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| author | Eric Wong <e@80x24.org> | 2022-10-17 09:30:52 +0000 |
|---|---|---|
| committer | Eric Wong <e@80x24.org> | 2022-10-17 22:16:28 +0000 |
| commit | 7a13b24e3b7f31a647ea180d5b180d8f8eaa025a (patch) | |
| tree | 99f5cad0a04e1c6bd5b860ef16cf68be4308cf0c /lib/PublicInbox/Syscall.pm | |
| parent | 70d2806f623b7d5c8fe8328f8e53a24e7be34393 (diff) | |
| download | public-inbox-7a13b24e3b7f31a647ea180d5b180d8f8eaa025a.tar.gz | |
For common x86-64 systems, we can avoid a needless string comparison on `mips64' by restructuring the branches for architecture detection.
Diffstat (limited to 'lib/PublicInbox/Syscall.pm')
| -rw-r--r-- | lib/PublicInbox/Syscall.pm | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/lib/PublicInbox/Syscall.pm b/lib/PublicInbox/Syscall.pm index 412ca64f..291e0489 100644 --- a/lib/PublicInbox/Syscall.pm +++ b/lib/PublicInbox/Syscall.pm @@ -97,15 +97,14 @@ if ($^O eq "linux") { # 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') { + $machine = $Config{cppsymbols} =~ /\b__ILP32__=1\b/ ? 'x32' : 'i386' + } elsif ($machine eq 'mips64') { # similarly for mips64 vs mips + $machine = 'mips'; + } } if ($machine =~ m/^i[3456]86$/) { |