diff options
Diffstat (limited to 'open_issues')
| -rw-r--r-- | open_issues/llvm.mdwn | 157 | ||||
| -rw-r--r-- | open_issues/mmap_write-only.mdwn | 3 |
2 files changed, 153 insertions, 7 deletions
diff --git a/open_issues/llvm.mdwn b/open_issues/llvm.mdwn index d0b7b91d..39549db1 100644 --- a/open_issues/llvm.mdwn +++ b/open_issues/llvm.mdwn @@ -1,4 +1,4 @@ -[[!meta copyright="Copyright © 2011 Free Software Foundation, Inc."]] +[[!meta copyright="Copyright © 2011, 2012 Free Software Foundation, Inc."]] [[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable id="license" text="Permission is granted to copy, distribute and/or modify this @@ -8,10 +8,155 @@ Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled [[GNU Free Documentation License|/fdl]]."]]"""]] -[[!tag open_issue_llvm open_issue_porting]] +[[!tag open_issue_llvm]] -[LLVM](http://www.llvm.org/) needs a little bit of porting for being usable on -GNU/Hurd. +Here's what's to be done for maintaining [[/LLVM]]. -Apparently this has already been done within Debian; -<http://anonscm.debian.org/viewvc/pkg-llvm/llvm/trunk/debian/patches/>. +Apart from the target-specific configuration machinery, there shouldn't be any +major differences within LLVM between the GNU/Hurd and GNU/Linux ports, for +example. Especially all the compiler magic is all the same. + +[[!toc levels=2]] + + +# [[General information|/llvm]] + + +# [[Sources|source_repositories/llvm]] + + +# Configuration + +<!-- + +For all of llvm, clang, compiler-rt, test-suite: + +git checkout reviewed +git log --reverse --topo-order --pretty=fuller --stat=$COLUMNS,$COLUMNS -w -p -C --cc ..upstream/master +-i +/^commit |^merge:|^---$|hurd|linux|nacl|nptl|glibc|gs: + +--> + +Last reviewed up to the [[Git mirror's sources|source_repositories/llvm]]: llvm +llvmf85ec865f0f803273ab38e3b1a19fe185c7e88ac (2012-12-23), clang +debc018be39668db5cefb6418cd210aa716d6e7a (2012-12-23), compiler-rt +cab6133c5d7478e96882cb54467e29b3716c0d89 (2012-12-23), test-suite +1451ba86fc87d067ed3d244352e4025a8134b0a7 (2012-12-23). + + * Configure fragments that have `*linux*` cases might/should often contain + those for us (and GNU/k*BSD) as well. + + * <http://anonscm.debian.org/viewvc/pkg-llvm/llvm/trunk/debian/patches/>. + + * [low] Some `PATH_MAX`/`MAXPATHLEN` things. + + * Review `gs:` usage in `[llvm]/lib/Target/X86/`, `[llvm]/test/CodeGen/X86/`, + `[llvm]/test/MC/X86/`. +./clang/tschwinge/Hank_Mobley/docs/LanguageExtensions.rst: movl %gs:(%eax), %eax +./clang/tschwinge/Hank_Mobley/test/Sema/asm.c: asm volatile ("movb %%gs:%P2,%b0" : "=q"(b) : "0"(0), "i"(5L)); + + +# Build + +Here's a log of a LLVM build run; this is from our [[Git repository's +sources|source_repositories/llvm]], llvm +llvmf85ec865f0f803273ab38e3b1a19fe185c7e88ac (2012-12-23), clang +debc018be39668db5cefb6418cd210aa716d6e7a (2012-12-23), compiler-rt +cab6133c5d7478e96882cb54467e29b3716c0d89 (2012-12-23), test-suite +1451ba86fc87d067ed3d244352e4025a8134b0a7 (2012-12-23), run on kepler.SCHWINGE +and coulomb.SCHWINGE. + + $ export LC_ALL=C + $ (cd ../Horace_Silver/ && ln -sfn ../../../clang/tschwinge/Hank_Mobley tools/clang) + $ (cd ../Horace_Silver/ && ln -sfn ../../../compiler-rt/tschwinge/Doug_Watkins projects/compiler-rt) + $ (cd ../Horace_Silver/ && ln -sfn ../../../test-suite/tschwinge/Art_Blakey projects/test-suite) + $ ../Horace_Silver/configure --prefix="$PWD".install --enable-optimized SHELL=/bin/dash CC=gcc-4.6 CXX=g++-4.6 2>&1 | tee log_build + $ make VERBOSE=1 2>&1 | tee log_build_ + +Different hosts may default to different shells and compiler versions; thus +harmonized. + +Passing `--enable-debug-symbols`, the GNU/Hurd build terminates with a SIGBUS +when linking `Release+Debug+Asserts/bin/clang` (which is bigger than 500 MiB +for the corresponding GNU/Linux build). + +This takes up around 3 GiB, and needs roughly 1.75 h on kepler.SCHWINGE and +4.25 h on coulomb.SCHWINGE. + +<!-- + + $ (make VERBOSE=1 && touch .go-install) 2>&1 | tee log_build_ && test -f .go-install && (make VERBOSE=1 install && touch .go-test) 2>&1 | tee log_install && test -f .go-test && { make -k VERBOSE=1 LIT_ARGS='-v --threads=1' check-all 2>&1 | tee log_test_check-all; make -k -C projects/test-suite/ 2>&1 | tee log_test_test-suite; } + +--> + + +## Analysis + + $ toolchain/logs/process llvm build + + -checking type of operating system we're going to host on... Linux + -checking type of operating system we're going to target... Linux + +checking type of operating system we're going to host on... GNU + +checking type of operating system we're going to target... GNU + + -checking mach/mach.h usability... no + -checking mach/mach.h presence... no + -checking for mach/mach.h... no + +checking mach/mach.h usability... yes + +checking mach/mach.h presence... yes + +checking for mach/mach.h... yes + + -checking for mmap of files... yes + +checking for mmap of files... no + checking if /dev/zero is needed for mmap... no + +configure: WARNING: mmap() of files required but not found + + [[mmap_write-only]]? TODO + + -checking type of operating system we're going to target... Linux + +checking type of operating system we're going to target... Unknown + + +In file included from [...]/tschwinge/Horace_Silver/lib/Support/Process.cpp:29:0: + +[...]/tschwinge/Horace_Silver/lib/Support/Unix/Process.inc: In function 'unsigned int getColumns(int)': + +[...]/tschwinge/Horace_Silver/lib/Support/Unix/Process.inc:220:21: warning: enumeral and non-enumeral type in conditional expression [enabled b + + include/llvm/Config/* + Makefile.config + +TODO + + +# Install + + $ make VERBOSE=1 install 2>&1 | tee log_install + +This takes up around 350 MiB, and needs roughly 1 min on kepler.SCHWINGE and 12 +min on coulomb.SCHWINGE. + + +## Analysis + + $ toolchain/logs/process llvm install + +TODO + + +# Testsuite + + $ make -k VERBOSE=1 LIT_ARGS='-v --threads=1' check-all 2>&1 | tee log_test_check-all + $ make -k -C projects/test-suite/ 2>&1 | tee log_test_test-suite + +`LIT_ARGS=-v` is default for `VERBOSE=1`, but we want only one worker thread, +for stable order and usable test output log. + +This needs roughly 10 min (`check-all`) + 145 min (test-suite) = 155 min on +kepler.SCHWINGE and 40 min (`check-all`) + 80 min (test-suite) = 120 min on +coulomb.SCHWINGE. + + +## Analysis + + $ toolchain/logs/process llvm test + +TODO diff --git a/open_issues/mmap_write-only.mdwn b/open_issues/mmap_write-only.mdwn index 467274c5..b64e8641 100644 --- a/open_issues/mmap_write-only.mdwn +++ b/open_issues/mmap_write-only.mdwn @@ -8,7 +8,8 @@ Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled [[GNU Free Documentation License|/fdl]]."]]"""]] -[[!tag open_issue_glibc]] +[[!tag open_issue_glibc open_issue_llvm]] + # IRC, freenode, #hurd, 2011-12-14 |