Bug #18050: Cannot build ruby-2.7.4 on NetBSD

• Status: Open
• Priority: Normal
• Assignee: -
• Target version: -
• Backport: 2.6: UNKNOWN, 2.7: UNKNOWN, 3.0: UNKNOWN

[sydofficious (Kenneth Dunlap)]

NetBSD juggler.panix.com 9.1 NetBSD 9.1 (PANIX-STD) #2: Thu Mar 18 17:46:23 EDT 2021  [e-mail]:/misc/obj64/misc/devel/netbsd/9.1/src/sys/arch/amd64/compile/PANIX-STD amd64

Configuration summary for ruby version 2.7.4

   * Installation prefix: /usr/local
   * exec prefix:         ${prefix}
   * arch:                x86_64-netbsd9.1
   * site arch:           ${arch}
   * RUBY_BASE_NAME:      ruby
   * enable shared:       yes
   * ruby lib prefix:     ${libdir}/${RUBY_BASE_NAME}
   * site libraries path: ${rubylibprefix}/${sitearch}
   * vendor path:         ${rubylibprefix}/vendor_ruby
   * target OS:           netbsd9.1
   * compiler:            gcc
   * with pthread:        yes
   * with coroutine:      ucontext
   * enable shared libs:  yes
   * dynamic library ext: so
   * CFLAGS:              ${optflags} ${debugflags} ${warnflags}
   * LDFLAGS:             -L. -L/usr/local/lib -fstack-protector-strong\
                          -Wl,-export-dynamic
   * DLDFLAGS:            -L. -L/usr/local/lib\
                          -Wl,--compress-debug-sections=zlib
   * optflags:            -O3
   * debugflags:          -ggdb3
   * warnflags:           -Wall -Wextra -Wdeprecated-declarations\
                          -Wduplicated-cond -Wimplicit-function-declaration\
                          -Wimplicit-int -Wmisleading-indentation\
                          -Wpointer-arith -Wwrite-strings\
                          -Wimplicit-fallthrough=0 -Wmissing-noreturn\
                          -Wno-cast-function-type\
                          -Wno-constant-logical-operand -Wno-long-long\
                          -Wno-missing-field-initializers\
                          -Wno-overlength-strings\
                          -Wno-packed-bitfield-compat\
                          -Wno-parentheses-equality -Wno-self-assign\
                          -Wno-tautological-compare -Wno-unused-parameter\
                          -Wno-unused-value -Wsuggest-attribute=format\
                          -Wsuggest-attribute=noreturn -Wunused-variable
   * strip command:       strip
   * install doc:         no
   * JIT support:         yes
   * man page type:       man
   * BASERUBY -v:         ruby 2.7.3p183 (2021-04-05 revision 6847ee089d)\
                          [x86_64-netbsd9.1]

In this case, make made it to here:

generating encdb.h
encdb.h updated
-e:1: [BUG] Segmentation fault
ruby 2.7.3p183 (2021-04-05 revision 6847ee089d) [x86_64-netbsd9.1]

-- Control frame information -----------------------------------------------
c:0004 p:---- s:0015 e:000014 CFUNC  :gets
c:0003 p:---- s:0012 e:000011 CFUNC  :gets
c:0002 p:0102 s:0008 E:000750 EVAL   -e:1 [FINISH]
c:0001 p:0000 s:0003 E:001d70 (none) [FINISH]

-- Ruby level backtrace information ----------------------------------------
-e:1:in `<main>'
-e:1:in `gets'
-e:1:in `gets'

-- C level backtrace information -------------------------------------------
/usr/local/lib/libruby.so.27(rb_profile_frame_full_label+0x19) [0x79121c4bc4b7]
/usr/local/lib/libruby.so.27(rb_profile_frame_full_label+0x7c) [0x79121c4bc54a]
/usr/local/lib/libruby.so.27(rb_bug+0x124) [0x79121c2bca75]
/usr/local/lib/libruby.so.27(ruby_posix_signal+0x0) [0x79121c40ef41]
/usr/lib/libc.so.12(__sigtramp_siginfo_2+0x0) [0x79121a0a1d50]

-- Other runtime information -----------------------------------------------

* Loaded script: -e

* Loaded features:

    0 enumerator.so
    1 thread.rb
    2 rational.so
    3 complex.so
    4 ruby2_keywords.rb
    5 /usr/local/lib/ruby/2.7.0/x86_64-netbsd9.1/enc/encdb.so
    6 /usr/local/lib/ruby/2.7.0/x86_64-netbsd9.1/enc/trans/transdb.so

gmake: *** [Makefile:1489: .rbconfig.time] Abort trap (core dumped)

Again, it seems pretty random. First attempt, it didn't segfault until the make install phase.

[sydofficious (Kenneth Dunlap)]

This turned out to be an issue with miniruby when the NetBSD kernel has PaX ASLR (Address Space Layout Randomization) enabled. The following patch, applied post-configure, works around the problem.

--- Makefile.orig     2021-07-28 13:31:38.018160281 -0400
+++ Makefile    2021-07-28 13:37:35.292884198 -0400
@@ -270,6 +270,7 @@
                $(ECHO) linking $@
                $(Q) $(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) $(NORMALMAINOBJ) $(MINIOBJS) $(COMMONOBJS) $(MAINLIBS) $(LIBS) $(OUTFLAG)$@
                $(Q) $(POSTLINK)
+               paxctl +a $@

 $(PROGRAM):
                @$(RM) $@

[nobu (Nobuyoshi Nakada)]

• Is duplicate of Bug #18049: Cannot build ruby-3.0.2 on NetBSD added

[nobu (Nobuyoshi Nakada)]

• Description updated (diff)