diff options
Diffstat (limited to 'open_issues/gcc')
| -rw-r--r-- | open_issues/gcc/c++.mdwn | 41 | ||||
| -rw-r--r-- | open_issues/gcc/pie.mdwn | 40 |
2 files changed, 40 insertions, 41 deletions
diff --git a/open_issues/gcc/c++.mdwn b/open_issues/gcc/c++.mdwn deleted file mode 100644 index cab4c1f1..00000000 --- a/open_issues/gcc/c++.mdwn +++ /dev/null @@ -1,41 +0,0 @@ -[[!meta copyright="Copyright © 2008, 2009 Free Software Foundation, Inc."]] - -[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable -id="license" text="Permission is granted to copy, distribute and/or modify this -document under the terms of the GNU Free Documentation License, Version 1.2 or -any later version published by the Free Software Foundation; with no Invariant -Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license -is included in the section entitled -[[GNU Free Documentation License|/fdl]]."]]"""]] - -[[!tag open_issue_porting open_issue_gcc fixed_in_debian]] - -Modify the [[hurd/building/cross-compiling]] shell script to configure GCC for -building GCC with C++ support when building its second (i.e., final) version. - -Compiling a most-trivial C++ program used to work with GCC 4.2 and 4.3 (and the -resulting binaries would also work), but linking fails with GCC SVN trunk: - - $ $TARGET-g++ -Wall a.cc -lpthread - /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__multf3' - /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__fixunstfsi' - /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__subtf3' - /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__divtf3' - /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__copysigntf3' - /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__addtf3' - /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__lttf2' - /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__floatsitf' - /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__netf2' - /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__floatunsitf' - /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__eqtf2' - /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__fabstf2' - collect2: ld returned 1 exit status - -Whether this defect report also applies to a natively-build GCC from SVN trunk -has not yet been checked. - -[[Thomas_Schwinge|tschwinge]] suspects the problem to be a configuration issue -of a GCC helper library, whose configuration setup has changed after GCC 4.3. - -The need for `-lpthread` is another story. See the Debian glibc patches -repository for details. diff --git a/open_issues/gcc/pie.mdwn b/open_issues/gcc/pie.mdwn new file mode 100644 index 00000000..a4598d1e --- /dev/null +++ b/open_issues/gcc/pie.mdwn @@ -0,0 +1,40 @@ +[[!meta copyright="Copyright © 2012 Free Software Foundation, Inc."]] + +[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable +id="license" text="Permission is granted to copy, distribute and/or modify this +document under the terms of the GNU Free Documentation License, Version 1.2 or +any later version published by the Free Software Foundation; with no Invariant +Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license +is included in the section entitled [[GNU Free Documentation +License|/fdl]]."]]"""]] + +[[!meta title="Position-Independent Executables"]] + +[[!tag open_issue_gcc]] + + +# IRC, freenode, #debian-hurd, 2012-11-08 + + <pinotree> tschwinge: i'm not totally sure, but it seems the pie options + for gcc/ld are causing issues + <pinotree> namely, producing executables that sigsegv straight away + <tschwinge> pinotree: OK, I do remember some issues about these, too. + <tschwinge> Also for -pg. + <tschwinge> These have in common that they use different crt*.o files for + linking. + <tschwinge> Might well be there's some bugs there. + <pinotree> one way is to try the w3m debian build: the current build + configuration enables also pie, which in turns makes an helper executable + (mktable) sigsegv when invoked + <pinotree> if «,-pie» is appended to the DEB_BUILD_MAINT_OPTIONS variable + in debian/rules, pie is not added and the resulting mktable runs + correctly + + +## IRC, OFTC, #debian-hurd, 2012-11-09 + + <pinotree> youpi: ah, as i noted to tschwinge earlier, it seems -fPIE -pie + miscompile stuff + <youpi> uh + <pinotree> this causes the w3m build failure and (indirectly, due to elinks + built with -pie) aptitude |