reverse the order of relocs in mach-o gas output.

gas:

	* config/obj-macho.c (obj_mach_o_reorder_section_relocs): New.
	* config/obj-macho.h (SET_SECTION_RELOCS): Define.
	(obj_mach_o_reorder_section_relocs): Declare.

gas/testsuite:

	* gas/all/redef2.d: Skip for Darwin.
	* gas/all/redef3.d: Likewise.
	* gas/all/weakref1.d: Likewise.
	* gas/macros/irp.d: Likewise.
	* gas/macros/repeat.d: Likewise.
	* gas/macros/rept.d: Likewise.
	* gas/macros/test2.d: Likewise.
	* gas/macros/vararg.d: Likewise.
	* gas/mach-o/macro-irp.d: New.
	* gas/mach-o/macro-repeat.d: New.
	* gas/mach-o/macro-rept.d: New.
	* gas/mach-o/macro-test2.d: New.
	* gas/mach-o/macro-vararg.d: New.
	* gas/mach-o/redef2.d: New.
	* gas/mach-o/redef3.d: New.

19 files changed, 188 insertions, 2 deletions

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 9d40556..5c3c60a 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,9 @@
+2012-01-13  Tristan Gingold  <gingold@adacore.com>
+
+	* config/obj-macho.c (obj_mach_o_reorder_section_relocs): New.
+	* config/obj-macho.h (SET_SECTION_RELOCS): Define.
+	(obj_mach_o_reorder_section_relocs): Declare.
+
 2012-01-13  Iain Sandoe  <idsandoe@googlemail.com>
 
 	* config/obj-macho.c (obj_mach_o_set_indirect_symbols): Handle
diff --git a/gas/config/obj-macho.c b/gas/config/obj-macho.c
index ddf0988..f0cb43e 100644
--- a/gas/config/obj-macho.c
+++ b/gas/config/obj-macho.c
@@ -1679,6 +1679,23 @@ obj_mach_o_frob_file_after_relocs (void)
   bfd_map_over_sections (stdoutput, obj_mach_o_set_indirect_symbols, (char *) 0);
 }
 
+/* Reverse relocations order to make ld happy.  */
+
+void
+obj_mach_o_reorder_section_relocs (asection *sec, arelent **rels, unsigned int n)
+{
+  unsigned int i;
+  unsigned int max = n / 2;
+
+  for (i = 0; i < max; i++)
+    {
+      arelent *r = rels[i];
+      rels[i] = rels[n - i - 1];
+      rels[n - i - 1] = r;
+    }
+  bfd_set_reloc (stdoutput, sec, rels, n);
+}
+
 /* Support stabs for mach-o.  */
 
 void
diff --git a/gas/config/obj-macho.h b/gas/config/obj-macho.h
index 2fc5cb6..bb8daf9 100644
--- a/gas/config/obj-macho.h
+++ b/gas/config/obj-macho.h
@@ -68,6 +68,11 @@ void obj_mach_o_post_relax_hook (void);
 #define obj_frob_file_after_relocs obj_mach_o_frob_file_after_relocs
 extern void obj_mach_o_frob_file_after_relocs (void);
 
+void obj_mach_o_reorder_section_relocs (asection *, arelent **, unsigned int);
+
+#define SET_SECTION_RELOCS(sec, relocs, n) \
+  obj_mach_o_reorder_section_relocs (sec, relocs, n)
+
 #define EMIT_SECTION_SYMBOLS		0
 
 #define OBJ_PROCESS_STAB(SEG,W,S,T,O,D)	obj_mach_o_process_stab(W,S,T,O,D)
diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog
index 01418cb..ea80694 100644
--- a/gas/testsuite/ChangeLog
+++ b/gas/testsuite/ChangeLog
@@ -1,5 +1,23 @@
 2012-01-13  Iain Sandoe  <idsandoe@googlemail.com>
 
+	* gas/all/redef2.d: Skip for Darwin.
+	* gas/all/redef3.d: Likewise.
+	* gas/all/weakref1.d: Likewise.
+	* gas/macros/irp.d: Likewise.
+	* gas/macros/repeat.d: Likewise.
+	* gas/macros/rept.d: Likewise.
+	* gas/macros/test2.d: Likewise.
+	* gas/macros/vararg.d: Likewise.
+	* gas/mach-o/macro-irp.d: New.
+	* gas/mach-o/macro-repeat.d: New.
+	* gas/mach-o/macro-rept.d: New.
+	* gas/mach-o/macro-test2.d: New.
+	* gas/mach-o/macro-vararg.d: New.
+	* gas/mach-o/redef2.d: New.
+	* gas/mach-o/redef3.d: New.
+
+2012-01-13  Iain Sandoe  <idsandoe@googlemail.com>
+
 	* gas/mach-o/dysymtab-3.d: New.
 	* gas/mach-o/symbols-7.s: New.
 
diff --git a/gas/testsuite/gas/all/redef2.d b/gas/testsuite/gas/all/redef2.d
index 244d33d..c50cd6c 100644
--- a/gas/testsuite/gas/all/redef2.d
+++ b/gas/testsuite/gas/all/redef2.d
@@ -1,5 +1,6 @@
 #objdump: -rs -j .data -j "\$DATA\$"
 #name: .equ redefinitions (2)
+#not-target: *-*-darwin*
 
 .*: .*
 
diff --git a/gas/testsuite/gas/all/redef3.d b/gas/testsuite/gas/all/redef3.d
index 566f9c9..a16fac3 100644
--- a/gas/testsuite/gas/all/redef3.d
+++ b/gas/testsuite/gas/all/redef3.d
@@ -1,6 +1,6 @@
 #objdump: -rsj .data
 #name: .equ redefinitions (3)
-#not-target: arc-*-*
+#not-target: arc-*-* *-*darwin*
 
 .*: .*
 
diff --git a/gas/testsuite/gas/all/weakref1.d b/gas/testsuite/gas/all/weakref1.d
index ee37d97..b44d1fc 100644
--- a/gas/testsuite/gas/all/weakref1.d
+++ b/gas/testsuite/gas/all/weakref1.d
@@ -2,8 +2,9 @@
 #name: weakref tests, relocations
 # ecoff (OSF/alpha) lacks .weak support
 # pdp11 lacks .long
+# darwin (mach-o) reverses the order of relocs.
 # the following must be present in all weakref1*.d
-#not-target: alpha*-*-osf* *-*-ecoff pdp11-*-aout
+#not-target: alpha*-*-osf* *-*-ecoff pdp11-*-aout *-*-darwin*
 
 #...
 RELOCATION RECORDS FOR \[(\.text|\$CODE\$)\]:
diff --git a/gas/testsuite/gas/mach-o/macro-irp.d b/gas/testsuite/gas/mach-o/macro-irp.d
new file mode 100644
index 0000000..c7737fa
--- /dev/null
+++ b/gas/testsuite/gas/mach-o/macro-irp.d
@@ -0,0 +1,14 @@
+#objdump: -r
+#name: macro irp
+#source: ../macros/irp.s
+
+.*: +file format .*
+
+RELOCATION RECORDS FOR .*
+OFFSET[ 	]+TYPE[ 	]+VALUE.*
+0+14[ 	]+[a-zA-Z0-9_]+[ 	]+bar3
+0+10[ 	]+[a-zA-Z0-9_]+[ 	]+bar2
+0+0c[ 	]+[a-zA-Z0-9_]+[ 	]+bar1
+0+08[ 	]+[a-zA-Z0-9_]+[ 	]+foo3
+0+04[ 	]+[a-zA-Z0-9_]+[ 	]+foo2
+0+00[ 	]+[a-zA-Z0-9_]+[ 	]+foo1
diff --git a/gas/testsuite/gas/mach-o/macro-repeat.d b/gas/testsuite/gas/mach-o/macro-repeat.d
new file mode 100644
index 0000000..db215a4
--- /dev/null
+++ b/gas/testsuite/gas/mach-o/macro-repeat.d
@@ -0,0 +1,44 @@
+#objdump: -r
+#name: nested irp/irpc/rept
+#source: ../macros/repeat.s
+
+.*: +file format .*
+
+RELOCATION RECORDS FOR .*
+OFFSET[ 	]+TYPE[ 	]+VALUE.*
+0+8c[ 	]+[a-zA-Z0-9_]+[ 	]+rept_rept
+0+88[ 	]+[a-zA-Z0-9_]+[ 	]+rept_rept
+0+84[ 	]+[a-zA-Z0-9_]+[ 	]+rept_rept
+0+80[ 	]+[a-zA-Z0-9_]+[ 	]+rept_rept
+0+7c[ 	]+[a-zA-Z0-9_]+[ 	]+rept_irpc_8
+0+78[ 	]+[a-zA-Z0-9_]+[ 	]+rept_irpc_9
+0+74[ 	]+[a-zA-Z0-9_]+[ 	]+rept_irpc_8
+0+70[ 	]+[a-zA-Z0-9_]+[ 	]+rept_irpc_9
+0+6c[ 	]+[a-zA-Z0-9_]+[ 	]+rept_irp_8
+0+68[ 	]+[a-zA-Z0-9_]+[ 	]+rept_irp_9
+0+64[ 	]+[a-zA-Z0-9_]+[ 	]+rept_irp_8
+0+60[ 	]+[a-zA-Z0-9_]+[ 	]+rept_irp_9
+0+5c[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_rept_2
+0+58[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_rept_2
+0+54[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_rept_1
+0+50[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_rept_1
+0+4c[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_irpc_28
+0+48[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_irpc_29
+0+44[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_irpc_18
+0+40[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_irpc_19
+0+3c[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_irp_28
+0+38[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_irp_29
+0+34[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_irp_18
+0+30[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_irp_19
+0+2c[ 	]+[a-zA-Z0-9_]+[ 	]+irp_rept_2
+0+28[ 	]+[a-zA-Z0-9_]+[ 	]+irp_rept_2
+0+24[ 	]+[a-zA-Z0-9_]+[ 	]+irp_rept_1
+0+20[ 	]+[a-zA-Z0-9_]+[ 	]+irp_rept_1
+0+1c[ 	]+[a-zA-Z0-9_]+[ 	]+irp_irpc_28
+0+18[ 	]+[a-zA-Z0-9_]+[ 	]+irp_irpc_29
+0+14[ 	]+[a-zA-Z0-9_]+[ 	]+irp_irpc_18
+0+10[ 	]+[a-zA-Z0-9_]+[ 	]+irp_irpc_19
+0+0c[ 	]+[a-zA-Z0-9_]+[ 	]+irp_irp_28
+0+08[ 	]+[a-zA-Z0-9_]+[ 	]+irp_irp_29
+0+04[ 	]+[a-zA-Z0-9_]+[ 	]+irp_irp_18
+0+00[ 	]+[a-zA-Z0-9_]+[ 	]+irp_irp_19
diff --git a/gas/testsuite/gas/mach-o/macro-rept.d b/gas/testsuite/gas/mach-o/macro-rept.d
new file mode 100644
index 0000000..7ac212a
--- /dev/null
+++ b/gas/testsuite/gas/mach-o/macro-rept.d
@@ -0,0 +1,11 @@
+#objdump: -r
+#name: macro rept
+#source: ../macros/rept.s
+
+.*: +file format .*
+
+RELOCATION RECORDS FOR .*
+OFFSET[ 	]+TYPE[ 	]+VALUE.*
+0+08[ 	]+[a-zA-Z0-9_]+[ 	]+foo1
+0+04[ 	]+[a-zA-Z0-9_]+[ 	]+foo1
+0+00[ 	]+[a-zA-Z0-9_]+[ 	]+foo1
diff --git a/gas/testsuite/gas/mach-o/macro-test2.d b/gas/testsuite/gas/mach-o/macro-test2.d
new file mode 100644
index 0000000..30a2b2f
--- /dev/null
+++ b/gas/testsuite/gas/mach-o/macro-test2.d
@@ -0,0 +1,11 @@
+#objdump: -r
+#name: macro test 2
+#source: ../macros/test2.s
+
+.*: +file format .*
+
+RELOCATION RECORDS FOR .*
+OFFSET[ 	]+TYPE[ 	]+VALUE.*
+0+08[ 	]+[a-zA-Z0-9_]+[ 	]+foo3
+0+04[ 	]+[a-zA-Z0-9_]+[ 	]+foo2
+0+00[ 	]+[a-zA-Z0-9_]+[ 	]+foo1
diff --git a/gas/testsuite/gas/mach-o/macro-vararg.d b/gas/testsuite/gas/mach-o/macro-vararg.d
new file mode 100644
index 0000000..da6c0af
--- /dev/null
+++ b/gas/testsuite/gas/mach-o/macro-vararg.d
@@ -0,0 +1,14 @@
+#objdump: -r
+#name: macro vararg
+#source: ../macros/vararg.s
+
+.*: +file format .*
+
+RELOCATION RECORDS FOR .*
+OFFSET[ 	]+TYPE[ 	]+VALUE.*
+0+14[ 	]+[a-zA-Z0-9_]+[ 	]+foo6
+0+10[ 	]+[a-zA-Z0-9_]+[ 	]+foo5
+0+0c[ 	]+[a-zA-Z0-9_]+[ 	]+foo4
+0+08[ 	]+[a-zA-Z0-9_]+[ 	]+foo3
+0+04[ 	]+[a-zA-Z0-9_]+[ 	]+foo2
+0+00[ 	]+[a-zA-Z0-9_]+[ 	]+foo1
diff --git a/gas/testsuite/gas/mach-o/redef2.d b/gas/testsuite/gas/mach-o/redef2.d
new file mode 100644
index 0000000..5e76d50
--- /dev/null
+++ b/gas/testsuite/gas/mach-o/redef2.d
@@ -0,0 +1,17 @@
+#objdump: -rs -j .data -j "\$DATA\$"
+#name: .equ redefinitions (2)
+# identical to ../all, we just need to reverse the relocs.
+#source: ../all/redef2.s
+
+.*: .*
+
+RELOCATION RECORDS FOR .*
+.*
+0+10.*(sym|(\.data|\$DATA\$)(\+0x0+10)?)
+0+08.*xtrn
+0+00.*(here|\.data|\$DATA\$)
+#...
+Contents of section (\.data|\$DATA\$):
+ 0000 00000000 11111111 00000000 22222222[ 	]+................[ 	]*
+ 0010 [01]00000[01]0 .*
+#pass
diff --git a/gas/testsuite/gas/mach-o/redef3.d b/gas/testsuite/gas/mach-o/redef3.d
new file mode 100644
index 0000000..3f61a3f
--- /dev/null
+++ b/gas/testsuite/gas/mach-o/redef3.d
@@ -0,0 +1,17 @@
+#objdump: -rsj .data
+#name: .equ redefinitions (3)
+#identical to ../all/redef, we just need to reverse the relocs.
+#source: ../all/redef3.s
+
+.*: .*
+
+RELOCATION RECORDS FOR .*
+.*
+0+10.*sym
+0+08.*xtrn
+0+00.*(here|\.data)
+#...
+Contents of section \.data:
+ 0000 00000000 11111111 00000000 22222222[ 	]+................[ 	]*
+ 0010 00000000 .*
+#pass
diff --git a/gas/testsuite/gas/macros/irp.d b/gas/testsuite/gas/macros/irp.d
index e6d7bcf..2c07f8e 100644
--- a/gas/testsuite/gas/macros/irp.d
+++ b/gas/testsuite/gas/macros/irp.d
@@ -1,5 +1,7 @@
 #objdump: -r
 #name: macro irp
+#darwin (mach-o) reverses relocs.
+#not-target: *-*-darwin*
 
 .*: +file format .*
 
diff --git a/gas/testsuite/gas/macros/repeat.d b/gas/testsuite/gas/macros/repeat.d
index 272e441..1e6e422 100644
--- a/gas/testsuite/gas/macros/repeat.d
+++ b/gas/testsuite/gas/macros/repeat.d
@@ -1,5 +1,7 @@
 #objdump: -r
 #name: nested irp/irpc/rept
+# darwin (mach-o) reverse relocs.
+#not-target: *-*-darwin*
 
 .*: +file format .*
 
diff --git a/gas/testsuite/gas/macros/rept.d b/gas/testsuite/gas/macros/rept.d
index 0022d5f..df2ed96 100644
--- a/gas/testsuite/gas/macros/rept.d
+++ b/gas/testsuite/gas/macros/rept.d
@@ -1,5 +1,7 @@
 #objdump: -r
 #name: macro rept
+#darwin (mach-o) reverses relocs.
+#not-target: *-*-darwin*
 
 .*: +file format .*
 
diff --git a/gas/testsuite/gas/macros/test2.d b/gas/testsuite/gas/macros/test2.d
index 9a7d414..e5041cd 100644
--- a/gas/testsuite/gas/macros/test2.d
+++ b/gas/testsuite/gas/macros/test2.d
@@ -1,5 +1,7 @@
 #objdump: -r
 #name: macro test 2
+# darwin(mach-o) reverses the order of relocs.
+#not-target: *-*-darwin*
 
 .*: +file format .*
 
diff --git a/gas/testsuite/gas/macros/vararg.d b/gas/testsuite/gas/macros/vararg.d
index 4b943fd..94c1511 100644
--- a/gas/testsuite/gas/macros/vararg.d
+++ b/gas/testsuite/gas/macros/vararg.d
@@ -1,5 +1,7 @@
 #objdump: -r
 #name: macro vararg
+# darwin (mach-o) reverses relocs.
+#not-target: *-*-darwin*
 
 .*: +file format .*