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metal : option to embed MSL source into compiled binary (#1842)

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* ggml : embed Metal library source (ggml-metal.metal) into binary

enable by setting WHISPER_EMBED_METAL_LIBRARY

* rename the build option

* rename the preprocessor directive

* generate Metal library embedding assembly on-fly during build process
This commit is contained in:
Didzis Gosko
2024-02-11 16:41:41 +02:00
committed by GitHub
parent f273e66dc6
commit 163e74b6c3
3 changed files with 52 additions and 0 deletions
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Makefile
+18
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@@ -345,6 +345,24 @@ ggml-metal.o: ggml-metal.m ggml-metal.h
$(CC) $(CFLAGS) -c $< -o $@
WHISPER_OBJ += ggml-metal.o
ifdef WHISPER_METAL_EMBED_LIBRARY
CFLAGS += -DGGML_METAL_EMBED_LIBRARY
ggml-metal-embed.o: ggml-metal.metal
@echo "Embedding Metal library"
$(eval TEMP_ASSEMBLY=$(shell mktemp))
@echo ".section __DATA, __ggml_metallib" > $(TEMP_ASSEMBLY)
@echo ".globl _ggml_metallib_start" >> $(TEMP_ASSEMBLY)
@echo "_ggml_metallib_start:" >> $(TEMP_ASSEMBLY)
@echo ".incbin \"$<\"" >> $(TEMP_ASSEMBLY)
@echo ".globl _ggml_metallib_end" >> $(TEMP_ASSEMBLY)
@echo "_ggml_metallib_end:" >> $(TEMP_ASSEMBLY)
@$(AS) $(TEMP_ASSEMBLY) -o $@
@rm -f ${TEMP_ASSEMBLY}
WHISPER_OBJ += ggml-metal-embed.o
endif
endif
libwhisper.a: $(WHISPER_OBJ)