diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/aarch64/sysdep.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/aarch64/sysdep.h | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/sysdeps/unix/sysv/linux/aarch64/sysdep.h b/sysdeps/unix/sysv/linux/aarch64/sysdep.h index a397e50ef6..9ac2f0702a 100644 --- a/sysdeps/unix/sysv/linux/aarch64/sysdep.h +++ b/sysdeps/unix/sysv/linux/aarch64/sysdep.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2005-2016 Free Software Foundation, Inc. +/* Copyright (C) 2005-2018 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -108,7 +108,7 @@ .Lsyscall_error: \ adrp x1, :gottprel:errno; \ neg w2, w0; \ - ldr x1, [x1, :gottprel_lo12:errno]; \ + ldr PTR_REG(1), [x1, :gottprel_lo12:errno]; \ mrs x3, tpidr_el0; \ mov x0, -1; \ str w2, [x1, x3]; \ @@ -157,6 +157,12 @@ # define HAVE_CLOCK_GETTIME_VSYSCALL 1 # define HAVE_GETTIMEOFDAY_VSYSCALL 1 +/* Previously AArch64 used the generic version without the libc_hidden_def + which lead in a non existent __send symbol in libc.so. */ +# undef HAVE_INTERNAL_SEND_SYMBOL + +# define SINGLE_THREAD_BY_GLOBAL 1 + /* Define a macro which expands into the inline wrapper code for a system call. */ # undef INLINE_SYSCALL @@ -250,12 +256,14 @@ (!defined SHARED && (IS_IN (libc) \ || IS_IN (libpthread)))) # ifdef __ASSEMBLER__ +/* Note, dst, src, guard, and tmp are all register numbers rather than + register names so they will work with both ILP32 and LP64. */ # define PTR_MANGLE(dst, src, guard, tmp) \ LDST_PCREL (ldr, guard, tmp, C_SYMBOL_NAME(__pointer_chk_guard_local)); \ PTR_MANGLE2 (dst, src, guard) /* Use PTR_MANGLE2 for efficiency if guard is already loaded. */ # define PTR_MANGLE2(dst, src, guard)\ - eor dst, src, guard + eor x##dst, x##src, x##guard # define PTR_DEMANGLE(dst, src, guard, tmp)\ PTR_MANGLE (dst, src, guard, tmp) # define PTR_DEMANGLE2(dst, src, guard)\ @@ -268,12 +276,14 @@ extern uintptr_t __pointer_chk_guard_local attribute_relro attribute_hidden; # endif #else # ifdef __ASSEMBLER__ +/* Note, dst, src, guard, and tmp are all register numbers rather than + register names so they will work with both ILP32 and LP64. */ # define PTR_MANGLE(dst, src, guard, tmp) \ LDST_GLOBAL (ldr, guard, tmp, C_SYMBOL_NAME(__pointer_chk_guard)); \ PTR_MANGLE2 (dst, src, guard) /* Use PTR_MANGLE2 for efficiency if guard is already loaded. */ # define PTR_MANGLE2(dst, src, guard)\ - eor dst, src, guard + eor x##dst, x##src, x##guard # define PTR_DEMANGLE(dst, src, guard, tmp)\ PTR_MANGLE (dst, src, guard, tmp) # define PTR_DEMANGLE2(dst, src, guard)\ |