https://sourceware.org/bugzilla/show_bug.cgi?id=28509
Bug ID: 28509
Summary: ld riscv: R_RISCV_JAL referencing a preemptible symbol
should be rejected
Product: binutils
Version: unspecified
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: i at maskray dot me
Target Milestone: ---
j __sigsetjmp
.globl __sigsetjmp
__sigsetjmp:
ret
riscv64-linux-gnu-as a.s -o a.o
riscv64-linux-gnu-ld -shared a.o -o a.so # should fail
The default visibility __sigsetjmp definition is preemptible by default when
linking a shared object. Such a symbol cannot be referenced by non-PLT by-GOT.
% riscv64-linux-gnu-objdump -d a.so
a.so: file format elf64-littleriscv
Disassembly of section .text:
00000000000001b8 <__sigsetjmp-0x4>:
1b8: 0040006f j 1bc <__sigsetjmp>
00000000000001bc <__sigsetjmp>:
1bc: 00008067 ret
On many architectures there is a diagnostic like R_X86_64_PC32.
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