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139 lines
5.2 KiB
139 lines
5.2 KiB
#=========================================================================
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# Toplevel configure.ac for the Modular C++ Build System
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#=========================================================================
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# Please read the documenation in 'mcppbs-doc.txt' for more details on
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# how the Modular C++ Build System works. For most new projects, a
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# developer will only need to make the following changes:
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#
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# - change the project metadata listed right below
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# - update the list of subprojects via the 'MCPPBS_SUBPROJECTS' macro
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# - possibly add subproject groups if needed to ease configuration
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# - add more configure checks for platform specific configuration
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#
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#-------------------------------------------------------------------------
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# Project metadata
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#-------------------------------------------------------------------------
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m4_define( proj_name, [RISC-V Proxy Kernel])
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m4_define( proj_maintainer, [Andrew Waterman])
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m4_define( proj_abbreviation, [riscv-pk])
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#-------------------------------------------------------------------------
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# Project version information
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#-------------------------------------------------------------------------
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# Version information is meant to be managed through a version control
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# system's tags and revision numbers. In a working copy the version will
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# not be defined here (you should just use the version control system's
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# mechanisms). When we make a distribution then we can set the version
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# here as formed by the scripts/vcs-version.sh script so that the
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# distribution knows what version it came from. If you are not using
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# version control then it is fine to set this directly.
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m4_define( proj_version, [?])
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#-------------------------------------------------------------------------
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# Setup
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#-------------------------------------------------------------------------
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AC_INIT(proj_name,proj_version,proj_maintainer,proj_abbreviation)
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AC_CONFIG_SRCDIR([pk/pk.h])
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AC_CONFIG_AUX_DIR([scripts])
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AC_CANONICAL_BUILD
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AC_CANONICAL_HOST
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#-------------------------------------------------------------------------
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# Checks for programs
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#-------------------------------------------------------------------------
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AC_PROG_CC
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AC_PROG_CXX
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AC_CHECK_TOOL([AR],[ar])
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AC_CHECK_TOOL([RANLIB],[ranlib])
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AC_CHECK_TOOL([READELF],[readelf])
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AC_CHECK_TOOL([OBJCOPY],[objcopy])
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#-------------------------------------------------------------------------
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# MCPPBS specific program checks
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#-------------------------------------------------------------------------
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# These macros check to see if we can do a stow-based install and also
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# check for an isa simulator suitable for running the unit test programs
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# via the makefile.
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MCPPBS_PROG_INSTALL
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#-------------------------------------------------------------------------
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# Checks for header files
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#-------------------------------------------------------------------------
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AC_HEADER_STDC
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#-------------------------------------------------------------------------
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# Register RISCV environment variable
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#-------------------------------------------------------------------------
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AC_ARG_VAR(RISCV, [top-level RISC-V install directory])
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#-------------------------------------------------------------------------
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# Set compiler flags
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#-------------------------------------------------------------------------
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default_CFLAGS="-Wall -Werror -D__NO_INLINE__ -mcmodel=medany -O2 -std=gnu99 -Wno-unused -Wno-attributes -fno-delete-null-pointer-checks"
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AC_ARG_ENABLE([32bit],
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AS_HELP_STRING([--enable-32bit], [Build a 32-bit pk]),
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BUILD_32BIT=$enableval,
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BUILD_32BIT=no)
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case "${BUILD_32BIT}" in
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yes|default)
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echo "Building 32-bit pk"
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CFLAGS="$default_CFLAGS -march=rv32iac -mabi=ilp32"
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LDFLAGS="-march=rv32iac -mabi=ilp32"
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install_subdir="riscv32-unknown-elf"
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;;
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*)
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CFLAGS="$default_CFLAGS"
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LDFLAGS=
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install_subdir="riscv64-unknown-elf"
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;;
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esac
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AC_ARG_ENABLE([print-device-tree], AS_HELP_STRING([--enable-print-device-tree], [Print DTS when booting]))
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AS_IF([test "x$enable_print_device_tree" == "xyes"], [
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AC_DEFINE([PK_PRINT_DEVICE_TREE],,[Define if the DTS is to be displayed])
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])
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AC_SUBST(CFLAGS)
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AC_SUBST(LDFLAGS)
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AC_SUBST([LIBS], ["-lgcc"])
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AC_SUBST(install_subdir)
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#-------------------------------------------------------------------------
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# MCPPBS subproject list
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#-------------------------------------------------------------------------
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# Order list so that subprojects only depend on those listed earlier.
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# The '*' suffix indicates an optional subproject. The '**' suffix
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# indicates an optional subproject which is also the name of a group.
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MCPPBS_SUBPROJECTS([ pk, bbl, dummy_payload, machine, util ])
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#-------------------------------------------------------------------------
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# MCPPBS subproject groups
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#-------------------------------------------------------------------------
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# If a group has the same name as a subproject then you must add the
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# '**' suffix in the subproject list above. The list of subprojects in a
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# group should be ordered so that subprojets only depend on those listed
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# earlier. Here is an example:
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#
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# MCPPBS_GROUP( [group-name], [sproja,sprojb,...] )
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#
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#-------------------------------------------------------------------------
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# Output
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#-------------------------------------------------------------------------
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AC_CONFIG_HEADERS([config.h])
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AC_CONFIG_FILES([Makefile])
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AC_OUTPUT
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