llvm-project/lld/test/elf/Mips/plt-header-micro.test

# REQUIRES: mips

# Check initialization of .plt header entries
# if all PLT entries use microMIPS encoding.

# Build shared library
# RUN: yaml2obj -format=elf -docnum 1 %s > %t-so.o
# RUN: lld -flavor gnu -target mipsel -shared -o %t.so %t-so.o

# Build executable
# RUN: yaml2obj -format=elf -docnum 2 %s > %t-o.o
# RUN: lld -flavor gnu -target mipsel -e glob -o %t.exe %t-o.o %t.so
# RUN: llvm-objdump -d -mattr=micromips %t.exe | FileCheck -check-prefix=DIS %s
# RUN: llvm-objdump -section-headers %t.exe | FileCheck -check-prefix=EXE %s

# DIS:      Disassembly of section .plt:
# DIS-NEXT: .plt:
# DIS-NEXT:   400170:  80 79 a4 07   addiupc $3, 7824
# DIS-NEXT:   400174:  23 ff 00 00   lw      $25, 0($3)
# DIS-NEXT:   400178:  35 05         subu16  $2, $2, $3
# DIS-NEXT:   40017a:  25 25         srl16   $2, $2, 2
# DIS-NEXT:   40017c:  02 33 fe ff   addiu   $24, $2, -2
# DIS-NEXT:   400180:  ff 0d         move    $15, $ra
# DIS-NEXT:   400182:  f9 45         jalrs16 $25
# DIS-NEXT:   400184:  83 0f         move    $gp, $3
# DIS-NEXT:   400186:  00 0c         nop

# DIS-NEXT:   400188:  00 79 a0 07   addiupc $2, 7808
# DIS-NEXT:   40018c:  22 ff 00 00   lw      $25, 0($2)
# DIS-NEXT:   400190:  99 45         jr16    $25
# DIS-NEXT:   400192:  02 0f         move    $24, $2

# EXE: Sections:
# EXE: Idx Name          Size      Address          Type
# EXE:   6 .plt          00000024 0000000000400170 TEXT DATA
# EXE:  10 .got.plt      0000000c 0000000000402000 DATA

# so.o
---
FileHeader:
  Class:   ELFCLASS32
  Data:    ELFDATA2LSB
  Type:    ET_REL
  Machine: EM_MIPS
  Flags:   [EF_MIPS_PIC, EF_MIPS_CPIC, EF_MIPS_ABI_O32, EF_MIPS_ARCH_32]

Sections:
  - Name:         .text
    Type:         SHT_PROGBITS
    Size:         0x0C
    AddressAlign: 16
    Flags:        [SHF_EXECINSTR, SHF_ALLOC]

Symbols:
  Global:
    - Name:    T1
      Section: .text
      Type:    STT_FUNC
      Value:   0x0
      Size:    4

# o.o
---
FileHeader:
  Class:           ELFCLASS32
  Data:            ELFDATA2LSB
  Type:            ET_REL
  Machine:         EM_MIPS
  Flags:           [ EF_MIPS_PIC, EF_MIPS_CPIC,
                     EF_MIPS_ABI_O32, EF_MIPS_ARCH_32R2, EF_MIPS_MICROMIPS ]
Sections:
  - Name:            .text
    Type:            SHT_PROGBITS
    Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
    AddressAlign:    0x04
    Content:         '000000000000000000f4000000000000f400000000000000f400000000000000'
#                                       jal .text     jal glob        jal T1
  - Name:            .rel.text
    Type:            SHT_REL
    Link:            .symtab
    AddressAlign:    0x04
    Info:            .text
    Relocations:
      - Offset:          0x08
        Symbol:          .text
        Type:            R_MICROMIPS_26_S1
      - Offset:          0x10
        Symbol:          glob
        Type:            R_MICROMIPS_26_S1
      - Offset:          0x18
        Symbol:          T1
        Type:            R_MICROMIPS_26_S1

Symbols:
  Local:
    - Name:            loc
      Section:         .text
      Value:           0x10
      Other:           [ STO_MIPS_MICROMIPS ]
    - Name:            .text
      Type:            STT_SECTION
      Section:         .text
  Global:
    - Name:            glob
      Section:         .text
      Other:           [ STO_MIPS_MICROMIPS ]
    - Name:            T1
...