# 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-objdump -t -section-headers %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. ## 4) Addresses of _edata == edata, _end == end and _etext == etext. # CHECK: Sections: # CHECK-NEXT: Idx Name Size Address Type # CHECK-NEXT: 0 00000000 0000000000000000 # CHECK-NEXT: 1 .text 00000001 0000000000201000 TEXT # CHECK-NEXT: 2 .data 00000002 0000000000202000 DATA # CHECK-NEXT: 3 .bss 00000006 0000000000202004 BSS # CHECK: SYMBOL TABLE: # CHECK-NEXT: 0000000000000000 *UND* 00000000 # CHECK-NEXT: 0000000000202002 .data 00000000 _edata # CHECK-NEXT: 000000000020200a .bss 00000000 _end # CHECK-NEXT: 0000000000201001 .text 00000000 _etext # CHECK-NEXT: 0000000000201000 .text 00000000 _start # CHECK-NEXT: 0000000000202002 .data 00000000 edata # CHECK-NEXT: 000000000020200a .bss 00000000 end # CHECK-NEXT: 0000000000201001 .text 00000000 etext # RUN: ld.lld -r %t.o -o %t2 # RUN: llvm-objdump -t %t2 | FileCheck %s --check-prefix=RELOCATABLE # RELOCATABLE: 0000000000000000 *UND* 00000000 _edata # RELOCATABLE-NEXT: 0000000000000000 *UND* 00000000 _end # RELOCATABLE-NEXT: 0000000000000000 *UND* 00000000 _etext .global _start,_end,_etext,_edata,end,etext,edata .text _start: nop .data .word 1 .bss .align 4 .space 6