llvm-project/lld/test/ELF/basic.s

# REQUIRES: x86

# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
# RUN: ld.lld %t -o %t2
# RUN: llvm-readobj -file-headers -sections -program-headers -symbols %t2 \
# RUN:   | FileCheck %s

# exits with return code 42 on linux
.globl _start;
_start:
  mov $60, %rax
  mov $42, %rdi
  syscall

# CHECK:      ElfHeader {
# CHECK-NEXT:   Ident {
# CHECK-NEXT:     Magic: (7F 45 4C 46)
# CHECK-NEXT:     Class: 64-bit (0x2)
# 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_X86_64 (0x3E)
# CHECK-NEXT:   Version: 1
# CHECK-NEXT:   Entry: [[ENTRY:0x[0-9A-F]+]]
# CHECK-NEXT:   ProgramHeaderOffset: 0x40
# CHECK-NEXT:   SectionHeaderOffset: 0x1070
# CHECK-NEXT:   Flags [ (0x0)
# CHECK-NEXT:   ]
# CHECK-NEXT:   HeaderSize: 64
# CHECK-NEXT:   ProgramHeaderEntrySize: 56
# CHECK-NEXT:   ProgramHeaderCount: 4
# CHECK-NEXT:   SectionHeaderEntrySize: 64
# CHECK-NEXT:   SectionHeaderCount: 5
# CHECK-NEXT:   StringTableSectionIndex: 3
# 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: 0x11000
# CHECK-NEXT:     Offset: 0x1000
# CHECK-NEXT:     Size: 16
# 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: .symtab
# CHECK-NEXT:     Type: SHT_SYMTAB (0x2)
# CHECK-NEXT:     Flags [ (0x0)
# CHECK-NEXT:     ]
# CHECK-NEXT:     Address: 0x0
# CHECK-NEXT:     Offset: 0x1010
# CHECK-NEXT:     Size: 48
# CHECK-NEXT:     Link: 4
# CHECK-NEXT:     Info: 1
# CHECK-NEXT:     AddressAlignment: 8
# CHECK-NEXT:     EntrySize: 24
# CHECK-NEXT:   }
# CHECK-NEXT:   Section {
# CHECK-NEXT:     Index: 3
# CHECK-NEXT:     Name: .shstrtab
# CHECK-NEXT:     Type: SHT_STRTAB (0x3)
# CHECK-NEXT:     Flags [ (0x0)
# CHECK-NEXT:     ]
# CHECK-NEXT:     Address: 0x0
# CHECK-NEXT:     Offset: 0x1040
# CHECK-NEXT:     Size: 33
# CHECK-NEXT:     Link: 0
# CHECK-NEXT:     Info: 0
# CHECK-NEXT:     AddressAlignment: 1
# CHECK-NEXT:     EntrySize: 0
# CHECK-NEXT:   }
# CHECK-NEXT:   Section {
# CHECK-NEXT:     Index: 4
# CHECK-NEXT:     Name: .strtab (25)
# CHECK-NEXT:     Type: SHT_STRTAB (0x3)
# CHECK-NEXT:     Flags [ (0x0)
# CHECK-NEXT:     ]
# CHECK-NEXT:     Address: 0x0
# CHECK-NEXT:     Offset: 0x1061
# 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: Symbols [
# CHECK-NEXT:   Symbol {
# CHECK-NEXT:     Name:  (0)
# CHECK-NEXT:     Value: 0x0
# CHECK-NEXT:     Size: 0
# CHECK-NEXT:     Binding: Local (0x0)
# CHECK-NEXT:     Type: None (0x0)
# CHECK-NEXT:     Other: 0
# CHECK-NEXT:     Section: Undefined (0x0)
# CHECK-NEXT:   }
# CHECK-NEXT:   Symbol {
# CHECK-NEXT:     Name: _start
# CHECK-NEXT:     Value: [[ENTRY]]
# CHECK-NEXT:     Size: 0
# CHECK-NEXT:     Binding: Global (0x1)
# CHECK-NEXT:     Type: None (0x0)
# CHECK-NEXT:     Other: 0
# CHECK-NEXT:     Section: .text
# CHECK-NEXT:   }
# CHECK-NEXT: ]
# CHECK-NEXT: ProgramHeaders [
# CHECK-NEXT:   ProgramHeader {
# CHECK-NEXT:     Type: PT_PHDR (0x6)
# CHECK-NEXT:     Offset: 0x40
# CHECK-NEXT:     VirtualAddress: 0x10040
# CHECK-NEXT:     PhysicalAddress: 0x10040
# CHECK-NEXT:     FileSize: 224
# CHECK-NEXT:     MemSize: 224
# CHECK-NEXT:     Flags [ (0x4)
# CHECK-NEXT:       PF_R (0x4)
# CHECK-NEXT:     ]
# CHECK-NEXT:     Alignment: 8
# CHECK-NEXT:   }
# CHECK-NEXT:   ProgramHeader {
# CHECK-NEXT:     Type: PT_LOAD (0x1)
# CHECK-NEXT:     Offset: 0x0
# CHECK-NEXT:     VirtualAddress: 0x10000
# CHECK-NEXT:     PhysicalAddress: 0x10000
# CHECK-NEXT:     FileSize: 288
# CHECK-NEXT:     MemSize: 288
# 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: 0x1000
# CHECK-NEXT:     VirtualAddress: 0x11000
# CHECK-NEXT:     PhysicalAddress: 0x11000
# CHECK-NEXT:     FileSize: 16
# CHECK-NEXT:     MemSize: 16
# 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: ]

# Test for the response file
# RUN: echo " -o %t2" > %t.responsefile
# RUN: ld.lld %t @%t.responsefile
# RUN: llvm-readobj -file-headers -sections -program-headers -symbols %t2 \
# RUN:   | FileCheck %s

# RUN: not ld.lld %t.foo -o %t2 2>&1 | \
# RUN:  FileCheck --check-prefix=MISSING %s
# MISSING: cannot open {{.*}}.foo: {{[Nn]}}o such file or directory

# RUN: not ld.lld -o %t2 2>&1 | \
# RUN:  FileCheck --check-prefix=NO_INPUT %s
# NO_INPUT: no input files.

# RUN: not ld.lld %t.no.such.file -o %t2 2>&1 | \
# RUN:  FileCheck --check-prefix=CANNOT_OPEN %s
# CANNOT_OPEN: cannot open {{.*}}.no.such.file: {{[Nn]}}o such file or directory

# RUN: not ld.lld %t -o 2>&1 | FileCheck --check-prefix=NO_O_VAL %s
# NO_O_VAL: missing arg value for "-o", expected 1 argument.

# RUN: not ld.lld --foo 2>&1 | FileCheck --check-prefix=UNKNOWN %s
# UNKNOWN: unknown argument: --foo

# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
# RUN: not ld.lld %t %t -o %t2 2>&1 | FileCheck --check-prefix=DUP %s
# DUP: duplicate symbol: _start in {{.*}} and {{.*}}

# RUN: not ld.lld %t -o %t -m wrong_emul 2>&1 | FileCheck --check-prefix=UNKNOWN_EMUL %s
# UNKNOWN_EMUL: unknown emulation: wrong_emul

# RUN: not ld.lld %t --lto-jobs=0 2>&1 | FileCheck --check-prefix=NOTHREADS %s
# NOTHREADS: number of threads must be > 0