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authorRoland McGrath <roland@gnu.org>1996-02-08 02:10:15 +0000
committerRoland McGrath <roland@gnu.org>1996-02-08 02:10:15 +0000
commit4ca84cff3b3e184164acde81deaad1fe52eabd14 (patch)
tree5a3f94f16ef8bd822bee58606b640c1e867aea95 /sysdeps/mach/hurd/i386/intr-msg.h
parent1ac3b08e9348daa948d4982f0a4363a6767196e1 (diff)
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Wed Feb 7 18:48:30 1996 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* hurd/hurdmsg.c (_S_msg_report_wait): Function removed. * hurd/report-wait.c: New file. * hurd/Makefile (routines): Added report-wait. * sysdeps/mach/hurd/Makefile (inhibit-unix-syscalls): New variable. * sysdeps/mach/hurd/i386/intr-msg.h (struct mach_msg_trap_args): New type. (SYSCALL_EXAMINE, MSG_EXAMINE): New inline functions. * sysdeps/mach/hurd/i386/trampoline.c (struct mach_msg_trap_args): Structure moved to intr-msg.h; include that. * time/Makefile (CFLAGS-ialloc.c): Add -Wno-unused. (CFLAGS-scheck.c): New variable. * sysdeps/mach/hurd/dl-sysdep.c (__hurd_sigthread_stack_base, __hurd_sigthread_stack_end, __hurd_sigthread_variables, __hurd_threadvar_stack_mask): New variables. * sysdeps/mach/hurd/fork.c: Set the new task's exception port to its new message port. * misc/init-misc.c: Put __init_misc in the __libc_subinit set. * configure.in (uname): Add quoting. * sysdeps/mach/hurd/fchdir.c: Don't consult errno unless lookup fails. * hurd/fchroot.c: Likewise. * posix/sys/types.h [GCC >= 2.7]: Define intN_t/u_intN_t using __attribute__ ((__mode__ (__XX__))). Wed Feb 7 03:24:05 1996 Torbjorn Granlund <tege@tmg.se> * sysdeps/i386/i586/memcopy.h (WORD_COPY_FWD): Manually allocate destination cache lines. (WORD_COPY_BWD): Likewise. Wed Feb 7 14:16:36 1996 Roland McGrath <roland@churchy.gnu.ai.mit.edu> * sysdeps/generic/Makefile (make_siglist): Get signum.h absolute file name first thing, before $(native-compile) changes directories. From Gord Matzigkeit <gord@enci.ucalgary.ca>: * sysdeps/unix/make_errlist.c: Use strerror if available. * sysdeps/unix/configure.in: New file * sysdeps/unix/bsd/sun/syscalls.list: Added sigvec. * sysdeps/unix/bsd/sun/sigvec.S: File removed. * sysdeps/stub/sendto.c: Make sockaddr arg pointer to const. * sysdeps/stub/connect.c: Likewise. * sysdeps/stub/bind.c: Likewise. * hurd/hurdlookup.c (__hurd_file_name_lookup_retry): RETRYNAME of "" is only special for FS_RETRY_NORMAL; for FS_RETRY_REAUTH, do another dir_lookup of "".
Diffstat (limited to 'sysdeps/mach/hurd/i386/intr-msg.h')
-rw-r--r--sysdeps/mach/hurd/i386/intr-msg.h55
1 files changed, 54 insertions, 1 deletions
diff --git a/sysdeps/mach/hurd/i386/intr-msg.h b/sysdeps/mach/hurd/i386/intr-msg.h
index 353a6d2acd..43d244a182 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 Free Software Foundation, Inc.
+Copyright (C) 1995, 1996 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
@@ -45,3 +45,56 @@ INTR_MSG_BACK_OUT (struct i386_thread_state *state)
else
state->ecx = state->uesp;
}
+
+#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;
+}
+
+
+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;
+ };
+
+
+static inline mach_port_t
+MSG_EXAMINE (struct i386_thread_state *state, int *msgid)
+{
+ const struct mach_msg_trap_args *args = (const void *) state->uesp;
+ mach_msg_header_t *msg;
+ mach_port_t send_port;
+
+ if (_hurdsig_catch_memory_fault (args))
+ return MACH_PORT_NULL;
+ msg = args->msg;
+ _hurdsig_end_catch_fault ();
+
+ if (_hurdsig_catch_memory_fault (msg))
+ return MACH_PORT_NULL;
+ send_port = msg->msgh_remote_port;
+ *msgid = msg->msgh_id;
+ _hurdsig_end_catch_fault ();
+
+ return send_port;
+}