Hi Jim, removing both pie flags did the trick. I removed the fno-plt too. Thanks for your help. I like the default flag for pie. This way I don't have to set them via CFLAGS and have them break my library builds :) Best Peter Am 11. Juli 2020 03:35:38 MESZ schrieb Jim Wilson <jimw@xxxxxxxxxx>: >On Thu, Jul 9, 2020 at 1:51 AM Peter Lamby via Gcc-help ><gcc-help@xxxxxxxxxxx> wrote: >> export CFLAGS=-pipe -march=native -fstack-protector-strong -fno-plt \ >> -pie -fpie > >You can't use -pie when linking a shared library. So this isn't going >to work. Also the -fno-plt is suspicious. Can you compile a shared >library without plts? The -fpie is clearly wrong too. You need to do >this a different way. Note that gcc has a configure option >--enable-default-pie which will produce pie output by default, but >won't pass -pie to the linker with -static, -shared, or -r. And won't >add -fpie if -fpic was specified. > >rohan:2242$ gcc -shared -fpic -o tmp.so tmp.c >rohan:2243$ gcc -shared -fpic -o tmp.so tmp.c -pie >/usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/Scrt1.o: In >function `_start': >(.text+0x20): undefined reference to `main' >collect2: error: ld returned 1 exit status >rohan:2244$ > >Jim -- Diese Nachricht wurde von meinem Android-Gerät mit K-9 Mail gesendet.
