[PATCH] riscv: add support for static PIE

[Adhemerval Zanella Netto]

On 22/01/24 06:35, Andreas Schwab wrote:
> On Jan 18 2024, Adhemerval Zanella Netto wrote:
> 
>> Otherwise the startup code will trigger an invalid memory access (since the
>> stack protector is not yet initialized):
>>
>> $ gdb ./elf/ldconfig
>> [...]
>> (gdb) r
>> [...]
>> (gdb) disas
>> Dump of assembler code for function memset:
>>    0x00007ffff7f6e3ec <+0>:     addi    sp,sp,-32
>>    0x00007ffff7f6e3ee <+2>:     auipc   a7,0x89
>>    0x00007ffff7f6e3f2 <+6>:     ld      a7,2018(a7) # 0x7ffff7ff7bd0
>> => 0x00007ffff7f6e3f6 <+10>:    ld      a5,0(a7)
> 
> I don't see that with -fstack-protector-strong.
> 

It happens with -fstack-protector-all, which although it does not make much
sense to be used it is still supported.