summaryrefslogtreecommitdiff
path: root/arch/arm/vdso/vdsomunge.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/vdso/vdsomunge.c')
-rw-r--r--arch/arm/vdso/vdsomunge.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/arch/arm/vdso/vdsomunge.c b/arch/arm/vdso/vdsomunge.c
index aedec81d1198..0cebd98cd88c 100644
--- a/arch/arm/vdso/vdsomunge.c
+++ b/arch/arm/vdso/vdsomunge.c
@@ -45,7 +45,6 @@
* it does.
*/
-#include <byteswap.h>
#include <elf.h>
#include <errno.h>
#include <fcntl.h>
@@ -59,6 +58,16 @@
#include <sys/types.h>
#include <unistd.h>
+#define swab16(x) \
+ ((((x) & 0x00ff) << 8) | \
+ (((x) & 0xff00) >> 8))
+
+#define swab32(x) \
+ ((((x) & 0x000000ff) << 24) | \
+ (((x) & 0x0000ff00) << 8) | \
+ (((x) & 0x00ff0000) >> 8) | \
+ (((x) & 0xff000000) << 24))
+
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
#define HOST_ORDER ELFDATA2LSB
#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
@@ -104,17 +113,17 @@ static void cleanup(void)
static Elf32_Word read_elf_word(Elf32_Word word, bool swap)
{
- return swap ? bswap_32(word) : word;
+ return swap ? swab32(word) : word;
}
static Elf32_Half read_elf_half(Elf32_Half half, bool swap)
{
- return swap ? bswap_16(half) : half;
+ return swap ? swab16(half) : half;
}
static void write_elf_word(Elf32_Word val, Elf32_Word *dst, bool swap)
{
- *dst = swap ? bswap_32(val) : val;
+ *dst = swap ? swab32(val) : val;
}
int main(int argc, char **argv)