[ruby-trunk - Feature #8469][Open] ABI checker とか導入しませんか

addis_a · June 1, 2013, 7:43am

Issue #8469 has been reported by kosaki (Motohiro KOSAKI).

Feature #8469: ABI checker とか導入しませんか
https://bugs.ruby-lang.org/issues/8469

Author: kosaki (Motohiro KOSAKI)
Status: Open
Priority: Normal
Assignee:
Category:
Target version:

最近 Vit が報告してきたように、193にもたまにABI非互換が入っているようです。
見たところ実害はなさそうなのですが、非互換が報告されてから実害の有無を検討するのは不毛なのでパッチリリース前に
機械的にチェックしたいですよね。ほとんどのケースは意図的な非互換だからOKという結論になるのだろうとは思いますが、
精神衛生上、枕を高くして寝れる度がちょっとだけ上がります。

で、ちょっと時間をとってみたところ、意外と簡単そう。

http://ispras.linuxbase.org/index.php/ABI_compliance_checker にある、ABI
checkerと
https://github.com/kosaki/ruby/commit/e27c2e5f1e3c7a6fc2fe8b997e95a1e52f0beed3
のパッチをダウンロードして

./ruby …/tool/abi-checker.rb ~/local/ruby-193p0 ~/local/ruby-193

とすると、スクリーンショットのような結果が得られます。
193p0とくらべて最新の193ブランチは

rb_class_init_copy ( VALUE p1, VALUE p2 )
rb_path_end ( char const* p1 )
rb_path_last_separator ( char const* p1 )
rb_path_next ( char const* p1 )
rb_path_skip_prefix ( char const* p1 )
ruby_find_basename ( char const* name, long* baselen, long* alllen )
ruby_find_extname ( char const* name, long* len )

の７つのシンボルが消えてしまっているわけですね。
基本的に現在パッチリリースをしているのって世の中に三人しかいないので、うささん、ながちかさん、うらべさんの意見を聞きたい
ところですが、どうでしょうか。

kosaki_SMotohiro_KO · June 4, 2013, 7:00am

Issue #8469 has been updated by usa (Usaku NAKAMURA).

CIに組み込んでもらえるとちょー助かる感じですぅ

Feature #8469: ABI checker とか導入しませんか
https://bugs.ruby-lang.org/issues/8469#change-39683

Author: kosaki (Motohiro KOSAKI)
Status: Open
Priority: Normal
Assignee:
Category:
Target version:

最近 Vit が報告してきたように、193にもたまにABI非互換が入っているようです。
見たところ実害はなさそうなのですが、非互換が報告されてから実害の有無を検討するのは不毛なのでパッチリリース前に
機械的にチェックしたいですよね。ほとんどのケースは意図的な非互換だからOKという結論になるのだろうとは思いますが、
精神衛生上、枕を高くして寝れる度がちょっとだけ上がります。

で、ちょっと時間をとってみたところ、意外と簡単そう。

http://ispras.linuxbase.org/index.php/ABI_compliance_checker にある、ABI
checkerと
https://github.com/kosaki/ruby/commit/e27c2e5f1e3c7a6fc2fe8b997e95a1e52f0beed3
のパッチをダウンロードして

./ruby …/tool/abi-checker.rb ~/local/ruby-193p0 ~/local/ruby-193

とすると、スクリーンショットのような結果が得られます。
193p0とくらべて最新の193ブランチは

rb_class_init_copy ( VALUE p1, VALUE p2 )
rb_path_end ( char const* p1 )
rb_path_last_separator ( char const* p1 )
rb_path_next ( char const* p1 )
rb_path_skip_prefix ( char const* p1 )
ruby_find_basename ( char const* name, long* baselen, long* alllen )
ruby_find_extname ( char const* name, long* len )

の７つのシンボルが消えてしまっているわけですね。
基本的に現在パッチリリースをしているのって世の中に三人しかいないので、うささん、ながちかさん、うらべさんの意見を聞きたい
ところですが、どうでしょうか。

kosaki_SMotohiro_KO · June 4, 2013, 7:28am

2013$BG/(B6$B7n(B4$BF|(B 14:23 KOSAKI Motohiro
[email protected]:

CI $B$C$FC/$KAjCL$9$l$P$$$$$s$G$9$+$M!#:#$N%D!<%[email protected]$HHf3SBP>]$N%P%$%J%j$^$?$O(B

ABI$B>pJs$r$V$C$3$L$$$?(BXML$B%U%!%$%k72$r(Btar$B%"!<%+%$%V$7$?$b$N$rHf3SBP>]$H$7$F(B

$B$I$3$+$K$$$$F$$+$J$$$H$$$1$J$/$F!"([email protected]$H(Bp0$B$+$i$O$b$&:90[$,$"$k$N$O$o$+$C$F$k$N$G(B

$B:G?7$N%Q%C%A%j%j!<%9$r(BCI$B$KCV$-$?$$$H$3$m$J$s$G$9$1$I!#(B

$BC/$K!"$H$$$o$l$k$H(B chkbuild $B$K4X$7$F$O;d$G$7$g$&$,!"(B
$B8e$G$A$g$C$H8+$F$_$^$9!#(B

$BHf3SBP>]$rMQ0U$7$J$$$H$$$1$J$$$N$,LLE]$/$5$=$&$G$[$C$?$i$+$7$F$?$s$G$9$,!#(B

kosaki_SMotohiro_KO · June 4, 2013, 7:23am

CI$B$KAH$_9~$s$G$b$i$($k$H$A$g!<=u$+$k46$8$G$9$%(B

CI
$B$C$FC/$KAjCL$9$l$P$$$$$s$G$9$+$M!#:#$N%D!<%[email protected]$HHf3SBP>]$N%P%$%J%j$^$?$O(B
ABI$B>pJs$r$V$C$3$L$$$?(BXML$B%U%!%$%k72$r(Btar$B%"!<%+%$%V$7$?$b$N$rHf3SBP>]$H$7$F(B
$B$I$3$+$K$$$$F$$+$J$$$H$$$1$J$/$F!"([email protected]$H(Bp0$B$+$i$O$b$&:90[$,$"$k$N$O$o$+$C$F$k$N$G(B
$B:G?7$N%Q%C%A%j%j!<%9$r(BCI$B$KCV$-$?$$$H$3$m$J$s$G$9$1$I!#(B

kosaki_SMotohiro_KO · June 4, 2013, 8:26am

CI $B$C$FC/$KAjCL$9$l$P$$$$$s$G$9$+$M!#:#$N%D!<%[email protected]$HHf3SBP>]$N%P%$%J%j$^$?$O(B

ABI$B>pJs$r$V$C$3$L$$$?(BXML$B%U%!%$%k72$r(Btar$B%"!<%+%$%V$7$?$b$N$rHf3SBP>]$H$7$F(B

$B$I$3$+$K$$$$F$$+$J$$$H$$$1$J$/$F!"([email protected]$H(Bp0$B$+$i$O$b$&:90[$,$"$k$N$O$o$+$C$F$k$N$G(B

$B:G?7$N%Q%C%A%j%j!<%9$r(BCI$B$KCV$-$?$$$H$3$m$J$s$G$9$1$I!#(B

$BC/$K!"$H$$$o$l$k$H(B chkbuild $B$K4X$7$F$O;d$G$7$g$&$,!"(B
$B8e$G$A$g$C$H8+$F$_$^$9!#(B

$BHf3SBP>]$rMQ0U$7$J$$$H$$$1$J$$$N$,LLE]$/$5$=$&$G$[$C$?$i$+$7$F$?$s$G$9$,!#(B

$B$=$l$,<u$1F~$l$i$l$J$$$H$9$k$H(Bglibc
$B$_$?$$$K8x3+$9$k%7%s%%k$rA4ItJL%U%!%$%k$K5-=R$5$;$F!"(B
make tests
$B$N2>Dj$GFM$-9g$o$;$r$9$k$H$$$&=hM}$r$9$k$3$H$K$J$j$=$&$G$9$,!"$3$l$O7k9=(B
$B$a$s$I$/$5$$$G$9!#@5D>$J$H$3$m!#(B

e.g.
http://sourceware.org/git/?p=glibc.git;a=blob;f=malloc/Versions;h=7ca9bdf25fcafdf2b01080d972bbde755a4f8108;hb=HEAD

$B4D6-JQ?t$GHf3SBP>]$N(Bruby$B$N%Q%9$,[email protected]<($5$l$F$?$H$-$N$_!“Hf3S$7$F7k2L$rI=<(!#[email protected]$H0lHL$N(B
chkbuild$B%f!<%6!<$X$NLBOG$,$9$/$J$$$+$J$”!#(B

kosaki_SMotohiro_KO · June 5, 2013, 3:41am

2013$BG/(B6$B7n(B4$BF|(B 15:26 KOSAKI Motohiro
[email protected]:

$BHf3SBP>]$rMQ0U$7$J$$$H$$$1$J$$$N$,LLE]$/$5$=$&$G$[$C$?$i$+$7$F$?$s$G$9$,!#(B

$B$=$l$,<u$1F~$l$i$l$J$$$H$9$k$H(Bglibc
$B$_$?$$$K8x3+$9$k%7%s%%k$rA4ItJL%U%!%$%k$K5-=R$5$;$F!"(B

$BJL$K<u$1F~$l$i$l$J$$$3$H$O$J$/$F!"$*$C$/$&!"$/$i$$$N46$8$G$9!#(B

$B$G!";n$7$F$$?$s$G$9$,!"(B–enable-shared $B$,I,MW$J$h$&$G$9$M!#(B
$B$^$!$=$l$O$D$1$k$H$7$F!"G:$$I$3$m$O=PNO$+$J$!!#(B

$B:#$OI8==PNO$K?b$lN.$7$?$N$r$R$H$D$N%U%!%$%k$H$7$F5-O?$7$F$$$k$N$G$9$,!"(B HTML $B%U%!%$%k$r$=$N$^$^I8==PNO$K=P$9$N$O$h$m$7$/$J$$$G$9$h$M!#(B

chkbuild $BE*$K4JC1$J$N$O(B w3m
$B$"$?$j$G%F%-%9%H$K$7$FI8=`=PNO$K=P$7$F$7$^$&$H$$$&$"$?$j$G$9$,!#(B

kosaki_SMotohiro_KO · June 5, 2013, 8:29pm

$BHf3SBP>]$rMQ0U$7$J$$$H$$$1$J$$$N$,LLE]$/$5$=$&$G$[$C$?$i$+$7$F$?$s$G$9$,!#(B

$B$=$l$,<u$1F~$l$i$l$J$$$H$9$k$H(Bglibc
$B$_$?$$$K8x3+$9$k%7%s%%k$rA4ItJL%U%!%$%k$K5-=R$5$;$F!"(B

$BJL$K<u$1F~$l$i$l$J$$$3$H$O$J$/$F!"$*$C$/$&!"$/$i$$$N46$8$G$9!#(B

$B$J$k$[$I!#$8$c$"!"$$$A$I:#Ds0F$7$F$$$kHf3SJ}<0$GAv$C$F$_$FLdBj$,B?$$$h$&$J$i(B
$B:[email protected]$H$$$&$3$H$G!#(B

$B$G!";n$7$F$_$?$s$G$9$,!"(B–enable-shared $B$,I,MW$J$h$&$G$9$M!#(B

$B$9$$$^$;$s!"A02s$N%a!<%k$G=q$-K:$l$^$7$?!#(B

$B$^$!$=$l$O$D$1$k$H$7$F!"G:$_$I$3$m$O=PNO$+$J$!!#(B

$B:#$OI8==PNO$K?b$lN.$7$?$N$r$R$H$D$N%U%!%$%k$H$7$F5-O?$7$F$$$k$N$G$9$,!"(B HTML $B%U%!%$%k$r$=$N$^$^I8==PNO$K=P$9$N$O$h$m$7$/$J$$$G$9$h$M!#(B

chkbuild $BE*$K4JC1$J$N$O(B w3m
$B$"$?$j$G%F%-%9%H$K$7$FI8=`=PNO$K=P$7$F$7$^$&$H$$$&$"$?$j$G$9$,!#(B

abi-checker$B$N%3%^%s%I$O(Bxml$B=PNO$r%5%]!<%H$7$F$k$N$G!“Mh=5$+:FMh=5;~4V$,$H$l$?$H$-$K!”$=$3$+$i%W%l%$%s%F%-%9%H$KJQ49$9$k%9%/%j%W%H=q$$$F$_$^$9!#(B
$B$H$3$m$G!"$$$^(B rubyci.org$B$G$O(B test-all
$B$,(B0F0E$B0J30$N$H$-$O(B 1F2E
$B$H$+$N?t;zI=<($H%F!<%V%k$N?'JQ99$,%5%^%j!<2hLL$N%F!<%V%k$KI=<($5$l$F$^$9$,!"$3$l$O(B
test-all $B$+$i(B
grep$B$7$F$k$H$$$&M}2r$G$"$C$F$^$9$+!)(B

ABI incompatible summary: nAnRnHnMnL

n: $B?t;z!"#0$G$"$k$Y$-(B
A: add
R: remove
H: $B=EMWEY(BHigh$B$NJQ99(B
M: $B=EMWEY(BMiddle$B$NJQ99(B
L: $B=EMWEY(BLow$B$NJQ99(B

[email protected],$N$[$&$KMQ0U$7$?$iF1$8$h$&$K?t;z$,(B0$B0J30$N$H$-$K%F!<%V%k$,@V$/$J$k$H$+=PMh$^$9!)(B

kosaki_SMotohiro_KO · June 6, 2013, 5:42pm

2013$BG/(B6$B7n(B6$BF|(B 3:29 KOSAKI Motohiro
[email protected]:

$B$^$!$=$l$O$D$1$k$H$7$F!"G:$_$I$3$m$O=PNO$+$J$!!#(B

$B:#$OI8==PNO$K?b$lN.$7$?$N$r$R$H$D$N%U%!%$%k$H$7$F5-O?$7$F$$$k$N$G$9$,!"(B HTML $B%U%!%$%k$r$=$N$^$^I8==PNO$K=P$9$N$O$h$m$7$/$J$$$G$9$h$M!#(B

chkbuild $BE*$K4JC1$J$N$O(B w3m
$B$"$?$j$G%F%-%9%H$K$7$FI8=`=PNO$K=P$7$F$7$^$&$H$$$&$"$?$j$G$9$,!#(B

$B$H$j$"$($:!"(Bw3m [email protected]$7$F$D$1$F$_$^$7$?!#(B

http://www.rubyist.net/~akr/chkbuild/debian/ruby-1.9.3/log/20130606T142542Z.log.html.gz#abi-check
http://www.rubyist.net/~akr/chkbuild/debian/ruby-2.0.0/log/20130606T134647Z.log.html.gz#abi-check
http://www.rubyist.net/~akr/chkbuild/debian/ruby-trunk/log/20130606T130700Z.log.html.gz#abi-check

1.9.3 $B$H(B 2.0.0 $B$O$=$l$>$l$N(B p0 $B$H$NHf3S$G$9!#(B
$B$D$$$G$K(B trunk $B$O(B 2.0.0p0 $B$HHf3S$7$F$_$^$7$?!#(B
(1.8.7 $B$O$=$m$=$m=*$o$k$O$:$J$N$G$d$C$F$^$;$s(B)

abi-checker$B$N%3%^%s%I$O(Bxml$B=PNO$r%5%]!<%H$7$F$k$N$G!“Mh=5$+:FMh=5;~4V$,$H$l$?$H$-$K!”$=$3$+$i%W%l%$%s%F%-%9%H$KJQ49$9$k%9%/%j%W%H=q$$$F$_$^$9!#(B

$B$H$3$m$G!"$$$^(B rubyci.org$B$G$O(B test-all $B$,(B0F0E$B0J30$N$H$-$O(B 1F2E

$B$H$+$N?t;zI=<($H%F!<%V%k$N?'JQ99$,%5%^%j!<2hLL$N%F!<%V%k$KI=<($5$l$F$^$9$,!"$3$l$O(B
test-all $B$+$i(B

grep$B$7$F$k$H$$$&M}2r$G$"$C$F$^$9$+!)(B

$B=PNO$+$i9TC10L$K%Q%?!<%s%^%C%A$7$FH4$-=P$7$F$^$9!#(B
Ruby
$B$G=q$$$F$"$k$N$G!“A}$d$7$?$j$J$s$J$j$O$=$s$J$K$`$:$+$7$/$O$”$j$^$;$s!#(B
([email protected]$7!“9TC10L$G$=$N9T$rG’<1$G$-$kI,MW$,$”$j$^$9(B)

ABI incompatible summary: nAnRnHnMnL

n: $B?t;z!"#0$G$"$k$Y$-(B
A: add
R: remove
H: $B=EMWEY(BHigh$B$NJQ99(B
M: $B=EMWEY(BMiddle$B$NJQ99(B
L: $B=EMWEY(BLow$B$NJQ99(B

[email protected],$N$[$&$KMQ0U$7$?$iF1$8$h$&$K?t;z$,(B0$B0J30$N$H$-$K%F!<%V%k$,@V$/$J$k$H$+=PMh$^$9!)(B

$BH4$-=P$7$F%?%$%H%k$J$I$K$D$1$k$N$O$G$-$k$H;W$$$^$9!#(B
$B%?%$%H%k$O(B recent.html $B$N0l9T$K$b$J$j!"(Brubyci.org $B$O(B
recent.html $B$rFI$s$G$$$k$N$G!"(B
rubyci.org $B$^$G>pJs$OFO$-$^$9!#(B

[email protected]$/$J$k$+$I$&$+$O$h$/$o$+$j$^$;$s!#(B
$B$I$&$d$C$F?’$,JQ$o$C$F$$$k$+M}2r$7$F$$$J$$$N$G!#(B
$B$H$$$&$+(B HTML
$B$rFI$s$G$b?’$,$I$&$d$C$F$D$$$F$$$k$N$+$o$+$i$J$$$N$G$9!#(B
($B$J$k$;$5$s$O$J$s$+(B CSS
$B$G$,[email protected]$C$F$F$$$?$h$&$J5$$,$7$^$9(B)

kosaki_SMotohiro_KO · June 7, 2013, 5:32am

(13/06/07 0:42), Tanaka A. wrote:

http://www.rubyist.net/~akr/chkbuild/debian/ruby-trunk/log/20130606T130700Z.log.html.gz#abi-check

1.9.3 $B$H(B 2.0.0 $B$O$=$l$>$l$N(B p0 $B$H$NHf3S$G$9!#(B
$B$D$$$G$K(B trunk $B$O(B 2.0.0p0 $B$HHf3S$7$F$_$^$7$?!#(B

confname.h$B$H$$$&%U%!%$%k$GBgNL$K=P$F$$$k$h$&$J$s$G$9$,!"$3$l$O2?$G$7$?$C$1!#(B

kosaki_SMotohiro_KO · June 7, 2013, 7:39am

2013$BG/(B6$B7n(B7$BF|(B 12:31 Nobuyoshi N. [email protected]:

confname.h$B$H$$$&%U%!%$%k$GBgNL$K=P$F$$$k$h$&$J$s$G$9$,!"$3$l$O2?$G$7$?$C$1!#(B

/usr/include/bits/confname.h $B$C$]$$$G$9$,!"$J$s$G$9$+$M$’!#(B

kosaki_SMotohiro_KO · June 6, 2013, 7:08pm

2013/6/6 Tanaka A. [email protected]:

http://www.rubyist.net/~akr/chkbuild/debian/ruby-1.9.3/log/20130606T142542Z.log.html.gz#abi-check

http://www.rubyist.net/~akr/chkbuild/debian/ruby-2.0.0/log/20130606T134647Z.log.html.gz#abi-check

http://www.rubyist.net/~akr/chkbuild/debian/ruby-trunk/log/20130606T130700Z.log.html.gz#abi-check

1.9.3 $B$H(B 2.0.0 $B$O$=$l$>$l$N(B p0 $B$H$NHf3S$G$9!#(B
$B$D$$$G$K(B trunk $B$O(B 2.0.0p0 $B$HHf3S$7$F$_$^$7$?!#(B
(1.8.7 $B$O$=$m$=$m=*$o$k$O$:$J$N$G$d$C$F$^$;$s(B)

$B$&$r!#$J$s$H!"$b$&$G$-$?$H$O!#$b$&$3$l$G$$$$$8$c$s!*=PNOA[A|$7$F$?$h$j$b(B
$B$:$C$He:[email protected]$7!#(B

kosaki_SMotohiro_KO · June 7, 2013, 9:36pm

$BF~$l$?(B commit:
https://github.com/akr/chkbuild/commit/8fbf082a694938604a8d8275172f3de3284058d6

$B$"$k$$$O(B abi-checker.rb $B$O(B ruby $BK\BN$KF~$l$kA[Dj$J$N$+$J$!!#(B
$B:#$+$i(B 1.9.3 $B$d(B 2.0.0 $B%V%i%s%A$KF~$l$k$N$+$H$$$&OC$O$"$j$^$9$,!#(B

$B:G=i!"(Bchkbuild$B$KAH$_9~$`$H$3$m$^$G!"9M$($F$J$/$F(BRuby$B$KF~$l$F<jF0$G<B9T$9$k%$%a!<%[email protected]$C$?$s$G$9$,!"[email protected]$i$+$K(Bchkbuild$B$N$[$&$,;H$$>!<j$,$h$$$N$G(Bakr$B$5$s$,$h$m$7$1$l$P(B
chkbuild$B$N%D%j!<[email protected]$-$?$$$G$9!#%i%$%;%s%9$O(B
chkbuild$BK\BN$HF1$8$G!#(B

kosaki_SMotohiro_KO · June 7, 2013, 7:47am

2013$BG/(B6$B7n(B7$BF|(B 2:08 KOSAKI Motohiro
[email protected]:

1.9.3 $B$H(B 2.0.0 $B$O$=$l$>$l$N(B p0 $B$H$NHf3S$G$9!#(B
$B$D$$$G$K(B trunk $B$O(B 2.0.0p0 $B$HHf3S$7$F$_$^$7$?!#(B
(1.8.7 $B$O$=$m$=$m=*$o$k$O$:$J$N$G$d$C$F$^$;$s(B)

$B$&$r!#$J$s$H!"$b$&$G$-$?$H$O!#$b$&$3$l$G$$$$$8$c$s!*=PNOA[A|$7$F$?$h$j$b(B
$B$:$C$He:[email protected]$7!#(B

$B$=$&$$$($P!"$3$l$N$?$a$K$3$5$-$5$s$,=q$$$?(B
https://github.com/kosaki/ruby/commit/e27c2e5f1e3c7a6fc2fe8b997e95a1e52f0beed3
$B$N(B abi-checker.rb $B$r(B chkbuild $B$KF~$l$?$s$G$9$,!"(B
chkbuild $B$,[email protected](BBSD$B%i%$%;%s%9$J$N$G!"(Babi-checker.rb
[email protected](BBSD$B%i%$%;%s%9$G$$$$$G$7$g$&$+(B?

$BF~$l$?(B commit:
https://github.com/akr/chkbuild/commit/8fbf082a694938604a8d8275172f3de3284058d6

$B$"$k$$$O(B abi-checker.rb $B$O(B ruby $BK\BN$KF~$l$kA[Dj$J$N$+$J$!!#(B
$B:#$+$i(B 1.9.3 $B$d(B 2.0.0
$B%V%i%s%A$KF~$l$k$N$+$H$$$&OC$O$"$j$^$9$,!#(B

kosaki_SMotohiro_KO · June 7, 2013, 10:25pm

confname.h$B$H$$$&%U%!%$%k$GBgNL$K=P$F$$$k$h$&$J$s$G$9$,!"$3$l$O2?$G$7$?$C$1!#(B

/usr/include/bits/confname.h $B$C$]$$$G$9$,!"$J$s$G$9$+$M$’!#(B

trunk [email protected]$H!"(Bdefines.h$B$,(Bunistd.h
$B$r(Binclude$B$9$k$h$&$K$J$C$?$N$G!"(BC$B3HD%$+$i$_$k$H(B
ruby.h
$B$r%$%s%/%k!<%I$7$?;~$KDj5A$5$l$k(BSymbol$B$,A}$($F$$$k$H$$$&[email protected]$H;W$$$^$9!#(B

$B$3$N$X$s$N(B Severity rank$B$,$D$$$F$$$J$$!"(BOther changes
$B$O$"$s$^$j5$$K$7$J$/$F$$$$$s$8$c$J$$$+$J!#$I$N$_$A>WFM$9$k$N$O(BC$B%3!<%I$,(B
_
$B;O$^$j$N%7%s%%k$r;H$C$F$$$?;[email protected]$1$G!"$=$l$O<+J,$NB-$r7b$D<+M3$H$$$&$d$D$J$N$G!#(B

$BJ6$i$o$7$$$+$i>C$;$H$$$&0U8+$,$?$/$5$sMh$?$i!"$I$C$+$K;~4V<h$C$F%9%/%j%W%H=q$-$^$9(B

kosaki_SMotohiro_KO · June 7, 2013, 10:59pm

2013$BG/(B6$B7n(B8$BF|(B 4:36 KOSAKI Motohiro
[email protected]:

$B$"$k$$$O(B abi-checker.rb $B$O(B ruby $BK\BN$KF~$l$kA[Dj$J$N$+$J$!!#(B
$B:#$+$i(B 1.9.3 $B$d(B 2.0.0 $B%V%i%s%A$KF~$l$k$N$+$H$$$&OC$O$"$j$^$9$,!#(B

$B:G=i!"(Bchkbuild$B$KAH$_9~$`$H$3$m$^$G!"9M$($F$J$/$F(BRuby$B$KF~$l$F<jF0$G<B9T$9$k%$%a!<%[email protected]$C$?$s$G$9$,!"[email protected]$i$+$K(Bchkbuild$B$N$[$&$,;H$$>!<j$,$h$$$N$G(Bakr$B$5$s$,$h$m$7$1$l$P(B

chkbuild$B$N%D%j!<[email protected]$-$?$$$G$9!#%i%$%;%s%9$O(B
chkbuild$BK\BN$HF1$8$G!#(B

$B%i%$%;%s%9$r=q$$$F$*$-$^$7$?!#(B
https://github.com/akr/chkbuild/commit/a00f5b7fc15affc2fbea57c2fdfd65eb7d77ea0c

Ruby $BB&$K(B abi-checker.rb
$B$,$"$l$P$=$C$A$r<B9T$9$k$H$+$b$G$-$k$N$G!"(B
$B$$$m$$$m$H2~B$$7$?$/$J$C$?$i$=$&$$$&$3$H$b9M$($^$7$g$&!#(B

kosaki_SMotohiro_KO · July 9, 2013, 2:12am

2013/7/8 kosaki (Motohiro KOSAKI) [email protected]:

Issue #8469 has been updated by kosaki (Motohiro KOSAKI).

Status changed from Open to Closed

Close$B$9$k$NK:$l$F$^$7$?!#$9$$$^$;$s!#(B

$BJD$8$F$+$iJ9$/$N$b%"%l$J$s$G$9$,!"(Brubyci.org
$B$N%H%C%W%Z!<%8$NI=$K(B ABI breakage
$B$N%+%i%`$rDI2C$9$k$N$OC/$KAjCL$9$l$P$h$$$G$7$g$&$+!)(B

kosaki_SMotohiro_KO · July 9, 2013, 2:37am

$B$3$s$K$A$O!"$J$+$`$i(B($B$&(B)$B$G$9!#(B

In message “[ruby-dev:47493] Re: [ruby-trunk - Feature #8469][Closed]
ABI checker $B$H$+F3F~$7$^$;$s$+(B”
on Jul.09,2013 09:11:18, [email protected] wrote:

$BJD$8$F$+$iJ9$/$N$b%"%l$J$s$G$9$,!"(Brubyci.org $B$N%H%C%W%Z!<%8$NI=$K(B ABI
breakage $B$N%+%i%`$rDI2C$9$k$N$OC/$KAjCL$9$l$P$h$$$G$7$g$&$+!)(B

[email protected]@%$5$s$+$J!#$I$&$G$7$g$&(B?

$B$=$l$G$O!#(B

kosaki_SMotohiro_KO · July 8, 2013, 11:43pm

Issue #8469 has been updated by kosaki (Motohiro KOSAKI).

Status changed from Open to Closed

Closeするの忘れてました。すいません。

Feature #8469: ABI checker とか導入しませんか
https://bugs.ruby-lang.org/issues/8469#change-40365

Author: kosaki (Motohiro KOSAKI)
Status: Closed
Priority: Normal
Assignee:
Category:
Target version:

最近 Vit が報告してきたように、193にもたまにABI非互換が入っているようです。
見たところ実害はなさそうなのですが、非互換が報告されてから実害の有無を検討するのは不毛なのでパッチリリース前に
機械的にチェックしたいですよね。ほとんどのケースは意図的な非互換だからOKという結論になるのだろうとは思いますが、
精神衛生上、枕を高くして寝れる度がちょっとだけ上がります。

で、ちょっと時間をとってみたところ、意外と簡単そう。

http://ispras.linuxbase.org/index.php/ABI_compliance_checker にある、ABI
checkerと
https://github.com/kosaki/ruby/commit/e27c2e5f1e3c7a6fc2fe8b997e95a1e52f0beed3
のパッチをダウンロードして

./ruby …/tool/abi-checker.rb ~/local/ruby-193p0 ~/local/ruby-193

とすると、スクリーンショットのような結果が得られます。
193p0とくらべて最新の193ブランチは

rb_class_init_copy ( VALUE p1, VALUE p2 )
rb_path_end ( char const* p1 )
rb_path_last_separator ( char const* p1 )
rb_path_next ( char const* p1 )
rb_path_skip_prefix ( char const* p1 )
ruby_find_basename ( char const* name, long* baselen, long* alllen )
ruby_find_extname ( char const* name, long* len )

の７つのシンボルが消えてしまっているわけですね。
基本的に現在パッチリリースをしているのって世の中に三人しかいないので、うささん、ながちかさん、うらべさんの意見を聞きたい
ところですが、どうでしょうか。

kosaki_SMotohiro_KO · July 9, 2013, 3:25am

2013/7/8 Tanaka A. [email protected]:

Problems with High 0
Symbols Medium 0
Low 0
Problems with Low 1
Constants
Other Changes - 3
in Constants

$B$H$$$&$N$r=L$a$F(B ABI:8H1L $B$"$?$j$G$9$+$M!#(B

Low$B$O$I$&$;$_$s$JL5;k$9$k$H;W$C$F$k$N$G(B 8
[email protected]$1$G$$$$$H;W$$$^$9!#EvLL$O!#(BHigh$B$GJdB-$G$-$J$$!J$+$D2f!9$,JdB-$7$?$$!K6qBN;vNc$,=P$F$+$i%W%i%9&A9M$($l$P$$$$$H;W$$$^$9!#(B
abi-compliance-checker$B%3%^%s%I5/F0$9$k$H$-$K(B -abi
$B%*%W%7%g%s$D$1$l$P%=!<%9%3%s%Q%A%S%j%F%#$r%A%’%C%/$7$J$/$J$k$N$G!"(B

Removed Symbols High 8
Problems with High 0
Data Types Medium 0
Problems with High 0
Symbols Medium 0

$B$N8^9T$rC1=c$K(Bgrep$B$G=&$C$F$-$F?t;z2C;;$9$l$P$$$$$+$J$"$0$i$$$N%$%a!<%8$J$s$G$9$,!"$I$&$G$7$g$&!#(B

kosaki_SMotohiro_KO · July 10, 2013, 2:37am

2013$BG/(B7$B7n(B9$BF|(B 10:25 KOSAKI Motohiro
[email protected]:

$B$N8^9T$rC1=c$K(Bgrep$B$G=&$C$F$-$F?t;z2C;;$9$l$P$$$$$+$J$"$0$i$$$N%$%a!<%8$J$s$G$9$,!"$I$&$G$7$g$&!#(B
$B$($’!"<B:]$=$s$J$+$s$8$G<BAu$9$k$3$H$K$J$j$^$9!#(B

$B$H$j$"$($:F0$+$7$F8+$?$H$3$m!"(B
rubyci [email protected]$/$J$C$?$h$&$G$9!#(B

$B$$9$9$a$N$H$$j(B Low $B$OL5;k$7$F$$$^$9!#(B
Medium $B$OL5;k$7$F$^$;$s!#(B

$B$J$*!"(Btrunk $B$K$D$$$F$O(B ABI incompatible
$B$J$N$O$=$&$$$&$b$N$J$N$G!"(B
recent.html $B$K$O=P$5$J$$(B (rubyci $B$K$OI=<($5$l$J$$(B)
$B$h$&$K$7$F$$$^$9!#(B