arm64: Add __NR_* definitions for compat syscalls

This patch adds __NR_* definitions to asm/unistd32.h, moves the
__NR_compat_* definitions to asm/unistd.h and removes all the explicit
unistd32.h includes apart from the one building the compat syscall
table. The aim is to have the compat __NR_* definitions available but
without colliding with the native syscall definitions (required by
lib/compat_audit.c to avoid duplicating the audit header files between
native and compat).

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
index e5f47df00c24..4bc95d27e063 100644
--- a/arch/arm64/include/asm/unistd.h
+++ b/arch/arm64/include/asm/unistd.h
@@ -26,7 +26,24 @@
 #define __ARCH_WANT_COMPAT_SYS_SENDFILE
 #define __ARCH_WANT_SYS_FORK
 #define __ARCH_WANT_SYS_VFORK
+
+/*
+ * Compat syscall numbers used by the AArch64 kernel.
+ */
+#define __NR_compat_restart_syscall     0
+#define __NR_compat_sigreturn           119
+#define __NR_compat_rt_sigreturn        173
+
+/*
+ * The following SVCs are ARM private.
+ */
+#define __ARM_NR_COMPAT_BASE            0x0f0000
+#define __ARM_NR_compat_cacheflush      (__ARM_NR_COMPAT_BASE+2)
+#define __ARM_NR_compat_set_tls         (__ARM_NR_COMPAT_BASE+5)
+
+#define __NR_compat_syscalls            383
 #endif
+
 #define __ARCH_WANT_SYS_CLONE
 #include <uapi/asm/unistd.h>