[Bug gas/29052] New: LoongArch：binutils2.28 are not compatible with the upcoming gcc release 12

[liuzhensong at loongson dot cn]

https://sourceware.org/bugzilla/show_bug.cgi?id=29052

            Bug ID: 29052
           Summary: LoongArch：binutils2.28 are not compatible with the
                    upcoming gcc release 12
           Product: binutils
           Version: 2.38
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: gas
          Assignee: unassigned at sourceware dot org
          Reporter: liuzhensong at loongson dot cn
  Target Milestone: ---

LoongArch：binutils2.28 are not compatible with the upcoming gcc release 12

Gas used to use parameter -mabi=lp64 (version 2.28), but after
commit(2dbf4f28b85d07e9913105e0a93abbec8a376daa) it uses parameter -mabi=lp64d.
In gcc12, the parameter -mabi=lp64d will be passed to gas.

So can binutils2.28 patched this commit?

> commit 2dbf4f28b85d07e9913105e0a93abbec8a376daa
> Author: liuzhensong <liuzhensong@loongson.cn>
> Date:   Mon Feb 21 14:28:29 2022 +0800
>
>    LoongArch: Update ABI eflag in elf header.
>    
>      Update LoongArch ABI eflag in elf header.
>        ilp32s  0x5
>        ilp32f  0x6
>        ilp32d  0x7
>        lp64s   0x1
>        lp64f   0x2
>        lp64d   0x3
>    
>      bfd/
>        * elfnn-loongarch.c Check object flags while ld.
>    
>      gas/
>        * tc-loongarch.c Write eflag to elf header.
>    
>      include/elf
>            * loongarch.h Define ABI number.

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