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From: "doko at debian dot org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug lto/99448] ICE in read_cgraph_and_symbols, at
 lto/lto-common.c:2739
Date: Mon, 08 Mar 2021 09:53:42 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99448

--- Comment #2 from Matthias Klose <doko at debian dot org> ---
the compiler is configured with --enable-default-pie.

so this one sometimes fails with different reasons when retrying:

lto1: error: filter/andfiltertest.o: file too short
lto1: fatal error: errors during merging of translation units
compilation terminated.
lto-wrapper: fatal error: g++ returned 1 exit status
compilation terminated.
/usr/bin/ld: error: lto-wrapper failed
collect2: error: ld returned 1 exit status

and doesn't fail now when just retrying the link command manually now ...

these flags are passed to the upstream build system:

CFLAGS=3D-g -O2 -ffile-prefix-map=3D/packages/tmp/log4cxx-0.11.0=3D. -flto=
=3Dauto
-ffat-lto-objects -fstack-protector-strong -Wformat -Werror=3Dformat-securi=
ty
CPPFLAGS=3D-Wdate-time -D_FORTIFY_SOURCE=3D2
CXXFLAGS=3D-g -O2 -ffile-prefix-map=3D/packages/tmp/log4cxx-0.11.0=3D. -flt=
o=3Dauto
-ffat-lto-objects -fstack-protector-strong -Wformat -Werror=3Dformat-securi=
ty
LDFLAGS=3D-flto=3Dauto -Wl,-z,relro=