Index: lib/libsysdecode/errno.c
===================================================================
--- lib/libsysdecode/errno.c
+++ lib/libsysdecode/errno.c
@@ -35,7 +35,7 @@
 #include <stdio.h>
 #include <sysdecode.h>
 
-#if defined(__aarch64__) || defined(__amd64__) || defined(__i386__)
+#ifdef LINUX_ABI_PRESENT
 #include <compat/linux/linux_errno.h>
 #include <compat/linux/linux_errno.inc>
 #endif
@@ -48,7 +48,7 @@
 	case SYSDECODE_ABI_FREEBSD:
 	case SYSDECODE_ABI_FREEBSD32:
 		return (error);
-#if defined(__aarch64__) || defined(__amd64__) || defined(__i386__)
+#ifdef LINUX_ABI_PRESENT
 	case SYSDECODE_ABI_LINUX:
 	case SYSDECODE_ABI_LINUX32: {
 		unsigned int i;
@@ -78,7 +78,7 @@
 	case SYSDECODE_ABI_FREEBSD:
 	case SYSDECODE_ABI_FREEBSD32:
 		return (error);
-#if defined(__aarch64__) || defined(__amd64__) || defined(__i386__)
+#ifdef LINUX_ABI_PRESENT
 	case SYSDECODE_ABI_LINUX:
 	case SYSDECODE_ABI_LINUX32:
 		if (error >= 0 && error <= ELAST)
Index: lib/libsysdecode/signal.c
===================================================================
--- lib/libsysdecode/signal.c
+++ lib/libsysdecode/signal.c
@@ -136,7 +136,7 @@
 	[SIGRTMIN + 61] = "SIGRT61",
 };
 
-#if defined(__amd64__) || defined(__i386__) || defined(__aarch64__)
+#ifdef LINUX_ABI_PRESENT
 static const char *linux_signames[] = {
 	[LINUX_SIGHUP] = "SIGHUP",
 	[LINUX_SIGINT] = "SIGINT",
@@ -206,7 +206,7 @@
 };
 _Static_assert(nitems(linux_signames) == LINUX_SIGRTMAX + 1,
     "invalid entries count in linux_signames");
-#endif /* __amd64__ || __i386__ || __aarch64__ */
+#endif /* LINUX_ABI_PRESENT */
 
 const char *
 sysdecode_signal(int sig)
@@ -217,7 +217,7 @@
 	return (NULL);
 }
 
-#if defined(__amd64__) || defined(__i386__) || defined(__aarch64__)
+#ifdef LINUX_ABI_PRESENT
 const char *
 sysdecode_linux_signal(int sig)
 {
Index: lib/libsysdecode/syscallnames.c
===================================================================
--- lib/libsysdecode/syscallnames.c
+++ lib/libsysdecode/syscallnames.c
@@ -48,7 +48,7 @@
 #include <compat/freebsd32/freebsd32_syscalls.c>
 #endif
 
-#if defined(__aarch64__) || defined(__amd64__) || defined(__i386__)
+#ifdef LINUX_ABI_PRESENT
 static
 #ifdef __aarch64__
 #include <arm64/linux/linux_syscalls.c>
@@ -79,7 +79,7 @@
 			return (freebsd32_syscallnames[code]);
 		break;
 #endif
-#if defined(__aarch64__) || defined(__amd64__) || defined(__i386__)
+#ifdef LINUX_ABI_PRESENT
 	case SYSDECODE_ABI_LINUX:
 		if (code < nitems(linux_syscallnames))
 			return (linux_syscallnames[code]);
Index: lib/libsysdecode/sysdecode.h
===================================================================
--- lib/libsysdecode/sysdecode.h
+++ lib/libsysdecode/sysdecode.h
@@ -32,6 +32,10 @@
 #include <stdbool.h>
 #include <stdio.h>
 
+#if defined(__amd64__) || defined(__i386__) || defined(__aarch64__)
+#define	LINUX_ABI_PRESENT
+#endif
+
 enum sysdecode_abi {
 	SYSDECODE_ABI_UNKNOWN = 0,
 	SYSDECODE_ABI_FREEBSD,
@@ -134,8 +138,8 @@
 const char *sysdecode_whence(int _whence);
 bool	sysdecode_shmflags(FILE *_fp, int _flags, int *_rem);
 
-#if defined(__amd64__) || defined(__i386__) || defined(__aarch64__)
+#ifdef LINUX_ABI_PRESENT
 const char *sysdecode_linux_signal(int _sig);
-#endif /* __amd64__ || __i386__ || __aarch64__ */
+#endif /* LINUX_ABI_PRESENT */
 
 #endif /* !__SYSDECODE_H__ */
Index: usr.bin/kdump/kdump.c
===================================================================
--- usr.bin/kdump/kdump.c
+++ usr.bin/kdump/kdump.c
@@ -136,11 +136,11 @@
 void ktrsigset(char *, sigset_t *, size_t);
 void ktrsyscall_freebsd(struct ktr_syscall *ktr, register_t **resip,
     int *resnarg, char *resc, u_int sv_flags);
-#if defined(__amd64__) || defined(__i386__) || defined(__aarch64__)
+#ifdef LINUX_ABI_PRESENT
 void ktrsyscall_linux(struct ktr_syscall *ktr, register_t **resip,
     int *resnarg, char *resc);
 #endif
-#ifdef __amd64__
+#if defined(__amd64__) && defined(LINUX_ABI_PRESENT)
 void ktrsyscall_linux32(struct ktr_syscall *ktr, register_t **resip,
     int *resnarg, char *resc);
 #endif
@@ -815,7 +815,7 @@
 		printf("SIG %d", signo);
 }
 
-#if defined(__amd64__) || defined(__i386__) || defined(__aarch64__)
+#ifdef LINUX_ABI_PRESENT
 static void
 print_linux_signal(int signo)
 {
@@ -845,7 +845,7 @@
 				ktrsyscall_freebsd(ktr, &ip, &narg, &c,
 				    sv_flags);
 				break;
-#if defined(__amd64__) || defined(__i386__) || defined(__aarch64__)
+#ifdef LINUX_ABI_PRESENT
 			case SV_ABI_LINUX:
 #ifdef __amd64__
 				if (sv_flags & SV_ILP32)
@@ -2348,7 +2348,7 @@
 	return;
 }
 
-#if defined(__amd64__) || defined(__i386__) || defined(__aarch64__)
+#ifdef LINUX_ABI_PRESENT
 void
 ktrsyscall_linux(struct ktr_syscall *ktr, register_t **resip,
     int *resnarg, char *resc)
@@ -2399,7 +2399,6 @@
 	*resip = ip;
 	*resnarg = narg;
 }
-#endif /* __amd64__ || __i386__ || __aarch64__ */
 
 #if defined(__amd64__)
 void
@@ -2455,6 +2454,7 @@
 	*resnarg = narg;
 }
 #endif /* __amd64__ */
+#endif /* LINUX_ABI_PRESENT */
 
 void
 usage(void)