kern/56418: cannot compile INSTALL_FLOPPY kernel on current/i386

[hashikaw%mail.ru@localhost]

>Number:         56418
>Category:       kern
>Synopsis:       cannot compile INSTALL_FLOPPY kernel on current/i386
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Sep 27 08:45:00 +0000 2021
>Originator:     Kouichi Hashikawa
>Release:        9.99.88
>Organization:
>Environment:
>Description:
I cannot compile INSTALL_FLOPPY kernel (contains no option PTRACE_HOOKS)  on current/i386 with, 

#      link  INSTALL_FLOPPY/netbsd
/current/netbsd/c/build/tools/bin/i486--netbsdelf-ld -Map netbsd.map --cref -T netbsd.ldscript -Ttext c0100000 -e start -X -o netbsd ${SYSTEM_OBJ:[@]:Nswapnetbsd.o} ${EXTRA_OBJ} vers.o swapnetbsd.o
/current/netbsd/c/build/tools/bin/i486--netbsdelf-ld: sys_process_lwpstatus.o: in function `process_doregs': sys_process_lwpstatus.c:(.text+0x379): undefined reference to `process_write_regs'
/current/netbsd/c/build/tools/bin/i486--netbsdelf-ld: sys_process_lwpstatus.o: in function `process_dofpregs': sys_process_lwpstatus.c:(.text+0x3a9): undefined reference to `process_write_fpregs'
/current/netbsd/c/build/tools/bin/i486--netbsdelf-ld: sys_process_lwpstatus.o: in function `process_dodbregs': sys_process_lwpstatus.c:(.text+0x3d9): undefined reference to `process_write_dbregs'

*** Failed target:  netbsd

>How-To-Repeat:
enable to build INSTALL_FLOPPY kernel and make the kernel.
(in src/etc/etc.i386/Makefile.inc, INSTALL_FLOPPY to BUILD_KERNELS).

>Fix:
I think, 

--- src/sys/kern/sys_process_lwpstatus.c-dist   2020-12-21 16:20:40.000000000 +0900
+++ src/sys/kern/sys_process_lwpstatus.c        2021-09-26 15:19:27.982208400 +0900
@@ -144,7 +144,7 @@
 #endif
 }
 
-#ifdef PT_REGISTERS
+#if defined(PTRACE_HOOKS) && defined(PT_REGISTERS)
 static int
 proc_regio(struct lwp *l, struct uio *uio, size_t ks, ptrace_regrfunc_t r,
     ptrace_regwfunc_t w)
@@ -186,7 +186,7 @@
     struct lwp *l /*traced*/,
     struct uio *uio)
 {
-#if defined(PT_GETREGS) || defined(PT_SETREGS)
+#if defined(PTRACE_HOOKS) && (defined(PT_GETREGS) || defined(PT_SETREGS))
        size_t s;
        ptrace_regrfunc_t r;
        ptrace_regwfunc_t w;
@@ -220,7 +220,7 @@
     struct lwp *l /*traced*/,
     struct uio *uio)
 {
-#if defined(PT_GETFPREGS) || defined(PT_SETFPREGS)
+#if defined(PTRACE_HOOKS) && (defined(PT_GETFPREGS) || defined(PT_SETFPREGS))
        size_t s;
        ptrace_regrfunc_t r;
        ptrace_regwfunc_t w;
@@ -255,7 +255,7 @@
     struct lwp *l /*traced*/,
     struct uio *uio)
 {
-#if defined(PT_GETDBREGS) || defined(PT_SETDBREGS)
+#if defined(PTRACE_HOOKS) && (defined(PT_GETDBREGS) || defined(PT_SETDBREGS))
        size_t s;
        ptrace_regrfunc_t r;
        ptrace_regwfunc_t w;