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zephyr/arch/nios2/Makefile

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nios2: Makefile: optionally include SOC Makefile It may not necessarily exist. Change-Id: I5c79d7538edef78e38f7e05b004e69e0259dd079 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-18 00:15:25 +08:00
-include $(srctree)/arch/$(ARCH)/soc/$(SOC_PATH)/Makefile
nios2: basic build, non-functional Basic build framework for Nios2. Everything is stubbed out, we just want to have a build going so that we can start to parallelize implementation tasks. This patch is not intended to be functional, but should be able to produce a binary for all the nanokernel-based sanity checks. Change-Id: I12dd8ca4a2273f7662bee46175822c9bbd99202a Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-04-22 05:47:09 +08:00
nios2: support more global pointer scenarios We now allow use of -mgpopt=global and -mgpopt=data. The 'global' option is now the default instead of compiler-default local, expanding global pointer usage to all small data in the system. For systems where all RAM is less than 64K, the 'data' option may be appropriate. Some fixes had to be made to the system in order to get around some issues: * prep_c.c no longer uses fake linker variables to figure out the size of data or BSS, as these gave the linker fits as it tried to compute relative addresses to them. * _k_task_ptr_idle is create by sysgen and placed in a special section. Any small data in a special section needs to be declared extern with __attribute__((section)) else the compiler will assume it's in .sdata. * same situation with extern references to k_pipe_t (fixed pipe_priv test) For legacy applications being ported to Nios II which do things that freak out global pointer calculation, it can be disabled entirely. Change-Id: I5eb86ee8aefb8e2fac49c5cdd104ee19cea23f6f Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-01 07:45:08 +08:00
ifdef CONFIG_GP_NONE
gpopt = none
else ifdef CONFIG_GP_LOCAL
gpopt = local
else ifdef CONFIG_GP_GLOBAL
gpopt = global
else ifdef CONFIG_GP_ALL_DATA
gpopt = data
endif
# Set Global Pointer option based on Kconfig.
arch_cflags += -mgpopt=$(gpopt)
nios2: turn on function and data sections Change-Id: I5bd841873207d1106a82b3e05187ee401b6c5478 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-04-29 05:16:00 +08:00
# Put functions and data in their own binary sections so that ld can
# garbage collect them
arch_cflags += $(call cc-option,-ffunction-sections) \
$(call cc-option,-fdata-sections)
nios2: set appropriate compiler flags for math support Nios II CPUs vary in configuration on whether they support 'mul', 'mulx', and 'div' family of instructions. The compiler can be told to use GCC integer library routines instead if needed. Ideally we would just pull the configuration out of system.h, but pulling include file #defines into the Make environment will involve some build system work that is best left to a later improvement. We've decided to take this build-time approach rather than handle unimplemented instruction exceptions, so remove the hook in exception.S Change-Id: I05be0d5ed4c1a49b23dca1550ee66fd5891044d2 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-25 02:27:39 +08:00
# TODO Find a way to pull this out of system.h somehow
# instead of having Kconfig for it
ifdef CONFIG_HAS_MUL_INSTRUCTION
arch_cflags += -mhw-mul
else
arch_cflags += -mno-hw-mul
endif
ifdef CONFIG_HAS_MULX_INSTRUCTION
arch_cflags += -mhw-mulx
else
arch_cflags += -mno-hw-mulx
endif
ifdef CONFIG_HAS_DIV_INSTRUCTION
arch_cflags += -mhw-div
else
arch_cflags += -mno-hw-div
endif
nios2: provide and include soc-specific headers BSP builds for Nios II generate a linker.h and system.h which reflects the configuration for that CPU. This can vary depending on how the CPU is wired up in QSYS, so it needs to be at the SOC level--we essentially treat any given CPU configuration as a SOC in Zephyr build terms. Include these files from <arch/cpu.h>. Change-Id: I12f76600107fec1a14a2f9cb82b0f55915ec03a6 Origin: Altera Quartus tools, machine generated Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-05-05 04:52:25 +08:00
# Nios II CPUs are configurable and we need to pull in the generated
# headers system.h and linker.h which specify what is enabled and where
# everything is.
nios2: add arch/nios2/soc/<soc>/include to linker include path Linker scripts for Nios II will also need these headers as it specifies the device's physical layout and various important vector addresses. Change-Id: Ie9efaf19e53d2493eed7b9783052393d7ea9dd0f Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-05-10 07:51:10 +08:00
soc_ld_include := -I$(srctree)/arch/$(ARCH)/soc/$(SOC_PATH)/include
arch_cflags += $(soc_ld_include)
EXTRA_LINKER_CMD_OPT += $(soc_ld_include)
nios2: provide and include soc-specific headers BSP builds for Nios II generate a linker.h and system.h which reflects the configuration for that CPU. This can vary depending on how the CPU is wired up in QSYS, so it needs to be at the SOC level--we essentially treat any given CPU configuration as a SOC in Zephyr build terms. Include these files from <arch/cpu.h>. Change-Id: I12f76600107fec1a14a2f9cb82b0f55915ec03a6 Origin: Altera Quartus tools, machine generated Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-05-05 04:52:25 +08:00
nios2: move cflags hacks to main Nios2 Makefile These are for any Nios II at this stage of bring-up. Change-Id: Ie4d0c80df164f81f6615ac35d3f42235b04870f1 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-04-29 05:15:09 +08:00
KBUILD_AFLAGS += $(arch_cflags)
KBUILD_CFLAGS += $(arch_cflags)
KBUILD_CXXFLAGS += $(arch_cflags)
build: Introduce concept of SoC specific build flags Introduce a soc-cflags, soc-cxxflags, and soc-aflags as a means for SoC specific compiler flags to be set without manipulating Kbuild options directly. Change-Id: I2c8f5019fb237429e59717ef96bd4251a61dc1a5 Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2016-05-26 23:32:04 +08:00
soc-cxxflags ?= $(soc-cflags)
soc-aflags ?= $(soc-cflags)
KBUILD_CFLAGS += $(soc-cflags)
KBUILD_CXXFLAGS += $(soc-cxxflags)
KBUILD_AFLAGS += $(soc-aflags)
nios2: generate kernel image in Intel HEX format Altera tools for creating .pof files for flashing onto their FPGAs require UFM data to be in this special format. Extend the current 'all' and 'zephyr' targets to additionally create this .hex file using objcopy, with the same exclusions as the existing rule for .bin files. Change-Id: I75293fba47536545359f817a1f2c1ae905b9d25c Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-05-27 01:47:07 +08:00
zephyr: $(KERNEL_HEX_NAME)
all: $(KERNEL_HEX_NAME)
nios2-qemu: experimental QEMU target for Nios II Change-Id: I4c2413000166b4a8c221fab81f3d8da98a88806b Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-03 01:48:59 +08:00