tablejump section (__jvt_base$) need be aligned on a 64-byte boundary

Placeholder github Source User
2024-08-16T00:38:09Z

Hi,
The Zc instruction set extension spec (Zc* v1.0) said that ZCMT jump table must be a minimum of 64-byte aligned, but in the branch development-eddf4096b97, the tablejump section was defined to be aligned on a 4-byte boundary. The detailed code is as follows (/bfd/elfnn-riscv.c bfd_elf_riscv_make_tablejump_section):

```
if (sec == NULL
|| !bfd_set_section_alignment (sec, bed->s->log_file_align)
|| !bfd_set_section_size (sec, 256 * RISCV_ELF_WORD_BYTES))
return false;
htab->table_jump_htab->tablejump_sec = sec;
htab->table_jump_htab->tablejump_sec_owner = abfd;
}
```
**bfd_set_section_alignment (sec, bed->s->log_file_align)**
In my test, **bfd_set_section_alignment (sec, 6)** can work normally, please help me see if this modification is appropriate. Thank you for your time.