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Fix BSD regressions

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The recent change to crt.S that aggressively aligns the system-provided
stack has been rolled back on non-Linux until we can find a better way,
since it can cause a segfault early in execution on several platforms.

This change fixes a regression in tcgetattr() and tcsetattr() on OpenBSD
and NetBSD caused by 4778cd4d27.

This change has been tested across the runitd test fleet which is green.
This commit is contained in:
Justine Tunney 2023-07-01 00:17:33 -07:00
parent 5a77db2cd5
commit 053681cb97
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GPG key ID: BE714B4575D6E328
9 changed files with 34 additions and 37 deletions
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5
libc/sysv/consts.sh
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@ -1318,6 +1318,8 @@ syscon sched SCHED_RESET_ON_FORK 0x40000000 0x40000000 0 0 0 0 0 0
# = TIOCSETA → About 3,110 results (0.41 seconds)
#
# group name GNU/Systemd GNU/Systemd (Aarch64) XNU's Not UNIX! MacOS (Arm64) FreeBSD OpenBSD NetBSD The New Technology Commentary
syscon termios TCGETS 0x5401 0x5401 0x40487413 0x40487413 0x402c7413 0x402c7413 0x402c7413 0x5401 # Gets console settings; tcgetattr(tty, argp) → ioctl(tty, TCGETS, struct termios *argp); polyfilled NT
syscon termios TCSETS 0x5402 0x5402 0x80487414 0x80487414 0x802c7414 0x802c7414 0x802c7414 0x5402 # Sets console settings; = ioctl(tty, TCSETS, const struct termios *argp); polyfilled NT
syscon termios TIOCGWINSZ 0x5413 0x5413 1074295912 1074295912 1074295912 1074295912 1074295912 0x5413 # ioctl(tty, TIOCGWINSZ, struct winsize *argp); polyfilled NT
syscon termios TIOCSWINSZ 0x5414 0x5414 0x80087467 0x80087467 0x80087467 0x80087467 0x80087467 0x5414 # ioctl(tty, TIOCSWINSZ, const struct winsize *argp) (faked NT)
syscon termios TIOCINQ 0x541b 0x541b 0x4004667f 0x4004667f 0x4004667f 0x4004667f 0x4004667f 0x4004667f # [Linuxism] same as FIONREAD
@ -1441,6 +1443,9 @@ syscon termios VLNEXT 15+1 15+1 14 14 14 14 14 15 # termios.
syscon termios VEOL2 16+1 16+1 2 2 2 2 2 16 # termios.c_cc[VEOL2]=𝑥
syscon termios _POSIX_VDISABLE 0 0 255 255 255 255 255 0 # termios.c_cc tombstone value
# tcflush() magic numbers
#
# group name GNU/Systemd GNU/Systemd (Aarch64) XNU's Not UNIX! MacOS (Arm64) FreeBSD OpenBSD NetBSD The New Technology Commentary
syscon termios TCIFLUSH 0 0 1 1 1 1 1 0 # see tcflush; FREAD on BSD; faked nt
syscon termios TCOFLUSH 1 1 2 2 2 2 2 1 # see tcflush; FWRITE on BSD; faked nt
syscon termios TCIOFLUSH 2 2 3 3 3 3 3 2 # see tcflush; FREAD|FWRITE on BSD; faked nt