switch fail markers to function symbols

wasm.just

@@ -22,7 +22,6 @@ CROSS_CFLAGS_NOWASM := "\
 -ffunction-sections \
 -fdata-sections \
 -ffreestanding \
--fomit-frame-pointer \
 -ggdb3 \
 "
 CROSS_LDFLAGS_NOWASM := "\
@@ -114,7 +113,7 @@ CROSS_INCLUDES := f"\
 
 # LINUX-POSIX
 
-LINUX_CFLAGS := f"-I./targets/wasm-host {{ LINUX_CFLAGS_NOWASM }}"
+LINUX_CFLAGS := f"-I./targets/wasm-host {{LINUX_CFLAGS_NOWASM}}"
 LINUX_LDFLAGS := f"-Wl,-rpath,{{LIBIWASM_LINUX_DEBUG}} -L{{LIBIWASM_LINUX_DEBUG}} -liwasm {{LINUX_LDFLAGS_NOWASM}}"
 LINUX_INCLUDES := f"\
 -I{{WAMR_ROOT}}/core/iwasm/include \
@@ -216,7 +215,6 @@ build-c-host-linux module:
       -c targets/c-host/linux.c \
       -o {{ BUILD_DIR }}-{{ module }}/c_host.o
 
-
 [doc("Insert the C function into the host program (no WASM)")]
 [group("2: build host")]
 build-c-host module target="fail":