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diff --git a/media/libtheora/lib/arm/armbits.s b/media/libtheora/lib/arm/armbits.s
--- a/media/libtheora/lib/arm/armbits.s
+++ b/media/libtheora/lib/arm/armbits.s
@@ -12,16 +12,22 @@
;
; function:
; last mod: $Id: armbits.s 17481 2010-10-03 22:49:42Z tterribe $
;
;********************************************************************
AREA |.text|, CODE, READONLY
+ ; Explicitly specifying alignment here because some versions of
+ ; gas don't align code correctly. See
+ ; http://lists.gnu.org/archive/html/bug-binutils/2011-06/msg00199.html
+ ; https://bugzilla.mozilla.org/show_bug.cgi?id=920992
+ ALIGN
+
EXPORT oc_pack_read_arm
EXPORT oc_pack_read1_arm
EXPORT oc_huff_token_decode_arm
oc_pack_read1_arm PROC
; r0 = oc_pack_buf *_b
ADD r12,r0,#8
LDMIA r12,{r2,r3} ; r2 = window
diff --git a/media/libtheora/lib/arm/armfrag.s b/media/libtheora/lib/arm/armfrag.s
--- a/media/libtheora/lib/arm/armfrag.s
+++ b/media/libtheora/lib/arm/armfrag.s
@@ -11,16 +11,22 @@
;********************************************************************
; Original implementation:
; Copyright (C) 2009 Robin Watts for Pinknoise Productions Ltd
; last mod: $Id: armfrag.s 17481 2010-10-03 22:49:42Z tterribe $
;********************************************************************
AREA |.text|, CODE, READONLY
+ ; Explicitly specifying alignment here because some versions of
+ ; gas don't align code correctly. See
+ ; http://lists.gnu.org/archive/html/bug-binutils/2011-06/msg00199.html
+ ; https://bugzilla.mozilla.org/show_bug.cgi?id=920992
+ ALIGN
+
GET armopts.s
; Vanilla ARM v4 versions
EXPORT oc_frag_copy_list_arm
EXPORT oc_frag_recon_intra_arm
EXPORT oc_frag_recon_inter_arm
EXPORT oc_frag_recon_inter2_arm
diff --git a/media/libtheora/lib/arm/armidct.s b/media/libtheora/lib/arm/armidct.s
--- a/media/libtheora/lib/arm/armidct.s
+++ b/media/libtheora/lib/arm/armidct.s
@@ -11,16 +11,22 @@
;********************************************************************
; Original implementation:
; Copyright (C) 2009 Robin Watts for Pinknoise Productions Ltd
; last mod: $Id: armidct.s 17481 2010-10-03 22:49:42Z tterribe $
;********************************************************************
AREA |.text|, CODE, READONLY
+ ; Explicitly specifying alignment here because some versions of
+ ; gas don't align code correctly. See
+ ; http://lists.gnu.org/archive/html/bug-binutils/2011-06/msg00199.html
+ ; https://bugzilla.mozilla.org/show_bug.cgi?id=920992
+ ALIGN
+
GET armopts.s
EXPORT oc_idct8x8_1_arm
EXPORT oc_idct8x8_arm
oc_idct8x8_1_arm PROC
; r0 = ogg_int16_t *_y
; r1 = ogg_uint16_t _dc
diff --git a/media/libtheora/lib/arm/armloop.s b/media/libtheora/lib/arm/armloop.s
--- a/media/libtheora/lib/arm/armloop.s
+++ b/media/libtheora/lib/arm/armloop.s
@@ -11,16 +11,22 @@
;********************************************************************
; Original implementation:
; Copyright (C) 2009 Robin Watts for Pinknoise Productions Ltd
; last mod: $Id: armloop.s 17481 2010-10-03 22:49:42Z tterribe $
;********************************************************************
AREA |.text|, CODE, READONLY
+ ; Explicitly specifying alignment here because some versions of
+ ; gas don't align code correctly. See
+ ; http://lists.gnu.org/archive/html/bug-binutils/2011-06/msg00199.html
+ ; https://bugzilla.mozilla.org/show_bug.cgi?id=920992
+ ALIGN
+
GET armopts.s
EXPORT oc_loop_filter_frag_rows_arm
; Which bit this is depends on the order of packing within a bitfield.
; Hopefully that doesn't change among any of the relevant compilers.
OC_FRAG_CODED_FLAG * 1
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