Hi,
I cross-compiled GCC 4.6.3 and binutil 2.22 for microblaze
and I came into a problem, the constructors table is not sorted by priority, actually the priority
seem to be gone. I have added this template in the linker script:
.ctors : {
__CTOR_LIST__ = .;
___CTORS_LIST___ = .;
KEEP (*crtbegin.o(.ctors))
KEEP (*(EXCLUDE_FILE(*crtend.o) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
__CTOR_END__ = .;
___CTORS_END___ = .;
} > _region_
.dtors : {
__DTOR_LIST__ = .;
___DTORS_LIST___ = .;
KEEP (*crtbegin.o(.dtors))
KEEP (*(EXCLUDE_FILE(*crtend.o) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
__DTOR_END__ = .;
___DTORS_END___ = .;
} > _region_
The result of the constructor section is the following:
.ctors 0x0000000090092008 0x64
0x0000000090092008 __CTOR_LIST__ = .
0x0000000090092008 ___CTORS_LIST___ = .
*crtbegin.o(.ctors)
*(EXCLUDE_FILE(*crtend.o) .ctors)
.ctors 0x0000000090092008 0x10 /tmp/ecos/spartan3adsp_net/install/lib/extras.o
.ctors 0x0000000090092018 0x4 /tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(infra_diag.o)
.ctors 0x000000009009201c 0x4 /tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(kernel_kapi.o)
.ctors 0x0000000090092020 0x4 /tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(kernel_thread.o)
.ctors 0x0000000090092024 0x4 /tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(kernel_except.o)
.ctors 0x0000000090092028 0x4 /tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(kernel_intr.o)
.ctors 0x000000009009202c 0x4 /tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(kernel_sched.o)
.ctors 0x0000000090092030 0x4 /tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(compat_posix_pthread.o)
.ctors 0x0000000090092034 0x4 /tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(compat_posix_time.o)
.ctors 0x0000000090092038 0x4 /tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(compat_posix_signal.o)
.ctors 0x000000009009203c 0x4 /tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(io_wallclock_wallclock.o)
.ctors 0x0000000090092040 0x4 /tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(io_fileio_fd.o)
.ctors 0x0000000090092044 0x4 /tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(io_fileio_select.o)
.ctors 0x0000000090092048 0x4 /tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(net_bsd_tcpip_init.o)
.ctors 0x000000009009204c 0x4 /tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(kernel_clock.o)
.ctors
0x0000000090092050 0x4
/tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(services_memalloc_common_kapi.o)
.ctors
0x0000000090092054 0x4
/tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(services_memalloc_common_heaps.o)
.ctors 0x0000000090092058 0x4 /tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(language_c_libc_stdio_stderr.o)
.ctors 0x000000009009205c 0x4 /tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(language_c_libc_stdio_stdin.o)
.ctors
0x0000000090092060 0x4
/tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(language_c_libc_stdio_stdiofiles.o)
.ctors 0x0000000090092064 0x4 /tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(language_c_libc_stdio_stdout.o)
.ctors 0x0000000090092068 0x4 /tmp/ecos/spartan3adsp_net/install/lib/libtarget.a(io_fileio_socket.o)
*(SORT(.ctors.*))
*(.ctors)
0x000000009009206c __CTOR_END__ = .
0x000000009009206c ___CTORS_END__
With
a similar application compiled with powerpc-eabi - GCC 4.5 / binutil
2.20 I get a list sorted differently, also some priority number are
attached to each entry which is not the case for microblaze.
*(SORT(.ctors*))
.ctors.07535 0x00150680 0x4 /tmp/ecos/mpc8572ds_net/install/lib/extras.o
.ctors.07535 0x00150684 0x4 /tmp/ecos/mpc8572ds_net/install/lib/libtarget.a(compat_posix_pthread.o)
.ctors.07535 0x00150688 0x4 /tmp/ecos/mpc8572ds_net/install/lib/libtarget.a(compat_posix_time.o)
.ctors.07535 0x0015068c 0x4 /tmp/ecos/mpc8572ds_net/install/lib/libtarget.a(compat_posix_signal.o)
.ctors.09435 0x00150690 0x4 /tmp/ecos/mpc8572ds_net/install/lib/libtarget.a(net_bsd_tcpip_init.o)
.ctors.09533 0x00150694 0x4 /tmp/ecos/mpc8572ds_net/install/lib/libtarget.a(language_c_libc_stdio_stderr.o)
.ctors.09534 0x00150698 0x4 /tmp/ecos/mpc8572ds_net/install/lib/libtarget.a(language_c_libc_stdio_stdout.o)
.ctors.09535 0x0015069c 0x4 /tmp/ecos/mpc8572ds_net/install/lib/libtarget.a(language_c_libc_stdio_stdin.o)
.ctors.09535 0x001506a0 0x4 /tmp/ecos/mpc8572ds_net/install/lib/libtarget.a(language_c_libc_stdio_stdiofiles.o)
.ctors.15535 0x001506a4 0x8 /tmp/ecos/mpc8572ds_net/install/lib/extras.o
.ctors.15535 0x001506ac 0x4 /tmp/ecos/mpc8572ds_net/install/lib/libtarget.a(io_fileio_fd.o)
.ctors.15535 0x001506b0 0x4 /tmp/ecos/mpc8572ds_net/install/lib/libtarget.a(io_fileio_select.o)
.ctors.15535 0x001506b4 0x4 /tmp/ecos/mpc8572ds_net/install/lib/libtarget.a(io_fileio_socket.o)
.ctors.16535 0x001506b8 0x4 /tmp/ecos/mpc8572ds_net/install/lib/extras.o
.ctors.29535 0x001506bc 0x4 /tmp/ecos/mpc8572ds_net/install/lib/libtarget.a(io_wallclock_wallclock.o)
.ctors.45635 0x001506c0 0x4 /tmp/ecos/mpc8572ds_net/install/lib/libtarget.a(services_memalloc_common_heaps.o)
.ctors.51535 0x001506c4 0x4 /tmp/ecos/mpc8572ds_net/install/lib/libtarget.a(kernel_clock.o)
.ctors.53535 0x001506c8 0x4 /tmp/ecos/mpc8572ds_net/install/lib/libtarget.a(kernel_except.o)
.ctors.53535 0x001506cc 0x4 /tmp/ecos/mpc8572ds_net/install/lib/libtarget.a(kernel_intr.o)
.ctors.54435 0x001506d0 0x4 /tmp/ecos/mpc8572ds_net/install/lib/libtarget.a(kernel_thread.o)
.ctors.54535 0x001506d4 0x4 /tmp/ecos/mpc8572ds_net/install/lib/libtarget.a(kernel_sched.o)
.ctors.55435 0x001506d8 0x4 /tmp/ecos/mpc8572ds_net/install/lib/libtarget.a(infra_diag.o)
Has anyone tips to get the constructor priority to work with microblaze compiler/linker?
Thanks,
Christophe
GCC configuration:
.configure
--target=$TARGET --prefix=/tmp/gnutools/$TARGET --with-newlib
--with-gnu-as --with-gnu-ld --enable-languages=c,c++ --enable-threads
--disable-hosted-libstdcxx --disable-__cxa_atexit
Binutil configuration:
configure --target=$TARGET --prefix=/tmp/gnutools/$TARGET
