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authorRaymond Danks <raymond@edanks.com>2006-04-18 01:27:03 +0000
committerOpenEmbedded Project <openembedded-devel@lists.openembedded.org>2006-04-18 01:27:03 +0000
commit49fca2d04df1029b9d5db30691ea670ae2db4d2c (patch)
tree51dcfe957b227f744dd2b6efc620479dea2f48ba /packages/dosfstools/files/alignment_hack.patch
parentd6912a787bfc8392a54778ca65290c356ce22e58 (diff)
dosfstools: Compile fixes. Add functionality for creating MSDOS image
files from OE.
Diffstat (limited to 'packages/dosfstools/files/alignment_hack.patch')
-rw-r--r--packages/dosfstools/files/alignment_hack.patch34
1 files changed, 34 insertions, 0 deletions
diff --git a/packages/dosfstools/files/alignment_hack.patch b/packages/dosfstools/files/alignment_hack.patch
new file mode 100644
index 0000000000..e15060a6fe
--- /dev/null
+++ b/packages/dosfstools/files/alignment_hack.patch
@@ -0,0 +1,34 @@
+The problem is that unsigned char[2] is
+guranteed to be 8Bit aligned on arm
+but unsigned short is/needs to be 16bit aligned
+the union { unsigned short; unsigned char[2] } trick
+didn't work so no we use the alpha hack.
+
+memcpy into an 16bit aligned
+
+ -zecke
+
+
+--- dosfstools/dosfsck/boot.c.orig 2003-05-15 19:32:23.000000000 +0200
++++ dosfstools/dosfsck/boot.c 2003-06-13 17:44:25.000000000 +0200
+@@ -36,17 +36,15 @@
+ { 0xff, "5.25\" 320k floppy 2s/40tr/8sec" },
+ };
+
+-#if defined __alpha || defined __ia64__ || defined __s390x__ || defined __x86_64__ || defined __ppc64__
++
+ /* Unaligned fields must first be copied byte-wise */
+ #define GET_UNALIGNED_W(f) \
+ ({ \
+ unsigned short __v; \
+ memcpy( &__v, &f, sizeof(__v) ); \
+- CF_LE_W( *(unsigned short *)&f ); \
++ CF_LE_W( *(unsigned short *)&__v ); \
+ })
+-#else
+-#define GET_UNALIGNED_W(f) CF_LE_W( *(unsigned short *)&f )
+-#endif
++
+
+
+ static char *get_media_descr( unsigned char media )