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[PATCH 4/8] Implement unconditional_branch_address method for x86-64 and i386
- From: Kevin Buettner <kevinb at redhat dot com>
- To: gdb-patches at sourceware dot org
- Date: Wed, 19 Aug 2015 00:06:29 -0700
- Subject: [PATCH 4/8] Implement unconditional_branch_address method for x86-64 and i386
- Authentication-results: sourceware.org; auth=none
- References: <20150818235334 dot 1afb0c85 at pinnacle dot lan>
Implement unconditional_branch_address method for x86-64 and i386.
gdb/ChangeLog:
* i386-tdep.c (i386_unconditional_branch_address): New function.
(i386_gdbarch_init): Register i386_unconditional_branch_address.
---
gdb/i386-tdep.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c
index 9d52d4a..60cd93e 100644
--- a/gdb/i386-tdep.c
+++ b/gdb/i386-tdep.c
@@ -8237,6 +8237,19 @@ i386_validate_tdesc_p (struct gdbarch_tdep *tdep,
return valid_p;
}
+/* Implement the unconditional_branch_address gdbarch method. */
+
+static CORE_ADDR
+i386_unconditional_branch_address (struct gdbarch *gdbarch, CORE_ADDR pc)
+{
+ CORE_ADDR new_pc = i386_follow_jump (gdbarch, pc);
+
+ if (new_pc == pc)
+ return 0;
+ else
+ return new_pc;
+}
+
static struct gdbarch *
i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
@@ -8582,6 +8595,10 @@ i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_fast_tracepoint_valid_at (gdbarch,
i386_fast_tracepoint_valid_at);
+ /* Unconditional Branch. */
+ set_gdbarch_unconditional_branch_address (gdbarch,
+ i386_unconditional_branch_address);
+
return gdbarch;
}