llvm-project/llvm/test/MC/Mips/sort-relocation-table.s

126 lines
3.5 KiB
ArmAsm

# RUN: llvm-mc -filetype=obj -arch mipsel %s | llvm-readobj -r | FileCheck %s
# Test the order of records in the relocation table.
# *HI16 and local *GOT16 relocations should be immediately followed by the
# corresponding *LO16 relocation against the same symbol.
#
# We try to implement the same semantics as gas, ie. to order the relocation
# table the same way as gas.
#
# gnu as command line:
# mips-linux-gnu-as -EL sort-relocation-table.s -o sort-relocation-table.o
#
# TODO: Add mips16 and micromips tests.
# Note: offsets are part of expected output, so it's simpler to add new test
# cases at the bottom of the file.
# CHECK: Relocations [
# CHECK-NEXT: {
# Put HI before LO.
addiu $2,$2,%lo(sym1)
lui $2,%hi(sym1)
# CHECK-NEXT: 0x4 R_MIPS_HI16 sym1
# CHECK-NEXT: 0x0 R_MIPS_LO16 sym1
# When searching for a matching LO, ignore LOs against a different symbol.
addiu $2,$2,%lo(sym2)
lui $2,%hi(sym2)
addiu $2,$2,%lo(sym2_d)
# CHECK-NEXT: 0xC R_MIPS_HI16 sym2
# CHECK-NEXT: 0x8 R_MIPS_LO16 sym2
# CHECK-NEXT: 0x10 R_MIPS_LO16 sym2_d
# Match HI with 2nd LO because it has higher offset (than the 1st LO).
addiu $2,$2,%lo(sym3)
addiu $2,$2,%lo(sym3)
lui $2,%hi(sym3)
# CHECK-NEXT: 0x14 R_MIPS_LO16 sym3
# CHECK-NEXT: 0x1C R_MIPS_HI16 sym3
# CHECK-NEXT: 0x18 R_MIPS_LO16 sym3
# HI is already followed by a matching LO, so don't look further, ie. ignore the
# "free" LO with higher offset.
lui $2,%hi(sym4)
addiu $2,$2,%lo(sym4)
addiu $2,$2,%lo(sym4)
# CHECK-NEXT: 0x20 R_MIPS_HI16 sym4
# CHECK-NEXT: 0x24 R_MIPS_LO16 sym4
# CHECK-NEXT: 0x28 R_MIPS_LO16 sym4
# Match 2nd HI with 2nd LO, since it's the one with highest offset among the
# "free" ones.
addiu $2,$2,%lo(sym5)
addiu $2,$2,%lo(sym5)
lui $2,%hi(sym5)
addiu $2,$2,%lo(sym5)
lui $2,%hi(sym5)
# CHECK-NEXT: 0x2C R_MIPS_LO16 sym5
# CHECK-NEXT: 0x3C R_MIPS_HI16 sym5
# CHECK-NEXT: 0x30 R_MIPS_LO16 sym5
# CHECK-NEXT: 0x34 R_MIPS_HI16 sym5
# CHECK-NEXT: 0x38 R_MIPS_LO16 sym5
# When more HIs are matched with one LO, sort them in descending order of
# offset.
addiu $2,$2,%lo(sym6)
lui $2,%hi(sym6)
lui $2,%hi(sym6)
# CHECK-NEXT: 0x48 R_MIPS_HI16 sym6
# CHECK-NEXT: 0x44 R_MIPS_HI16 sym6
# CHECK-NEXT: 0x40 R_MIPS_LO16 sym6
# sym7 is a local symbol, so GOT relocation against it needs a matching LO.
sym7:
addiu $2,$2,%lo(sym7)
lui $2,%got(sym7)
# CHECK-NEXT: 0x50 R_MIPS_GOT16 sym7
# CHECK-NEXT: 0x4C R_MIPS_LO16 sym7
# sym8 is not a local symbol, don't look for a matching LO for GOT.
.global sym8
addiu $2,$2,%lo(sym8)
lui $2,%got(sym8)
# CHECK-NEXT: 0x54 R_MIPS_LO16 sym8
# CHECK-NEXT: 0x58 R_MIPS_GOT16 sym8
# A small combination of previous checks.
symc1:
addiu $2,$2,%lo(symc1)
addiu $2,$2,%lo(symc1)
addiu $2,$2,%lo(symc1)
lui $2,%hi(symc1)
lui $2,%got(symc1)
addiu $2,$2,%lo(symc2)
lui $2,%hi(symc1)
lui $2,%hi(symc1)
lui $2,%got(symc2)
lui $2,%hi(symc1)
addiu $2,$2,%lo(symc1)
addiu $2,$2,%lo(symc2)
lui $2,%hi(symc1)
lui $2,%hi(symc1)
# CHECK-NEXT: 0x78 R_MIPS_HI16 symc1
# CHECK-NEXT: 0x74 R_MIPS_HI16 symc1
# CHECK-NEXT: 0x6C R_MIPS_GOT16 symc1
# CHECK-NEXT: 0x68 R_MIPS_HI16 symc1
# CHECK-NEXT: 0x5C R_MIPS_LO16 symc1
# CHECK-NEXT: 0x8C R_MIPS_HI16 symc1
# CHECK-NEXT: 0x60 R_MIPS_LO16 symc1
# CHECK-NEXT: 0x90 R_MIPS_HI16 symc1
# CHECK-NEXT: 0x64 R_MIPS_LO16 symc1
# CHECK-NEXT: 0x70 R_MIPS_LO16 symc2
# CHECK-NEXT: 0x7C R_MIPS_GOT16 symc2
# CHECK-NEXT: 0x80 R_MIPS_HI16 symc1
# CHECK-NEXT: 0x84 R_MIPS_LO16 symc1
# CHECK-NEXT: 0x88 R_MIPS_LO16 symc2