[Bug 207631] rtld requires the first PT_LOAD segment to be .text and is incompatible with output produced by lld
bugzilla-noreply at freebsd.org
bugzilla-noreply at freebsd.org
Wed Mar 2 03:58:05 UTC 2016
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=207631
--- Comment #1 from Ed Maste <emaste at freebsd.org> ---
For reference here is the segment layout currently produced by lld:
% readelf -l bin/sh
Elf file type is EXEC (Executable file)
Entry point 0x19000
There are 10 program headers, starting at offset 64
Program Headers:
Type Offset VirtAddr PhysAddr
FileSiz MemSiz Flags Align
PHDR 0x0000000000000040 0x0000000000010040 0x0000000000010040
0x0000000000000230 0x0000000000000230 R 8
INTERP 0x0000000000000270 0x0000000000010270 0x0000000000010270
0x0000000000000015 0x0000000000000015 R 1
[Requesting program interpreter: /libexec/ld-elf.so.1]
LOAD 0x0000000000000000 0x0000000000010000 0x0000000000010000
0x000000000000875c 0x000000000000875c R 1000
LOAD 0x0000000000009000 0x0000000000019000 0x0000000000019000
0x000000000001b220 0x000000000001b220 R E 1000
LOAD 0x0000000000025000 0x0000000000035000 0x0000000000035000
0x0000000000001500 0x0000000000003a50 RW 1000
DYNAMIC 0x0000000000025028 0x0000000000035028 0x0000000000035028
0x0000000000000130 0x0000000000000130 RW 8
GNU_RELRO 0x0000000000025000 0x0000000000035000 0x0000000000035000
0x0000000000000160 0x0000000000000160 R 1
GNU_EH_FRAME 0x0000000000007f18 0x0000000000017f18 0x0000000000017f18
0x0000000000000844 0x0000000000000844 R 1
GNU_STACK 0x0000000000000000 0x0000000000000000 0x0000000000000000
0x0000000000000000 0x0000000000000000 RW 0
NOTE 0x0000000000000288 0x0000000000010288 0x0000000000010288
0x0000000000000030 0x0000000000000030 R 4
Section to Segment mapping:
Segment Sections...
00
01 .interp
02 .interp .note.tag .rodata .eh_frame .rodata .rodata .rodata .dynsym
.gnu.hash .hash .dynstr .rela.dyn .rela.plt .eh_frame_hdr
03 .text .init .fini .plt
04 .ctors .dtors .jcr .dynamic .got .data .got.plt .bss
05 .dynamic
06 .ctors .dtors .jcr .dynamic .got
07 .eh_frame_hdr
08
09 .note.tag
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