diff options
Diffstat (limited to 'gdb/testsuite/gdb.arch/i386-disp-step.S')
| -rw-r--r-- | gdb/testsuite/gdb.arch/i386-disp-step.S | 65 |
1 files changed, 62 insertions, 3 deletions
diff --git a/gdb/testsuite/gdb.arch/i386-disp-step.S b/gdb/testsuite/gdb.arch/i386-disp-step.S index a56ff1c..2d5c372 100644 --- a/gdb/testsuite/gdb.arch/i386-disp-step.S +++ b/gdb/testsuite/gdb.arch/i386-disp-step.S @@ -23,8 +23,11 @@ main: nop -/* test call/ret */ +/***********************************************/ + +/* Test call/ret. */ + nop .global test_call test_call: call test_call_subr @@ -33,16 +36,72 @@ test_call: test_ret_end: nop -/* test syscall */ +/***********************************************/ + +/* Absolute jump with leading prefixes. + These don't occur in normal code, but gdb should still DTRT. */ + + nop + .global test_prefixed_abs_jump +test_prefixed_abs_jump: + ds + jmp *test_prefixed_abs_jump_addr + .data +test_prefixed_abs_jump_addr: + .4byte test_prefixed_abs_jump_target + .text +test_prefixed_abs_jump_target: + nop + .global test_prefixed_abs_jump_end +test_prefixed_abs_jump_end: + nop + +/***********************************************/ + +/* Test syscall. */ - .global test_syscall mov $0x14,%eax /* getpid */ + .global test_syscall test_syscall: int $0x80 nop + .global test_syscall_end test_syscall_end: nop +/***********************************************/ + +/* Test syscall again, this time with a prefix. + These don't occur in normal code, but gdb should still DTRT. */ + + mov $0x14,%eax /* getpid */ + .global test_prefixed_syscall +test_prefixed_syscall: + repnz + int $0x80 + nop + .global test_prefixed_syscall_end +test_prefixed_syscall_end: + nop + +/***********************************************/ + +/* Test stepping over int3. + The prefixes are pointless, but it's possible, so we exercise it. */ + + nop + .global test_int3 +test_int3: + repz + repz + int3 + nop + .global test_int3_end +test_int3_end: + nop + +/***********************************************/ + /* all done */ pushl $0 |