lld/test/ELF/linkerscript/memory.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
   3
   4 ## Check simple RAM-only memory region.
   5
   6 # RUN: echo "MEMORY { ram (rwx) : ORIGIN = 0x8000, LENGTH = 256K } \
   7 # RUN: SECTIONS { \
   8 # RUN:   .text : { *(.text) } > ram \
   9 # RUN:   .data : { *(.data) } > ram \
  10 # RUN: }" > %t.script
  11 # RUN: ld.lld -o %t1 --script %t.script %t
  12 # RUN: llvm-readelf -S %t1 | FileCheck --check-prefix=RAM %s
  13
  14 # RAM:      [ 1] .text PROGBITS 0000000000008000 001000 000001
  15 # RAM-NEXT: [ 2] .data PROGBITS 0000000000008001 001001 001000
  16
  17 ## Check RAM and ROM memory regions.
  18
  19 # RUN: echo "MEMORY { \
  20 # RUN:   ram (rwx) : ORIGIN = 0, LENGTH = 1024M \
  21 # RUN:   rom (rx) : org = (0x80 * 0x1000 * 0x1000), len = 64M \
  22 # RUN: } \
  23 # RUN: SECTIONS { \
  24 # RUN:   .text : { *(.text) } >rom \
  25 # RUN:   .data : { *(.data) } >ram \
  26 # RUN: }" > %t.script
  27 # RUN: ld.lld -o %t1 --script %t.script %t
  28 # RUN: llvm-readelf -S %t1 | FileCheck --check-prefix=RAMROM %s
  29
  30 # RAMROM:      [ 1] .text PROGBITS 0000000080000000 001000 000001
  31 # RAMROM-NEXT: [ 2] .data PROGBITS 0000000000000000 002000 001000
  32
  33 ## Check memory region placement by attributes.
  34
  35 # RUN: echo "MEMORY { \
  36 # RUN:   ram (!rx) : ORIGIN = 0, LENGTH = 1024M \
  37 # RUN:   rom (rx) : o = 0x80000000, l = 64M \
  38 # RUN: } \
  39 # RUN: SECTIONS { \
  40 # RUN:   .text : { *(.text) } \
  41 # RUN:   .data : { *(.data) } > ram \
  42 # RUN: }" > %t.script
  43 # RUN: ld.lld -o %t1 --script %t.script %t
  44 # RUN: llvm-readelf -S %t1 | FileCheck --check-prefix=ATTRS %s
  45
  46 # ATTRS:      [ 1] .text PROGBITS 0000000080000000 001000 000001
  47 # ATTRS-NEXT: [ 2] .data PROGBITS 0000000000000000 002000 001000
  48
  49 ## ORIGIN/LENGTH support expressions with symbol assignments.
  50 # RUN: echo 'MEMORY { ram : ORIGIN = symbol, LENGTH = 4097 } \
  51 # RUN: SECTIONS { \
  52 # RUN:   .text : { *(.text) } > ram \
  53 # RUN:   .data : { *(.data) } > ram \
  54 # RUN: }' > %t.script
  55 # RUN: ld.lld -T %t.script %t --defsym symbol=0x5000 -o %t.relro
  56 # RUN: llvm-readelf -S %t.relro | FileCheck --check-prefix=RELRO %s
  57 # RUN: echo 'symbol = 0x5000;' > %t1.script
  58 # RUN: ld.lld -T %t.script -T %t1.script %t -o %t.relro2
  59 # RUN: llvm-readelf -S %t.relro2 | FileCheck --check-prefix=RELRO %s
  60
  61 # RELRO:      [ 1] .text PROGBITS 0000000000005000 001000 000001
  62 # RELRO-NEXT: [ 2] .data PROGBITS 0000000000005001 001001 001000
  63
  64 # RUN: echo 'MEMORY { ram : ORIGIN = CONSTANT(COMMONPAGESIZE), LENGTH = CONSTANT(COMMONPAGESIZE)+1 } \
  65 # RUN: SECTIONS { \
  66 # RUN:   .text : { *(.text) } > ram \
  67 # RUN:   .data : { *(.data) } > ram \
  68 # RUN: }' > %t.script
  69 # RUN: ld.lld -T %t.script %t -o %t.pagesize
  70 # RUN: llvm-readelf -S %t.pagesize | FileCheck --check-prefix=PAGESIZE %s
  71
  72 # PAGESIZE:      [ 1] .text PROGBITS 0000000000001000 001000 000001
  73 # PAGESIZE-NEXT: [ 2] .data PROGBITS 0000000000001001 001001 001000
  74
  75 .text
  76 .global _start
  77 _start:
  78   nop
  79
  80 .data
  81 b:
  82   .long 1
  83   .zero 4092