https://sourceware.org/bugzilla/show_bug.cgi?id=30690
Bug ID: 30690
Summary: bpf: relax short jumps to V4 long jumps
Product: binutils
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: gas
Assignee: unassigned at sourceware dot org
Reporter: jose.marchesi at oracle dot com
Target Milestone: ---
The BPF assembler shall be expanded to support relaxing short (16-bit disp)
jump instructions to 32-bit disp long jump instructions.
The V4 BPF ISA introduces an unconditional jump instruction that uses a 32-bit
displacement immediate.
These relaxations are possible:
Unconditional jump:
ja disp16 -> jal disp32
Conditional jumps:
jXX disp16 -> jXX +1; ja +1; jal disp32
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