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I was tracing the rules in build/core/Makefile to understand how system.img is generated. I came across the below rule:

INTERNAL_SYSTEMIMAGE_FILES := $(filter $(TARGET_OUT)/%, 
 $(ALL_GENERATED_SOURCES) 
 $(ALL_DEFAULT_INSTALLED_MODULES) 
 $(PDK_FUSION_SYSIMG_FILES) 
 $(RECOVERY_RESOURCE_ZIP)) 
 $(PDK_FUSION_SYMLINK_STAMP)

I searched for ALL_GENERATED_SOURCES in androidxref/9.0.0_r3 and found it is set to my_generated_sources in build/core/binary.mk

ALL_GENERATED_SOURCES += $(my_generated_sources)

which is further set to LOCAL_GENERATED_SOURCES in that file.

 my_generated_sources := $(LOCAL_GENERATED_SOURCES)

I don't understand what it stands for (I know that LOCAL_SRC means source files to build that module, but this I don't understand).

I tried grepping this variable in Android.mk, but the results are far from clear.

I ran grep -Hrn LOCAL_GENERATED_SOURCES external/ | less and found some Android.mk files that use LOCAL_GENERATED_SOURCES.

I followed several files, like external/mesa3d/src/mesa/program/Android.mk and found two lines corresponding to it:

LOCAL_GENERATED_SOURCES := 
 $(addprefix $(intermediates)/program/,$(generated_sources_basenames))

and

LOCAL_GENERATED_SOURCES += $(MESA_GEN_NIR_H) 
 $(MESA_GEN_GLSL_H)

Has anyone traced AOSP Makefiles before (to understand how .img's are built), or is there a better/proper way to do it?

makefile android-source

share|improve this question

edited Apr 15 at 14:40

HMM

asked Mar 24 at 13:10

HMMHMM

29110

add a comment | 

0

I was tracing the rules in build/core/Makefile to understand how system.img is generated. I came across the below rule:

INTERNAL_SYSTEMIMAGE_FILES := $(filter $(TARGET_OUT)/%, 
 $(ALL_GENERATED_SOURCES) 
 $(ALL_DEFAULT_INSTALLED_MODULES) 
 $(PDK_FUSION_SYSIMG_FILES) 
 $(RECOVERY_RESOURCE_ZIP)) 
 $(PDK_FUSION_SYMLINK_STAMP)

I searched for ALL_GENERATED_SOURCES in androidxref/9.0.0_r3 and found it is set to my_generated_sources in build/core/binary.mk

ALL_GENERATED_SOURCES += $(my_generated_sources)

which is further set to LOCAL_GENERATED_SOURCES in that file.

 my_generated_sources := $(LOCAL_GENERATED_SOURCES)

I don't understand what it stands for (I know that LOCAL_SRC means source files to build that module, but this I don't understand).

I tried grepping this variable in Android.mk, but the results are far from clear.

I ran grep -Hrn LOCAL_GENERATED_SOURCES external/ | less and found some Android.mk files that use LOCAL_GENERATED_SOURCES.

I followed several files, like external/mesa3d/src/mesa/program/Android.mk and found two lines corresponding to it:

LOCAL_GENERATED_SOURCES := 
 $(addprefix $(intermediates)/program/,$(generated_sources_basenames))

and

LOCAL_GENERATED_SOURCES += $(MESA_GEN_NIR_H) 
 $(MESA_GEN_GLSL_H)

Has anyone traced AOSP Makefiles before (to understand how .img's are built), or is there a better/proper way to do it?

makefile android-source

share|improve this question

edited Apr 15 at 14:40

HMM

asked Mar 24 at 13:10

HMMHMM

29110

add a comment | 

I was tracing the rules in build/core/Makefile to understand how system.img is generated. I came across the below rule:

INTERNAL_SYSTEMIMAGE_FILES := $(filter $(TARGET_OUT)/%, 
 $(ALL_GENERATED_SOURCES) 
 $(ALL_DEFAULT_INSTALLED_MODULES) 
 $(PDK_FUSION_SYSIMG_FILES) 
 $(RECOVERY_RESOURCE_ZIP)) 
 $(PDK_FUSION_SYMLINK_STAMP)

I searched for ALL_GENERATED_SOURCES in androidxref/9.0.0_r3 and found it is set to my_generated_sources in build/core/binary.mk

ALL_GENERATED_SOURCES += $(my_generated_sources)

which is further set to LOCAL_GENERATED_SOURCES in that file.

 my_generated_sources := $(LOCAL_GENERATED_SOURCES)

I don't understand what it stands for (I know that LOCAL_SRC means source files to build that module, but this I don't understand).

I tried grepping this variable in Android.mk, but the results are far from clear.

I ran grep -Hrn LOCAL_GENERATED_SOURCES external/ | less and found some Android.mk files that use LOCAL_GENERATED_SOURCES.

I followed several files, like external/mesa3d/src/mesa/program/Android.mk and found two lines corresponding to it:

LOCAL_GENERATED_SOURCES := 
 $(addprefix $(intermediates)/program/,$(generated_sources_basenames))

and

LOCAL_GENERATED_SOURCES += $(MESA_GEN_NIR_H) 
 $(MESA_GEN_GLSL_H)

Has anyone traced AOSP Makefiles before (to understand how .img's are built), or is there a better/proper way to do it?

makefile android-source

share|improve this question

edited Apr 15 at 14:40

HMM

asked Mar 24 at 13:10

HMMHMM

29110

INTERNAL_SYSTEMIMAGE_FILES := $(filter $(TARGET_OUT)/%, 
 $(ALL_GENERATED_SOURCES) 
 $(ALL_DEFAULT_INSTALLED_MODULES) 
 $(PDK_FUSION_SYSIMG_FILES) 
 $(RECOVERY_RESOURCE_ZIP)) 
 $(PDK_FUSION_SYMLINK_STAMP)

ALL_GENERATED_SOURCES += $(my_generated_sources)

 my_generated_sources := $(LOCAL_GENERATED_SOURCES)

LOCAL_GENERATED_SOURCES := 
 $(addprefix $(intermediates)/program/,$(generated_sources_basenames))

LOCAL_GENERATED_SOURCES += $(MESA_GEN_NIR_H) 
 $(MESA_GEN_GLSL_H)

share|improve this question

edited Apr 15 at 14:40

HMM

asked Mar 24 at 13:10

HMMHMM

29110

share|improve this question

edited Apr 15 at 14:40

HMM

asked Mar 24 at 13:10

HMMHMM

29110

asked Mar 24 at 13:10

HMMHMM

29110

asked Mar 24 at 13:10

HMMHMM

29110