diff --git a/sys/conf/Makefile.riscv b/sys/conf/Makefile.riscv
--- a/sys/conf/Makefile.riscv
+++ b/sys/conf/Makefile.riscv
@@ -37,7 +37,7 @@
 KERNEL_LMA?=	0x80200000
 LDFLAGS+= --defsym='kernel_lma=${KERNEL_LMA}'
 
-.if !empty(DDB_ENABLED)
+.if !empty(DDB_ENABLED) || !empty(DTR_ENABLED) || !empty(HWPMC_ENABLED)
 CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls
 .endif
 
diff --git a/sys/conf/kmod.mk b/sys/conf/kmod.mk
--- a/sys/conf/kmod.mk
+++ b/sys/conf/kmod.mk
@@ -160,7 +160,8 @@
 .endif
 
 CFLAGS+=	${DEBUG_FLAGS}
-.if ${MACHINE_CPUARCH} == aarch64 || ${MACHINE_CPUARCH} == amd64
+.if ${MACHINE_CPUARCH} == aarch64 || ${MACHINE_CPUARCH} == amd64 || \
+    ${MACHINE_CPUARCH} == riscv
 CFLAGS+=	-fno-omit-frame-pointer -mno-omit-leaf-frame-pointer
 .endif