splits write.c, adds iss implementation and adds CMake build system

libwrap/CMakeLists.txt

@@ -1,77 +1,40 @@
-#cmake_minimum_required(VERSION 3.12)
-project(libwrap)
-
-message(STATUS " here 2 in libwrap")
-set(LIBRARY_NAME libwrap)
-set(STATIC_LIBRARY_FLAGS "rcs")
-
-# Create object library for libwrap
+include(CMakePrintHelpers)
 set(LIB_SOURCES
-   sys/_exit.c
-   sys/close.c
-   sys/execve.c
-   sys/fork.c
-   sys/fstat.c
-   sys/getpid.c
-   sys/isatty.c
-   sys/kill.c
-   sys/link.c
-   sys/lseek.c
-   sys/open.c
-   sys/openat.c
-   sys/printf.c
-   sys/puts.c
-   sys/read.c
-   sys/sbrk.c
-   sys/stat.c
-   sys/times.c
-   sys/unlink.c
-   sys/wait.c
-  # sys/write.c    
+    sys/_exit.c
+    sys/close.c
+    sys/execve.c
+    sys/fork.c
+    sys/fstat.c
+    sys/getpid.c
+    sys/isatty.c
+    sys/kill.c
+    sys/link.c
+    sys/lseek.c
+    sys/open.c
+    sys/openat.c
+    sys/printf.c
+    sys/puts.c
+    sys/read.c
+    sys/sbrk.c
+    sys/stat.c
+    sys/times.c
+    sys/unlink.c
+    sys/wait.c
+    sys/write.c    
     # Standard library
     stdlib/malloc.c    
     # Miscellaneous
     misc/write_hex.c
 ) 
+set(WRAP_ARGS "")
+foreach(FILE ${LIB_SOURCES})
+    get_filename_component(DIR ${FILE} DIRECTORY)
+    if(DIR STREQUAL "sys")
+    get_filename_component(BASE_NAME ${FILE} NAME_WE)
+    list(APPEND WRAP_ARGS "LINKER:--wrap=${BASE_NAME}")
+    endif()
+endforeach()
 
-if(SEMIHOSTING)
-    list(APPEND LIB_SOURCES 
-        semihosting/semihosting.c
-        semihosting/trap.c )
-    
-endif()
+add_library(wrap STATIC ${LIB_SOURCES} ../env/${BOARD_BASE}/bsp_write.c ../env/${BOARD_BASE}/bsp_read.c)
+target_link_options(wrap INTERFACE ${WRAP_ARGS})
 
-#add_library(${LIBRARY_NAME} OBJECT ${LIB_SOURCES})
-add_library(${LIBRARY_NAME} STATIC ${LIB_SOURCES})
-set_target_properties(${LIBRARY_NAME} PROPERTIES ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bare-metal-bsp/${PROJECT_NAME})
-
-message(STATUS " CMAKE_BINARY_DIR: ${CMAKE_BINARY_DIR}   ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}")
-
-# Retrieve the output directory for the library
-get_target_property(LIBRARY_PATH ${LIBRARY_NAME} ARCHIVE_OUTPUT_DIRECTORY)
-
-# Print the path to the console (for debugging purposes)
-message(STATUS "The library output path is: ${LIBRARY_PATH}")
-
-# Include directories
-target_include_directories(${LIBRARY_NAME} PRIVATE
-    ${CMAKE_CURRENT_SOURCE_DIR}
-    ${BSP_BASE}/include
-    include/
-    ${BSP_BASE}/env
-    ${BSP_BASE}/env/${BOARD}
-    ${BSP_BASE}/drivers
-)
-
-
-
-#link global_compile_options to this libraries
-#target_link_libraries(${PROJECT_NAME} PRIVATE global_compile_options)
-
-# Compile definitions
-#target_compile_definitions(libwrap_objects PRIVATE
-#    BOARD_${BOARD}
-#)
-
-# Export objects to parent scope
-#set(LIBWRAP_OBJECTS $<TARGET_OBJECTS:${PROJECT_NAME}> PARENT_SCOPE)