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tools: Using math.h from NuttX for wasm build

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wasm clang can't find math.h if using libm from toolchain.

It's OK to using math.h from NuttX since only declaration is needed for wasm build.

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
This commit is contained in:
Huang Qi 2023-06-07 17:57:14 +08:00 • committed by Xiang Xiao
parent 8e71885ee5
commit 712d008f66
2 changed files with 17 additions and 1 deletions
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1
include/wasm/.gitignore vendored Normal file
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@ -0,0 +1 @@
math.h

17
tools/Wasm.mk
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@ -57,6 +57,11 @@ CFLAGS_STRIP += $(ARCHCPUFLAGS) $(ARCHCFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(A
WCFLAGS += $(filter-out $(CFLAGS_STRIP),$(CFLAGS))
WCFLAGS += --sysroot=$(WSYSROOT) -nostdlib -D__NuttX__
# If CONFIG_LIBM not defined, then define it to 1
ifeq ($(CONFIG_LIBM),)
WCFLAGS += -DCONFIG_LIBM=1 -I$(APPDIR)$(DELIM)include$(DELIM)wasm
endif
WLDFLAGS = -z stack-size=$(STACKSIZE) -Wl,--initial-memory=$(INITIAL_MEMORY)
WLDFLAGS += -Wl,--export=main -Wl,--export=__main_argc_argv
WLDFLAGS += -Wl,--export=__heap_base -Wl,--export=__data_end
@ -121,8 +126,18 @@ WAMR_MODE ?= INT
WSRCS := $(MAINSRC) $(CSRCS)
WOBJS := $(WSRCS:=$(SUFFIX).wo)
# Copy math.h from $(TOPDIR)/include/nuttx/lib/math.h to $(APPDIR)/include/wasm/math.h
# Using declaration of math.h is OK for Wasm build
$(APPDIR)$(DELIM)include$(DELIM)wasm$(DELIM)math.h:
ifeq ($(CONFIG_LIBM),)
$(call COPYFILE,$(TOPDIR)$(DELIM)include$(DELIM)nuttx$(DELIM)lib$(DELIM)math.h,$@)
endif
all:: $(WBIN)
depend:: $(APPDIR)$(DELIM)include$(DELIM)wasm$(DELIM)math.h
$(WOBJS): %.c$(SUFFIX).wo : %.c
$(Q) $(WCC) $(WCFLAGS) -c $^ -o $@
@ -140,7 +155,7 @@ $(WBIN): $(WOBJS)
clean::
$(call DELFILE, $(WOBJS))
$(call DELFILE, $(WBIN))
$(call DELFILE, $(APPDIR)$(DELIM)include$(DELIM)wasm$(DELIM)math.h)
endif # WASM_BUILD