| # Copyright 1997-2020 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 is a test of gdb's ability to follow a process through a |
| # Unix exec() system call. |
| |
| # Until "catch exec" is implemented on other targets... |
| # |
| if { ![istarget "*-linux*"] } then { |
| continue |
| } |
| |
| standard_testfile foll-exec.c |
| |
| set testfile2 "execd-prog" |
| set srcfile2 ${testfile2}.c |
| set binfile2 [standard_output_file ${testfile2}] |
| |
| set compile_options debug |
| |
| # build the first test case |
| if { [gdb_compile "${srcdir}/${subdir}/${srcfile2}" "${binfile2}" executable $compile_options] != "" } { |
| untested "failed to compile" |
| return -1 |
| } |
| |
| if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $compile_options] != "" } { |
| untested "failed to compile" |
| return -1 |
| } |
| |
| proc do_exec_tests {} { |
| global binfile srcfile srcfile2 testfile testfile2 |
| global gdb_prompt |
| |
| # Start the program running, and stop at main. |
| # |
| if ![runto_main] then { |
| fail "couldn't run ${testfile}" |
| return |
| } |
| |
| # Verify that the system supports "catch exec". |
| gdb_test "catch exec" "Catchpoint \[0-9\]* \\(exec\\)" "insert first exec catchpoint" |
| set has_exec_catchpoints 0 |
| gdb_test_multiple "continue" "continue to first exec catchpoint" { |
| -re ".*Your system does not support this type\r\nof catchpoint.*$gdb_prompt $" { |
| unsupported "continue to first exec catchpoint" |
| } |
| -re ".*Catchpoint.*$gdb_prompt $" { |
| set has_exec_catchpoints 1 |
| pass "continue to first exec catchpoint" |
| } |
| } |
| |
| if {$has_exec_catchpoints == 0} { |
| unsupported "exec catchpoints" |
| return |
| } |
| |
| clean_restart $binfile |
| |
| # Start the program running, and stop at main. |
| # |
| if ![runto_main] then { |
| fail "couldn't run ${testfile}" |
| return |
| } |
| # Execute the code setting up variable PROG. |
| set tbreak_line [gdb_get_line_number " tbreak-execlp " $srcfile] |
| gdb_test "tbreak ${tbreak_line}" |
| gdb_continue_to_breakpoint "line tbreak-execlp" ".*execlp \\(.*" |
| |
| # Verify that we can see various global and local variables |
| # in this program, and that they have expected values. Some |
| # of these variables are also declared in the program we'll |
| # exec in a moment. |
| # |
| |
| send_gdb "print global_i\n" |
| gdb_expect { |
| -re ".* = 100.*$gdb_prompt $"\ |
| {pass "print follow-exec/global_i"} |
| -re "$gdb_prompt $" {fail "print follow-exec/global_i"} |
| timeout {fail "(timeout) print follow-exec/global_i"} |
| } |
| send_gdb "print local_j\n" |
| gdb_expect { |
| -re ".* = 101.*$gdb_prompt $"\ |
| {pass "print follow-exec/local_j"} |
| -re "$gdb_prompt $" {fail "print follow-exec/local_j"} |
| timeout {fail "(timeout) print follow-exec/local_j"} |
| } |
| send_gdb "print local_k\n" |
| gdb_expect { |
| -re ".* = 102.*$gdb_prompt $"\ |
| {pass "print follow-exec/local_k"} |
| -re "$gdb_prompt $" {fail "print follow-exec/local_k"} |
| timeout {fail "(timeout) print follow-exec/local_k"} |
| } |
| |
| # Try stepping through an execlp call, without catching it. |
| # We should stop in execd-program, at its first statement. |
| # |
| set execd_line [gdb_get_line_number "after-exec" $srcfile2] |
| send_gdb "next\n" |
| gdb_expect { |
| -re ".*xecuting new program: .*${testfile2}.*${srcfile2}:${execd_line}.*int local_j = argc;.*$gdb_prompt $"\ |
| {pass "step through execlp call"} |
| -re "$gdb_prompt $" {fail "step through execlp call"} |
| timeout {fail "(timeout) step through execlp call"} |
| } |
| |
| # Verify that we can see the variables defined in the newly-exec'd |
| # program, and CANNOT see those defined in the exec'ing program. |
| # |
| send_gdb "next\n" |
| gdb_expect { |
| -re "printf \\(.Hello .*$gdb_prompt $"\ |
| {pass "step after execlp call"} |
| -re "$gdb_prompt $" {fail "step after execlp call"} |
| timeout {fail "(timeout) step after execlp call"} |
| } |
| send_gdb "print global_i\n" |
| gdb_expect { |
| -re ".* = 0.*$gdb_prompt $"\ |
| {pass "print execd-program/global_i (after execlp)"} |
| -re "$gdb_prompt $" {fail "print execd-program/global_i (after execlp)"} |
| timeout {fail "(timeout) print execd-program/global_i (after execlp)"} |
| } |
| send_gdb "print local_j\n" |
| gdb_expect { |
| -re ".* = 2.*$gdb_prompt $"\ |
| {pass "print execd-program/local_j (after execlp)"} |
| -re "$gdb_prompt $" {fail "print execd-program/local_j (after execlp)"} |
| timeout {fail "(timeout) print execd-program/local_j (after execlp)"} |
| } |
| send_gdb "print local_k\n" |
| gdb_expect { |
| -re "No symbol \"local_k\" in current context.*$gdb_prompt $"\ |
| {pass "print follow-exec/local_k (after execlp)"} |
| -re "$gdb_prompt $" {fail "print follow-exec/local_k (after execlp)"} |
| timeout {fail "(timeout) print follow-exec/local_k (after execlp)"} |
| } |
| |
| # Explicitly kill this program, or a subsequent rerun actually runs |
| # the exec'd program, not the original program... |
| clean_restart $binfile |
| |
| # Start the program running, and stop at main. |
| # |
| if ![runto_main] then { |
| fail "couldn't run ${testfile} (2nd try)" |
| return |
| } |
| |
| # Verify that we can catch an exec event, and then continue |
| # to follow through the exec. (Since there's a breakpoint on |
| # "main", it'll also be transferred to the exec'd program, |
| # and we expect to stop there.) |
| # |
| send_gdb "catch exec\n" |
| gdb_expect { |
| -re "Catchpoint .*(exec).*$gdb_prompt $"\ |
| {pass "set catch exec"} |
| -re "$gdb_prompt $" {fail "set catch exec"} |
| timeout {fail "(timeout) set catch exec"} |
| } |
| |
| # Verify that the catchpoint is mentioned in an "info breakpoints", |
| # and further that the catchpoint mentions no program name. |
| # |
| set msg "info shows catchpoint without exec pathname" |
| gdb_test_multiple "info breakpoints" $msg { |
| -re ".*catchpoint.*keep y.*exec\[\n\r\]+$gdb_prompt $" { |
| pass $msg |
| } |
| } |
| |
| send_gdb "continue\n" |
| gdb_expect { |
| -re ".*xecuting new program:.*${testfile2}.*Catchpoint .*(exec\'d .*${testfile2}).*$gdb_prompt $"\ |
| {pass "hit catch exec"} |
| -re "$gdb_prompt $" {fail "hit catch exec"} |
| timeout {fail "(timeout) hit catch exec"} |
| } |
| |
| # DTS CLLbs16760 |
| # test gets out of sync if previous test fails. |
| gdb_test "bt" ".*" "sync up after possible failure 1" |
| gdb_test "bt" "#0.*" "sync up after possible failure 2" |
| |
| # Verify that the catchpoint is mentioned in an "info breakpoints", |
| # and further that the catchpoint managed to capture the exec'd |
| # program's name. |
| # |
| set msg "info shows catchpoint exec pathname" |
| gdb_test_multiple "info breakpoints" $msg { |
| -re ".*catchpoint.*keep y.*exec, program \".*${testfile2}\".*$gdb_prompt $" { |
| pass $msg |
| } |
| } |
| |
| # Verify that we can continue from the catchpoint, and land in the |
| # main of the newly-exec'd program. |
| # |
| send_gdb "continue\n" |
| gdb_expect { |
| -re ".*${srcfile2}:${execd_line}.*$gdb_prompt $"\ |
| {pass "continue after hit catch exec"} |
| -re "$gdb_prompt $" {fail "continue after hit catch exec"} |
| timeout {fail "(timeout) continue after hit catch exec"} |
| } |
| |
| # Explicitly kill this program, or a subsequent rerun actually runs |
| # the exec'd program, not the original program... |
| clean_restart $binfile |
| |
| # Start the program running, and stop at main. |
| # |
| if ![runto_main] then { |
| fail "couldn't run ${testfile} (3rd try)" |
| return |
| } |
| # Execute the code setting up variable PROG. |
| set tbreak_line [gdb_get_line_number " tbreak-execlp " $srcfile] |
| gdb_test "tbreak ${tbreak_line}" |
| gdb_continue_to_breakpoint "line tbreak-execlp" ".*execlp \\(.*" |
| |
| # Verify that we can follow through follow an execl() |
| # call. (We must jump around earlier exec* calls.) |
| # |
| set tbreak_line [gdb_get_line_number " tbreak-execl " $srcfile] |
| send_gdb "tbreak ${tbreak_line}\n" |
| gdb_expect { |
| -re "Temporary breakpoint .*file .*${srcfile}, line ${tbreak_line}.*$gdb_prompt $"\ |
| {pass "prepare to jump to execl call"} |
| -re "$gdb_prompt $" {fail "prepare to jump to execl call"} |
| timeout {fail "(timeout) prepare to jump to execl call"} |
| } |
| send_gdb "jump ${tbreak_line}\n" |
| gdb_expect { |
| -re "main.* at .*${srcfile}:${tbreak_line}.*$gdb_prompt $"\ |
| {pass "jump to execl call"} |
| -re "$gdb_prompt $" {fail "jump to execl call"} |
| timeout {fail "(timeout) jump to execl call"} |
| } |
| # Note that stepping through an exec call causes the step-count |
| # to be reset to zero. I.e.: you may specify "next 2" at the |
| # call, but you'll actually stop at the first breakpoint set in |
| # the newly-exec'd program, not after the remaining step-count |
| # reaches zero. |
| # |
| send_gdb "next 2\n" |
| gdb_expect { |
| -re ".*xecuting new program: .*${testfile2}.*${srcfile2}:${execd_line}.*int local_j = argc;.*$gdb_prompt $"\ |
| {pass "step through execl call"} |
| -re "$gdb_prompt $" {fail "step through execl call"} |
| timeout {fail "(timeout) step through execl call"} |
| } |
| send_gdb "next\n" |
| gdb_expect { |
| -re "printf \\(.Hello .*$gdb_prompt $"\ |
| {pass "step after execl call"} |
| -re "$gdb_prompt $" {fail "step after execl call"} |
| timeout {fail "(timeout) step after execl call"} |
| } |
| |
| # Verify that we can print a local variable (which happens to be |
| # assigned the value of main's argc). |
| # |
| send_gdb "print local_j\n" |
| gdb_expect { |
| -re ".* = 3.*$gdb_prompt $"\ |
| {pass "print execd-program/local_j (after execl)"} |
| -re "$gdb_prompt $" {fail "print execd-program/local_j (after execl)"} |
| timeout {fail "(timeout) print execd-program/local_j (after execl)"} |
| } |
| |
| # Explicitly kill this program, or a subsequent rerun actually runs |
| # the exec'd program, not the original program... |
| clean_restart $binfile |
| |
| # Start the program running, and stop at main. |
| # |
| if ![runto_main] then { |
| fail "couldn't run ${testfile} (4th try)" |
| return |
| } |
| # Execute the code setting up variable PROG. |
| set tbreak_line [gdb_get_line_number " tbreak-execlp " $srcfile] |
| gdb_test "tbreak ${tbreak_line}" |
| gdb_continue_to_breakpoint "line tbreak-execlp" ".*execlp \\(.*" |
| |
| # Verify that we can follow through follow an execv() |
| # call. (We must jump around earlier exec* calls.) |
| # |
| set tbreak_line [gdb_get_line_number "tbreak-execv"] |
| send_gdb "tbreak ${tbreak_line}\n" |
| gdb_expect { |
| -re "Temporary breakpoint .*file .*${srcfile}, line ${tbreak_line}.*$gdb_prompt $"\ |
| {pass "prepare to jump to execv call"} |
| -re "$gdb_prompt $" {fail "prepare to jump to execv call"} |
| timeout {fail "(timeout) prepare to jump to execv call"} |
| } |
| send_gdb "jump ${tbreak_line}\n" |
| gdb_expect { |
| -re "main.* at .*${srcfile}:${tbreak_line}.*$gdb_prompt $"\ |
| {pass "jump to execv call"} |
| -re "$gdb_prompt $" {fail "jump to execv call"} |
| timeout {fail "(timeout) jump to execv call"} |
| } |
| send_gdb "next\n" |
| gdb_expect { |
| -re ".*xecuting new program: .*${testfile2}.*${srcfile2}:${execd_line}.*int local_j = argc;.*$gdb_prompt $"\ |
| {pass "step through execv call"} |
| -re "$gdb_prompt $" {fail "step through execv call"} |
| timeout {fail "(timeout) step through execv call"} |
| } |
| send_gdb "next\n" |
| gdb_expect { |
| -re "printf \\(.Hello .*$gdb_prompt $"\ |
| {pass "step after execv call"} |
| -re "$gdb_prompt $" {fail "step after execv call"} |
| timeout {fail "(timeout) step after execv call"} |
| } |
| |
| # Verify that we can print a local variable (which happens to be |
| # assigned the value of main's argc). |
| # |
| send_gdb "print local_j\n" |
| gdb_expect { |
| -re ".* = 2.*$gdb_prompt $"\ |
| {pass "print execd-program/local_j (after execv)"} |
| -re "$gdb_prompt $" {fail "print execd-program/local_j (after execv)"} |
| timeout {fail "(timeout) print execd-program/local_j (after execv)"} |
| } |
| |
| # Explicitly kill this program, or a subsequent rerun actually runs |
| # the exec'd program, not the original program... |
| clean_restart $binfile |
| |
| # Start the program running, and stop at main. |
| # |
| if ![runto_main] then { |
| fail "couldn't run ${testfile} (5th try)" |
| return |
| } |
| |
| # Verify that we can just continue and thereby follow through an |
| # exec call. (Since the breakpoint on "main" is reset, we should |
| # just stop in main of the newly-exec'd program.) |
| # |
| send_gdb "continue\n" |
| gdb_expect { |
| -re ".*xecuting new program: .*${testfile2}.*${srcfile2}:${execd_line}.*int local_j = argc;.*$gdb_prompt $"\ |
| {pass "continue through exec"} |
| -re "$gdb_prompt $" {fail "continue through exec"} |
| timeout {fail "(timeout) continue through exec"} |
| } |
| } |
| |
| # Start with a fresh gdb |
| |
| gdb_exit |
| clean_restart $binfile |
| |
| do_exec_tests |
| |
| return 0 |
