Hi all! Recently I attempted to build glibc-2.31 with --enable-static-pie (gcc-9.3.0). Some targets work just fine, some don't. A few faulty ones so far are:
- alpha-unknown-linux-gnu
- hppa-unknown-linux-gnu
- hppa2.0-unknown-linux-gnu
- m68k-unknown-linux-gnu
- sparc-unknown-linux-gnu
- sparc64-unknown-linux-gnu
Build failure looks roughly the same for them:
alpha-unknown-linux-gnu-gcc -pipe -fdiagnostics-show-option -Wall -Wextra
-Wstack-protector -O2 -Wl,-O1 -Wl,--as-needed -Wl,--hash-style=gnu -nostdlib
-nostartfiles -static -o
/tmp/portage/cross-alpha-unknown-linux-gnu/glibc-9999/work/build-default-alpha-unknown-linux-gnu-nptl/elf/sln
-static-pie
/tmp/portage/cross-alpha-unknown-linux-gnu/glibc-9999/work/build-default-alpha-unknown-linux-gnu-nptl/csu/rcrt1.o
/tmp/portage/cross-alpha-unknown-linux-gnu/glibc-9999/work/build-default-alpha-unknown-linux-gnu-nptl/csu/crti.o
`alpha-unknown-linux-gnu-gcc -pipe -fdiagnostics-show-option -Wall -Wextra
-Wstack-protector -O2 -Wl,-O1 -Wl,--as-needed -Wl,--hash-style=gnu
--print-file-name=crtbeginS.o`
/tmp/portage/cross-alpha-unknown-linux-gnu/glibc-9999/work/build-default-alpha-unknown-linux-gnu-nptl/elf/sln.o
/tmp/portage/cross-alpha-unknown-linux-gnu/glibc-9999/work/build-default-alpha-unknown-linux-gnu-nptl/elf/static-stubs.o
-Wl,-z,now -Wl,--start-group
/tmp/portage/cross-alpha-unknown-linux-gnu/glibc-9999/work/build-default-alpha-unknown-linux-gnu-nptl/libc.a
-lgcc -Wl,--end-group `alpha-unknown-linux-gnu-gcc -pipe
-fdiagnostics-show-option -Wall -Wextra -Wstack-protector -O2 -Wl,-O1
-Wl,--as-needed -Wl,--hash-style=gnu --print-file-name=crtendS.o`
/tmp/portage/cross-alpha-unknown-linux-gnu/glibc-9999/work/build-default-alpha-unknown-linux-gnu-nptl/csu/crtn.o
/usr/libexec/gcc/alpha-unknown-linux-gnu/ld:
/tmp/portage/cross-alpha-unknown-linux-gnu/glibc-9999/work/build-default-alpha-unknown-linux-gnu-nptl/libc.a(dl-reloc-static-pie.o):
in function `_dl_relocate_static_pie':
(.text+0x48): undefined reference to `_DYNAMIC'
Compiler driver calls ld as:
--eh-frame-hdr -m elf64alpha -static
On a working x86_64 target ld parameters are:
--eh-frame-hdr -m elf_x86_64 -static -pie --no-dynamic-linker -z text -pie
Looking at gcc commit that added -static-pie:
https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=8c6562e12bf7d1406474cbba832073a4afe5687c
is it an unintended lack of '-pie --no-dynamic-linker' on alpha and friends?
Or some ports don't really need it?
Or maybe alpha and friends need more work on binutils/glibc side before adding
it?
--
Sergei
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