John Baldwin feeaec18d4 Only clear a pending thread event if one is pending. ...

This fixes a panic when attaching to an already-stopped process after
r325028.  While here, clean up a few other things in the control flow
of the 'sendsig' section:
- Only check for P_STOPPED_TRACE rather than either of P_STOPPED_SIG
  or P_STOPPED_TRACE for most ptrace requests.  The signal handling
  code in kern_sig.c never sets just P_STOPPED_SIG for a traced
  process, so if P_STOPPED_SIG is stopped, P_STOPPED_TRACE should be
  set anyway.  Remove a related debug printf.  Assuming P_STOPPED_TRACE
  permits simplifications in the 'sendsig:' block.
- Move the block to clear the pending thread state up into a new
  block conditional on P_STOPPED_TRACE and handle delivering pending
  signals to the reporting thread and clearing the reporting thread's
  state in this block.
- Consolidate case to send a signal to the process in a single case
  for PT_ATTACH.  The only case that could have been in the else before
  was a PT_ATTACH where P_STOPPED_SIG was not set, so both instances
  of kern_psignal() collapse down to just PT_ATTACH.

Reported by:	pho, mmel
Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D12837

2017-11-13 19:58:58 +00:00

..

bus_if.m

"Buses" is the preferred plural of "bus"

2017-01-15 17:54:01 +00:00

capabilities.conf

allow posix_fallocate in capability mode

2017-10-12 15:45:53 +00:00

clock_if.m

…

cpufreq_if.m

…

device_if.m

Import the 'iflib' API library for network drivers. From the author:

2016-05-18 04:35:58 +00:00

genassym.sh

Don't prefix zero with 0x in assym.s.

2017-04-13 15:43:44 +00:00

imgact_aout.c

Revert r323722. A better fix will be committed shortly, as well as

2017-09-28 08:38:24 +00:00

imgact_binmisc.c

tighten buffer bounds in imgact_binmisc_populate_interp

2017-03-21 18:02:14 +00:00

imgact_elf32.c

…

imgact_elf64.c

…

imgact_elf.c

Add AT_HWCAP2 ELF auxiliary vector.

2017-10-21 12:05:01 +00:00

imgact_gzip.c

…

imgact_shell.c

ANSI-fy exec_shell_imgact().

2017-11-04 15:41:08 +00:00

inflate.c

Remove register keyword from sys/ and ANSIfy prototypes

2017-05-17 00:34:34 +00:00

init_main.c

Introduce EVENTHANDLER_LIST and some users.

2017-11-09 22:51:48 +00:00

init_sysent.c

regen init_sysent.c r324560

2017-10-12 15:48:37 +00:00

kern_acct.c

Commit the 64-bit inode project.

2017-05-23 09:29:05 +00:00

kern_alq.c

Use SI_SUB_LAST instead of SI_SUB_SMP as the "catch-all" subsystem.

2016-03-11 23:18:06 +00:00

kern_clock.c

Remove register keyword from sys/ and ANSIfy prototypes

2017-05-17 00:34:34 +00:00

kern_clocksource.c

Remove cpu_deepest_sleep variable.

2017-02-24 16:11:55 +00:00

kern_condvar.c

Introduce SCHEDULER_STOPPED_TD for use when the thread pointer was already read

2017-02-17 06:45:04 +00:00

kern_conf.c

Undo r309891. Konstantin is right in that this condition normally

2016-12-12 19:11:04 +00:00

kern_cons.c

Renumber license clauses in sys/kern to avoid skipping #3

2016-09-15 13:16:20 +00:00

kern_context.c

…

kern_cpu.c

Add an EARLY_AP_STARTUP option to start APs earlier during boot.

2016-05-14 18:22:52 +00:00

kern_cpuset.c

Fix size to copyout(9) for cpuset_getid(2).

2017-08-22 20:46:29 +00:00

kern_ctf.c

Fix improper use of "its".

2016-11-08 23:59:41 +00:00

kern_descrip.c

ddb show files: fix up file types and whitespace

2017-06-14 07:46:52 +00:00

kern_dtrace.c

Sprinkle __read_frequently on few obvious places.

2017-09-06 20:33:33 +00:00

kern_dump.c

Move kernel dump offset tracking into MI code.

2017-10-18 15:38:05 +00:00

kern_environment.c

Create wrappers for uint64_t and int64_t for the tunables. While not

2016-04-15 03:09:55 +00:00

kern_et.c

Add labels to sysctls related to clocks.

2016-12-14 12:56:58 +00:00

kern_event.c

Add pfind_any

2017-11-11 18:04:39 +00:00

kern_exec.c

Introduce EVENTHANDLER_LIST and some users.

2017-11-09 22:51:48 +00:00

kern_exit.c

Introduce EVENTHANDLER_LIST and some users.

2017-11-09 22:51:48 +00:00

kern_fail.c

Avoid open-coding PRI_UNCHANGED.

2017-05-18 18:24:11 +00:00

kern_ffclock.c

kernel: use our nitems() macro when it is available through param.h.

2016-04-19 23:48:27 +00:00

kern_fork.c

Introduce EVENTHANDLER_LIST and some users.

2017-11-09 22:51:48 +00:00

kern_gzio.c

Add support for compressed kernel dumps.

2017-10-25 00:51:00 +00:00

kern_hhook.c

Get closer to a VIMAGE network stack teardown from top to bottom rather

2016-06-21 13:48:49 +00:00

kern_idle.c

…

kern_intr.c

Extend cpuset_get/setaffinity() APIs

2017-05-03 18:41:08 +00:00

kern_jail.c

Jails: Optionally prevent jailed root from binding to privileged ports

2017-06-06 02:15:00 +00:00

kern_khelp.c

…

kern_kthread.c

Re-schedule signals after kthread exits, since apparently there are

2016-08-10 13:47:12 +00:00

kern_ktr.c

Fix a couple of comment typos

2017-08-15 02:21:02 +00:00

kern_ktrace.c

Ktracing kevent(2) calls with unusual arguments might leads to an

2017-03-12 13:48:24 +00:00

kern_linker.c

sysctl-s in a module should be accessible only when the module is initialized

2017-10-05 12:32:14 +00:00

kern_lock.c

lockmgr: implement fast path

2017-02-12 09:49:44 +00:00

kern_lockf.c

put very expensive sanity checks of advisory locks under DIAGNOSTIC

2017-01-30 15:20:13 +00:00

kern_lockstat.c

Sprinkle __read_frequently on few obvious places.

2017-09-06 20:33:33 +00:00

kern_loginclass.c

Fixup r325264, take #2

2017-11-01 06:46:58 +00:00

kern_malloc.c

Renumber license clauses in sys/kern to avoid skipping #3

2016-09-15 13:16:20 +00:00

kern_mbuf.c

Improvements to sendfile(2) mbuf free routine.

2017-10-09 21:06:16 +00:00

kern_mib.c

All these files need sys/vmmeter.h, but now they got it implicitly

2017-04-17 17:07:00 +00:00

kern_module.c

…

kern_mtxpool.c

sys/kern: spelling fixes in comments.

2016-04-29 22:15:33 +00:00

kern_mutex.c

mtx: implement thread lock fastpath

2017-10-21 22:40:09 +00:00

kern_ntptime.c

ANSIfy kern_ntptime.c

2017-01-25 20:22:32 +00:00

kern_numa.c

Remove unneeded include of vm_phys.h.

2017-04-17 16:51:04 +00:00

kern_osd.c

osd(9): Change array pointer to array pointer type from void*

2016-04-26 19:57:35 +00:00

kern_physio.c

Add four new RCTL resources - readbps, readiops, writebps and writeiops,

2016-04-07 04:23:25 +00:00

kern_pmc.c

Cast values to (int) before comparing them to the range of the

2017-02-24 01:39:12 +00:00

kern_poll.c

…

kern_priv.c

…

kern_proc.c

Be more careful when doing calculation with request from userland.

2017-11-13 07:47:43 +00:00

kern_procctl.c

reaper: Make REAPER_KILL_SUBTREE actually work.

2016-12-14 22:49:20 +00:00

kern_prot.c

Add security.bsd.see_jail_proc

2017-05-23 16:59:24 +00:00

kern_racct.c

try to fix RACCT_RSS accounting

2017-02-14 13:54:05 +00:00

kern_rangelock.c

…

kern_rctl.c

sys/kern: spelling fixes in comments.

2016-04-29 22:15:33 +00:00

kern_resource.c

Save on uihash table locking by checking if the caller already uses the struct

2017-11-01 05:51:20 +00:00

kern_rmlock.c

Corrected misspelled versions of rendezvous.

2017-04-09 02:00:03 +00:00

kern_rwlock.c

rwlock: use fcmpset for setting RW_LOCK_WRITE_SPINNER

2017-11-11 09:34:11 +00:00

kern_sdt.c

sdt: make all sdt probe sites test one variable

2017-10-22 20:22:23 +00:00

kern_sema.c

…

kern_sendfile.c

Address two problems with sendfile(..., SF_NOCACHE) and apply one

2017-10-13 16:31:50 +00:00

kern_sharedpage.c

…

kern_shutdown.c

Handle RB_POWERCYCLE in the MI part of the kernel

2017-10-25 15:30:44 +00:00

kern_sig.c

Use pfind_any in linux_rt_sigqueueinfo and kern_sigqueue

2017-11-11 18:10:09 +00:00

kern_switch.c

Add comments explaining unobvious td_critnest adjustments in

2017-01-22 19:41:42 +00:00

kern_sx.c

locks: take the number of readers into account when waiting

2017-10-05 19:18:02 +00:00

kern_synch.c

- Remove 'struct vmmeter' from 'struct pcpu', leaving only global vmmeter

2017-04-17 17:34:47 +00:00

kern_syscalls.c

…

kern_sysctl.c

sysctl: try to avoid malloc in name2oid

2017-11-11 21:50:36 +00:00

kern_tc.c

The th_bintime, th_microtime and th_nanotime members of the timehand

2017-10-11 11:03:11 +00:00

kern_thr.c

Defer ptracestop() signals that cannot be delivered immediately

2017-02-20 15:53:16 +00:00

kern_thread.c

Introduce EVENTHANDLER_LIST and some users.

2017-11-09 22:51:48 +00:00

kern_time.c

Add clock_nanosleep()

2017-03-19 00:51:12 +00:00

kern_timeout.c

Remove register keyword from sys/ and ANSIfy prototypes

2017-05-17 00:34:34 +00:00

kern_umtx.c

Convert explicit panic() call to assert.

2017-11-04 10:49:34 +00:00

kern_uuid.c

Hint at the intended usage for the "ll" field of struct uuid_private.

2017-06-13 15:37:04 +00:00

kern_xxx.c

Remove register keyword from sys/ and ANSIfy prototypes

2017-05-17 00:34:34 +00:00

ksched.c

…

link_elf_obj.c

Reduce stack usage in link_elf_load_file(), allocating struct nameidata.

2017-03-09 00:45:15 +00:00

link_elf.c

kern: for pointers replace 0 with NULL.

2016-04-15 16:10:11 +00:00

linker_if.m

sys/kern: spelling fixes in comments.

2016-04-29 22:15:33 +00:00

Make.tags.inc

…

Makefile

Don't create pointless backups of generated files in "make sysent".

2016-07-28 21:29:04 +00:00

makesyscalls.sh

Commit the 64-bit inode project.

2017-05-23 09:29:05 +00:00

md4c.c

ANSIfy sys/kern/md4c.c

2017-11-05 19:49:44 +00:00

md5c.c

crypto routines: Hint minimum buffer sizes to the compiler

2016-05-26 19:29:29 +00:00

msi_if.m

Introduce MSI and MSI-X support to intrng. This adds a new msi device

2016-05-16 09:11:40 +00:00

p1003_1b.c

Use passed thread pointer instead of curthread in sys_sched_yield

2017-11-12 02:34:33 +00:00

pic_if.m

INTRNG: Rework handling with resources. Partially revert r301453.

2016-08-19 10:52:39 +00:00

posix4_mib.c

Make p1003_1b.aio_listio_max a tunable

2017-08-08 16:14:31 +00:00

sched_4bsd.c

Remove register keyword from sys/ and ANSIfy prototypes

2017-05-17 00:34:34 +00:00

sched_ule.c

Don't take Giant for SMP status and cpu topology sysctls.

2017-10-18 22:00:44 +00:00

serdev_if.m

…

stack_protector.c

…

subr_acl_nfs4.c

…

subr_acl_posix1e.c

…

subr_autoconf.c

Add config_intrhook_oneshot(): schedule an intrhook function and unregister

2017-08-13 18:10:24 +00:00

subr_blist.c

The recent change to initialization of blists (r324420) relied on '-1'

2017-10-09 18:19:06 +00:00

subr_bufring.c

…

subr_bus_dma.c

Add CAM/NVMe support for CAM_DATA_SG

2017-08-29 15:29:57 +00:00

subr_bus.c

Add eventhandler notifications for newbus device attach/detach.

2017-10-08 17:33:49 +00:00

subr_busdma_bufalloc.c

…

subr_capability.c

…

subr_clock.c

Add common code to support realtime clocks that store year without century.

2017-07-23 21:28:00 +00:00

subr_counter.c

Zero return value when counter_rate() switches over to next second and

2016-12-13 20:11:45 +00:00

subr_devmap.c

o Replace __riscv__ with __riscv

2017-08-07 14:09:57 +00:00

subr_devstat.c

Add support for managing Shingled Magnetic Recording (SMR) drives.

2016-05-19 14:08:36 +00:00

subr_disk.c

…

subr_dummy_vdso_tc.c

…

subr_eventhandler.c

Introduce EVENTHANDLER_LIST and some users.

2017-11-09 22:51:48 +00:00

subr_fattime.c

…

subr_firmware.c

Fix improper use of "its".

2016-11-08 23:59:41 +00:00

subr_gtaskqueue.c

Fix "taskqgroup_attach: setaffinity failed: 3" with iflib drivers

2017-10-05 14:43:30 +00:00

subr_hash.c

Renumber license clauses in sys/kern to avoid skipping #3

2016-09-15 13:16:20 +00:00

subr_hints.c

…

subr_intr.c

Fix compile error with option DEBUG. This is fallout from some long-ago

2017-08-16 16:51:55 +00:00

subr_kdb.c

Change kdb_active type to u_char.

2017-10-22 13:42:56 +00:00

subr_kobj.c

- Also outside of the KOBJOPLOOKUP macro - which in turn is used by

2017-05-08 21:08:39 +00:00

subr_lock.c

locks: follow up r313386

2017-02-07 16:01:07 +00:00

subr_log.c

Renumber license clauses in sys/kern to avoid skipping #3

2016-09-15 13:16:20 +00:00

subr_mchain.c

Renumber license clauses in sys/kern to avoid skipping #3

2016-09-15 13:16:20 +00:00

subr_module.c

…

subr_msgbuf.c

sys/kern: spelling fixes in comments.

2016-04-29 22:15:33 +00:00

subr_param.c

Allow sysctl kern.vm_guest to return bhyve when running under bhyve.

2017-06-08 04:02:14 +00:00

subr_pcpu.c

Renumber license clauses in sys/kern to avoid skipping #3

2016-09-15 13:16:20 +00:00

subr_pctrie.c

Make the number of children for pctrie node available outside subr_pctrie.c.

2017-07-27 16:40:14 +00:00

subr_power.c

…

subr_prf.c

kvprintf %b enhancements

2017-07-12 07:30:14 +00:00

subr_prof.c

Renumber license clauses in sys/kern to avoid skipping #3

2016-09-15 13:16:20 +00:00

subr_rman.c

Add new bus methods for mapping resources.

2016-05-20 17:57:47 +00:00

subr_rtc.c

Add clock_schedule(), a feature that allows realtime clock drivers to

2017-07-31 01:18:21 +00:00

subr_sbuf.c

An off-by-one error exists in sbuf_vprintf()'s use of SBUF_HASROOM() when an

2017-08-18 02:06:28 +00:00

subr_scanf.c

Renumber license clauses in sys/kern to avoid skipping #3

2016-09-15 13:16:20 +00:00

subr_sfbuf.c

subr_sfbus.c need sys/proc.h for struct thread definition.

2017-02-07 17:31:24 +00:00

subr_sglist.c

Add sglist_append_sglist().

2017-05-16 23:31:52 +00:00

subr_sleepqueue.c

Make the sleepq chain hash size configurable per-arch and bump on amd64.

2017-10-22 20:43:50 +00:00

subr_smp.c

Don't take Giant for SMP status and cpu topology sysctls.

2017-10-18 22:00:44 +00:00

subr_stack.c

Let stack_create(9) take a malloc flags argument.

2017-10-06 21:52:28 +00:00

subr_syscall.c

Move struct syscall_args syscall arguments parameters container into

2017-06-12 21:03:23 +00:00

subr_taskqueue.c

Add taskqueue_enqueue_timeout_sbt(), because sometimes you want more control

2017-07-31 00:54:50 +00:00

subr_terminal.c

Oops, my fix for bright colors broke bright black some more (in cases

2017-03-27 10:48:28 +00:00

subr_trap.c

- Remove 'struct vmmeter' from 'struct pcpu', leaving only global vmmeter

2017-04-17 17:34:47 +00:00

subr_turnstile.c

Remove unused declaration and update ddb.4

2017-08-24 19:16:25 +00:00

subr_uio.c

Simplify UIO_SYSSPACE and UIO_NOCOPY paths in uiomove

2017-07-06 15:03:54 +00:00

subr_unit.c

Properly reset the fields in clean_unrhdr.

2017-10-16 16:14:50 +00:00

subr_vmem.c

Start annotating global _padalign locks with __exclusive_cache_line

2017-09-06 20:28:18 +00:00

subr_witness.c

Bump WITNESS_PENDLIST to accomodate sleepq chain bump.

2017-10-23 01:00:35 +00:00

sys_capability.c

capsicum: perform copyout without the fildesc lock held in sys_cap_ioctls_get

2016-10-21 16:12:23 +00:00

sys_generic.c

Fix NULL pointer dereference and panic with shm file pread/pwrite.

2017-03-10 10:09:44 +00:00

sys_pipe.c

Generate syscall tables and update pipe() implementation after r302094.

2016-06-22 21:18:19 +00:00

sys_procdesc.c

Hide the boottime and bootimebin globals, provide the getboottime(9)

2016-07-27 11:08:59 +00:00

sys_process.c

Only clear a pending thread event if one is pending.

2017-11-13 19:58:58 +00:00

sys_socket.c

Don't grab SOCK_LOCK for soref() when queuing an AIO request.

2017-08-25 23:10:27 +00:00

syscalls.c

Regen.

2017-06-17 00:58:19 +00:00

syscalls.master

Add abstime kqueue(2) timers and expand struct kevent members.

2017-06-17 00:57:26 +00:00

systrace_args.c

Regen.

2017-06-17 00:58:19 +00:00

sysv_ipc.c

…

sysv_msg.c

Remove register keyword from sys/ and ANSIfy prototypes

2017-05-17 00:34:34 +00:00

sysv_sem.c

sysvsem: check if semu_list has anything on it before grabbing the lock

2017-10-19 00:31:00 +00:00

sysv_shm.c

Audit arguments to System V IPC system calls implementing sempahores,

2017-03-30 22:26:15 +00:00

tty_compat.c

Renumber license clauses in sys/kern to avoid skipping #3

2016-09-15 13:16:20 +00:00

tty_info.c

Renumber license clauses in sys/kern to avoid skipping #3

2016-09-15 13:16:20 +00:00

tty_inq.c

Check tty_gone() after allocating IO buffers. The tty lock has to be

2017-01-13 16:37:38 +00:00

tty_outq.c

Check tty_gone() after allocating IO buffers. The tty lock has to be

2017-01-13 16:37:38 +00:00

tty_pts.c

Commit the 64-bit inode project.

2017-05-23 09:29:05 +00:00

tty_tty.c

…

tty_ttydisc.c

Don't clear the software flow control flag before draining for last

2016-01-26 14:46:39 +00:00

tty.c

Commit the 64-bit inode project.

2017-05-23 09:29:05 +00:00

uipc_accf.c

Listening sockets improvements.

2017-06-08 21:30:34 +00:00

uipc_debug.c

ddb show socket debugging

2017-06-15 04:49:12 +00:00

uipc_domain.c

Renumber license clauses in sys/kern to avoid skipping #3

2016-09-15 13:16:20 +00:00

uipc_mbuf2.c

Remove writability requirement for single-mbuf, contiguous-range

2017-01-12 06:38:03 +00:00

uipc_mbuf.c

mbuf(9): unbreak m_fragment()

2017-10-16 21:46:11 +00:00

uipc_mbufhash.c

…

uipc_mqueue.c

Correct sysent flags for dynamically loaded syscalls.

2017-07-14 09:34:44 +00:00

uipc_sem.c

Audit arguments to POSIX message queues, semaphores, and shared memory.

2017-03-31 13:43:00 +00:00

uipc_shm.c

Replace manyinstances of VM_WAIT with blocking page allocation flags

2017-11-08 02:39:37 +00:00

uipc_sockbuf.c

Third take on the r319685 and r320480. Actually allow for call soisconnected()

2017-08-24 20:49:19 +00:00

uipc_socket.c

Fix locking in soisconnected().

2017-09-14 18:05:54 +00:00

uipc_syscalls.c

Listening sockets improvements.

2017-06-08 21:30:34 +00:00

uipc_usrreq.c

Hide struct socket and struct unpcb from the userland.

2017-10-02 23:29:56 +00:00

vfs_acl.c

Add system-call argument auditing for ACL-related system calls.

2017-03-30 22:00:58 +00:00

vfs_aio.c

Fix aio_suspend in 32-bit emulation

2017-10-26 19:45:15 +00:00

vfs_bio.c

Replace manyinstances of VM_WAIT with blocking page allocation flags

2017-11-08 02:39:37 +00:00

vfs_cache.c

namecache: bump numcache after dropping all locks

2017-11-05 22:29:45 +00:00

vfs_cluster.c

Move bogus_page declaration to vm_page.h and initialization to vm_page.c.

2017-01-04 22:27:19 +00:00

vfs_default.c

Only handle _PC_MAX_CANON, _PC_MAX_INPUT, and _PC_VDISABLE for TTY devices.

2017-09-21 23:05:32 +00:00

vfs_export.c

vfs_export_lookup: Fix r324054

2017-10-06 09:02:36 +00:00

vfs_extattr.c

…

vfs_hash.c

Add vfs_hash_ref(9) function, which finds a vnode by the hash value

2016-05-11 06:32:22 +00:00

vfs_init.c

Renumber license clauses in sys/kern to avoid skipping #3

2016-09-15 13:16:20 +00:00

vfs_lookup.c

When a Linux program tries to access a /path the kernel tries

2017-10-15 18:53:21 +00:00

vfs_mount.c

remove process and jail directory machinations from dounmount

2017-10-13 09:42:05 +00:00

vfs_mountroot.c

Make root_mount_rel(9) ignore NULL arguments, like it used to before r313351.

2017-09-05 14:32:56 +00:00

vfs_subr.c

Avoid the nbp lookup in the final loop iteration in flushbuflist().

2017-10-20 14:56:13 +00:00

vfs_syscalls.c

Remove the support for mknod(S_IFMT), which created dummy vnodes with

2017-10-22 08:11:45 +00:00

vfs_vnops.c

Use whole mnt_stat.f_fsid bits for st_dev.

2017-05-27 17:00:30 +00:00

vnode_if.src

For UNIX sockets make vnode point not to the socket, but to the UNIX PCB,

2017-06-02 17:31:25 +00:00