On Thu, Mar 19, 2009 at 5:50 PM, Groleo Marius <[email protected]> wrote: > Hi, > > I'm currently having trouble getting uClibc 0.9.30.1 to work on m68k/m5485 > processor. It gets stuck when trying to load the first shared library, > libgcc_s.so. > In my attempt to debug the problem I added only _dl_dprintf calls. > All the debug lines are prefixed by filename and line. > > I tried to watch the trace of any parameter used in any _dl_mmap call. > I identified these parameters as being(sorry for the long list): > minvma, maxvma, libaddr, status, piclibc, mmap protection flags, > tryaddr, piclib2map, ppnt->p_vaddr, dynamic_addr, lib_loadaddr. > > The first mapping is done here[ldso/ldso/dl-elf.c:468 > libaddr=status'0x80016000'] > requesting 0xe000 bytes. The second mapping is tried > here[ldso/ldso/dl-elf.c:586 status'0xffffffff'] > but fails. The reason why I *think* it fails is overlapping memory areas. > Here, ldso/ldso/dl-elf.c:563 tryaddr'0x80023000' the address where a mapping > is needed is 0x80023000, but if you add 0x80016000(the first mapping) with > 0xE000 you get 0x80024000, which overlaps over the second solicited > address(0x80023000). > > Is this the intended behaviour? > > Attached you will find the debug.log and the patch for ldso/ldso/dl-elf.c > > Many thanks.
Forgot the readelf output: mariusn ~ > m68k-unknown-linux-uclibc-readelf -l ./libgcc_s.so.2 Elf file type is DYN (Shared object file) Entry point 0x20d4 There are 5 program headers, starting at offset 52 Program Headers: Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align LOAD 0x000000 0x00000000 0x00000000 0x0b108 0x0b108 R E 0x2000 LOAD 0x00b108 0x0000d108 0x0000d108 0x00264 0x003b8 RW 0x2000 DYNAMIC 0x00b11c 0x0000d11c 0x0000d11c 0x000d0 0x000d0 RW 0x4 GNU_EH_FRAME 0x00a59c 0x0000a59c 0x0000a59c 0x001cc 0x001cc R 0x4 GNU_STACK 0x000000 0x00000000 0x00000000 0x00000 0x00000 RWE 0x4 Section to Segment mapping: Segment Sections... 00 .hash .dynsym .dynstr .gnu.version .gnu.version_d .rela.dyn .rela.plt .init .plt .text .fini .rodata .eh_frame_hdr .eh_frame 01 .ctors .dtors .jcr .dynamic .got .data .bss 02 .dynamic 03 .eh_frame_hdr 04 -- Regards, Groleo! _______________________________________________ uClibc mailing list [email protected] http://lists.busybox.net/mailman/listinfo/uclibc
