llvm-project/lld/test/ELF/edata-etext.s

118 lines
3.3 KiB
ArmAsm

# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
# RUN: ld.lld %t.o -o %t
# RUN: llvm-readobj -sections -symbols %t | FileCheck %s
## This checks that:
## 1) Address of _etext is the first location after the last read-only loadable segment.
## 2) Address of _edata points to the end of the last non SHT_NOBITS section.
## That is how gold/bfd do. At the same time specs says: "If the address of _edata is
## greater than the address of _etext, the address of _end is same as the address
## of _edata." (https://docs.oracle.com/cd/E53394_01/html/E54766/u-etext-3c.html).
## 3) Address of _end is different from _edata because of 2.
# CHECK: Section {
# CHECK: Index: 1
# CHECK: Name: .text
# CHECK-NEXT: Type: SHT_PROGBITS
# CHECK-NEXT: Flags [
# CHECK-NEXT: SHF_ALLOC
# CHECK-NEXT: SHF_EXECINSTR
# CHECK-NEXT: ]
# CHECK-NEXT: Address: 0x11000
# CHECK-NEXT: Offset: 0x1000
# CHECK-NEXT: Size: 1
# CHECK-NEXT: Link:
# CHECK-NEXT: Info:
# CHECK-NEXT: AddressAlignment:
# CHECK-NEXT: EntrySize: 0
# CHECK-NEXT: }
# CHECK-NEXT: Section {
# CHECK-NEXT: Index: 2
# CHECK-NEXT: Name: .data
# CHECK-NEXT: Type: SHT_PROGBITS
# CHECK-NEXT: Flags [
# CHECK-NEXT: SHF_ALLOC
# CHECK-NEXT: SHF_WRITE
# CHECK-NEXT: ]
# CHECK-NEXT: Address: 0x12000
# CHECK-NEXT: Offset: 0x2000
# CHECK-NEXT: Size: 2
# CHECK-NEXT: Link:
# CHECK-NEXT: Info:
# CHECK-NEXT: AddressAlignment:
# CHECK-NEXT: EntrySize:
# CHECK-NEXT: }
# CHECK-NEXT: Section {
# CHECK-NEXT: Index: 3
# CHECK-NEXT: Name: .bss
# CHECK-NEXT: Type: SHT_NOBITS
# CHECK-NEXT: Flags [
# CHECK-NEXT: SHF_ALLOC
# CHECK-NEXT: SHF_WRITE
# CHECK-NEXT: ]
# CHECK-NEXT: Address: 0x12004
# CHECK-NEXT: Offset: 0x2002
# CHECK-NEXT: Size: 6
# CHECK-NEXT: Link:
# CHECK-NEXT: Info:
# CHECK-NEXT: AddressAlignment:
# CHECK-NEXT: EntrySize:
# CHECK-NEXT: }
# CHECK: Symbols [
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name:
# CHECK-NEXT: Value: 0x0
# CHECK-NEXT: Size: 0
# CHECK-NEXT: Binding: Local
# CHECK-NEXT: Type: None
# CHECK-NEXT: Other: 0
# CHECK-NEXT: Section: Undefined
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: _start
# CHECK-NEXT: Value: 0x11000
# CHECK-NEXT: Size: 0
# CHECK-NEXT: Binding: Global
# CHECK-NEXT: Type: None
# CHECK-NEXT: Other: 0
# CHECK-NEXT: Section: .text
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: _edata
# CHECK-NEXT: Value: 0x12002
# CHECK-NEXT: Size: 0
# CHECK-NEXT: Binding: Global
# CHECK-NEXT: Type: None
# CHECK-NEXT: Other: 0
# CHECK-NEXT: Section: Absolute
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: _end
# CHECK-NEXT: Value: 0x1200A
# CHECK-NEXT: Size: 0
# CHECK-NEXT: Binding: Global
# CHECK-NEXT: Type: None
# CHECK-NEXT: Other: 0
# CHECK-NEXT: Section: Absolute
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: _etext
# CHECK-NEXT: Value: 0x11001
# CHECK-NEXT: Size: 0
# CHECK-NEXT: Binding: Global
# CHECK-NEXT: Type: None
# CHECK-NEXT: Other: 0
# CHECK-NEXT: Section: Absolute
# CHECK-NEXT: }
# CHECK-NEXT: ]
.global _start,_end,_etext,_edata
.text
_start:
nop
.data
.word 1
.bss
.align 4
.space 6