-/* Copyright (C) 1992,1993,1995,1996,1997,1998,1999,2000,2002,2003,2004,
- 2005 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>, August 1995.
Changed by Kaz Kojima, <kkojima@rr.iij4u.or.jp>.
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
#ifndef _LINUX_SH_SYSDEP_H
#define _LINUX_SH_SYSDEP_H 1
/* There is some commonality. */
+#include <sysdeps/unix/sysv/linux/sysdep.h>
#include <sysdeps/unix/sh/sysdep.h>
#include <tls.h>
# if RTLD_PRIVATE_ERRNO
# define SYSCALL_ERROR_HANDLER \
neg r0,r1; \
+ mov r12,r2; \
+ cfi_register (r12, r2); \
mov.l 0f,r12; \
mova 0f,r0; \
add r0,r12; \
mov.l 1f,r0; \
mov.l r1,@(r0,r12); \
+ mov r2,r12; \
+ cfi_restore (r12); \
bra .Lpseudo_end; \
mov _IMM1,r0; \
.align 2; \
# elif defined _LIBC_REENTRANT
-# if USE___THREAD
-# ifndef NOT_IN_libc
-# define SYSCALL_ERROR_ERRNO __libc_errno
-# else
-# define SYSCALL_ERROR_ERRNO errno
-# endif
-# define SYSCALL_ERROR_HANDLER \
+# if IS_IN (libc)
+# define SYSCALL_ERROR_ERRNO __libc_errno
+# else
+# define SYSCALL_ERROR_ERRNO errno
+# endif
+# define SYSCALL_ERROR_HANDLER \
neg r0,r1; \
mov r12,r2; \
+ cfi_register (r12, r2); \
mov.l 0f,r12; \
mova 0f,r0; \
add r0,r12; \
stc gbr, r4; \
mov.l @(r0,r12),r0; \
mov r2,r12; \
+ cfi_restore (r12); \
add r4,r0; \
mov.l r1,@r0; \
bra .Lpseudo_end; \
.align 2; \
0: .long _GLOBAL_OFFSET_TABLE_; \
1: .long SYSCALL_ERROR_ERRNO@GOTTPOFF
-# else
-# define SYSCALL_ERROR_HANDLER \
- neg r0,r1; \
- mov.l r14,@-r15; \
- cfi_adjust_cfa_offset (4); \
- cfi_rel_offset (r14, 0); \
- mov.l r12,@-r15; \
- cfi_adjust_cfa_offset (4); \
- cfi_rel_offset (r12, 0); \
- mov.l r1,@-r15; \
- cfi_adjust_cfa_offset (4); \
- cfi_rel_offset (r1, 0); \
- mov.l 0f,r12; \
- mova 0f,r0; \
- add r0,r12; \
- sts.l pr,@-r15; \
- cfi_adjust_cfa_offset (4); \
- cfi_rel_offset (pr, 0); \
- mov r15,r14; \
- cfi_def_cfa_register (r14); \
- mov.l 1f,r1; \
- bsrf r1; \
- nop; \
- 2: mov r14,r15; \
- lds.l @r15+,pr; \
- mov.l @r15+,r1; \
- mov.l r1,@r0; \
- mov.l @r15+,r12; \
- mov.l @r15+,r14; \
- bra .Lpseudo_end; \
- mov _IMM1,r0; \
- .align 2; \
- 0: .long _GLOBAL_OFFSET_TABLE_; \
- 1: .long PLTJMP(C_SYMBOL_NAME(__errno_location))-(2b-.)
-/* A quick note: it is assumed that the call to `__errno_location' does
- not modify the stack! */
-# endif
# else
/* Store (-r0) into errno through the GOT. */
# define SYSCALL_ERROR_HANDLER \
neg r0,r1; \
mov r12,r2; \
+ cfi_register (r12, r2); \
mov.l 0f,r12; \
mova 0f,r0; \
add r0,r12; \
mov.l 1f,r0; \
mov.l @(r0,r12),r0; \
mov r2,r12; \
+ cfi_restore (r12); \
mov.l r1,@r0; \
bra .Lpseudo_end; \
mov _IMM1,r0; \
unsigned int resultvar = INTERNAL_SYSCALL (name, , nr, args); \
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (resultvar, ), 0)) \
{ \
- __set_errno (INTERNAL_SYSCALL_ERRNO (resultvar, )); \
- resultvar = 0xffffffff; \
+ __set_errno (INTERNAL_SYSCALL_ERRNO (resultvar, )); \
+ resultvar = 0xffffffff; \
} \
(int) resultvar; })
asm volatile (SYSCALL_INST_STR##nr SYSCALL_INST_PAD \
: "=z" (resultvar) \
: "r" (r3) ASMFMT_##nr \
- : "memory"); \
+ : "memory", "t"); \
\
(int) resultvar; })
#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
({ \
unsigned long int resultvar; \
- register long int r3 asm ("%r3") = (name); \
+ register long int r3 asm ("%r3") = (name); \
SUBSTITUTE_ARGS_##nr(args); \
\
asm volatile (SYSCALL_INST_STR##nr SYSCALL_INST_PAD \
: "=z" (resultvar) \
: "r" (r3) ASMFMT_##nr \
- : "memory"); \
+ : "memory", "t"); \
\
(int) resultvar; })
#endif /* __ASSEMBLER__ */
/* Pointer mangling support. */
-#if defined NOT_IN_libc && defined IS_IN_rtld
+#if IS_IN (rtld)
/* We cannot use the thread descriptor because in ld.so we use setjmp
earlier than the descriptor is initialized. Using a global variable
is too complicated here since we have no PC-relative addressing mode. */
#else
# ifdef __ASSEMBLER__
-# define PTR_MANGLE(reg) \
- stc gbr,r1; mov.l @(POINTER_GUARD,r1),r1; xor r1,reg
-# define PTR_DEMANGLE(reg) PTR_MANGLE (reg)
+# define PTR_MANGLE(reg, tmp) \
+ stc gbr,tmp; mov.l @(POINTER_GUARD,tmp),tmp; xor tmp,reg
+# define PTR_MANGLE2(reg, tmp) xor tmp,reg
+# define PTR_DEMANGLE(reg, tmp) PTR_MANGLE (reg, tmp)
+# define PTR_DEMANGLE2(reg, tmp) PTR_MANGLE2 (reg, tmp)
# else
# define PTR_MANGLE(var) \
(var) = (void *) ((uintptr_t) (var) ^ THREAD_GET_POINTER_GUARD ())