diff options
| -rw-r--r-- | lld/ELF/Arch/Mips.cpp | 13 | ||||
| -rw-r--r-- | lld/test/ELF/mips-26-n32-n64.s | 35 |
2 files changed, 46 insertions, 2 deletions
diff --git a/lld/ELF/Arch/Mips.cpp b/lld/ELF/Arch/Mips.cpp index 0c1ca5c846a..495e2567006 100644 --- a/lld/ELF/Arch/Mips.cpp +++ b/lld/ELF/Arch/Mips.cpp @@ -278,15 +278,24 @@ template <class ELFT> void MIPS<ELFT>::writePltHeader(uint8_t *Buf) const { write32<E>(Buf + 4, 0x8dd90000); // lw $25, %lo(&GOTPLT[0])($14) write32<E>(Buf + 8, 0x25ce0000); // addiu $14, $14, %lo(&GOTPLT[0]) write32<E>(Buf + 12, 0x030ec023); // subu $24, $24, $14 + write32<E>(Buf + 16, 0x03e07825); // move $15, $31 + write32<E>(Buf + 20, 0x0018c082); // srl $24, $24, 2 + } else if (ELFT::Is64Bits) { + write32<E>(Buf, 0x3c0e0000); // lui $14, %hi(&GOTPLT[0]) + write32<E>(Buf + 4, 0xddd90000); // ld $25, %lo(&GOTPLT[0])($14) + write32<E>(Buf + 8, 0x25ce0000); // addiu $14, $14, %lo(&GOTPLT[0]) + write32<E>(Buf + 12, 0x030ec023); // subu $24, $24, $14 + write32<E>(Buf + 16, 0x03e07825); // move $15, $31 + write32<E>(Buf + 20, 0x0018c0c2); // srl $24, $24, 3 } else { write32<E>(Buf, 0x3c1c0000); // lui $28, %hi(&GOTPLT[0]) write32<E>(Buf + 4, 0x8f990000); // lw $25, %lo(&GOTPLT[0])($28) write32<E>(Buf + 8, 0x279c0000); // addiu $28, $28, %lo(&GOTPLT[0]) write32<E>(Buf + 12, 0x031cc023); // subu $24, $24, $28 + write32<E>(Buf + 16, 0x03e07825); // move $15, $31 + write32<E>(Buf + 20, 0x0018c082); // srl $24, $24, 2 } - write32<E>(Buf + 16, 0x03e07825); // move $15, $31 - write32<E>(Buf + 20, 0x0018c082); // srl $24, $24, 2 write32<E>(Buf + 24, 0x0320f809); // jalr $25 write32<E>(Buf + 28, 0x2718fffe); // subu $24, $24, 2 diff --git a/lld/test/ELF/mips-26-n32-n64.s b/lld/test/ELF/mips-26-n32-n64.s new file mode 100644 index 00000000000..2e24873332a --- /dev/null +++ b/lld/test/ELF/mips-26-n32-n64.s @@ -0,0 +1,35 @@ +# Check R_MIPS_26 relocation handling in case of N64 ABIs. + +# RUN: llvm-mc -filetype=obj -triple=mips64-unknown-linux \ +# RUN: %S/Inputs/mips-dynamic.s -o %t-so.o +# RUN: ld.lld %t-so.o -shared -o %t.so +# RUN: llvm-mc -filetype=obj -triple=mips64-unknown-linux %s -o %t.o +# RUN: ld.lld %t.o %t.so -o %t.exe +# RUN: llvm-objdump -d %t.exe | FileCheck %s + +# REQUIRES: mips + +# CHECK: Disassembly of section .text: +# CHECK-NEXT: __start: +# CHECK-NEXT: 20000: 0c 00 80 0c jal 131120 +# CHECK-NEXT: 20004: 00 00 00 00 nop +# CHECK-NEXT: Disassembly of section .plt: +# CHECK-NEXT: .plt: +# CHECK-NEXT: 20010: 3c 0e 00 03 lui $14, 3 +# CHECK-NEXT: 20014: dd d9 00 08 ld $25, 8($14) +# CHECK-NEXT: 20018: 25 ce 00 08 addiu $14, $14, 8 +# CHECK-NEXT: 2001c: 03 0e c0 23 subu $24, $24, $14 +# CHECK-NEXT: 20020: 03 e0 78 25 move $15, $ra +# CHECK-NEXT: 20024: 00 18 c0 c2 srl $24, $24, 3 +# CHECK-NEXT: 20028: 03 20 f8 09 jalr $25 +# CHECK-NEXT: 2002c: 27 18 ff fe addiu $24, $24, -2 +# CHECK-NEXT: 20030: 3c 0f 00 03 lui $15, 3 +# CHECK-NEXT: 20034: 8d f9 00 18 lw $25, 24($15) +# CHECK-NEXT: 20038: 03 20 00 08 jr $25 +# CHECK-NEXT: 2003c: 25 f8 00 18 addiu $24, $15, 24 + + .text + .option pic0 + .global __start +__start: + jal foo0 |
