| Message ID | 20211223164430.866399-1-hjl.tools@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | build-many-glibcs.py: Add ISL (0.24) support | expand |
What's the motiviation for this? I thought ISL is optional? Thanks, Florian
On Thu, Dec 23, 2021 at 10:40 AM Florian Weimer <fweimer@redhat.com> wrote: > > What's the motiviation for this? I thought ISL is optional? > > Thanks, > Florian > The motivation is to use build-many-glibcs.py to build Linux cross compiler, which is as close to the native Linux compiler as possible, not just for checking glibc. For building a Linux cross compiler, it is much more convenient than other alternatives.
* H. J. Lu: > On Thu, Dec 23, 2021 at 10:40 AM Florian Weimer <fweimer@redhat.com> wrote: >> >> What's the motiviation for this? I thought ISL is optional? >> >> Thanks, >> Florian >> > > The motivation is to use build-many-glibcs.py to build Linux cross > compiler, which is as close to the native Linux compiler as possible, > not just for checking glibc. For building a Linux cross compiler, it is > much more convenient than other alternatives. Are all distributions using ISL? I thought some do, others don't? Thanks, Florian
On Fri, Dec 24, 2021 at 10:04 AM Florian Weimer <fweimer@redhat.com> wrote: > > * H. J. Lu: > > > On Thu, Dec 23, 2021 at 10:40 AM Florian Weimer <fweimer@redhat.com> wrote: > >> > >> What's the motiviation for this? I thought ISL is optional? > >> > >> Thanks, > >> Florian > >> > > > > The motivation is to use build-many-glibcs.py to build Linux cross > > compiler, which is as close to the native Linux compiler as possible, > > not just for checking glibc. For building a Linux cross compiler, it is > > much more convenient than other alternatives. > > Are all distributions using ISL? I thought some do, others don't? > > I don't know.
On Thu, 23 Dec 2021, H.J. Lu via Libc-alpha wrote: > On Thu, Dec 23, 2021 at 10:40 AM Florian Weimer <fweimer@redhat.com> wrote: > > > > What's the motiviation for this? I thought ISL is optional? > > > > Thanks, > > Florian > > > > The motivation is to use build-many-glibcs.py to build Linux cross > compiler, which is as close to the native Linux compiler as possible, > not just for checking glibc. For building a Linux cross compiler, it is > much more convenient than other alternatives. Are you using build-many-glibcs.py --full-gcc, which is also needed to get something closer to a native system compiler (although the features added with --full-gcc are largely orthogonal to the use of ISL)? There was no apparent interest from Go / Ada / libsanitizer people in actually fixing most of the problems shown up in a build with --full-gcc when I added that option (see the commit message for commit b1176270deffff46db9b39645bff10fe7b8c5fbd, some might have been fixed since then), or in running a bot with that option (which would be awkward because of Ada's requirement to build with same-version native GCC), but it might well still be of use when you just want to build a cross compiler for an architecture where all the libraries do build OK.
diff --git a/scripts/build-many-glibcs.py b/scripts/build-many-glibcs.py index b83bc159fd..2b46044bae 100755 --- a/scripts/build-many-glibcs.py +++ b/scripts/build-many-glibcs.py @@ -535,20 +535,20 @@ class Context(object): self.clear_last_build_state(action) build_time = datetime.datetime.utcnow() if action == 'host-libraries': - build_components = ('gmp', 'mpfr', 'mpc') + build_components = ('gmp', 'mpfr', 'mpc', 'isl') old_components = () old_versions = {} self.build_host_libraries() elif action == 'compilers': build_components = ('binutils', 'gcc', 'glibc', 'linux', 'mig', 'gnumach', 'hurd') - old_components = ('gmp', 'mpfr', 'mpc') + old_components = ('gmp', 'mpfr', 'mpc', 'isl') old_versions = self.build_state['host-libraries']['build-versions'] self.build_compilers(configs) else: build_components = ('glibc',) - old_components = ('gmp', 'mpfr', 'mpc', 'binutils', 'gcc', 'linux', - 'mig', 'gnumach', 'hurd') + old_components = ('gmp', 'mpfr', 'mpc', 'isl', 'binutils', + 'gcc', 'linux', 'mig', 'gnumach', 'hurd') old_versions = self.build_state['compilers']['build-versions'] if action == 'update-syscalls': self.update_syscalls(configs) @@ -697,6 +697,8 @@ class Context(object): self.remove_recreate_dirs(installdir, builddir, logsdir) cmdlist = CommandList('host-libraries', self.keep) self.build_host_library(cmdlist, 'gmp') + self.build_host_library(cmdlist, 'isl', + ['--with-gmp=%s' % installdir]) self.build_host_library(cmdlist, 'mpfr', ['--with-gmp=%s' % installdir]) self.build_host_library(cmdlist, 'mpc', @@ -788,6 +790,7 @@ class Context(object): 'linux': '5.15', 'mpc': '1.2.1', 'mpfr': '4.1.0', + 'isl': '0.24', 'mig': 'vcs-mainline', 'gnumach': 'vcs-mainline', 'hurd': 'vcs-mainline'} @@ -970,6 +973,7 @@ class Context(object): 'linux': 'https://www.kernel.org/pub/linux/kernel/v%(major)s.x/linux-%(version)s.tar.xz', 'mpc': 'https://ftp.gnu.org/gnu/mpc/mpc-%(version)s.tar.gz', 'mpfr': 'https://ftp.gnu.org/gnu/mpfr/mpfr-%(version)s.tar.xz', + 'isl': 'https://libisl.sourceforge.io/isl-%(version)s.tar.xz', 'mig': 'https://ftp.gnu.org/gnu/mig/mig-%(version)s.tar.bz2', 'gnumach': 'https://ftp.gnu.org/gnu/gnumach/gnumach-%(version)s.tar.bz2', 'hurd': 'https://ftp.gnu.org/gnu/hurd/hurd-%(version)s.tar.bz2'} @@ -1092,7 +1096,7 @@ class Context(object): for a in actions: self.clear_last_build_state(a) self.exec_self() - check_components = {'host-libraries': ('gmp', 'mpfr', 'mpc'), + check_components = {'host-libraries': ('gmp', 'mpfr', 'mpc', 'isl'), 'compilers': ('binutils', 'gcc', 'glibc', 'linux', 'mig', 'gnumach', 'hurd'), 'glibcs': ('glibc',)} @@ -1455,7 +1459,8 @@ class Config(object): host_libs = self.ctx.host_libraries_installdir cfg_opts += ['--with-gmp=%s' % host_libs, '--with-mpfr=%s' % host_libs, - '--with-mpc=%s' % host_libs] + '--with-mpc=%s' % host_libs, + '--with-isl=%s' % host_libs] if bootstrap: tool_build = 'gcc-first' # Building a static-only, C-only compiler that is