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| author | Yao Qi <yao@codesourcery.com> | 2011-02-15 14:26:34 +0000 |
|---|---|---|
| committer | Yao Qi <yao@codesourcery.com> | 2011-02-15 14:26:34 +0000 |
| commit | 494e194e77ee1e03d260268fc132dccf308f223e (patch) | |
| tree | 49847f1526839f4fd742587aef1a9901ed36ed93 /gdb/testsuite/gdb.arch | |
| parent | d9492458a11ca366f79a4c8fb03e312bfe0b047e (diff) | |
| download | gdb-494e194e77ee1e03d260268fc132dccf308f223e.zip gdb-494e194e77ee1e03d260268fc132dccf308f223e.tar.gz gdb-494e194e77ee1e03d260268fc132dccf308f223e.tar.bz2 | |
2011-02-15 Yao Qi <yao@codesourcery.com>
PR tdep/12352
* arm-tdep.c (copy_ldr_str_ldrb_strb): Replace PC with SP in
order to store PC value on stack instead of text section.
2011-02-15 Yao Qi <yao@codesourcery.com>
PR tdep/12352
* gdb.arch/arm-disp-step.S : New test for str instruction.
* gdb.arch/arm-disp-step.exp : Likewise
Diffstat (limited to 'gdb/testsuite/gdb.arch')
| -rw-r--r-- | gdb/testsuite/gdb.arch/arm-disp-step.S | 37 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.arch/arm-disp-step.exp | 37 |
2 files changed, 74 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.arch/arm-disp-step.S b/gdb/testsuite/gdb.arch/arm-disp-step.S index e1756e7..fb76974 100644 --- a/gdb/testsuite/gdb.arch/arm-disp-step.S +++ b/gdb/testsuite/gdb.arch/arm-disp-step.S @@ -48,6 +48,10 @@ test_ret_end: bl test_ldm_stm_pc #endif + /* Test str in ARM mode and Thumb-2 */ +#if !defined(__thumb__) + bl test_str_pc +#endif /* Return */ mov sp, r7 sub sp, sp, #4 @@ -118,3 +122,36 @@ test_ldm_stm_pc_ret: .word test_ldm_stm_pc_ret .size test_ldm_stm_pc, .-test_ldm_stm_pc #endif + +#if !defined(__thumb__) +#if defined (__thumb2__) + .code 16 + .thumb_func +#endif + .global test_str_pc + .type test_str_pc, %function +test_str_pc: + str pc, [sp, #-4] + ldr r0, [sp, #-4] + sub r0, r0, pc + /* compute offset again without displaced stepping. */ + str pc, [sp, #-4] + ldr r1, [sp, #-4] + sub r1, r1, pc + + /* r0 should be equal to r1. */ + cmp r0, r1 + bne pc_offset_wrong + + .global pc_offset_right +pc_offset_right: + b test_str_pc_end + + .global pc_offset_wrong +pc_offset_wrong: + nop + + .global test_str_pc_end +test_str_pc_end: + bx lr +#endif diff --git a/gdb/testsuite/gdb.arch/arm-disp-step.exp b/gdb/testsuite/gdb.arch/arm-disp-step.exp index 841bfce..3bea521 100644 --- a/gdb/testsuite/gdb.arch/arm-disp-step.exp +++ b/gdb/testsuite/gdb.arch/arm-disp-step.exp @@ -126,6 +126,42 @@ proc test_ldr_from_pc {} { ".*bx lr.*" } +########################################### + +proc test_str_pc {} { + global srcfile + gdb_test_multiple "break *test_str_pc" "break test_str_pc" { + -re "Breakpoint.*at.* file .*$srcfile, line.*" { + pass "break test_str_pc" + } + -re "No symbol.*" { + pass "break test_str_pc" + return + } + } + gdb_test "break *test_str_pc_end" \ + "Breakpoint.*at.* file .*$srcfile, line.*" \ + "break test_str_pc_end" + + # Set breakpoint on both lables pc_offset_right and pc_offset_wrong + gdb_test "break *pc_offset_right" \ + "Breakpoint.*at.* file .*$srcfile, line.*" \ + "break pc_offset_right" + gdb_test "break *pc_offset_wrong" \ + "Breakpoint.*at.* file .*$srcfile, line.*" \ + "break pc_offset_wrong" + + gdb_continue_to_breakpoint "continue to test_str_pc" \ + ".*str.*pc\,.*\[sp, #-4\].*" + # If breakpoint on lable pc_offset_wrong is hit, that means the offset + # computed in displaced stepping is different from offset computed + # without displaced stepping. Report a failure. + gdb_continue_to_breakpoint "continue to pc_offset_right" \ + ".*b.*test_str_pc_end.*" + gdb_continue_to_breakpoint "continue to test_str_pc_end" \ + ".*bx lr.*" +} + # Get things started. clean_restart ${testfile} @@ -165,6 +201,7 @@ test_ldr_from_pc test_ldm_stm_pc +test_str_pc ########################################## # Done, run program to exit. |