diff options
Diffstat (limited to 'sysdeps/unix/alpha/sysdep.h')
| -rw-r--r-- | sysdeps/unix/alpha/sysdep.h | 438 |
1 files changed, 0 insertions, 438 deletions
diff --git a/sysdeps/unix/alpha/sysdep.h b/sysdeps/unix/alpha/sysdep.h deleted file mode 100644 index 2e5bc798eb..0000000000 --- a/sysdeps/unix/alpha/sysdep.h +++ /dev/null @@ -1,438 +0,0 @@ -/* Copyright (C) 1992, 1995, 1996, 2000, 2003, 2004, 2006 - Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Brendan Kehoe (brendan@zen.org). - - 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, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdeps/unix/sysdep.h> - -#ifdef __ASSEMBLER__ - -#ifdef __linux__ -# include <alpha/regdef.h> -#else -# include <regdef.h> -#endif - -#include <tls.h> /* Defines USE___THREAD. */ - -#ifdef IS_IN_rtld -# include <dl-sysdep.h> /* Defines RTLD_PRIVATE_ERRNO. */ -#endif - - -#ifdef __STDC__ -#define __LABEL(x) x##: -#else -#define __LABEL(x) x/**/: -#endif - -#define LEAF(name, framesize) \ - .globl name; \ - .align 4; \ - .ent name, 0; \ - __LABEL(name) \ - .frame sp, framesize, ra - -#define ENTRY(name) \ - .globl name; \ - .align 4; \ - .ent name, 0; \ - __LABEL(name) \ - .frame sp, 0, ra - -/* Mark the end of function SYM. */ -#undef END -#define END(sym) .end sym - -#ifdef PROF -# define PSEUDO_PROLOGUE \ - .frame sp, 0, ra; \ - ldgp gp,0(pv); \ - .set noat; \ - lda AT,_mcount; \ - jsr AT,(AT),_mcount; \ - .set at; \ - .prologue 1 -#elif defined PIC -# define PSEUDO_PROLOGUE \ - .frame sp, 0, ra; \ - .prologue 0 -#else -# define PSEUDO_PROLOGUE \ - .frame sp, 0, ra; \ - ldgp gp,0(pv); \ - .prologue 1 -#endif /* PROF */ - -#if RTLD_PRIVATE_ERRNO -# define SYSCALL_ERROR_LABEL $syscall_error -# define SYSCALL_ERROR_HANDLER \ - stl v0, rtld_errno(gp) !gprel; \ - lda v0, -1; \ - ret -#elif defined(PIC) -# define SYSCALL_ERROR_LABEL __syscall_error -# define SYSCALL_ERROR_HANDLER \ - br $31, __syscall_error !samegp -#else -# define SYSCALL_ERROR_LABEL $syscall_error -# define SYSCALL_ERROR_HANDLER \ - jmp $31, __syscall_error -#endif /* RTLD_PRIVATE_ERRNO */ - -/* Overridden by specific syscalls. */ -#undef PSEUDO_PREPARE_ARGS -#define PSEUDO_PREPARE_ARGS /* Nothing. */ - -#define PSEUDO(name, syscall_name, args) \ - .globl name; \ - .align 4; \ - .ent name,0; \ -__LABEL(name) \ - PSEUDO_PROLOGUE; \ - PSEUDO_PREPARE_ARGS \ - lda v0, SYS_ify(syscall_name); \ - call_pal PAL_callsys; \ - bne a3, SYSCALL_ERROR_LABEL - -#undef PSEUDO_END -#if defined(PIC) && !RTLD_PRIVATE_ERRNO -# define PSEUDO_END(sym) END(sym) -#else -# define PSEUDO_END(sym) \ -$syscall_error: \ - SYSCALL_ERROR_HANDLER; \ - END(sym) -#endif - -#define PSEUDO_NOERRNO(name, syscall_name, args) \ - .globl name; \ - .align 4; \ - .ent name,0; \ -__LABEL(name) \ - PSEUDO_PROLOGUE; \ - PSEUDO_PREPARE_ARGS \ - lda v0, SYS_ify(syscall_name); \ - call_pal PAL_callsys; - -#undef PSEUDO_END_NOERRNO -#define PSEUDO_END_NOERRNO(sym) END(sym) - -#define ret_NOERRNO ret - -#define PSEUDO_ERRVAL(name, syscall_name, args) \ - .globl name; \ - .align 4; \ - .ent name,0; \ -__LABEL(name) \ - PSEUDO_PROLOGUE; \ - PSEUDO_PREPARE_ARGS \ - lda v0, SYS_ify(syscall_name); \ - call_pal PAL_callsys; - -#undef PSEUDO_END_ERRVAL -#define PSEUDO_END_ERRVAL(sym) END(sym) - -#define ret_ERRVAL ret - -#define r0 v0 -#define r1 a4 - -#define MOVE(x,y) mov x,y - -#else /* !ASSEMBLER */ - -/* ??? Linux needs to be able to override INLINE_SYSCALL for one - particular special case. Make this easy. */ - -#undef INLINE_SYSCALL -#define INLINE_SYSCALL(name, nr, args...) \ - INLINE_SYSCALL1(name, nr, args) - -#define INLINE_SYSCALL1(name, nr, args...) \ -({ \ - long _sc_ret, _sc_err; \ - inline_syscall##nr(__NR_##name, args); \ - if (__builtin_expect (_sc_err, 0)) \ - { \ - __set_errno (_sc_ret); \ - _sc_ret = -1L; \ - } \ - _sc_ret; \ -}) - -#define INTERNAL_SYSCALL(name, err_out, nr, args...) \ - INTERNAL_SYSCALL1(name, err_out, nr, args) - -#define INTERNAL_SYSCALL1(name, err_out, nr, args...) \ - INTERNAL_SYSCALL_NCS(__NR_##name, err_out, nr, args) - -#define INTERNAL_SYSCALL_NCS(name, err_out, nr, args...) \ -({ \ - long _sc_ret, _sc_err; \ - inline_syscall##nr(name, args); \ - err_out = _sc_err; \ - _sc_ret; \ -}) - -#define INTERNAL_SYSCALL_DECL(err) long int err -#define INTERNAL_SYSCALL_ERROR_P(val, err) err -#define INTERNAL_SYSCALL_ERRNO(val, err) val - -#define inline_syscall_clobbers \ - "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8", \ - "$22", "$23", "$24", "$25", "$27", "$28", "memory" - -/* If TLS is in use, we have a conflict between the PAL_rduniq primitive, - as modeled within GCC, and explicit use of the R0 register. If we use - the register via the asm, the scheduler may place the PAL_rduniq insn - before we've copied the data from R0 into _sc_ret. If this happens - we'll get a reload abort, since R0 is live at the same time it is - needed for the PAL_rduniq. - - Solve this by using the "v" constraint instead of an asm for the syscall - output. We don't do this unconditionally to allow compilation with - older compilers. */ - -#ifdef HAVE___THREAD -#define inline_syscall_r0_asm -#define inline_syscall_r0_out_constraint "=v" -#else -#define inline_syscall_r0_asm __asm__("$0") -#define inline_syscall_r0_out_constraint "=r" -#endif - -/* It is moderately important optimization-wise to limit the lifetime - of the hard-register variables as much as possible. Thus we copy - in/out as close to the asm as possible. */ - -#define inline_syscall0(name, args...) \ -{ \ - register long _sc_0 inline_syscall_r0_asm; \ - register long _sc_19 __asm__("$19"); \ - \ - _sc_0 = name; \ - __asm__ __volatile__ \ - ("callsys # %0 %1 <= %2" \ - : inline_syscall_r0_out_constraint (_sc_0), \ - "=r"(_sc_19) \ - : "0"(_sc_0) \ - : inline_syscall_clobbers, \ - "$16", "$17", "$18", "$20", "$21"); \ - _sc_ret = _sc_0, _sc_err = _sc_19; \ -} - -#define inline_syscall1(name,arg1) \ -{ \ - register long _sc_0 inline_syscall_r0_asm; \ - register long _sc_16 __asm__("$16"); \ - register long _sc_19 __asm__("$19"); \ - register long _tmp_16 = (long) (arg1); \ - \ - _sc_0 = name; \ - _sc_16 = _tmp_16; \ - __asm__ __volatile__ \ - ("callsys # %0 %1 <= %2 %3" \ - : inline_syscall_r0_out_constraint (_sc_0), \ - "=r"(_sc_19), "=r"(_sc_16) \ - : "0"(_sc_0), "2"(_sc_16) \ - : inline_syscall_clobbers, \ - "$17", "$18", "$20", "$21"); \ - _sc_ret = _sc_0, _sc_err = _sc_19; \ -} - -#define inline_syscall2(name,arg1,arg2) \ -{ \ - register long _sc_0 inline_syscall_r0_asm; \ - register long _sc_16 __asm__("$16"); \ - register long _sc_17 __asm__("$17"); \ - register long _sc_19 __asm__("$19"); \ - register long _tmp_16 = (long) (arg1); \ - register long _tmp_17 = (long) (arg2); \ - \ - _sc_0 = name; \ - _sc_16 = _tmp_16; \ - _sc_17 = _tmp_17; \ - __asm__ __volatile__ \ - ("callsys # %0 %1 <= %2 %3 %4" \ - : inline_syscall_r0_out_constraint (_sc_0), \ - "=r"(_sc_19), "=r"(_sc_16), "=r"(_sc_17) \ - : "0"(_sc_0), "2"(_sc_16), "3"(_sc_17) \ - : inline_syscall_clobbers, \ - "$18", "$20", "$21"); \ - _sc_ret = _sc_0, _sc_err = _sc_19; \ -} - -#define inline_syscall3(name,arg1,arg2,arg3) \ -{ \ - register long _sc_0 inline_syscall_r0_asm; \ - register long _sc_16 __asm__("$16"); \ - register long _sc_17 __asm__("$17"); \ - register long _sc_18 __asm__("$18"); \ - register long _sc_19 __asm__("$19"); \ - register long _tmp_16 = (long) (arg1); \ - register long _tmp_17 = (long) (arg2); \ - register long _tmp_18 = (long) (arg3); \ - \ - _sc_0 = name; \ - _sc_16 = _tmp_16; \ - _sc_17 = _tmp_17; \ - _sc_18 = _tmp_18; \ - __asm__ __volatile__ \ - ("callsys # %0 %1 <= %2 %3 %4 %5" \ - : inline_syscall_r0_out_constraint (_sc_0), \ - "=r"(_sc_19), "=r"(_sc_16), "=r"(_sc_17), \ - "=r"(_sc_18) \ - : "0"(_sc_0), "2"(_sc_16), "3"(_sc_17), \ - "4"(_sc_18) \ - : inline_syscall_clobbers, "$20", "$21"); \ - _sc_ret = _sc_0, _sc_err = _sc_19; \ -} - -#define inline_syscall4(name,arg1,arg2,arg3,arg4) \ -{ \ - register long _sc_0 inline_syscall_r0_asm; \ - register long _sc_16 __asm__("$16"); \ - register long _sc_17 __asm__("$17"); \ - register long _sc_18 __asm__("$18"); \ - register long _sc_19 __asm__("$19"); \ - register long _tmp_16 = (long) (arg1); \ - register long _tmp_17 = (long) (arg2); \ - register long _tmp_18 = (long) (arg3); \ - register long _tmp_19 = (long) (arg4); \ - \ - _sc_0 = name; \ - _sc_16 = _tmp_16; \ - _sc_17 = _tmp_17; \ - _sc_18 = _tmp_18; \ - _sc_19 = _tmp_19; \ - __asm__ __volatile__ \ - ("callsys # %0 %1 <= %2 %3 %4 %5 %6" \ - : inline_syscall_r0_out_constraint (_sc_0), \ - "=r"(_sc_19), "=r"(_sc_16), "=r"(_sc_17), \ - "=r"(_sc_18) \ - : "0"(_sc_0), "2"(_sc_16), "3"(_sc_17), \ - "4"(_sc_18), "1"(_sc_19) \ - : inline_syscall_clobbers, "$20", "$21"); \ - _sc_ret = _sc_0, _sc_err = _sc_19; \ -} - -#define inline_syscall5(name,arg1,arg2,arg3,arg4,arg5) \ -{ \ - register long _sc_0 inline_syscall_r0_asm; \ - register long _sc_16 __asm__("$16"); \ - register long _sc_17 __asm__("$17"); \ - register long _sc_18 __asm__("$18"); \ - register long _sc_19 __asm__("$19"); \ - register long _sc_20 __asm__("$20"); \ - register long _tmp_16 = (long) (arg1); \ - register long _tmp_17 = (long) (arg2); \ - register long _tmp_18 = (long) (arg3); \ - register long _tmp_19 = (long) (arg4); \ - register long _tmp_20 = (long) (arg5); \ - \ - _sc_0 = name; \ - _sc_16 = _tmp_16; \ - _sc_17 = _tmp_17; \ - _sc_18 = _tmp_18; \ - _sc_19 = _tmp_19; \ - _sc_20 = _tmp_20; \ - __asm__ __volatile__ \ - ("callsys # %0 %1 <= %2 %3 %4 %5 %6 %7" \ - : inline_syscall_r0_out_constraint (_sc_0), \ - "=r"(_sc_19), "=r"(_sc_16), "=r"(_sc_17), \ - "=r"(_sc_18), "=r"(_sc_20) \ - : "0"(_sc_0), "2"(_sc_16), "3"(_sc_17), \ - "4"(_sc_18), "1"(_sc_19), "5"(_sc_20) \ - : inline_syscall_clobbers, "$21"); \ - _sc_ret = _sc_0, _sc_err = _sc_19; \ -} - -#define inline_syscall6(name,arg1,arg2,arg3,arg4,arg5,arg6) \ -{ \ - register long _sc_0 inline_syscall_r0_asm; \ - register long _sc_16 __asm__("$16"); \ - register long _sc_17 __asm__("$17"); \ - register long _sc_18 __asm__("$18"); \ - register long _sc_19 __asm__("$19"); \ - register long _sc_20 __asm__("$20"); \ - register long _sc_21 __asm__("$21"); \ - register long _tmp_16 = (long) (arg1); \ - register long _tmp_17 = (long) (arg2); \ - register long _tmp_18 = (long) (arg3); \ - register long _tmp_19 = (long) (arg4); \ - register long _tmp_20 = (long) (arg5); \ - register long _tmp_21 = (long) (arg6); \ - \ - _sc_0 = name; \ - _sc_16 = _tmp_16; \ - _sc_17 = _tmp_17; \ - _sc_18 = _tmp_18; \ - _sc_19 = _tmp_19; \ - _sc_20 = _tmp_20; \ - _sc_21 = _tmp_21; \ - __asm__ __volatile__ \ - ("callsys # %0 %1 <= %2 %3 %4 %5 %6 %7 %8" \ - : inline_syscall_r0_out_constraint (_sc_0), \ - "=r"(_sc_19), "=r"(_sc_16), "=r"(_sc_17), \ - "=r"(_sc_18), "=r"(_sc_20), "=r"(_sc_21) \ - : "0"(_sc_0), "2"(_sc_16), "3"(_sc_17), "4"(_sc_18), \ - "1"(_sc_19), "5"(_sc_20), "6"(_sc_21) \ - : inline_syscall_clobbers); \ - _sc_ret = _sc_0, _sc_err = _sc_19; \ -} - -/* Pointer mangling support. Note that tls access is slow enough that - we don't deoptimize things by placing the pointer check value there. */ - -#include <stdint.h> - -#if defined NOT_IN_libc && defined IS_IN_rtld -# ifdef __ASSEMBLER__ -# define PTR_MANGLE(dst, src, tmp) \ - ldah tmp, __pointer_chk_guard_local($29) !gprelhigh; \ - ldq tmp, __pointer_chk_guard_local(tmp) !gprellow; \ - xor src, tmp, dst -# define PTR_MANGLE2(dst, src, tmp) \ - xor src, tmp, dst -# define PTR_DEMANGLE(dst, tmp) PTR_MANGLE(dst, dst, tmp) -# define PTR_DEMANGLE2(dst, tmp) PTR_MANGLE2(dst, dst, tmp) -# else -extern uintptr_t __pointer_chk_guard_local attribute_relro attribute_hidden; -# define PTR_MANGLE(var) \ - (var) = (__typeof (var)) ((uintptr_t) (var) ^ __pointer_chk_guard_local) -# define PTR_DEMANGLE(var) PTR_MANGLE(var) -# endif -#elif defined PIC -# ifdef __ASSEMBLER__ -# define PTR_MANGLE(dst, src, tmp) \ - ldq tmp, __pointer_chk_guard; \ - xor src, tmp, dst -# define PTR_MANGLE2(dst, src, tmp) \ - xor src, tmp, dst -# define PTR_DEMANGLE(dst, tmp) PTR_MANGLE(dst, dst, tmp) -# define PTR_DEMANGLE2(dst, tmp) PTR_MANGLE2(dst, dst, tmp) -# else -extern uintptr_t __pointer_chk_guard attribute_relro; -# define PTR_MANGLE(var) \ - (var) = (void *) ((uintptr_t) (var) ^ __pointer_chk_guard) -# define PTR_DEMANGLE(var) PTR_MANGLE(var) -# endif -#endif - -#endif /* ASSEMBLER */ |