How ld decides offset for relocation type MIPS GPREL16?
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Hi, I'm writing a runtime linker for MIPS32 arch, and have problems with GPREL16 relocation type. For instance, the compiler/assembler outputs a relocatable object with an instruction as below : ff838018 sd v1,-32744(gp) The symbol involved here belongs to .sbss section, and is set to runtime address 0x12b119e8. Given that _gp is 0x12b12220, and .sbss section starts at 0x12b11868. ( The values are read from target ELF object.) After relocated by ld, the instruction becomes: ff83f7c8 sd v1,-2104(gp) My question is: How ld calculates the offset 0xf7c8? My guess is that 0xf7c8 is calculated by _gp, .sbss address and original offset 0x8018. And I believe the related code is in routine _bfd_mips_elf_gprel16_reloc of binutils/src/bfd/elf32-mips.c. But I'm not able to figure out how this is calculated. Could someone give a hand? thanks & regards, -Qinglai