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 | ## |
| 15 | ## You should have received a copy of the GNU General Public License |
| 16 | ## along with this program; if not, write to the Free Software |
Patrick Georgi | b890a12 | 2015-03-26 15:17:45 +0100 | [diff] [blame] | 17 | ## Foundation, Inc. |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 18 | ## |
| 19 | |
Patrick Georgi | e47477e | 2014-05-17 18:38:10 +0200 | [diff] [blame] | 20 | # ccache integration |
| 21 | ifeq ($(CONFIG_CCACHE),y) |
| 22 | |
| 23 | CCACHE:=$(word 1,$(wildcard $(addsuffix /ccache,$(subst :, ,$(PATH))))) |
| 24 | ifeq ($(CCACHE),) |
| 25 | $(error ccache selected, but not found in PATH) |
| 26 | endif |
| 27 | |
| 28 | export CCACHE_COMPILERCHECK=content |
| 29 | export CCACHE_BASEDIR=$(top) |
| 30 | |
| 31 | $(foreach arch,$(ARCH_SUPPORTED), \ |
| 32 | $(eval CC_$(arch):=$(CCACHE) $(CC_$(arch)))) |
| 33 | |
| 34 | HOSTCC:=$(CCACHE) $(HOSTCC) |
| 35 | HOSTCXX:=$(CCACHE) $(HOSTCXX) |
| 36 | ROMCC=$(CCACHE) $(ROMCC_BIN) |
| 37 | endif |
Patrick Georgi | fadbe5f | 2014-05-17 18:26:38 +0200 | [diff] [blame] | 38 | |
| 39 | # scan-build integration |
| 40 | ifneq ($(CCC_ANALYZER_OUTPUT_FORMAT),) |
| 41 | |
| 42 | ifeq ($(CCC_ANALYZER_ANALYSIS),) |
| 43 | export CCC_ANALYZER_ANALYSIS := -analyzer-opt-analyze-headers |
| 44 | endif |
| 45 | |
| 46 | $(foreach arch,$(ARCH_SUPPORTED), \ |
Patrick Georgi | e47477e | 2014-05-17 18:38:10 +0200 | [diff] [blame] | 47 | $(eval CC_$(arch):=CCC_CC="$(CC_$(arch))" $(CC) )) |
Patrick Georgi | fadbe5f | 2014-05-17 18:26:38 +0200 | [diff] [blame] | 48 | |
| 49 | HOSTCC:=CCC_CC="$(HOSTCC)" $(CC) |
| 50 | HOSTCXX:=CCC_CXX="$(HOSTCXX)" $(CXX) |
| 51 | ROMCC=CCC_CC="$(ROMCC_BIN)" $(CC) |
| 52 | endif |
| 53 | |
Patrick Georgi | 27ef602 | 2015-04-30 14:25:14 +0200 | [diff] [blame] | 54 | COREBOOT_STANDARD_STAGES := bootblock libverstage verstage romstage ramstage |
| 55 | MAP-libverstage := verstage |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 56 | |
Patrick Georgi | 8688def | 2015-03-28 16:27:42 +0100 | [diff] [blame] | 57 | ARCHDIR-i386 := x86 |
| 58 | ARCHDIR-x86_32 := x86 |
Stefan Reinauer | 4659113 | 2015-03-15 04:19:58 +0100 | [diff] [blame] | 59 | ARCHDIR-x86_64 := x86 |
Patrick Georgi | 8688def | 2015-03-28 16:27:42 +0100 | [diff] [blame] | 60 | ARCHDIR-arm := arm |
| 61 | ARCHDIR-arm64 := arm64 |
| 62 | ARCHDIR-riscv := riscv |
| 63 | ARCHDIR-mips := mips |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 64 | |
Stefan Reinauer | 2941b28 | 2015-07-07 23:37:11 +0200 | [diff] [blame] | 65 | CFLAGS_arm += -ffunction-sections -fdata-sections |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 66 | |
Furquan Shaikh | 5668e26 | 2015-07-14 12:03:11 -0700 | [diff] [blame] | 67 | CFLAGS_arm64 += -ffunction-sections -fdata-sections -mgeneral-regs-only |
Furquan Shaikh | 2af76f4 | 2014-04-28 16:39:40 -0700 | [diff] [blame] | 68 | |
Stefan Reinauer | 2941b28 | 2015-07-07 23:37:11 +0200 | [diff] [blame] | 69 | CFLAGS_mips += -mips32r2 -G 0 -ffunction-sections -fdata-sections |
Patrick Georgi | 8688def | 2015-03-28 16:27:42 +0100 | [diff] [blame] | 70 | CFLAGS_mips += -mno-abicalls -fno-pic |
Paul Burton | 6529c33 | 2014-05-27 15:18:42 +0100 | [diff] [blame] | 71 | |
Gerd Hoffmann | dc27ca9 | 2015-03-26 17:38:03 +0100 | [diff] [blame] | 72 | CFLAGS_x86_32 += -ffunction-sections -fdata-sections |
Stefan Reinauer | 2941b28 | 2015-07-07 23:37:11 +0200 | [diff] [blame] | 73 | CFLAGS_riscv += -ffunction-sections -fdata-sections |
Aaron Durbin | f69a99d | 2015-03-10 11:45:25 -0500 | [diff] [blame] | 74 | |
Patrick Georgi | 6682109 | 2015-07-08 18:12:49 +0200 | [diff] [blame] | 75 | CFLAGS_x86_64 += -mcmodel=large -mno-red-zone |
Stefan Reinauer | 4659113 | 2015-03-15 04:19:58 +0100 | [diff] [blame] | 76 | |
Julius Werner | 8d8799a | 2014-12-19 16:11:14 -0800 | [diff] [blame] | 77 | # Some boards only provide 2K stacks, so storing lots of data there leads to |
| 78 | # problems. Since C rules don't allow us to statically determine the maximum |
| 79 | # stack use, we use 1.5K as heuristic, assuming that we typically have lots |
| 80 | # of tiny stack frames and the odd large one. |
| 81 | # |
| 82 | # Store larger buffers in BSS, use MAYBE_STATIC to share code with __PRE_RAM__ |
| 83 | # on x86. |
| 84 | # Since GCCs detection of dynamic array bounds unfortunately seems to be |
| 85 | # very basic, you'll sometimes have to use a static upper bound for the |
| 86 | # size and an assert() to make sure it's honored (see gpio_base3_value() |
| 87 | # for an example). |
| 88 | # (If you absolutely need a larger stack frame and are 100% sure it cannot |
| 89 | # cause problems, you can whitelist it with #pragma diagnostic.) |
| 90 | CFLAGS_arm += -Wstack-usage=1536 |
| 91 | CFLAGS_arm64 += -Wstack-usage=1536 |
| 92 | CFLAGS_mips += -Wstack-usage=1536 |
| 93 | CFLAGS_riscv += -Wstack-usage=1536 |
| 94 | |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 95 | toolchain_to_dir = \ |
| 96 | $(foreach arch,$(ARCH_SUPPORTED),\ |
Patrick Georgi | b145b83 | 2014-05-17 15:08:47 +0200 | [diff] [blame] | 97 | $(eval CPPFLAGS_$(arch) += \ |
Patrick Georgi | 4ebd3d9 | 2014-05-17 14:02:08 +0200 | [diff] [blame] | 98 | -Isrc/arch/$(ARCHDIR-$(arch))/include)) |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 99 | |
| 100 | # set_stage_toolchain: Decides the toolchain to be used by every stage |
| 101 | # E.g.: If bootblock is x86_32, it sets ARCH-BOOTBLOCK-y = x86_32, whereas |
| 102 | # ARCH-BOOTBLOCK-n = armv7. Then, ARCH-BOOTBLOCK-y can be used anywhere to |
| 103 | # decide the compiler toolchain for bootblock stage |
| 104 | # This step is essential for initializing the toolchain for coreboot standard |
| 105 | # stages i.e. bootblock, romstage and ramstage, since it acts as the second |
| 106 | # parameter to create_class_compiler below in init_standard_toolchain |
Patrick Georgi | 27ef602 | 2015-04-30 14:25:14 +0200 | [diff] [blame] | 107 | map_stage = $(strip $(if $(MAP-$(1)),$(MAP-$(1)),$(1))) |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 108 | set_stage_toolchain= \ |
Patrick Georgi | 27ef602 | 2015-04-30 14:25:14 +0200 | [diff] [blame] | 109 | $(foreach arch,$(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] | 110 | |
| 111 | # create_class_compiler: Used to create compiler tool set for |
| 112 | # special classes |
| 113 | # @1: special class |
| 114 | # @2: compiler set to be used |
| 115 | # e.g.: smm special class uses i386 as compiler set |
| 116 | define create_class_compiler |
Marc Jones | d1f840b | 2015-01-22 16:18:49 +0800 | [diff] [blame] | 117 | $(if $(2),,$(error building $(1) without the required toolchain)) |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 118 | CC_$(1) := $(CC_$(2)) |
| 119 | LD_$(1) := $(LD_$(2)) |
| 120 | NM_$(1) := $(NM_$(2)) |
Daisuke Nojiri | 9b1cb58 | 2014-06-19 19:01:34 -0700 | [diff] [blame] | 121 | AR_$(1) := $(AR_$(2)) |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 122 | OBJCOPY_$(1) := $(OBJCOPY_$(2)) |
| 123 | OBJDUMP_$(1) := $(OBJDUMP_$(2)) |
| 124 | STRIP_$(1) := $(STRIP_$(2)) |
| 125 | READELF_$(1) := $(READELF_$(2)) |
Marc Jones | a38ccfd | 2014-11-06 15:50:22 -0700 | [diff] [blame] | 126 | CFLAGS_$(1) = $$(CFLAGS_common) $$(CFLAGS_$(2)) |
| 127 | CPPFLAGS_$(1) = $$(CPPFLAGS_common) $$(CPPFLAGS_$(2)) |
Patrick Georgi | 527f392 | 2015-06-04 13:31:38 +0200 | [diff] [blame] | 128 | COMPILER_RT_$(1) := $$(COMPILER_RT_$(2)) |
| 129 | COMPILER_RT_FLAGS_$(1) := $$(COMPILER_RT_FLAGS_$(2)) |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 130 | endef |
| 131 | |
Furquan Shaikh | 133096b | 2014-07-31 09:28:55 -0700 | [diff] [blame] | 132 | # define_class: Allows defining any program as dynamic class and compiler tool |
| 133 | # set for the same based on the architecture for which the program is to be |
| 134 | # compiled |
| 135 | # @1: program (class name) |
| 136 | # @2: architecture for which the program needs to be compiled |
| 137 | # IMP: Ensure that define_class is called before any .c or .S files are added to |
| 138 | # the class of the program. Check subdirs-y for order of subdirectory inclusions |
| 139 | define define_class |
| 140 | classes-y += $(1) |
| 141 | $(eval $(call create_class_compiler,$(1),$(2))) |
| 142 | endef |
| 143 | |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 144 | # initialize standard toolchain (CC,AS and others) for give stage |
| 145 | # @1 : stage for which the toolchain is to be initialized |
| 146 | init_standard_toolchain = \ |
Patrick Georgi | 4ebd3d9 | 2014-05-17 14:02:08 +0200 | [diff] [blame] | 147 | $(eval $(call set_stage_toolchain,$(1))) \ |
Patrick Georgi | 262f31c | 2014-05-17 15:13:40 +0200 | [diff] [blame] | 148 | $(eval $(call create_class_compiler,$(1),$(ARCH-$(1)-y))) |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 149 | |
| 150 | init_stages = \ |
| 151 | $(foreach stage,$(COREBOOT_STANDARD_STAGES),$(eval $(call init_standard_toolchain,$(stage)))) |
| 152 | |
Furquan Shaikh | 99ac98f | 2014-04-23 10:18:48 -0700 | [diff] [blame] | 153 | $(eval $(call toolchain_to_dir)) |
| 154 | |
| 155 | $(call init_stages) |
Patrick Georgi | 1053f65 | 2015-03-26 21:39:12 +0100 | [diff] [blame] | 156 | |
| 157 | # Test for coreboot toolchain (except when explicitely not requested) |
| 158 | ifneq ($(NOCOMPILE),1) |
| 159 | # only run if we're doing a build (not for tests, kconfig, ...), using gcc |
| 160 | # rationale: gcc versions by Linux distributions tend to be quite messed up |
| 161 | COMPILERFAIL:=0 |
| 162 | ifeq ($(CONFIG_COMPILER_GCC),y) |
| 163 | ifneq ($(CONFIG_ANY_TOOLCHAIN),y) |
| 164 | $(foreach arch,$(sort $(foreach stage,$(COREBOOT_STANDARD_STAGES),$(ARCH-$(stage)-y))), \ |
| 165 | $(if $(shell $(CC_$(arch)) -v 2>&1 |grep -q "gcc version .*coreboot toolchain" || echo not-coreboot), \ |
| 166 | $(eval COMPILERFAIL:=1)$(warning Please use the coreboot toolchain for '$(arch)' (or prove that your toolchain works)))) |
| 167 | endif |
| 168 | endif |
| 169 | endif |
| 170 | ifeq ($(COMPILERFAIL),1) |
| 171 | $(error consider building our compilers: make crossgcc) |
| 172 | endif |