https://bugzilla.gdcproject.org/show_bug.cgi?id=289
Bug ID: 289
Summary: Static linking has wrong libc/libpthread order
Product: GDC
Version: 7.x
Hardware: All
OS: All
Status: NEW
Severity: major
Priority: Normal
Component: gdc
Assignee: ibuc...@gdcproject.org
Reporter: ste...@schuerger.com
When compiling a little "helloworld" program with an ARM GDC cross-compiler
toolchain, I encounter a symbol error:
$ arm-linux-gnueabihf-gdc helloworld.o -o helloworld.arm -static
/opt/cross/lib/gcc/arm-linux-gnueabihf/7.3.0/../../../../arm-linux-gnueabihf/lib/libgphobos.a(stdio.o):
In function `_D3std5stdio11openNetworkFAyatZS3std5stdio4File':
/home/stefan/src-gcc/build/build-gcc/arm-linux-gnueabihf/libphobos/src/../../../../gcc-7.3.0/libphobos/src/std/stdio.d:5122:
warning: Using 'gethostbyname' in statically linked applications requires at
runtime the shared libraries from the glibc version used for linking
/opt/cross/lib/gcc/arm-linux-gnueabihf/7.3.0/../../../../arm-linux-gnueabihf/lib/libpthread.a(lowlevellock.o):
In function `__lll_lock_wait_private':
/home/stefan/src-gcc/build/glibc-2.27/nptl/lowlevellock.c:28: multiple
definition of `__lll_lock_wait_private'
/opt/cross/lib/gcc/arm-linux-gnueabihf/7.3.0/../../../../arm-linux-gnueabihf/lib/libc.a(libc-lowlevellock.o):/home/stefan/src-gcc/build/glibc-2.27/nptl/./lowlevellock.c:28:
first defined here
collect2: error: ld returned 1 exit status
-v shows glibc is linked before libpthread, that's wrong:
...
/opt/cross/libexec/gcc/arm-linux-gnueabihf/7.3.0/collect2 -plugin
/opt/cross/libexec/gcc/arm-linux-gnueabihf/7.3.0/liblto_plugin.so
-plugin-opt=/opt/cross/libexec/gcc/arm-linux-gnueabihf/7.3.0/lto-wrapper
-plugin-opt=-fresolution=/tmp/ccWgyAkd.res -plugin-opt=-pass-through=-lgcc
-plugin-opt=-pass-through=-lgcc_eh -plugin-opt=-pass-through=-lc
-plugin-opt=-pass-through=-lm -plugin-opt=-pass-through=-lpthread
-plugin-opt=-pass-through=-ldl -Bstatic -X -m armelf_linux_eabi -o
helloworld.arm
/opt/cross/lib/gcc/arm-linux-gnueabihf/7.3.0/../../../../arm-linux-gnueabihf/lib/crt1.o
/opt/cross/lib/gcc/arm-linux-gnueabihf/7.3.0/../../../../arm-linux-gnueabihf/lib/crti.o
/opt/cross/lib/gcc/arm-linux-gnueabihf/7.3.0/crtbeginT.o
-L/opt/cross/lib/gcc/arm-linux-gnueabihf/7.3.0
-L/opt/cross/lib/gcc/arm-linux-gnueabihf/7.3.0/../../../../arm-linux-gnueabihf/lib
helloworld.o -lgphobos -lgdruntime --start-group -lgcc -lgcc_eh -lc -lm
-lpthread -ldl --end-group
/opt/cross/lib/gcc/arm-linux-gnueabihf/7.3.0/crtend.o
/opt/cross/lib/gcc/arm-linux-gnueabihf/7.3.0/../../../../arm-linux-gnueabihf/lib/crtn.o
When changing the link order manually, it works:
/opt/cross/libexec/gcc/arm-linux-gnueabihf/7.3.0/collect2 -plugin
/opt/cross/libexec/gcc/arm-linux-gnueabihf/7.3.0/liblto_plugin.so
-plugin-opt=/opt/cross/libexec/gcc/arm-linux-gnueabihf/7.3.0/lto-wrapper
-plugin-opt=-fresolution=/tmp/cc5Y6i7I.res -plugin-opt=-pass-through=-lgcc
-plugin-opt=-pass-through=-lgcc_eh -plugin-opt=-pass-through=-lc
-plugin-opt=-pass-through=-lm -plugin-opt=-pass-through=-lpthread
-plugin-opt=-pass-through=-ldl -Bstatic -X -m armelf_linux_eabi -o
helloworld.arm
/opt/cross/lib/gcc/arm-linux-gnueabihf/7.3.0/../../../../arm-linux-gnueabihf/lib/crt1.o
/opt/cross/lib/gcc/arm-linux-gnueabihf/7.3.0/../../../../arm-linux-gnueabihf/lib/crti.o
/opt/cross/lib/gcc/arm-linux-gnueabihf/7.3.0/crtbeginT.o
-L/opt/cross/lib/gcc/arm-linux-gnueabihf/7.3.0
-L/opt/cross/lib/gcc/arm-linux-gnueabihf/7.3.0/../../../../arm-linux-gnueabihf/lib
helloworld.o -lgphobos -lgdruntime --start-group -lgcc -lgcc_eh -lpthread -lc
-lm -ldl --end-group /opt/cross/lib/gcc/arm-linux-gnueabihf/7.3.0/crtend.o
/opt/cross/lib/gcc/arm-linux-gnueabihf/7.3.0/../../../../arm-linux-gnueabihf/lib/crtn.o
Please fix. Thanks!
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