diff options
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h')
| -rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h b/REORG.TODO/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h new file mode 100644 index 0000000000..30aab691e7 --- /dev/null +++ b/REORG.TODO/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h @@ -0,0 +1,147 @@ +/* Copyright (C) 1997-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Miguel de Icaza <miguel@gnu.ai.mit.edu>, January 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + 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, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _LINUX_SPARC32_SYSDEP_H +#define _LINUX_SPARC32_SYSDEP_H 1 + +#include <sysdeps/unix/sysv/linux/sparc/sysdep.h> + +#if IS_IN (rtld) +# include <dl-sysdep.h> /* Defines RTLD_PRIVATE_ERRNO. */ +#endif +#include <tls.h> + +#undef SYS_ify +#define SYS_ify(syscall_name) __NR_##syscall_name + +#ifdef __ASSEMBLER__ + +#define LOADSYSCALL(x) mov __NR_##x, %g1 + +#undef PSEUDO +#define PSEUDO(name, syscall_name, args) \ + .text; \ +ENTRY(name); \ + LOADSYSCALL(syscall_name); \ + ta 0x10; \ + bcc 1f; \ + nop; \ + SYSCALL_ERROR_HANDLER \ +1: + +#undef PSEUDO_NOERRNO +#define PSEUDO_NOERRNO(name, syscall_name, args)\ + .text; \ +ENTRY(name); \ + LOADSYSCALL(syscall_name); \ + ta 0x10; + +#undef PSEUDO_ERRVAL +#define PSEUDO_ERRVAL(name, syscall_name, args) \ + .text; \ +ENTRY(name); \ + LOADSYSCALL(syscall_name); \ + ta 0x10; + +#undef PSEUDO_END +#define PSEUDO_END(name) \ + END(name) + +#ifndef PIC +# define SYSCALL_ERROR_HANDLER \ + mov %o7, %g1; \ + call __syscall_error; \ + mov %g1, %o7; +#else +# if RTLD_PRIVATE_ERRNO +# define SYSCALL_ERROR_HANDLER \ +0: SETUP_PIC_REG_LEAF(o2,g1) \ + sethi %gdop_hix22(rtld_errno), %g1; \ + xor %g1, %gdop_lox10(rtld_errno), %g1;\ + ld [%o2 + %g1], %g1, %gdop(rtld_errno); \ + st %o0, [%g1]; \ + jmp %o7 + 8; \ + mov -1, %o0; +# elif defined _LIBC_REENTRANT + +# if IS_IN (libc) +# define SYSCALL_ERROR_ERRNO __libc_errno +# else +# define SYSCALL_ERROR_ERRNO errno +# endif +# define SYSCALL_ERROR_HANDLER \ +0: SETUP_PIC_REG_LEAF(o2,g1) \ + sethi %tie_hi22(SYSCALL_ERROR_ERRNO), %g1; \ + add %g1, %tie_lo10(SYSCALL_ERROR_ERRNO), %g1; \ + ld [%o2 + %g1], %g1, %tie_ld(SYSCALL_ERROR_ERRNO); \ + st %o0, [%g7 + %g1]; \ + jmp %o7 + 8; \ + mov -1, %o0; +# else +# define SYSCALL_ERROR_HANDLER \ +0: SETUP_PIC_REG_LEAF(o2,g1) \ + sethi %gdop_hix22(errno), %g1;\ + xor %g1, %gdop_lox10(errno), %g1;\ + ld [%o2 + %g1], %g1, %gdop(errno);\ + st %o0, [%g1]; \ + jmp %o7 + 8; \ + mov -1, %o0; +# endif /* _LIBC_REENTRANT */ +#endif /* PIC */ + + +#else /* __ASSEMBLER__ */ + +#define __SYSCALL_STRING \ + "ta 0x10;" \ + "bcc 1f;" \ + " mov 0, %%g1;" \ + "sub %%g0, %%o0, %%o0;" \ + "mov 1, %%g1;" \ + "1:" + +#define __SYSCALL_CLOBBERS \ + "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \ + "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \ + "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", \ + "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", \ + "cc", "memory" + +#endif /* __ASSEMBLER__ */ + +/* Pointer mangling support. */ +#if IS_IN (rtld) +/* We cannot use the thread descriptor because in ld.so we use setjmp + earlier than the descriptor is initialized. */ +#else +# ifdef __ASSEMBLER__ +# define PTR_MANGLE(dreg, reg, tmpreg) \ + ld [%g7 + POINTER_GUARD], tmpreg; \ + xor reg, tmpreg, dreg +# define PTR_DEMANGLE(dreg, reg, tmpreg) PTR_MANGLE (dreg, reg, tmpreg) +# define PTR_MANGLE2(dreg, reg, tmpreg) \ + xor reg, tmpreg, dreg +# define PTR_DEMANGLE2(dreg, reg, tmpreg) PTR_MANGLE2 (dreg, reg, tmpreg) +# else +# define PTR_MANGLE(var) \ + (var) = (__typeof (var)) ((uintptr_t) (var) ^ THREAD_GET_POINTER_GUARD ()) +# define PTR_DEMANGLE(var) PTR_MANGLE (var) +# endif +#endif + +#endif /* linux/sparc/sysdep.h */ |