reactos/syzkaller
1
0
Fork 0
mirror of https://github.com/reactos/syzkaller.git synced 2024-11-27 05:10:43 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

sys/syz-extract: fix handling of odd prefixed syscalls on OpenBSD

Browse Source 
This makes syz-extract work again on OpenBSD.
This commit is contained in:
Anton Lindqvist 2020-03-04 16:42:55 +01:00 committed by Dmitry Vyukov
parent 4fb7265b97
commit 9ef240be5f
1 changed files with 18 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
sys/syz-extract/openbsd.go
View File

@ -57,21 +57,26 @@ func (*openbsd) processFile(arch *Arch, info *compiler.ConstInfo) (map[string]ui
args = append(args, "-I"+dir)
}
}
// Syscall consts on openbsd have weird prefixes sometimes,
// try to extract consts with these prefixes as well.
// Some syscalls on OpenBSD are prefixed with `SYS___' as opposed of the
// more common `SYS_' prefix.
syscallsQuirks := map[string]bool{
"SYS_get_tcb": true,
"SYS_getcwd": true,
"SYS_realpath": true,
"SYS_semctl": true,
"SYS_set_tcb": true,
"SYS_syscall": true,
"SYS_tfork": true,
"SYS_threxit": true,
"SYS_thrsigdivert": true,
"SYS_thrsleep": true,
"SYS_thrwakeup": true,
"SYS_tmpfd": true,
}
compatNames := make(map[string][]string)
for _, val := range info.Consts {
const SYS = "SYS_"
if strings.HasPrefix(val, SYS) {
for _, prefix := range []string{"_", "__", "___"} {
for _, suffix := range []string{"30", "50"} {
compat := SYS + prefix + val[len(SYS):] + suffix
compatNames[val] = append(compatNames[val], compat)
info.Consts = append(info.Consts, compat)
}
}
} else {
compat := "LINUX_" + val
if _, ok := syscallsQuirks[val]; ok {
compat := "SYS___" + val[len("SYS_"):]
compatNames[val] = append(compatNames[val], compat)
info.Consts = append(info.Consts, compat)
}