22 Load Global Address

The following example shows the lga pseudoinstruction which is used to load global symbol addresses:

  lga a0, msg + 1

This generates the following instructions and relocations as seen by objdump (for RV64; RV32 will use lw instead of ld):

0000000000000000 \<.text>:
   0: 00000517            auipc a0,0x0
      0: R_RISCV_GOT_HI20 msg+0x1
   4: 00053503            ld  a0,0(a0) # 0 \<.text>
      4: R_RISCV_PCREL_LO12_I .L0