From: Szabolcs Nagy <nsz@port70.net>
Date: Tue, 11 Aug 2015 20:55:18 +0000 (+0000)
Subject: aarch64: fix 64-bit syscall argument passing
X-Git-Tag: v1.1.11~6
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=e5b086e1d5fe52bf1553357ee790de86eda27bf1;p=oweals%2Fmusl.git

aarch64: fix 64-bit syscall argument passing

On 32bit systems long long arguments are passed in a special way
to some syscalls; this accidentally got copied to the AArch64 port.

The following interfaces were broken: fallocate, fanotify, ftruncate,
posix_fadvise, posix_fallocate, pread, pwrite, readahead,
sync_file_range, truncate.
---

diff --git a/arch/aarch64/syscall_arch.h b/arch/aarch64/syscall_arch.h
index a92bff97..25f5ce67 100644
--- a/arch/aarch64/syscall_arch.h
+++ b/arch/aarch64/syscall_arch.h
@@ -1,7 +1,5 @@
-#define __SYSCALL_LL_E(x) \
-((union { long long ll; long l[2]; }){ .ll = x }).l[0], \
-((union { long long ll; long l[2]; }){ .ll = x }).l[1]
-#define __SYSCALL_LL_O(x) 0, __SYSCALL_LL_E((x))
+#define __SYSCALL_LL_E(x) (x)
+#define __SYSCALL_LL_O(x) (x)
 
 #define __asm_syscall(...) do { \
 	__asm__ __volatile__ ( "svc 0" \