src/llvm-project/lld/test/ELF/loongarch-interlink.test

# REQUIRES: loongarch
# RUN: rm -rf %t && split-file %s %t

# RUN: yaml2obj %t/blob.yaml -o %t/blob.o
# RUN: yaml2obj %t/v0-lp64d.yaml -o %t/v0-lp64d.o
# RUN: llvm-mc --filetype=obj --triple=loongarch64-unknown-gnu %t/start.s -o %t/v1-lp64d.o
# RUN: llvm-mc --filetype=obj --triple=loongarch64-unknown-gnusf %t/start.s -o %t/v1-lp64s.o
# RUN: llvm-mc --filetype=obj --triple=loongarch64-unknown-gnu %t/bar.s -o %t/v1-b-lp64d.o

## Check that binary input results in e_flags=0 output.
# RUN: ld.lld -m elf64loongarch -b binary %t/blob.bin -o %t/blob.out
# RUN: llvm-readobj -h %t/blob.out | FileCheck --check-prefix=EMPTY %s
# EMPTY:      Flags [
# EMPTY-NEXT: ]

## Check that interlink between e_flags=0 and normal input (that contain code)
## is allowed.
## Also check that the e_flags logic work as intended regardless of input file
## order.
# RUN: ld.lld %t/blob.o %t/v1-lp64d.o -o %t/v1-lp64d.out
# RUN: ld.lld %t/v1-lp64s.o %t/blob.o -o %t/v1-lp64s.out
# RUN: llvm-readobj -h %t/v1-lp64d.out | FileCheck --check-prefix=V1-LP64D %s
# RUN: llvm-readobj -h %t/v1-lp64s.out | FileCheck --check-prefix=V1-LP64S %s
# V1-LP64D: Flags [ (0x43)
# V1-LP64S: Flags [ (0x41)

## Check that interlink between different ABIs is disallowed.
# RUN: not ld.lld %t/v1-lp64s.o %t/v1-b-lp64d.o -o /dev/null 2>&1 | FileCheck -DFILE1=%t/v1-b-lp64d.o -DFILE2=%t/v1-lp64s.o --check-prefix=INTERLINK-ERR %s
# INTERLINK-ERR: error: [[FILE1]]: cannot link object files with different ABI from [[FILE2]]

## Check that interlink between different object ABI versions is disallowed.
# RUN: not ld.lld %t/v0-lp64d.o %t/v1-b-lp64d.o %t/blob.o -o /dev/null 2>&1 | FileCheck -DFILE=%t/v0-lp64d.o --check-prefix=VERSION-ERR %s
# VERSION-ERR: error: [[FILE]]: unsupported object file ABI version

#--- blob.bin
BLOB

#--- blob.yaml
--- !ELF
FileHeader:
  Class:           ELFCLASS64
  Data:            ELFDATA2LSB
  Type:            ET_REL
  Machine:         EM_LOONGARCH
  SectionHeaderStringTable: .strtab
Sections:
  - Name:            .data
    Type:            SHT_PROGBITS
    Flags:           [ SHF_WRITE, SHF_ALLOC ]
    AddressAlign:    0x1
    Content:         424C4F42
Symbols:
  - Name:            blob
    Section:         .data
    Binding:         STB_GLOBAL

#--- v0-lp64d.yaml
--- !ELF
FileHeader:
  Class:           ELFCLASS64
  Data:            ELFDATA2LSB
  Type:            ET_REL
  Machine:         EM_LOONGARCH
  Flags:           [ EF_LOONGARCH_ABI_DOUBLE_FLOAT ]
  SectionHeaderStringTable: .strtab
Sections:
  - Name:            .text
    Type:            SHT_PROGBITS
    Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
    AddressAlign:    0x4
    Content:         0000a002

#--- start.s
.global _start
_start:
    la $a0, blob
    ld.b $a0, $a0, 0
    li.w $a7, 94
    syscall 0

#--- bar.s
bar:
    move $a0, $zero
    ret