platform_external_mksh/Android.mk, branch oreo-m2-s5-release Unnamed repository; edit this file 'description' to name the repository. Build vendor shell unconditionally. 2017-06-23T17:51:47+00:00 padarshr padarshr@codeaurora.org 2017-06-23T17:48:38+00:00 8749a1ed1f5f004f14bfd6841f4dfc892b7a27e0 Always build vendor shell irrespective of whether PRODUCT_FULL_TREBLE is enabled or not, as even on Non-Full treble builds this can be useful to start vendor scripts. Change-Id: I93e514760cfcfd4f7f4ce401eae50d839638c51c 
Always build vendor shell irrespective of whether
PRODUCT_FULL_TREBLE is enabled or not, as even on Non-Full
treble builds this can be useful to start vendor scripts.

Change-Id: I93e514760cfcfd4f7f4ce401eae50d839638c51c
sh_vendor link to libc as a shared library. 2017-06-22T00:31:43+00:00 Yifan Hong elsk@google.com 2017-06-22T00:05:15+00:00 5c1d501b91572d4a6375ab5a74cf9b29b98cf773 Test: BOARD_VNDK_VERSION m -j -k Test: m -j -k and boots Bug: 33241851 Change-Id: Ica98c551892ff83b7e9e661d2ddfa4bac7d2c6f4 Merged-In: Ica98c551892ff83b7e9e661d2ddfa4bac7d2c6f4 
Test: BOARD_VNDK_VERSION m -j -k
Test: m -j -k and boots

Bug: 33241851
Change-Id: Ica98c551892ff83b7e9e661d2ddfa4bac7d2c6f4
Merged-In: Ica98c551892ff83b7e9e661d2ddfa4bac7d2c6f4
install copy of shell in vendor partition 2017-06-21T21:21:30+00:00 Sandeep Patil sspatil@google.com 2017-04-13T01:02:50+00:00 f3308fef4591b5274405ab1b6960b15ed7bfa474 This is to be used by vendor processes. Particularly, vendor shell scripts that get launched as init services. The shell is restricted from running as interactive mode in SEPolicy. Unless it is launched from rooted system shell. The change also adds the ability to override the default $PATH regardless of the environment. Bug: 36463595 Test: Boot sailfish with new shell and ensure all init services exit with status 0 Merged-In: I1eaf2c8a8f6905caf00d53e067add67eaea00e09 Change-Id: I1eaf2c8a8f6905caf00d53e067add67eaea00e09 Signed-off-by: Sandeep Patil <sspatil@google.com> (cherry picked from commit c2036115102d80c026b70846812a42204522f9ac) 
This is to be used by vendor processes. Particularly, vendor shell
scripts that get launched as init services. The shell is restricted from
running as interactive mode in SEPolicy. Unless it is launched from rooted
system shell. The change also adds the ability to override the default
$PATH regardless of the environment.

Bug: 36463595
Test: Boot sailfish with new shell and ensure all init services exit
      with status 0

Merged-In: I1eaf2c8a8f6905caf00d53e067add67eaea00e09
Change-Id: I1eaf2c8a8f6905caf00d53e067add67eaea00e09
Signed-off-by: Sandeep Patil <sspatil@google.com>
(cherry picked from commit c2036115102d80c026b70846812a42204522f9ac)
Upgrade to mksh R55. 2017-04-12T23:52:30+00:00 Elliott Hughes enh@google.com 2017-04-12T23:52:30+00:00 a3c3f96fb829bbed2d01b359890bf8b729fa5c54 R55 is mostly a feature release with summary bugfixes: [komh] Fix OS/2 search_access() and UNC path logic [tg] Undocument printf(1) to avoid user confusion [Jean Delvare, tg] Fix printf builtin -R option [tg] Make ${var@x}, unknown x, fail (thanks izabera) [tg] ${var=x} must evaluate x in scalar context (10x Martijn Dekker) [tg] Fixup relation between lksh and mksh, reduce delta [tg] Improve manpage display; add OS/2 $PATH FAQ [Jean Delvare] Fix bugs in manpage [tg] Review tilde expansion, removing “odd use of KEEPASN” and introduce POSIX “declaration utility” concept; wait isn’t one [tg] Add \builtin utility, declaration utility forwarder [tg] Make $'\xz' expand to xz, not \0 [tg] Use fixed string pooling (requires the above change in host mksh) [tg] POSIX declaration commands can have varassign and redirections [Martijn Dekker] Add typeset -g, replacing homegrown “global” [Harvey-OS] Disable NOPROSPECTOFWORK, APEX is reportedly fixed now [tg] Display ulimit -a output with flags; improve Haiku [tg] Drop old let] hack, use \builtin internally [tg] Fix padding in Lb64encode in dot.mkshrc [tg] Move FAQ content to a separate, new FAQ section in the manpage [tg] Add new standard variable PATHSEP (‘:’, ‘;’ on OS/2) [Martijn Dekker] Fix LINENO in eval and alias [komh] Fix “\builtin” on OS/2 [tg] Improve (internal) character classes code for speed [tg] Fix: the underscore is no drive letter [tg] No longer hard-disable persistent history support in lksh [tg] Introduce build flag -T for enabling “textmode” on OS/2 (supporting CR+LF line endings, but incompatible with mksh proper) [tg] Merge mksh-os2 [tg] Permit changing $OS2_SHELL during a running shell [tg] Fix multibyte handling in ^R (Emacs search-history) [tg] Allow “typeset -p arrname[2]” to work [tg] Make some error messages more consistent [tg, komh] Disable UTF-8 detection code for OS/2 as unrealistic [tg, sdaoden] Limit alias name chars to POSIX plus non-leading ‘-’ [tg, Martijn Dekker] Expand aliases at COMSUB parse time [tg] Make “typeset -f” output alias-resistent [tg, Martijn Dekker] Permit “eval break” and “eval continue” [tg] Make -masm=intel safe on i386 [tg] Disambiguate $((…)) vs. $((…)…) in “typeset -f” output [Jean Delvare] Clarify the effect of exit and return in a subshell [tg] Simplify compile-time asserts and make them actually compile-time [tg] Fix ^O in Emacs mode if the line was modified (LP#1675842) [tg] Address Coverity Scan… stuff… now that it builds again [Martijn Dekker, tg] Add test -v [tg] Document set -o posix/sh completely Bug: N/A Test: manual Change-Id: Ifce1d879933a5773e98b4f34f4a9bb86a6bdff3b 
R55 is mostly a feature release with summary bugfixes:

[komh] Fix OS/2 search_access() and UNC path logic
[tg] Undocument printf(1) to avoid user confusion
[Jean Delvare, tg] Fix printf builtin -R option
[tg] Make ${var@x}, unknown x, fail (thanks izabera)
[tg] ${var=x} must evaluate x in scalar context (10x Martijn Dekker)
[tg] Fixup relation between lksh and mksh, reduce delta
[tg] Improve manpage display; add OS/2 $PATH FAQ
[Jean Delvare] Fix bugs in manpage
[tg] Review tilde expansion, removing “odd use of KEEPASN” and introduce POSIX “declaration utility” concept; wait isn’t one
[tg] Add \builtin utility, declaration utility forwarder
[tg] Make $'\xz' expand to xz, not \0
[tg] Use fixed string pooling (requires the above change in host mksh)
[tg] POSIX declaration commands can have varassign and redirections
[Martijn Dekker] Add typeset -g, replacing homegrown “global”
[Harvey-OS] Disable NOPROSPECTOFWORK, APEX is reportedly fixed now
[tg] Display ulimit -a output with flags; improve Haiku
[tg] Drop old let] hack, use \builtin internally
[tg] Fix padding in Lb64encode in dot.mkshrc
[tg] Move FAQ content to a separate, new FAQ section in the manpage
[tg] Add new standard variable PATHSEP (‘:’, ‘;’ on OS/2)
[Martijn Dekker] Fix LINENO in eval and alias
[komh] Fix “\builtin” on OS/2
[tg] Improve (internal) character classes code for speed
[tg] Fix: the underscore is no drive letter
[tg] No longer hard-disable persistent history support in lksh
[tg] Introduce build flag -T for enabling “textmode” on OS/2 (supporting CR+LF line endings, but incompatible with mksh proper)
[tg] Merge mksh-os2
[tg] Permit changing $OS2_SHELL during a running shell
[tg] Fix multibyte handling in ^R (Emacs search-history)
[tg] Allow “typeset -p arrname[2]” to work
[tg] Make some error messages more consistent
[tg, komh] Disable UTF-8 detection code for OS/2 as unrealistic
[tg, sdaoden] Limit alias name chars to POSIX plus non-leading ‘-’
[tg, Martijn Dekker] Expand aliases at COMSUB parse time
[tg] Make “typeset -f” output alias-resistent
[tg, Martijn Dekker] Permit “eval break” and “eval continue”
[tg] Make -masm=intel safe on i386
[tg] Disambiguate $((…)) vs. $((…)…) in “typeset -f” output
[Jean Delvare] Clarify the effect of exit and return in a subshell
[tg] Simplify compile-time asserts and make them actually compile-time
[tg] Fix ^O in Emacs mode if the line was modified (LP#1675842)
[tg] Address Coverity Scan… stuff… now that it builds again
[Martijn Dekker, tg] Add test -v
[tg] Document set -o posix/sh completely

Bug: N/A
Test: manual
Change-Id: Ifce1d879933a5773e98b4f34f4a9bb86a6bdff3b
Upgrade to mksh R40. 2016-12-08T23:59:56+00:00 Elliott Hughes enh@google.com 2016-12-08T23:56:04+00:00 966dd55b233982d9657c50b971cfa754d0315c19 From the release notes... R54 is a bugfix release with moderate new features: [tg] Simplify and improve code and manual page [tg] Try GCC 5’s new -malign-data=abi [tg] Allow interrupting builtin cat even on fast devices (LP#1616692) [tg] Update to Unicode 9.0.0 [Andreas Buschka] Correct English spelling [tg] Handle set -e-related error propagation in || and && constructs correctly [tg] Initialise memory for RNG even when not targeting Valgrind [tg] Shrink binary size [Brian Callahan] Improve support for the contemporary pcc compiler [tg] Fix side effects with lazy evaluation; spotted by ormaaj [tg] New flags -c (columnise), -l, -N for the print builtin [Larry Hynes] Fix English, spelling mistakes, typos in the manpage [tg, ormaah] Return 128+SIGALRM if read -t times out, like GNU bash [Martijn Dekker] Install both manpages from Build.sh [Martijn Dekker] Document case changes are ASCII-only [Ronald G. Minnich, Elbing Miss, Álvaro Jurado, tg] Begin porting to Harvey-OS and APEX (similar to Plan 9 and APE) [KO Myung-Hun] More infrastructure for the OS/2 (EMX, KLIBC) port I've continued to disable the cat, realpath, and sleep builtins, and added print to the list (now I've realized it's unrelated to the print on the desktop). Bug: N/A Test: manual Change-Id: Iead4c1b572c6f288b2ab2b884125dcb606f1e356 
From the release notes...

R54 is a bugfix release with moderate new features:

[tg] Simplify and improve code and manual page
[tg] Try GCC 5’s new -malign-data=abi
[tg] Allow interrupting builtin cat even on fast devices (LP#1616692)
[tg] Update to Unicode 9.0.0
[Andreas Buschka] Correct English spelling
[tg] Handle set -e-related error propagation in || and && constructs correctly
[tg] Initialise memory for RNG even when not targeting Valgrind
[tg] Shrink binary size
[Brian Callahan] Improve support for the contemporary pcc compiler
[tg] Fix side effects with lazy evaluation; spotted by ormaaj
[tg] New flags -c (columnise), -l, -N for the print builtin
[Larry Hynes] Fix English, spelling mistakes, typos in the manpage
[tg, ormaah] Return 128+SIGALRM if read -t times out, like GNU bash
[Martijn Dekker] Install both manpages from Build.sh
[Martijn Dekker] Document case changes are ASCII-only
[Ronald G. Minnich, Elbing Miss, Álvaro Jurado, tg] Begin porting to Harvey-OS and APEX (similar to Plan 9 and APE)
[KO Myung-Hun] More infrastructure for the OS/2 (EMX, KLIBC) port

I've continued to disable the cat, realpath, and sleep builtins,
and added print to the list (now I've realized it's unrelated to
the print on the desktop).

Bug: N/A
Test: manual
Change-Id: Iead4c1b572c6f288b2ab2b884125dcb606f1e356
Upgrade to mksh R53a. 2016-08-12T22:06:53+00:00 Elliott Hughes enh@google.com 2016-08-12T22:06:53+00:00 77740fcd3dfcd2a78a8ad0ea0f0314dd6b23ecb6 Note that we skipped R52c because it wouldn't build with clang (thanks to the "Shave 200 bytes off .text by revisiting string pooling" change). From the release notes: R53a is a snapshot/feature release: [lintian] Fix spelling [tg] Unbreak multi-line command history broken by history flush [tg] Fix redefining POSIX functions that were Korn functions before [tg, TNF] Fix bounds checks in Vi editing mode [tg] Handle combining characters at end of string or output correctly [tg] Fix ${!#} ${!?} ${!-} (POSIX, prompted by izabera) [tg] Fix shf.c-internal buffer overread on printing digits [J�rg] Fix a typo in the testsuite [arekm] Increase default edit line size (unless MKSH_SMALL) [tg] Improve description of Emacs mode keybindings, especially ^U [tg, arekm, jilles] Abort read builtin in case of read(2) errors [tg, izabera, carstenh] Fix most of the ambiguous corner cases related to ${[pfx]var[op[word]]} (${@:-1} still unsupported) [carstenh] Contribute some more testsuite coverage [tg] WDS_TPUTS now emits QCHAR newline reentrant-safe [tg] Fix var=<< implementation (LP#1380389) [tg, FreeBSD] Make XSI test(1) extensions behave as if they were POSIX [tg, izabera] Add $(<<<x) and $(<<EOF…) implementation [tg] Lower minimum screen size accepted as “sane” from the OS to 4×2 [tg, Torsten Sillke] Simplify tilde-expanded parameters [tg, Torsten Sillke] Fix default PS1 for substring matches [tg] Apply defer-builtin-with-arguments logic to realpath builtin [tg] Rework string pooling (own vs. compiler’s) (LP#1580348) [tg] Feature: print -A, prints arguments as characters [tg, izabera] Replace <<< and >>> as ROL and ROR operators with their new ^< and ^> spelling as per this proposal [tg, slagtc] Clear-to-EOL under tmux to work around its anti-feature [tg, p120ph37] Remove support for using file descriptors with more than a single digit, in preparation for named file descriptors [tg] Correct, but simplify (at the potential cost of more tty I/O than strictly necessary, though never redundant and (probably) not more than before when it was miscalculated), line clearing and redrawing [slagtc, tg] Implement new evaluate-region editing command Esc+Ctrl-E [tg] Prefer external rename utility over the recovery builtin [tg] Remove redundant full-line redraws [tg, Natureshadow] Fix errorlevel of ‘.’ (“dot” special builtin) when the sourced script does not run any commands, for POSIX compliance [tg] Refactor op tokens and edchars to shave off some more bytes [tg] Fix some bugs in the manpage and some occasional/minor code bugs [tg, Brian Callahan] Mark tests requiring new perl as !need-pass [tg, slagtc] Add $KSH_MATCH and, to make it usable, ${foo@/bar/baz} [tg, Score_Under] Fix bogus patch from OpenBSD: only NULL the global source in unwind when actually reclaiming its Area [izabera] Mention in the manpage that integer bases go up to 36 [Natureshadow] Fix /= operator broken during refactoring R52c is a bugfix-only release: [tg] Shave 200 bytes off .text by revisiting string pooling [tg, J�rg] Fix manpage for ditroff on Schillix [tg, wbx] Use sed 1q instead of unportable head(1) [tg] Implement underrun debugging tool for area-based memory allocator [tg] Fix history underrun when first interactive command is entered [tg, bef0rd] Do not misinterpret “${0/}” as “${0//”, fixes segfault [tg, Stéphane Chazelas] Fix display problems with special parameters [tg, Stéphane Chazelas] Catch attempt to trim $* and $@ with ?, fixes segfault (Todd Miller did this in 2004 for ${x[*]} already, so just sync) [Martijn Dekker] Fix “command -p” with -Vv to behave as POSIX requires [tg, jilles, Oleg Bulatov] Fix recusive parser with active heredocs [tg] Flush even syntax-failing or interrupted commands to history [tg, fmunozs] Fix invalid memory access for “'\0'” in arithmetics [tg] Explicitly reserve SIGEXIT and SIGERR for ksh [tg, izabera] Catch missing here documents at EOF even under “set -n” [kre, tg] Document Austin#1015 handling (not considered a violation) [tg, fmunozs] Fix buffer overread for empty nameref targets [tg] Fix warnings pointed out by latest Debian gcc-snapshot [tg, Martijn Dekker] Document upcoming set +o changes [Martijn Dekker] Expand testsuite for command/whence Change-Id: Ife475b25acae5a85277757cfe9f14c6575eac0cd 
Note that we skipped R52c because it wouldn't build with clang (thanks to
the "Shave 200 bytes off .text by revisiting string pooling" change).

From the release notes:

R53a is a snapshot/feature release:

[lintian] Fix spelling
[tg] Unbreak multi-line command history broken by history flush
[tg] Fix redefining POSIX functions that were Korn functions before
[tg, TNF] Fix bounds checks in Vi editing mode
[tg] Handle combining characters at end of string or output correctly
[tg] Fix ${!#} ${!?} ${!-} (POSIX, prompted by izabera)
[tg] Fix shf.c-internal buffer overread on printing digits
[J�rg] Fix a typo in the testsuite
[arekm] Increase default edit line size (unless MKSH_SMALL)
[tg] Improve description of Emacs mode keybindings, especially ^U
[tg, arekm, jilles] Abort read builtin in case of read(2) errors
[tg, izabera, carstenh] Fix most of the ambiguous corner cases related to ${[pfx]var[op[word]]} (${@:-1} still unsupported)
[carstenh] Contribute some more testsuite coverage
[tg] WDS_TPUTS now emits QCHAR newline reentrant-safe
[tg] Fix var=<< implementation (LP#1380389)
[tg, FreeBSD] Make XSI test(1) extensions behave as if they were POSIX
[tg, izabera] Add $(<<<x) and $(<<EOF…) implementation
[tg] Lower minimum screen size accepted as “sane” from the OS to 4×2
[tg, Torsten Sillke] Simplify tilde-expanded parameters
[tg, Torsten Sillke] Fix default PS1 for substring matches
[tg] Apply defer-builtin-with-arguments logic to realpath builtin
[tg] Rework string pooling (own vs. compiler’s) (LP#1580348)
[tg] Feature: print -A, prints arguments as characters
[tg, izabera] Replace <<< and >>> as ROL and ROR operators with their new ^< and ^> spelling as per this proposal
[tg, slagtc] Clear-to-EOL under tmux to work around its anti-feature
[tg, p120ph37] Remove support for using file descriptors with more than a single digit, in preparation for named file descriptors
[tg] Correct, but simplify (at the potential cost of more tty I/O than strictly necessary, though never redundant and (probably) not more than before when it was miscalculated), line clearing and redrawing
[slagtc, tg] Implement new evaluate-region editing command Esc+Ctrl-E
[tg] Prefer external rename utility over the recovery builtin
[tg] Remove redundant full-line redraws
[tg, Natureshadow] Fix errorlevel of ‘.’ (“dot” special builtin) when the sourced script does not run any commands, for POSIX compliance
[tg] Refactor op tokens and edchars to shave off some more bytes
[tg] Fix some bugs in the manpage and some occasional/minor code bugs
[tg, Brian Callahan] Mark tests requiring new perl as !need-pass
[tg, slagtc] Add $KSH_MATCH and, to make it usable, ${foo@/bar/baz}
[tg, Score_Under] Fix bogus patch from OpenBSD: only NULL the global source in unwind when actually reclaiming its Area
[izabera] Mention in the manpage that integer bases go up to 36
[Natureshadow] Fix /= operator broken during refactoring

R52c is a bugfix-only release:

[tg] Shave 200 bytes off .text by revisiting string pooling
[tg, J�rg] Fix manpage for ditroff on Schillix
[tg, wbx] Use sed 1q instead of unportable head(1)
[tg] Implement underrun debugging tool for area-based memory allocator
[tg] Fix history underrun when first interactive command is entered
[tg, bef0rd] Do not misinterpret “${0/}” as “${0//”, fixes segfault
[tg, Stéphane Chazelas] Fix display problems with special parameters
[tg, Stéphane Chazelas] Catch attempt to trim $* and $@ with ?, fixes segfault (Todd Miller did this in 2004 for ${x[*]} already, so just sync)
[Martijn Dekker] Fix “command -p” with -Vv to behave as POSIX requires
[tg, jilles, Oleg Bulatov] Fix recusive parser with active heredocs
[tg] Flush even syntax-failing or interrupted commands to history
[tg, fmunozs] Fix invalid memory access for “'\0'” in arithmetics
[tg] Explicitly reserve SIGEXIT and SIGERR for ksh
[tg, izabera] Catch missing here documents at EOF even under “set -n”
[kre, tg] Document Austin#1015 handling (not considered a violation)
[tg, fmunozs] Fix buffer overread for empty nameref targets
[tg] Fix warnings pointed out by latest Debian gcc-snapshot
[tg, Martijn Dekker] Document upcoming set +o changes
[Martijn Dekker] Expand testsuite for command/whence

Change-Id: Ife475b25acae5a85277757cfe9f14c6575eac0cd
Upgrade to mksh R52b. 2016-02-02T23:26:47+00:00 Elliott Hughes enh@google.com 2016-02-02T23:26:47+00:00 fc0307d88e2ab13777f102dc63c0d1c968dc8bb2 From the release notes: R52b is a strongly recommended bugfix-only release: [tg] Recognise ksh93 compiled scripts and LZIP compressed files as binary (i.e. to not run as mksh plaintext script) [tg] Document that we will implement locale tracking later [tg] Add EEXIST to failback strerror(3) [jilles] Make set -C; :>foo race-free [tg] Don’t use unset in portable build script [tg] Plug warning on GNU/kFreeBSD, GNU/Hurd [tg] Document read -a resets the integer base [J�rg] Fix manpage: time is not a builtin but a reserved word [J�rg, tg] Make exit (and return) eat -1 [tg] parse “$( (( … ) … ) … )” correctly (LP#1532621), Jan Palus [tg] reduce memory footprint by free(3)ing more aggressively [tg] fix buffer overrun (LP#1533394), bugreport by izabera [tg] correctly handle nested ADELIM parsing (LP#1453827), Teckids [tg] permit “read -A/-a arr[idx]” as long as only one element is read; fix corruption of array indicēs with this construct (LP#1533396), izabera [tg] Sanitise OS-provided signal number in even more places [tg] As requested by J�rg, be clear manpage advice is for mksh [tg] Revert (as it was a regression) POSIX bugfix from R52/2005 related to accent gravis-style command substitution until POSIX decides either way [tg] Handle export et al. after command (Austin#351) [tg] Catch EPIPE in built-in cat and return as SIGPIPE (LP#1532621) [tg] Fix errno in print/echo builtin; optimise that and unbksl [tg] Update documentation, point out POSIX violation (Austin#1015) R52 is a strongly recommended bugfix release: [_0bitcount] Move moving external link from mksh(1) to the #ksh channel homepage linked therein [tg] Make setenv “set -u”-safe and fix when invoked with no args [tg] Make “typeset -f” output reentrant if name is a reserved word [oksh] Zero-pad seconds in “time” output to align columns [tg] Check signals and errorlevels from OS to be within bounds [komh, tg] Quote and document ‘;’ as PATH separator in some places [oksh, tg] Simplify code to call afree() even if arg is NULL [tg] Fix tree-printing and reentrancy of multiple here documents [tg] Work around LP#1030581 by permitting exactly one space after [tg, oksh] Code quality work, cleanups [tg] New code for here documents/strings with several bugfixes [tg] Stop using issetugid(2) for ±p checks, wrong tool for the job [tg] Reintroduce some -o posix changes lost in 2005, plus fixes [tg] Make “source” into a built-in command [tg] Drop “stop” alias, lksh(1) functionality to auto-unalias [tg] Fix \u0000 ignored in $'…' and print [tg] Improve portability of Build.sh [Jilles Tjoelker] Improve portability of testsuite [tg] Fix tilde expansion for some substitutions (izabera, Chet, Geoff) [tg] Improve reparsing of ((…) |…) as ( (…) |…) [Martijn Dekker] Fix test(1) not returning evaluation errors [tg] Fix ${*:+x} constructs (carstenh) [tg] Make (( … )) into a compound command (ormaaj) [tg] Repair a few parameter substitution expansion mistakes Change-Id: I3d875b5c648c60cc6203c964f11d8cbd42648d9c 
From the release notes:

R52b is a strongly recommended bugfix-only release:

[tg] Recognise ksh93 compiled scripts and LZIP compressed files as binary (i.e. to not run as mksh plaintext script)
[tg] Document that we will implement locale tracking later
[tg] Add EEXIST to failback strerror(3)
[jilles] Make set -C; :>foo race-free
[tg] Don’t use unset in portable build script
[tg] Plug warning on GNU/kFreeBSD, GNU/Hurd
[tg] Document read -a resets the integer base
[J�rg] Fix manpage: time is not a builtin but a reserved word
[J�rg, tg] Make exit (and return) eat -1
[tg] parse “$( (( … ) … ) … )” correctly (LP#1532621), Jan Palus
[tg] reduce memory footprint by free(3)ing more aggressively
[tg] fix buffer overrun (LP#1533394), bugreport by izabera
[tg] correctly handle nested ADELIM parsing (LP#1453827), Teckids
[tg] permit “read -A/-a arr[idx]” as long as only one element is read; fix corruption of array indicēs with this construct (LP#1533396), izabera
[tg] Sanitise OS-provided signal number in even more places
[tg] As requested by J�rg, be clear manpage advice is for mksh
[tg] Revert (as it was a regression) POSIX bugfix from R52/2005 related to accent gravis-style command substitution until POSIX decides either way
[tg] Handle export et al. after command (Austin#351)
[tg] Catch EPIPE in built-in cat and return as SIGPIPE (LP#1532621)
[tg] Fix errno in print/echo builtin; optimise that and unbksl
[tg] Update documentation, point out POSIX violation (Austin#1015)

R52 is a strongly recommended bugfix release:

[_0bitcount] Move moving external link from mksh(1) to the #ksh channel homepage linked therein
[tg] Make setenv “set -u”-safe and fix when invoked with no args
[tg] Make “typeset -f” output reentrant if name is a reserved word
[oksh] Zero-pad seconds in “time” output to align columns
[tg] Check signals and errorlevels from OS to be within bounds
[komh, tg] Quote and document ‘;’ as PATH separator in some places
[oksh, tg] Simplify code to call afree() even if arg is NULL
[tg] Fix tree-printing and reentrancy of multiple here documents
[tg] Work around LP#1030581 by permitting exactly one space after
[tg, oksh] Code quality work, cleanups
[tg] New code for here documents/strings with several bugfixes
[tg] Stop using issetugid(2) for ±p checks, wrong tool for the job
[tg] Reintroduce some -o posix changes lost in 2005, plus fixes
[tg] Make “source” into a built-in command
[tg] Drop “stop” alias, lksh(1) functionality to auto-unalias
[tg] Fix \u0000 ignored in $'…' and print
[tg] Improve portability of Build.sh
[Jilles Tjoelker] Improve portability of testsuite
[tg] Fix tilde expansion for some substitutions (izabera, Chet, Geoff)
[tg] Improve reparsing of ((…) |…) as ( (…) |…)
[Martijn Dekker] Fix test(1) not returning evaluation errors
[tg] Fix ${*:+x} constructs (carstenh)
[tg] Make (( … )) into a compound command (ormaaj)
[tg] Repair a few parameter substitution expansion mistakes

Change-Id: I3d875b5c648c60cc6203c964f11d8cbd42648d9c
Upgrade to mksh 51. 2015-07-17T18:44:21+00:00 Elliott Hughes enh@google.com 2015-07-17T18:39:41+00:00 96b43632c2aa206ac1ec0eb70b34847d58d52633 Bug: http://b/22413333 Change-Id: Id86d5bf463af540b84d03a7b8fe092d23702f414 
Bug: http://b/22413333
Change-Id: Id86d5bf463af540b84d03a7b8fe092d23702f414
Upgrade to mksh 50f. 2015-04-21T20:39:18+00:00 Elliott Hughes enh@google.com 2015-04-21T20:39:18+00:00 b27ce95e41e941ad22b3dc392d8328251d3a057e Bug: http://b/20101805 Change-Id: Ic311851b31217517f6c201b5ec68a0668577eddf 
Bug: http://b/20101805
Change-Id: Ic311851b31217517f6c201b5ec68a0668577eddf
Apparently not all our toolchains have -fstack-protector-strong yet. 2015-03-11T17:27:23+00:00 Elliott Hughes enh@google.com 2015-03-11T17:27:23+00:00 a64e43f4eb2f51b29fe1c9109e34bbe40efc35df Change-Id: Ieaf13c9d402a6f1bc13c393de9aa965a4e7a845d 
Change-Id: Ieaf13c9d402a6f1bc13c393de9aa965a4e7a845d