From af3ecb4a35ff9fd57662514fefcfced14893bbbe Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@redhat.com>
Date: Tue, 29 Mar 2011 18:16:16 +0000
Subject: PR 12610 * config/tc-alpha.c (s_alpha_align): Don't auto-align a
 previous label; zap alpha_insn_label.

---
 gas/ChangeLog                          |  6 ++++++
 gas/config/tc-alpha.c                  |  3 ++-
 gas/config/tc-avr.c                    | 17 +++++++++++++++++
 gas/config/tc-avr.h                    | 13 +++++++++++++
 gas/testsuite/gas/alpha/auto-align-1.d |  6 ++++++
 gas/testsuite/gas/alpha/auto-align-1.s |  7 +++++++
 6 files changed, 51 insertions(+), 1 deletion(-)
 create mode 100644 gas/testsuite/gas/alpha/auto-align-1.d
 create mode 100644 gas/testsuite/gas/alpha/auto-align-1.s

(limited to 'gas')

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 4275767..d61c9526 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,9 @@
+2011-03-29  Richard Henderson  <rth@redhat.com>
+
+	PR 12610
+	* config/tc-alpha.c (s_alpha_align): Don't auto-align a previous
+	label; zap alpha_insn_label.
+
 2011-03-29  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* config/tc-i386.c (handle_quad): Properly handle multiple
diff --git a/gas/config/tc-alpha.c b/gas/config/tc-alpha.c
index d1de6f9..5c1c73e 100644
--- a/gas/config/tc-alpha.c
+++ b/gas/config/tc-alpha.c
@@ -5081,12 +5081,13 @@ s_alpha_align (int ignore ATTRIBUTE_UNUSED)
   if (align != 0)
     {
       alpha_auto_align_on = 1;
-      alpha_align (align, pfill, alpha_insn_label, 1);
+      alpha_align (align, pfill, NULL, 1);
     }
   else
     {
       alpha_auto_align_on = 0;
     }
+  alpha_insn_label = NULL;
 
   demand_empty_rest_of_line ();
 }
diff --git a/gas/config/tc-avr.c b/gas/config/tc-avr.c
index ef8cf93..98fc0f5 100644
--- a/gas/config/tc-avr.c
+++ b/gas/config/tc-avr.c
@@ -24,6 +24,8 @@
 #include "as.h"
 #include "safe-ctype.h"
 #include "subsegs.h"
+#include "dw2gencfi.h"
+
 
 struct avr_opcodes_s
 {
@@ -1543,3 +1545,18 @@ avr_cons_fix_new (fragS *frag,
       exp_mod_pm = 0;
     }
 }
+
+void
+tc_cfi_frame_initial_instructions (void)
+{
+  /* AVR6 pushes 3 bytes for calls.  */
+  int return_size = (avr_mcu->mach == bfd_mach_avr6 ? 3 : 2);
+
+  /* The CFA is the caller's stack location before the call insn.  */
+  /* Note that the stack pointer is dwarf register number 32.  */
+  cfi_add_CFA_def_cfa (32, return_size);
+
+  /* Note that AVR consistently uses post-decrement, which means that things
+     do not line up the same way as for targers that use pre-decrement.  */
+  cfi_add_CFA_offset (DWARF2_DEFAULT_RETURN_COLUMN, 1-return_size);
+}
diff --git a/gas/config/tc-avr.h b/gas/config/tc-avr.h
index b976d5a..777a9df 100644
--- a/gas/config/tc-avr.h
+++ b/gas/config/tc-avr.h
@@ -153,3 +153,16 @@ extern long md_pcrel_from_section (struct fix *, segT);
 
 /* 32 bits pseudo-addresses are used on AVR.  */
 #define DWARF2_ADDR_SIZE(bfd) 4
+
+/* Enable cfi directives.  */
+#define TARGET_USE_CFIPOP 1
+
+/* The stack grows down, and is only byte aligned.  */
+#define DWARF2_CIE_DATA_ALIGNMENT -1
+
+/* Define the column that represents the PC.  */
+#define DWARF2_DEFAULT_RETURN_COLUMN  36
+
+/* Define a hook to setup initial CFI state.  */
+extern void tc_cfi_frame_initial_instructions (void);
+#define tc_cfi_frame_initial_instructions tc_cfi_frame_initial_instructions
diff --git a/gas/testsuite/gas/alpha/auto-align-1.d b/gas/testsuite/gas/alpha/auto-align-1.d
new file mode 100644
index 0000000..971f117
--- /dev/null
+++ b/gas/testsuite/gas/alpha/auto-align-1.d
@@ -0,0 +1,6 @@
+#objdump: -s -j .data
+#name: alpha auto-align-1
+
+.*:     file format *
+Contents of section .data:
+ 0000 04000000 .*
diff --git a/gas/testsuite/gas/alpha/auto-align-1.s b/gas/testsuite/gas/alpha/auto-align-1.s
new file mode 100644
index 0000000..0b088c2
--- /dev/null
+++ b/gas/testsuite/gas/alpha/auto-align-1.s
@@ -0,0 +1,7 @@
+.text
+	.align	4
+$B:	 unop
+$E:	.align	4
+	fnop
+.data
+	.long	$E - $B
-- 
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