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heads/modules/musl

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Build time configuration for startup scripts and modules. This addresses multiple issues: * Issue #63: initrd is build fresh each time, so tracked files do not matter. * Issue #144: build time configuration * Issue #123: allows us to customize the startup experience * Issue #122: manual start-xen will go away * Issue #25: tpmtotp PCRs are updated after reading the secret * Issue #16: insmod now meaures modules
2017-03-31 15:18:46 +00:00
modules-y += musl
Build initrd tools with musl-libc (issue #77). This adds compilations modules for musl-libc and kernel-headers. The entire initrd (busybox, cryptsetup, gpgv, kexec, etc) can be built with the much smaller libc and it appears to work with chroot. Library paths are not set correctly and files are installed into heads/install to make them accessible to other modules. This prevents the initrd from working without manual fixup; need to fix before merging into master. Build times have gone up since everything is being rebuilt more often for some reason.
2016-12-29 23:23:08 +00:00
musl_version := 1.1.15
musl_dir := musl-$(musl_version)
musl_tar := musl-$(musl_version).tar.gz
musl_url := https://www.musl-libc.org/releases/$(musl_tar)
musl_hash := 97e447c7ee2a7f613186ec54a93054fe15469fe34d7d323080f7ef38f5ecb0fa
use relative outputs for musl-gcc and cross-gcc, clean up coreboot.rom (issue #62)
2017-03-20 21:52:54 +00:00
musl_output := ../../install/bin/musl-gcc
Build initrd tools with musl-libc (issue #77). This adds compilations modules for musl-libc and kernel-headers. The entire initrd (busybox, cryptsetup, gpgv, kexec, etc) can be built with the much smaller libc and it appears to work with chroot. Library paths are not set correctly and files are installed into heads/install to make them accessible to other modules. This prevents the initrd from working without manual fixup; need to fix before merging into master. Build times have gone up since everything is being rebuilt more often for some reason.
2016-12-29 23:23:08 +00:00
musl-libc patches to build a successfull qemu image
2017-01-04 15:31:27 +00:00
#
Working build with musl-libc cross compiler (issue #77). Pass in the --host argument to all of the various programs that need to treat the configure scripts as cross compilation targets. This removes all dependencies on the host libc (issue #7) and adds some tools to the initrd (cryptsetup #46).
2017-01-04 21:39:10 +00:00
# Note that for syslibdir to be /lib the install will fail.
# this is unfortunate since it prevents the binaries from running
# and requires that we treat the rest of the build as a cross compile.
musl-libc patches to build a successfull qemu image
2017-01-04 15:31:27 +00:00
#
Working build with musl-libc cross compiler (issue #77). Pass in the --host argument to all of the various programs that need to treat the configure scripts as cross compilation targets. This removes all dependencies on the host libc (issue #7) and adds some tools to the initrd (cryptsetup #46).
2017-01-04 21:39:10 +00:00
# That works, with some hacks...
musl-libc patches to build a successfull qemu image
2017-01-04 15:31:27 +00:00
#
Build initrd tools with musl-libc (issue #77). This adds compilations modules for musl-libc and kernel-headers. The entire initrd (busybox, cryptsetup, gpgv, kexec, etc) can be built with the much smaller libc and it appears to work with chroot. Library paths are not set correctly and files are installed into heads/install to make them accessible to other modules. This prevents the initrd from working without manual fixup; need to fix before merging into master. Build times have gone up since everything is being rebuilt more often for some reason.
2016-12-29 23:23:08 +00:00
musl_configure := ./configure \
Define $(CROSS_TOOLS) to ensure reproducible builds (issue #173) Each of the submodule configuration files defined a subset of the cross compiler tools that it used and many were picking up the system `ar`, `nm`, `strip, `ld`, etc. They all now use a `Makefile` macro that defines the path to the proper cross compiler tools. For ones that need the tools, but not the musl-libc gcc, there is $(CROSS_TOOLS_NOCC) that is all of them without gcc. This is for musl-libc itself, as well as xen and the Linux kernel.
2017-04-08 17:23:34 +00:00
$(CROSS_TOOLS_NOCC) \
use cross compiler ar (issue #166)
2017-04-07 15:28:36 +00:00
CC="$(CROSS)gcc" \
Build initrd tools with musl-libc (issue #77). This adds compilations modules for musl-libc and kernel-headers. The entire initrd (busybox, cryptsetup, gpgv, kexec, etc) can be built with the much smaller libc and it appears to work with chroot. Library paths are not set correctly and files are installed into heads/install to make them accessible to other modules. This prevents the initrd from working without manual fixup; need to fix before merging into master. Build times have gone up since everything is being rebuilt more often for some reason.
2016-12-29 23:23:08 +00:00
--prefix="$(INSTALL)" \
musl-libc patches to build a successfull qemu image
2017-01-04 15:31:27 +00:00
--syslibdir="/lib" \
bootstrap the musl-libc gcc cross compiler and use it to build everything except coreboot
2017-01-27 22:55:44 +00:00
--enable-gcc-wrapper \
--enable-shared \
use cross compiler ar (issue #166)
2017-04-07 15:28:36 +00:00
musl_target := \
$(MAKE_JOBS) \
Define $(CROSS_TOOLS) to ensure reproducible builds (issue #173) Each of the submodule configuration files defined a subset of the cross compiler tools that it used and many were picking up the system `ar`, `nm`, `strip, `ld`, etc. They all now use a `Makefile` macro that defines the path to the proper cross compiler tools. For ones that need the tools, but not the musl-libc gcc, there is $(CROSS_TOOLS_NOCC) that is all of them without gcc. This is for musl-libc itself, as well as xen and the Linux kernel.
2017-04-08 17:23:34 +00:00
$(CROSS_TOOLS_NOCC) \
CC="$(CROSS)gcc" \
use cross compiler ar (issue #166)
2017-04-07 15:28:36 +00:00
install \
bootstrap the musl-libc gcc cross compiler and use it to build everything except coreboot
2017-01-27 22:55:44 +00:00
Remove populate-lib, rework libraries and kernel module installation. The populate-lib program was buggy on some systems and could accidentally introduce unwanted libraries into the initrd. The Makefile now uses the modules' $(module_libraries) variable to select which libraries should be installed into the initrd. Kernel modules are now stripped and installed using a similar system.
2017-03-29 19:15:03 +00:00
musl_libraries := \
lib/libc.so \
bootstrap the musl-libc gcc cross compiler and use it to build everything except coreboot
2017-01-27 22:55:44 +00:00
Build initrd tools with musl-libc (issue #77). This adds compilations modules for musl-libc and kernel-headers. The entire initrd (busybox, cryptsetup, gpgv, kexec, etc) can be built with the much smaller libc and it appears to work with chroot. Library paths are not set correctly and files are installed into heads/install to make them accessible to other modules. This prevents the initrd from working without manual fixup; need to fix before merging into master. Build times have gone up since everything is being rebuilt more often for some reason.
2016-12-29 23:23:08 +00:00
Use kernel headers from our Linux kernel tree (issue #188)
2017-04-16 18:18:46 +00:00
musl_depends := musl-cross
# Fake a target so that musl will force a header install by the
# Linux kernel sources.
musl.intermediate: $(INSTALL)/include/linux/limits.h
$(INSTALL)/include/linux/limits.h: $(build)/$(linux_dir)/.canary
$(MAKE) \
-C "$(build)/$(linux_dir)" \
INSTALL_HDR_PATH="$(INSTALL)" \
headers_install
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