[PATCH v6 14/21] arm64:ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it
From: arnd@arndb.de (Arnd Bergmann)
Date: 2016-01-08 09:22:18
Also in:
lkml
On Friday 08 January 2016 02:34:32 Yury Norov wrote:
quoted hunk ↗ jump to hunk
@@ -688,6 +692,12 @@ ni_sys: b ret_fast_syscall ENDPROC(el0_svc) +#ifdef CONFIG_ARM64_ILP32 +el0_ilp32_svc: + adrp stbl, sys_call_ilp32_table // load syscall table pointer + b el0_svc_naked +#endif
Don't we still need some code that clears the top halves of the 32-bit arguments? That thread has taken so many turns now that I'm confused about what we actually need, but I thought we had concluded that your current approach has at some some problems.
+#include <asm/syscall.h> + +#undef __SYSCALL +#undef __SC_COMP +#undef __SC_3264 +#undef __SC_COMP_3264
The four #undef are not needed, right? Arnd