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Improve system call wrappers

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This change improves copy_file_range(), sendfile(), splice(), openpty(),
closefrom(), close_range(), fadvise() and posix_fadvise() in addition to
writing tests that confirm things like errno and seeking behavior across
platforms. We now less aggressively polyfill behavior with some of these
functions when the platform support isn't available. Please see:

https://justine.lol/cosmopolitan/functions.html
This commit is contained in:
Justine Tunney 2022-09-19 15:01:48 -07:00
parent 224c12f54d
commit c7a8cd21e9
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GPG key ID: BE714B4575D6E328
89 changed files with 1151 additions and 414 deletions
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4
libc/sysv/syscalls.sh
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@ -249,7 +249,7 @@ scall sys_getdents 0x18606311020c40d9 globl hidden # use opendir/readdir; four
scall sys_set_tid_address 0xfffffffffffff0da globl # no wrapper
scall sys_restart_syscall 0xfffffffffffff0db globl # no wrapper
scall sys_semtimedop 0xfffffffffffff0dc globl # no wrapper
scall sys_fadvise 0xffffff213ffff0dd globl hidden
scall sys_fadvise 0x1a0fff213ffff0dd globl hidden
scall sys_timer_create 0x0ebffffffffff0de globl # no wrapper
scall sys_timer_settime 0x1beffffffffff0df globl # no wrapper
scall sys_timer_gettime 0x1bfffffffffff0e0 globl # no wrapper
@ -383,7 +383,7 @@ scall sys_fsmount 0xfffffffffffff1b0 globl # no wrapper
scall sys_fspick 0xfffffffffffff1b1 globl # no wrapper
scall sys_pidfd_open 0xfffffffffffff1b2 globl # no wrapper
scall sys_clone3 0xfffffffffffff1b3 globl # no wrapper
scall sys_close_range 0xffffff23fffff1b4 globl hidden # linux 5.9
scall sys_close_range 0xffffff23fffff1b4 globl hidden # Linux 5.9
scall sys_openat2 0xfffffffffffff1b5 globl hidden # Linux 5.6
scall sys_pidfd_getfd 0xfffffffffffff1b6 globl # no wrapper
scall sys_faccessat2 0xfffffffffffff1b7 globl hidden