| 1 | # Copyright 2005 Free Software Foundation, Inc. |
| 2 | |
| 3 | # This program is free software; you can redistribute it and/or modify |
| 4 | # it under the terms of the GNU General Public License as published by |
| 5 | # the Free Software Foundation; either version 2 of the License, or |
| 6 | # (at your option) any later version. |
| 7 | # |
| 8 | # This program is distributed in the hope that it will be useful, |
| 9 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | # GNU General Public License for more details. |
| 12 | # |
| 13 | # You should have received a copy of the GNU General Public License |
| 14 | # along with this program; if not, write to the Free Software |
| 15 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 16 | |
| 17 | if $tracelevel { |
| 18 | strace $tracelevel |
| 19 | } |
| 20 | |
| 21 | set prms_id 0 |
| 22 | set bug_id 0 |
| 23 | |
| 24 | if ![istarget "alpha*-*-*"] then { |
| 25 | verbose "Skipping alpha step tests." |
| 26 | return |
| 27 | } |
| 28 | |
| 29 | set testfile "alpha-step" |
| 30 | set srcfile ${testfile}.c |
| 31 | set binfile ${objdir}/${subdir}/${testfile} |
| 32 | |
| 33 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {}] != "" } { |
| 34 | unsupported "Testcase compile failed." |
| 35 | return -1 |
| 36 | } |
| 37 | |
| 38 | gdb_exit |
| 39 | gdb_start |
| 40 | gdb_reinitialize_dir $srcdir/$subdir |
| 41 | gdb_load ${binfile} |
| 42 | |
| 43 | proc test_stepi {function } { |
| 44 | # Restart the program from scratch. If GDB got confused during one |
| 45 | # of the previous tests, this makes sure that it doesn't affect |
| 46 | # this series of tests. |
| 47 | if ![runto_main] then { |
| 48 | fail "Can't run to main" |
| 49 | return 0 |
| 50 | } |
| 51 | |
| 52 | # Insert a breakpoint on the FP branch instruction inside FUNCTION. |
| 53 | # Since the function has been hand written, we know this instruction |
| 54 | # is a "fb$function" located at FUNCTION+4. |
| 55 | gdb_test "break *$function+4" \ |
| 56 | "Breakpoint .* at .*" \ |
| 57 | "breakpoint on fb$function instruction" |
| 58 | |
| 59 | gdb_test "continue" \ |
| 60 | "Breakpoint .*, 0x\[0-9a-fA-F\]+ in $function\(\).*" \ |
| 61 | "continue to fb$function instruction (first call)" |
| 62 | |
| 63 | # Extra check to make sure we stopped on the FP branch instruction. |
| 64 | |
| 65 | gdb_test "x /i \$pc" \ |
| 66 | "0x\[0-9a-fA-F\]+ <.*>:\[ \t\]+fb$function\[ \t\]+.*" \ |
| 67 | "Check breakpoint on fb$function instruction (first call)" |
| 68 | |
| 69 | # Step test, followed by the check that we landed on the expected |
| 70 | # instruction (the testcase should be written in such a way that |
| 71 | # the branch is taken on the first call to this function. |
| 72 | |
| 73 | gdb_test "stepi" \ |
| 74 | "0x\[0-9a-fA-F\]+.*" \ |
| 75 | "stepi on fb$function (first call)" |
| 76 | |
| 77 | gdb_test "x /i \$pc" \ |
| 78 | "0x\[0-9a-fA-F\]+ <.*>:\[ \t\]+ret\[ \t\]+.*" \ |
| 79 | "Check stepi over fb$function stopped on ret" |
| 80 | |
| 81 | # Continue again. FUNCTION should be called a second time, this time |
| 82 | # with an argument such that the FP branch will not be taken. |
| 83 | |
| 84 | gdb_test "continue" \ |
| 85 | "Breakpoint .*, 0x\[0-9a-fA-F\]+ in $function\(\).*" \ |
| 86 | "continue to fb$function instruction (second call)" |
| 87 | |
| 88 | # Extra check to make sure we stopped on the FP branch instruction. |
| 89 | |
| 90 | gdb_test "x /i \$pc" \ |
| 91 | "0x\[0-9a-fA-F\]+ <.*>:\[ \t\]+fb$function\[ \t\]+.*" \ |
| 92 | "Check breakpoint on fb$function instruction (second call)" |
| 93 | |
| 94 | # Step test, branch should not be taken. |
| 95 | |
| 96 | gdb_test "stepi" \ |
| 97 | "0x\[0-9a-fA-F\]+.*" \ |
| 98 | "stepi on fb$function (branch not taken)" |
| 99 | |
| 100 | # Extra check to verify that we landed on the instruction we expected. |
| 101 | |
| 102 | gdb_test "x /i \$pc" \ |
| 103 | "0x\[0-9a-fA-F\]+ <.*>:\[ \t\]+fneg\[ \t\]+.*" \ |
| 104 | "Check stepi over fb$function stopped on fneg instruction" |
| 105 | |
| 106 | } |
| 107 | |
| 108 | test_stepi "gt" |
| 109 | test_stepi "ge" |
| 110 | test_stepi "lt" |
| 111 | test_stepi "le" |
| 112 | test_stepi "eq" |
| 113 | test_stepi "ne" |
| 114 | |