basic-i386.s 5.24 KB
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux %s -o %t.o
# RUN: ld.lld %t.o -o %t
# RUN: llvm-readobj --file-headers --sections -l %t | FileCheck %s

# exits with return code 42 on linux
.globl _start
_start:
  mov $1, %eax
  mov $42, %ebx
  int $0x80

# CHECK:      ElfHeader {
# CHECK-NEXT:   Ident {
# CHECK-NEXT:     Magic: (7F 45 4C 46)
# CHECK-NEXT:     Class: 32-bit (0x1)
# CHECK-NEXT:     DataEncoding: LittleEndian (0x1)
# CHECK-NEXT:     FileVersion: 1
# CHECK-NEXT:     OS/ABI: SystemV (0x0)
# CHECK-NEXT:     ABIVersion: 0
# CHECK-NEXT:     Unused: (00 00 00 00 00 00 00)
# CHECK-NEXT:   }
# CHECK-NEXT:   Type: Executable (0x2)
# CHECK-NEXT:   Machine: EM_386 (0x3)
# CHECK-NEXT:   Version: 1
# CHECK-NEXT:   Entry: 0x4010B4
# CHECK-NEXT:   ProgramHeaderOffset: 0x34
# CHECK-NEXT:   SectionHeaderOffset: 0x11C
# CHECK-NEXT:   Flags [ (0x0)
# CHECK-NEXT:   ]
# CHECK-NEXT:   HeaderSize: 52
# CHECK-NEXT:   ProgramHeaderEntrySize: 32
# CHECK-NEXT:   ProgramHeaderCount: 4
# CHECK-NEXT:   SectionHeaderEntrySize: 40
# CHECK-NEXT:   SectionHeaderCount: 6
# CHECK-NEXT:   StringTableSectionIndex: 4
# CHECK-NEXT: }
# CHECK-NEXT: Sections [
# CHECK-NEXT:   Section {
# CHECK-NEXT:     Index: 0
# CHECK-NEXT:     Name:  (0)
# CHECK-NEXT:     Type: SHT_NULL (0x0)
# CHECK-NEXT:     Flags [ (0x0)
# CHECK-NEXT:     ]
# CHECK-NEXT:     Address: 0x0
# CHECK-NEXT:     Offset: 0x0
# CHECK-NEXT:     Size: 0
# CHECK-NEXT:     Link: 0
# CHECK-NEXT:     Info: 0
# CHECK-NEXT:     AddressAlignment: 0
# CHECK-NEXT:     EntrySize: 0
# CHECK-NEXT:   }
# CHECK-NEXT:   Section {
# CHECK-NEXT:     Index: 1
# CHECK-NEXT:     Name: .text
# CHECK-NEXT:     Type: SHT_PROGBITS (0x1)
# CHECK-NEXT:     Flags [ (0x6)
# CHECK-NEXT:       SHF_ALLOC (0x2)
# CHECK-NEXT:       SHF_EXECINSTR (0x4)
# CHECK-NEXT:     ]
# CHECK-NEXT:     Address: 0x4010B4
# CHECK-NEXT:     Offset: 0xB4
# CHECK-NEXT:     Size: 12
# CHECK-NEXT:     Link: 0
# CHECK-NEXT:     Info: 0
# CHECK-NEXT:     AddressAlignment: 4
# CHECK-NEXT:     EntrySize: 0
# CHECK-NEXT:   }
# CHECK-NEXT:   Section {
# CHECK-NEXT:     Index: 2
# CHECK-NEXT:     Name: .comment
# CHECK-NEXT:     Type: SHT_PROGBITS (0x1)
# CHECK-NEXT:     Flags [ (0x30)
# CHECK-NEXT:       SHF_MERGE (0x10)
# CHECK-NEXT:       SHF_STRINGS (0x20)
# CHECK-NEXT:     ]
# CHECK-NEXT:     Address: 0x0
# CHECK-NEXT:     Offset: 0xC0
# CHECK-NEXT:     Size: 8
# CHECK-NEXT:     Link: 0
# CHECK-NEXT:     Info: 0
# CHECK-NEXT:     AddressAlignment: 1
# CHECK-NEXT:     EntrySize: 1
# CHECK-NEXT:   }
# CHECK-NEXT:   Section {
# CHECK-NEXT:     Index: 3
# CHECK-NEXT:     Name: .symtab
# CHECK-NEXT:     Type: SHT_SYMTAB
# CHECK-NEXT:     Flags [
# CHECK-NEXT:     ]
# CHECK-NEXT:     Address: 0x0
# CHECK-NEXT:     Offset: 0xC8
# CHECK-NEXT:     Size: 32
# CHECK-NEXT:     Link: 5
# CHECK-NEXT:     Info: 1
# CHECK-NEXT:     AddressAlignment: 4
# CHECK-NEXT:     EntrySize: 16
# CHECK-NEXT:   }
# CHECK-NEXT:   Section {
# CHECK-NEXT:     Index: 4
# CHECK-NEXT:     Name: .shstrtab
# CHECK-NEXT:     Type: SHT_STRTAB (0x3)
# CHECK-NEXT:     Flags [ (0x0)
# CHECK-NEXT:     ]
# CHECK-NEXT:     Address: 0x0
# CHECK-NEXT:     Offset: 0xE8
# CHECK-NEXT:     Size: 42
# CHECK-NEXT:     Link: 0
# CHECK-NEXT:     Info: 0
# CHECK-NEXT:     AddressAlignment: 1
# CHECK-NEXT:     EntrySize: 0
# CHECK-NEXT:   }
# CHECK-NEXT:   Section {
# CHECK-NEXT:     Index: 5
# CHECK-NEXT:     Name: .strtab
# CHECK-NEXT:     Type: SHT_STRTAB (0x3)
# CHECK-NEXT:     Flags [ (0x0)
# CHECK-NEXT:     ]
# CHECK-NEXT:     Address: 0x0
# CHECK-NEXT:     Offset: 0x112
# CHECK-NEXT:     Size: 8
# CHECK-NEXT:     Link: 0
# CHECK-NEXT:     Info: 0
# CHECK-NEXT:     AddressAlignment: 1
# CHECK-NEXT:     EntrySize: 0
# CHECK-NEXT:   }
# CHECK-NEXT: ]
# CHECK-NEXT: ProgramHeaders [
# CHECK-NEXT:   ProgramHeader {
# CHECK-NEXT:     Type: PT_PHDR (0x6)
# CHECK-NEXT:     Offset: 0x34
# CHECK-NEXT:     VirtualAddress: 0x400034
# CHECK-NEXT:     PhysicalAddress: 0x400034
# CHECK-NEXT:     FileSize: 128
# CHECK-NEXT:     MemSize: 128
# CHECK-NEXT:     Flags [ (0x4)
# CHECK-NEXT:       PF_R (0x4)
# CHECK-NEXT:     ]
# CHECK-NEXT:     Alignment: 4
# CHECK-NEXT:   }
# CHECK-NEXT:   ProgramHeader {
# CHECK-NEXT:     Type: PT_LOAD (0x1)
# CHECK-NEXT:     Offset: 0x0
# CHECK-NEXT:     VirtualAddress: 0x400000
# CHECK-NEXT:     PhysicalAddress: 0x400000
# CHECK-NEXT:     FileSize: 180
# CHECK-NEXT:     MemSize: 180
# CHECK-NEXT:     Flags [
# CHECK-NEXT:       PF_R
# CHECK-NEXT:     ]
# CHECK-NEXT:     Alignment: 4096
# CHECK-NEXT:   }
# CHECK-NEXT:   ProgramHeader {
# CHECK-NEXT:     Type: PT_LOAD (0x1)
# CHECK-NEXT:     Offset: 0xB4
# CHECK-NEXT:     VirtualAddress: 0x4010B4
# CHECK-NEXT:     PhysicalAddress: 0x4010B4
# CHECK-NEXT:     FileSize: 12
# CHECK-NEXT:     MemSize: 12
# CHECK-NEXT:     Flags [ (0x5)
# CHECK-NEXT:       PF_R (0x4)
# CHECK-NEXT:       PF_X (0x1)
# CHECK-NEXT:     ]
# CHECK-NEXT:     Alignment: 4096
# CHECK-NEXT:   }
# CHECK-NEXT:   ProgramHeader {
# CHECK-NEXT:     Type: PT_GNU_STACK
# CHECK-NEXT:     Offset: 0x0
# CHECK-NEXT:     VirtualAddress: 0x0
# CHECK-NEXT:     PhysicalAddress: 0x0
# CHECK-NEXT:     FileSize: 0
# CHECK-NEXT:     MemSize: 0
# CHECK-NEXT:     Flags [
# CHECK-NEXT:       PF_R
# CHECK-NEXT:       PF_W
# CHECK-NEXT:     ]
# CHECK-NEXT:     Alignment: 0
# CHECK-NEXT:   }
# CHECK-NEXT: ]