commit 95d751feacdb58d3fbc36f3f21a895a3ec2f065b
author David 'Digit' Turner <digit@google.com> Thu Dec 16 16:47:14 2010 +0100
committer David 'Digit' Turner <digit@google.com> Thu Dec 16 17:04:41 2010 +0100
tree fc598e3e60c32a6bb576e224d27f37905769f0e8
parent 4a7f31fad74417696ce740b1f5c14e4de0740e33

libc: Add ftruncate64 and improve 64-bit parameter syscall handling.

This patch improves the handling of 64-bit parameters in syscalls on ARM.
The ARM EABI mandates that 64-bit quantities be passed in even/odd register
pairs, which requires special treatment.

This allows us to simplify our implementations of pread() and pwrite()
and remove the C stubs for pread64() and pwrite64().

Also add ftruncate64() to <unistd.h>

Change-Id: I407e2fd223ba0093dd2d0b04c6152fadfc9ce3ef

Bug 3107933

libc/include/sys/linux-syscalls.h

diff --git a/libc/include/sys/linux-syscalls.h b/libc/include/sys/linux-syscalls.h
index 35729ae..cb4d5e5 100644
--- a/libc/include/sys/linux-syscalls.h
+++ b/libc/include/sys/linux-syscalls.h
@@ -71,6 +71,7 @@
 #define __NR_dup2                         (__NR_SYSCALL_BASE + 63)
 #define __NR__newselect                   (__NR_SYSCALL_BASE + 142)
 #define __NR_ftruncate                    (__NR_SYSCALL_BASE + 93)
+#define __NR_ftruncate64                  (__NR_SYSCALL_BASE + 194)
 #define __NR_fsync                        (__NR_SYSCALL_BASE + 118)
 #define __NR_fdatasync                    (__NR_SYSCALL_BASE + 148)
 #define __NR_fchown32                     (__NR_SYSCALL_BASE + 207)