
if (s)
flang = s->language;
else