ld/testsuite/ld-arm/group-relocs.s

   1 @ Tests for group relocations.
   2 @
   3 @ Beware when editing this file: it is carefully crafted so that
   4 @ specific PC- and SB-relative offsets arise.
   5 @
   6 @ Note that the gas tests have already checked that group relocations are
   7 @ handled in the same way for local and external symbols.
   8
   9 @ We will place .text at 0x8000.
  10
  11         .text
  12         .globl _start
  13
  14 _start:
  15         @ ALU, PC-relative
  16
  17         @ Instructions start at .text + 0x0
  18         add     r0, r15, #:pc_g0:(one_group_needed_alu_pc)
  19
  20         @ Instructions start at .text + 0x4
  21         add     r0, r15, #:pc_g0_nc:(two_groups_needed_alu_pc)
  22         add     r0, r0, #:pc_g1:(two_groups_needed_alu_pc + 4)
  23
  24         @ Instructions start at .text + 0xc
  25         add     r0, r15, #:pc_g0_nc:(three_groups_needed_alu_pc)
  26         add     r0, r0, #:pc_g1_nc:(three_groups_needed_alu_pc + 4)
  27         add     r0, r0, #:pc_g2:(three_groups_needed_alu_pc + 8)
  28
  29         @ ALU, SB-relative
  30
  31         @ Instructions start at .text + 0x18
  32         add     r0, r0, #:sb_g0:(one_group_needed_alu_sb)
  33
  34         @ Instructions start at .text + 0x1c
  35         add     r0, r0, #:sb_g0_nc:(two_groups_needed_alu_sb)
  36         add     r0, r0, #:sb_g1:(two_groups_needed_alu_sb)
  37
  38         @ Instructions start at .text + 0x24
  39         add     r0, r0, #:sb_g0_nc:(three_groups_needed_alu_sb)
  40         add     r0, r0, #:sb_g1_nc:(three_groups_needed_alu_sb)
  41         add     r0, r0, #:sb_g2:(three_groups_needed_alu_sb)
  42
  43         @ LDR, PC-relative
  44
  45         @ Instructions start at .text + 0x30
  46         add     r0, pc, #:pc_g0_nc:(two_groups_needed_ldr_pc)
  47         ldr     r1, [r0, #:pc_g1:(two_groups_needed_ldr_pc + 4)]
  48
  49         @ Instructions start at .text + 0x38
  50         add     r0, pc, #:pc_g0_nc:(three_groups_needed_ldr_pc)
  51         add     r0, r0, #:pc_g1_nc:(three_groups_needed_ldr_pc + 4)
  52         ldr     r1, [r0, #:pc_g2:(three_groups_needed_ldr_pc + 8)]
  53
  54         @ LDR, SB-relative
  55
  56         @ Instructions start at .text + 0x44
  57         ldr     r1, [r0, #:sb_g0:(one_group_needed_ldr_sb)]
  58
  59         @ Instructions start at .text + 0x48
  60         add     r0, r0, #:sb_g0_nc:(two_groups_needed_ldr_sb)
  61         ldr     r1, [r0, #:sb_g1:(two_groups_needed_ldr_sb)]
  62
  63         @ Instructions start at .text + 0x50
  64         add     r0, r0, #:sb_g0_nc:(three_groups_needed_ldr_sb)
  65         add     r0, r0, #:sb_g1_nc:(three_groups_needed_ldr_sb)
  66         ldr     r1, [r0, #:sb_g2:(three_groups_needed_ldr_sb)]
  67
  68         @ LDRS, PC-relative
  69
  70         @ Instructions start at .text + 0x5c
  71         ldrd    r2, [pc, #:pc_g0:(one_group_needed_ldrs_pc)]
  72
  73         @ Instructions start at .text + 0x60
  74         add     r0, pc, #:pc_g0_nc:(two_groups_needed_ldrs_pc)
  75         ldrd    r2, [r0, #:pc_g1:(two_groups_needed_ldrs_pc + 4)]
  76
  77         @ Instructions start at .text + 0x68
  78         add     r0, pc, #:pc_g0_nc:(three_groups_needed_ldrs_pc)
  79         add     r0, r0, #:pc_g1_nc:(three_groups_needed_ldrs_pc + 4)
  80         ldrd    r2, [r0, #:pc_g2:(three_groups_needed_ldrs_pc + 8)]
  81
  82         @ LDRS, SB-relative
  83
  84         @ Instructions start at .text + 0x74
  85         ldrd    r2, [r0, #:sb_g0:(one_group_needed_ldrs_sb)]
  86
  87         @ Instructions start at .text + 0x78
  88         add     r0, r0, #:sb_g0_nc:(two_groups_needed_ldrs_sb)
  89         ldrd    r2, [r0, #:sb_g1:(two_groups_needed_ldrs_sb)]
  90
  91         @ Instructions start at .text + 0x80
  92         add     r0, r0, #:sb_g0_nc:(three_groups_needed_ldrs_sb)
  93         add     r0, r0, #:sb_g1_nc:(three_groups_needed_ldrs_sb)
  94         ldrd    r2, [r0, #:sb_g2:(three_groups_needed_ldrs_sb)]
  95
  96         @ LDC, PC-relative
  97
  98         @ Instructions start at .text + 0x8c
  99         ldc     0, c0, [pc, #:pc_g0:(one_group_needed_ldc_pc)]
 100
 101         @ Instructions start at .text + 0x90
 102         add     r0, pc, #:pc_g0_nc:(two_groups_needed_ldc_pc)
 103         ldc     0, c0, [r0, #:pc_g1:(two_groups_needed_ldc_pc + 4)]
 104
 105         @ Instructions start at .text + 0x98
 106         add     r0, pc, #:pc_g0_nc:(three_groups_needed_ldc_pc)
 107         add     r0, r0, #:pc_g1_nc:(three_groups_needed_ldc_pc + 4)
 108         ldc     0, c0, [r0, #:pc_g2:(three_groups_needed_ldc_pc + 8)]
 109
 110         @ LDC, SB-relative
 111
 112         @ Instructions start at .text + 0xa4
 113         ldc     0, c0, [r0, #:sb_g0:(one_group_needed_ldc_sb)]
 114
 115         @ Instructions start at .text + 0xa8
 116         add     r0, r0, #:sb_g0_nc:(two_groups_needed_ldc_sb)
 117         ldc     0, c0, [r0, #:sb_g1:(two_groups_needed_ldc_sb)]
 118
 119         @ Instructions start at .text + 0xb0
 120         add     r0, r0, #:sb_g0_nc:(three_groups_needed_ldc_sb)
 121         add     r0, r0, #:sb_g1_nc:(three_groups_needed_ldc_sb)
 122         ldc     0, c0, [r0, #:sb_g2:(three_groups_needed_ldc_sb)]
 123
 124 @ This point in the file is .text + 0xbc.
 125
 126 one_group_needed_alu_pc:
 127 one_group_needed_ldrs_pc:
 128 one_group_needed_ldc_pc:
 129         mov     r0, #0
 130
 131 @ We will place the section .data at 0x03000000
 132
 133         .data
 134
 135         .word 0, 0, 0
 136 one_group_needed_alu_sb:
 137 one_group_needed_ldr_sb:
 138 one_group_needed_ldrs_sb:
 139 one_group_needed_ldc_sb:
 140         .word 1                         @ Offset 0xc
 141         .fill 0xeef0 - 16, 1, 0
 142 two_groups_needed_alu_sb:
 143 two_groups_needed_ldr_sb:
 144 two_groups_needed_ldrs_sb:
 145 two_groups_needed_ldc_sb:
 146         .word 2                         @ Offset 0xeef0
 147         .fill 0xffeef0 - 0xeef0 - 4, 1, 0
 148 three_groups_needed_alu_sb:
 149 three_groups_needed_ldr_sb:
 150 three_groups_needed_ldrs_sb:
 151 three_groups_needed_ldc_sb:
 152         .word 3                         @ Offset 0xffeef0
 153
 154 @ We will place the section alpha at 0xeef0.
 155
 156         .section alpha, "x"
 157
 158 two_groups_needed_alu_pc:
 159 two_groups_needed_ldr_pc:
 160 two_groups_needed_ldrs_pc:
 161 two_groups_needed_ldc_pc:
 162         mov     r0, #0
 163
 164 @ We will place the section beta at 0xffeef0.
 165
 166         .section beta, "x"
 167
 168 three_groups_needed_alu_pc:
 169 three_groups_needed_ldr_pc:
 170 three_groups_needed_ldrs_pc:
 171 three_groups_needed_ldc_pc:
 172         mov     r0, #0
 173