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[src/trunk]: src/tests/lib/libc/sys Move byte transfer tests out of t_ptrace_...
details: https://anonhg.NetBSD.org/src/rev/b84e0ed1bb0d
branches: trunk
changeset: 971793:b84e0ed1bb0d
user: kamil <kamil%NetBSD.org@localhost>
date: Mon May 04 22:05:28 2020 +0000
description:
Move byte transfer tests out of t_ptrace_wait.c to t_ptrace_bytetransfer_wait.h
The same tests are now included with the preprocessor in t_ptrace_wait.c.
No functional change intended.
diffstat:
tests/lib/libc/sys/t_ptrace_bytetransfer_wait.h | 907 ++++++++++++++++++++++++
tests/lib/libc/sys/t_ptrace_wait.c | 826 +---------------------
2 files changed, 911 insertions(+), 822 deletions(-)
diffs (truncated from 1772 to 300 lines):
diff -r b64dfe9b6a1f -r b84e0ed1bb0d tests/lib/libc/sys/t_ptrace_bytetransfer_wait.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/lib/libc/sys/t_ptrace_bytetransfer_wait.h Mon May 04 22:05:28 2020 +0000
@@ -0,0 +1,907 @@
+/* $NetBSD: t_ptrace_bytetransfer_wait.h,v 1.1 2020/05/04 22:05:28 kamil Exp $ */
+
+/*-
+ * Copyright (c) 2016, 2017, 2018, 2019, 2020 The NetBSD Foundation, Inc.
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``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 FOUNDATION OR CONTRIBUTORS
+ * 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.
+ */
+
+
+enum bytes_transfer_type {
+ BYTES_TRANSFER_DATA,
+ BYTES_TRANSFER_DATAIO,
+ BYTES_TRANSFER_TEXT,
+ BYTES_TRANSFER_TEXTIO,
+ BYTES_TRANSFER_AUXV
+};
+
+static int __used
+bytes_transfer_dummy(int a, int b, int c, int d)
+{
+ int e, f, g, h;
+
+ a *= 4;
+ b += 3;
+ c -= 2;
+ d /= 1;
+
+ e = strtol("10", NULL, 10);
+ f = strtol("20", NULL, 10);
+ g = strtol("30", NULL, 10);
+ h = strtol("40", NULL, 10);
+
+ return (a + b * c - d) + (e * f - g / h);
+}
+
+static void
+bytes_transfer(int operation, size_t size, enum bytes_transfer_type type)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+ bool skip = false;
+
+ int lookup_me = 0;
+ uint8_t lookup_me8 = 0;
+ uint16_t lookup_me16 = 0;
+ uint32_t lookup_me32 = 0;
+ uint64_t lookup_me64 = 0;
+
+ int magic = 0x13579246;
+ uint8_t magic8 = 0xab;
+ uint16_t magic16 = 0x1234;
+ uint32_t magic32 = 0x98765432;
+ uint64_t magic64 = 0xabcdef0123456789;
+
+ struct ptrace_io_desc io;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ /* 513 is just enough, for the purposes of ATF it's good enough */
+ AuxInfo ai[513], *aip;
+
+ ATF_REQUIRE(size < sizeof(ai));
+
+ /* Prepare variables for .TEXT transfers */
+ switch (type) {
+ case BYTES_TRANSFER_TEXT:
+ memcpy(&magic, bytes_transfer_dummy, sizeof(magic));
+ break;
+ case BYTES_TRANSFER_TEXTIO:
+ switch (size) {
+ case 8:
+ memcpy(&magic8, bytes_transfer_dummy, sizeof(magic8));
+ break;
+ case 16:
+ memcpy(&magic16, bytes_transfer_dummy, sizeof(magic16));
+ break;
+ case 32:
+ memcpy(&magic32, bytes_transfer_dummy, sizeof(magic32));
+ break;
+ case 64:
+ memcpy(&magic64, bytes_transfer_dummy, sizeof(magic64));
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+
+ /* Prepare variables for PIOD and AUXV transfers */
+ switch (type) {
+ case BYTES_TRANSFER_TEXTIO:
+ case BYTES_TRANSFER_DATAIO:
+ io.piod_op = operation;
+ switch (size) {
+ case 8:
+ io.piod_offs = (type == BYTES_TRANSFER_TEXTIO) ?
+ (void *)bytes_transfer_dummy :
+ &lookup_me8;
+ io.piod_addr = &lookup_me8;
+ io.piod_len = sizeof(lookup_me8);
+ break;
+ case 16:
+ io.piod_offs = (type == BYTES_TRANSFER_TEXTIO) ?
+ (void *)bytes_transfer_dummy :
+ &lookup_me16;
+ io.piod_addr = &lookup_me16;
+ io.piod_len = sizeof(lookup_me16);
+ break;
+ case 32:
+ io.piod_offs = (type == BYTES_TRANSFER_TEXTIO) ?
+ (void *)bytes_transfer_dummy :
+ &lookup_me32;
+ io.piod_addr = &lookup_me32;
+ io.piod_len = sizeof(lookup_me32);
+ break;
+ case 64:
+ io.piod_offs = (type == BYTES_TRANSFER_TEXTIO) ?
+ (void *)bytes_transfer_dummy :
+ &lookup_me64;
+ io.piod_addr = &lookup_me64;
+ io.piod_len = sizeof(lookup_me64);
+ break;
+ default:
+ break;
+ }
+ break;
+ case BYTES_TRANSFER_AUXV:
+ io.piod_op = operation;
+ io.piod_offs = 0;
+ io.piod_addr = ai;
+ io.piod_len = size;
+ break;
+ default:
+ break;
+ }
+
+ DPRINTF("Before forking process PID=%d\n", getpid());
+ SYSCALL_REQUIRE((child = fork()) != -1);
+ if (child == 0) {
+ DPRINTF("Before calling PT_TRACE_ME from child %d\n", getpid());
+ FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1);
+
+ switch (type) {
+ case BYTES_TRANSFER_DATA:
+ switch (operation) {
+ case PT_READ_D:
+ case PT_READ_I:
+ lookup_me = magic;
+ break;
+ default:
+ break;
+ }
+ break;
+ case BYTES_TRANSFER_DATAIO:
+ switch (operation) {
+ case PIOD_READ_D:
+ case PIOD_READ_I:
+ switch (size) {
+ case 8:
+ lookup_me8 = magic8;
+ break;
+ case 16:
+ lookup_me16 = magic16;
+ break;
+ case 32:
+ lookup_me32 = magic32;
+ break;
+ case 64:
+ lookup_me64 = magic64;
+ break;
+ default:
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+ default:
+ break;
+ }
+
+ DPRINTF("Before raising %s from child\n", strsignal(sigval));
+ FORKEE_ASSERT(raise(sigval) == 0);
+
+ /* Handle PIOD and PT separately as operation values overlap */
+ switch (type) {
+ case BYTES_TRANSFER_DATA:
+ switch (operation) {
+ case PT_WRITE_D:
+ case PT_WRITE_I:
+ FORKEE_ASSERT_EQ(lookup_me, magic);
+ break;
+ default:
+ break;
+ }
+ break;
+ case BYTES_TRANSFER_DATAIO:
+ switch (operation) {
+ case PIOD_WRITE_D:
+ case PIOD_WRITE_I:
+ switch (size) {
+ case 8:
+ FORKEE_ASSERT_EQ(lookup_me8, magic8);
+ break;
+ case 16:
+ FORKEE_ASSERT_EQ(lookup_me16, magic16);
+ break;
+ case 32:
+ FORKEE_ASSERT_EQ(lookup_me32, magic32);
+ break;
+ case 64:
+ FORKEE_ASSERT_EQ(lookup_me64, magic64);
+ break;
+ default:
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+ break;
+ case BYTES_TRANSFER_TEXT:
+ FORKEE_ASSERT(memcmp(&magic, bytes_transfer_dummy,
+ sizeof(magic)) == 0);
+ break;
+ case BYTES_TRANSFER_TEXTIO:
+ switch (size) {
+ case 8:
+ FORKEE_ASSERT(memcmp(&magic8,
+ bytes_transfer_dummy,
+ sizeof(magic8)) == 0);
+ break;
+ case 16:
+ FORKEE_ASSERT(memcmp(&magic16,
+ bytes_transfer_dummy,
+ sizeof(magic16)) == 0);
+ break;
+ case 32:
+ FORKEE_ASSERT(memcmp(&magic32,
+ bytes_transfer_dummy,
+ sizeof(magic32)) == 0);
+ break;
+ case 64:
+ FORKEE_ASSERT(memcmp(&magic64,
+ bytes_transfer_dummy,
+ sizeof(magic64)) == 0);
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+
+ DPRINTF("Before exiting of the child process\n");
+ _exit(exitval);
+ }
+ DPRINTF("Parent process PID=%d, child's PID=%d\n", getpid(), child);
+
+ DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
+
+ validate_status_stopped(status, sigval);
+
+ /* Check PaX MPROTECT */
+ if (!can_we_write_to_text(child)) {
+ switch (type) {
+ case BYTES_TRANSFER_TEXTIO:
+ switch (operation) {
+ case PIOD_WRITE_D:
+ case PIOD_WRITE_I:
+ skip = true;
+ break;
+ default:
+ break;
+ }
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