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gas/ * config/tc-arm.c (md_pcrel_from_section): Keep base to zero for non-local branches (BFD_RELOC_THUMB_PCREL_BRANCH23, BFD_RELOC_THUMB_PCREL_BLX, BFD_RELOC_ARM_PCREL_BLX, BFD_RELOC_ARM_PCREL_CALL) gas/testsuite/ * gas/arm/branch-reloc.s, gas/arm/branch-reloc.d, gas/arm/branch-reloc.l: New tests and expected results with all variants of call: ARM/Thumb, local/global, inter/intra-section, using BL/BLX.gdb_7_1-branch
Christophe Lyon
16 years ago
6 changed files with 209 additions and 8 deletions
@ -0,0 +1,89 @@ |
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#name: Inter-section branch relocations |
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#This test is only valid on ELF based ports. |
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#not-target: *-*-*coff *-*-pe *-*-wince *-*-*aout* *-*-netbsd *-*-riscix* |
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#as: -march=armv5t |
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#objdump: -rd |
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#stderr: branch-reloc.l |
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# Test the generation of relocation for inter-section branches |
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.*: +file format.*arm.* |
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Disassembly of section .text: |
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00000000 <arm_glob_sym1-0x4>: |
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0: e1a00000 nop ; \(mov r0, r0\) |
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00000004 <arm_glob_sym1>: |
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4: ebfffffe bl 46 <thumb_glob_sym1> |
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4: R_ARM_CALL thumb_glob_sym1 |
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8: ebfffffe bl 100 <thumb_glob_sym2> |
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8: R_ARM_CALL thumb_glob_sym2 |
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c: fa00000c blx 44 <thumb_sym1> |
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10: ebfffffe bl 4 <arm_glob_sym1> |
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10: R_ARM_CALL arm_glob_sym1 |
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14: ebfffffe bl 13c <arm_glob_sym2> |
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14: R_ARM_CALL arm_glob_sym2 |
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18: eb000007 bl 3c <arm_sym1> |
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1c: fafffffe blx 46 <thumb_glob_sym1> |
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1c: R_ARM_CALL thumb_glob_sym1 |
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20: fafffffe blx 100 <thumb_glob_sym2> |
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20: R_ARM_CALL thumb_glob_sym2 |
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24: fa000006 blx 44 <thumb_sym1> |
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28: fafffffe blx 4 <arm_glob_sym1> |
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28: R_ARM_CALL arm_glob_sym1 |
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2c: fafffffe blx 13c <arm_glob_sym2> |
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2c: R_ARM_CALL arm_glob_sym2 |
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30: eb000001 bl 3c <arm_sym1> |
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34: e1a00000 nop ; \(mov r0, r0\) |
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38: e12fff1e bx lr |
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0000003c <arm_sym1>: |
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3c: e1a00000 nop ; \(mov r0, r0\) |
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40: e12fff1e bx lr |
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00000044 <thumb_sym1>: |
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44: 4770 bx lr |
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00000046 <thumb_glob_sym1>: |
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46: 4770 bx lr |
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Disassembly of section foo: |
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00000000 <thumb_glob_sym2-0x100>: |
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... |
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00000100 <thumb_glob_sym2>: |
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100: f7ff fffe bl 4 <thumb_glob_sym2-0xfc> |
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100: R_ARM_THM_CALL arm_glob_sym1 |
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104: f7ff fffe bl 13c <arm_glob_sym2> |
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104: R_ARM_THM_CALL arm_glob_sym2 |
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108: f000 e816 blx 138 <arm_sym2> |
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10c: f7ff fffe bl 46 <thumb_glob_sym2-0xba> |
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10c: R_ARM_THM_CALL thumb_glob_sym1 |
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110: f7ff fffe bl 100 <thumb_glob_sym2> |
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110: R_ARM_THM_CALL thumb_glob_sym2 |
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114: f000 f80e bl 134 <thumb_sym2> |
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118: f7ff effe blx 4 <thumb_glob_sym2-0xfc> |
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118: R_ARM_THM_CALL arm_glob_sym1 |
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11c: f7ff effe blx 13c <arm_glob_sym2> |
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11c: R_ARM_THM_CALL arm_glob_sym2 |
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120: f000 e80a blx 138 <arm_sym2> |
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124: f7ff effe blx 46 <thumb_glob_sym2-0xba> |
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124: R_ARM_THM_CALL thumb_glob_sym1 |
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128: f7ff effe blx 100 <thumb_glob_sym2> |
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128: R_ARM_THM_CALL thumb_glob_sym2 |
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12c: f000 f802 bl 134 <thumb_sym2> |
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130: 46c0 nop ; \(mov r8, r8\) |
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132: 4770 bx lr |
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00000134 <thumb_sym2>: |
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134: 46c0 nop ; \(mov r8, r8\) |
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136: 4770 bx lr |
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00000138 <arm_sym2>: |
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138: e12fff1e bx lr |
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0000013c <arm_glob_sym2>: |
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13c: e12fff1e bx lr |
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@ -0,0 +1,3 @@ |
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[^:]*: Assembler messages: |
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[^:]*:[0-9]*: Warning: blx to 'arm_sym1' an ARM ISA state function changed to bl |
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[^:]*:[0-9]*: Warning: blx to Thumb func 'thumb_sym2' from Thumb ISA state changed to bl |
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@ -0,0 +1,87 @@ |
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@ Check that non-local branches with and without mode switching |
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@ produce the right relocations with appropriate in-place addends. |
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.syntax unified |
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.text |
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.arm |
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.global arm_glob_sym1 |
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.global arm_glob_sym2 |
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.global thumb_glob_sym1 |
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.global thumb_glob_sym2 |
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nop |
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.type arm_glob_sym1, %function |
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arm_glob_sym1: |
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bl thumb_glob_sym1 |
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bl thumb_glob_sym2 |
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bl thumb_sym1 |
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bl arm_glob_sym1 |
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bl arm_glob_sym2 |
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bl arm_sym1 |
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blx thumb_glob_sym1 |
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blx thumb_glob_sym2 |
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blx thumb_sym1 |
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blx arm_glob_sym1 |
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blx arm_glob_sym2 |
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blx arm_sym1 |
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nop |
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bx lr |
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.type arm_sym1, %function |
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arm_sym1: |
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nop |
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bx lr |
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.thumb |
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.thumb_func |
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.type thumb_sym1, %function |
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thumb_sym1: |
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bx lr |
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.type thumb_glob_sym1, %function |
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.thumb_func |
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.thumb |
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thumb_glob_sym1: |
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bx lr |
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.section foo,"ax" |
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@ Add some space to avoid confusing objdump output: as we are |
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@ producing a relocatable file, objdump may match an address to |
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@ the wrong symbol (as symbols in different sections may have the same |
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@ address in the object file). |
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.space 0x100 |
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.type thumb_glob_sym2, %function |
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.thumb_func |
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.thumb |
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thumb_glob_sym2: |
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bl arm_glob_sym1 |
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bl arm_glob_sym2 |
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bl arm_sym2 |
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bl thumb_glob_sym1 |
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bl thumb_glob_sym2 |
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bl thumb_sym2 |
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blx arm_glob_sym1 |
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blx arm_glob_sym2 |
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blx arm_sym2 |
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blx thumb_glob_sym1 |
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blx thumb_glob_sym2 |
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blx thumb_sym2 |
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nop |
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bx lr |
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.type thumb_sym2, %function |
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thumb_sym2: |
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nop |
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bx lr |
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.arm |
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.type arm_sym2, %function |
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arm_sym2: |
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bx lr |
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.global arm_glob_sym2 |
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.type arm_glob_sym2, %function |
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arm_glob_sym2: |
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bx lr |
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