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Improve quality of raise(), abort(), and tkill()

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This change fixes a nasty bug where SIG_IGN and SIG_DFL weren't working
as advertised on BSDs. This change also fixes the tkill() definition on
MacOS so it maps to __pthread_kill().
This commit is contained in:
Justine Tunney 2022-09-03 18:12:01 -07:00
parent c5659b93f8
commit c5c4dfcd21
12 changed files with 293 additions and 63 deletions
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2
libc/sysv/calls/sys_tkill.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/macros.internal.inc"
.scall sys_tkill,0x13e0771b121690c8,globl,hidden
.scall sys_tkill,0x13e0771b121480c8,globl,hidden

2
libc/sysv/consts.sh
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@ -533,7 +533,7 @@ syscon sicode SI_TKILL -6 0x80000000 0x010007 -1 -5 -6 # sent by tk
syscon sicode SI_MESGQ -3 0x010005 0x010005 0x80000000 -4 -3 # sent by mq_notify(2); lool
syscon sicode SI_ASYNCIO -4 0x010004 0x010004 0x80000000 -3 -4 # aio completion; no thank you
syscon sicode SI_ASYNCNL -60 0x80000000 0x80000000 0x80000000 0x80000000 0x80000000 # aio completion for dns; the horror
syscon sicode SI_KERNEL 0x80 0x80000000 0x010006 0x80000000 0x80000000 0x80 # wut; openbsd defines as si_code>0
syscon sicode SI_KERNEL 128 0x80000000 0x010006 0x80000000 0x80000000 0x80 # wut; openbsd defines as si_code>0
syscon sicode SI_NOINFO 32767 0x80000000 0 32767 32767 32767 # no signal specific info available
syscon sicode CLD_EXITED 1 1 1 1 1 1 # SIGCHLD; child exited; unix consensus
syscon sicode CLD_KILLED 2 2 2 2 2 2 # SIGCHLD; child terminated w/o core; unix consensus

2
libc/sysv/syscalls.sh
View file

@ -98,7 +98,7 @@ scall __sys_wait4 0x1c100b007200703d globl hidden
scall sys_kill 0x02507a025202503e globl hidden # kill(pid, sig, 1) b/c xnu
scall sys_killpg 0x092fff092fffffff globl hidden
scall sys_clone 0x11fffffffffff038 globl hidden
scall sys_tkill 0x13e0771b121690c8 globl hidden # thr_kill() on freebsd; _lwp_kill() on netbsd; thrkill() on openbsd where arg3 should be 0; bsdthread_terminate() on XNU which only has 1 arg
scall sys_tkill 0x13e0771b121480c8 globl hidden # thr_kill() on freebsd; _lwp_kill() on netbsd; thrkill() on openbsd where arg3 should be 0; __pthread_kill() on XNU
scall sys_futex 0x0a6053fffffff0ca globl hidden # raises SIGSYS on NetBSD
scall set_robust_list 0x0a7ffffffffff111 globl
scall get_robust_list 0x0a8ffffffffff112 globl