[build] Fix building with newer binutils

Newer versions of the GNU assembler (observed with binutils 2.41) will
complain about the ".arch i386" in files assembled with "as --64",
with the message "Error: 64bit mode not supported on 'i386'".

In files such as stack.S that contain no instructions to be assembled,
the ".arch i386" is redundant and may be removed entirely.

In the remaining files, fix by moving ".arch i386" below the relevant
".code16" or ".code32" directive, so that the assembler is no longer
expecting 64-bit instructions to be used by the time that the ".arch
i386" directive is encountered.

Reported-by: Ali Mustakim <alim@forwardcomputers.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>

24 files changed, 22 insertions, 19 deletions

diff --git a/src/arch/i386/core/setjmp.S b/src/arch/i386/core/setjmp.S
index e0bbb7ef8..cbb5e7138 100644
--- a/src/arch/i386/core/setjmp.S
+++ b/src/arch/i386/core/setjmp.S
@@ -2,8 +2,8 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
 
 	.section ".note.GNU-stack", "", @progbits
 	.text
-	.arch i386
 	.code32
+	.arch i386
 
 	/* Must match jmp_buf structure layout */
 	.struct	0
diff --git a/src/arch/i386/tests/gdbstub_test.S b/src/arch/i386/tests/gdbstub_test.S
index e0c9e6c9a..e44c13c2d 100644
--- a/src/arch/i386/tests/gdbstub_test.S
+++ b/src/arch/i386/tests/gdbstub_test.S
@@ -1,4 +1,5 @@
 	.section ".note.GNU-stack", "", @progbits
+	.code32
 	.arch i386
 
 	.section ".data", "aw", @progbits
diff --git a/src/arch/x86/core/patch_cf.S b/src/arch/x86/core/patch_cf.S
index ebf628769..62f19e45f 100644
--- a/src/arch/x86/core/patch_cf.S
+++ b/src/arch/x86/core/patch_cf.S
@@ -23,8 +23,8 @@
 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
 
 	.section ".note.GNU-stack", "", @progbits
-	.arch i386
 	.code16
+	.arch i386
 
 /****************************************************************************
  * Set/clear CF on the stack as appropriate, assumes stack is as it should
diff --git a/src/arch/x86/core/stack.S b/src/arch/x86/core/stack.S
index 493453473..1bcaf18f8 100644
--- a/src/arch/x86/core/stack.S
+++ b/src/arch/x86/core/stack.S
@@ -1,7 +1,6 @@
 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
 
 	.section ".note.GNU-stack", "", @progbits
-	.arch i386
 
 #ifdef __x86_64__
 #define STACK_SIZE 8192
diff --git a/src/arch/x86/core/stack16.S b/src/arch/x86/core/stack16.S
index d3949a557..622887eab 100644
--- a/src/arch/x86/core/stack16.S
+++ b/src/arch/x86/core/stack16.S
@@ -1,7 +1,6 @@
 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
 
 	.section ".note.GNU-stack", "", @progbits
-	.arch i386
 
 /****************************************************************************
  * Internal stack
diff --git a/src/arch/x86/drivers/net/undiisr.S b/src/arch/x86/drivers/net/undiisr.S
index aa8991d77..8ba5c5354 100644
--- a/src/arch/x86/drivers/net/undiisr.S
+++ b/src/arch/x86/drivers/net/undiisr.S
@@ -11,8 +11,8 @@ FILE_LICENCE ( GPL2_OR_LATER )
 #define PIC2_ICR 0xa0
 	
 	.section ".note.GNU-stack", "", @progbits
-	.arch i386
 	.code16
+	.arch i386
 
 	.section ".text16", "ax", @progbits
 	.globl undiisr
diff --git a/src/arch/x86/interface/pcbios/e820mangler.S b/src/arch/x86/interface/pcbios/e820mangler.S
index 40f84c702..ef5dc2754 100644
--- a/src/arch/x86/interface/pcbios/e820mangler.S
+++ b/src/arch/x86/interface/pcbios/e820mangler.S
@@ -24,8 +24,8 @@
 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
 
 	.section ".note.GNU-stack", "", @progbits
-	.arch i386
 	.code16
+	.arch i386
 
 #define SMAP 0x534d4150
 
diff --git a/src/arch/x86/interface/pxe/pxe_entry.S b/src/arch/x86/interface/pxe/pxe_entry.S
index 354dd1b35..3899e1bcc 100644
--- a/src/arch/x86/interface/pxe/pxe_entry.S
+++ b/src/arch/x86/interface/pxe/pxe_entry.S
@@ -27,6 +27,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
 #include <librm.h>
 
 	.section ".note.GNU-stack", "", @progbits
+	.code16
 	.arch i386
 
 /****************************************************************************
diff --git a/src/arch/x86/prefix/bootpart.S b/src/arch/x86/prefix/bootpart.S
index cf75ff793..7b9920fdb 100644
--- a/src/arch/x86/prefix/bootpart.S
+++ b/src/arch/x86/prefix/bootpart.S
@@ -6,9 +6,9 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
 #define STACK_SIZE	0x2000
 	
 	.section ".note.GNU-stack", "", @progbits
+	.code16
 	.arch i386
 	.section ".prefix", "awx", @progbits
-	.code16
 
 /*
  * Find active partition
diff --git a/src/arch/x86/prefix/dskprefix.S b/src/arch/x86/prefix/dskprefix.S
index f9d301956..e8e55ef1d 100644
--- a/src/arch/x86/prefix/dskprefix.S
+++ b/src/arch/x86/prefix/dskprefix.S
@@ -26,9 +26,9 @@ FILE_LICENCE ( GPL2_ONLY )
 
 	.section ".note.GNU-stack", "", @progbits
 	.org	0
+	.code16
 	.arch i386
 	.section ".prefix", "ax", @progbits
-	.code16
 	.globl	_dsk_start
 _dsk_start:
 
diff --git a/src/arch/x86/prefix/exeprefix.S b/src/arch/x86/prefix/exeprefix.S
index 86333489a..98ed6c5fb 100644
--- a/src/arch/x86/prefix/exeprefix.S
+++ b/src/arch/x86/prefix/exeprefix.S
@@ -37,9 +37,9 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
 #define PSP_CMDLINE_START 0x81
 
 	.section ".note.GNU-stack", "", @progbits
+	.code16
 	.arch i386
 	.org 0
-	.code16
 	.section ".prefix", "awx", @progbits
 
 signature:
diff --git a/src/arch/x86/prefix/hdprefix.S b/src/arch/x86/prefix/hdprefix.S
index 1bbf72dd2..3133dec6c 100644
--- a/src/arch/x86/prefix/hdprefix.S
+++ b/src/arch/x86/prefix/hdprefix.S
@@ -3,9 +3,9 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
 #include <librm.h>
 
 	.section ".note.GNU-stack", "", @progbits
+	.code16
 	.arch i386
 	.section ".prefix", "awx", @progbits
-	.code16
 	.org 0
 	.globl	_hd_start
 _hd_start:
diff --git a/src/arch/x86/prefix/libprefix.S b/src/arch/x86/prefix/libprefix.S
index 380e471dd..b08a5782f 100644
--- a/src/arch/x86/prefix/libprefix.S
+++ b/src/arch/x86/prefix/libprefix.S
@@ -27,6 +27,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
 #include <librm.h>
 
 	.section ".note.GNU-stack", "", @progbits
+	.code16
 	.arch i386
 
 /* Image compression enabled */
diff --git a/src/arch/x86/prefix/lkrnprefix.S b/src/arch/x86/prefix/lkrnprefix.S
index 9f1a2f09b..c8a04c9d7 100644
--- a/src/arch/x86/prefix/lkrnprefix.S
+++ b/src/arch/x86/prefix/lkrnprefix.S
@@ -5,8 +5,8 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
 #define BZI_LOAD_HIGH_ADDR 0x100000
 
 	.section ".note.GNU-stack", "", @progbits
-	.arch i386
 	.code16
+	.arch i386
 	.section ".prefix", "ax", @progbits
 	.globl	_lkrn_start
 _lkrn_start:
diff --git a/src/arch/x86/prefix/mbr.S b/src/arch/x86/prefix/mbr.S
index b37eed714..5e0ed5ddb 100644
--- a/src/arch/x86/prefix/mbr.S
+++ b/src/arch/x86/prefix/mbr.S
@@ -1,9 +1,9 @@
 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
 
 	.section ".note.GNU-stack", "", @progbits
+	.code16
 	.arch i386
 	.section ".prefix", "awx", @progbits
-	.code16
 	.org 0
 
 	.globl mbr
diff --git a/src/arch/x86/prefix/mromprefix.S b/src/arch/x86/prefix/mromprefix.S
index 543fd006a..d05278e64 100644
--- a/src/arch/x86/prefix/mromprefix.S
+++ b/src/arch/x86/prefix/mromprefix.S
@@ -42,8 +42,8 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
 #include "pciromprefix.S"
 
 	.section ".note.GNU-stack", "", @progbits
-	.arch i386
 	.code16
+	.arch i386
 
 /* Obtain access to payload by exposing the expansion ROM BAR at the
  * address currently used by a suitably large memory BAR on the same
diff --git a/src/arch/x86/prefix/nbiprefix.S b/src/arch/x86/prefix/nbiprefix.S
index 0a74ca718..bbacd4b7b 100644
--- a/src/arch/x86/prefix/nbiprefix.S
+++ b/src/arch/x86/prefix/nbiprefix.S
@@ -3,8 +3,8 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
 #include <librm.h>
 
 	.section ".note.GNU-stack", "", @progbits
-	.arch i386
 	.code16
+	.arch i386
 	.section ".prefix", "ax", @progbits
 	.org 0
 
diff --git a/src/arch/x86/prefix/nullprefix.S b/src/arch/x86/prefix/nullprefix.S
index bbc697fd2..426f1f2ce 100644
--- a/src/arch/x86/prefix/nullprefix.S
+++ b/src/arch/x86/prefix/nullprefix.S
@@ -2,10 +2,10 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
 
 	.section ".note.GNU-stack", "", @progbits
 	.org	0
+	.code16
 	.arch i386
 
 	.section ".prefix", "ax", @progbits
-	.code16
 _prefix:
 
 	.section ".text16", "ax", @progbits
diff --git a/src/arch/x86/prefix/pxeprefix.S b/src/arch/x86/prefix/pxeprefix.S
index c62a50117..5181ef618 100644
--- a/src/arch/x86/prefix/pxeprefix.S
+++ b/src/arch/x86/prefix/pxeprefix.S
@@ -12,9 +12,9 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
 #define PXE_HACK_EB54			0x0001
 
 	.section ".note.GNU-stack", "", @progbits
+	.code16
 	.arch i386
 	.org 0
-	.code16
 
 #include <librm.h>
 #include <undi.h>
diff --git a/src/arch/x86/prefix/rawprefix.S b/src/arch/x86/prefix/rawprefix.S
index d97b3b512..962c97187 100644
--- a/src/arch/x86/prefix/rawprefix.S
+++ b/src/arch/x86/prefix/rawprefix.S
@@ -9,9 +9,9 @@
 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
 
 	.section ".note.GNU-stack", "", @progbits
+	.code16
 	.arch i386
 	.org 0
-	.code16
 
 #include <librm.h>
 
diff --git a/src/arch/x86/prefix/unlzma.S b/src/arch/x86/prefix/unlzma.S
index 4059090b9..e4d1e190d 100644
--- a/src/arch/x86/prefix/unlzma.S
+++ b/src/arch/x86/prefix/unlzma.S
@@ -44,6 +44,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
  */
 
 	.section ".note.GNU-stack", "", @progbits
+	.code32
 	.arch i486
 	.section ".prefix.lib", "ax", @progbits
 
diff --git a/src/arch/x86/prefix/usbdisk.S b/src/arch/x86/prefix/usbdisk.S
index b8fc5e950..11ab6a46a 100644
--- a/src/arch/x86/prefix/usbdisk.S
+++ b/src/arch/x86/prefix/usbdisk.S
@@ -3,9 +3,9 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
 #include <config/console.h>
 
 	.section ".note.GNU-stack", "", @progbits
+	.code16
 	.arch i386
 	.section ".prefix", "awx", @progbits
-	.code16
 	.org 0
 
 #include "mbr.S"
diff --git a/src/arch/x86/transitions/liba20.S b/src/arch/x86/transitions/liba20.S
index 6c1bac672..971cff226 100644
--- a/src/arch/x86/transitions/liba20.S
+++ b/src/arch/x86/transitions/liba20.S
@@ -25,6 +25,7 @@
 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
 
 	.section ".note.GNU-stack", "", @progbits
+	.code16
 	.arch i386
 
 /****************************************************************************
diff --git a/src/arch/x86/transitions/libkir.S b/src/arch/x86/transitions/libkir.S
index 5909654c2..2c4dc948b 100644
--- a/src/arch/x86/transitions/libkir.S
+++ b/src/arch/x86/transitions/libkir.S
@@ -32,9 +32,9 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
 #define BOCHSBP xchgw %bx, %bx
 
 	.section ".note.GNU-stack", "", @progbits
+	.code16
 	.arch i386
 	.section ".text16", "awx", @progbits
-	.code16
 	
 /****************************************************************************
  * init_libkir (real-mode or 16:xx protected-mode far call)