coreutils/src/Makefile.am, branch v8.7

stat: add %m to output the mount point for a file

2010-08-27T21:16:10Z

* src/find-mount-point.c: A new file refactoring find_mount_point() out from df.c * src/find-mount-point.h: Likewise. * src/df.c: Use the new find-mount-point module. * src/stat.c (print_stat): Handle the new %m format. (find_bind_mount): A new function to return the bind mount for a file if any. (out_mount_mount): Print the bind mount for a file, or else the standard mount point given by the find-mount-point module. (usage): Document the %m format directive. * src/Makefile.am: Reference the refactored find-mount-point.c * po/POTFILES.in: Add find_mount_point.c to the translation list * doc/coreutils.texi (stat invocation): Document %m, and how it may differ from the mount point that df outputs. * test/misc/stat-mount: A new test to correlate mount points output from df and stat. * tests/Makefile.am: Reference the new test. * NEWS: Mention the new feature * THANKS: Add the author Signed-off-by: Pádraig Brady

randread: don't require -lrt

2010-07-16T22:49:05Z

Programs like 'sort' were linking to -lrt in order to get clock_gettime, but this was misguided: it wasted considerable resources while gaining at most 10 bits of entropy. Almost nobody needs the entropy, and there are better ways to get much better entropy for people who do need it. * gl/lib/rand-isaac.c (isaac_seed): Include not "gethrxtime.h". (isaac_seed): Use gettimeofday rather than gethrxtime. * gl/modules/randread (Depends-on): Depend on gettimeofday and not gethrxtime. * src/Makefile.am (mktemp_LDADD, shred_LDADD, shuf_LDADD, sort_LDADD): (tac_LDADD): Omit $(LIB_GETHRXTIME); no longer needed.

maint: omit $(POW_LIB) when linking, as this is no longer needed

2010-07-14T14:45:08Z

* src/Makefile.am (printf_LDADD, seq_LDADD, sleep_LDADD, sort_LDADD): (tail_LDADD, uptime_LDADD): Omit $(POW_LIB), as it's no longer needed due to recent gnulib changes, where the strtod module no longer uses the pow function. strtold needs pow only because it's sometimes aliased to strtod. See http://lists.gnu.org/archive/html/bug-gnulib/2010-07/msg00076.html

sort: parallelize internal sort

2010-07-13T00:44:46Z

This patch is by Gene Auyeung, Chris Dickens, Chen Guo, and Mike Nichols, based off of a patch by Paul Eggert, Glen Lenker, et. al., with a basic heap implementation based off of the GDSL heap, originally by Nicolas Darnis. The number of sorts done in parallel is limited to the number of available processors by default, or can be further restricted with the --parallel option. On a dual-die, 8 core Intel Xeon, results show sorting with 8 threads is almost 4 times faster than using a single thread. Timings when sorting a 96MB file: THREADS TIME (s) 1 5.10 2 2.87 4 1.75 8 1.31 Single threaded sorting has also been improved, especially for cheaper comparison operations: COMMAND BEFORE (s) AFTER (s) sort 8.822 8.716 sort -g 10.336 10.222 sort -n 3.077 2.961 LANG=C sort 2.169 2.066 * bootstrap.conf: Add heap, pthread. * coreutils.texi (sort): Describe the new --parallel option. * gl/lib/heap.c: New file. Very basic heap implementation. * gl/lib/heap.h: New file. * gl/modules/heap: New file. * src/Makefile.am: Add LIB_PTHREAD. * src/sort.c: Include heap.h, nproc.h, pthread.h. (MAX_MERGE): New macro. (SUBTHREAD_LINES_HEURISTIC, PARALLEL_OPTION): New constants. (MERGE_END, MERGE_ROOT): New constants. (struct merge_node): New struct. (struct merge_node_queue): New struct. (sortlines temp): Remove declaration. (usage, long_options, main): New option, --parallel. (specify_nthreads): New function. (mergelines): New signature, to emphasize the fact that the HI area must be part of the destination. All callers changed. (sequential_sort): New function, renamed from sortlines. Merge in the functionality of sortlines_temp. (compare_nodes): New function. (lock_node, unlock_node): New functions. (queue_destroy): New function. (queue_init): New function. (queue_insert): New function. (queue_pop): New function. (write_unique): New function. (mergelines_node): New function. (check_insert): New function. (update_parent): New function. (merge_loop): New function. (sortlines): Rewrite to support and use parallelism, with a new signature. All callers changed. (struct thread_args): New struct. (sortlines_thread): New function. (sortlines_temp): Remove. (sort): New argument NTHREADS. All uses changed. Output moved to mergelines_node. (main): disable threading if we are sorting at random. * tests/Makefile.am (TESTS): Add misc/sort-benchmark-random. * tests/misc/sort-benchmark-random: New file. Signed-off-by: Pádraig Brady

maint: remove unneeded double quotes on RHS of shell assignments

2010-05-25T10:32:03Z

Run this command: git grep -l 'LC_[A-Z]*="' \ | xargs perl -pi -e 's/(LC_[A-Z]*)="(.*?)"/$1=$2/' * src/Makefile.am: Write LC_ALL=$$locale, not LC_ALL="$$locale". * src/date.c (main): Similar, in a comment. * tests/misc/sort-month: Write LC_ALL=$LOC, not LC_ALL="$LOC".

maint: fix the fs-magic-compare rule

2010-05-17T14:10:24Z

* src/Makefile.am (fs-def): Sort definitions. This is required by fs-magic-compare's use of join.

tests: fix exit status of signal handlers in shell scripts

2010-04-23T13:44:19Z

The value of `$?' on entrance to signal handlers in shell scripts cannot be relied upon, so set the exit code explicitly. * cfg.mk (sc_always_defined_macros, sc_system_h_headers): Set the exit code in signal handler explicitly to 128 + SIG. * src/Makefile.am (sc_tight_scope): Likewise. * tests/test-lib.sh: Likewise.

maint: fix build on platforms that replace strsignal

2010-04-15T23:55:43Z

* src/Makefile.am (kill_LDADD): Add $(LIBTHREAD) so that we link with the appropriate libraries to provide Thread Local Storage on platforms that replace strsignal (like AIX for example). Tested-by: Daniel Richard G.

build: update after change in gnulib's lib-ignore module

2010-03-29T06:28:51Z

* src/Makefile.am (AM_LDFLAGS): Define. Use gnulib's new $(IGNORE_UNUSED_LIBRARIES_CFLAGS).

revert "maint: mark makefile "dist-hook" target as PHONY"

2010-03-18T20:08:07Z

* src/Makefile.am (dist-hook): Do not mark this target as PHONY, explicitly. Automake does it for us.