AuroraMiddleware/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-11-21 12:30:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

Update code to handle the new ABI for sending inlined port rights.

Browse Source 
For i686, this change is no op but for x86_64 it forces all inlined port
rights to be 8 bytes long.
Message-ID: <20231124213041.952886-2-flaviocruz@gmail.com>
This commit is contained in:
Flavio Cruz 2023-11-24 16:30:38 -05:00 committed by Samuel Thibault
parent 2fb85a3787
commit 7e23b3c2c0
2 changed files with 33 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
hurd/intr-msg.c
View File

@ -199,6 +199,28 @@ _hurd_intr_rpc_mach_msg (mach_msg_header_t *msg,
__vm_deallocate (__mach_task_self (), (vm_address_t) data, length);
}
inline void clean_inlined_ports (mach_port_name_inlined_t *ports)
{
mach_msg_type_number_t i;
switch (name)
{
case MACH_MSG_TYPE_MOVE_SEND:
for (i = 0; i < number; i++)
__mach_port_deallocate (__mach_task_self (), ports[i].name);
if (ty->msgtl_header.msgt_longform)
ty->msgtl_name = MACH_MSG_TYPE_COPY_SEND;
else
ty->msgtl_header.msgt_name = MACH_MSG_TYPE_COPY_SEND;
break;
case MACH_MSG_TYPE_COPY_SEND:
case MACH_MSG_TYPE_MOVE_RECEIVE:
break;
default:
if (MACH_MSG_TYPE_PORT_ANY (name))
assert (! "unexpected port type in interruptible RPC");
}
}
char *data;
if (ty->msgtl_header.msgt_longform)
{
@ -215,11 +237,11 @@ _hurd_intr_rpc_mach_msg (mach_msg_header_t *msg,
data = (char *) ty + sizeof (mach_msg_type_t);
}
/* Calculate length of data in bytes. */
const vm_size_t length = ((number * size) + 7) >> 3;
if (ty->msgtl_header.msgt_inline)
{
/* Calculate length of data in bytes. */
clean_ports_and_memory (data, length, 0);
clean_inlined_ports (data);
/* Move to the next argument. */
ty = (void *) PTR_ALIGN_UP (data + length, __alignof__ (uintptr_t));
}

12
mach/msg-destroy.c
View File

@ -108,11 +108,17 @@ __mach_msg_destroy (mach_msg_header_t *msg)
addr = is_inline ? saddr : * (vm_offset_t *) saddr;
if (MACH_MSG_TYPE_PORT_ANY(name)) {
mach_port_t *ports = (mach_port_t *) addr;
mach_msg_type_number_t i;
for (i = 0; i < number; i++)
mach_msg_destroy_port(*ports++, name);
if (is_inline) {
mach_port_name_inlined_t *inlined_ports = (mach_port_name_inlined_t *)addr;
for (i = 0; i < number; i++)
mach_msg_destroy_port(inlined_ports[i].name, name);
} else {
mach_port_t *ports = (mach_port_t *) addr;
for (i = 0; i < number; i++)
mach_msg_destroy_port(ports[i], name);
}
}
if (is_inline) {