Comments (4)
I guess that's more like an intermediate relocation used for the linker relaxation process, like R_RISCV_GPREL_[IS]
relative relocation ( #205), because I also don't believe that's can be useful to let user use c.lui
with this relocation directly, so we should consider deprecate and use this relocation as internal intermediate relocation only.
@Nelson1225 @MaskRay @jrtc27 any thought for this?
from riscv-elf-psabi-doc.
If there's no assembly syntax to emit that relocation and the relocation is just a binutils internal relocation, we probably should remove it altogether from the psABI. It should be safe to do so.
from riscv-elf-psabi-doc.
I guess that's more like an intermediate relocation used for the linker relaxation process, like R_RISCV_GPREL_[IS] relative relocation ( #205), because I also don't believe that's can be useful to let user use c.lui with this relocation directly, so we should consider deprecate and use this relocation as internal intermediate relocation only.
Yap, user cannot use this relocation directly in GNU assembler. We only accept immediate value in c.lui in gas, without any modifiers. However, it's also really rare to see this relaxation in ld, since we should reserve the maxpagesize and commongaesize for data segment alignment (pr27566, from Jim's comment). The pagesize usually occupied most of the rvc_lui space...
If there's no assembly syntax to emit that relocation and the relocation is just a binutils internal relocation, we probably should remove it altogether from the psABI. It should be safe to do so.
Looks good to me :-)
from riscv-elf-psabi-doc.
Removing R_RISCV_RVC_LUI
looks good, like we removed R_RISCV_GNU_VTINHERIT
, R_RISCV_GNU_VTENTRY
, R_RISCV_GPREL_I
, R_RISCV_GPREL_S
that were not produced by assemblers.
from riscv-elf-psabi-doc.
Related Issues (20)
- Clarification of rules for flattening structs containing arrays of empty records HOT 3
- Specify relocation overflow checks HOT 1
- Specify a platform reserved register HOT 20
- Should calling convention also define ptrdiff_t? HOT 1
- Should we use lw/sw in push pop when we used ILP32, whether it's RV32 or RV64 HOT 3
- Operation semantics of __bf16 datatype HOT 2
- representation of GNU C fixed-size vectors HOT 4
- Define GOT-Relative data relocation HOT 8
- Embedding R_RISCV_RELAX to another relocations HOT 7
- Define gp(x3) as global VLENB HOT 4
- Bitfield integer calling convention garbled
- Calling convention uses RV64GQ without definition or reference HOT 3
- Calling convention description of va_list et al. are unclear HOT 2
- Interpretation of floating-point types
- Linux ABI for Pointer Masking HOT 19
- New ABI for stack layout and frame pointer scheme HOT 4
- Change branch from "master" to "main" HOT 1
- Add CREL support HOT 3
- Add RELR support HOT 6
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from riscv-elf-psabi-doc.