https://sourceware.org/bugzilla/show_bug.cgi?id=19446
--- Comment #6 from David Li <xinliangli at gmail dot com> --- (In reply to H.J. Lu from comment #5) > (In reply to David Li from comment #4) > > (In reply to H.J. Lu from comment #3) > > > (In reply to David Li from comment #2) > > > > (In reply to H.J. Lu from comment #1) > > > > > Since UNREF section is not referenced, it should be GCed. Am I > > > > > missing > > > > > something? > > > > > > > > Note that the section does not have 'a' bit -- just like debug sections. > > > > Linker won't GC debug sections, right? > > > > > > ld only treats known debug sections as debug sections. Are you looking > > > for a way to prevent unreferenced section from GC? > > > > yes. > > > > Will > > .globl unref > .section UNREF,"",@note > .align 8 > .type unref, @object > .size unref, 8 > unref: > .quad g0 > > work for you? > > > > > > > > Also there is inconsistent behavior here -- when g0 is not referenced by > > > > UNREF, UNREF will be kept by the linker. > > > > > > g0 is removed by ld in binutils 2.26. > > > > No -- that is not the point. The point is that if UNDEF section is defined > > as follows, ld *will* keep UNREF (I have not tried 2.26). What makes ld > > think UNREF should be kept here as they are not known debug sections? > > > > > > > > .globl unref > > .section UNREF,"",@progbits > > .align 8 > > .type unref, @object > > .size unref, 8 > > unref: > > .long 0 > > > > .text > > .globl main > > .type main, @function > > GCC in ld in binutils 2.26 will remove it. making it a note section works fine for both ld and gold -- You are receiving this mail because: You are on the CC list for the bug. _______________________________________________ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils