use POSIX qw(ENOENT ENOSYS EINVAL O_NONBLOCK);
use Socket qw(SOL_SOCKET SCM_RIGHTS);
use Config;
+our %SIGNUM = (WINCH => 28); # most Linux, {Free,Net,Open}BSD, *Darwin
# $VERSION = '0.25'; # Sys::Syscall version
our @EXPORT_OK = qw(epoll_ctl epoll_create epoll_wait
EPOLLIN EPOLLOUT EPOLLET
EPOLL_CTL_ADD EPOLL_CTL_DEL EPOLL_CTL_MOD
EPOLLONESHOT EPOLLEXCLUSIVE
- signalfd rename_noreplace);
+ signalfd rename_noreplace %SIGNUM);
our %EXPORT_TAGS = (epoll => [qw(epoll_ctl epoll_create epoll_wait
EPOLLIN EPOLLOUT
EPOLL_CTL_ADD EPOLL_CTL_DEL EPOLL_CTL_MOD
};
my @BYTES_4_hole = BYTES_4_hole ? (0) : ();
-our $loaded_syscall = 0;
-
-sub _load_syscall {
- # props to Gaal for this!
- return if $loaded_syscall++;
- my $clean = sub {
- delete @INC{qw<syscall.ph asm/unistd.ph bits/syscall.ph
- _h2ph_pre.ph sys/syscall.ph>};
- };
- $clean->(); # don't trust modules before us
- my $rv = eval { require 'syscall.ph'; 1 } || eval { require 'sys/syscall.ph'; 1 };
- $clean->(); # don't require modules after us trust us
- $rv;
-}
-
our (
$SYS_epoll_create,
# boundaries.
my $u64_mod_8 = 0;
- # if we're running on an x86_64 kernel, but a 32-bit process,
- # we need to use the x32 or i386 syscall numbers.
- if ($machine eq "x86_64" && $Config{ptrsize} == 4) {
- $machine = $Config{cppsymbols} =~ /\b__ILP32__=1\b/ ? 'x32' : 'i386';
- }
-
- # Similarly for mips64 vs mips
- if ($machine eq "mips64" && $Config{ptrsize} == 4) {
- $machine = "mips";
+ if ($Config{ptrsize} == 4) {
+ # if we're running on an x86_64 kernel, but a 32-bit process,
+ # we need to use the x32 or i386 syscall numbers.
+ if ($machine eq 'x86_64') {
+ my $s = $Config{cppsymbols};
+ $machine = ($s =~ /\b__ILP32__=1\b/ && $s =~ /\b__x86_64__=1\b/) ?
+ 'x32' : 'i386'
+ } elsif ($machine eq 'mips64') { # similarly for mips64 vs mips
+ $machine = 'mips';
+ }
}
if ($machine =~ m/^i[3456]86$/) {
$SYS_epoll_wait = 226;
$u64_mod_8 = 1;
$SYS_signalfd4 = 309;
+ $SIGNUM{WINCH} = 23;
} elsif ($machine =~ m/^ppc64/) {
$SYS_epoll_create = 236;
$SYS_epoll_ctl = 237;
$SYS_recvmsg = 4177;
$FS_IOC_GETFLAGS = 0x40046601;
$FS_IOC_SETFLAGS = 0x80046602;
+ $SIGNUM{WINCH} = 20;
} else {
- # as a last resort, try using the *.ph files which may not
- # exist or may be wrong
- _load_syscall();
- $SYS_epoll_create = eval { &SYS_epoll_create; } || 0;
- $SYS_epoll_ctl = eval { &SYS_epoll_ctl; } || 0;
- $SYS_epoll_wait = eval { &SYS_epoll_wait; } || 0;
-
- # Note: do NOT add new syscalls to depend on *.ph, here.
- # Better to miss syscalls (so we can fallback to IO::Poll)
- # than to use wrong ones, since the names are not stable
- # (at least not on FreeBSD), if the actual numbers are.
+ warn <<EOM;
+machine=$machine ptrsize=$Config{ptrsize} has no syscall definitions
+git clone https://80x24.org/public-inbox.git and
+Send the output of ./devel/syscall-list to meta\@public-inbox.org
+EOM
}
-
if ($u64_mod_8) {
*epoll_wait = \&epoll_wait_mod8;
*epoll_ctl = \&epoll_ctl_mod8;
}
# use Inline::C for *BSD-only or general POSIX stuff.
# Linux guarantees stable syscall numbering, BSDs only offer a stable libc
-# use scripts/syscall-list on Linux to detect new syscall numbers
+# use devel/syscall-list on Linux to detect new syscall numbers
############################################################################
# epoll functions
############################################################################
-sub epoll_defined { $SYS_epoll_create ? 1 : 0; }
-
sub epoll_create {
syscall($SYS_epoll_create, $no_deprecated ? 0 : 100);
}