diff options
Diffstat (limited to 'package/multimedia/libmms')
| -rw-r--r-- | package/multimedia/libmms/libmms-prevent-unaligned-dereferences.patch | 84 | ||||
| -rw-r--r-- | package/multimedia/libmms/libmms.mk | 4 |
2 files changed, 86 insertions, 2 deletions
diff --git a/package/multimedia/libmms/libmms-prevent-unaligned-dereferences.patch b/package/multimedia/libmms/libmms-prevent-unaligned-dereferences.patch new file mode 100644 index 000000000..9c606eb29 --- /dev/null +++ b/package/multimedia/libmms/libmms-prevent-unaligned-dereferences.patch @@ -0,0 +1,84 @@ +From 4fd16633a8c379971425f7fd482152f163b09158 Mon Sep 17 00:00:00 2001 +From: Paul Burton <Paul.Burton@imgtec.com> +Date: Fri, 17 Sep 2010 14:08:57 +0100 +Subject: [PATCH] Endianness macros should not dereference unaligned pointers + +The LE_*/BE_* macros previously worked by casting the pointer passed to them to a pointer to the correct integer type, then dereferencing it. This will not work on architectures which don't allow unaligned data access. Instead, access one byte at a time and shift to form the value. +--- + src/bswap.h | 59 +++++++++++++++++++++++++++++++++++++++++++---------------- + 1 files changed, 43 insertions(+), 16 deletions(-) + +diff --git a/src/bswap.h b/src/bswap.h +index b731da7..59e8716 100644 +--- a/src/bswap.h ++++ b/src/bswap.h +@@ -21,23 +21,50 @@ + */ + + +-/* Go cheap now, will rip out glib later. *Sigh* */ +-#include <glib.h> +- +-/* NOTE: +- * Now, to clear up confusion: LE_XX means "from LE to native, XX bits wide" +- * I know it's not very clear naming (tell me about it, I +- * misinterpreted in first version and caused bad nasty bug, *sigh*), +- * but that's inherited code, will clean up as things go +- * Oh, and one more thing -- they take *pointers*, not actual ints +- */ ++#include <stdint.h> ++ ++#define SWAP_ENDIAN_16(val) \ ++ (val[1] | (val[0] << 8)) ++#define SWAP_ENDIAN_32(val) \ ++ (val[3] | (val[2] << 8) | (val[1] << 16) | (val[0] << 24)) ++#define SWAP_ENDIAN_64(val) \ ++ (val[7] | (val[6] << 8) | (val[5] << 16) | (val[4] << 24) | \ ++ ((uint64_t)val[3] << 32) | ((uint64_t)val[2] << 40) | \ ++ ((uint64_t)val[1] << 48) | ((uint64_t)val[0] << 56)) ++ ++#define SAME_ENDIAN_16(val) \ ++ (val[0] | (val[1] << 8)) ++#define SAME_ENDIAN_32(val) \ ++ (val[0] | (val[1] << 8) | (val[2] << 16) | (val[3] << 24)) ++#define SAME_ENDIAN_64(val) \ ++ (val[0] | (val[1] << 8) | (val[2] << 16) | (val[3] << 24) | \ ++ ((uint64_t)val[4] << 32) | ((uint64_t)val[5] << 40) | \ ++ ((uint64_t)val[6] << 48) | ((uint64_t)val[7] << 56)) ++ ++#ifndef WORDS_BIGENDIAN ++ ++/* Little endian */ ++ ++#define LE_16(val) SAME_ENDIAN_16(((uint8_t *)(val))) ++#define LE_32(val) SAME_ENDIAN_32(((uint8_t *)(val))) ++#define LE_64(val) SAME_ENDIAN_64(((uint8_t *)(val))) ++#define BE_16(val) SWAP_ENDIAN_16(((uint8_t *)(val))) ++#define BE_32(val) SWAP_ENDIAN_32(((uint8_t *)(val))) ++#define BE_64(val) SWAP_ENDIAN_64(((uint8_t *)(val))) ++ ++#elif WORDS_BIGENDIAN == 1 ++ ++/* Big endian */ + +-#define LE_16(val) (GINT16_FROM_LE (*((u_int16_t*)(val)))) +-#define BE_16(val) (GINT16_FROM_BE (*((u_int16_t*)(val)))) +-#define LE_32(val) (GINT32_FROM_LE (*((u_int32_t*)(val)))) +-#define BE_32(val) (GINT32_FROM_BE (*((u_int32_t*)(val)))) ++#define LE_16(val) SWAP_ENDIAN_16(((uint8_t *)(val))) ++#define LE_32(val) SWAP_ENDIAN_32(((uint8_t *)(val))) ++#define LE_64(val) SWAP_ENDIAN_64(((uint8_t *)(val))) ++#define BE_16(val) SAME_ENDIAN_16(((uint8_t *)(val))) ++#define BE_32(val) SAME_ENDIAN_32(((uint8_t *)(val))) ++#define BE_64(val) SAME_ENDIAN_64(((uint8_t *)(val))) + +-#define LE_64(val) (GINT64_FROM_LE (*((u_int64_t*)(val)))) +-#define BE_64(val) (GINT64_FROM_BE (*((u_int64_t*)(val)))) ++#else ++#error Unknown endianness! ++#endif + + #endif /* BSWAP_H_INCLUDED */ +-- +1.7.2.2 + diff --git a/package/multimedia/libmms/libmms.mk b/package/multimedia/libmms/libmms.mk index 489bf0de2..a8f4527fd 100644 --- a/package/multimedia/libmms/libmms.mk +++ b/package/multimedia/libmms/libmms.mk @@ -3,9 +3,9 @@ # libmms # ############################################################# -LIBMMS_VERSION = 0.4 +LIBMMS_VERSION = 0.6 LIBMMS_SOURCE = libmms-$(LIBMMS_VERSION).tar.gz -LIBMMS_SITE = http://launchpad.net/libmms/trunk/$(LIBMMS_VERSION)/+download +LIBMMS_SITE = http://$(BR2_SOURCEFORGE_MIRROR).dl.sourceforge.net/sourceforge/libmms LIBMMS_AUTORECONF = NO LIBMMS_LIBTOOL_PATCH = NO |