The regress/sys/arch/amd64/fpu/fenv.S utility issues "direct" syscalls

which does not go through libc. This is no longer possible due to
pinsyscalls(2). Borrow the PINSYSCALL asm macro from libc/arch/DEFS.h to
setup a .openbsd.syscalls section.

diff --git a/regress/sys/arch/amd64/fpu/fenv.S b/regress/sys/arch/amd64/fpu/fenv.S
index 1178d15..1ad78a1 100644 (file)
--- a/regress/sys/arch/amd64/fpu/fenv.S
+++ b/regress/sys/arch/amd64/fpu/fenv.S
@@ -1,4 +1,4 @@
-/*     $OpenBSD: fenv.S,v 1.1.1.1 2018/08/21 18:35:18 bluhm Exp $      */
+/*     $OpenBSD: fenv.S,v 1.2 2024/04/01 18:52:34 anton Exp $  */
 /*
  * Copyright (c) 2018 Alexander Bluhm <bluhm@openbsd.org>
  *
@@ -17,6 +17,13 @@
 
 #include <sys/syscall.h>
 
+#define PINSYSCALL(sysno, label)                                       \
+       .pushsection .openbsd.syscalls,"",%progbits;                    \
+       .p2align 2;                                                     \
+       .long label;                                                    \
+       .long sysno;                                                    \
+       .popsection;
+
        .section        .note.openbsd.ident, "a"
        .p2align        2
        .long           8
@@ -49,7 +56,11 @@ _start:
        mov     $1,             %rdi
        mov     $env,           %rsi
        mov     $(env_end-env), %rdx
+1:
        syscall
+       PINSYSCALL(SYS_write, 1b)
        mov     $SYS_exit,      %rax
        mov     $0,             %rdi
+2:
        syscall
+       PINSYSCALL(SYS_exit, 2b)