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-rw-r--r--tests/lib/libc/sys/t_ptrace_i386_wait.h154
1 files changed, 152 insertions, 2 deletions
diff --git a/tests/lib/libc/sys/t_ptrace_i386_wait.h b/tests/lib/libc/sys/t_ptrace_i386_wait.h
index 7ed9819755c..4ee06dd8f5a 100644
--- a/tests/lib/libc/sys/t_ptrace_i386_wait.h
+++ b/tests/lib/libc/sys/t_ptrace_i386_wait.h
@@ -1,4 +1,4 @@
-/* $NetBSD: t_ptrace_i386_wait.h,v 1.5 2019/05/05 15:05:22 mgorny Exp $ */
+/* $NetBSD: t_ptrace_i386_wait.h,v 1.6 2019/05/05 18:15:40 mgorny Exp $ */
/*-
* Copyright (c) 2016, 2017, 2018, 2019 The NetBSD Foundation, Inc.
@@ -100,8 +100,158 @@ ATF_TC_BODY(i386_regs1, tc)
DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
}
+
+ATF_TC(i386_regs_gp_read);
+ATF_TC_HEAD(i386_regs_gp_read, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Set general-purpose reg values from debugged program and read "
+ "them via PT_GETREGS, comparing values against expected.");
+}
+
+ATF_TC_BODY(i386_regs_gp_read, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGTRAP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ struct reg gpr;
+
+ const uint32_t eax = 0x00010203;
+ const uint32_t ebx = 0x10111213;
+ const uint32_t ecx = 0x20212223;
+ const uint32_t edx = 0x30313233;
+ const uint32_t esi = 0x40414243;
+ const uint32_t edi = 0x50515253;
+
+ 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);
+
+ DPRINTF("Before running assembly from child\n");
+
+ __asm__ __volatile__(
+ "int3\n\t"
+ :
+ : "a"(eax), "b"(ebx), "c"(ecx), "d"(edx), "S"(esi), "D"(edi)
+ :
+ );
+
+ 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);
+
+ DPRINTF("Call GETREGS for the child process\n");
+ SYSCALL_REQUIRE(ptrace(PT_GETREGS, child, &gpr, 0) != -1);
+
+ ATF_CHECK_EQ((uint32_t)gpr.r_eax, eax);
+ ATF_CHECK_EQ((uint32_t)gpr.r_ebx, ebx);
+ ATF_CHECK_EQ((uint32_t)gpr.r_ecx, ecx);
+ ATF_CHECK_EQ((uint32_t)gpr.r_edx, edx);
+ ATF_CHECK_EQ((uint32_t)gpr.r_esi, esi);
+ ATF_CHECK_EQ((uint32_t)gpr.r_edi, edi);
+
+ DPRINTF("Before resuming the child process where it left off and "
+ "without signal to be sent\n");
+ SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1);
+
+ DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
+
+ validate_status_exited(status, exitval);
+
+ DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
+}
+
+ATF_TC(i386_regs_ebp_esp_read);
+ATF_TC_HEAD(i386_regs_ebp_esp_read, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Set EBP & ESP reg values from debugged program and read "
+ "them via PT_GETREGS, comparing values against expected.");
+}
+
+ATF_TC_BODY(i386_regs_ebp_esp_read, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGTRAP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ struct reg gpr;
+
+ const uint32_t esp = 0x60616263;
+ const uint32_t ebp = 0x70717273;
+
+ 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);
+
+ DPRINTF("Before running assembly from child\n");
+
+ __asm__ __volatile__(
+ /* ebp & ebp are a bit tricky, we must not clobber them */
+ "movl %%esp, %%eax\n\t"
+ "movl %%ebp, %%ebx\n\t"
+ "movl %0, %%esp\n\t"
+ "movl %1, %%ebp\n\t"
+ "\n\t"
+ "int3\n\t"
+ "\n\t"
+ "movl %%eax, %%esp\n\t"
+ "movl %%ebx, %%ebp\n\t"
+ :
+ : "ri"(esp), "ri"(ebp)
+ : "%eax", "%ebx"
+ );
+
+ 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);
+
+ DPRINTF("Call GETREGS for the child process\n");
+ SYSCALL_REQUIRE(ptrace(PT_GETREGS, child, &gpr, 0) != -1);
+
+ ATF_CHECK_EQ((uint32_t)gpr.r_esp, esp);
+ ATF_CHECK_EQ((uint32_t)gpr.r_ebp, ebp);
+
+ DPRINTF("Before resuming the child process where it left off and "
+ "without signal to be sent\n");
+ SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1);
+
+ DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
+
+ validate_status_exited(status, exitval);
+
+ DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
+}
+
#define ATF_TP_ADD_TCS_PTRACE_WAIT_I386() \
- ATF_TP_ADD_TC_HAVE_GPREGS(tp, i386_regs1);
+ ATF_TP_ADD_TC_HAVE_GPREGS(tp, i386_regs1); \
+ ATF_TP_ADD_TC_HAVE_GPREGS(tp, i386_regs_gp_read); \
+ ATF_TP_ADD_TC_HAVE_GPREGS(tp, i386_regs_ebp_esp_read);
#else
#define ATF_TP_ADD_TCS_PTRACE_WAIT_I386()
#endif