From: Nobuyoshi Nakada <nobu@...>
Date: 2012-02-20T12:43:32+09:00
Subject: [ruby-core:42753] [ruby-trunk - Bug #5676][Closed] miniruby linking error: undefined reference to ___stack_chk_guard


Issue #5676 has been updated by Nobuyoshi Nakada.

Status changed from Feedback to Closed

Jon Forums wrote:
> I think you're right on runtime library mismatch, but shouldn't it fail when miniruby is used later in the build process, not at miniruby link time?

The mismatch between the compiler and the runtime library.  It can't
be deferred.

> 	475:-lssp.0 => /usr/local/lib/gcc46/libssp.so.0

Then -fstack-protector should let gcc link that library.

Try "gcc46 -dumpspecs | grep -A1 '^\*link_ssp:'", and if
%{fstack-protector:} does not exist or no options is given after the
colon, the spec is wrong.  And you will see same error with the
following simple code and -fstack-protector option, I guess:

  #include <stdlib.h>
  #include <stdio.h>
  int main() {printf("%p\n", alloca(102400)); return 0;}

If it's the case, this is primarily an issue of FreeBSD port.

> But shouldn't gcc46's default search dirs save the link like it appears to be happening when configure (using `--with-gcc=gcc46`) executes `RUBY_TRY_CFLAGS(-fstack-protector, ...)`?

It shouild be done in the spec file, as metioned above.

----------------------------------------
Bug #5676: miniruby linking error: undefined reference to ___stack_chk_guard
https://bugs.ruby-lang.org/issues/5676

Author: Martin D��rst
Status: Closed
Priority: Normal
Assignee: Motohiro KOSAKI
Category: build
Target version: 2.0.0
ruby -v: ruby 2.0.0dev (2011-11-27 trunk 33861) [i386-cygwin]


I get what I think is a linking error when linking miniruby.
Below is a (shortened) copy of the output I get. This is on
a clean checkout of trunk (using Ruby 1.8.7 as baseruby).

duerst@jougashima /cygdrive/c/Data/ruby-public
$ make
        CC = gcc
        LD = ld
        LDSHARED = gcc -shared -s
        CFLAGS = -O3 -g -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Werror=pointer-arith -Werror=write-strings -Werror=declaration-after-statement -Werror=implicit-function-declaration
        XCFLAGS = -include ruby/config.h -include ruby/missing.h -D_FORTIFY_SOURCE=2 -fstack-protector -DRUBY_EXPORT
        CPPFLAGS =   -I. -I.ext/include/i386-cygwin -I./include -I.
        DLDFLAGS = -Wl,--enable-auto-image-base,--enable-auto-import -Wl,--out-implib=libruby191.dll.a cygruby191.def -Xlinker --no-undefined
        SOLIBS = cygruby191.res.o -lpthread -lrt -ldl -lcrypt
linking miniruby.exe
dmyencoding.o: In function `set_encoding_const':
/cygdrive/c/Data/ruby-public/encoding.c:1473: undefined reference to `___stack_chk_guard'
/cygdrive/c/Data/ruby-public/encoding.c:1520: undefined reference to `___stack_chk_guard'
/cygdrive/c/Data/ruby-public/encoding.c:1520: undefined reference to `___stack_chk_fail'
bignum.o: In function `rb_str_to_inum':
/cygdrive/c/Data/ruby-public/bignum.c:763: undefined reference to `___stack_chk_guard'
/cygdrive/c/Data/ruby-public/bignum.c:790: undefined reference to `___stack_chk_guard'
/cygdrive/c/Data/ruby-public/bignum.c:790: undefined reference to `___stack_chk_fail'
dir.o: In function `dir_read':
/cygdrive/c/Data/ruby-public/dir.c:569: undefined reference to `___stack_chk_guard'
/cygdrive/c/Data/ruby-public/dir.c:586: undefined reference to `___stack_chk_guard'
/cygdrive/c/Data/ruby-public/dir.c:586: undefined reference to `___stack_chk_fail'

[... many more like these ...]

vm_dump.o: In function `control_frame_dump':
/cygdrive/c/Data/ruby-public/vm_dump.c:27: undefined reference to `___stack_chk_guard'
/cygdrive/c/Data/ruby-public/vm_dump.c:148: undefined reference to `___stack_chk_guard'
/cygdrive/c/Data/ruby-public/vm_dump.c:148: undefined reference to `___stack_chk_fail'
cont.o: In function `cont_restore_0':
/cygdrive/c/Data/ruby-public/cont.c:733: undefined reference to `___stack_chk_guard'
unicode.o: In function `onigenc_unicode_property_name_to_ctype':
/cygdrive/c/Data/ruby-public/./enc/unicode.c:2087: undefined reference to `___stack_chk_guard'
/cygdrive/c/Data/ruby-public/./enc/unicode.c:2114: undefined reference to `___stack_chk_guard'
/cygdrive/c/Data/ruby-public/./enc/unicode.c:2114: undefined reference to `___stack_chk_fail'
collect2: ld returned 1 exit status
make: *** [miniruby.exe] Error 1

duerst@jougashima /cygdrive/c/Data/ruby-public
$



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