[PowerPC64] stand: fix build using clang 8 as compiler

This change fixes "stand" build issues when using clang 8
as compiler.

Submitted by:   alfredo.junior_eldorado.org.br
Reviewed by:    jhibbits
Differential Revision: https://reviews.freebsd.org/D20026

5 files changed, 13 insertions, 5 deletions

diff --git a/stand/powerpc/boot1.chrp/boot1.c b/stand/powerpc/boot1.chrp/boot1.c
index 5e54c95681b2..4d152efe1a70 100644
--- a/stand/powerpc/boot1.chrp/boot1.c
+++ b/stand/powerpc/boot1.chrp/boot1.c
@@ -23,6 +23,7 @@ __FBSDID("$FreeBSD$");
 #include <machine/elf.h>
 #include <machine/stdarg.h>
 #include <machine/md_var.h>
+#include <ufs/ffs/fs.h>
 
 #include "paths.h"
 
diff --git a/stand/powerpc/kboot/Makefile b/stand/powerpc/kboot/Makefile
index 8a6a0dee6544..671db88a14a9 100644
--- a/stand/powerpc/kboot/Makefile
+++ b/stand/powerpc/kboot/Makefile
@@ -36,9 +36,6 @@ CFLAGS+=	-DRELOC=${RELOC}
 
 LDFLAGS=	-nostdlib -static -T ${.CURDIR}/ldscript.powerpc
 
-# 64-bit bridge extensions
-CFLAGS+= -Wa,-mppc64bridge
-
 DPADD=		${LDR_INTERP} ${LIBOFW} ${LIBFDT} ${LIBSA}
 LDADD=		${LDR_INTERP} ${LIBOFW} ${LIBFDT} ${LIBSA}
 
diff --git a/stand/powerpc/kboot/main.c b/stand/powerpc/kboot/main.c
index 633727ca6a7c..25eaf5064489 100644
--- a/stand/powerpc/kboot/main.c
+++ b/stand/powerpc/kboot/main.c
@@ -484,8 +484,18 @@ kboot_kseg_get(int *nseg, void **ptr)
 void
 _start(int argc, const char **argv, char **env)
 {
+// This makes error "variable 'sp' is uninitialized" be just a warning on clang.
+// Initializing 'sp' is not desired here as it would overwrite "r1" original value
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic warning "-Wuninitialized"
+#endif
 	register volatile void **sp asm("r1");
 	main((int)sp[0], (const char **)&sp[1]);
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+
 }
 
 /*
diff --git a/stand/powerpc/ofw/elf_freebsd.c b/stand/powerpc/ofw/elf_freebsd.c
index 76933064ff07..89811e965d6e 100644
--- a/stand/powerpc/ofw/elf_freebsd.c
+++ b/stand/powerpc/ofw/elf_freebsd.c
@@ -84,7 +84,7 @@ __elfN(ofw_exec)(struct preloaded_file *fp)
 	if ((error = md_load(fp->f_args, &mdp, &dtbp)) != 0)
 		return (error);
 
-	printf("Kernel entry at 0x%lx ...\n", e->e_entry);
+	printf("Kernel entry at 0x%x ...\n", entry);
 
 	dev_cleanup();
 	if (dtbp != 0) {
diff --git a/stand/powerpc/ofw/ppc64_elf_freebsd.c b/stand/powerpc/ofw/ppc64_elf_freebsd.c
index 96efb1618646..38c664228c12 100644
--- a/stand/powerpc/ofw/ppc64_elf_freebsd.c
+++ b/stand/powerpc/ofw/ppc64_elf_freebsd.c
@@ -87,7 +87,7 @@ ppc64_ofw_elf_exec(struct preloaded_file *fp)
 	if ((error = md_load64(fp->f_args, &mdp, &dtbp)) != 0)
 		return (error);
 
-	printf("Kernel entry at 0x%lx ...\n", entry);
+	printf("Kernel entry at 0x%x ...\n", entry);
 
 	dev_cleanup();