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hurd: drop elder MACH_IPC_COMPAT handling

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This was dropped from GNU Mach in 2006.

	* mach/Machrules (MIGFLAGS): Do not set -DMACH_IPC_COMPAT=0.
	* mach/mach/mach_traps.h: Drop comment about MACH_IPC_COMPAT.
	* sysdeps/mach/hurd/fork.c (__fork): Drop special casing
	MACH_IPC_COMPAT.
This commit is contained in:
Samuel Thibault 2018-01-27 21:40:08 +01:00
parent 903d3633ec
commit 7dab2d00ee
4 changed files with 9 additions and 35 deletions
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4
ChangeLog
View File

@ -21,6 +21,10 @@
--disable-libcilkrts to gcc configure.
* sysdeps/mach/hurd/Makefile [$(subdir)==nis]: Add
-DUSE_BINDINGDIR=1 to CFLAGS-ypclnt.c.
* mach/Machrules (MIGFLAGS): Do not set -DMACH_IPC_COMPAT=0.
* mach/mach/mach_traps.h: Drop comment about MACH_IPC_COMPAT.
* sysdeps/mach/hurd/fork.c (__fork): Drop special casing
MACH_IPC_COMPAT.
2018-01-27 James Clarke <jrtc27@jrtc27.com>

2
mach/Machrules
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@ -51,7 +51,7 @@ $(objpfx)dummy.mk:
$(make-target-directory)
echo '# Empty' > $@
MIGFLAGS = -DMACH_IPC_COMPAT=0 -DSTANDALONE -DTypeCheck=0 \
MIGFLAGS = -DSTANDALONE -DTypeCheck=0 \
$(+includes) $(migdefines) -subrprefix __
# Putting CC in the enivronment makes the mig wrapper script
# use the same compiler setup we are using to run cpp.

3
mach/mach/mach_traps.h
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@ -17,8 +17,7 @@
/* Declare the few Mach system calls (except mach_msg, in <mach/message.h>).
This does not include the kernel RPC shortcut calls (in <mach-shortcuts.h>).
This file omits the MACH_IPC_COMPAT functions. */
*/
#ifndef _MACH_MACH_TRAPS_H

35
sysdeps/mach/hurd/fork.c
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@ -213,38 +213,9 @@ __fork (void)
{
/* This is a receive right. We want to give the child task
its own new receive right under the same name. */
err = __mach_port_allocate_name (newtask,
MACH_PORT_RIGHT_RECEIVE,
portnames[i]);
if (err == KERN_NAME_EXISTS)
{
/* It already has a right under this name (?!). Well,
there is this bizarre old Mach IPC feature (in #ifdef
MACH_IPC_COMPAT in the ukernel) which results in new
tasks getting a new receive right for task special
port number 2. What else might be going on I'm not
sure. So let's check. */
#if !MACH_IPC_COMPAT
#define TASK_NOTIFY_PORT 2
#endif
assert (({ mach_port_t thisport, notify_port;
mach_msg_type_name_t poly;
(__task_get_special_port (newtask,
TASK_NOTIFY_PORT,
&notify_port) == 0 &&
__mach_port_extract_right
(newtask,
portnames[i],
MACH_MSG_TYPE_MAKE_SEND,
&thisport, &poly) == 0 &&
(thisport == notify_port) &&
__mach_port_deallocate (__mach_task_self (),
thisport) == 0 &&
__mach_port_deallocate (__mach_task_self (),
notify_port) == 0);
}));
}
else if (err)
if (err = __mach_port_allocate_name (newtask,
MACH_PORT_RIGHT_RECEIVE,
portnames[i]))
LOSE;
if (porttypes[i] & MACH_PORT_TYPE_SEND)
{