commit d4cfe5537eec4ef65c227c5642ce72bb34596490
parent 13ffe40c6024950d7a7ed1c80b8083714b92ea1c
Author: Lennart Jablonka <humm@ljabl.com>
Date: Thu, 9 Apr 2026 14:03:49 +0000
fix syscalls on OpenBSD
* sys_lseek got a new syscall number in revision 1.221 of
/usr/src/sys/kern/syscalls.master (2021-12-23); the old one was
dropped in 1.241 (2023-02-11). Oh, but the old syscall number was
199, not 198, so I don't think this ever worked.
* For some time now, locations doing syscalls have to be marked using
either pinsyscalls(2) or .openbsd.syscalls sections, otherwise the
process is killed. For comparison, see the PINSYSCALL macro in
/usr/src/lib/libc/arch/DEFS.h and its use in the SYSTRAP macro in
/usr/src/lib/libc/arch/amd64/SYS.h (for example).
Diffstat:
2 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/src/libc/arch/amd64/openbsd/gensys.sh b/src/libc/arch/amd64/openbsd/gensys.sh
@@ -20,12 +20,16 @@ $name:
;;
esac`
movq \$$num,%rax
- syscall
- jb 1f
+1: syscall
+ jb 2f
retq
-1: movq %rax,(errno)
+2: movq %rax,(errno)
movq \$-1,%rax
retq
+
+ .section .openbsd.syscalls, "a", @progbits
+ .long 1b
+ .long $num
EOF
done
diff --git a/src/libc/arch/amd64/openbsd/syscall.lst b/src/libc/arch/amd64/openbsd/syscall.lst
@@ -17,4 +17,4 @@
67 _gettimeofday 2
122 _kill 2
128 _rename 2
-198 _lseek 3
+166 _lseek 3
