HI20 and LO12_I/LO12_S relocate the absolute address, the range of
offset must in 32-bit.
Signed-off-by: Zong Li <zong@andestech.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
For CALL_PLT, emit the plt entry only when offset is more than 32-bit.
For PCREL_LO12, it uses the location of corresponding HI20 to
get the address of external symbol. It should check the HI20 type
is the PCREL_HI20 or GOT_HI20, because sometime the location will
have two or more relocation types.
For example:
0: 00000797 auipc a5,0x0
0: R_RISCV_ALIGN *ABS*
0: R_RISCV_GOT_HI20 SYMBOL
4: 0007b783 ld a5,0(a5) # 0 <SYMBOL>
4: R_RISCV_PCREL_LO12_I .L0
4: R_RISCV_RELAX *ABS*
Signed-off-by: Zong Li <zong@andestech.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
This patch contains code that is in some way visible to the user:
including via system calls, the VDSO, module loading and signal
handling. It also contains some generic code that is ABI visible.
Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>
Zong Li