https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96217
Bug ID: 96217
Summary: undefined reference to `_Unwind_Resume'
Product: gcc
Version: 10.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: legarrec.vincent at gmail dot com
Target Milestone: ---
Created attachment 48880
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48880&action=edit
glibc-build.zip
I work on Gentoo. I compiled gcc with -O0 and I was able to complete the build
(I didn't executed tests).
But I try to compile glibc with gcc built with -O0. The log says :
/usr/lib/gcc/x86_64-pc-linux-gnu/10.1.0/../../../../x86_64-pc-linux-gnu/bin/ld.bfd:
/usr/lib/gcc/x86_64-pc-linux-gnu/10.1.0/32/libgcc.a(_divdi3.o): in function
`__divdi3':
/var/tmp/portage/sys-devel/gcc-10.1.0-r2/work/gcc-10.1.0/libgcc/libgcc2.c:1246:
undefined reference to `_Unwind_Resume'
/usr/lib/gcc/x86_64-pc-linux-gnu/10.1.0/../../../../x86_64-pc-linux-gnu/bin/ld.bfd:
/usr/lib/gcc/x86_64-pc-linux-gnu/10.1.0/32/libgcc.a(_divdi3.o):(.data.rel.local.DW.ref.__gcc_personality_v0[DW.ref.__gcc_personality_v0]+0x0):
undefined reference to `__gcc_personality_v0'
/usr/lib/gcc/x86_64-pc-linux-gnu/10.1.0/../../../../x86_64-pc-linux-gnu/bin/ld.bfd:
/usr/lib/gcc/x86_64-pc-linux-gnu/10.1.0/32/libgcc.a(_moddi3.o): in function
`__moddi3':
/var/tmp/portage/sys-devel/gcc-10.1.0-r2/work/gcc-10.1.0/libgcc/libgcc2.c:1269:
undefined reference to `_Unwind_Resume'
A simple test case is really hard because gcc successfully built small other
packages and I have no idea why I have this "undefined reference".
I was able to compiling gcc with -O2 (with gcc built with -O0) then to build
glibc successfully.
Please find enclosed the build.log of glibc.
