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authorRoland McGrath <roland@gnu.org>1995-08-22 22:47:57 +0000
committerRoland McGrath <roland@gnu.org>1995-08-22 22:47:57 +0000
commit3cf595e562f955e399d80ea9d053e41d50469e6b (patch)
tree77ed930262ae9606543c580c4a3d69141c1bd561 /sysdeps/mach/hurd/i386/intr-msg.h
parent207eb76afba6503af9c4ab5711bfd76f9697c1ad (diff)
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Tue Aug 22 16:49:12 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* inet/netdb.h: Moved to resolv. * inet/Makefile (headers): Remove netdb.h. * resolv/Makefile (headers): Add netdb.h. * resolv/gethnamaddr.c, resolv/inet_addr.c, resolv/netdb.h, resolv/res_send.c: Updated from BIND-4.9.3-BETA26. * hurd/thread-cancel.c: If SS->cancel_hook is not null, call it before resuming the thread. * hurd/hurd/signal.h (struct hurd_sigstate): New member `cancel_hook'. * hurd/Makefile: Removed dep on hurd/signal.h for RPC stub objects. Mon Aug 21 16:37:09 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> * sysdeps/i386/dl-machine.h (elf_machine_rel): Grok R_386_NONE relocs, and do nothing. Why the linker generates them we may never know. * sysdeps/mach/hurd/i386/intr-msg.h: New file.
Diffstat (limited to 'sysdeps/mach/hurd/i386/intr-msg.h')
-rw-r--r--sysdeps/mach/hurd/i386/intr-msg.h47
1 files changed, 47 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/i386/intr-msg.h b/sysdeps/mach/hurd/i386/intr-msg.h
new file mode 100644
index 0000000000..353a6d2acd
--- /dev/null
+++ b/sysdeps/mach/hurd/i386/intr-msg.h
@@ -0,0 +1,47 @@
+/* Machine-dependent details of interruptible RPC messaging. i386 version.
+Copyright (C) 1995 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 Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+
+#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 %1, %%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" ((&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;
+}