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[PATCH] Prologue not set properly for binaries compiled with LLVM compiler (Bug #14419)
- From: KARTHIKVENKATESH BHAT <kv dot bhat at samsung dot com>
- To: gdb-patches at sourceware dot org
- Date: Tue, 25 Sep 2012 13:45:56 +0000 (GMT)
- Subject: [PATCH] Prologue not set properly for binaries compiled with LLVM compiler (Bug #14419)
- Dlp-filter: Pass
- Msgkey: 20120925133542199@kv.bhat
- Reply-to: kv dot bhat at samsung dot com
Hi,
Please find the fix for Bug #14419 (http://sourceware.org/bugzilla/show_bug.cgi?id=14419). Prologue not set properly in case the binary is compiled with LLVM compiler.
Clang similar to gcc guarantees a line note before and after the prologue.
Extending GDB to support binaries compiled with LLVM so that prologue_end is set properly.
Index: gdb/ChangeLog
===================================================================
RCS file: /cvs/src/src/gdb/ChangeLog,v
retrieving revision 1.14697
diff -u -p -r1.14697 ChangeLog
--- gdb/ChangeLog 25 Sep 2012 12:48:52 -0000 1.14697
+++ gdb/ChangeLog 25 Sep 2012 13:34:52 -0000
@@ -1,3 +1,7 @@
+2012-09-25 Karthik Bhat <kv.bhat@samsung.com>
+
+ * alpha-tdep.c (arm_skip_prologue): Extending support for LLVM compiler.
+
2012-09-25 Siddhesh Poyarekar <siddhesh@redhat.com>
* ada-valprint.c (ada_val_print_1): Eliminate single-use
Index: gdb/arm-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/arm-tdep.c,v
retrieving revision 1.367
diff -u -p -r1.367 arm-tdep.c
--- gdb/arm-tdep.c 22 Aug 2012 19:47:56 -0000 1.367
+++ gdb/arm-tdep.c 25 Sep 2012 13:34:54 -0000
@@ -1400,7 +1400,7 @@ arm_skip_prologue (struct gdbarch *gdbar
if (post_prologue_pc
&& (s == NULL
|| s->producer == NULL
- || strncmp (s->producer, "GNU ", sizeof ("GNU ") - 1) == 0))
+ || strncmp (s->producer, "GNU ", sizeof ("GNU ") - 1) == 0 || strncmp (s->producer, "clang ", sizeof ("clang ") - 1) == 0))
return post_prologue_pc;
if (post_prologue_pc != 0)
Thanks
Karthik