[haiku-bugs] [Haiku] #15819: haiku_loader ELF loader don't support separate BSS segment
- From: "Haiku" <trac@xxxxxxxxxxxx>
- To: undisclosed-recipients: ;
- Date: Sun, 22 Mar 2020 21:38:55 -0000
#15819: haiku_loader ELF loader don't support separate BSS segment
-----------------------+------------------------------
Reporter: X512 | Owner: nobody
Type: bug | Status: new
Priority: normal | Milestone: Unscheduled
Component: - General | 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 haiku_loader.
Place to be fixed: https://git.haiku-
os.org/haiku/tree/src/system/boot/loader/elf.cpp#n204.
Following error is written to serial output:
{{{
load kernel kernel_x86_64...
elf: rw already handled!
unhandled pheader type 0x6474e552
unhandled pheader type 0x6474e551
relocating kernel failed: ffffffff!
}}}
Program header of kernel produced by lld:
{{{
readelf -l kernel_x86_64
Elf file type is EXEC (Executable file)
Entry point 0xffffffff8006c710
There are 8 program headers, starting at offset 64
Program Headers:
Type Offset VirtAddr PhysAddr
FileSiz MemSiz Flags Align
PHDR 0x0000000000000040 0xffffffff80000040 0xffffffff80000040
0x00000000000001c0 0x00000000000001c0 R 0x8
INTERP 0x0000000000000200 0xffffffff80000200 0xffffffff80000200
0x000000000000000a 0x000000000000000a R 0x1
[Requesting program interpreter: /dev/null]
LOAD 0x0000000000000000 0xffffffff80000000 0xffffffff80000000
0x00000000001a8498 0x00000000001a8498 R E 0x1000
LOAD 0x00000000001a9000 0xffffffff801a9000 0xffffffff801a9000
0x0000000000001bf8 0x0000000000001bf8 RW 0x1000
LOAD 0x00000000001aac00 0xffffffff801aac00 0xffffffff801aac00
0x0000000000000000 0x000000000003c5e0 RW 0x1000
DYNAMIC 0x00000000001aab38 0xffffffff801aab38 0xffffffff801aab38
0x00000000000000c0 0x00000000000000c0 RW 0x8
GNU_RELRO 0x00000000001aa9c0 0xffffffff801aa9c0 0xffffffff801aa9c0
0x0000000000000238 0x0000000000001000 R 0x1
GNU_STACK 0x0000000000000000 0x0000000000000000 0x0000000000000000
0x0000000000000000 0x0000000000000000 RW 0x0
Section to Segment mapping:
Segment Sections...
00
01 .interp
02 .interp .hash .dynsym .dynstr .gnu.version .gnu.version_d
.gnu.hash .text .rodata .altcodepatch
03 .data _haiku_revision .ctors .got .dynamic
04 .bss
05 .dynamic
06 .ctors .got .dynamic
07
}}}
--
Ticket URL: <
https://dev.haiku-os.org/ticket/15819>
Haiku <
https://dev.haiku-os.org>
The Haiku operating system.
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