GDB 7.6.50

gdb/testsuite/gdb.base/break-interp.exp

-# Copyright 2010-2012 Free Software Foundation, Inc.
+# Copyright 2010-2013 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 3 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 # This test only works on GNU/Linux.
 if { ![isnative] || [is_remote host] || [target_info exists use_gdb_stub]
      || ![istarget *-linux*] || [skip_shlib_tests]} {
     continue
 }
 
 load_lib prelink-support.exp
 
 set test "break-interp"
-set binprefix ${objdir}/${subdir}/${test}
+set binprefix [standard_output_file ${test}]
 # Only to get the $interp_system name.
 set srcfile_test "start.c"
 set binfile_test ${test}-test
-set binfile_lib ${objdir}/${subdir}/${test}.so
+set binfile_lib ${binprefix}.so
 set srcfile "${test}-main.c"
 set srcfile_lib "${test}-lib.c"
 
 if [get_compiler_info] {
     return -1
 }
 
 # Use -soname so that the new library gets copied by build_executable_own_libs.
 
 if {[gdb_compile_shlib ${srcdir}/${subdir}/${srcfile_lib} ${binfile_lib} [list debug ldflags=-Wl,-soname,${test}.so]] != ""} {
@@ skipping 36 matching lines @@
 gdb_exit
 gdb_start
 set debug_root ""
 set test "show debug-file-directory"
 gdb_test_multiple $test $test {
     -re "The directory where separate debug symbols are searched for is \"(.*)\".\r\n$gdb_prompt $" {
         set debug_root $expect_out(1,string)
     }
 }
 
-set interp_system [section_get ${objdir}/${subdir}/$binfile_test .interp]
+set interp_system [section_get [standard_output_file $binfile_test] .interp]
 set interp_system_debug [system_debug_get $interp_system]
 verbose -log "$interp_system has debug $interp_system_debug"
 
 proc prelinkNO {arg {name ""}} {
     return [prelink_no $arg $name]
 }
 
 proc prelinkYES {arg {name ""}} {
     return [prelink_yes $arg $name]
 }
 
 proc strip_debug {dest} {
     set test "strip [file tail $dest]"
     set strip_program [transform strip]
     set command "exec $strip_program --strip-debug $dest"
     verbose -log "command is $command"
     if [catch $command] {
         fail $test
         return 0
     } else {
         pass $test
         return 1
     }
 }
 
+# The marker function for the standard runtime linker interface is
+# _dl_debug_state.  The probes-based interface has no specific marker
+# function; the probe we will stop on (init_start) is in dl_main so we
+# check for that.
+
+set solib_bp {(_dl_debug_state|dl_main)}
+
 # Implementation of reach.
 
 proc reach_1 {func command displacement} {
-    global gdb_prompt expect_out
+    global gdb_prompt expect_out solib_bp
 
-    if {$func == "_dl_debug_state"} {
+    if {$func == $solib_bp} {
         # Breakpoint on _dl_debug_state can have problems due to its overlap
         # with the existing internal breakpoint from GDB.
         gdb_test_no_output "set stop-on-solib-events 1"
     } elseif {! [gdb_breakpoint $func allow-pending]} {
         return
     }
 
     set test "reach"
     set test_displacement "seen displacement message as $displacement"
     set debug_state_count 0
     gdb_test_multiple $command $test {
         -re "Using PIE \\(Position Independent Executable\\) displacement (0x\[0-9a-f\]+) " {
             # Missing "$gdb_prompt $" is intentional.
             if {$expect_out(1,string) == "0x0"} {
                 set case "ZERO"
             } else {
                 set case "NONZERO"
             }
             if {$displacement == $case || $displacement == "PRESENT"} {
                 pass $test_displacement
                 set displacement "FOUND-$displacement"
             } else {
                 fail $test_displacement
             }
             exp_continue
         }
         -re "Breakpoint \[0-9\]+, \\.?(__GI_)?$func \\(.*\\) at .*:\[0-9\]+\r\n.*$gdb_prompt $" {
-            if {$func == "_dl_debug_state"} {
+            if {$func == $solib_bp} {
                 fail $test
             } else {
                 pass $test
             }
         }
         -re "Breakpoint \[0-9\]+, \[0-9xa-f\]+ in \\.?(__GI_)?$func \\(\\).*\r\n$gdb_prompt $" {
-            if {$func == "_dl_debug_state"} {
+            if {$func == $solib_bp} {
                 fail $test
             } else {
                 pass $test
             }
         }
         -re "Stopped due to (spurious )?shared library event.*\r\n$gdb_prompt $" {
-            if {$func == "_dl_debug_state"} {
+            if {$func == $solib_bp} {
                 if {$debug_state_count == 0} {
                     # First stop does not yet relocate the _start function
                     # descriptor on ppc64.
                     set debug_state_count 1
                     send_gdb "continue\n"
                     exp_continue
                 } else {
                     pass $test
                 }
             } else {
                 fail $test
             }
         }
     }
     if ![regexp {^(NONE|FOUND-.*)$} $displacement] {
         fail $test_displacement
     }
 
-    if {$func == "_dl_debug_state"} {
+    if {$func == $solib_bp} {
         gdb_test_no_output "set stop-on-solib-events 0"
     }
 }
 
 # `runto' does not check we stopped really at the function we specified.
 # DISPLACEMENT can be "NONE" for no message to be present, "ZERO" for
 # displacement of 0 bytes to be present, "NONZERO" for displacement of non-0
 # bytes to be present and "PRESENT" if both "ZERO" and "NONZERO" are valid.
 proc reach {func command displacement} {
     with_test_prefix "reach-$func" {
         reach_1 $func $command $displacement
     }
 }
 
-proc test_core {file displacement} { with_test_prefix "core" {
-    global srcdir subdir gdb_prompt expect_out
+proc test_core {file displacement} {
+    with_test_prefix "core" {
+        global srcdir subdir gdb_prompt expect_out
 
-    set corefile [core_find $file {} "segv"]
-    if {$corefile == ""} {
-        return
+        set corefile [core_find $file {} "segv"]
+        if {$corefile == ""} {
+            return
+        }
+
+        gdb_exit
+        gdb_start
+        # Clear it to never find any separate debug infos in $debug_root.
+        gdb_test_no_output "set debug-file-directory" \
+            "set debug-file-directory for core"
+        gdb_reinitialize_dir $srcdir/$subdir
+        gdb_load $file
+
+        # Print the "PIE (Position Independent Executable) displacement" message.
+        gdb_test_no_output "set verbose on"
+
+        set test "core loaded"
+        set test_displacement "seen displacement message as $displacement"
+        gdb_test_multiple "core-file $corefile" $test {
+            -re "Using PIE \\(Position Independent Executable\\) displacement (0x\[0-9a-f\]+) " {
+                # Missing "$gdb_prompt $" is intentional.
+                if {$expect_out(1,string) == "0x0"} {
+                    set case "ZERO"
+                } else {
+                    set case "NONZERO"
+                }
+                if {$displacement == $case || $displacement == "PRESENT"} {
+                    pass $test_displacement
+                    set displacement "FOUND-$displacement"
+                } else {
+                    fail $test_displacement
+                }
+                exp_continue
+            }
+            -re "Core was generated by .*\r\n#0 .*$gdb_prompt $" {
+                # Do not check the binary filename as it may be truncated.
+                pass $test
+            }
+        }
+        if ![regexp {^(NONE|FOUND-.*)$} $displacement] {
+            fail $test_displacement
+        }
+
+        gdb_test "bt" "#\[0-9\]+ +\[^\r\n\]*\\mlibfunc\\M\[^\r\n\]*\r\n#\[0-9\]+ +\[^\r\n\]*\\mmain\\M.*" "core main bt"
     }
+}
 
-    gdb_exit
-    gdb_start
-    # Clear it to never find any separate debug infos in $debug_root.
-    gdb_test_no_output "set debug-file-directory" \
-        "set debug-file-directory for core"
-    gdb_reinitialize_dir $srcdir/$subdir
-    gdb_load $file
+proc test_attach_gdb {file pid displacement prefix} {
+    with_test_prefix "$prefix" {
+        global gdb_prompt expect_out
 
-    # Print the "PIE (Position Independent Executable) displacement" message.
-    gdb_test_no_output "set verbose on"
+        gdb_exit
+        gdb_start
 
-    set test "core loaded"
-    set test_displacement "seen displacement message as $displacement"
-    gdb_test_multiple "core-file $corefile" $test {
-        -re "Using PIE \\(Position Independent Executable\\) displacement (0x\[0-9a-f\]+) " {
-            # Missing "$gdb_prompt $" is intentional.
-            if {$expect_out(1,string) == "0x0"} {
-                set case "ZERO"
-            } else {
-                set case "NONZERO"
+        # Print the "PIE (Position Independent Executable) displacement" message.
+        gdb_test_no_output "set verbose on"
+
+        gdb_test "file $file" "Reading symbols from .*done\\." "file"
+
+        set test "attach"
+        gdb_test_multiple "attach $pid" $test {
+            -re "Attaching to (program: .*, )?process $pid\r\n" {
+                # Missing "$gdb_prompt $" is intentional.
+                pass $test
             }
-            if {$displacement == $case || $displacement == "PRESENT"} {
-                pass $test_displacement
-                set displacement "FOUND-$displacement"
-            } else {
-                fail $test_displacement
+        }
+
+        set test "attach final prompt"
+        set test_displacement "seen displacement message as $displacement"
+        gdb_test_multiple "" $test {
+            -re "Using PIE \\(Position Independent Executable\\) displacement (0x\[0-9a-f\]+) " {
+                # Missing "$gdb_prompt $" is intentional.
+                if {$expect_out(1,string) == "0x0"} {
+                    set case "ZERO"
+                } else {
+                    set case "NONZERO"
+                }
+                if {$displacement == $case || $displacement == "PRESENT"} {
+                    pass $test_displacement
+                    set displacement "FOUND-$displacement"
+                } else {
+                    fail $test_displacement
+                }
+                exp_continue
             }
-            exp_continue
+            -re "$gdb_prompt $" {
+                pass $test
+            }
         }
-        -re "Core was generated by .*\r\n#0 .*$gdb_prompt $" {
-            # Do not check the binary filename as it may be truncated.
-            pass $test
+        if ![regexp {^(NONE|FOUND-.*)$} $displacement] {
+            fail $test_displacement
         }
+
+        gdb_test "bt" "#\[0-9\]+ +\[^\r\n\]*\\mlibfunc\\M\[^\r\n\]*\r\n#\[0-9\]+ +\[^\r\n\]*\\mmain\\M.*" "attach main bt"
+        gdb_exit
     }
-    if ![regexp {^(NONE|FOUND-.*)$} $displacement] {
-        fail $test_displacement
-    }
-
-    gdb_test "bt" "#\[0-9\]+ +\[^\r\n\]*\\mlibfunc\\M\[^\r\n\]*\r\n#\[0-9\]+ +\[^\r\n\]*\\mmain\\M.*" "core main bt"
-}}
-
-proc test_attach_gdb {file pid displacement prefix} { with_test_prefix "$prefix" {
-    global gdb_prompt expect_out
-
-    gdb_exit
-    gdb_start
-
-    # Print the "PIE (Position Independent Executable) displacement" message.
-    gdb_test_no_output "set verbose on"
-
-    gdb_test "file $file" "Reading symbols from .*done\\." "file"
-
-    set test "attach"
-    gdb_test_multiple "attach $pid" $test {
-        -re "Attaching to (program: .*, )?process $pid\r\n" {
-            # Missing "$gdb_prompt $" is intentional.
-            pass $test
-        }
-    }
-
-    set test "attach final prompt"
-    set test_displacement "seen displacement message as $displacement"
-    gdb_test_multiple "" $test {
-        -re "Using PIE \\(Position Independent Executable\\) displacement (0x\[0-9a-f\]+) " {
-            # Missing "$gdb_prompt $" is intentional.
-            if {$expect_out(1,string) == "0x0"} {
-                set case "ZERO"
-            } else {
-                set case "NONZERO"
-            }
-            if {$displacement == $case || $displacement == "PRESENT"} {
-                pass $test_displacement
-                set displacement "FOUND-$displacement"
-            } else {
-                fail $test_displacement
-            }
-            exp_continue
-        }
-        -re "$gdb_prompt $" {
-            pass $test
-        }
-    }
-    if ![regexp {^(NONE|FOUND-.*)$} $displacement] {
-        fail $test_displacement
-    }
-
-    gdb_test "bt" "#\[0-9\]+ +\[^\r\n\]*\\mlibfunc\\M\[^\r\n\]*\r\n#\[0-9\]+ +\[^\r\n\]*\\mmain\\M.*" "attach main bt"
-    gdb_exit
-}}
+}
 
 proc test_attach {file displacement {relink_args ""}} {
     global board_info
     global exec
 
     gdb_exit
 
     set test "sleep function started"
 
     set command "${file} sleep"
-    set res [remote_spawn host $command];
+    set res [remote_spawn host $command]
     if { $res < 0 || $res == "" } {
         perror "Spawning $command failed."
         fail $test
         return
     }
     set pid [exp_pid -i $res]
     gdb_expect {
         -re "sleeping\r\n" {
             pass $test
         }
@@ skipping 39 matching lines @@
                 test_attach_gdb $exec $pid $displacement "attach-relink$relink"
             }
         }
         file_copy $interp_saved $interp
     }
 
     remote_exec host "kill -9 $pid"
 }
 
 proc test_ld {file ifmain trynosym displacement} {
-    global srcdir subdir gdb_prompt expect_out inferior_exited_re
+    global srcdir subdir gdb_prompt expect_out inferior_exited_re solib_bp
 
     # First test normal `file'-command loaded $FILE with symbols.
 
     gdb_exit
     gdb_start
     # Clear it to never find any separate debug infos in $debug_root.
     gdb_test_no_output "set debug-file-directory"
     gdb_reinitialize_dir $srcdir/$subdir
     gdb_load $file
 
     # Print the "PIE (Position Independent Executable) displacement" message.
     gdb_test_no_output "set verbose on"
 
     # We want to test the re-run of a PIE in the case where the executable
     # is loaded with a different displacement, but disable-randomization
     # prevents that from happening.  So turn it off.
     gdb_test "set disable-randomization off"
 
     if $ifmain {
         gdb_test_no_output "set args segv"
     } else {
-        global objdir binfile_test
+        global binfile_test
 
         # ld.so needs some executable to run to reach _dl_debug_state.
-        gdb_test_no_output "set args ${objdir}/${subdir}/$binfile_test" "set args OBJDIR/${subdir}/$binfile_test"
+        gdb_test_no_output "set args [standard_output_file $binfile_test]" \
+            "set args OBJDIR/${subdir}/$binfile_test"
     }
 
-    reach "_dl_debug_state" "run" $displacement
+    reach $solib_bp "run" $displacement
 
-    gdb_test "bt" "#0 +\[^\r\n\]*\\m(__GI_)?_dl_debug_state\\M.*" "dl bt"
+    gdb_test "bt" "#0 +\[^\r\n\]*\\m(__GI_)?$solib_bp\\M.*" "dl bt"
 
     if $ifmain {
         reach "main" continue "NONE"
 
         reach "libfunc" continue "NONE"
 
         gdb_test "bt" "#0 +\[^\r\n\]*\\mlibfunc\\M\[^\r\n\]*\r\n#1 +\[^\r\n\]*\\mmain\\M.*" "main bt"
     }
 
     # Try re-run if the new PIE displacement takes effect.
     gdb_test "kill" "" "kill" {Kill the program being debugged\? \(y or n\) } "y"
-    reach "_dl_debug_state" "run" $displacement
+    reach $solib_bp "run" $displacement
 
     if $ifmain {
         test_core $file $displacement
 
         test_attach $file $displacement
     }
 
     if !$trynosym {
         return
     }
@@ skipping 11 matching lines @@
 
         # Print the "PIE (Position Independent Executable)
         # displacement" message.
         gdb_test_no_output "set verbose on"
 
         # Test no (error) message has been printed by `exec-file'.
         set escapedfile [string_to_regexp $file]
         gdb_test "exec-file $file" "exec-file $escapedfile" "load"
 
         if $ifmain {
-            reach "_dl_debug_state" run $displacement
+            reach $solib_bp run $displacement
 
             # Use two separate gdb_test_multiple statements to avoid timeouts due
             # to slow processing of wildcard capturing long output
             set test "info files"
             set entrynohex ""
             gdb_test_multiple $test $test {
                 -re "\r\n\[\t \]*Entry point:\[\t \]*0x(\[0-9a-f\]+)\r\n" {
                     set entrynohex $expect_out(1,string)
                     gdb_test_multiple "" $test {
                         -re "\r\n$gdb_prompt $" {
@@ skipping 84 matching lines @@
                 file_copy $interp_system $interp
                 # Never call strip-debug before unprelink:
                 # prelink: ...: Section .note.gnu.build-id created after prelinking
                 if ![prelinkNO $interp] {
                     continue
                 }
                 strip_debug $interp
             } elseif {$ldsepdebug == "IN" && $interp_system_debug == ""} {
                 file_copy $interp_system $interp
             } elseif {$ldsepdebug == "IN" && $interp_system_debug != ""} {
-            file_copy $interp_system $interp
+                file_copy $interp_system $interp
                 file_copy $interp_system_debug "${interp}.debug"
                 # eu-unstrip: DWARF data in '...' not adjusted for prelinking bias; consider prelink -u
                 if {![prelinkNO $interp] || ![prelinkNO "${interp}.debug"]} {
                     continue
                 }
                 set test "eu-unstrip unprelinked:[file tail $interp_system] + [file tail $interp_system_debug] to [file tail $interp]"
                 set command "exec eu-unstrip -o $interp $interp ${interp}.debug"
                 verbose -log "command is $command"
                 if [catch $command] {
                     setup_xfail *-*-*
@@ skipping 60 matching lines @@
                             if {$binsepdebug != "NO"} {
                                 lappend opts {debug}
                             }
                             if {$binpie != "NO"} {
                                 lappend opts {additional_flags=-fPIE -pie}
                             }
 
                             set dir ${exec}.d
                             set relink_args [build_executable_own_libs ${test}.exp [file tail $exec] $srcfile $opts $interp $dir]
                             if {$relink_args == ""} {
-                                continue;
+                                continue
                             }
 
                             if {$binsepdebug == "SEP"} {
                                 gdb_gnu_strip_debug $exec
                             }
 
                             if {$binpie == "NO"} {
                                 set displacement "NONE"
                             } elseif {$binprelink == "NO"} {
                                 set displacement "NONZERO"
@@ skipping 38 matching lines @@
                             }
                         }
                     }
                 }
             }
 
             file delete $interp_saved
         }
     }
 }