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llvm-project/lld/test/elf/Mips/e-flags-merge-7.test

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[Mips] Check ELF flags to prevent linking of incompatible files 1. The path checks ELF header flags to prevent linking of incompatible files. For example we do not allow to link files with different ABI, -mnan flags, some combination of target CPU etc. 2. The patch merge ELF header flags from input object files to put their combination to the generated file. For example, if some input files have EF_MIPS_NOREORDER flag we need to put this flag to the output file header. I use the `parseFile()` (not `canParse()`) method because in case of recognition of incorrect input flags combination we should show detailed error message and stop the linking process and should not try to use another `Reader`. llvm-svn: 221439
2014-11-06 13:53:10 +08:00
# Check that LLD does not allow to mix nan2008 and legacy MIPS object files.
# RUN: yaml2obj -format=elf -docnum 1 %s > %t-2008.o
# RUN: yaml2obj -format=elf -docnum 2 %s > %t-legacy.o
# RUN: not lld -flavor gnu -target mipsel -shared -o %t.so \
# RUN: %t-2008.o %t-legacy.o 2>&1 | FileCheck %s
# CHECK: Linking -mnan=2008 and -mnan=legacy modules
# 2008.o
---
FileHeader:
Class: ELFCLASS32
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_MIPS
Flags: [EF_MIPS_ABI_O32, EF_MIPS_ARCH_32, EF_MIPS_NAN2008]
Sections:
- Name: .text
Type: SHT_PROGBITS
Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
AddressAlign: 0x04
Size: 0x04
# legacy.o
---
FileHeader:
Class: ELFCLASS32
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_MIPS
Flags: [EF_MIPS_ABI_O32, EF_MIPS_ARCH_32]
Sections:
- Name: .text
Type: SHT_PROGBITS
Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
AddressAlign: 0x04
Size: 0x04
...