https://sourceware.org/bugzilla/show_bug.cgi?id=32370
Bug ID: 32370
Summary: Handle R_RISCV_SET_ULEB128 and R_RISCV_SUB_ULEB128
relocations
Product: elfutils
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: backends
Assignee: unassigned at sourceware dot org
Reporter: mark at klomp dot org
CC: elfutils-devel at sourceware dot org
Target Milestone: ---
Currently elfutils had no knowledge of R_RISCV_SET_ULEB128 and
R_RISCV_SUB_ULEB128 relocations.
These only occur in risc-v ET_REL files (object files or kernel modules).
They are described here:
https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc#uleb128-note
As an example the hello.o, world.o and testfileloc from
tests/run-readelf-loc.sh are attached (build on a risc-v gcc 14.2.0 and
binutils 2.43.1).
eu-readelf -r will show
Relocation section [ 9] '.rela.debug_loclists' for section [ 8]
'.debug_loclists' at offset 0xde0 contains 24 entries:
Offset Type Value Addend Name
0x000000000000000d <INVALID RELOC> 000000000000000000 +0 .LVL0
0x000000000000000d <INVALID RELOC> 000000000000000000 +0 .Ltext0
0x000000000000000e <INVALID RELOC> 0x000000000000000a +0 .LVL2
0x000000000000000e <INVALID RELOC> 000000000000000000 +0 .Ltext0
0x0000000000000012 <INVALID RELOC> 0x000000000000000a +0 .LVL2
0x0000000000000012 <INVALID RELOC> 000000000000000000 +0 .Ltext0
0x0000000000000013 <INVALID RELOC> 0x0000000000000012 +0 .LVL4
0x0000000000000013 <INVALID RELOC> 000000000000000000 +0 .Ltext0
0x000000000000001a <INVALID RELOC> 0x0000000000000012 +0 .LVL4
0x000000000000001a <INVALID RELOC> 000000000000000000 +0 .Ltext0
0x000000000000001b <INVALID RELOC> 0x0000000000000016 +0 .LVL5
0x000000000000001b <INVALID RELOC> 000000000000000000 +0 .Ltext0
0x000000000000001f <INVALID RELOC> 0x0000000000000016 +0 .LVL5
0x000000000000001f <INVALID RELOC> 000000000000000000 +0 .Ltext0
0x0000000000000020 <INVALID RELOC> 0x0000000000000018 +0 .LFE2
0x0000000000000020 <INVALID RELOC> 000000000000000000 +0 .Ltext0
0x0000000000000028 <INVALID RELOC> 0x0000000000000002 +0 .LVL1
0x0000000000000028 <INVALID RELOC> 000000000000000000 +0 .Ltext0
0x0000000000000029 <INVALID RELOC> 0x000000000000000a +0 .LVL2
0x0000000000000029 <INVALID RELOC> 000000000000000000 +0 .Ltext0
0x000000000000002e <INVALID RELOC> 0x000000000000000a +0 .LVL2
0x000000000000002e <INVALID RELOC> 000000000000000000 +0 .Ltext0
0x000000000000002f <INVALID RELOC> 0x000000000000000e +0 .LVL3
0x000000000000002f <INVALID RELOC> 000000000000000000 +0 .Ltext0
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