150 lines
4.7 KiB
Diff
150 lines
4.7 KiB
Diff
From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
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From: Fedora GDB patches <invalid@email.com>
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Date: Fri, 27 Oct 2017 21:07:50 +0200
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Subject: gdb-6.5-gcore-buffer-limit-test.patch
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;; Test gcore memory and time requirements for large inferiors.
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;;=fedoratest
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diff --git a/gdb/testsuite/gdb.base/gcore-excessive-memory.c b/gdb/testsuite/gdb.base/gcore-excessive-memory.c
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new file mode 100644
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--- /dev/null
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+++ b/gdb/testsuite/gdb.base/gcore-excessive-memory.c
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@@ -0,0 +1,37 @@
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+/* This testcase is part of GDB, the GNU debugger.
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+
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+ Copyright 2008 Free Software Foundation, Inc.
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+
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+ This program is free software; you can redistribute it and/or modify
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+ it under the terms of the GNU General Public License as published by
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+ the Free Software Foundation; either version 2 of the License, or
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+ (at your option) any later version.
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+
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+ This program is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ GNU General Public License for more details.
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+
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+ You should have received a copy of the GNU General Public License
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+ along with this program; if not, write to the Free Software
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+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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+
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+ Please email any bugs, comments, and/or additions to this file to:
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+ bug-gdb@prep.ai.mit.edu */
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+
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+#include <unistd.h>
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+#include <stdlib.h>
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+
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+#define MEGS 64
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+
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+int main()
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+{
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+ void *mem;
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+
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+ mem = malloc (MEGS * 1024ULL * 1024ULL);
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+
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+ for (;;)
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+ sleep (1);
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+
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+ return 0;
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+}
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diff --git a/gdb/testsuite/gdb.base/gcore-excessive-memory.exp b/gdb/testsuite/gdb.base/gcore-excessive-memory.exp
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new file mode 100644
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--- /dev/null
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+++ b/gdb/testsuite/gdb.base/gcore-excessive-memory.exp
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@@ -0,0 +1,94 @@
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+# Copyright 2008 Free Software Foundation, Inc.
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+
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+# This program is free software; you can redistribute it and/or modify
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+# it under the terms of the GNU General Public License as published by
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+# the Free Software Foundation; either version 2 of the License, or
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+# (at your option) any later version.
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+#
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+# This program is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+# GNU General Public License for more details.
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+#
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+# You should have received a copy of the GNU General Public License
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+# along with this program; if not, write to the Free Software
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+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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+
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+set testfile gcore-excessive-memory
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+set srcfile ${testfile}.c
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+set shfile [standard_output_file ${testfile}-gdb.sh]
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+set corefile [standard_output_file ${testfile}.core]
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+set binfile [standard_output_file ${testfile}]
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+if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
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+ untested "Couldn't compile test program"
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+ return -1
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+}
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+
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+set f [open "|getconf PAGESIZE" "r"]
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+gets $f pagesize
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+close $f
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+
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+set pid_of_bin [eval exec $binfile &]
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+sleep 2
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+
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+# Get things started.
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+
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+gdb_exit
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+gdb_start
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+gdb_reinitialize_dir $srcdir/$subdir
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+gdb_load ${binfile}
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+
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+set pid_of_gdb [exp_pid -i [board_info host fileid]]
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+
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+gdb_test "attach $pid_of_bin" "Attaching to .*" "attach"
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+gdb_test "up 99" "in main .*" "verify we can get to main"
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+
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+proc memory_v_pages_get {} {
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+ global pid_of_gdb pagesize
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+ set fd [open "/proc/$pid_of_gdb/statm"]
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+ gets $fd line
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+ close $fd
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+ # number of pages of virtual memory
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+ scan $line "%d" drs
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+ return $drs
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+}
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+
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+set pages_found [memory_v_pages_get]
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+
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+# It must be definitely less than `MEGS' of `gcore-excessive-memory.c'.
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+set mb_gcore_reserve 4
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+verbose -log "pages_found = $pages_found, mb_gcore_reserve = $mb_gcore_reserve"
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+set kb_found [expr $pages_found * $pagesize / 1024]
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+set kb_permit [expr $kb_found + 1 * 1024 + $mb_gcore_reserve * 1024]
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+verbose -log "kb_found = $kb_found, kb_permit = $kb_permit"
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+
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+# Create the ulimit wrapper.
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+set f [open $shfile "w"]
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+puts $f "#! /bin/sh"
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+puts $f "ulimit -v $kb_permit"
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+puts $f "exec $GDB \"\$@\""
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+close $f
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+remote_exec host "chmod +x $shfile"
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+
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+gdb_exit
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+set GDBold $GDB
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+set GDB "$shfile"
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+gdb_start
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+set GDB $GDBold
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+
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+gdb_reinitialize_dir $srcdir/$subdir
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+gdb_load ${binfile}
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+
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+set pid_of_gdb [exp_pid -i [board_info host fileid]]
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+
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+gdb_test "attach $pid_of_bin" "Attaching to .*" "attach"
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+gdb_test "up 99" "in main .*" "verify we can get to main"
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+
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+verbose -log "kb_found before gcore = [expr [memory_v_pages_get] * $pagesize / 1024]"
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+
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+gdb_test "gcore $corefile" "Saved corefile \[^\n\r\]*" "Save the core file"
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+
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+verbose -log "kb_found after gcore = [expr [memory_v_pages_get] * $pagesize / 1024]"
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+
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+# Cleanup.
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+exec kill -9 $pid_of_bin
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