diff options
Diffstat (limited to 'open_issues/llvm.mdwn')
| -rw-r--r-- | open_issues/llvm.mdwn | 210 |
1 files changed, 172 insertions, 38 deletions
diff --git a/open_issues/llvm.mdwn b/open_issues/llvm.mdwn index 3ce42281..56b4513e 100644 --- a/open_issues/llvm.mdwn +++ b/open_issues/llvm.mdwn @@ -23,6 +23,13 @@ example. Especially all the compiler magic is all the same. # [[General information|/llvm]] +## Rebuild of the Debian archive with clang + +From [[!message-id "20120305195308.GA1904@zouish.org"]]: +<http://sylvestre.ledru.info/blog/sylvestre/2012/02/29/rebuild_of_the_debian_archive_with_clang>, +<http://clang.debian.net/>. + + # [[Sources|source_repositories/llvm]] @@ -35,50 +42,74 @@ 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:|^---$|hurd|linux|nacl|nptl|glibc|gs: +/^commit |^merge:|^---$|hurd|gnu|linux|nacl|nptl|glibc|[^e]gs:|/proc --> Last reviewed up to the [[Git mirror's sources|source_repositories/llvm]]: llvm -7bf2e1b9ef797fda5de53956a1d2aea900ce794f (2013-01-09), clang -35eb8c3e12cac22f91d1cd4c74ae092ebc94fc40 (2013-01-09), compiler-rt -b1d1ef27db5b6c7788cda3dfd5deb6037dd4a3b8 (2013-01-09), test-suite -a26cfd0ef760f09e753b76d3e633a6af9ed637f8 (2013-01-08). - - * Configure fragments that have `*linux*` cases might/should often contain - those for us (and GNU/k*BSD) as well. +e68542e67e5c0f8d4bbdae0dde6ccd24525a18e3 (2013-02-13), clang +2cbd427ec533f022f612fed0dd93ef5fa214478a (2013-02-12), compiler-rt +c242446f7a7c6a0c1f1bf9ad403d6dac6f215f1c (2013-02-12), test-suite +f621d1a62904df136cbaf4e4e63cbf9e9c45fd10 (2013-02-08). * <http://anonscm.debian.org/viewvc/pkg-llvm/llvm/trunk/debian/patches/>. - * [low] Some `PATH_MAX`/`MAXPATHLEN` things. + * [low] Some more `PATH_MAX`/`MAXPATHLEN` things. + + * `gs:` usage + + * `lib/Target/X86/`, `test/CodeGen/X86/`, `test/MC/X86/`. + + * `tools/clang/` + + tools/clang/docs/LanguageExtensions.rst: movl %gs:(%eax), %eax + tools/clang/test/Sema/asm.c: asm volatile ("movb %%gs:%P2,%b0" : "=q"(b) : "0"(0), "i"(5L)); + + * `compiler-rt` and `test-suite` not yet examined. + + * [low] Linuxisms + + * `test/`, `unittests`, `tools/clang/test/`, `tools/clang/unittests/` not + yet examined. + + * In clang's `test/Driver/` a lot of testing can be generalized from + *Linux* to *GNU environment*, adding GNU/Hurd testing, too. + + * `compiler-rt` and `test-suite` not yet examined. - * 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)); + * `/proc` usage + + * `compiler-rt` and `test-suite` not yet examined. + + * `libc++` (not currently using) + + Some Hurd-porting work is said to have been done as Google Summer of Code + 2012 Debian project, + <http://wiki.debian.org/SummerOfCode2012/StudentApplications/AndrejBelym>. # Build Here's a log of a LLVM build run; this is from our [[Git repository's sources|source_repositories/llvm]], llvm -792d08f44e4386ea671c1313cad9dfc9fc853794 (2013-01-09), clang -1d2e1d18ae77b1949a31203ed7001b5817f29b09 (2013-01-09), compiler-rt -b1d1ef27db5b6c7788cda3dfd5deb6037dd4a3b8 (2013-01-09), test-suite -a26cfd0ef760f09e753b76d3e633a6af9ed637f8 (2013-01-08), run on kepler.SCHWINGE +829831c561ca75cb81cbe217dee25b52dbe0e2f0 (2013-02-13), clang +6b02a96cdeecb9cc2070a5a5684d62bb32ba40d6 (2013-02-13), compiler-rt +c242446f7a7c6a0c1f1bf9ad403d6dac6f215f1c (2013-02-12), test-suite +f8647dbb30c3ee173c038aff10f815b0ba856793 (2013-02-09), 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 + $ ../Horace_Silver/configure --prefix="$PWD".install --enable-optimized SHELL=/bin/dash CC=gcc-4.7 CXX=g++-4.7 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 +Passing `--enable-debug-symbols`, the GNU/Hurd build on coulomb.SCHWINGE +terminates with a SIGBUS when linking `Release+Debug+Asserts/bin/clang` (which is bigger than 500 MiB for the corresponding GNU/Linux build). Using `--enable-debug-symbols --enable-shared`, the GNU/Hurd build hang after `make[1]: Leaving directory @@ -90,10 +121,17 @@ the corresponding GNU/Linux build). Also there is a separate This takes up around 3 GiB, and needs roughly 1.25 h on kepler.SCHWINGE and 4.25 h on coulomb.SCHWINGE. +Configuring without `--enable-optimized` even crashes mighty darnassus, +probably because of too-big files when linking. Configuring with +`--enable-optimized --enable-expensive-checks --disable-threads +--enable-debug-symbols --enable-debug-runtime` is fine. + <!-- $ (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; } + $ (PATH=$HOME/tmp/source/autoconf/AUTOCONF-2.60.build.install/bin:$HOME/tmp/source/automake/automake-1.9.6.build.install/bin:$HOME/tmp/source/libtool/release-1-5-22.build.install/bin:$PATH; ./AutoRegen.sh) + --> @@ -101,31 +139,20 @@ This takes up around 3 GiB, and needs roughly 1.25 h on kepler.SCHWINGE and $ 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 - Due to [[mmap_write-only]]. + Due to [[mmap_write-only]]. - -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 [...]/lib/Support/Process.cpp:85:0: + +[...]/lib/Support/Unix/Process.inc: In function 'unsigned int getColumns(int)': + +[...]/lib/Support/Unix/Process.inc:227:21: warning: enumeral and non-enumeral type in conditional expression [enabled by default] - +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 + 225 // Try to determine the width of the terminal. + 226 struct winsize ws; + 227 if (ioctl(FileID, TIOCGWINSZ, &ws) == 0) include/llvm/Config/* Makefile.config @@ -165,4 +192,111 @@ coulomb.SCHWINGE. $ toolchain/logs/process llvm test -TODO + * `LLVM :: CodeGen/X86/mult-alt-generic-i686.ll` + + This one, as well as a really large set of test from the test-suite fail on + coulomb.SCHWINGE no matter whether a GNU/Hurd or GNU/Linux system is booted + -- so all these are specific to the Athlon XP processor, hopefully. + + * `Clang :: Index/crash-recovery-modules.m` + + Also fails on GNU/Linux. Tested `--enable-optimized + --enable-expensive-checks --disable-threads --enable-debug-symbols + --enable-debug-runtime`. [[!LLVM_bug 11974]]. + + * `Clang :: Misc/dev-fd-fs.c` + + $ cat < [...]/test/Misc/dev-fd-fs.c | Release+Debug+Asserts+Checks/bin/clang -x c /dev/fd/0 -E + clang: error: no such file or directory: '/dev/fd/0' + clang: error: no input files + + Compare to: + + $ cat < [...]/test/Misc/dev-fd-fs.c | gcc -x c /dev/fd/0 -E + gcc: error: /dev/fd/0: (ipc/mig) bad request message ID + gcc: warning: '-x c' after last input file has no effect + gcc: fatal error: no input files + compilation terminated. + + These work: + + $ Release+Debug+Asserts+Checks/bin/clang -x c /dev/fd/0 -E < [...]/test/Misc/dev-fd-fs.c + [...] + int x; + $ gcc -x c /dev/fd/0 -E < [...]/test/Misc/dev-fd-fs.c + [...] + int x; + + * `Clang :: Tooling/clang-check-builtin-headers.cpp` + + Fails: `fatal error: 'stddef.h' file not found`; succeeds when ran + manually. + + * With `--enable-optimized --enable-expensive-checks --disable-threads + --enable-debug-symbols --enable-debug-runtime`, there are a few new FAILs + for both GNU/Linux and GNU/Hurd: + + * `Clang :: Tooling/auto-detect-from-source-parent-of-cwd.cpp` + + * `Clang :: Tooling/auto-detect-from-source-parent.cpp` + + * `Clang :: Tooling/clang-check-autodetect-dir.cpp` + + For all three, the `clang-check` invocation fails. [[!LLVM_bug 15194]]. + + * Several tests are not considered on GNU/Hurd. + + -PASS: Clang-Unit :: ASTMatchers/[...]/tschwinge/Horace_Silver.build/tools/clang/unittests/ASTMatchers/Release+Asserts/ASTMatchersTests/HasNameDeathTest.DiesOnEmptyName + -PASS: Clang-Unit :: ASTMatchers/[...]/tschwinge/Horace_Silver.build/tools/clang/unittests/ASTMatchers/Release+Asserts/ASTMatchersTests/HasNameDeathTest.DiesOnEmptyPattern + -PASS: Clang-Unit :: ASTMatchers/[...]/tschwinge/Horace_Silver.build/tools/clang/unittests/ASTMatchers/Release+Asserts/ASTMatchersTests/IsDerivedFromDeathTest.DiesOnEmptyBaseName + -PASS: LLVM-Unit :: ADT/[...]/tschwinge/Horace_Silver.build/unittests/ADT/Release+Asserts/ADTTests/APFloatTest.SemanticsDeath + -PASS: LLVM-Unit :: ADT/[...]/tschwinge/Horace_Silver.build/unittests/ADT/Release+Asserts/ADTTests/APFloatTest.StringDecimalDeath + -PASS: LLVM-Unit :: ADT/[...]/tschwinge/Horace_Silver.build/unittests/ADT/Release+Asserts/ADTTests/APFloatTest.StringDecimalExponentDeath + -PASS: LLVM-Unit :: ADT/[...]/tschwinge/Horace_Silver.build/unittests/ADT/Release+Asserts/ADTTests/APFloatTest.StringDecimalSignificandDeath + -PASS: LLVM-Unit :: ADT/[...]/tschwinge/Horace_Silver.build/unittests/ADT/Release+Asserts/ADTTests/APFloatTest.StringHexadecimalDeath + -PASS: LLVM-Unit :: ADT/[...]/tschwinge/Horace_Silver.build/unittests/ADT/Release+Asserts/ADTTests/APFloatTest.StringHexadecimalExponentDeath + -PASS: LLVM-Unit :: ADT/[...]/tschwinge/Horace_Silver.build/unittests/ADT/Release+Asserts/ADTTests/APFloatTest.StringHexadecimalSignificandDeath + -PASS: LLVM-Unit :: ADT/[...]/tschwinge/Horace_Silver.build/unittests/ADT/Release+Asserts/ADTTests/APIntTest.StringDeath + -PASS: LLVM-Unit :: Support/[...]/tschwinge/Horace_Silver.build/unittests/Support/Release+Asserts/SupportTests/LeakDetector.Death1 + -PASS: LLVM-Unit :: Support/[...]/tschwinge/Horace_Silver.build/unittests/Support/Release+Asserts/SupportTests/ValueHandle.AssertingVH_Asserts + + GTEST_HAS_DEATH_TEST utils/unittest/googletest/include/gtest/internal/gtest-port.h + + -PASS: LLVM-Unit :: ADT/[...]/tschwinge/Horace_Silver.build/unittests/ADT/Release+Asserts/ADTTests/PackedVectorTest.SignedValues + -PASS: LLVM-Unit :: ADT/[...]/tschwinge/Horace_Silver.build/unittests/ADT/Release+Asserts/ADTTests/PackedVectorTest.UnsignedValues + + EXPECT_DEBUG_DEATH utils/unittest/googletest/include/gtest/gtest-death-test.h + + * Differences in test-suite, that are not evidently floating-point issues, + GNU/Linux vs. GNU/Hurd on coulomb.SCHWINGE: + + gcc-4.6 -I/media/erich/home/thomas/tmp/llvm/tschwinge/Horace_Silver.build/projects/test-suite/SingleSource/UnitTests -I/media/erich/home/thomas/tmp/llvm/test-suite/tschwinge/Art_Blakey/SingleSource/UnitTests -I/home/thomas/tmp/llvm/tschwinge/Horace_Silver.build/projects/test-suite/../../../Horace_Silver/projects/test-suite/include -I../../include -I/home/thomas/tmp/llvm/tschwinge/Horace_Silver.build/include -I/home/thomas/tmp/llvm/tschwinge/Horace_Silver/include -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -DNDEBUG -O3 /media/erich/home/thomas/tmp/llvm/test-suite/tschwinge/Art_Blakey/SingleSource/UnitTests/2007-04-25-weak.c -lm -o Output/2007-04-25-weak.native -lstdc++ + +/media/erich/home/thomas/tmp/llvm/test-suite/tschwinge/Art_Blakey/SingleSource/UnitTests/2007-04-25-weak.c:3:1: warning: 'weak_import' attribute directive ignored [-Wattributes] + +/tmp/ccWGwKvo.o: In function `main': + +2007-04-25-weak.c:(.text.startup+0x7): undefined reference to `test_weak' + +collect2: ld returned 1 exit status + +make[2]: [Output/2007-04-25-weak.native] Error 1 (ignored) + + On GNU/Linux, the clamav tests are compiled with `-DC_LINUX`. + + +/media/erich/home/thomas/tmp/llvm/test-suite/tschwinge/Art_Blakey/MultiSource/Applications/lambda-0.1.3/lambda.cc:63:12: error: use of undeclared identifier 'MAXPATHLEN' + + char buf[MAXPATHLEN+1]; + + ..., with follow-up failures. + + `projects/test-suite/MultiSource/Applications/obsequi` is not at all + considered for GNU/Hurd. + + +/media/erich/home/thomas/tmp/llvm/test-suite/tschwinge/Art_Blakey/MultiSource/Benchmarks/Olden/voronoi/newvor.c:178:25: warning: implicit declaration of function 'memalign' is invalid in C99 [-Wimplicit-function-declaration] + + char* base = (char*)memalign(align_size, alloc_size); + + ^ + +1 warning generated. + + +/media/erich/home/thomas/tmp/llvm/test-suite/tschwinge/Art_Blakey/MultiSource/Benchmarks/Prolangs-C/archie-client/get_vdir.c:213:20: error: use of undeclared identifier 'MAXPATHLEN' + + char l_name[MAX_DIR_LINESIZE]; + + ^ + +/media/erich/home/thomas/tmp/llvm/test-suite/tschwinge/Art_Blakey/MultiSource/Benchmarks/Prolangs-C/archie-client/pprot.h:39:37: note: expanded from macro 'MAX_DIR_LINESIZE' + +#define MAX_DIR_LINESIZE 160+MAXPATHLEN /* Max linesize in directory */ + + ^ + + ..., and several more. |