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<title>coreutils/src/coreutils.c, branch v8.26</title>
<subtitle>Mirror of https://https.git.savannah.gnu.org/git/coreutils.git/
</subtitle>
<id>https://git.shady.money/coreutils/atom?h=v8.26</id>
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<updated>2016-10-16T11:23:55Z</updated>
<entry>
<title>all: use die() rather than error(EXIT_FAILURE)</title>
<updated>2016-10-16T11:23:55Z</updated>
<author>
<name>Pádraig Brady</name>
<email>P@draigBrady.com</email>
</author>
<published>2016-10-15T22:10:35Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/coreutils/commit/?id=492dcb2eb191b844a2fd5e51db3eed85289bea1f'/>
<id>urn:sha1:492dcb2eb191b844a2fd5e51db3eed85289bea1f</id>
<content type='text'>
die() has the advantage of being apparent to the compiler
that it doesn't return, which will avoid warnings in some cases,
and possibly generate better code.
* cfg.mk (sc_die_EXIT_FAILURE): A new syntax check rule to
catch any new uses of error (CONSTANT, ...);
</content>
</entry>
<entry>
<title>maint: update all copyright year number ranges</title>
<updated>2016-01-01T14:10:41Z</updated>
<author>
<name>Pádraig Brady</name>
<email>P@draigBrady.com</email>
</author>
<published>2016-01-01T14:10:41Z</published>
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<id>urn:sha1:b16e999f553b682e74e0a56750f649da05130c4f</id>
<content type='text'>
Run "make update-copyright" and then...

* gnulib: Update to latest with copyright year adjusted.
* tests/init.sh: Sync with gnulib to pick up copyright year.
* bootstrap: Likewise.
* tests/sample-test: Adjust to use the single most recent year.
</content>
</entry>
<entry>
<title>all: avoid quoting file names when possible</title>
<updated>2015-11-04T23:30:14Z</updated>
<author>
<name>Pádraig Brady</name>
<email>P@draigBrady.com</email>
</author>
<published>2015-11-01T18:53:26Z</published>
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<id>urn:sha1:08e8fd7e38f2dae7c69c54eb22d508b6517e66e5</id>
<content type='text'>
Quote file names using the "shell-escape" or "shell-escape-always"
methods, which quote as appropriate for most shells,
and better support copy and paste of presented names.
The "always" variant is used when the file name is
embedded in an error message with surrounding spaces.

* cfg.mk (sc_error_shell_quotes): A new syntax check rule
to suggest quotef() where appropriate.
(sc_error_shell_always_quotes): Likewise for quoteaf().
* src/system.h (quotef): A new define to apply shell quoting
when needed.  I.E. when shell character or ':' is present.
(quoteaf): Likewise, but always quote.
* src/*.c: Use quotef() and quoteaf() rather than quote()
where appropriate.
* tests/: Adjust accordingly.
</content>
</entry>
<entry>
<title>build: fix SINGLE_BINARY build when printf is a macro</title>
<updated>2015-04-28T22:48:30Z</updated>
<author>
<name>Yunlian Jiang</name>
<email>yunlian@chromium.org</email>
</author>
<published>2015-04-28T22:47:20Z</published>
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<id>urn:sha1:c77a96ccba91ca687fe0c22e3b2bb1141fbab421</id>
<content type='text'>
* src/coreutils.c (usage): include coreutils.h outside
the printf call, because if it's a macro you will get the error:
embedding a #include directive within macro arguments is not supported
</content>
</entry>
<entry>
<title>maint: update all copyright year number ranges</title>
<updated>2015-01-01T04:52:17Z</updated>
<author>
<name>Pádraig Brady</name>
<email>P@draigBrady.com</email>
</author>
<published>2015-01-01T04:49:02Z</published>
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<id>urn:sha1:e0afeb0099c899c2caa7453072e2d223d8f0ceb9</id>
<content type='text'>
Run "make update-copyright" and then...

* tests/sample-test: Adjust to use the single most recent year.
* tests/du/bind-mount-dir-cycle-v2.sh: Fix case in copyright message,
so that year is updated automatically in future.
</content>
</entry>
<entry>
<title>doc: output correct --help references with --program-prefix</title>
<updated>2014-09-19T10:24:05Z</updated>
<author>
<name>Pádraig Brady</name>
<email>P@draigBrady.com</email>
</author>
<published>2014-09-18T13:50:47Z</published>
<link rel='alternate' type='text/html' href='https://git.shady.money/coreutils/commit/?id=8e93dc629727140e950a709008f9a17ca461af63'/>
<id>urn:sha1:8e93dc629727140e950a709008f9a17ca461af63</id>
<content type='text'>
* src/system.h (emit_ancillary_info): Take the invariant PROGRAM_NAME
as a parameter, so that consistent references are made to online docs
and texinfo nodes, when a --program-prefix is in place.  Note the
man pages don't need this fix as they're generated before the program
prefix is used.
* NEWS: Mention the improvements in references to online documentation.
</content>
</entry>
<entry>
<title>maint: avoid file-scope names of the form _[a-z]*</title>
<updated>2014-09-09T03:48:44Z</updated>
<author>
<name>Paul Eggert</name>
<email>eggert@cs.ucla.edu</email>
</author>
<published>2014-09-09T03:41:44Z</published>
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<id>urn:sha1:c383c570c67e0ede0d3aa0ce08961d5745e7764d</id>
<content type='text'>
The C standard says this isn't portable, if you include
standard include files.
* build-aux/gen-single-binary.sh:
* src/coreutils-arch.c (single_binary_main_arch)
(single_binary_main_uname):
* src/coreutils-dir.c (single_binary_main_ls)
(_single_binary_main_dir):
* src/coreutils-vdir.c (single_binary_main_ls)
(_single_binary_main_vdir):
* src/coreutils.c (SINGLE_BINARY_PROGRAM):
Remove leading _ from single_binary prefix.
* src/numfmt.c (round_style): Rename from _round.  All uses changed.
(inval_style): Rename from _invalid.  All uses changed.
</content>
</entry>
<entry>
<title>maint: prefer 'return status;' to 'exit (status);' in 'main'</title>
<updated>2014-09-09T03:48:44Z</updated>
<author>
<name>Paul Eggert</name>
<email>eggert@cs.ucla.edu</email>
</author>
<published>2014-09-08T23:31:14Z</published>
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<id>urn:sha1:8defcee49be881f8c7b8327f07b988fbe5c7171d</id>
<content type='text'>
* build-aux/gen-single-binary.sh: Don't use ATTRIBUTE_NORETURN
for main functions.
* src/base64.c, src/basename.c, src/cat.c, src/chcon.c, src/chgrp.c:
* src/chmod.c, src/chown.c, src/chroot.c, src/cksum.c, src/comm.c:
* src/cp.c, src/csplit.c, src/cut.c, src/date.c, src/dd.c, src/df.c:
* src/dircolors.c, src/dirname.c, src/du.c, src/echo.c, src/env.c:
* src/expand.c, src/expr.c, src/factor.c, src/fmt.c, src/fold.c:
* src/getlimits.c, src/groups.c, src/head.c, src/hostid.c:
* src/hostname.c, src/id.c, src/install.c, src/join.c, src/kill.c:
* src/link.c, src/ln.c, src/logname.c, src/ls.c, src/make-prime-list.c:
* src/md5sum.c, src/mkdir.c, src/mkfifo.c, src/mknod.c, src/mktemp.c:
* src/mv.c, src/nice.c, src/nl.c, src/nohup.c, src/nproc.c:
* src/numfmt.c, src/od.c, src/paste.c, src/pathchk.c, src/pinky.c:
* src/pr.c, src/printenv.c, src/printf.c, src/ptx.c, src/pwd.c:
* src/readlink.c, src/realpath.c, src/rm.c, src/rmdir.c, src/runcon.c:
* src/seq.c, src/shred.c, src/shuf.c, src/sleep.c, src/sort.c:
* src/split.c, src/stat.c, src/stdbuf.c, src/stty.c, src/sum.c:
* src/sync.c, src/tac.c, src/tail.c, src/tee.c, src/timeout.c:
* src/touch.c, src/tr.c, src/true.c, src/truncate.c, src/tsort.c:
* src/tty.c, src/uname.c, src/unexpand.c, src/uniq.c, src/unlink.c:
* src/uptime.c, src/users.c, src/wc.c, src/who.c, src/whoami.c:
In 'main' functions, Prefer 'return status;' to 'exit (status);'.
* src/coreutils-arch.c (_single_binary_main_uname)
(_single_binary_main_arch):
* src/coreutils-dir.c, src/coreutils-vdir.c (_single_binary_main_ls)
(_single_binary_main_dir, _single_binary_main_vdir):
Omit ATTRIBUTE_NORETURN.  Return a value.
* src/coreutils.c (SINGLE_BINARY_PROGRAM): Omit ATTRIBUTE_NORETURN.
(launch_program): Now static.
* src/dd.c (finish_up): New function.
(quit, main): Use it.
* src/getlimits.c (main): Return a proper exit status.
* src/test.c (test_main_return): New macro.
(main): Use it.
* src/logname.c, src/nohup.c, src/whoami.c:
Use 'error' to simplify exit status in 'main' function.
* src/yes.c (main): Use 'return' rather than 'error' to exit,
so that GCC doesn't suggest ATTRIBUTE_NORETURN.
</content>
</entry>
<entry>
<title>build: support building all tools in a single binary</title>
<updated>2014-07-13T13:23:09Z</updated>
<author>
<name>Alex Deymo</name>
<email>deymo@chromium.org</email>
</author>
<published>2014-06-06T02:50:32Z</published>
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<id>urn:sha1:71e2ea773414b2316bbe6b803b9a52c38d3752e8</id>
<content type='text'>
Add the --enable-single-binary option to the configure file.
When enabled, this option builds a single binary file containing
the selected tools.  Which tool gets executed depends on the value
of argv[0] which can be set implicitly through symlinks to the
single program.

This setup reduces significantly the size of a complete coreutils
install, since code from lib/libcoreutils.a is not duplicated in
every one of the more than 100 binaries.  Runtime overhead is
increased due to more dynamic libraries being loaded, and extra
initialization being performed for all utils.  Also initially
a larger binary is loaded from storage, though this is usually
alleviated due to caching and lazy mmaping of unused blocks,
and in fact the single binary should have better caching
characteristics.

Comparing the size of the individual versus single binary on x86_64:
  $ cd src
  $ size coreutils
  $ size -t $(../build-aux/gen-lists-of-programs.sh --list-progs |
              grep -Ev '(coreutils|libstdbuf)') | tail -n1
     text    data     bss     dec     hex filename
  1097416    5388   88432 1191236  122d44 src/coreutils
  4901010  124964  163768 5189742  4f306e (TOTALS)

Storage requirements are reduced similarly:
  $ cd src
  $ du -h coreutils
  $ du -ch $(../build-aux/gen-lists-of-programs.sh --list-progs |
             grep -Ev '(coreutils|libstdbuf)') | tail -n1
  1.2M    coreutils
  5.3M    total

When installing, the makefile will create either symlinks or
shebangs based on the --enable-single-binary setting, for
each configured tool. In this way, all the tools are still
callable individually, but they are all implemented by the same
"coreutils" binary installed on the same directory.

* .gitignore: Add new generated files.
* Makefile.am: New rules to generate build-aux/gen-single-binary.sh
  and install symlinks.
* NEWS: Mention the new feature.
* README: Add "coreutils" to the list of utils.
* bootstrap.conf: Regenerate src/single-binary.mk
* build-aux/gen-lists-of-programs.sh: New --list-progs option.
* build-aux/gen-single-binary.sh: Regenerate
* configure.ac: New --enable-single-binary option and other variables.
Disallow --enable-single-binary=symlinks with --program-prefix et. al.
* man/coreutils.x: Manpage hook.
* man/local.mk: Add manpage hook and fix dependencies.
* src/coreutils.c: Multicall implementation.
* src/local.mk: New rules for the single binary option.
* tests/local.mk: Add $single_binary_progs to support
require_built_() from init.cfg
* tests/misc/env.sh: Avoid the use of symlink to echo.
* tests/misc/help-version.sh: Add exception for coreutils.
* tests/install/basic-1.sh: Really avoid using ginstall strip
functionality if there is an issue with the independent strip command.
* src/kill.c: Changes to call exit() in main.
* src/readlink.c: Likewise.
* src/shuf.c: Likewise.
* src/timeout.c: Likewise.
* src/truncate.c: Likewise.
</content>
</entry>
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