diff options
Diffstat (limited to 'gdb-6.3-mapping-zero-inode-test.patch')
| -rw-r--r-- | gdb-6.3-mapping-zero-inode-test.patch | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/gdb-6.3-mapping-zero-inode-test.patch b/gdb-6.3-mapping-zero-inode-test.patch new file mode 100644 index 0000000..32b62d5 --- /dev/null +++ b/gdb-6.3-mapping-zero-inode-test.patch @@ -0,0 +1,247 @@ +From FEDORA_PATCHES Mon Sep 17 00:00:00 2001 +From: Fedora GDB patches <invalid@email.com> +Date: Fri, 27 Oct 2017 21:07:50 +0200 +Subject: gdb-6.3-mapping-zero-inode-test.patch + +;; Test GCORE for shmid 0 shared memory mappings. +;;=fedoratest: But it is broken anyway, sometimes the case being tested is not reproducible. + +diff --git a/gdb/testsuite/gdb.base/gcore-shmid0.c b/gdb/testsuite/gdb.base/gcore-shmid0.c +new file mode 100644 +--- /dev/null ++++ b/gdb/testsuite/gdb.base/gcore-shmid0.c +@@ -0,0 +1,128 @@ ++/* Copyright 2007, 2009 Free Software Foundation, Inc. ++ ++ This file is part of GDB. ++ ++ 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 2 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, write to the Free Software ++ Foundation, Inc., 59 Temple Place - Suite 330, ++ Boston, MA 02111-1307, USA. */ ++ ++/* ++ * Test GDB's handling of gcore for mapping with a name but zero inode. ++ */ ++ ++#include <sys/ipc.h> ++#include <sys/shm.h> ++#include <stdio.h> ++#include <errno.h> ++#include <stdlib.h> ++#include <unistd.h> ++#include <assert.h> ++#include <time.h> ++ ++/* The same test running in a parallel testsuite may steal us the zero SID, ++ even if we never get any EEXIST. Just try a while. */ ++ ++#define TIMEOUT_SEC 10 ++ ++static volatile int v; ++ ++static void ++initialized (void) ++{ ++ v++; ++} ++ ++static void ++unresolved (void) ++{ ++ v++; ++} ++ ++int ++main (void) ++{ ++ int sid; ++ unsigned int *addr = (void *) -1L; ++ int attempt, round = 0; ++ time_t ts_start, ts; ++ ++ if (time (&ts_start) == (time_t) -1) ++ { ++ printf ("time (): %m\n"); ++ exit (1); ++ } ++ ++ /* The generated SID will cycle with an increment of 32768, attempt until it ++ * wraps to 0. */ ++ ++ for (attempt = 0; addr == (void *) -1L; attempt++) ++ { ++ /* kernel-2.6.25-8.fc9.x86_64 just never returns the value 0 by ++ shmget(2). shmget returns SID range 0..1<<31 in steps of 32768, ++ 0x1000 should be enough but wrap the range it to be sure. */ ++ ++ if (attempt > 0x21000) ++ { ++ if (time (&ts) == (time_t) -1) ++ { ++ printf ("time (): %m\n"); ++ exit (1); ++ } ++ ++ if (ts >= ts_start && ts < ts_start + TIMEOUT_SEC) ++ { ++ attempt = 0; ++ round++; ++ continue; ++ } ++ ++ printf ("Problem is not reproducible on this kernel (attempt %d, " ++ "round %d)\n", attempt, round); ++ unresolved (); ++ exit (1); ++ } ++ ++ sid = shmget ((key_t) rand (), 0x1000, IPC_CREAT | IPC_EXCL | 0777); ++ if (sid == -1) ++ { ++ if (errno == EEXIST) ++ continue; ++ ++ printf ("shmget (%d, 0x1000, IPC_CREAT): errno %d\n", 0, errno); ++ exit (1); ++ } ++ ++ /* Use SID only if it is 0, retry it otherwise. */ ++ ++ if (sid == 0) ++ { ++ addr = shmat (sid, NULL, SHM_RND); ++ if (addr == (void *) -1L) ++ { ++ printf ("shmat (%d, NULL, SHM_RND): errno %d\n", sid, ++ errno); ++ exit (1); ++ } ++ } ++ if (shmctl (sid, IPC_RMID, NULL) != 0) ++ { ++ printf ("shmctl (%d, IPC_RMID, NULL): errno %d\n", sid, errno); ++ exit (1); ++ } ++ } ++ ++ initialized (); ++ ++ return 0; ++} +diff --git a/gdb/testsuite/gdb.base/gcore-shmid0.exp b/gdb/testsuite/gdb.base/gcore-shmid0.exp +new file mode 100644 +--- /dev/null ++++ b/gdb/testsuite/gdb.base/gcore-shmid0.exp +@@ -0,0 +1,101 @@ ++# Copyright 2007, 2009 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 2 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, write to the Free Software ++# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ ++# Test GDB's handling of gcore for mapping with a name but zero inode. ++ ++if { [prepare_for_testing gcore-shmid0.exp gcore-shmid0] } { ++ return -1 ++} ++ ++# Does this gdb support gcore? ++set test "help gcore" ++gdb_test_multiple $test $test { ++ -re "Undefined command: .gcore.*$gdb_prompt $" { ++ # gcore command not supported -- nothing to test here. ++ unsupported "gdb does not support gcore on this target" ++ return -1; ++ } ++ -re "Save a core file .*$gdb_prompt $" { ++ pass $test ++ } ++} ++ ++if { ! [ runto_main ] } then { ++ untested gcore-shmid0.exp ++ return -1 ++} ++ ++gdb_breakpoint "initialized" ++gdb_breakpoint "unresolved" ++ ++set oldtimeout $timeout ++set timeout [expr $oldtimeout + 120] ++ ++set test "Continue to initialized." ++gdb_test_multiple "continue" $test { ++ -re "Breakpoint .*, initialized .* at .*\r\n$gdb_prompt $" { ++ pass $test ++ } ++ -re "Breakpoint .*, unresolved .* at .*\r\n$gdb_prompt $" { ++ set timeout $oldtimeout ++ unsupported $test ++ return -1 ++ } ++} ++set timeout $oldtimeout ++ ++set escapedfilename [string_to_regexp [standard_output_file gcore-shmid0.test]] ++ ++set test "save a corefile" ++gdb_test_multiple "gcore [standard_output_file gcore-shmid0.test]" $test { ++ -re "Saved corefile ${escapedfilename}\[\r\n\]+$gdb_prompt $" { ++ pass $test ++ } ++ -re "Can't create a corefile\[\r\n\]+$gdb_prompt $" { ++ unsupported $test ++ } ++} ++ ++# Be sure to remove the handle first. ++# But it would get removed even on a kill by GDB as the handle is already ++# deleted, just it is still attached. ++gdb_continue_to_end "finish" ++ ++set test "core-file command" ++gdb_test_multiple "core-file [standard_output_file gcore-shmid0.test]" $test { ++ -re ".* program is being debugged already.*y or n. $" { ++ # gdb_load may connect us to a gdbserver. ++ send_gdb "y\n" ++ exp_continue; ++ } ++ -re "Core was generated by .*\r\n\#0 .*\\\(\\\).*\r\n$gdb_prompt $" { ++ # The filename does not fit there anyway so do not check it. ++ pass $test ++ } ++ -re ".*registers from core file: File in wrong format.* $" { ++ fail "core-file command (could not read registers from core file)" ++ } ++} ++ ++set test "backtrace" ++gdb_test_multiple "bt" $test { ++ -re "#0 *initialized \\\(\\\) at .*#1 .* main \\\(.*$gdb_prompt $" { ++ pass $test ++ } ++ -re "#0 *initialized \\\(\\\) at .*Cannot access memory at address .*$gdb_prompt $" { ++ fail $test ++ } ++} |