From 7e23b3c2c008e0b9b5da055e675d40cc27bb10ef Mon Sep 17 00:00:00 2001 From: Flavio Cruz Date: Fri, 24 Nov 2023 16:30:38 -0500 Subject: Update code to handle the new ABI for sending inlined port rights. 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> --- hurd/intr-msg.c | 26 ++++++++++++++++++++++++-- 1 file changed, 24 insertions(+), 2 deletions(-) (limited to 'hurd') diff --git a/hurd/intr-msg.c b/hurd/intr-msg.c index 24184f827f..d52e90449e 100644 --- a/hurd/intr-msg.c +++ b/hurd/intr-msg.c @@ -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)); } -- cgit 1.4.1