rpms/strace
7
0
Fork 0
Code Issues Pull Requests Releases Activity

import strace-4.24-3.el8

Browse Source
This commit is contained in:
CentOS Sources 2019-05-07 07:27:30 -04:00 committed by Andrew Lukoshko
commit e99d71d998
7 changed files with 1932 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
.gitignore vendored Normal file
View File

@ -0,0 +1 @@
SOURCES/strace-4.24.tar.xz

1
.strace.metadata Normal file
View File

@ -0,0 +1 @@
09a8c9638fd02622157af9d744ad7c7f991c75df SOURCES/strace-4.24.tar.xz

291
SOURCES/strace-rhbz1610774-0000-strace.c-introduce-struct-tcb_wait_data.patch Normal file
View File

@ -0,0 +1,291 @@
From 14ae61f37b7c4ec236f011ab5c5866b43f6766b4 Mon Sep 17 00:00:00 2001
From: "Dmitry V. Levin" <ldv@altlinux.org>
Date: Tue, 14 Aug 2018 13:43:34 +0000
Subject: [PATCH] strace.c: introduce struct tcb_wait_data
Introduce a new structure to pass information between next_event(),
restart_delayed_tcb(), and dispatch_event().
This is going to be used by a subsequent change of next_event().
* strace.c (struct tcb_wait_data): New type.
(next_event): Remove parameters, return a pointer
to const struct tcb_wait_data. Return NULL instead of TE_BREAK.
(dispatch_event): Replace all parameters with a pointer
to const struct tcb_wait_data, obtain the trace event, siginfo,
and status from its fields.
(restart_delayed_tcb): Add local struct tcb_wait_data variable
with te field set to TE_RESTART, pass it to dispatch_event().
(main): Remove status and si variables, update next_event()
and dispatch_event() invocations.
Co-Authored-by: Eugene Syromyatnikov <evgsyr@gmail.com>
---
strace.c | 107 ++++++++++++++++++++++++++++++++++++++++-----------------------
1 file changed, 69 insertions(+), 38 deletions(-)
diff --git a/strace.c b/strace.c
index cd04b98..6d70d20 100644
--- a/strace.c
+++ b/strace.c
@@ -158,6 +158,12 @@ static bool open_append;
struct tcb *printing_tcp;
static struct tcb *current_tcp;
+struct tcb_wait_data {
+ enum trace_event te; /**< Event passed to dispatch_event() */
+ int status; /**< status, returned by wait4() */
+ siginfo_t si; /**< siginfo, returned by PTRACE_GETSIGINFO */
+};
+
static struct tcb **tcbtab;
static unsigned int nprocs;
static size_t tcbtabsize;
@@ -2226,16 +2232,19 @@ print_event_exit(struct tcb *tcp)
line_ended();
}
-static enum trace_event
-next_event(int *pstatus, siginfo_t *si)
+static const struct tcb_wait_data *
+next_event(void)
{
+ static struct tcb_wait_data wait_data;
+
int pid;
int status;
struct tcb *tcp;
+ struct tcb_wait_data *wd = &wait_data;
struct rusage ru;
if (interrupted)
- return TE_BREAK;
+ return NULL;
/*
* Used to exit simply when nprocs hits zero, but in this testcase:
@@ -2255,7 +2264,7 @@ next_event(int *pstatus, siginfo_t *si)
* on exit. Oh well...
*/
if (nprocs == 0)
- return TE_BREAK;
+ return NULL;
}
const bool unblock_delay_timer = is_delay_timer_armed();
@@ -2278,7 +2287,7 @@ next_event(int *pstatus, siginfo_t *si)
* then the system call will be interrupted and
* the expiration will be handled by the signal handler.
*/
- pid = wait4(-1, pstatus, __WALL, (cflag ? &ru : NULL));
+ pid = wait4(-1, &status, __WALL, (cflag ? &ru : NULL));
const int wait_errno = errno;
/*
@@ -2292,14 +2301,16 @@ next_event(int *pstatus, siginfo_t *si)
sigprocmask(SIG_BLOCK, &timer_set, NULL);
if (restart_failed)
- return TE_BREAK;
+ return NULL;
}
if (pid < 0) {
- if (wait_errno == EINTR)
- return TE_NEXT;
+ if (wait_errno == EINTR) {
+ wd->te = TE_NEXT;
+ return wd;
+ }
if (nprocs == 0 && wait_errno == ECHILD)
- return TE_BREAK;
+ return NULL;
/*
* If nprocs > 0, ECHILD is not expected,
* treat it as any other error here:
@@ -2308,12 +2319,13 @@ next_event(int *pstatus, siginfo_t *si)
perror_msg_and_die("wait4(__WALL)");
}
- status = *pstatus;
+ wd->status = status;
if (pid == popen_pid) {
if (!WIFSTOPPED(status))
popen_pid = 0;
- return TE_NEXT;
+ wd->te = TE_NEXT;
+ return wd;
}
if (debug_flag)
@@ -2324,8 +2336,10 @@ next_event(int *pstatus, siginfo_t *si)
if (!tcp) {
tcp = maybe_allocate_tcb(pid, status);
- if (!tcp)
- return TE_NEXT;
+ if (!tcp) {
+ wd->te = TE_NEXT;
+ return wd;
+ }
}
clear_regs(tcp);
@@ -2342,11 +2356,15 @@ next_event(int *pstatus, siginfo_t *si)
tcp->stime = stime;
}
- if (WIFSIGNALED(status))
- return TE_SIGNALLED;
+ if (WIFSIGNALED(status)) {
+ wd->te = TE_SIGNALLED;
+ return wd;
+ }
- if (WIFEXITED(status))
- return TE_EXITED;
+ if (WIFEXITED(status)) {
+ wd->te = TE_EXITED;
+ return wd;
+ }
/*
* As WCONTINUED flag has not been specified to wait4,
@@ -2373,19 +2391,19 @@ next_event(int *pstatus, siginfo_t *si)
if (sig == SIGSTOP && (tcp->flags & TCB_IGNORE_ONE_SIGSTOP)) {
debug_func_msg("ignored SIGSTOP on pid %d", tcp->pid);
tcp->flags &= ~TCB_IGNORE_ONE_SIGSTOP;
- return TE_RESTART;
+ wd->te = TE_RESTART;
} else if (sig == syscall_trap_sig) {
- return TE_SYSCALL_STOP;
+ wd->te = TE_SYSCALL_STOP;
} else {
- *si = (siginfo_t) {};
+ memset(&wd->si, 0, sizeof(wd->si));
/*
* True if tracee is stopped by signal
* (as opposed to "tracee received signal").
* TODO: shouldn't we check for errno == EINVAL too?
* We can get ESRCH instead, you know...
*/
- bool stopped = ptrace(PTRACE_GETSIGINFO, pid, 0, si) < 0;
- return stopped ? TE_GROUP_STOP : TE_SIGNAL_DELIVERY_STOP;
+ bool stopped = ptrace(PTRACE_GETSIGINFO, pid, 0, &wd->si) < 0;
+ wd->te = stopped ? TE_GROUP_STOP : TE_SIGNAL_DELIVERY_STOP;
}
break;
case PTRACE_EVENT_STOP:
@@ -2398,16 +2416,23 @@ next_event(int *pstatus, siginfo_t *si)
case SIGTSTP:
case SIGTTIN:
case SIGTTOU:
- return TE_GROUP_STOP;
+ wd->te = TE_GROUP_STOP;
+ break;
+ default:
+ wd->te = TE_RESTART;
}
- return TE_RESTART;
+ break;
case PTRACE_EVENT_EXEC:
- return TE_STOP_BEFORE_EXECVE;
+ wd->te = TE_STOP_BEFORE_EXECVE;
+ break;
case PTRACE_EVENT_EXIT:
- return TE_STOP_BEFORE_EXIT;
+ wd->te = TE_STOP_BEFORE_EXIT;
+ break;
default:
- return TE_RESTART;
+ wd->te = TE_RESTART;
}
+
+ return wd;
}
static int
@@ -2436,12 +2461,18 @@ trace_syscall(struct tcb *tcp, unsigned int *sig)
/* Returns true iff the main trace loop has to continue. */
static bool
-dispatch_event(enum trace_event ret, int *pstatus, siginfo_t *si)
+dispatch_event(const struct tcb_wait_data *wd)
{
unsigned int restart_op = PTRACE_SYSCALL;
unsigned int restart_sig = 0;
+ enum trace_event te = wd ? wd->te : TE_BREAK;
+ /*
+ * Copy wd->status to a non-const variable to workaround glibc bugs
+ * around union wait fixed by glibc commit glibc-2.24~391
+ */
+ int status = wd ? wd->status : 0;
- switch (ret) {
+ switch (te) {
case TE_BREAK:
return false;
@@ -2469,17 +2500,17 @@ dispatch_event(enum trace_event ret, int *pstatus, siginfo_t *si)
break;
case TE_SIGNAL_DELIVERY_STOP:
- restart_sig = WSTOPSIG(*pstatus);
- print_stopped(current_tcp, si, restart_sig);
+ restart_sig = WSTOPSIG(status);
+ print_stopped(current_tcp, &wd->si, restart_sig);
break;
case TE_SIGNALLED:
- print_signalled(current_tcp, current_tcp->pid, *pstatus);
+ print_signalled(current_tcp, current_tcp->pid, status);
droptcb(current_tcp);
return true;
case TE_GROUP_STOP:
- restart_sig = WSTOPSIG(*pstatus);
+ restart_sig = WSTOPSIG(status);
print_stopped(current_tcp, NULL, restart_sig);
if (use_seize) {
/*
@@ -2494,7 +2525,7 @@ dispatch_event(enum trace_event ret, int *pstatus, siginfo_t *si)
break;
case TE_EXITED:
- print_exited(current_tcp, current_tcp->pid, *pstatus);
+ print_exited(current_tcp, current_tcp->pid, status);
droptcb(current_tcp);
return true;
@@ -2577,13 +2608,15 @@ dispatch_event(enum trace_event ret, int *pstatus, siginfo_t *si)
static bool
restart_delayed_tcb(struct tcb *const tcp)
{
+ const struct tcb_wait_data wd = { .te = TE_RESTART };
+
debug_func_msg("pid %d", tcp->pid);
tcp->flags &= ~TCB_DELAYED;
struct tcb *const prev_tcp = current_tcp;
current_tcp = tcp;
- bool ret = dispatch_event(TE_RESTART, NULL, NULL);
+ bool ret = dispatch_event(&wd);
current_tcp = prev_tcp;
return ret;
@@ -2694,9 +2727,7 @@ main(int argc, char *argv[])
exit_code = !nprocs;
- int status;
- siginfo_t si;
- while (dispatch_event(next_event(&status, &si), &status, &si))
+ while (dispatch_event(next_event()))
;
terminate();
}
--
2.1.4

299
SOURCES/strace-rhbz1610774-0001-tests-check-tracing-of-looping-threads.patch Normal file
View File

@ -0,0 +1,299 @@
From 1e497a53b82bae846618e3b9064d6c4a63024aea Mon Sep 17 00:00:00 2001
From: "Dmitry V. Levin" <ldv@altlinux.org>
Date: Wed, 4 Jul 2018 02:11:27 +0000
Subject: [PATCH 1/3] tests: check tracing of looping threads
* test/many_looping_threads.c: Remove.
* test/.gitignore: Remove many_looping_threads.
* test/Makefile (PROGS): Likewise.
(many_looping_threads): Remove.
* tests/looping_threads.c: New file.
* tests/looping_threads.test: New test.
* tests/.gitignore: Add looping_threads.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(looping_threads_LDADD): New variable.
(MISC_TESTS, XFAIL_TESTS): Add looping_threads.test.
---
test/.gitignore | 1 -
test/Makefile | 5 +-
test/many_looping_threads.c | 49 --------------------
tests/.gitignore | 1 +
tests/Makefile.am | 6 ++-
tests/looping_threads.c | 110 ++++++++++++++++++++++++++++++++++++++++++++
tests/looping_threads.test | 37 +++++++++++++++
7 files changed, 154 insertions(+), 55 deletions(-)
delete mode 100644 test/many_looping_threads.c
create mode 100644 tests/looping_threads.c
create mode 100755 tests/looping_threads.test
Index: strace-4.24/tests/Makefile.am
===================================================================
--- strace-4.24.orig/tests/Makefile.am 2018-09-12 23:52:54.858953939 +0200
+++ strace-4.24/tests/Makefile.am 2018-09-13 00:44:12.638097032 +0200
@@ -127,6 +127,7 @@
ksysent \
list_sigaction_signum \
localtime \
+ looping_threads \
mmsg-silent \
mmsg_name-v \
msg_control-v \
@@ -190,6 +191,7 @@
fstatat64_CPPFLAGS = $(AM_CPPFLAGS) -D_FILE_OFFSET_BITS=64
ftruncate64_CPPFLAGS = $(AM_CPPFLAGS) -D_FILE_OFFSET_BITS=64
localtime_LDADD = $(clock_LIBS) $(LDADD)
+looping_threads_LDADD = -lpthread $(LDADD)
lstat64_CPPFLAGS = $(AM_CPPFLAGS) -D_FILE_OFFSET_BITS=64
mmap64_CPPFLAGS = $(AM_CPPFLAGS) -D_FILE_OFFSET_BITS=64
mmap64_Xabbrev_CPPFLAGS = $(AM_CPPFLAGS) -D_FILE_OFFSET_BITS=64
@@ -321,6 +323,7 @@
interactive_block.test \
ksysent.test \
localtime.test \
+ looping_threads.test \
opipe.test \
options-syntax.test \
pc.test \
@@ -364,7 +367,8 @@
XFAIL_TESTS_mx32 = $(STACKTRACE_TESTS)
XFAIL_TESTS_x86_64 = int_0x80.gen.test
XFAIL_TESTS_x32 = int_0x80.gen.test
-XFAIL_TESTS = $(XFAIL_TESTS_$(MPERS_NAME)) $(XFAIL_TESTS_$(ARCH))
+XFAIL_TESTS = $(XFAIL_TESTS_$(MPERS_NAME)) $(XFAIL_TESTS_$(ARCH)) \
+ looping_threads.test
TEST_LOG_COMPILER = env
AM_TEST_LOG_FLAGS = STRACE_ARCH=$(ARCH) STRACE_NATIVE_ARCH=$(NATIVE_ARCH) \
Index: strace-4.24/tests/looping_threads.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ strace-4.24/tests/looping_threads.c 2018-09-12 23:53:31.739527473 +0200
@@ -0,0 +1,110 @@
+/*
+ * Check tracing of looping threads.
+ *
+ * Copyright (c) 2009-2018 The strace developers.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "tests.h"
+#include <assert.h>
+#include <errno.h>
+#include <pthread.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/wait.h>
+
+static void *
+thread(void *arg)
+{
+ for (;;)
+ getuid();
+ return arg;
+}
+
+int
+main(int ac, const char *av[])
+{
+ assert(ac == 3);
+
+ int timeout = atoi(av[1]);
+ assert(timeout > 0);
+
+ int num_threads = atoi(av[2]);
+ assert(num_threads > 0);
+
+ /* Create a new process group. */
+ if (setpgid(0, 0))
+ perror_msg_and_fail("setpgid");
+
+ /*
+ * When the main process terminates, the process group becomes orphaned.
+ * If any member of the orphaned process group is stopped, then
+ * a SIGHUP signal followed by a SIGCONT signal is sent to each process
+ * in the orphaned process group.
+ * Create a process in a stopped state to activate this behaviour.
+ */
+ pid_t stopped = fork();
+ if (stopped < 0)
+ perror_msg_and_fail("fork");
+ if (!stopped) {
+ raise(SIGSTOP);
+ _exit(0);
+ }
+
+ const sigset_t set = {};
+ const struct sigaction act = { .sa_handler = SIG_DFL };
+ if (sigaction(SIGALRM, &act, NULL))
+ perror_msg_and_fail("sigaction");
+ if (sigprocmask(SIG_SETMASK, &set, NULL))
+ perror_msg_and_fail("sigprocmask");
+ alarm(timeout);
+
+ /*
+ * Create all threads in a subprocess, this guarantees that
+ * their tracer will not be their parent.
+ */
+ pid_t pid = fork();
+ if (pid < 0)
+ perror_msg_and_fail("fork");
+ if (!pid) {
+ for (int i = 0; i < num_threads; i++) {
+ pthread_t t;
+ if ((errno = pthread_create(&t, NULL, thread, NULL)))
+ perror_msg_and_fail("pthread_create #%d", i);
+ }
+
+ /* This terminates all threads. */
+ _exit(0);
+ }
+
+ int s;
+ if (waitpid(pid, &s, 0) != pid)
+ perror_msg_and_fail("waitpid");
+
+ assert(WIFEXITED(s));
+ return WEXITSTATUS(s);
+}
Index: strace-4.24/tests/looping_threads.test
new file mode 0755
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ strace-4.24/tests/looping_threads.test 2018-09-12 23:53:31.740527461 +0200
@@ -0,0 +1,37 @@
+#!/bin/sh
+#
+# Check tracing of looping threads.
+#
+# Copyright (c) 2009-2018 The strace developers.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+# 3. The name of the author may not be used to endorse or promote products
+# derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+. "${srcdir=.}/init.sh"
+
+check_prog nproc
+timeout="$(($TIMEOUT_DURATION/10))"
+nproc="$((64+$timeout+$(nproc)))"
+
+run_prog "../$NAME" "$timeout" "$nproc"
+run_strace -f -qq -enone -esignal=none $args
Index: strace-4.24/tests/Makefile.in
===================================================================
--- strace-4.24.orig/tests/Makefile.in 2018-08-14 02:44:39.000000000 +0200
+++ strace-4.24/tests/Makefile.in 2018-09-13 00:51:18.191618128 +0200
@@ -155,7 +155,7 @@
ioctl_perf-success$(EXEEXT) ioctl_rtc-v$(EXEEXT) \
is_linux_mips_n64$(EXEEXT) ksysent$(EXEEXT) \
list_sigaction_signum$(EXEEXT) localtime$(EXEEXT) \
- mmsg-silent$(EXEEXT) mmsg_name-v$(EXEEXT) \
+ looping_threads$(EXEEXT) mmsg-silent$(EXEEXT) mmsg_name-v$(EXEEXT) \
msg_control-v$(EXEEXT) net-accept-connect$(EXEEXT) \
net-tpacket_stats-success$(EXEEXT) netlink_inet_diag$(EXEEXT) \
netlink_netlink_diag$(EXEEXT) netlink_unix_diag$(EXEEXT) \
@@ -1221,6 +1221,9 @@
lookup_dcookie_OBJECTS = lookup_dcookie.$(OBJEXT)
lookup_dcookie_LDADD = $(LDADD)
lookup_dcookie_DEPENDENCIES = libtests.a
+looping_threads_SOURCES = looping_threads.c
+looping_threads_OBJECTS = looping_threads.$(OBJEXT)
+looping_threads_DEPENDENCIES = $(LDADD)
lseek_SOURCES = lseek.c
lseek_OBJECTS = lseek.$(OBJEXT)
lseek_LDADD = $(LDADD)
@@ -2743,7 +2746,7 @@
kexec_file_load.c kexec_load.c keyctl.c keyctl-Xabbrev.c \
keyctl-Xraw.c keyctl-Xverbose.c kill.c ksysent.c lchown.c \
lchown32.c link.c linkat.c list_sigaction_signum.c llseek.c \
- localtime.c lookup_dcookie.c lseek.c lstat.c lstat64.c \
+ localtime.c lookup_dcookie.c looping_threads.c lseek.c lstat.c lstat64.c \
madvise.c mbind.c membarrier.c memfd_create.c migrate_pages.c \
mincore.c mkdir.c mkdirat.c mknod.c mknodat.c mlock.c mlock2.c \
mlockall.c mmap.c mmap-Xabbrev.c mmap-Xraw.c mmap-Xverbose.c \
@@ -2888,7 +2891,7 @@
kexec_file_load.c kexec_load.c keyctl.c keyctl-Xabbrev.c \
keyctl-Xraw.c keyctl-Xverbose.c kill.c ksysent.c lchown.c \
lchown32.c link.c linkat.c list_sigaction_signum.c llseek.c \
- localtime.c lookup_dcookie.c lseek.c lstat.c lstat64.c \
+ localtime.c lookup_dcookie.c looping_threads.c lseek.c lstat.c lstat64.c \
madvise.c mbind.c membarrier.c memfd_create.c migrate_pages.c \
mincore.c mkdir.c mkdirat.c mknod.c mknodat.c mlock.c mlock2.c \
mlockall.c mmap.c mmap-Xabbrev.c mmap-Xraw.c mmap-Xverbose.c \
@@ -3911,6 +3914,7 @@
fstatat64_CPPFLAGS = $(AM_CPPFLAGS) -D_FILE_OFFSET_BITS=64
ftruncate64_CPPFLAGS = $(AM_CPPFLAGS) -D_FILE_OFFSET_BITS=64
localtime_LDADD = $(clock_LIBS) $(LDADD)
+looping_threads_LDADD = -lpthread $(LDADD)
lstat64_CPPFLAGS = $(AM_CPPFLAGS) -D_FILE_OFFSET_BITS=64
mmap64_CPPFLAGS = $(AM_CPPFLAGS) -D_FILE_OFFSET_BITS=64
mmap64_Xabbrev_CPPFLAGS = $(AM_CPPFLAGS) -D_FILE_OFFSET_BITS=64
@@ -4229,6 +4233,7 @@
interactive_block.test \
ksysent.test \
localtime.test \
+ looping_threads.test \
opipe.test \
options-syntax.test \
pc.test \
@@ -5226,6 +5231,10 @@
@rm -f lookup_dcookie$(EXEEXT)
$(AM_V_CCLD)$(LINK) $(lookup_dcookie_OBJECTS) $(lookup_dcookie_LDADD) $(LIBS)
+looping_threads$(EXEEXT): $(looping_threads_OBJECTS) $(looping_threads_DEPENDENCIES) $(EXTRA_looping_threads_DEPENDENCIES)
+ @rm -f looping_threads$(EXEEXT)
+ $(AM_V_CCLD)$(LINK) $(looping_threads_OBJECTS) $(looping_threads_LDADD) $(LIBS)
+
lseek$(EXEEXT): $(lseek_OBJECTS) $(lseek_DEPENDENCIES) $(EXTRA_lseek_DEPENDENCIES)
@rm -f lseek$(EXEEXT)
$(AM_V_CCLD)$(LINK) $(lseek_OBJECTS) $(lseek_LDADD) $(LIBS)
@@ -6890,6 +6899,7 @@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/llseek.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/localtime.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/lookup_dcookie.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/looping_threads.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/lseek.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/lstat.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/lstat64-lstat64.Po@am__quote@

213
SOURCES/strace-rhbz1610774-0002-Add-a-generic-list-implementation.patch Normal file
View File

@ -0,0 +1,213 @@
From a5855e84f17181167754caa26280161cd786a386 Mon Sep 17 00:00:00 2001
From: Eugene Syromyatnikov <evgsyr@gmail.com>
Date: Sun, 11 Sep 2016 12:11:45 +0300
Subject: [PATCH 2/3] Add a generic list implementation
Similar to one used in the Linux kernel.
* macros.h (cast_ptr, containerof): New macros.
* list.h: New file.
* Makefile.am (strace_SOURCES): Add it.
---
Makefile.am | 1 +
list.h | 137 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
macros.h | 9 ++++
3 files changed, 147 insertions(+)
create mode 100644 list.h
Index: strace-4.24/Makefile.am
===================================================================
--- strace-4.24.orig/Makefile.am 2018-09-13 00:07:30.798555060 +0200
+++ strace-4.24/Makefile.am 2018-09-13 00:42:10.058675213 +0200
@@ -185,6 +185,7 @@
linux/asm_stat.h \
linux/x32/asm_stat.h \
linux/x86_64/asm_stat.h \
+ list.h \
listen.c \
lookup_dcookie.c \
loop.c \
Index: strace-4.24/list.h
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ strace-4.24/list.h 2018-09-13 00:42:10.059675201 +0200
@@ -0,0 +1,137 @@
+/*
+ * Some simple implementation of a list similar to one used in the kernel.
+ *
+ * Copyright (c) 2016-2018 The strace developers.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef STRACE_LIST_H
+#define STRACE_LIST_H
+
+#include "macros.h"
+
+struct list_item {
+ struct list_item *prev;
+ struct list_item *next;
+};
+
+#define EMPTY_LIST(l_) struct list_item l_ = { &l_, &l_ }
+
+static inline void
+list_init(struct list_item *l)
+{
+ l->prev = l;
+ l->next = l;
+}
+
+static inline bool
+list_is_empty(struct list_item *l)
+{
+ return (l->next == l) && (l->prev == l);
+}
+
+#define list_elem(var, type, field) containerof((var), type, field)
+
+#define list_head(head, type, field) \
+ (list_is_empty(head) ? NULL : list_elem((head)->next, type, field))
+#define list_tail(head, type, field) \
+ (list_is_empty(head) ? NULL : list_elem((head)->prev, type, field))
+
+#define list_next(val, field) \
+ list_elem((val)->field.next, typeof(*(val)), field)
+#define list_prev(val, field) \
+ list_elem((val)->field.prev, typeof(*(val)), field)
+
+static inline void
+list_insert(struct list_item *head, struct list_item *item)
+{
+ item->next = head->next;
+ item->prev = head;
+ head->next->prev = item;
+ head->next = item;
+}
+
+static inline void
+list_append(struct list_item *head, struct list_item *item)
+{
+ item->next = head;
+ item->prev = head->prev;
+ head->prev->next = item;
+ head->prev = item;
+}
+
+static inline void
+list_remove(struct list_item *item)
+{
+ if (!item->next || !item->prev)
+ return;
+
+ item->prev->next = item->next;
+ item->next->prev = item->prev;
+ item->next = item->prev = NULL;
+}
+
+static inline struct list_item *
+list_remove_tail(struct list_item *head)
+{
+ struct list_item *t = list_is_empty(head) ? NULL : head->prev;
+
+ if (t)
+ list_remove(t);
+
+ return t;
+}
+
+static inline struct list_item *
+list_remove_head(struct list_item *head)
+{
+ struct list_item *h = list_is_empty(head) ? NULL : head->next;
+
+ if (h)
+ list_remove(h);
+
+ return h;
+}
+
+static inline void
+list_replace(struct list_item *old, struct list_item *new)
+{
+ new->next = old->next;
+ new->prev = old->prev;
+ old->prev->next = new;
+ old->next->prev = new;
+ old->next = old->prev = NULL;
+}
+
+#define list_foreach(var_, head_, field_) \
+ for (var_ = list_elem((head_)->next, typeof(*var_), field_); \
+ &(var_->field_) != (head_); var_ = list_next(var_, field_))
+
+#define list_foreach_safe(var_, head_, field_, _tmp) \
+ for (var_ = list_elem((head_)->next, typeof(*var_), field_), \
+ _tmp = list_elem((var_)->field_.next, typeof(*var_), field_); \
+ &var_->field_ != head_; var_ = _tmp, _tmp = list_next(_tmp, field_))
+
+#endif /* !STRACE_LIST_H */
Index: strace-4.24/macros.h
===================================================================
--- strace-4.24.orig/macros.h 2018-09-13 00:07:30.798555060 +0200
+++ strace-4.24/macros.h 2018-09-13 00:42:10.059675201 +0200
@@ -53,6 +53,15 @@
(offsetof(type_, member_) + sizeof(((type_ *)0)->member_))
#endif
+#ifndef cast_ptr
+# define cast_ptr(type, var) ((type) (uintptr_t) (const volatile void *) (var))
+#endif
+
+#ifndef containerof
+# define containerof(x, s, m) \
+ cast_ptr(s *, (const volatile char *) (x) - offsetof(s, m))
+#endif
+
static inline bool
is_filled(const char *ptr, char fill, size_t size)
{
Index: strace-4.24/Makefile.in
===================================================================
--- strace-4.24.orig/Makefile.in 2018-08-14 02:44:37.000000000 +0200
+++ strace-4.24/Makefile.in 2018-09-13 00:45:21.266213460 +0200
@@ -340,7 +340,7 @@
ipc_sem.c ipc_shm.c ipc_shmctl.c kcmp.c kernel_types.h kexec.c \
keyctl.c keyctl_kdf_params.h kvm.c largefile_wrappers.h ldt.c \
link.c linux/asm_stat.h linux/x32/asm_stat.h \
- linux/x86_64/asm_stat.h listen.c lookup_dcookie.c loop.c \
+ linux/x86_64/asm_stat.h list.h listen.c lookup_dcookie.c loop.c \
lseek.c macros.h mem.c membarrier.c memfd_create.c mknod.c \
mmap_notify.c mmap_notify.h mmsghdr.c mount.c mpers_type.h \
mq.c msghdr.c msghdr.h mtd.c native_defs.h negated_errno.h \
@@ -1357,7 +1357,7 @@
ipc_shmctl.c kcmp.c kernel_types.h kexec.c keyctl.c \
keyctl_kdf_params.h kvm.c largefile_wrappers.h ldt.c link.c \
linux/asm_stat.h linux/x32/asm_stat.h linux/x86_64/asm_stat.h \
- listen.c lookup_dcookie.c loop.c lseek.c macros.h mem.c \
+ list.h listen.c lookup_dcookie.c loop.c lseek.c macros.h mem.c \
membarrier.c memfd_create.c mknod.c mmap_notify.c \
mmap_notify.h mmsghdr.c mount.c mpers_type.h mq.c msghdr.c \
msghdr.h mtd.c native_defs.h negated_errno.h net.c netlink.c \

491
SOURCES/strace-rhbz1610774-0003-Implement-queueing-of-threads-before-dispatching-the.patch Normal file
View File

@ -0,0 +1,491 @@
From c527f21b7528e14b13d2be13acf5c42359e94021 Mon Sep 17 00:00:00 2001
From: Eugene Syromyatnikov <evgsyr@gmail.com>
Date: Wed, 8 Aug 2018 21:41:39 +0200
Subject: [PATCH 3/3] Implement queueing of threads before dispatching them
It is possible that some tracees call a lot of cheap syscalls too fast,
and that can lead to starvation to the point some tracees are not served
for indefinite amount of time. In order to solve that unfairness, try
to collect all the pending tracees first along with the relevant
information and only then dispatch the events.
* defs.h: Include "list.h".
(struct tcb): Add wait_data_idx and wait_list fields.
* strace.c (struct tcb_wait_data): Add "msg" field.
(tcb_wait_tab): New static variable.
(expand_tcbtab): Resize tcb_wait_tab along with tcbtab, provide
an additional slot for extra event.
(droptcb): Remove tcp from wait_list.
(maybe_switch_tcbs): Get old pid from
tcb_wait_tab[tcp->wait_data_idx].msg.
(next_event): Add pending_tcps, extra_tcp, wait_nohang, elem, and
wait_tab_pos variables; check for elements in pending_tcps and skip
waiting if the list is not empty; check for extra_tcp and skip waiting
along with swapping wait_data_idx with wait_extra_data_idx;
after the initial wait, call wait4() in loop with WNOHANG flag set;
fetch siginfo on signal and eventmsg on PTRACE_EVENT_EXEC;
return the first tcp in pending_tcps list.
* tests/Makefile.am (XFAIL_TEST): Remove looping_threads.test.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=478419
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=526740
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=851457
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1609318
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1610774
Co-Authored-by: Dmitry V. Levin <ldv@altlinux.org>
Co-Authored-by: Denys Vlasenko <dvlasenk@redhat.com>
Co-Authored-by: Andreas Schwab <aschwab@redhat.com>
Co-Authored-by: Jeff Law <law@redhat.com>
Co-Authored-by: DJ Delorie <dj@redhat.com>
---
defs.h | 10 ++
strace.c | 321 ++++++++++++++++++++++++++++++++++--------------------
tests/Makefile.am | 3 +-
3 files changed, 212 insertions(+), 122 deletions(-)
Index: strace-4.24/defs.h
===================================================================
--- strace-4.24.orig/defs.h 2018-09-12 23:52:48.978021943 +0200
+++ strace-4.24/defs.h 2018-09-12 23:53:35.764480931 +0200
@@ -57,6 +57,7 @@
#include "error_prints.h"
#include "gcc_compat.h"
#include "kernel_types.h"
+#include "list.h"
#include "macros.h"
#include "mpers_type.h"
#include "string_to_uint.h"
@@ -236,6 +237,15 @@
struct mmap_cache_t *mmap_cache;
+ /*
+ * Data that is stored during process wait traversal.
+ * We use indices as the actual data is stored in an array
+ * that is realloc'ed in runtime.
+ */
+ size_t wait_data_idx;
+ struct list_item wait_list;
+
+
#ifdef HAVE_LINUX_KVM_H
struct vcpu_info *vcpu_info_list;
#endif
Index: strace-4.24/strace.c
===================================================================
--- strace-4.24.orig/strace.c 2018-09-12 23:53:30.371543291 +0200
+++ strace-4.24/strace.c 2018-09-12 23:53:35.765480919 +0200
@@ -161,10 +161,17 @@
struct tcb_wait_data {
enum trace_event te; /**< Event passed to dispatch_event() */
int status; /**< status, returned by wait4() */
+ unsigned long msg; /**< Value returned by PTRACE_GETEVENTMSG */
siginfo_t si; /**< siginfo, returned by PTRACE_GETSIGINFO */
};
static struct tcb **tcbtab;
+/*
+ * Since the queueing of tracees stops as soon as wait4() returns EAGAIN,
+ * or at least two events for a single tracee, tab_wait_tab size shouldn't
+ * exceed tcbtabsize + 1.
+ */
+static struct tcb_wait_data *tcb_wait_tab;
static unsigned int nprocs;
static size_t tcbtabsize;
@@ -750,6 +757,9 @@
for (tcb_ptr = tcbtab + old_tcbtabsize;
tcb_ptr < tcbtab + tcbtabsize; tcb_ptr++, newtcbs++)
*tcb_ptr = newtcbs;
+
+ tcb_wait_tab = xreallocarray(tcb_wait_tab, sizeof(*tcb_wait_tab),
+ tcbtabsize + 1);
}
static struct tcb *
@@ -853,6 +863,8 @@
if (printing_tcp == tcp)
printing_tcp = NULL;
+ list_remove(&tcp->wait_list);
+
memset(tcp, 0, sizeof(*tcp));
}
@@ -2071,10 +2083,8 @@
{
FILE *fp;
struct tcb *execve_thread;
- long old_pid = 0;
+ long old_pid = tcb_wait_tab[tcp->wait_data_idx].msg;
- if (ptrace(PTRACE_GETEVENTMSG, pid, NULL, &old_pid) < 0)
- return tcp;
/* Avoid truncation in pid2tcb() param passing */
if (old_pid <= 0 || old_pid == pid)
return tcp;
@@ -2235,17 +2245,27 @@
static const struct tcb_wait_data *
next_event(void)
{
- static struct tcb_wait_data wait_data;
-
- int pid;
- int status;
- struct tcb *tcp;
- struct tcb_wait_data *wd = &wait_data;
- struct rusage ru;
-
if (interrupted)
return NULL;
+ struct tcb *tcp = NULL;
+ struct list_item *elem;
+
+ static EMPTY_LIST(pending_tcps);
+ if (!list_is_empty(&pending_tcps))
+ goto next_event_get_tcp;
+
+ static struct tcb *extra_tcp;
+ static size_t wait_extra_data_idx;
+ if (extra_tcp) {
+ tcp = extra_tcp;
+ extra_tcp = NULL;
+ tcp->wait_data_idx = wait_extra_data_idx;
+
+ debug_msg("dequeued extra event for pid %u", tcp->pid);
+ goto next_event_exit;
+ }
+
/*
* Used to exit simply when nprocs hits zero, but in this testcase:
* int main(void) { _exit(!!fork()); }
@@ -2287,8 +2307,10 @@
* then the system call will be interrupted and
* the expiration will be handled by the signal handler.
*/
- pid = wait4(-1, &status, __WALL, (cflag ? &ru : NULL));
- const int wait_errno = errno;
+ int status;
+ struct rusage ru;
+ int pid = wait4(-1, &status, __WALL, (cflag ? &ru : NULL));
+ int wait_errno = errno;
/*
* The window of opportunity to handle expirations
@@ -2304,135 +2326,194 @@
return NULL;
}
- if (pid < 0) {
- if (wait_errno == EINTR) {
- wd->te = TE_NEXT;
- return wd;
+ size_t wait_tab_pos = 0;
+ bool wait_nohang = false;
+
+ for (;;) {
+ struct tcb_wait_data *wd;
+
+ if (pid < 0) {
+ if (wait_errno == EINTR)
+ break;
+ if (wait_nohang)
+ break;
+ if (nprocs == 0 && wait_errno == ECHILD)
+ return NULL;
+ /*
+ * If nprocs > 0, ECHILD is not expected,
+ * treat it as any other error here:
+ */
+ errno = wait_errno;
+ perror_msg_and_die("wait4(__WALL)");
}
- if (nprocs == 0 && wait_errno == ECHILD)
- return NULL;
- /*
- * If nprocs > 0, ECHILD is not expected,
- * treat it as any other error here:
- */
- errno = wait_errno;
- perror_msg_and_die("wait4(__WALL)");
- }
- wd->status = status;
+ if (!pid)
+ break;
- if (pid == popen_pid) {
- if (!WIFSTOPPED(status))
- popen_pid = 0;
- wd->te = TE_NEXT;
- return wd;
- }
+ if (pid == popen_pid) {
+ if (!WIFSTOPPED(status))
+ popen_pid = 0;
+ break;
+ }
- if (debug_flag)
- print_debug_info(pid, status);
+ if (debug_flag)
+ print_debug_info(pid, status);
- /* Look up 'pid' in our table. */
- tcp = pid2tcb(pid);
+ /* Look up 'pid' in our table. */
+ tcp = pid2tcb(pid);
- if (!tcp) {
- tcp = maybe_allocate_tcb(pid, status);
if (!tcp) {
- wd->te = TE_NEXT;
- return wd;
+ tcp = maybe_allocate_tcb(pid, status);
+ if (!tcp)
+ break;
}
- }
- clear_regs(tcp);
+ if (cflag) {
+ struct timespec stime = {
+ .tv_sec = ru.ru_stime.tv_sec,
+ .tv_nsec = ru.ru_stime.tv_usec * 1000
+ };
+ ts_sub(&tcp->dtime, &stime, &tcp->stime);
+ tcp->stime = stime;
+ }
+
+ if (wait_tab_pos > tcbtabsize)
+ error_func_msg_and_die("Wait data storage overflow "
+ "(wait_tab_pos %zu, nprocs %u, "
+ "tcbtabsize %zu)", wait_tab_pos,
+ nprocs, tcbtabsize);
+
+ wd = tcb_wait_tab + wait_tab_pos;
+ memset(wd, 0, sizeof(*wd));
+
+ if (WIFSIGNALED(status)) {
+ wd->te = TE_SIGNALLED;
+ } else if (WIFEXITED(status)) {
+ wd->te = TE_EXITED;
+ } else {
+ /*
+ * As WCONTINUED flag has not been specified to wait4,
+ * it cannot be WIFCONTINUED(status), so the only case
+ * that remains is WIFSTOPPED(status).
+ */
- /* Set current output file */
- set_current_tcp(tcp);
+ const unsigned int sig = WSTOPSIG(status);
+ const unsigned int event = (unsigned int) status >> 16;
- if (cflag) {
- struct timespec stime = {
- .tv_sec = ru.ru_stime.tv_sec,
- .tv_nsec = ru.ru_stime.tv_usec * 1000
- };
- ts_sub(&tcp->dtime, &stime, &tcp->stime);
- tcp->stime = stime;
- }
+ switch (event) {
+ case 0:
+ /*
+ * Is this post-attach SIGSTOP?
+ * Interestingly, the process may stop
+ * with STOPSIG equal to some other signal
+ * than SIGSTOP if we happened to attach
+ * just before the process takes a signal.
+ */
+ if (sig == SIGSTOP &&
+ (tcp->flags & TCB_IGNORE_ONE_SIGSTOP)) {
+ debug_func_msg("ignored SIGSTOP on "
+ "pid %d", tcp->pid);
+ tcp->flags &= ~TCB_IGNORE_ONE_SIGSTOP;
+ wd->te = TE_RESTART;
+ } else if (sig == syscall_trap_sig) {
+ wd->te = TE_SYSCALL_STOP;
+ } else {
+ /*
+ * True if tracee is stopped by signal
+ * (as opposed to "tracee received
+ * signal").
+ * TODO: shouldn't we check for
+ * errno == EINVAL too?
+ * We can get ESRCH instead, you know...
+ */
+ bool stopped = ptrace(PTRACE_GETSIGINFO,
+ pid, 0, &wd->si) < 0;
- if (WIFSIGNALED(status)) {
- wd->te = TE_SIGNALLED;
- return wd;
- }
+ wd->te = stopped ? TE_GROUP_STOP
+ : TE_SIGNAL_DELIVERY_STOP;
+ }
+ break;
+ case PTRACE_EVENT_STOP:
+ /*
+ * PTRACE_INTERRUPT-stop or group-stop.
+ * PTRACE_INTERRUPT-stop has sig == SIGTRAP here.
+ */
+ switch (sig) {
+ case SIGSTOP:
+ case SIGTSTP:
+ case SIGTTIN:
+ case SIGTTOU:
+ wd->te = TE_GROUP_STOP;
+ break;
+ default:
+ wd->te = TE_RESTART;
+ }
+ break;
+ case PTRACE_EVENT_EXEC:
+ /*
+ * TODO: shouldn't we check for
+ * errno == EINVAL here, too?
+ * We can get ESRCH instead, you know...
+ */
+ if (ptrace(PTRACE_GETEVENTMSG, pid, NULL,
+ &wd->msg) < 0)
+ wd->msg = 0;
- if (WIFEXITED(status)) {
- wd->te = TE_EXITED;
- return wd;
+ wd->te = TE_STOP_BEFORE_EXECVE;
+ break;
+ case PTRACE_EVENT_EXIT:
+ wd->te = TE_STOP_BEFORE_EXIT;
+ break;
+ default:
+ wd->te = TE_RESTART;
+ }
+ }
+
+ if (tcp->wait_list.next) {
+ wait_extra_data_idx = wait_tab_pos;
+ extra_tcp = tcp;
+ debug_func_msg("queued extra pid %d", tcp->pid);
+ } else {
+ tcp->wait_data_idx = wait_tab_pos;
+ list_append(&pending_tcps, &tcp->wait_list);
+ debug_func_msg("queued pid %d", tcp->pid);
+ }
+
+ wd->status = status;
+ wait_tab_pos++;
+
+ if (extra_tcp)
+ break;
+
+ pid = wait4(-1, &status, __WALL | WNOHANG, (cflag ? &ru : NULL));
+ wait_errno = errno;
+ wait_nohang = true;
}
- /*
- * As WCONTINUED flag has not been specified to wait4,
- * it cannot be WIFCONTINUED(status), so the only case
- * that remains is WIFSTOPPED(status).
- */
+next_event_get_tcp:
+ elem = list_remove_head(&pending_tcps);
+
+ if (!elem) {
+ memset(tcb_wait_tab, 0, sizeof(*tcb_wait_tab));
+ tcb_wait_tab->te = TE_NEXT;
+
+ return tcb_wait_tab;
+ } else {
+ tcp = list_elem(elem, struct tcb, wait_list);
+ debug_func_msg("dequeued pid %d", tcp->pid);
+ }
+next_event_exit:
/* Is this the very first time we see this tracee stopped? */
if (tcp->flags & TCB_STARTUP)
startup_tcb(tcp);
- const unsigned int sig = WSTOPSIG(status);
- const unsigned int event = (unsigned int) status >> 16;
+ clear_regs(tcp);
- switch (event) {
- case 0:
- /*
- * Is this post-attach SIGSTOP?
- * Interestingly, the process may stop
- * with STOPSIG equal to some other signal
- * than SIGSTOP if we happened to attach
- * just before the process takes a signal.
- */
- if (sig == SIGSTOP && (tcp->flags & TCB_IGNORE_ONE_SIGSTOP)) {
- debug_func_msg("ignored SIGSTOP on pid %d", tcp->pid);
- tcp->flags &= ~TCB_IGNORE_ONE_SIGSTOP;
- wd->te = TE_RESTART;
- } else if (sig == syscall_trap_sig) {
- wd->te = TE_SYSCALL_STOP;
- } else {
- memset(&wd->si, 0, sizeof(wd->si));
- /*
- * True if tracee is stopped by signal
- * (as opposed to "tracee received signal").
- * TODO: shouldn't we check for errno == EINVAL too?
- * We can get ESRCH instead, you know...
- */
- bool stopped = ptrace(PTRACE_GETSIGINFO, pid, 0, &wd->si) < 0;
- wd->te = stopped ? TE_GROUP_STOP : TE_SIGNAL_DELIVERY_STOP;
- }
- break;
- case PTRACE_EVENT_STOP:
- /*
- * PTRACE_INTERRUPT-stop or group-stop.
- * PTRACE_INTERRUPT-stop has sig == SIGTRAP here.
- */
- switch (sig) {
- case SIGSTOP:
- case SIGTSTP:
- case SIGTTIN:
- case SIGTTOU:
- wd->te = TE_GROUP_STOP;
- break;
- default:
- wd->te = TE_RESTART;
- }
- break;
- case PTRACE_EVENT_EXEC:
- wd->te = TE_STOP_BEFORE_EXECVE;
- break;
- case PTRACE_EVENT_EXIT:
- wd->te = TE_STOP_BEFORE_EXIT;
- break;
- default:
- wd->te = TE_RESTART;
- }
+ /* Set current output file */
+ set_current_tcp(tcp);
- return wd;
+ return tcb_wait_tab + tcp->wait_data_idx;
}
static int
Index: strace-4.24/tests/Makefile.am
===================================================================
--- strace-4.24.orig/tests/Makefile.am 2018-09-12 23:53:31.739527473 +0200
+++ strace-4.24/tests/Makefile.am 2018-09-12 23:53:35.765480919 +0200
@@ -367,8 +367,7 @@
XFAIL_TESTS_mx32 = $(STACKTRACE_TESTS)
XFAIL_TESTS_x86_64 = int_0x80.gen.test
XFAIL_TESTS_x32 = int_0x80.gen.test
-XFAIL_TESTS = $(XFAIL_TESTS_$(MPERS_NAME)) $(XFAIL_TESTS_$(ARCH)) \
- looping_threads.test
+XFAIL_TESTS = $(XFAIL_TESTS_$(MPERS_NAME)) $(XFAIL_TESTS_$(ARCH))
TEST_LOG_COMPILER = env
AM_TEST_LOG_FLAGS = STRACE_ARCH=$(ARCH) STRACE_NATIVE_ARCH=$(NATIVE_ARCH) \

636
SPECS/strace.spec Normal file
View File

@ -0,0 +1,636 @@
Summary: Tracks and displays system calls associated with a running process
Name: strace
Version: 4.24
Release: 3%{?dist}
License: BSD
Group: Development/Debuggers
URL: https://strace.io
Source: https://strace.io/files/%{version}/strace-%{version}.tar.xz
BuildRequires: gcc gzip
Patch1: strace-rhbz1610774-0000-strace.c-introduce-struct-tcb_wait_data.patch
Patch2: strace-rhbz1610774-0001-tests-check-tracing-of-looping-threads.patch
Patch3: strace-rhbz1610774-0002-Add-a-generic-list-implementation.patch
Patch4: strace-rhbz1610774-0003-Implement-queueing-of-threads-before-dispatching-the.patch
# We no longer need to build a separate strace32 binary, but we don't want
# to break existing strace32 users' workflows.
%define strace32_arches ppc64 s390x
%ifarch %{strace32_arches}
%define _isa_compat %{?__isa_name:(%{__isa_name}-32)}%{!?__isa:%{nil}}
%define evr %{?epoch:%{epoch}:}%{version}-%{release}
Provides: strace32 = %{evr}
Obsoletes: strace32 < %{evr} strace32%{_isa_compat} < %{evr}
%endif
# Install Bluetooth headers for AF_BLUETOOTH sockets decoding.
%if 0%{?fedora} >= 18 || 0%{?centos} >= 8 || 0%{?rhel} >= 8 || 0%{?suse_version} >= 1200
BuildRequires: pkgconfig(bluez)
%endif
# Install elfutils-devel or libdw-devel to enable strace -k option.
# Install binutils-devel to enable symbol demangling.
%if 0%{?fedora} >= 20 || 0%{?centos} >= 6 || 0%{?rhel} >= 6
%define buildrequires_stacktrace BuildRequires: elfutils-devel binutils-devel
%endif
%if 0%{?suse_version} >= 1100
%define buildrequires_stacktrace BuildRequires: libdw-devel binutils-devel
%endif
%{?buildrequires_stacktrace}
# OBS compatibility
%{?!buildroot:BuildRoot: %_tmppath/buildroot-%name-%version-%release}
%define maybe_use_defattr %{?suse_version:%%defattr(-,root,root)}
%description
The strace program intercepts and records the system calls called and
received by a running process. Strace can print a record of each
system call, its arguments and its return value. Strace is useful for
diagnosing problems and debugging, as well as for instructional
purposes.
Install strace if you need a tool to track the system calls made and
received by a process.
%prep
%setup -q
%patch1 -p1
%patch2 -p1
%patch3 -p1
%patch4 -p1
chmod a+x tests/*.test
echo -n %version-%release > .tarball-version
echo -n 2018 > .year
echo -n 2018-08-14 > .strace.1.in.date
%build
echo 'BEGIN OF BUILD ENVIRONMENT INFORMATION'
uname -a |head -1
libc="$(ldd /bin/sh |sed -n 's|^[^/]*\(/[^ ]*/libc\.so[^ ]*\).*|\1|p' |head -1)"
$libc |head -1
file -L /bin/sh
gcc --version |head -1
ld --version |head -1
kver="$(printf '%%s\n%%s\n' '#include <linux/version.h>' 'LINUX_VERSION_CODE' | gcc -E -P -)"
printf 'kernel-headers %%s.%%s.%%s\n' $(($kver/65536)) $(($kver/256%%256)) $(($kver%%256))
echo 'END OF BUILD ENVIRONMENT INFORMATION'
CFLAGS_FOR_BUILD="$RPM_OPT_FLAGS"; export CFLAGS_FOR_BUILD
%configure --enable-mpers=check
make %{?_smp_mflags}
%install
make DESTDIR=%{buildroot} install
%ifarch %{strace32_arches}
ln -s ./strace %{buildroot}%{_bindir}/strace32
%endif
# remove unpackaged files from the buildroot
rm -f %{buildroot}%{_bindir}/strace-graph
# some say uncompressed changelog files are too big
for f in ChangeLog ChangeLog-CVS; do
gzip -9n < "$f" > "$f".gz &
done
wait
%check
%{buildroot}%{_bindir}/strace -V
make %{?_smp_mflags} -k check VERBOSE=1 TIMEOUT_DURATION=1800
echo 'BEGIN OF TEST SUITE INFORMATION'
tail -n 99999 -- tests*/test-suite.log tests*/ksysent.log
find tests* -type f -name '*.log' -print0 |
xargs -r0 grep -H '^KERNEL BUG:' -- ||:
echo 'END OF TEST SUITE INFORMATION'
%files
%maybe_use_defattr
%doc CREDITS ChangeLog.gz ChangeLog-CVS.gz COPYING NEWS README
%{_bindir}/strace
%ifarch %{strace32_arches}
%{_bindir}/strace32
%endif
%{_bindir}/strace-log-merge
%{_mandir}/man1/*
%changelog
* Mon Dec 17 2018 Eugene Syromiatnikov <esyr@redhat.com> - 4.24-3
- Add current version of the thread handling unfairness fix.
* Mon Sep 03 2018 Eugene Syromiatnikov <esyr@redhat.com> - 4.24-2
- Add transition for strace32 package pn those architectures that
provided it in RHEL 7 (ppc64 and s390x).
* Tue Aug 14 2018 Eugene Syromiatnikov <esyr@redhat.com> - 4.24-1
- Rebase to v4.24.
* Sun Aug 05 2018 Eugene Syromiatnikov <esyr@redhat.com> - 4.23-4
- Fix tests build with fresh glibc that now provides struct statx in sys/stat.h.
- Resolves #1611749.
* Thu Jul 19 2018 Eugene Syromiatnikov <esyr@redhat.com> - 4.23-3
- Wire up io_pgetevents and rseq on hppa, microblaze, mips, powerpc, and s390.
* Sat Jun 16 2018 Eugene Syromiatnikov <esyr@redhat.com> - 4.23-2
- Increase test timeout duration.
* Thu Jun 14 2018 Dmitry V. Levin <ldv@altlinux.org> - 4.23-1
- v4.22 -> v4.23.
- Enabled libdw backend for -k option (#1568647).
* Thu Apr 05 2018 Dmitry V. Levin <ldv@altlinux.org> - 4.22-1
- v4.21 -> v4.22.
* Tue Feb 13 2018 Dmitry V. Levin <ldv@altlinux.org> - 4.21-1
- v4.20 -> v4.21.
* Mon Nov 13 2017 Dmitry V. Levin <ldv@altlinux.org> - 4.20-1
- v4.19 -> v4.20.
* Tue Sep 05 2017 Dmitry V. Levin <ldv@altlinux.org> - 4.19-1
- v4.18 -> v4.19.
* Wed Jul 05 2017 Dmitry V. Levin <ldv@altlinux.org> - 4.18-1
- v4.17 -> v4.18.
* Wed May 24 2017 Dmitry V. Levin <ldv@altlinux.org> - 4.17-1
- v4.16 -> v4.17.
* Tue Feb 14 2017 Dmitry V. Levin <ldv@altlinux.org> - 4.16-1
- v4.15 -> v4.16.
* Wed Dec 14 2016 Dmitry V. Levin <ldv@altlinux.org> - 4.15-1
- v4.14-100-g622af42 -> v4.15.
* Wed Nov 16 2016 Dmitry V. Levin <ldv@altlinux.org> - 4.14.0.100.622a-1
- v4.14 -> v4.14-100-g622af42:
+ implemented syscall fault injection.
* Tue Oct 04 2016 Dmitry V. Levin <ldv@altlinux.org> - 4.14-1
- v4.13 -> v4.14:
+ added printing of the mode argument of open and openat syscalls
when O_TMPFILE flag is set (#1377846).
* Tue Jul 26 2016 Dmitry V. Levin <ldv@altlinux.org> - 4.13-1
- v4.12 -> v4.13.
* Tue May 31 2016 Dmitry V. Levin <ldv@altlinux.org> - 4.12-1
- v4.11-163-g972018f -> v4.12.
* Fri Feb 05 2016 Fedora Release Engineering <releng@fedoraproject.org> - 4.11.0.163.9720-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild
* Fri Jan 15 2016 Dmitry V. Levin <ldv@altlinux.org> - 4.11.0.163.9720-1
- New upstream snapshot v4.11-163-g972018f:
+ fixed decoding of syscalls unknown to the kernel on s390/s390x (#1298294).
* Wed Dec 23 2015 Dmitry V. Levin <ldv@altlinux.org> - 4.11-2
- Enabled experimental -k option on x86_64 (#1170296).
* Mon Dec 21 2015 Dmitry V. Levin <ldv@altlinux.org> - 4.11-1
- New upstream release:
+ print nanoseconds along with seconds in stat family syscalls (#1251176).
* Fri Jun 19 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 4.10-3
- Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild
* Mon May 11 2015 Marcin Juszkiewicz <mjuszkiewicz@redhat.com> - 4.10-2
- Backport set of upstream patches to get it buildable on AArch64
* Fri Mar 06 2015 Dmitry V. Levin <ldv@altlinux.org> - 4.10-1
- New upstream release:
+ enhanced ioctl decoding (#902788).
* Mon Nov 03 2014 Lubomir Rintel <lkundrak@v3.sk> - 4.9-3
- Regenerate ioctl entries with proper kernel headers
* Mon Aug 18 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 4.9-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_22_Mass_Rebuild
* Fri Aug 15 2014 Dmitry V. Levin <ldv@altlinux.org> - 4.9-1
- New upstream release:
+ fixed build when <sys/ptrace.h> and <linux/ptrace.h> conflict (#993384);
+ updated CLOCK_* constants (#1088455);
+ enabled ppc64le support (#1122323);
+ fixed attach to a process on ppc64le (#1129569).
* Fri Jul 25 2014 Dan Horák <dan[at]danny.cz> - 4.8-5
- update for ppc64
* Sun Jun 08 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 4.8-4
- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
* Fri Dec 6 2013 Peter Robinson <pbrobinson@fedoraproject.org> 4.8-3
- Fix FTBFS
* Sun Aug 04 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 4.8-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_20_Mass_Rebuild
* Mon Jun 03 2013 Dmitry V. Levin <ldv@altlinux.org> - 4.8-1
- New upstream release:
+ fixed ERESTARTNOINTR leaking to userspace on ancient kernels (#659382);
+ fixed decoding of *xattr syscalls (#885233);
+ fixed handling of files with 64-bit inode numbers by 32-bit strace (#912790);
+ added aarch64 support (#969858).
* Fri Feb 15 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 4.7-3
- Rebuilt for https://fedoraproject.org/wiki/Fedora_19_Mass_Rebuild
* Sat Jul 21 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 4.7-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_18_Mass_Rebuild
* Wed May 02 2012 Dmitry V. Levin <ldv@altlinux.org> 4.7-1
- New upstream release.
+ implemented proper handling of real SIGTRAPs (#162774).
* Sat Jan 14 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 4.6-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_17_Mass_Rebuild
* Mon Mar 14 2011 Dmitry V. Levin <ldv@altlinux.org> - 4.6-1
- New upstream release.
+ fixed a corner case in waitpid handling (#663547).
* Wed Feb 09 2011 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 4.5.20-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_15_Mass_Rebuild
* Tue Apr 13 2010 Roland McGrath <roland@redhat.com> - 4.5.20-1
- New upstream release, work mostly by Andreas Schwab and Dmitry V. Levin.
+ fixed potential stack buffer overflow in select decoder (#556678);
+ fixed FTBFS (#539044).
* Wed Oct 21 2009 Roland McGrath <roland@redhat.com> - 4.5.19-1
- New upstream release, work mostly by Dmitry V. Levin <ldv@altlinux.org>
+ exit/kill strace with traced process exitcode/signal (#105371);
+ fixed build on ARM EABI (#507576);
+ fixed display of 32-bit argv array on 64-bit architectures (#519480);
+ fixed display of 32-bit fcntl(F_SETLK) on 64-bit architectures (#471169);
+ fixed several bugs in strings decoder, including potential heap
memory corruption (#470529, #478324, #511035).
* Thu Aug 28 2008 Roland McGrath <roland@redhat.com> - 4.5.18-1
- build fix for newer kernel headers (#457291)
- fix CLONE_VFORK handling (#455078)
- Support new Linux/PPC system call subpage_prot and PROT_SAO flag.
- In sigaction system call, display sa_flags value along with SIG_DFL/SIG_IGN.
* Mon Jul 21 2008 Roland McGrath <roland@redhat.com> - 4.5.17-1
- handle O_CLOEXEC, MSG_CMSG_CLOEXEC (#365781)
- fix biarch stat64 decoding (#222275)
- fix spurious "..." in printing of environment strings (#358241)
- improve prctl decoding (#364401)
- fix hang wait on exited child with exited child (#354261)
- fix biarch fork/vfork (-f) tracing (#447475)
- fix biarch printing of negative argument kill (#430585)
- fix biarch decoding of error return values (#447587)
- fix -f tracing of CLONE_VFORK (#455078)
- fix ia64 register clobberation in -f tracing (#453438)
- print SO_NODEFER, SA_RESETHAND instead of SA_NOMASK, SA_ONESHOT (#455821)
- fix futex argument decoding (#448628, #448629)
* Fri Aug 3 2007 Roland McGrath <roland@redhat.com> - 4.5.16-1
- fix multithread issues (#240962, #240961, #247907)
- fix spurious SIGSTOP on early interrupt (#240986)
- fix utime for biarch (#247185)
- fix -u error message (#247170)
- better futex syscall printing (##241467)
- fix argv/envp printing with small -s settings, and for biarch
- new syscalls: getcpu, eventfd, timerfd, signalfd, epoll_pwait,
move_pages, utimensat
* Tue Jan 16 2007 Roland McGrath <roland@redhat.com> - 4.5.15-1
- biarch fixes (#179740, #192193, #171626, #173050, #218433, #218043)
- fix -ff -o behavior (#204950, #218435, #193808, #219423)
- better quotactl printing (#118696)
- *at, inotify*, pselect6, ppoll and unshare syscalls (#178633, #191275)
- glibc-2.5 build fixes (#209856)
- memory corruption fixes (#200621
- fix race in child setup under -f (#180293)
- show ipc key values in hex (#198179, #192182)
- disallow -c with -ff (#187847)
- Resolves: RHBZ #179740, RHBZ #192193, RHBZ #204950, RHBZ #218435
- Resolves: RHBZ #193808, RHBZ #219423, RHBZ #171626, RHBZ #173050
- Resolves: RHBZ #218433, RHBZ #218043, RHBZ #118696, RHBZ #178633
- Resolves: RHBZ #191275, RHBZ #209856, RHBZ #200621, RHBZ #180293
- Resolves: RHBZ #198179, RHBZ #198182, RHBZ #187847
* Mon Nov 20 2006 Jakub Jelinek <jakub@redhat.com> - 4.5.14-4
- Fix ia64 syscall decoding (#206768)
- Fix build with glibc-2.4.90-33 and up on all arches but ia64
- Fix build against 2.6.18+ headers
* Tue Aug 22 2006 Roland McGrath <roland@redhat.com> - 4.5.14-3
- Fix bogus decoding of syscalls >= 300 (#201462, #202620).
* Fri Jul 14 2006 Jesse Keating <jkeating@redhat.com> - 4.5.14-2
- rebuild
* Fri Feb 10 2006 Jesse Keating <jkeating@redhat.com> - 4.5.14-1.2
- bump again for long double bug on ppc{,64}
* Tue Feb 07 2006 Jesse Keating <jkeating@redhat.com> - 4.5.14-1.1
- rebuilt for new gcc4.1 snapshot and glibc changes
* Mon Jan 16 2006 Roland McGrath <roland@redhat.com> - 4.5.14-1
- Fix biarch decoding of socket syscalls (#174354).
- Fix biarch -e support (#173986).
- Accept numeric syscalls in -e (#174798).
- Fix ipc syscall decoding (#164755).
- Improve msgrcv printing (#164757).
- Man page updates (#165375).
- Improve mount syscall printing (#165377).
- Correct printing of restarting syscalls (#165469).
* Wed Aug 3 2005 Roland McGrath <roland@redhat.com> - 4.5.13-1
- Fix setsockopt decoding on 64-bit (#162449).
- Fix typos in socket option name strings (#161578).
- Display more IPV6 socket options by name (#162450).
- Don't display inappropriate syscalls for -e trace=file (#159340).
- New selector type -e trace=desc for file-descriptor using calls (#159400).
- Fix 32-bit old_mmap syscall decoding on x86-64 (#162467, #164215).
- Fix errors detaching from multithreaded process on interrupt (#161919).
- Note 4.5.12 fix for crash handling bad signal numbers (#162739).
* Wed Jun 8 2005 Roland McGrath <roland@redhat.com> - 4.5.12-1
- Fix known syscall recognition for IA32 processes on x86-64 (#158934).
- Fix bad output for ptrace on x86-64 (#159787).
- Fix potential buffer overruns (#151570, #159196).
- Make some diagnostics more consistent (#159308).
- Update PowerPC system calls.
- Better printing for Linux aio system calls.
- Don't truncate statfs64 fields to 32 bits in output (#158243).
- Cosmetic code cleanups (#159688).
* Tue Mar 22 2005 Roland McGrath <roland@redhat.com> - 4.5.11-1
- Build tweaks.
- Note 4.5.10 select fix (#151570).
* Mon Mar 14 2005 Roland McGrath <roland@redhat.com> - 4.5.10-1
- Fix select handling on nonstandard fd_set sizes.
- Don't print errors for null file name pointers.
- Fix initial execve output with -i (#143365).
* Fri Feb 4 2005 Roland McGrath <roland@redhat.com> - 4.5.9-2
- update ia64 syscall list (#146245)
- fix x86_64 syscall argument extraction for 32-bit processes (#146093)
- fix -e signal=NAME parsing (#143362)
- fix x86_64 exit_group syscall handling
- improve socket ioctl printing (#138223)
- code cleanups (#143369, #143370)
- improve mount flags printing (#141932)
- support symbolic printing of x86_64 arch_prctl parameters (#142667)
- fix potential crash in getxattr printing
* Tue Oct 19 2004 Roland McGrath <roland@redhat.com> - 4.5.8-1
- fix multithreaded exit handling (#132150, #135254)
- fix ioctl name matching (#129808)
- print RTC_* ioctl structure contents (#58606)
- grok epoll_* syscalls (#134463)
- grok new RLIMIT_* values (#133594)
- print struct cmsghdr contents for sendmsg (#131689)
- fix clock_* and timer_* argument output (#131420)
* Tue Aug 31 2004 Roland McGrath <roland@redhat.com> - 4.5.7-2
- new upstream version, misc fixes and updates (#128091, #129166, #128391, #129378, #130965, #131177)
* Mon Jul 12 2004 Roland McGrath <roland@redhat.com> 4.5.6-1
- new upstream version, updates ioctl lists (#127398), fixes quotactl (#127393), more ioctl decoding (#126917)
* Sun Jun 27 2004 Roland McGrath <roland@redhat.com> 4.5.5-1
- new upstream version, fixes x86-64 biarch support (#126547)
* Tue Jun 15 2004 Elliot Lee <sopwith@redhat.com> 4.5.4-2
- rebuilt
* Thu Jun 3 2004 Roland McGrath <roland@redhat.com> 4.5.4-0.FC1
- rebuilt for FC1 update
* Thu Jun 3 2004 Roland McGrath <roland@redhat.com> 4.5.4-1
- new upstream version, more ioctls (#122257), minor fixes
* Fri Apr 16 2004 Roland McGrath <roland@redhat.com> 4.5.3-1
- new upstream version, mq_* calls (#120701), -p vs NPTL (#120462), more fixes (#118694, #120541, #118685)
* Tue Mar 02 2004 Elliot Lee <sopwith@redhat.com> 4.5.2-1.1
- rebuilt
* Mon Mar 1 2004 Roland McGrath <roland@redhat.com> 4.5.2-1
- new upstream version, sched_* calls (#116990), show core flag (#112117)
* Fri Feb 13 2004 Elliot Lee <sopwith@redhat.com>
- rebuilt
* Thu Nov 13 2003 Roland McGrath <roland@redhat.com> 4.5.1-1
- new upstream version, more fixes (#108012, #105366, #105359, #105358)
* Tue Sep 30 2003 Roland McGrath <roland@redhat.com> 4.5-3
- revert bogus s390 fix
* Thu Sep 25 2003 Roland McGrath <roland@redhat.com> 4.5-1.2.1AS
- rebuilt for 2.1AS erratum
* Wed Sep 24 2003 Roland McGrath <roland@redhat.com> 4.5-2
- rebuilt
* Wed Sep 24 2003 Roland McGrath <roland@redhat.com> 4.5-1
- new upstream version, more fixes (#101499, #104365)
* Thu Jul 17 2003 Roland McGrath <roland@redhat.com> 4.4.99-2
- rebuilt
* Thu Jul 17 2003 Roland McGrath <roland@redhat.com> 4.4.99-1
- new upstream version, groks more new system calls, PF_INET6 sockets
* Tue Jun 10 2003 Roland McGrath <roland@redhat.com> 4.4.98-1
- new upstream version, more fixes (#90754, #91085)
* Wed Jun 04 2003 Elliot Lee <sopwith@redhat.com>
- rebuilt
* Sun Mar 30 2003 Roland McGrath <roland@redhat.com> 4.4.96-1
- new upstream version, handles yet more 2.5 syscalls, x86_64 & ia64 fixes
* Mon Feb 24 2003 Elliot Lee <sopwith@redhat.com> 4.4.95-2
- rebuilt
* Mon Feb 24 2003 Roland McGrath <roland@redhat.com> 4.4.95-1
- new upstream version, fixed getresuid/getresgid (#84959)
* Wed Feb 19 2003 Roland McGrath <roland@redhat.com> 4.4.94-1
- new upstream version, new option -E to set environment variables (#82392)
* Wed Jan 22 2003 Tim Powers <timp@redhat.com> 4.4.93-2
- rebuilt
* Tue Jan 21 2003 Roland McGrath <roland@redhat.com> 4.4.93-1
- new upstream version, fixes ppc and s390 bugs, adds missing ptrace requests
* Fri Jan 10 2003 Roland McGrath <roland@redhat.com> 4.4.91-1
- new upstream version, fixes -f on x86-64
* Fri Jan 10 2003 Roland McGrath <roland@redhat.com> 4.4.90-1
- new upstream version, fixes all known bugs modulo ia64 and s390 issues
* Fri Jan 03 2003 Florian La Roche <Florian.LaRoche@redhat.de> 4.4-11
- add further s390 patch from IBM
* Wed Nov 27 2002 Tim Powers <timp@redhat.com> 4.4-10
- remove unpackaged files from the buildroot
* Mon Oct 07 2002 Phil Knirsch <pknirsch@redhat.com> 4.4-9.1
- Added latest s390(x) patch.
* Fri Sep 06 2002 Karsten Hopp <karsten@redhat.de> 4.4-9
- preliminary x86_64 support with an ugly patch to help
debugging. Needs cleanup!
* Mon Sep 2 2002 Jakub Jelinek <jakub@redhat.com> 4.4-8
- newer version of the clone fixing patch (Roland McGrath)
- aio syscalls for i386/ia64/ppc (Ben LaHaise)
* Wed Aug 28 2002 Jakub Jelinek <jakub@redhat.com> 4.4-7
- fix strace -f (Roland McGrath, #68994)
- handle ?et_thread_area, SA_RESTORER (Ulrich Drepper)
* Fri Jun 21 2002 Jakub Jelinek <jakub@redhat.com> 4.4-6
- handle futexes, *xattr, sendfile64, etc. (Ulrich Drepper)
- handle modify_ldt (#66894)
* Thu May 23 2002 Tim Powers <timp@redhat.com>
- automated rebuild
* Tue Apr 16 2002 Jakub Jelinek <jakub@redhat.com> 4.4-4
- fix for the last patch by Jeff Law (#62591)
* Mon Mar 4 2002 Preston Brown <pbrown@redhat.com> 4.4-3
- integrate patch from Jeff Law to eliminate hang tracing threads
* Sat Feb 23 2002 Florian La Roche <Florian.LaRoche@redhat.de>
- minor update from debian tar-ball
* Wed Jan 02 2002 Florian La Roche <Florian.LaRoche@redhat.de>
- update to 4.4
* Sun Jul 22 2001 Florian La Roche <Florian.LaRoche@redhat.de>
- disable s390 patches, they are already included
* Wed Jul 18 2001 Preston Brown <pbrown@redhat.com> 4.3-1
- new upstream version. Seems to have integrated most new syscalls
- tracing threaded programs is now functional.
* Mon Jun 11 2001 Than Ngo <than@redhat.com>
- port s390 patches from IBM
* Wed May 16 2001 Nalin Dahyabhai <nalin@redhat.com>
- modify new syscall patch to allocate enough heap space in setgroups32()
* Wed Feb 14 2001 Jakub Jelinek <jakub@redhat.com>
- #include <time.h> in addition to <sys/time.h>
* Fri Jan 26 2001 Karsten Hopp <karsten@redhat.com>
- clean up conflicting patches. This happened only
when building on S390
* Fri Jan 19 2001 Bill Nottingham <notting@redhat.com>
- update to CVS, reintegrate ia64 support
* Fri Dec 8 2000 Bernhard Rosenkraenzer <bero@redhat.com>
- Get S/390 support into the normal package
* Sat Nov 18 2000 Florian La Roche <Florian.LaRoche@redhat.de>
- added S/390 patch from IBM, adapting it to not conflict with
IA64 patch
* Sat Aug 19 2000 Jakub Jelinek <jakub@redhat.com>
- doh, actually apply the 2.4 syscalls patch
- make it compile with 2.4.0-test7-pre4+ headers, add
getdents64 and fcntl64
* Thu Aug 3 2000 Jakub Jelinek <jakub@redhat.com>
- add a bunch of new 2.4 syscalls (#14036)
* Wed Jul 12 2000 Prospector <bugzilla@redhat.com>
- automatic rebuild
- excludearch ia64
* Fri Jun 2 2000 Matt Wilson <msw@redhat.com>
- use buildinstall for FHS
* Wed May 24 2000 Jakub Jelinek <jakub@redhat.com>
- make things compile on sparc
- fix sigreturn on sparc
* Fri Mar 31 2000 Bill Nottingham <notting@redhat.com>
- fix stat64 misdef (#10485)
* Tue Mar 21 2000 Michael K. Johnson <johnsonm@redhat.com>
- added ia64 patch
* Thu Feb 03 2000 Cristian Gafton <gafton@redhat.com>
- man pages are compressed
- version 4.2 (why are we keeping all these patches around?)
* Sat Nov 27 1999 Jeff Johnson <jbj@redhat.com>
- update to 4.1 (with sparc socketcall patch).
* Fri Nov 12 1999 Jakub Jelinek <jakub@redhat.com>
- fix socketcall on sparc.
* Thu Sep 02 1999 Cristian Gafton <gafton@redhat.com>
- fix KERN_SECURELVL compile problem
* Tue Aug 31 1999 Cristian Gafton <gafton@redhat.com>
- added alpha patch from HJLu to fix the osf_sigprocmask interpretation
* Sat Jun 12 1999 Jeff Johnson <jbj@redhat.com>
- update to 3.99.1.
* Wed Jun 2 1999 Jeff Johnson <jbj@redhat.com>
- add (the other :-) jj's sparc patch.
* Wed May 26 1999 Jeff Johnson <jbj@redhat.com>
- upgrade to 3.99 in order to
- add new 2.2.x open flags (#2955).
- add new 2.2.x syscalls (#2866).
- strace 3.1 patches carried along for now.
* Sun May 16 1999 Jeff Johnson <jbj@redhat.com>
- don't rely on (broken!) rpm %%patch (#2735)
* Tue Apr 06 1999 Preston Brown <pbrown@redhat.com>
- strip binary
* Sun Mar 21 1999 Cristian Gafton <gafton@redhat.com>
- auto rebuild in the new build environment (release 16)
* Tue Feb 9 1999 Jeff Johnson <jbj@redhat.com>
- vfork est arrive!
* Tue Feb 9 1999 Christopher Blizzard <blizzard@redhat.com>
- Add patch to follow clone() syscalls, too.
* Sun Jan 17 1999 Jeff Johnson <jbj@redhat.com>
- patch to build alpha/sparc with glibc 2.1.
* Thu Dec 03 1998 Cristian Gafton <gafton@redhat.com>
- patch to build on ARM
* Wed Sep 30 1998 Jeff Johnson <jbj@redhat.com>
- fix typo (printf, not tprintf).
* Sat Sep 19 1998 Jeff Johnson <jbj@redhat.com>
- fix compile problem on sparc.
* Tue Aug 18 1998 Cristian Gafton <gafton@redhat.com>
- buildroot
* Mon Jul 20 1998 Cristian Gafton <gafton@redhat.com>
- added the umoven patch from James Youngman <jay@gnu.org>
- fixed build problems on newer glibc releases
* Mon Jun 08 1998 Prospector System <bugs@redhat.com>
- translations modified for de, fr, tr