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In order to use MIG translation functions to lookup memory objects,
preprocessor macros have been introduced into the definition of
memory_object_t in 50cc5152.
The procedure definitions contain inlined type definitions in order to
change the type of the argument in question (i.e. to make it
polymorphic). The inline definitions however lack the destructor
function, leading to reference leaks when a reference is acquired in
the intran function.
* include/mach/memory_object.defs: Add the destructor functions to the
inlined type definitions.
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* ddb/db_command.c (db_command_table): Add "halt" command.
* i386/i386/db_interface.h (db_halt_cpu): New declaration.
* i386/i386at/model_dep.c (db_halt_cpu): New function.
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Currently, the size of struct vm_map is 68 bytes. By using a bit
field for the boolean flags, it can be made fit into a cache line.
* vm/vm_map.h (struct vm_map): Use a bit field for the boolean flags
wait_for_space and wiring_required.
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Commit b6dab094 introduced a way to include the MIG-generated server
files for the machine specific interface in ipc_kobject.c.
This broke out-of-tree builds. Here, 'machine' is a symlink to
'../i386/i386', it points into the source tree. The MIG-generated
files however are put in the build tree in i386/i386.
* i386/i386/machine_routines.h (MACHINE_SERVER_HEADER): Fix path.
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GNU MIG recently gained support for emitting x_server_routine
declarations in the generated server header file. Using this
declaration, the x_server_routine functions can be inlined into the
ipc_kobject_server function.
* kern/ipc_kobject.c: Include the MIG-generated server headers for the
machine-dependent interfaces.
(ipc_kobject_server): Drop the simple declaration of
MACHINE_SERVER_ROUTINE.
* i386/i386/machine_routines.h (MACHINE_SERVER_HEADER): New
definition.
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Previously, the definition of the host_slab_info RPC was guarded with
MACH_VM_DEBUG, even though it is not at all concerned with the VM
subsystem. Furthermore, there was no "skip" directive for
host_slab_info.
The function host_slab_info is guarded with MACH_DEBUG. The server
for the RPCs in mach_debug.defs is only used if MACH_DEBUG is
defined. There is no need to guard host_slab_info.
* include/mach_debug/mach_debug.defs (host_slab_info): Unconditionally
include the RPC.
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The task_set_name RPC introduced in 877a319c changed
include/mach/gnumach.defs to include mach_debug/mach_debug_types.defs.
Previously though, the debug headers were not installed.
* Makefrag.am: Install the mach_debug header files.
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The number of priorities has been changed from 32 to 50 in
6a234201081156e6d5742e7eeabb68418b518fad.
* doc/mach.texi: Update accordingly.
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* configure.ac (MIG): Error out if MiG was not found.
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* kern/bootstrap.c (boot_script_task_create): Set the name of newly
created tasks.
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Previously, every userspace server implementing the device protocol
filtered the device definitions to replace the device_t type with
mach_port_send_t to make the device argument of device_open
polymorphic. Rather than doing that, which makes it impossible to use
translation functions, fix the definition of device_open.
* include/device/device.defs (device_open): Redefine the device
argument to make it polymorphic unless a outran function is specified.
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Make the intran, outtran and destructor functions mutable using
preprocessor macros. Make it possible to inject imports using the
DEVICE_IMPORTS macro. This way, userspace servers can provide their
own translation functions.
* include/device/device_types.defs: Honor DEVICE_IMPORTS.
(device_t): Make the translation mutable using preprocessor macros.
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Make the intran, outtran and destructor functions mutable using
preprocessor macros. Make it possible to inject imports using the
NOTIFY_IMPORTS macro. This way, userspace servers can provide their
own translation functions.
* include/mach/notify.defs: Honor NOTIFY_IMPORTS.
(notify_port_t): Make the translation mutable using preprocessor macros.
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Convert from K&R style function definitions to ANSI style
function definitions.
* ddb/db_access.c: Convert function prototypes from K&R to ANSI.
* ddb/db_aout.c: Likewise.
* ddb/db_break.c: Likewise.
* ddb/db_command.c: Likewise.
* ddb/db_cond.c: Likewise.
* ddb/db_examine.c: Likewise.
* ddb/db_expr.c: Likewise.
* ddb/db_ext_symtab.c: Likewise.
* ddb/db_input.c: Likewise.
* ddb/db_lex.c: Likewise.
* ddb/db_macro.c: Likewise.
* ddb/db_mp.c: Likewise.
* ddb/db_output.c: Likewise.
* ddb/db_print.c: Likewise.
* ddb/db_run.c: Likewise.
* ddb/db_sym.c: Likewise.
* ddb/db_task_thread.c: Likewise.
* ddb/db_trap.c: Likewise.
* ddb/db_variables.c: Likewise.
* ddb/db_watch.c: Likewise.
* device/blkio.c: Likewise.
* device/chario.c: Likewise.
* device/dev_lookup.c: Likewise.
* device/dev_name.c: Likewise.
* device/dev_pager.c: Likewise.
* device/ds_routines.c: Likewise.
* device/net_io.c: Likewise.
* device/subrs.c: Likewise.
* i386/i386/db_interface.c: Likewise.
* i386/i386/fpu.c: Likewise.
* i386/i386/io_map.c: Likewise.
* i386/i386/loose_ends.c: Likewise.
* i386/i386/mp_desc.c: Likewise.
* i386/i386/pcb.c: Likewise.
* i386/i386/phys.c: Likewise.
* i386/i386/trap.c: Likewise.
* i386/i386/user_ldt.c: Likewise.
* i386/i386at/com.c: Likewise.
* i386/i386at/kd.c: Likewise.
* i386/i386at/kd_event.c: Likewise.
* i386/i386at/kd_mouse.c: Likewise.
* i386/i386at/kd_queue.c: Likewise.
* i386/i386at/lpr.c: Likewise.
* i386/i386at/model_dep.c: Likewise.
* i386/i386at/rtc.c: Likewise.
* i386/intel/pmap.c: Likewise.
* i386/intel/read_fault.c: Likewise.
* ipc/ipc_entry.c: Likewise.
* ipc/ipc_hash.c: Likewise.
* ipc/ipc_kmsg.c: Likewise.
* ipc/ipc_marequest.c: Likewise.
* ipc/ipc_mqueue.c: Likewise.
* ipc/ipc_notify.c: Likewise.
* ipc/ipc_port.c: Likewise.
* ipc/ipc_right.c: Likewise.
* ipc/mach_debug.c: Likewise.
* ipc/mach_msg.c: Likewise.
* ipc/mach_port.c: Likewise.
* ipc/mach_rpc.c: Likewise.
* kern/act.c: Likewise.
* kern/exception.c: Likewise.
* kern/ipc_mig.c: Likewise.
* kern/ipc_tt.c: Likewise.
* kern/lock_mon.c: Likewise.
* kern/mach_clock.c: Likewise.
* kern/machine.c: Likewise.
* kern/printf.c: Likewise.
* kern/priority.c: Likewise.
* kern/startup.c: Likewise.
* kern/syscall_emulation.c: Likewise.
* kern/syscall_subr.c: Likewise.
* kern/thread_swap.c: Likewise.
* kern/time_stamp.c: Likewise.
* kern/timer.c: Likewise.
* kern/xpr.c: Likewise.
* vm/memory_object.c: Likewise.
* vm/vm_debug.c: Likewise.
* vm/vm_external.c: Likewise.
* vm/vm_fault.c: Likewise.
* vm/vm_kern.c: Likewise.
* vm/vm_map.c: Likewise.
* vm/vm_pageout.c: Likewise.
* vm/vm_user.c: Likewise.
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* linux/dev/glue/block.c (device_set_status): Fix prototype.
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* device/conf.h: Include <sys/types.h>, <mach/port.h>, <mach/vm_prot.h>.
Predefine struct io_req, io_req_t and io_return_t.
(dev_ops): Add explicit prototypes for d_open, d_close, d_read, d_write,
d_getstat, d_setstat, d_mmap, d_port_death.
(nulldev_open, nulldev_close, nulldev_read, nulldev_write,
nulldev_getstat, nulldev_setstat, nulldev_portdeath): Add prototypes.
(nomap): Fix prototype.
* device/dev_name.c (nulldev_open, nulldev_close, nulldev_read,
nulldev_write, nulldev_getstat, nulldev_setstat, nulldev_portdeath): New
functions.
(nomap): Fix prototype.
* device/ds_routines.c (dev_close): Pass 0 as flag parameter.
* device/kmsg.c (kmsgclose): Drop return value.
* device/kmsg.h (kmsgclose): Fix prototype.
* i386/i386at/com.c (comopen): Fix prototype.
(comclose): Fix prototype, drop return value.
(comread, comwrite): Fix prototype.
* i386/i386at/com.h (comopen, comclose, comread, comwrite): Fix
prototype.
* i386/i386at/conf.c (dev_ops): Use nulldev_open, nulldev_close,
nulldev_read, nulldev_write, nulldev_getstat, nulldev_setstat,
nulldev_portdeath where appropriate.
* i386/i386at/kd.c (kdclose, kdread, kdwrite, kdmmap): Fix prototype.
* i386/i386at/kd.h (kdclose, kdread, kdwrite, kdmmap): Likewise.
* i386/i386at/kd_event.c (kbdopen): Likewise.
* i386/i386at/kd_event.h (kbdopen): Likewise.
* i386/i386at/kd_mouse.c (mouseopen): Likewise.
* i386/i386at/kd_mouse.h (mouseopen): Likewise.
* i386/i386at/lpr.c (lpropen, lprclose, lprread, lprwrite): Likewise.
* i386/i386at/lpr.h (lpropen, lprclose, lprread, lprwrite): Likewise.
* i386/i386at/mem.c (memmmap): Likewise.
* i386/i386at/mem.h (memmmap): Likewise.
* i386/i386at/model_dep.c (timemmap): Likewise.
* i386/i386at/model_dep.h (timemmap): Likewise.
* kern/mach_clock.c (timeopen, timeclose): Likewise.
* kern/mach_clock.h: Include <sys/types.h>, predefine struct io_req and
io_req_t.
(timeopen, timeclose): Fix prototype.
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CGA and MONO cards are more than hard to find nowadays, and some buggy BIOSes
claim running them nowadays...
* i386/i386at/kd.c (kd_xga_init): Do not handle CGA and MONO cases any
more, which thus default to EGA/VGA.
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* i386/i386at/kd.c (kd_xga_init): Use CM_EGA_VGA behavior as default
case for unknown values of CMOS data.
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Previously, bootstrap_create would print the multiboot modules with
padding applied to the end of the line. As multiboot modules as used
by the Hurd span more than one line. This makes the list of modules
hard to read and it looks unclean, more like an accident.
Furthermore, it is not clear what the intend of this was, as the
padding is applied at the end of the line, with no further information
printed thereafter.
* kern/bootstrap.c (bootstrap_create): Remove variable maxlen and len,
update printfs.
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Make the intran, outtran and destructor functions mutable using
preprocessor macros. Make it possible to inject imports using the
MEMORY_OBJECT_IMPORTS macro. This way, userspace servers can provide
their own translation functions.
* include/mach/mach_types.defs (memory_object_t): Make the translation
mutable using preprocessor macros.
* include/mach/memory_object.defs: Likewise for the inlined type declarations.
Honor MEMORY_OBJECT_IMPORTS.
* include/mach/memory_object_default.defs: Likewise.
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We were filling much more than the mapwindows array, thus overwriting in
at least debugger variables.
* i386/intel/pmap.c (pmap_bootstrap): Make sure to limit mapwindows
initialization within PMAP_NMAPWINDOWS.
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Previously, the error KERN_RESOURCE_SHORTAGE was not properly
propagated.
Found using the Clang Static Analyzer.
* xen/block.c (device_open): Fix error handling, remove unused label.
* xen/net.c (device_open): Likewise.
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* xen/console.c (hypputc): Make `complain' variable static.
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by reducing possible number of partitions to 32.
* linux/dev/drivers/block/ahci.c (MAX_PORTS): Set to 8.
(PARTN_BITS): Set to 5.
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PCI devices expose their memory etc. way beyond last_phys_addr. Userland
drivers opening /dev/mem need to open those too, even if phystokv() will
not work for them.
* i386/intel/pmap.h (pmap_mapwindow_t): New type.
(pmap_get_mapwindow, pmap_put_mapwindow): New prototypes.
(PMAP_NMAPWINDOWS): New macro.
* i386/intel/pmap.c (mapwindows): New array.
(pmap_get_mapwindow, pmap_put_mapwindow): New functions.
(pmap_bootstrap, pmap_virtual_space): Reserve virtual pages for the mapping
windows.
* i386/i386/phys.c: Include <i386/model_dep.h>
(INTEL_PTE_W, INTEL_PTE_R): New macros
(pmap_zero_page, pmap_copy_page, copy_to_phys, copy_from_phys): Use
`pmap_get_mapwindow' to temporarily map physical pages beyond last_phys_addr.
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Previously, the function mig_strncpy would always zero-terminate the
destination string. Make mig_strncpy behave like mig_strncpy and
strncpy in the glibc. Also fix the implementation of mig_strncpy to
return the length of the written string to align the implementation
with the declaration in include/mach/mig_support.h.
* kern/ipc_mig.c (mig_strncpy): Do not zero-terminate the destination
string. Return length of destination string.
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* linux/dev/drivers/block/ahci.c (struct port): Add id and is_cd fields.
(ahci_end_request): Only print error if quiet flag of the request is not
set.
(ahci_do_port_request): Upgrade sector parameter to 64 bit. Include
those bits in the LBA48 request.
(ahci_do_request): Upgrade sector count to 64bit. Only print errors if
quiet flag of the request is not set.
(ahci_probe_port): Move identify code...
(ahci_identify): ... to new function. Handle WIN_PIDENTIFY case to
recognize ATAPI devices.
(ahci_probe_port): Also try WIN_PIDENTIFY command.
(ahci_geninit): Avoid checking partition table on empty devices.
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* include/mach/mach_port.defs: Skip the routines mach_port_set_rpcinfo
and mach_port_create_act if MIGRATING_THREADS is not defined.
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* kern/slab.c (KMEM_MAP_SIZE): Decrease from 128MiB to 96MiB.
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* linux/src/drivers/block/ide-cd.c (ide_cdrom_open): Return -ENXIO when
CD sense failed.
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* linux/src/drivers/block/ide-cd.c (cdrom_queue_packet_command): Add `quiet'
parameter, copied into the request.
(cdrom_decode_status): Do not print I/O error when `quiet' field of
request is non-zero.
(cdrom_end_request): Do not print sense results when `quiet' field of
request is non-zero.
(cdrom_check_status, cdrom_read_capacity, cdrom_read_tocentry): Pass 1 to
`cdrom_queue_packet_command''s `quiet' parameter.
(cdrom_lockdoor, cdrom_eject, cdrom_pause, cdrom_startstop,
cdrom_read_subchannel, cdrom_mode_sense, cdrom_mode_select,
cdrom_play_lba_range_1, cdrom_read_block, cdrom_load_unload,
ide_cdrom_ioctl): Pass 0 to `cdrom_queue_packet_command''s `quiet' parameter.
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* linux/src/drivers/block/ide.c (ide_init_drive_cmd): Initialize `quiet'
field of request to 0;
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This avoids grub & such making Mach print flurries of floppy errors.
* linux/dev/include/linux/blkdev.h (request): Add `quiet' field.
* linux/dev/include/linux/blk.h (end_request): Print I/O error only if
the `quiet' field of the request is 0.
* linux/dev/include/linux/fs.h (ll_rw_block): Add `quiet' parameter.
* linux/dev/glue/block.c (ll_rw_block): Add `quiet' parameter, copied into
the request.
(bread, rdwr_partial, rdwr_full): Pass 0 to `ll_rw_block''s `quiet' parameter.
* linux/dev/drivers/block/floppy.c (floppy_revalidate): Pass 1 to
`ll_rw_block''s `quiet' parameter.
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In addition to physical pages, the slab allocator also consumes kernel
virtual memory, so reclaim pages on failure to allocate from a kernel map.
This method isn't foolproof but helps alleviate fragmentation.
* vm/vm_kern.c (kmem_alloc): Call slab_collect and retry allocation
once on failure.
(kmem_realloc): Likewise.
(kmem_alloc_wired): Likewise.
(kmem_alloc_wired): Likewise.
(kmem_alloc_aligned): Likewise.
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* device/net_io.c (net_rcv_port_t, net_hash_entry_t, net_hash_header_t):
Remove duplicate typedefs.
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* doc/mach.texi (Task Information): Document the new task_set_name
procedure.
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task_set_name sets the name of a task. This is a debugging aid. The
name will be used in error messages printed by the kernel.
* include/mach/gnumach.defs (task_set_name): New procedure.
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task_set_name sets the name of a task. This is a debugging aid. The
name will be used in error messages printed by the kernel.
* kern/task.c (task_set_name): New function.
* kern/task.h (task_set_name): New declaration.
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Found by Coverity
* i386/i386at/com.c (comstart): Make `nch' an int. When `getc' returns
-1, just return.
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Found by Coverity
* i386/i386/user_ldt.c (i386_get_ldt): Fetch `pcb' field of `thread'
only after looking for `thread' being NULL.
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* vm/vm_kern.c (projected_buffer_deallocate): Look for `map' being NULL
or kernel_map before locking it.
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Found by Coverity
* i386/i386/db_trace.c (db_find_kthread): Handle case when task is NULL.
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Found by Coverity.
* i386/i386at/com.c (comopen): On com_reprobe() returning success, check
for `isai' again.
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Previously, only strlen(device_name) bytes were allocated, missing one
byte for the terminating zero.
* xen/block.c (hyp_block_init): Fix buffer size.
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Use strncpy instead of strcpy to copy the name of a symbol into the
symtab structure. Make sure that the string is properly terminated.
Found using Coverity.
* ddb/db_sym.c (db_add_symbol_table): Use strncpy instead of strcpy,
ensure string termination.
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The slab allocator relies on the fact that kmem_cache_error does not
return. Previously, kmem_error was using printf. Use panic instead.
Found using the Clang Static Analyzer.
* kern/slab.c (kmem_error): Use panic instead of printf.
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