Add support for ddb(4).

Sponsored by:	DARPA, AFRL
Sponsored by:	HEIF5

2 files changed, 5 insertions, 1 deletions

diff --git a/sys/conf/Makefile.riscv b/sys/conf/Makefile.riscv
index 27338b4..8721b53 100644
--- a/sys/conf/Makefile.riscv
+++ b/sys/conf/Makefile.riscv
@@ -29,7 +29,7 @@ S=	../../..
 INCLUDES+= -I$S/contrib/libfdt
 
 .if !empty(DDB_ENABLED)
-CFLAGS += -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer
+CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls
 .endif
 
 %BEFORE_DEPEND
diff --git a/sys/conf/files.riscv b/sys/conf/files.riscv
index cfce99b..7b1a040 100644
--- a/sys/conf/files.riscv
+++ b/sys/conf/files.riscv
@@ -23,6 +23,9 @@ riscv/riscv/clock.c		standard
 riscv/riscv/copyinout.S		standard
 riscv/riscv/copystr.c		standard
 riscv/riscv/cpufunc_asm.S	standard
+riscv/riscv/db_disasm.c		optional	ddb
+riscv/riscv/db_interface.c	optional	ddb
+riscv/riscv/db_trace.c		optional	ddb
 riscv/riscv/devmap.c		standard
 riscv/riscv/dump_machdep.c	standard
 riscv/riscv/elf_machdep.c	standard
@@ -44,4 +47,5 @@ riscv/riscv/trap.c		standard
 riscv/riscv/timer.c		standard
 riscv/riscv/uio_machdep.c	standard
 riscv/riscv/uma_machdep.c	standard
+riscv/riscv/unwind.c		optional	ddb | kdtrace_hooks | stack
 riscv/riscv/vm_machdep.c	standard