diff options
Diffstat (limited to 'sysdeps/mach/hurd/i386/intr-msg.h')
| -rw-r--r-- | sysdeps/mach/hurd/i386/intr-msg.h | 90 |
1 files changed, 43 insertions, 47 deletions
diff --git a/sysdeps/mach/hurd/i386/intr-msg.h b/sysdeps/mach/hurd/i386/intr-msg.h index d862d5842a..dcfc5d4e4d 100644 --- a/sysdeps/mach/hurd/i386/intr-msg.h +++ b/sysdeps/mach/hurd/i386/intr-msg.h @@ -1,5 +1,5 @@ /* Machine-dependent details of interruptible RPC messaging. i386 version. - Copyright (C) 1995, 1996, 1997, 1999 Free Software Foundation, Inc. + Copyright (C) 1995,96,97,99,2001 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 @@ -53,20 +53,20 @@ INTR_MSG_BACK_OUT (struct i386_thread_state *state) #include "hurdfault.h" -static inline int -SYSCALL_EXAMINE (struct i386_thread_state *state, int *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 (); - return result; -} +/* 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 @@ -83,35 +83,31 @@ struct mach_msg_trap_args }; -static inline int -MSG_EXAMINE (struct i386_thread_state *state, int *msgid, - mach_port_t *rcv_name, mach_port_t *send_name, - mach_msg_option_t *option, mach_msg_timeout_t *timeout) -{ - const struct mach_msg_trap_args *args = (const void *) state->uesp; - mach_msg_header_t *msg; - - if (_hurdsig_catch_memory_fault (args)) - return -1; - msg = args->msg; - *option = args->option; - *timeout = args->timeout; - *rcv_name = 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 (); - } - - return 0; -} +/* 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; \ + }); \ +}) |