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Subject: [Bug lto/60530] openssh-6.5p1 can't be built with lto - revision 208516
Date: Fri, 14 Mar 2014 18:43:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60530

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to David Kredba from comment #0)
> Created attachment 32351 [details]
> Un-reduced preprocessed source file gzipped
> 
> The only one object file causing the erro from -o ssh ssh.o readconf.o
> clientloop.o sshtty.o sshconnect.o sshconnect1.o sshconnect2.o mux.o
> roaming_common.o roaming_client.o is ssh.o.
> 
> x86_64-pc-linux-gnu-gcc -o ssh ssh.i -L. -Lopenbsd-compat/ -flto=4
> -fuse-linker-plugin -Wl,--as-needed -Wl,-O2 -Wl,-flto -O2 -ggdb -pipe
> -march=native -mtune=native -mno-3dnow -mno-sse4.2 -mno-avx -Wl,-z,relro
> -Wl,-z,now -Wl,-z,noexecstack -fstack-protector-strong -flto=4
> -fuse-linker-plugin -Wl,--as-needed -Wl,-O2 -Wl,-flto -O2 -ggdb -pipe
> -march=native -mtune=native -mno-3dnow -mno-sse4.2 -mno-avx -pie -lssh
> -lopenbsd-compat  -lssl -lcrypto  -ldl -lutil -lz -lnsl  -lcrypt -lresolv
> -lpthread 
> umac.c:1193:3: warning: type of 'umac_ctx' does not match original
> declaration
>  } umac_ctx;
>    ^
> ./umac.c:1193:3: note: previously declared here
>  } umac_ctx;
>    ^
> /usr/lib/gcc/x86_64-pc-linux-gnu/4.9.0-alpha20140311/../../../../x86_64-pc-
> linux-gnu/bin/ld: /tmp/ccKc90pS.ltrans0.ltrans.o: relocation R_X86_64_32
> against `.rodata.str1.1' can not be used when making a shared object;
> recompile with -fPIC
> /tmp/ccKc90pS.ltrans0.ltrans.o: error adding symbols: Bad value
> collect2: error: ld returned 1 exit status

When -pie is used, you need to add -fpie.