public.mk

nios中自定义指令集实现三角函数的软件部分。

#------------------------------------------------------------------------------
#                       BSP "PUBLIC" MAKEFILE CONTENT
#
# This file is intended to be included in an application or library
# Makefile that is using this BSP. You can create such a Makefile with
# the nios2-app-generate-makefile or nios2-lib-generate-makefile
# commands.
#
# The following variables must be defined before including this file:
#
#     ALT_LIBRARY_ROOT_DIR
#         Contains the path to the BSP top-level (aka root) directory
#------------------------------------------------------------------------------


#------------------------------------------------------------------------------
#                             LIBRARY INFORMATION
#------------------------------------------------------------------------------
# Name of system library as provided to application link "-msys-lib" flag:
# This one is special to a BSP. A conventional library won't provide
# such a thing, but instead will provide its list of .a files in
# the ALT_LIBRARY_NAMES, below. This is unique because it goes
# onto the link-line in a special place "-msys-lib" rather than "-l"
BSP_SYS_LIB := hal_bsp

# The name of the library *.a file.
BSP_LIB := lib$(BSP_SYS_LIB).a

# BSP Operating System Name
BSP_OS_TYPE := HAL

# Additional libraries to link against:
# An application including this file will prefix each library with "-l".
# For example, to include the Newlib math library "m" is included, which
# becomes "-lm" when linking the application.
ALT_LIBRARY_NAMES += m

# Additions to linker dependencies:
# Add *all* .a files that an application would link against here,
# relative to ALT_LIBRARY_ROOT_DIR. An application Makefile will
# typically add these directly to the list of dependencies required
# to build the executable target(s).
ALT_LDDEPS += $(ALT_LIBRARY_ROOT_DIR)/$(BSP_LIB)

# Is this library "Makeable"?
# Add to list of root library directories that support running 'make'
# to build them. Because libraries may or may not have a Makefile in their
# root, appending to this variable tells an application to run 'make' in
# the library root to build/update this library.
MAKEABLE_LIBRARY_ROOT_DIRS += $(ALT_LIBRARY_ROOT_DIR)


#------------------------------------------------------------------------------
#                                  PATHS
#------------------------------------------------------------------------------
# Path to the provided linker script.
BSP_LINKER_SCRIPT := $(ALT_LIBRARY_ROOT_DIR)/linker.x

# Path to the provided C language runtime initialization code.
BSP_CRT0 := $(ALT_LIBRARY_ROOT_DIR)/obj/HAL/src/crt0.o

# Include paths:
# The path to root of all header files that a library wishes to make
# available for an application's use is specified here. Note that this
# may not be *all* folders within a hierarchy. For example, if it is
# desired that the application developer type:
#   #include <sockets.h>
#   #include <ip/tcpip.h>
# With files laid out like this:
#   <root of library>/inc/sockets.h
#   <root of library>/inc/ip/tcpip.h
#
# Then, only <root of library>/inc need be added to the list of include
# directories. Alternatively, if you wish to be able to directly include
# all files in a hierarchy, separate paths to each folder in that
# hierarchy must be defined.

# The following are the "base" set of include paths for a HAL BSP.
# These paths are appended to the list that individual software
# components, drivers, etc., add in the generated portion of this
# file (below).
ALT_INCLUDE_DIRS_TO_APPEND += \
        $(ALT_LIBRARY_ROOT_DIR) \
        $(ALT_LIBRARY_ROOT_DIR)/drivers/inc \
        $(ALT_LIBRARY_ROOT_DIR)/HAL/inc

# Additions to linker library search-path:
# Here we provide a path to "our self" for the application to construct a
# "-L <path to BSP>" out of. This should contain a list of directories,
# relative to the library root, of all directories with .a files to link
# against.
ALT_LIBRARY_DIRS += $(ALT_LIBRARY_ROOT_DIR)


#------------------------------------------------------------------------------
#                               COMPILATION FLAGS
#------------------------------------------------------------------------------
# Default C pre-processor flags for a HAL-based BSP:
ALT_CPPFLAGS += -DSYSTEM_BUS_WIDTH=32 \
                -DALT_SINGLE_THREADED \
                -D__hal__ \
                -pipe


#------------------------------------------------------------------------------
#                              MANAGED CONTENT
#
# All content between the lines "START MANAGED" and "END MANAGED" below is
# generated based on variables in the BSP settings file when the
# nios2-bsp-generate-files command is invoked. If you wish to persist any
# information pertaining to the build process, it is recomended that you
# utilize the BSP settings mechanism to do so.
#------------------------------------------------------------------------------
#START MANAGED

# CPU Name 
# setting CPU_NAME is cpu
CPU_NAME = cpu

# Hardware Divider present. 
# setting HARDWARE_DIVIDE is true
ALT_CFLAGS += -mhw-div

# Hardware Multiplier present. 
# setting HARDWARE_MULTIPLY is true
ALT_CFLAGS += -mhw-mul

# Hardware Mulx present. 
# setting HARDWARE_MULX is false
ALT_CFLAGS += -mno-hw-mulx

# Debug Core present. 
# setting HAS_DEBUG_CORE is true
CPU_HAS_DEBUG_CORE = 1

# The SOPC System ID 
# setting SOPC_SYSID is 1572762114
SOPC_SYSID_FLAG += --id=1572762114

# The SOPC System ID Base Address 
# setting SOPC_SYSID_BASE_ADDRESS is 0x8000088
SOPC_SYSID_FLAG += --sidp=0x8000088

# Small-footprint (polled mode) driver 
# setting altera_avalon_jtag_uart_driver.enable_small_driver is false


# Build a custom version of newlib with the specified space-separated 
# compilerflags. 
# setting hal.custom_newlib_flags is none


# Add C++ support. This option increases code footprint by adding support for 
# C++ constructors. If false, adds -DALT_NO_C_PLUS_PLUS to ALT_CPPFLAGS in 
# public.mk, and reduces code footprint. 
# setting hal.enable_c_plus_plus is true


# When your application exits, close file descriptors, call C++ destructors, 
# etc. Code footprint can be reduced by disabling clean exit. If disabled, adds 
# -DALT_NO_CLEAN_EXIT to ALT_CPPFLAGS and -Wl,--defsym, exit=_exit to 
# ALT_LDFLAGS in public.mk. 
# setting hal.enable_clean_exit is true


# Add exit() support. This option increases code footprint if your "main()" 
# routine does "return" or call "exit()". If false, adds -DALT_NO_EXIT to 
# ALT_CPPFLAGS in public.mk, and reduces footprint. 
# setting hal.enable_exit is true


# Causes code to be compiled with gprof profiling enabled and the application 
# ELF to be linked with the GPROF library. If true, adds -DALT_PROVIDE_GMON to 
# ALT_CPPFLAGS and -pg to ALT_CFLAGS in public.mk. 
# setting hal.enable_gprof is false


# Enables lightweight device driver API. This reduces code and data footprint 
# by removing the HAL layer that maps device names (e.g. /dev/uart0) to file 
# descriptors. Instead, driver routines are called directly. The open(), 
# close(), and lseek() routines will always fail if called. The read(), 
# write(), fstat(), ioctl(), and isatty() routines only work for the stdio 
# devices. If true, adds -DALT_USE_DIRECT_DRIVERS to ALT_CPPFLAGS in public.mk. 
# setting hal.enable_lightweight_device_driver_api is false


# Adds code to emulate multiply and divide instructions in case they are 
# executed but aren't present in the CPU. Normally this isn't required because 
# the compiler won't use multiply and divide instructions that aren't present 
# in the CPU. If false, adds -DALT_NO_INSTRUCTION_EMULATION to ALT_CPPFLAGS in 
# public.mk. 
# setting hal.enable_mul_div_emulation is false
ALT_CPPFLAGS += -DALT_NO_INSTRUCTION_EMULATION

# The drivers are compiled with reduced functionality to reduce code footprint. 
# Not all drivers observe this setting. The altera_avalon_uart and 
# altera_avalon_jtag_uart drivers switch to a polled-mode of operation. The 
# altera_avalon_cfi_flash, altera_avalon_epcs_flash_controller, and 
# altera_avalon_lcd_16207 drivers are removed. You can define a symbol provided 
# by each driver to prevent it from being removed. If true, adds 
# -DALT_USE_SMALL_DRIVERS to ALT_CPPFLAGS in public.mk. 
# setting hal.enable_reduced_device_drivers is false


# Turns on HAL runtime stack checking feature. Enabling this setting causes 
# additional code to be placed into each subroutine call to generate an 
# exception if a stack collision occurs with the heap or statically allocated 
# data. If true, adds -DALT_STACK_CHECK and -mstack-check to ALT_CPPFLAGS in 
# public.mk. 
# setting hal.enable_runtime_stack_checking is false


# The BSP is compiled with optimizations to speedup HDL simulation such as 
# initializing the cache, clearing the .bss section, and skipping long delay 
# loops. If true, adds -DALT_SIM_OPTIMIZE to ALT_CPPFLAGS in public.mk. 
# setting hal.enable_sim_optimize is false


# Causes the small newlib (C library) to be used. This reduces code and data 
# footprint at the expense of reduced functionality. Several newlib features 
# are removed such as floating-point support in printf(), stdin input routines, 
# and buffered I/O. If true, adds -msmallc to ALT_LDFLAGS in public.mk. 
# setting hal.enable_small_c_library is false


# Enable SOPC Builder System ID. If a System ID SOPC Builder component is 
# connected to the CPU associated with this BSP, it will be enabled in the 
# creation of command-line arguments to download an ELF to the target. 
# Otherwise, system ID and timestamp values are left out of public.mk for 
# application Makefile "download-elf" target definition. If false, adds 
# --accept-bad-sysid to SOPC_SYSID_FLAG in public.mk. 
# setting hal.enable_sopc_sysid_check is true



#END MANAGED

# Append static include paths to paths specified by drivers/sw packages
ALT_INCLUDE_DIRS += $(ALT_INCLUDE_DIRS_TO_APPEND)