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
diff --git a/libc/arch-x86/syscalls.mk b/libc/arch-x86/syscalls.mk
index c210b21..e8c6a77 100644
--- a/libc/arch-x86/syscalls.mk
+++ b/libc/arch-x86/syscalls.mk
@@ -44,8 +44,8 @@
syscall_src += arch-x86/syscalls/acct.S
syscall_src += arch-x86/syscalls/read.S
syscall_src += arch-x86/syscalls/write.S
-syscall_src += arch-x86/syscalls/__pread64.S
-syscall_src += arch-x86/syscalls/__pwrite64.S
+syscall_src += arch-x86/syscalls/pread64.S
+syscall_src += arch-x86/syscalls/pwrite64.S
syscall_src += arch-x86/syscalls/__open.S
syscall_src += arch-x86/syscalls/__openat.S
syscall_src += arch-x86/syscalls/close.S
@@ -73,6 +73,7 @@
syscall_src += arch-x86/syscalls/dup2.S
syscall_src += arch-x86/syscalls/select.S
syscall_src += arch-x86/syscalls/ftruncate.S
+syscall_src += arch-x86/syscalls/ftruncate64.S
syscall_src += arch-x86/syscalls/getdents.S
syscall_src += arch-x86/syscalls/fsync.S
syscall_src += arch-x86/syscalls/fdatasync.S