#
# Copyright (c) 2013, 2026, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# This code is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 only, as
# published by the Free Software Foundation.  Oracle designates this
# particular file as subject to the "Classpath" exception as provided
# by Oracle in the LICENSE file that accompanied this code.
#
# This code is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
# version 2 for more details (a copy is included in the LICENSE file that
# accompanied this code).
#
# You should have received a copy of the GNU General Public License version
# 2 along with this work; if not, write to the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
# or visit www.oracle.com if you need additional information or have any
# questions.
#

ARCH := $(word 1,$(subst -, ,$(TARGET)))

ifeq ($(TARGET), arm-linux-gnueabihf)
  ARCH=armhfp
endif

$(info ARCH=$(ARCH))

ifeq ($(PREFIX),)
  $(error PREFIX not set)
endif

BUILDDIR := $(OUTPUT_ROOT)/$(HOST)/$(TARGET)
TARGETDIR := $(PREFIX)/$(TARGET)
SYSROOT := $(TARGETDIR)/sysroot

# Base OS information and repositories
#
# BASE_OS_REPOS is a space-separated set of repositories. Each entry
# is of the format <repo_name>,<url> where <repo_name> is a unique
# identifier across the set of repositories.

ifeq ($(BASE_OS), OL)
  ifeq ($(filter aarch64 x86_64, $(ARCH)), )
    $(error Only "aarch64 x86_64" architectures are supported for OL, but "$(ARCH)" was requested)
  endif
  BASE_OS_VERSION ?= 7
  ifeq ($(BASE_OS_VERSION), 6)
    ifeq ($(filter x86_64, $(ARCH)), )
      $(error Only "x86_64" architectures are supported for OL6, but "$(ARCH)" was requested)
    endif
    BASE_OS_DESCRIPTION_VERSION := 6.4
    REPO_BASE_URL := https://yum.oracle.com/repo/OracleLinux/OL6/4
    BASE_OS_REPOS := base,$(REPO_BASE_URL)/base/$(ARCH)
  else ifeq ($(BASE_OS_VERSION), 7)
    BASE_OS_DESCRIPTION_VERSION := 7.6
    REPO_BASE_URL := https://yum.oracle.com/repo/OracleLinux/OL7/6
    BASE_OS_REPOS := base,$(REPO_BASE_URL)/base/$(ARCH)
  else
    REPO_BASE_URL := https://yum.oracle.com/repo/OracleLinux/OL$(BASE_OS_VERSION)
    BASE_OS_REPOS := baseos,$(REPO_BASE_URL)/baseos/latest/$(ARCH) appstream,$(REPO_BASE_URL)/appstream/$(ARCH)
    BASE_OS_DESCRIPTION_VERSION := $(BASE_OS_VERSION)
  endif
  BASE_OS_DESCRIPTION := OL$(BASE_OS_DESCRIPTION_VERSION)
else ifeq ($(BASE_OS), Fedora)
  ifeq ($(filter aarch64 armhfp ppc64le riscv64 s390x x86_64, $(ARCH)), )
    $(error Only "aarch64 armhfp ppc64le riscv64 s390x x86_64" architectures are supported for Fedora, but "$(ARCH)" was requested)
  endif
  ifeq ($(ARCH), riscv64)
    BASE_OS_VERSION ?= 43
    BASE_OS_BUILD := 6640
    REPO_BASE_URL := https://riscv-koji.fedoraproject.org/repos-dist/f$(BASE_OS_VERSION)/$(BASE_OS_BUILD)/riscv64
    BASE_OS_REPOS := riscv64,$(REPO_BASE_URL)
  else
    ifeq ($(ARCH), armhfp)
      BASE_OS_VERSION ?= 36
    else
      BASE_OS_VERSION ?= 41
    endif
    ifeq ($(ARCH), armhfp)
      ifneq ($(BASE_OS_VERSION), 36)
        $(error Fedora 36 is the last release supporting "armhfp", but $(BASE_OS_VERSION) was requested)
      endif
    endif
    LATEST_ARCHIVED_OS_VERSION := 41
    ifeq ($(filter aarch64 x86_64 armhfp, $(ARCH)), )
      FEDORA_TYPE := fedora-secondary
    else
      FEDORA_TYPE := fedora/linux
    endif
    NOT_ARCHIVED := $(shell [ $(BASE_OS_VERSION) -gt $(LATEST_ARCHIVED_OS_VERSION) ] && echo true)
    ifeq ($(NOT_ARCHIVED),true)
      RPM_REPO_URL := https://dl.fedoraproject.org/pub/$(FEDORA_TYPE)/releases/$(BASE_OS_VERSION)/Everything/$(ARCH)/os
    else
      RPM_REPO_URL := https://archives.fedoraproject.org/pub/archive/$(FEDORA_TYPE)/releases/$(BASE_OS_VERSION)/Everything/$(ARCH)/os
    endif
    BASE_OS_REPOS := os,$(RPM_REPO_URL)
  endif
  BASE_OS_DESCRIPTION := Fedora_$(BASE_OS_VERSION)
else
  $(error Unknown base OS $(BASE_OS))
endif