diff options
Diffstat (limited to 'sysdeps/mach/hurd/i386/intr-msg.h')
| -rw-r--r-- | sysdeps/mach/hurd/i386/intr-msg.h | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/sysdeps/mach/hurd/i386/intr-msg.h b/sysdeps/mach/hurd/i386/intr-msg.h deleted file mode 100644 index 43cd79bc28..0000000000 --- a/sysdeps/mach/hurd/i386/intr-msg.h +++ /dev/null @@ -1,112 +0,0 @@ -/* Machine-dependent details of interruptible RPC messaging. i386 version. - Copyright (C) 1995-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - 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/>. */ - - -/* Note that we must mark OPTION and TIMEOUT as outputs of this operation, - to indicate that the signal thread might mutate them as part - of sending us to a signal handler. */ -#define INTR_MSG_TRAP(msg, option, send_size, rcv_size, rcv_name, timeout, notify) \ -({ \ - error_t err; \ - asm (".globl _hurd_intr_rpc_msg_do_trap\n" \ - ".globl _hurd_intr_rpc_msg_in_trap\n" \ - ".globl _hurd_intr_rpc_msg_cx_sp\n" \ - ".globl _hurd_intr_rpc_msg_sp_restored\n" \ - " movl %%esp, %%ecx\n" \ - " leal %3, %%esp\n" \ - "_hurd_intr_rpc_msg_cx_sp: movl $-25, %%eax\n" \ - "_hurd_intr_rpc_msg_do_trap: lcall $7, $0 # status in %0\n" \ - "_hurd_intr_rpc_msg_in_trap: movl %%ecx, %%esp\n" \ - "_hurd_intr_rpc_msg_sp_restored:" \ - : "=a" (err), "+m" (option), "+m" (timeout) \ - : "m" ((&msg)[-1]) \ - : "ecx"); \ - err; \ -}) - - -static void inline -INTR_MSG_BACK_OUT (struct i386_thread_state *state) -{ - extern const void _hurd_intr_rpc_msg_cx_sp; - if (state->eip >= (natural_t) &_hurd_intr_rpc_msg_cx_sp) - state->uesp = state->ecx; - else - state->ecx = state->uesp; -} - -#include "hurdfault.h" - -/* This cannot be an inline function because it calls setjmp. */ -#define SYSCALL_EXAMINE(state, callno) \ -({ \ - struct { unsigned int c[2]; } *p = (void *) ((state)->eip - 7); \ - int result; \ - if (_hurdsig_catch_memory_fault (p)) \ - return 0; \ - if (result = p->c[0] == 0x0000009a && (p->c[1] & 0x00ffffff) == 0x00000700) \ - /* The PC is just after an `lcall $7,$0' instruction. \ - This is a system call in progress; %eax holds the call number. */ \ - *(callno) = (state)->eax; \ - _hurdsig_end_catch_fault (); \ - result; \ -}) - - -struct mach_msg_trap_args - { - void *retaddr; /* Address mach_msg_trap will return to. */ - /* This is the order of arguments to mach_msg_trap. */ - mach_msg_header_t *msg; - mach_msg_option_t option; - mach_msg_size_t send_size; - mach_msg_size_t rcv_size; - mach_port_t rcv_name; - mach_msg_timeout_t timeout; - mach_port_t notify; - }; - - -/* This cannot be an inline function because it calls setjmp. */ -#define MSG_EXAMINE(state, msgid, rcvname, send_name, opt, tmout) \ -({ \ - const struct mach_msg_trap_args *args = (const void *) (state)->uesp; \ - mach_msg_header_t *msg; \ - _hurdsig_catch_memory_fault (args) ? -1 : \ - ({ \ - msg = args->msg; \ - *(opt) = args->option; \ - *(tmout) = args->timeout; \ - *(rcvname) = args->rcv_name; \ - _hurdsig_end_catch_fault (); \ - if (msg == 0) \ - { \ - *(send_name) = MACH_PORT_NULL; \ - *(msgid) = 0; \ - } \ - else \ - { \ - if (_hurdsig_catch_memory_fault (msg)) \ - return -1; \ - *(send_name) = msg->msgh_remote_port; \ - *(msgid) = msg->msgh_id; \ - _hurdsig_end_catch_fault (); \ - } \ - 0; \ - }); \ -}) |