Qcom_hexagon compiles the method of automatically obtaining directories and specific files

1. Introduction

This article mainly introduces how to add the method of obtaining directories and .c files in hexagon.min in Qualcomm hexagon ide for reference.

Second, the specific order

OBJ_PATH := ./algo_lib

INCLUDE_PATH := $(shell find $(OBJ_PATH ) -type d)
SRC_C_FILE := $(foreach dir, $(INCLUDE_PATH ), $(wildcard $(dir)/*.c))
#add source c files
capi_awinic_iv_sp_C_SRCS += $(basename $(SRC_C_FILE))
#add the path of .h file
INCDIRS += $(INCLUDE_PATH )

Three, command supplementary introduction

find command:

For details, see the link: " Linux Common Commands "

foreach command:

$(foreach <var>,<list>,<text>)

Meaning: This function means to take out the words in the parameter; one by one and put them in the variable specified by the parameter;, and then execute the expression contained in <text>;. every time ; will return a string, during the loop, ; Each returned string will be separated by a space, and finally when the entire loop ends, ; The entire string (separated by spaces) composed of each string returned will be the return value of the foreach function.

Therefore, ; is preferably a variable name, ; can be an expression, and ; is generally used in ; this parameter to enumerate the words in ; in turn. for example:

names := a b c d

files := $(foreach n,$(names),$(n).o)

In the above example, $The\; words\; in\; (namee)will\; be\; taken\; out\; one\; by\; one\; and\; stored\; in\; the\; variable"n","$ (n).o"$\left(n\right)"calculates\; a\; value,\; these\; values\; are\; separated\; by\; spaces,\; and\; finally\; used\; as\; the\; return\; oftheforeachfunction,\; so\; thevalue$ of (files) is "ao bo co do".

Note that the ; parameter in foreach is a temporary local variable. After the foreach function is executed, the parameter ; variable will no longer work, and its scope is only in the foreach function.

wildcard command:

Order	meaning
wildcard $(dir)/*.c	Represents all .c files in the $(dir) directory

basename command:

Order	meaning
basename directory name/file name	Get the last directory name or file name
basename file name file suffix	Get the file name at the end and remove the file suffix at the same time
basename -s file suffix file name	(Same as above) Get the file name at the end and remove the file suffix at the same time
basename -s file name file suffix	Get only the file suffix, remove the file name
basename -a directory1/file1 directory2/file2	Output the names of multiple directories or files at the same time (when using basename, if the directory or file does not exist, no error will be reported)

Four, summary

This article mainly introduces how to add the method of obtaining directories and .c files in hexagon.min in Qualcomm hexagon ide for reference. Welcome to discuss and exchange~