1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-10-29 23:12:55 +01:00
llvm-mirror/test/MC/COFF/symbol-fragment-offset-64.s
Saleem Abdulrasool 542dba4868 MC: prevent early DCE of empty sections
Prevent the early elimination of sections in the object writer.  There may be
references to the section itself by other symbols, which may potentially not be
possible to resolve.  ML (Visual Studio's Macro Assembler) also seems to retain
empty sections.

The elimination of symbols and sections which are unused should really occur at
the link phase.  This will not cause any change in the resulting binary, simply
in the generated object files.

The adjustments to the other unit tests account for the fluctuating section
index caused by the appearance of sections which were previously discarded.

llvm-svn: 210373
2014-06-06 21:40:16 +00:00

169 lines
5.7 KiB
ArmAsm

// The purpose of this test is to see if the COFF object writer is emitting the
// proper relocations for multiple pieces of data in a single data fragment.
// RUN: llvm-mc -filetype=obj -triple x86_64-pc-win32 %s | llvm-readobj -h -s -sr -sd -t | FileCheck %s
.def _main;
.scl 2;
.type 32;
.endef
.text
.globl _main
.align 16, 0x90
_main: # @main
# BB#0: # %entry
subl $4, %esp
movl $.L_.str0, (%esp)
callq _printf
movl $.L_.str1, (%esp)
callq _puts
movl $.L_.str2, (%esp)
callq _puts
xorl %eax, %eax
addl $4, %esp
ret
.data
.L_.str0: # @.str0
.asciz "Hello "
.L_.str1: # @.str1
.asciz "World!"
.align 16 # @.str2
.L_.str2:
.asciz "I'm The Last Line."
// CHECK: {
// CHECK: Machine: IMAGE_FILE_MACHINE_AMD64
// CHECK: SectionCount: 3
// CHECK: TimeDateStamp: {{[0-9]+}}
// CHECK: PointerToSymbolTable: 0x{{[0-9A-F]+}}
// CHECK: SymbolCount: 9
// CHECK: OptionalHeaderSize: 0
// CHECK: Characteristics [ (0x0)
// CHECK: ]
// CHECK: }
// CHECK: Sections [
// CHECK: Section {
// CHECK: Number: 1
// CHECK: Name: .text
// CHECK: VirtualSize: 0
// CHECK: VirtualAddress: 0
// CHECK: RawDataSize: {{[0-9]+}}
// CHECK: PointerToRawData: 0x{{[0-9A-F]+}}
// CHECK: PointerToRelocations: 0x{{[0-9A-F]+}}
// CHECK: PointerToLineNumbers: 0x0
// CHECK: RelocationCount: 6
// CHECK: LineNumberCount: 0
// CHECK: Characteristics [ (0x60500020)
// CHECK: IMAGE_SCN_ALIGN_16BYTES
// CHECK: IMAGE_SCN_CNT_CODE
// CHECK: IMAGE_SCN_MEM_EXECUTE
// CHECK: IMAGE_SCN_MEM_READ
// CHECK: ]
// CHECK: Relocations [
// CHECK: 0x7 IMAGE_REL_AMD64_ADDR32 .data
// CHECK: 0xC IMAGE_REL_AMD64_REL32 _printf
// CHECK: 0x14 IMAGE_REL_AMD64_ADDR32 .data
// CHECK: 0x19 IMAGE_REL_AMD64_REL32 _puts
// CHECK: 0x21 IMAGE_REL_AMD64_ADDR32 .data
// CHECK: 0x26 IMAGE_REL_AMD64_REL32 _puts
// CHECK: ]
// CHECK: SectionData (
// CHECK: 0000: 83EC0467 C7042400 000000E8 00000000
// CHECK: 0010: 67C70424 07000000 E8000000 0067C704
// CHECK: 0020: 24100000 00E80000 000031C0 83C404C3
// CHECK: )
// CHECK: }
// CHECK: Section {
// CHECK: Number: 2
// CHECK: Name: .data
// CHECK: VirtualSize: 0
// CHECK: VirtualAddress: 0
// CHECK: RawDataSize: {{[0-9]+}}
// CHECK: PointerToRawData: 0x{{[0-9A-F]+}}
// CHECK: PointerToRelocations: 0x0
// CHECK: PointerToLineNumbers: 0x0
// CHECK: RelocationCount: 0
// CHECK: LineNumberCount: 0
// CHECK: Characteristics [ (0xC0500040)
// CHECK: IMAGE_SCN_ALIGN_16BYTES
// CHECK: IMAGE_SCN_CNT_INITIALIZED_DATA
// CHECK: IMAGE_SCN_MEM_READ
// CHECK: IMAGE_SCN_MEM_WRITE
// CHECK: Relocations [
// CHECK: ]
// CHECK: SectionData (
// CHECK: 0000: 48656C6C 6F200057 6F726C64 21000000 |Hello .World!...|
// CHECK: 0010: 49276D20 54686520 4C617374 204C696E |I'm The Last Lin|
// CHECK: 0020: 652E00 |e..|
// CHECK: )
// CHECK: }
// CHECK: ]
// CHECK: Symbols [
// CHECK: Symbol {
// CHECK: Name: .text
// CHECK: Value: 0
// CHECK: Section: .text
// CHECK: BaseType: Null
// CHECK: ComplexType: Null
// CHECK: StorageClass: Static
// CHECK: AuxSymbolCount: 1
// CHECK: AuxSectionDef {
// CHECK: Length: 48
// CHECK: RelocationCount: 6
// CHECK: LineNumberCount: 0
// CHECK: Checksum: 0x0
// CHECK: Number: 1
// CHECK: Selection: 0x0
// CHECK: Unused: (00 00 00)
// CHECK: }
// CHECK: }
// CHECK: Symbol {
// CHECK: Name: .data
// CHECK: Value: 0
// CHECK: Section: .data
// CHECK: BaseType: Null
// CHECK: ComplexType: Null
// CHECK: StorageClass: Static
// CHECK: AuxSymbolCount: 1
// CHECK: AuxSectionDef {
// CHECK: Length: 35
// CHECK: RelocationCount: 0
// CHECK: LineNumberCount: 0
// CHECK: Checksum: 0x0
// CHECK: Number: 2
// CHECK: Selection: 0x0
// CHECK: Unused: (00 00 00)
// CHECK: }
// CHECK: }
// CHECK: Symbol {
// CHECK: Name: _main
// CHECK: Value: 0
// CHECK: Section: .text
// CHECK: BaseType: Null
// CHECK: ComplexType: Function
// CHECK: StorageClass: External
// CHECK: AuxSymbolCount: 0
// CHECK: }
// CHECK: Symbol {
// CHECK: Name: _printf
// CHECK: Value: 0
// CHECK: Section: (0)
// CHECK: BaseType: Null
// CHECK: ComplexType: Null
// CHECK: StorageClass: External
// CHECK: AuxSymbolCount: 0
// CHECK: }
// CHECK: Symbol {
// CHECK: Name: _puts
// CHECK: Value: 0
// CHECK: Section: (0)
// CHECK: BaseType: Null
// CHECK: ComplexType: Null
// CHECK: StorageClass: External
// CHECK: AuxSymbolCount: 0
// CHECK: }
// CHECK: ]