[Bug lto/81968] [8 regression] early lto debug objects make Solaris ld SEGV

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81968

--- Comment #29 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> It does by removing the SHT_NULL sections.  The patch should work - you 
> can double-check - it just doesn't handle the "corner case" of more
> than 32000 input sections correctly when rewriting the symbol table.

There is one nit with -g3 on x86-64/Linux:

FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 -g3 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 -g3 -O (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 -g3 -O3 (test for excess errors)

/home/eric/install/gcc/x86_64-suse-linux/bin/ld: /tmp/ccyqoYHFdebugobjtem: no
group info for section .debug_macro
/home/eric/install/gcc/x86_64-suse-linux/bin/ld: /tmp/ccyqoYHFdebugobjtem: no
group info for section .debug_macro
/home/eric/install/gcc/x86_64-suse-linux/bin/ld: /tmp/ccyqoYHFdebugobjtem: no
group info for section .debug_macro
/home/eric/install/gcc/x86_64-suse-linux/bin/ld: /tmp/ccyqoYHFdebugobjtem: no
group info for section .debug_macro
/home/eric/install/gcc/x86_64-suse-linux/bin/ld: /tmp/ccyqoYHFdebugobjtem: no
group info for section .debug_macro
/home/eric/install/gcc/x86_64-suse-linux/bin/ld: /tmp/ccyqoYHFdebugobjtem: no
group info for section .debug_macro
/tmp/ccyqoYHFdebugobjtem: file not recognized: Bad value
collect2: error: ld returned 1 exit status
lto-wrapper: fatal error: gcc/xgcc returned 1 exit status
compilation terminated.
/home/eric/install/gcc/x86_64-suse-linux/bin/ld: error: lto-wrapper failed