Executable file loading from weaver.elf

[Sven Fülster]

Hi Norman,

my nice plan for supporting debugging by linking my executable to 
another address failed.

I've added

--
LD_SCRIPT    = $(call select_from_repositories,src/platform/genode.ld)
CXX_LINK_OPT = -static -nostdlib -Wl,-nostdlib
CXX_LINK_OPT += -Wl,-T$(LD_SCRIPT) -Wl,-Ttext=0x01000000
--
to its target.mk. That worked fine.

--
kamikaze at ...22...:~/okl4/okl4_2.1.1-fix.7/genode-okl4-x86$ readelf 
-S bin/test-dde_linux26_net
There are 30 section headers, starting at offset 0x4ec040:

Section Headers:
  [Nr] Name              Type            Addr     Off    Size   ES Flg 
Lk Inf Al
  [ 0]                   NULL            00000000 000000 000000 00      
0   0  0
  [ 1] .text             PROGBITS        01000000 082000 06c1cc 00  AX  
0   0 128
  [ 2] .altinstr_replace PROGBITS        0106c1cc 0ee1cc 00011d 00  AX  
0   0  1
  [ 3] .sched.text       PROGBITS        0106c2f0 0ee2f0 000f26 00  AX  
0   0 16
  [ 4] .kprobes.text     PROGBITS        0106d216 0ef216 000058 00  AX  
0   0  1
  [ 5] .spinlock.text    PROGBITS        0106d26e 0ef26e 0001e7 00  AX  
0   0  1
  [ 6] .fixup            PROGBITS        0106d455 0ef455 00002a 00  AX  
0   0  1
  [ 7] __ex_table        PROGBITS        0106d47f 0ef47f 000130 00   A  
0   0  1
  [ 8] .data             PROGBITS        0106e000 0f0000 009cd0 00  WA  
0   0 128
  [ 9] .got              PROGBITS        01077cd0 0f9cd0 000088 04  WA  
0   0  4
  [10] .got.plt          PROGBITS        01077d58 0f9d58 00000c 04  WA  
0   0  4
  [11] .init.setup       PROGBITS        01077d64 0f9d64 000030 00  WA  
0   0  4
  [12] .eh_frame         PROGBITS        01077d94 0f9d94 006c30 00   A  
0   0  4
  [13] .gcc_except_table PROGBITS        0107e9c4 1009c4 0012e0 00   A  
0   0  4
  [14] .altinstructions  PROGBITS        0107fca4 101ca4 000473 00   A  
0   0  4
  [15] .smp_locks        PROGBITS        01080118 102118 0004ec 00   A  
0   0  4
  [16] __param           PROGBITS        01080604 102604 000208 00   A  
0   0  4
  [17] .bss              NOBITS          01080880 10280c 01e4e0 00  WA  
0   0 128
  [18] .debug_abbrev     PROGBITS        00000000 10280c 0236a2 00      
0   0  1
  [19] .debug_info       PROGBITS        00000000 125eae 2be0b6 00      
0   0  1
  [20] .debug_line       PROGBITS        00000000 3e3f64 03d9ac 00      
0   0  1
  [21] .debug_frame      PROGBITS        00000000 421910 01ff78 00      
0   0  4
  [22] .debug_loc        PROGBITS        00000000 441888 06426e 00      
0   0  1
  [23] .debug_pubnames   PROGBITS        00000000 4a5af6 015b4b 00      
0   0  1
  [24] .debug_aranges    PROGBITS        00000000 4bb648 003858 00      
0   0  8
  [25] .debug_str        PROGBITS        00000000 4beea0 029bf7 01  MS  
0   0  1
  [26] .debug_ranges     PROGBITS        00000000 4e8a98 003460 00      
0   0  8
  [27] .shstrtab         STRTAB          00000000 4ebef8 000147 00      
0   0  1
  [28] .symtab           SYMTAB          00000000 4ec4f0 011760 10     
29 1788  4
  [29] .strtab           STRTAB          00000000 4fdc50 01b474 00      
0   0  1
--

But then, the mapping of .text and .data sections failed during startup. 
The same happened when I tried 0x04000000 as base address.

--
[init] Genode::addr_t _setup_elf(Genode::Parent_capability, 
Genode::Dataspace_capability, Genode::Ram_session&, 
Genode::Rm_session&): addresses differ after attach (addr=1000000 out_ptr=0)
[init] Genode::addr_t _setup_elf(Genode::Parent_capability, 
Genode::Dataspace_capability, Genode::Ram_session&, 
Genode::Rm_session&): addresses differ after attach (addr=106e000 out_ptr=0)
Start thread ip=10545d4 sp=0, pd=4, tid=0
no RM attachment (READ pf_addr=0 pf_ip=10545d4 from 04)
--

Is there anything else I must know about the startup process?

Sven
--
Sven Fülster