From: Jason Eckhardt <jle@rice.edu>
Date: Wed, 6 Aug 2003 23:59:36 +0000 (+0000)
Subject: gas:
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=e4c808f2d67640c158bef94067fd955f3935611b;p=pf3gnuchains%2Fpf3gnuchains3x.git

gas:
2003-08-06  Jason Eckhardt  <jle@rice.edu>

        * config/tc-i860.c (i860_handle_align): New function.
        * config/tc-i860.h (HANDLE_ALIGN): Define macro.
        (MAX_MEM_FOR_RS_ALIGN_CODE): Define macro.

gas/testsuite:
2003-08-06  Jason Eckhardt  <jle@rice.edu>

        * gas/i860/dir-align01.{s,d}: New files.
        * gas/i860/i860.exp: Execute the new test above.
---

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 8e1356c074..bbb0d78b0b 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,5 +1,11 @@
 2003-08-06  Jason Eckhardt  <jle@rice.edu>
 
+	* config/tc-i860.c (i860_handle_align): New function.
+	* config/tc-i860.h (HANDLE_ALIGN): Define macro.
+	(MAX_MEM_FOR_RS_ALIGN_CODE): Define macro.
+
+2003-08-06  Jason Eckhardt  <jle@rice.edu>
+
 	* config/tc-i860.c (i860_process_insn): Check that instructions
 	with their dual-bit set are 8-byte aligned.
 
diff --git a/gas/config/tc-i860.c b/gas/config/tc-i860.c
index d170b7047c..b281d523df 100644
--- a/gas/config/tc-i860.c
+++ b/gas/config/tc-i860.c
@@ -1462,3 +1462,36 @@ tc_gen_reloc (asection *section ATTRIBUTE_UNUSED,
     }
   return reloc;
 }
+
+/* This is called from HANDLE_ALIGN in write.c.  Fill in the contents
+   of an rs_align_code fragment.  */
+
+void
+i860_handle_align (fragS *fragp)
+{
+  /* Instructions are always stored little-endian on the i860.  */
+  static const unsigned char le_nop[] = { 0x00, 0x00, 0x00, 0xA0 };
+
+  int bytes;
+  char *p;
+
+  if (fragp->fr_type != rs_align_code)
+    return;
+
+  bytes = fragp->fr_next->fr_address - fragp->fr_address - fragp->fr_fix;
+  p = fragp->fr_literal + fragp->fr_fix;
+
+  /* Make sure we are on a 4-byte boundary, in case someone has been
+     putting data into a text section.  */
+  if (bytes & 3)
+    {
+      int fix = bytes & 3;
+      memset (p, 0, fix);
+      p += fix;
+      fragp->fr_fix += fix;
+    }
+
+  memcpy (p, le_nop, 4);
+  fragp->fr_var = 4;
+}
+
diff --git a/gas/config/tc-i860.h b/gas/config/tc-i860.h
index 72a5b6a52b..c5c39b45c0 100644
--- a/gas/config/tc-i860.h
+++ b/gas/config/tc-i860.h
@@ -86,4 +86,10 @@ extern int target_big_endian;
    visible symbols can be overridden.  */
 #define EXTERN_FORCE_RELOC 0
 
+/* Bits for filling in rs_align_code fragments with NOPs.  */
+extern void i860_handle_align (struct frag *);
+#define HANDLE_ALIGN(fragp) i860_handle_align (fragp)
+
+#define MAX_MEM_FOR_RS_ALIGN_CODE  (3 + 4 + 4)
+
 #endif /* TC_I860 */
diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog
index 30591b7228..51a1239619 100644
--- a/gas/testsuite/ChangeLog
+++ b/gas/testsuite/ChangeLog
@@ -1,5 +1,10 @@
 2003-08-06  Jason Eckhardt  <jle@rice.edu>
 
+	* gas/i860/dir-align01.{s,d}: New files.
+	* gas/i860/i860.exp: Execute the new test above.
+
+2003-08-06  Jason Eckhardt  <jle@rice.edu>
+
 	* gas/i860/dual02-err.l: Update expected error message.
 	* gas/i860/README.i860: Remove dual02-err from known failure list.
 
diff --git a/gas/testsuite/gas/i860/dir-align01.d b/gas/testsuite/gas/i860/dir-align01.d
new file mode 100644
index 0000000000..bc4f677074
--- /dev/null
+++ b/gas/testsuite/gas/i860/dir-align01.d
@@ -0,0 +1,17 @@
+#as:
+#objdump: -d
+#name: i860 dir-align01
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+00000000 <\.text>:
+   0:	00 20 a6 90 	adds	%r4,%r5,%r6
+   4:	00 00 00 a0 	shl	%r0,%r0,%r0
+   8:	00 00 00 a0 	shl	%r0,%r0,%r0
+   c:	00 00 00 a0 	shl	%r0,%r0,%r0
+  10:	00 50 6c 91 	adds	%r10,%r11,%r12
+  14:	a1 b1 1a 4b 	fmlow.dd	%f22,%f24,%f26
+  18:	30 74 f0 49 	pfadd.ss	%f14,%f15,%f16
+  1c:	b0 8c 54 4a 	pfadd.sd	%f17,%f18,%f20
diff --git a/gas/testsuite/gas/i860/dir-align01.s b/gas/testsuite/gas/i860/dir-align01.s
new file mode 100644
index 0000000000..595eb3fcff
--- /dev/null
+++ b/gas/testsuite/gas/i860/dir-align01.s
@@ -0,0 +1,11 @@
+# Test that .text section alignments use nops (0xA0000000) to fill
+# rather than 0.
+	.text
+	adds	%r4,%r5,%r6
+	.align 16
+	adds	%r10,%r11,%r12
+        fmlow.dd        %f22,%f24,%f26
+        pfadd.ss        %f14,%f15,%f16
+        pfadd.sd        %f17,%f18,%f20
+
+
diff --git a/gas/testsuite/gas/i860/i860.exp b/gas/testsuite/gas/i860/i860.exp
index 601995b81f..3a1ceed5c4 100644
--- a/gas/testsuite/gas/i860/i860.exp
+++ b/gas/testsuite/gas/i860/i860.exp
@@ -17,6 +17,7 @@ if [istarget i860-*-*] {
     run_dump_test "bitwise"
     run_dump_test "branch"
     run_dump_test "bte"
+    run_dump_test "dir-align01"
     run_dump_test "dir-intel01"
     run_dump_test "dir-intel02"
     run_list_test "dir-intel03-err" ""