Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 1 | ## |
| 2 | ## This file is part of the coreboot project. |
| 3 | ## |
| 4 | ## Copyright (C) 2014 Google Inc |
| 5 | ## |
| 6 | ## This program is free software; you can redistribute it and/or modify |
| 7 | ## it under the terms of the GNU General Public License as published by |
| 8 | ## the Free Software Foundation; version 2 of the License. |
| 9 | ## |
| 10 | ## This program is distributed in the hope that it will be useful, |
| 11 | ## but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | ## GNU General Public License for more details. |
| 14 | ## |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 15 | |
Patrick Georgi | e47477e | 2014-05-17 18:38:10 +0200 | [diff] [blame] | 16 | # ccache integration |
| 17 | ifeq ($(CONFIG_CCACHE),y) |
| 18 | |
| 19 | CCACHE:=$(word 1,$(wildcard $(addsuffix /ccache,$(subst :, ,$(PATH))))) |
| 20 | ifeq ($(CCACHE),) |
| 21 | $(error ccache selected, but not found in PATH) |
| 22 | endif |
| 23 | |
| 24 | export CCACHE_COMPILERCHECK=content |
| 25 | export CCACHE_BASEDIR=$(top) |
| 26 | |
| 27 | $(foreach arch,$(ARCH_SUPPORTED), \ |
| 28 | $(eval CC_$(arch):=$(CCACHE) $(CC_$(arch)))) |
| 29 | |
| 30 | HOSTCC:=$(CCACHE) $(HOSTCC) |
| 31 | HOSTCXX:=$(CCACHE) $(HOSTCXX) |
| 32 | ROMCC=$(CCACHE) $(ROMCC_BIN) |
| 33 | endif |
Patrick Georgi | fadbe5f | 2014-05-17 18:26:38 +0200 | [diff] [blame] | 34 | |
| 35 | # scan-build integration |
| 36 | ifneq ($(CCC_ANALYZER_OUTPUT_FORMAT),) |
| 37 | |
| 38 | ifeq ($(CCC_ANALYZER_ANALYSIS),) |
| 39 | export CCC_ANALYZER_ANALYSIS := -analyzer-opt-analyze-headers |
| 40 | endif |
| 41 | |
| 42 | $(foreach arch,$(ARCH_SUPPORTED), \ |
Patrick Georgi | e47477e | 2014-05-17 18:38:10 +0200 | [diff] [blame] | 43 | $(eval CC_$(arch):=CCC_CC="$(CC_$(arch))" $(CC) )) |
Patrick Georgi | fadbe5f | 2014-05-17 18:26:38 +0200 | [diff] [blame] | 44 | |
| 45 | HOSTCC:=CCC_CC="$(HOSTCC)" $(CC) |
| 46 | HOSTCXX:=CCC_CXX="$(HOSTCXX)" $(CXX) |
| 47 | ROMCC=CCC_CC="$(ROMCC_BIN)" $(CC) |
| 48 | endif |
| 49 | |
Patrick Georgi | 27ef602 | 2015-04-30 14:25:14 +0200 | [diff] [blame] | 50 | COREBOOT_STANDARD_STAGES := bootblock libverstage verstage romstage ramstage |
| 51 | MAP-libverstage := verstage |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 52 | |
Patrick Georgi | 8688def | 2015-03-28 16:27:42 +0100 | [diff] [blame] | 53 | ARCHDIR-i386 := x86 |
| 54 | ARCHDIR-x86_32 := x86 |
Stefan Reinauer | 4659113 | 2015-03-15 04:19:58 +0100 | [diff] [blame] | 55 | ARCHDIR-x86_64 := x86 |
Patrick Georgi | 8688def | 2015-03-28 16:27:42 +0100 | [diff] [blame] | 56 | ARCHDIR-arm := arm |
| 57 | ARCHDIR-arm64 := arm64 |
| 58 | ARCHDIR-riscv := riscv |
| 59 | ARCHDIR-mips := mips |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 60 | |
Stefan Reinauer | d146ac6 | 2015-07-31 13:50:03 -0700 | [diff] [blame] | 61 | CFLAGS_arm += |
| 62 | CFLAGS_arm64 += -mgeneral-regs-only |
| 63 | CFLAGS_mips += -mips32r2 -G 0 -mno-abicalls -fno-pic |
| 64 | CFLAGS_riscv += |
| 65 | CFLAGS_x86_32 += |
Patrick Georgi | 6682109 | 2015-07-08 18:12:49 +0200 | [diff] [blame] | 66 | CFLAGS_x86_64 += -mcmodel=large -mno-red-zone |
Stefan Reinauer | 4659113 | 2015-03-15 04:19:58 +0100 | [diff] [blame] | 67 | |
Julius Werner | 8d8799a | 2014-12-19 16:11:14 -0800 | [diff] [blame] | 68 | # Some boards only provide 2K stacks, so storing lots of data there leads to |
| 69 | # problems. Since C rules don't allow us to statically determine the maximum |
| 70 | # stack use, we use 1.5K as heuristic, assuming that we typically have lots |
| 71 | # of tiny stack frames and the odd large one. |
| 72 | # |
| 73 | # Store larger buffers in BSS, use MAYBE_STATIC to share code with __PRE_RAM__ |
| 74 | # on x86. |
| 75 | # Since GCCs detection of dynamic array bounds unfortunately seems to be |
| 76 | # very basic, you'll sometimes have to use a static upper bound for the |
| 77 | # size and an assert() to make sure it's honored (see gpio_base3_value() |
| 78 | # for an example). |
| 79 | # (If you absolutely need a larger stack frame and are 100% sure it cannot |
| 80 | # cause problems, you can whitelist it with #pragma diagnostic.) |
| 81 | CFLAGS_arm += -Wstack-usage=1536 |
| 82 | CFLAGS_arm64 += -Wstack-usage=1536 |
| 83 | CFLAGS_mips += -Wstack-usage=1536 |
| 84 | CFLAGS_riscv += -Wstack-usage=1536 |
| 85 | |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 86 | toolchain_to_dir = \ |
| 87 | $(foreach arch,$(ARCH_SUPPORTED),\ |
Patrick Georgi | b145b83 | 2014-05-17 15:08:47 +0200 | [diff] [blame] | 88 | $(eval CPPFLAGS_$(arch) += \ |
Patrick Georgi | 4ebd3d9 | 2014-05-17 14:02:08 +0200 | [diff] [blame] | 89 | -Isrc/arch/$(ARCHDIR-$(arch))/include)) |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 90 | |
| 91 | # set_stage_toolchain: Decides the toolchain to be used by every stage |
| 92 | # E.g.: If bootblock is x86_32, it sets ARCH-BOOTBLOCK-y = x86_32, whereas |
| 93 | # ARCH-BOOTBLOCK-n = armv7. Then, ARCH-BOOTBLOCK-y can be used anywhere to |
| 94 | # decide the compiler toolchain for bootblock stage |
| 95 | # This step is essential for initializing the toolchain for coreboot standard |
| 96 | # stages i.e. bootblock, romstage and ramstage, since it acts as the second |
| 97 | # parameter to create_class_compiler below in init_standard_toolchain |
Patrick Georgi | 27ef602 | 2015-04-30 14:25:14 +0200 | [diff] [blame] | 98 | map_stage = $(strip $(if $(MAP-$(1)),$(MAP-$(1)),$(1))) |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 99 | set_stage_toolchain= \ |
Patrick Georgi | 27ef602 | 2015-04-30 14:25:14 +0200 | [diff] [blame] | 100 | $(foreach arch,$(ARCH_SUPPORTED),$(eval ARCH-$(1)-$($(shell echo CONFIG_ARCH_$(call map_stage,$(1))_$(arch) | tr '[:lower:]' '[:upper:]')) := $(arch))) |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 101 | |
| 102 | # create_class_compiler: Used to create compiler tool set for |
| 103 | # special classes |
| 104 | # @1: special class |
| 105 | # @2: compiler set to be used |
| 106 | # e.g.: smm special class uses i386 as compiler set |
| 107 | define create_class_compiler |
Marc Jones | d1f840b | 2015-01-22 16:18:49 +0800 | [diff] [blame] | 108 | $(if $(2),,$(error building $(1) without the required toolchain)) |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 109 | CC_$(1) := $(CC_$(2)) |
| 110 | LD_$(1) := $(LD_$(2)) |
| 111 | NM_$(1) := $(NM_$(2)) |
Daisuke Nojiri | 9b1cb58 | 2014-06-19 19:01:34 -0700 | [diff] [blame] | 112 | AR_$(1) := $(AR_$(2)) |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 113 | OBJCOPY_$(1) := $(OBJCOPY_$(2)) |
| 114 | OBJDUMP_$(1) := $(OBJDUMP_$(2)) |
| 115 | STRIP_$(1) := $(STRIP_$(2)) |
| 116 | READELF_$(1) := $(READELF_$(2)) |
Marc Jones | a38ccfd | 2014-11-06 15:50:22 -0700 | [diff] [blame] | 117 | CFLAGS_$(1) = $$(CFLAGS_common) $$(CFLAGS_$(2)) |
| 118 | CPPFLAGS_$(1) = $$(CPPFLAGS_common) $$(CPPFLAGS_$(2)) |
Patrick Georgi | 527f392 | 2015-06-04 13:31:38 +0200 | [diff] [blame] | 119 | COMPILER_RT_$(1) := $$(COMPILER_RT_$(2)) |
| 120 | COMPILER_RT_FLAGS_$(1) := $$(COMPILER_RT_FLAGS_$(2)) |
Aaron Durbin | d4dd44c | 2015-09-06 10:15:17 -0500 | [diff] [blame] | 121 | LDFLAGS_$(1) = $$(LDFLAGS_common) $$(LDFLAGS_$(2)) |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 122 | endef |
| 123 | |
Furquan Shaikh | 133096b | 2014-07-31 09:28:55 -0700 | [diff] [blame] | 124 | # define_class: Allows defining any program as dynamic class and compiler tool |
| 125 | # set for the same based on the architecture for which the program is to be |
| 126 | # compiled |
| 127 | # @1: program (class name) |
| 128 | # @2: architecture for which the program needs to be compiled |
| 129 | # IMP: Ensure that define_class is called before any .c or .S files are added to |
| 130 | # the class of the program. Check subdirs-y for order of subdirectory inclusions |
| 131 | define define_class |
| 132 | classes-y += $(1) |
| 133 | $(eval $(call create_class_compiler,$(1),$(2))) |
| 134 | endef |
| 135 | |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 136 | # initialize standard toolchain (CC,AS and others) for give stage |
| 137 | # @1 : stage for which the toolchain is to be initialized |
| 138 | init_standard_toolchain = \ |
Patrick Georgi | 4ebd3d9 | 2014-05-17 14:02:08 +0200 | [diff] [blame] | 139 | $(eval $(call set_stage_toolchain,$(1))) \ |
Patrick Georgi | 262f31c | 2014-05-17 15:13:40 +0200 | [diff] [blame] | 140 | $(eval $(call create_class_compiler,$(1),$(ARCH-$(1)-y))) |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 141 | |
| 142 | init_stages = \ |
| 143 | $(foreach stage,$(COREBOOT_STANDARD_STAGES),$(eval $(call init_standard_toolchain,$(stage)))) |
| 144 | |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 145 | $(eval $(call toolchain_to_dir)) |
| 146 | |
| 147 | $(call init_stages) |
Patrick Georgi | 1053f65 | 2015-03-26 21:39:12 +0100 | [diff] [blame] | 148 | |
| 149 | # Test for coreboot toolchain (except when explicitely not requested) |
| 150 | ifneq ($(NOCOMPILE),1) |
| 151 | # only run if we're doing a build (not for tests, kconfig, ...), using gcc |
| 152 | # rationale: gcc versions by Linux distributions tend to be quite messed up |
| 153 | COMPILERFAIL:=0 |
| 154 | ifeq ($(CONFIG_COMPILER_GCC),y) |
| 155 | ifneq ($(CONFIG_ANY_TOOLCHAIN),y) |
| 156 | $(foreach arch,$(sort $(foreach stage,$(COREBOOT_STANDARD_STAGES),$(ARCH-$(stage)-y))), \ |
| 157 | $(if $(shell $(CC_$(arch)) -v 2>&1 |grep -q "gcc version .*coreboot toolchain" || echo not-coreboot), \ |
| 158 | $(eval COMPILERFAIL:=1)$(warning Please use the coreboot toolchain for '$(arch)' (or prove that your toolchain works)))) |
| 159 | endif |
| 160 | endif |
| 161 | endif |
| 162 | ifeq ($(COMPILERFAIL),1) |
| 163 | $(error consider building our compilers: make crossgcc) |
| 164 | endif |