[haiku-bugs] [Haiku] #15820: kernel ELF loader don't support separate BSS segment
- From: "Haiku" <trac@xxxxxxxxxxxx>
- To: undisclosed-recipients: ;
- Date: Sun, 22 Mar 2020 21:44:24 -0000
#15820: kernel ELF loader don't support separate BSS segment
---------------------------+------------------------------
Reporter: X512 | Owner: nobody
Type: bug | Status: new
Priority: normal | Milestone: Unscheduled
Component: System/Kernel | Version: R1/Development
Keywords: clang lld | Blocked By:
Blocking: | Has a Patch: 0
Platform: All |
---------------------------+------------------------------
This is hrev53967.
LLVM linker lld produce separate LOAD entry with 0 file size for .bss
section that is not handled by kernel.
Place to be fixed: https://git.haiku-
os.org/haiku/tree/src/system/kernel/elf.cpp#n1966.
Following error is written to serial output:
{{{
error mapping file data: Invalid Argument!
error starting "/boot/system/servers/launch_daemon" error = -1
}}}
Program header of runtime_loader produced by lld:
{{{
readelf -l runtime_loader
Elf file type is DYN (Shared object file)
Entry point 0x16e10
There are 7 program headers, starting at offset 64
Program Headers:
Type Offset VirtAddr PhysAddr
FileSiz MemSiz Flags Align
PHDR 0x0000000000000040 0x0000000000000040 0x0000000000000040
0x0000000000000188 0x0000000000000188 R 0x8
LOAD 0x0000000000000000 0x0000000000000000 0x0000000000000000
0x00000000000330c4 0x00000000000330c4 R E 0x1000
LOAD 0x00000000000330d0 0x00000000000340d0 0x00000000000340d0
0x0000000000001fb0 0x0000000000001fb0 RW 0x1000
LOAD 0x0000000000035080 0x0000000000036080 0x0000000000036080
0x0000000000000000 0x0000000000000161 RW 0x1000
DYNAMIC 0x0000000000034ea0 0x0000000000035ea0 0x0000000000035ea0
0x0000000000000100 0x0000000000000100 RW 0x8
GNU_RELRO 0x0000000000033a08 0x0000000000034a08 0x0000000000034a08
0x0000000000001678 0x0000000000002000 R 0x1
GNU_STACK 0x0000000000000000 0x0000000000000000 0x0000000000000000
0x0000000000000000 0x0000000000000000 RW 0x0
Section to Segment mapping:
Segment Sections...
00
01 .hash .dynsym .dynstr .rela.plt .gnu.hash .rela.dyn .plt .text
.rodata .gcc_except_table .eh_frame
02 .data .got.plt .ctors .data.rel.ro .dynamic .got
03 .bss
04 .dynamic
05 .ctors .data.rel.ro .dynamic .got .bss
06
}}}
--
Ticket URL: <
https://dev.haiku-os.org/ticket/15820>
Haiku <
https://dev.haiku-os.org>
The Haiku operating system.
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