llvm/test/MC/Mips/eh-frame.s

   1 // Test the bits of .eh_frame on mips that are already implemented correctly.
   2
   3 // RUN: llvm-mc -filetype=obj %s -o %t.o -triple mips-unknown-linux-gnu
   4 // RUN: llvm-readobj -r %t.o | FileCheck --check-prefixes=RELOCS,ABS32 %s
   5 // RUN: llvm-dwarfdump -eh-frame %t.o | FileCheck --check-prefixes=DWARF32,DWARF32_ABS %s
   6
   7 // RUN: llvm-mc -filetype=obj %s -o %t.o -triple mipsel-unknown-linux-gnu
   8 // RUN: llvm-readobj -r %t.o | FileCheck --check-prefixes=RELOCS,ABS32 %s
   9 // RUN: llvm-dwarfdump -eh-frame %t.o | FileCheck --check-prefixes=DWARF32,DWARF32_ABS %s
  10
  11 // RUN: llvm-mc -filetype=obj %s -o %t.o -triple mips64-unknown-linux-gnu
  12 // RUN: llvm-readobj -r %t.o | FileCheck --check-prefixes=RELOCS,ABS64 %s
  13 // RUN: llvm-dwarfdump -eh-frame %t.o | FileCheck --check-prefixes=DWARF64,DWARF64_ABS %s
  14
  15 // RUN: llvm-mc -filetype=obj %s -o %t.o -triple mips64el-unknown-linux-gnu
  16 // RUN: llvm-readobj -r %t.o | FileCheck --check-prefixes=RELOCS,ABS64 %s
  17 // RUN: llvm-dwarfdump -eh-frame %t.o | FileCheck --check-prefixes=DWARF64,DWARF64_ABS %s
  18
  19 /// Check that position-indenpendent code use PC-relative relocations:
  20 // RUN: llvm-mc -filetype=obj %s -o %t.o -triple mips-unknown-linux-gnu --position-independent
  21 // RUN: llvm-readobj -r %t.o | FileCheck --check-prefixes=RELOCS,PIC32 %s
  22 // RUN: llvm-dwarfdump -eh-frame %t.o | FileCheck --check-prefixes=DWARF32,DWARF32_PIC %s
  23
  24 // RUN: llvm-mc -filetype=obj %s -o %t.o -triple mipsel-unknown-linux-gnu --position-independent
  25 // RUN: llvm-readobj -r %t.o | FileCheck --check-prefixes=RELOCS,PIC32 %s
  26 // RUN: llvm-dwarfdump -eh-frame %t.o | FileCheck --check-prefixes=DWARF32,DWARF32_PIC %s
  27
  28 // RUN: llvm-mc -filetype=obj %s -o %t.o -triple mips64-unknown-linux-gnu --position-independent
  29 // RUN: llvm-readobj -r %t.o | FileCheck --check-prefixes=RELOCS,PIC64 %s
  30 // RUN: llvm-dwarfdump -eh-frame %t.o | FileCheck --check-prefixes=DWARF64,DWARF64_PIC %s
  31
  32 // RUN: llvm-mc -filetype=obj %s -o %t.o -triple mips64el-unknown-linux-gnu --position-independent
  33 // RUN: llvm-readobj -r %t.o | FileCheck --check-prefixes=RELOCS,PIC64 %s
  34 // RUN: llvm-dwarfdump -eh-frame %t.o | FileCheck --check-prefixes=DWARF64,DWARF64_PIC %s
  35
  36 /// However using the large code model forces R_MIPS_64 since there is no R_MIPS_PC64 relocation:
  37 // RUN: llvm-mc -filetype=obj %s -o %t.o -triple mips64-unknown-linux-gnu --position-independent --large-code-model
  38 // RUN: llvm-readobj -r %t.o | FileCheck --check-prefixes=RELOCS,ABS64 %s
  39 // RUN: llvm-dwarfdump -eh-frame %t.o | FileCheck --check-prefixes=DWARF64,DWARF64_ABS %s
  40
  41 // RUN: llvm-mc -filetype=obj %s -o %t.o -triple mips64el-unknown-linux-gnu --position-independent  --large-code-model
  42 // RUN: llvm-readobj -r %t.o | FileCheck --check-prefixes=RELOCS,ABS64 %s
  43 // RUN: llvm-dwarfdump -eh-frame %t.o | FileCheck --check-prefixes=DWARF64,DWARF64_ABS %s
  44
  45 func:
  46         .cfi_startproc
  47         .cfi_endproc
  48
  49 // RELOCS:      Relocations [
  50 // RELOCS:        Section ({{.+}}) .rel{{a?}}.eh_frame {
  51 // ABS32-NEXT:      R_MIPS_32
  52 // ABS64-NEXT:      R_MIPS_64/R_MIPS_NONE/R_MIPS_NONE
  53 // PIC32-NEXT:      R_MIPS_PC32
  54 // PIC64-NEXT:      R_MIPS_PC32/R_MIPS_NONE/R_MIPS_NONE
  55 // RELOCS-NEXT:   }
  56
  57 // DWARF32: 00000000 00000010 00000000 CIE
  58 // DWARF32-NEXT:     Format:                DWARF32
  59 // DWARF32-NEXT:     Version:               1
  60 // DWARF32-NEXT:     Augmentation:          "zR"
  61 // DWARF32-NEXT:     Code alignment factor: 1
  62 // DWARF32-NEXT:     Data alignment factor: -4
  63 // DWARF32-NEXT:     Return address column: 31
  64 // DWARF32_ABS-NEXT: Augmentation data: 0B
  65 //                                      ^^ fde pointer encoding: DW_EH_PE_sdata4
  66 // DWARF32_PIC-NEXT: Augmentation data: 1B
  67 //                                      ^^ fde pointer encoding: DW_EH_PE_pcrel | DW_EH_PE_sdata4
  68 // DWARF32-EMPTY:
  69 // DWARF32-NEXT:     DW_CFA_def_cfa_register: SP_64
  70 //
  71 // DWARF32_ABS: 00000014 00000010 00000018 FDE cie=00000000 pc=00000000...00000000
  72 // DWARF32_PIC: 00000014 00000010 00000018 FDE cie=00000000 pc=0000001c...0000001c
  73 // DWARF32-NEXT:     Format:       DWARF32
  74 // DWARF32-NEXT:     DW_CFA_nop:
  75 // DWARF32-NEXT:     DW_CFA_nop:
  76 // DWARF32-NEXT:     DW_CFA_nop:
  77
  78
  79 // DWARF64: 00000000 00000010 00000000 CIE
  80 // DWARF64-NEXT:     Format:                DWARF32
  81 // DWARF64-NEXT:     Version:               1
  82 // DWARF64-NEXT:     Augmentation:          "zR"
  83 // DWARF64-NEXT:     Code alignment factor: 1
  84 // DWARF64-NEXT:     Data alignment factor: -8
  85 //                                          ^^ GAS uses -4. Should be ok as long as
  86 //                                             all offsets we need are a multiple of 8.
  87 // DWARF64-NEXT:     Return address column: 31
  88 // DWARF64_ABS-NEXT: Augmentation data: 0C
  89 //                                      ^^ fde pointer encoding: DW_EH_PE_sdata8
  90 // DWARF64_PIC:      Augmentation data: 1B
  91 //                                      ^^ fde pointer encoding: DW_EH_PE_pcrel | DW_EH_PE_sdata4
  92 // DWARF64-EMPTY:
  93 // DWARF64-NEXT:     DW_CFA_def_cfa_register: SP_64
  94 // DWARF64_PIC-NEXT: DW_CFA_nop:
  95 //
  96 // DWARF64_ABS:      00000014 00000018 00000018 FDE cie=00000000 pc=00000000...00000000
  97 // DWARF64_PIC:      00000014 00000010 00000018 FDE cie=00000000 pc=00000000...00000000
  98 // DWARF64-NEXT:     Format:       DWARF32
  99 // DWARF64-NEXT:     DW_CFA_nop:
 100 // DWARF64-NEXT:     DW_CFA_nop:
 101 // DWARF64-NEXT:     DW_CFA_nop: