diff options
Diffstat (limited to 'open_issues')
| -rw-r--r-- | open_issues/glibc.mdwn | 127 |
1 files changed, 85 insertions, 42 deletions
diff --git a/open_issues/glibc.mdwn b/open_issues/glibc.mdwn index e7c8a0ba..0130aceb 100644 --- a/open_issues/glibc.mdwn +++ b/open_issues/glibc.mdwn @@ -27,8 +27,8 @@ Here's what's to be done for maintaining glibc. # Configuration -Last reviewed up to the [[Git mirror's 5a31b2836d55bcc0c5b6f90f1e89245118e7f508 -(2011-06-07) sources|source_repositories/glibc]]. +Last reviewed up to the [[Git mirror's 16292eddd77f66002e2104848e75a0fb4d316692 +(2011-08-04) sources|source_repositories/glibc]]. * t/dup3 @@ -51,6 +51,14 @@ Last reviewed up to the [[Git mirror's 5a31b2836d55bcc0c5b6f90f1e89245118e7f508 * `TLS_INIT_TP_EXPENSIVE` is unused; Hurd def. can be removed. + * t/verify.h + + People didn't like this too much. + + Other examples: + + * 11988f8f9656042c3dfd9002ac85dff33173b9bd -- `static_assert` + * [[toolchain/cross-gnu]], without `--disable-multi-arch` i686-pc-gnu-gcc ../sysdeps/i386/i686/multiarch/strcmp.S -c [...] @@ -134,10 +142,12 @@ Last reviewed up to the [[Git mirror's 5a31b2836d55bcc0c5b6f90f1e89245118e7f508 something to work on, here's a list. `AT_EMPTY_PATH`, `CLOCK_BOOTTIME`, `CLOCK_BOOTTIME_ALARM`, - `CLOCK_REALTIME_ALARM`, `O_PATH`, `RLIMIT_RTTIME`, `clock_adjtime`, - `fallocate`, `fallocate64`, `getcontext` (and `setcontext`), - `name_to_handle_at`, `open_by_handle_at`, `sendmmsg`, `setns`, - `sync_file_range` + `CLOCK_REALTIME_ALARM`, `O_PATH`, + `PTRACE_*` (for example, cbff0d9689c4d68578b6a4f0a17807232506ea27), + `RLIMIT_RTTIME`, `SEEK_DATA` (`unistd.h`), `SEEK_HOLE` (`unistd.h`) + `clock_adjtime`, `fallocate`, `fallocate64`, `getcontext` (and + `setcontext`), `name_to_handle_at`, `open_by_handle_at`, `sendmmsg`, + `setns`, `sync_file_range` * `syncfs` @@ -153,12 +163,38 @@ Last reviewed up to the [[Git mirror's 5a31b2836d55bcc0c5b6f90f1e89245118e7f508 Do we support `AT_FDCWD` et al.? + * `MAP_POPULATE` (`mmap`, `sys/mman.h`) + + Is only advisory, so can worked around with `#define 0`. + * Building with GCC 4.5, 4.6, trunk will cause different kinds of faults. * Create `t/cleanup_kernel-features.h`. * Add tests from Linux kernel commit messages for `t/dup3` et al. + * In `sysdeps/unix/sysv/linux/Makefile`, there are a bunch of + `-DHAVE_SENDFILE` -- but we do have `sendfile`, too. + + * `/usr/include/pthread.h` overwrite issue + + `make`, after editing `nss/nss_db/db-initgroups.c`: + + [...] + make[2]: Leaving directory `/media/erich/home/thomas/tmp/glibc/tschwinge/Roger_Whittaker/resolv' + make subdir=nss -C nss ..=../ others + make[2]: Entering directory `/media/erich/home/thomas/tmp/glibc/tschwinge/Roger_Whittaker/nss' + /usr/bin/install -c -m 644 ../include/pthread.h /usr/include/pthread.h + /usr/bin/install: cannot remove `/usr/include/pthread.h': Permission denied + make[2]: *** [/usr/include/pthread.h] Error 1 + make[2]: Leaving directory `/media/erich/home/thomas/tmp/glibc/tschwinge/Roger_Whittaker/nss' + make[1]: *** [nss/others] Error 2 + make[1]: Leaving directory `/media/erich/home/thomas/tmp/glibc/tschwinge/Roger_Whittaker' + make: *** [all] Error 2 + + See `id:"871uv99c59.fsf@kepler.schwinge.homeip.net"`. Passing + `install_root=/INVALID` to `make`/`make check` is a cheap cure. + * Verify baseline changes, if we need any follow-up changes: * a11ec63713ea3903c482dc907a108be404191a02 @@ -249,26 +285,58 @@ Last reviewed up to the [[Git mirror's 5a31b2836d55bcc0c5b6f90f1e89245118e7f508 80e2212d8e59933a1641f029ebd360526ff0e074 + 4997db742946d08be4378cf91221f558f928bc73 -- `Don't document si_code used for raise()`. Also for `bits/siginfo.h`? - * 01f16ab0a581838d44ad79e82c0c3e1691d8506e -- `Prevent loader from - loading itself` + * 11988f8f9656042c3dfd9002ac85dff33173b9bd -- pldd, Does it work? + Probably not: needs `/proc/[PID]/auxv`, `/proc/[PID]/exe`, + `/proc/[PID]/mem` ([[!tag open_issue_hurd]], + [[hurd/translator/procfs]]). + * 78a7eee7fab0802addf500c481335ed6e9899bda + + 62bede1313c3a1fa477a092006d64436de6821b1 + + 113ddea44742d006d7a910a0707106c7defcfd9b -- `.ctors/.dtors`. Watch + what happens. `AC_TRY_LINK` vs. cross compiling/bootstrapping? Native + build: `checking whether to use .ctors/.dtors header and + trailer... no`; results in `#define NO_CTORS_DTORS_SECTIONS 1`: OK (as + before). + * 9113ea1f3f29b3aee710efc829e85a9772bcb836 -- `--experimental-malloc`. + Watch what happens. + * 4e34ac6a1e256f40ab0d8eeed37aa1ea83440e76 -- `-defsym=_begin=0`. Watch + what happens. Native build: apparently OK. + * f781ef4015504e8a1da649c266584976238aa079 (`--with-default-link`) + + 1b74661a6b93a892ecb1c717dedeedba5c2a976c + + fd5e21c75d8e9221d766f4bc922a237265514ec2. Watch what happens. Native + build: `use-default-link = no`. + * de283087c74f720cf8a7171972e72b5fa2b45e79 (`Handle Lustre filesystem`), + 4e5f31c847982997c856f03bbc35134e9fd0f61f (`Handle ext4 in + {,f}pathconf`). What about stuff like that for us? + * d30cf5bb00bfb286ff14d931fb69f5b53724bcdc (`Find readelf with + AC_CHECK_TOOL`). Aren't there more in other configure.in and Makefile + files? + * 574920b446870648623a85e00dd8f3ca9f482c0e (`Rewrite -z relro configure + check`) + defe906180bad4e356bb55b60b10abd41b7ee3a1 + + 9fa2c03227e159050e9dc4ec1e315e5909901580. Watch what happens. Native + build: OK, `yes` (as before). + * 5c55070081c27168d27145afdf6a92cd56c9abb3 (`linker + --print-output-format`). Watch what happens. Native build: OK, + `elf32-i386`. + * 7a03a9c8c4b37b88ac5e82b557d974f3161ddaf9 (`Add read barriers in + cancellation initialization`). Is this needed in other places, too? # Build Here's a log of a glibc build run; this is from our [[Git repository's -d97df6798c8f0fd8e21c2610a1cfac2e3272b5f1 (2011-09-19; 2011-06-07) +946cceff76422cedd8ca2f50bced0a672e64a9a9 (2011-09-22; 2011-08-04) sources|source_repositories/glibc]], run on coulomb.SCHWINGE. $ export LC_ALL=C - $ ../Roger_Whittaker/configure --without-cvs --prefix=/usr --disable-profile --disable-multi-arch --build=i486-gnu --host=i486-gnu CC=gcc-4.4 CXX=g++-4.4 2>&1 | tee log_build + $ ../Roger_Whittaker/configure AUTOCONF=: --without-cvs --prefix=/usr --disable-profile --disable-multi-arch --build=i486-gnu --host=i486-gnu CC=gcc-4.4 CXX=g++-4.4 2>&1 | tee log_build [...] - $ make 2>&1 | tee log_build_ + $ make install_root=/INVALID 2>&1 | tee log_build_ [...] This takes up around 400 MiB and needs roughly 120 min on coulomb.SCHWINGE. <!-- - $ (make && touch .go-check) 2>&1 | tee log_build_ && test -f .go-check && make -k check 2>&1 | tee log_check + $ (make install_root=/INVALID && touch .go-check) 2>&1 | tee log_build_ && test -f .go-check && make -k install_root=/INVALID check 2>&1 | tee log_check $ find ./ -name \*.o -o -name \*.os -o -name \*.oS | while read f; do ~/tmp/gcc/git/contrib/compare-debug --preserve ../Roger_Whittaker.build-gcc-4.4-486.O/"$f" "$f"; done 2>&1 | less $ while read f; do (readelf -a "$f" && objdump -xDrtw "$f") > N && (cd ../Roger_Whittaker.build-gcc-4.4-486.O/ && readelf -a "$f" && objdump -xDrtw "$f") > O && diff -u O N | less; done $ find ./ -name \*.o -o -name \*.os -o -name \*.oS | while read f; do readelf -h "$f" | grep OS/ABI | (read a b && [ x"$b" != x'UNIX - System V' ] && echo "### $f: $b"); done @@ -310,7 +378,7 @@ TODO. # Testsuite - $ make -k check 2>&1 | tee log_check + $ make -k install_root=/INVALID check 2>&1 | tee log_check [...] This needs roughly 50 min on coulomb.SCHWINGE. @@ -416,10 +484,6 @@ There is quite a baseline of failures. /media/erich/home/thomas/tmp/glibc/tschwinge/Roger_Whittaker/string/test-strnlen.c:87: undefined reference to `MIN' - * `assert/test-assert.out` (not seen anymore 1 of 1) - - Out of ten manual invocations, got one successful. - * `stdlib/bug-getcontext.out` getcontext failed, errno: 1073741902. @@ -430,6 +494,10 @@ There is quite a baseline of failures. /home/thomas/tmp/glibc/tschwinge/Roger_Whittaker.build-gcc-4.4-486/elf/tst-unique3lib.os:(.data.DW.ref.__gxx_personality_v0[DW.ref.__gxx_personality_v0]+0x0): undefined reference to `__gxx_personality_v0' + * `stdio-common/tst-rndseek.out` + + Timeout. + ## OLD @@ -498,28 +566,3 @@ New failures: * posix/bug-glob3.out (SEGFAULT; but also on Linux) * wctype/bug-wctypeh.o (compile error; but also on Linux) - -Other things noticed: - - * Running `make -k check` for the second time: - - -i486-gnu-gcc tst-timer2.c -c -std=gnu99 -fgnu89-inline -O2 -Wall -Winline -Wwrite-strings -fmerge-all-constants -g -Wno-parentheses -Wstrict-prototypes -mpreferred-stack-boundary=2 -I../include -I/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/rt -I/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build -I../sysdeps/i386/elf -I../sysdeps/mach/hurd/i386 -I../sysdeps/mach/hurd -I../sysdeps/gnu -I../sysdeps/unix/bsd/bsd4.4 -I../sysdeps/unix/mman -I../sysdeps/mach/i386 -I../sysdeps/mach -I../sysdeps/i386/i486 -I../sysdeps/i386/fpu -I../sysdeps/i386 -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/ldbl-96 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/flt-32 -I../sysdeps/unix/bsd -I../sysdeps/unix/common -I../sysdeps/unix/inet -I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic -I../hurd -I/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/hurd/ -I../mach -I/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/mach/ -I.. -I../libio -I. -D_LIBC_REENTRANT -include ../include/libc-symbols.h -DNOT_IN_libc=1 -o /home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/rt/tst-timer2.o -MD -MP -MF /home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/rt/tst-timer2.o.dt -MT /home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/rt/tst-timer2.o - -tst-timer2.c: In function ‘do_test’: - -tst-timer2.c:33: error: ‘SIGRTMIN’ undeclared (first use in this function) - -tst-timer2.c:33: error: (Each undeclared identifier is reported only once - -tst-timer2.c:33: error: for each function it appears in.) - -make[2]: *** [/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/rt/tst-timer2.o] Error 1 - +/usr/bin/install -c -m 644 ../include/pthread.h /usr/include/pthread.h - +/usr/bin/install: cannot remove `/usr/include/pthread.h': Permission denied - +make[2]: *** [/usr/include/pthread.h] Error 1 - - -i486-gnu-gcc tst-thrlock.c -c -std=gnu99 -fgnu89-inline -O2 -Wall -Winline -Wwrite-strings -fmerge-all-constants -g -Wno-parentheses -Wstrict-prototypes -mpreferred-stack-boundary=2 -I../include -I/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/elf -I/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build -I../sysdeps/i386/elf -I../sysdeps/mach/hurd/i386 -I../sysdeps/mach/hurd -I../sysdeps/gnu -I../sysdeps/unix/bsd/bsd4.4 -I../sysdeps/unix/mman -I../sysdeps/mach/i386 -I../sysdeps/mach -I../sysdeps/i386/i486 -I../sysdeps/i386/fpu -I../sysdeps/i386 -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/ldbl-96 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/flt-32 -I../sysdeps/unix/bsd -I../sysdeps/unix/common -I../sysdeps/unix/inet -I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic -I../hurd -I/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/hurd/ -I../mach -I/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/mach/ -I.. -I../libio -I. -D_LIBC_REENTRANT -include ../include/libc-symbols.h -DNOT_IN_libc=1 -o /home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/elf/tst-thrlock.o -MD -MP -MF /home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/elf/tst-thrlock.o.dt -MT /home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/elf/tst-thrlock.o - -i486-gnu-gcc -nostdlib -nostartfiles -o /home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/elf/tst-thrlock -Wl,-dynamic-linker=/usr/lib/ld.so.1 -Wl,-z,combreloc -Wl,-z,relro -Wl,--hash-style=both /home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/csu/crt1.o /home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/csu/crti.o `i486-gnu-gcc --print-file-name=crtbegin.o` /home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/elf/tst-thrlock.o /home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/dlfcn/libdl.so.2 -Wl,-rpath-link=/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build:/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/math:/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/elf:/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/dlfcn:/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/nss:/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/nis:/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/rt:/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/resolv:/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/crypt:/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/mach:/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/hurd /home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/libc.so.0.3 /home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/libc_nonshared.a -lgcc -Wl,--as-needed -lgcc_s -Wl,--no-as-needed `i486-gnu-gcc --print-file-name=crtend.o` /home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/csu/crtn.o - -/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/elf/tst-thrlock.o: In function `do_test': - -/media/data/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker/elf/tst-thrlock.c:38: undefined reference to `pthread_create' - -/media/data/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker/elf/tst-thrlock.c:48: undefined reference to `pthread_join' - -collect2: ld returned 1 exit status - -make[2]: *** [/home/tschwinge/tmp/glibc/tschwinge--Roger_Whittaker.build/elf/tst-thrlock] Error 1 - +/usr/bin/install -c -m 644 ../include/pthread.h /usr/include/pthread.h - +/usr/bin/install: cannot remove `/usr/include/pthread.h': Permission denied - +make[2]: *** [/usr/include/pthread.h] Error 1 |