diff options
| author | kamil <kamil@NetBSD.org> | 2017-03-30 20:24:35 +0000 |
|---|---|---|
| committer | kamil <kamil@NetBSD.org> | 2017-03-30 20:24:35 +0000 |
| commit | 1ebd3fbe718f9e3585e9b607ed4d8ab6c545e264 (patch) | |
| tree | 4267584e4c417142fec9cd048d01d15b12159a6c /tests/kernel | |
| parent | c75a54f942e63a42e01c569c97694e82234a3fc5 (diff) | |
Remove deuplicated code in dbregs_dr[01234]_dont_inherit_lwp
Currently remove tests for dbregs_dr[67]_dont_inherit_lwp.
Sponsored by <The NetBSD Foundation>
Diffstat (limited to 'tests/kernel')
| -rw-r--r-- | tests/kernel/arch/x86/t_ptrace_wait.c | 654 |
1 files changed, 24 insertions, 630 deletions
diff --git a/tests/kernel/arch/x86/t_ptrace_wait.c b/tests/kernel/arch/x86/t_ptrace_wait.c index c173e26a0e8..e773e8e4fc8 100644 --- a/tests/kernel/arch/x86/t_ptrace_wait.c +++ b/tests/kernel/arch/x86/t_ptrace_wait.c @@ -1,4 +1,4 @@ -/* $NetBSD: t_ptrace_wait.c,v 1.5 2017/03/30 02:17:38 kamil Exp $ */ +/* $NetBSD: t_ptrace_wait.c,v 1.6 2017/03/30 20:24:35 kamil Exp $ */ /*- * Copyright (c) 2016 The NetBSD Foundation, Inc. @@ -27,7 +27,7 @@ */ #include <sys/cdefs.h> -__RCSID("$NetBSD: t_ptrace_wait.c,v 1.5 2017/03/30 02:17:38 kamil Exp $"); +__RCSID("$NetBSD: t_ptrace_wait.c,v 1.6 2017/03/30 20:24:35 kamil Exp $"); #include <sys/param.h> #include <sys/types.h> @@ -1622,17 +1622,8 @@ lwp_main_func(void *arg) _lwp_exit(); } -#if defined(HAVE_DBREGS) -ATF_TC(dbregs_dr0_dont_inherit_lwp); -ATF_TC_HEAD(dbregs_dr0_dont_inherit_lwp, tc) -{ - atf_tc_set_md_var(tc, "descr", - "Verify that 1 LWP creation is intercepted by ptrace(2) with " - "EVENT_MASK set to PTRACE_LWP_CREATE and Debug Register 0 from " - "the forker thread is not inherited"); -} - -ATF_TC_BODY(dbregs_dr0_dont_inherit_lwp, tc) +static void +dbregs_dont_inherit_lwp(int reg) { const int exitval = 5; const int sigval = SIGSTOP; @@ -1698,9 +1689,9 @@ ATF_TC_BODY(dbregs_dr0_dont_inherit_lwp, tc) for (i = 0; i < __arraycount(r1.dr); i++) printf("r1[%zu]=%" PRIxREGISTER "\n", i, r1.dr[i]); - r1.dr[0] = (long)(intptr_t)check_happy; - printf("Set DR0 (r1.dr[0]) to new value %" PRIxREGISTER "\n", - r1.dr[0]); + r1.dr[reg] = (long)(intptr_t)check_happy; + printf("Set DR%d (r1.dr[%d]) to new value %" PRIxREGISTER "\n", + reg, reg, r1.dr[0]); printf("New state of the debug registers (r1):\n"); for (i = 0; i < __arraycount(r1.dr); i++) @@ -1750,9 +1741,21 @@ ATF_TC_BODY(dbregs_dr0_dont_inherit_lwp, tc) TWAIT_FNAME); TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0)); } -#endif -#if defined(HAVE_DBREGS) +ATF_TC(dbregs_dr0_dont_inherit_lwp); +ATF_TC_HEAD(dbregs_dr0_dont_inherit_lwp, tc) +{ + atf_tc_set_md_var(tc, "descr", + "Verify that 1 LWP creation is intercepted by ptrace(2) with " + "EVENT_MASK set to PTRACE_LWP_CREATE and Debug Register 0 from " + "the forker thread is not inherited"); +} + +ATF_TC_BODY(dbregs_dr0_dont_inherit_lwp, tc) +{ + dbregs_dont_inherit_lwp(0); +} + ATF_TC(dbregs_dr1_dont_inherit_lwp); ATF_TC_HEAD(dbregs_dr1_dont_inherit_lwp, tc) { @@ -1764,125 +1767,9 @@ ATF_TC_HEAD(dbregs_dr1_dont_inherit_lwp, tc) ATF_TC_BODY(dbregs_dr1_dont_inherit_lwp, tc) { - const int exitval = 5; - const int sigval = SIGSTOP; - pid_t child, wpid; -#if defined(TWAIT_HAVE_STATUS) - int status; -#endif - ptrace_state_t state; - const int slen = sizeof(state); - ptrace_event_t event; - const int elen = sizeof(event); - ucontext_t uc; - lwpid_t lid; - static const size_t ssize = 16*1024; - void *stack; - size_t i; - struct dbreg r1; - struct dbreg r2; - - printf("Before forking process PID=%d\n", getpid()); - ATF_REQUIRE((child = fork()) != -1); - if (child == 0) { - printf("Before calling PT_TRACE_ME from child %d\n", getpid()); - FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1); - - printf("Before raising %s from child\n", strsignal(sigval)); - FORKEE_ASSERT(raise(sigval) == 0); - - printf("Before allocating memory for stack in child\n"); - FORKEE_ASSERT((stack = malloc(ssize)) != NULL); - - printf("Before making context for new lwp in child\n"); - _lwp_makecontext(&uc, lwp_main_func, NULL, NULL, stack, ssize); - - printf("Before creating new in child\n"); - FORKEE_ASSERT(_lwp_create(&uc, 0, &lid) == 0); - - printf("Before waiting for lwp %d to exit\n", lid); - FORKEE_ASSERT(_lwp_wait(lid, NULL) == 0); - - printf("Before verifying that reported %d and running lid %d " - "are the same\n", lid, the_lwp_id); - FORKEE_ASSERT_EQ(lid, the_lwp_id); - - printf("Before exiting of the child process\n"); - _exit(exitval); - } - printf("Parent process PID=%d, child's PID=%d\n", getpid(), child); - - printf("Before calling %s() for the child\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_stopped(status, sigval); - - printf("Set empty EVENT_MASK for the child %d\n", child); - event.pe_set_event = PTRACE_LWP_CREATE; - ATF_REQUIRE(ptrace(PT_SET_EVENT_MASK, child, &event, elen) != -1); - - printf("Call GETDBREGS for the child process (r1)\n"); - ATF_REQUIRE(ptrace(PT_GETDBREGS, child, &r1, 0) != -1); - - printf("State of the debug registers (r1):\n"); - for (i = 0; i < __arraycount(r1.dr); i++) - printf("r1[%zu]=%" PRIxREGISTER "\n", i, r1.dr[i]); - - r1.dr[1] = (long)(intptr_t)check_happy; - printf("Set DR1 (r1.dr[1]) to new value %" PRIxREGISTER "\n", - r1.dr[1]); - - printf("New state of the debug registers (r1):\n"); - for (i = 0; i < __arraycount(r1.dr); i++) - printf("r1[%zu]=%" PRIxREGISTER "\n", i, r1.dr[i]); - - printf("Call SETDBREGS for the child process (r1)\n"); - ATF_REQUIRE(ptrace(PT_SETDBREGS, child, &r1, 0) != -1); - - printf("Before resuming the child process where it left off and " - "without signal to be sent\n"); - ATF_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); - - printf("Before calling %s() for the child - expected stopped " - "SIGTRAP\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_stopped(status, SIGTRAP); - - ATF_REQUIRE(ptrace(PT_GET_PROCESS_STATE, child, &state, slen) != -1); - - ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_LWP_CREATE); - - lid = state.pe_lwp; - printf("Reported PTRACE_LWP_CREATE event with lid %d\n", lid); - - printf("Call GETDBREGS for the child process new lwp (r2)\n"); - ATF_REQUIRE(ptrace(PT_GETDBREGS, child, &r2, lid) != -1); - - printf("State of the debug registers (r2):\n"); - for (i = 0; i < __arraycount(r2.dr); i++) - printf("r2[%zu]=%" PRIxREGISTER "\n", i, r2.dr[i]); - - printf("Assert that (r1) and (r2) are not the same\n"); - ATF_REQUIRE(memcmp(&r1, &r2, sizeof(r1)) != 0); - - printf("Before resuming the child process where it left off and " - "without signal to be sent\n"); - ATF_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); - - printf("Before calling %s() for the child - expected exited\n", - TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_exited(status, exitval); - - printf("Before calling %s() for the child - expected no process\n", - TWAIT_FNAME); - TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0)); + dbregs_dont_inherit_lwp(1); } -#endif -#if defined(HAVE_DBREGS) ATF_TC(dbregs_dr2_dont_inherit_lwp); ATF_TC_HEAD(dbregs_dr2_dont_inherit_lwp, tc) { @@ -1894,125 +1781,9 @@ ATF_TC_HEAD(dbregs_dr2_dont_inherit_lwp, tc) ATF_TC_BODY(dbregs_dr2_dont_inherit_lwp, tc) { - const int exitval = 5; - const int sigval = SIGSTOP; - pid_t child, wpid; -#if defined(TWAIT_HAVE_STATUS) - int status; -#endif - ptrace_state_t state; - const int slen = sizeof(state); - ptrace_event_t event; - const int elen = sizeof(event); - ucontext_t uc; - lwpid_t lid; - static const size_t ssize = 16*1024; - void *stack; - size_t i; - struct dbreg r1; - struct dbreg r2; - - printf("Before forking process PID=%d\n", getpid()); - ATF_REQUIRE((child = fork()) != -1); - if (child == 0) { - printf("Before calling PT_TRACE_ME from child %d\n", getpid()); - FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1); - - printf("Before raising %s from child\n", strsignal(sigval)); - FORKEE_ASSERT(raise(sigval) == 0); - - printf("Before allocating memory for stack in child\n"); - FORKEE_ASSERT((stack = malloc(ssize)) != NULL); - - printf("Before making context for new lwp in child\n"); - _lwp_makecontext(&uc, lwp_main_func, NULL, NULL, stack, ssize); - - printf("Before creating new in child\n"); - FORKEE_ASSERT(_lwp_create(&uc, 0, &lid) == 0); - - printf("Before waiting for lwp %d to exit\n", lid); - FORKEE_ASSERT(_lwp_wait(lid, NULL) == 0); - - printf("Before verifying that reported %d and running lid %d " - "are the same\n", lid, the_lwp_id); - FORKEE_ASSERT_EQ(lid, the_lwp_id); - - printf("Before exiting of the child process\n"); - _exit(exitval); - } - printf("Parent process PID=%d, child's PID=%d\n", getpid(), child); - - printf("Before calling %s() for the child\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_stopped(status, sigval); - - printf("Set empty EVENT_MASK for the child %d\n", child); - event.pe_set_event = PTRACE_LWP_CREATE; - ATF_REQUIRE(ptrace(PT_SET_EVENT_MASK, child, &event, elen) != -1); - - printf("Call GETDBREGS for the child process (r1)\n"); - ATF_REQUIRE(ptrace(PT_GETDBREGS, child, &r1, 0) != -1); - - printf("State of the debug registers (r1):\n"); - for (i = 0; i < __arraycount(r1.dr); i++) - printf("r1[%zu]=%" PRIxREGISTER "\n", i, r1.dr[i]); - - r1.dr[2] = (long)(intptr_t)check_happy; - printf("Set DR2 (r1.dr[2]) to new value %" PRIxREGISTER "\n", - r1.dr[2]); - - printf("New state of the debug registers (r1):\n"); - for (i = 0; i < __arraycount(r1.dr); i++) - printf("r1[%zu]=%" PRIxREGISTER "\n", i, r1.dr[i]); - - printf("Call SETDBREGS for the child process (r1)\n"); - ATF_REQUIRE(ptrace(PT_SETDBREGS, child, &r1, 0) != -1); - - printf("Before resuming the child process where it left off and " - "without signal to be sent\n"); - ATF_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); - - printf("Before calling %s() for the child - expected stopped " - "SIGTRAP\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_stopped(status, SIGTRAP); - - ATF_REQUIRE(ptrace(PT_GET_PROCESS_STATE, child, &state, slen) != -1); - - ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_LWP_CREATE); - - lid = state.pe_lwp; - printf("Reported PTRACE_LWP_CREATE event with lid %d\n", lid); - - printf("Call GETDBREGS for the child process new lwp (r2)\n"); - ATF_REQUIRE(ptrace(PT_GETDBREGS, child, &r2, lid) != -1); - - printf("State of the debug registers (r2):\n"); - for (i = 0; i < __arraycount(r2.dr); i++) - printf("r2[%zu]=%" PRIxREGISTER "\n", i, r2.dr[i]); - - printf("Assert that (r1) and (r2) are not the same\n"); - ATF_REQUIRE(memcmp(&r1, &r2, sizeof(r1)) != 0); - - printf("Before resuming the child process where it left off and " - "without signal to be sent\n"); - ATF_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); - - printf("Before calling %s() for the child - expected exited\n", - TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_exited(status, exitval); - - printf("Before calling %s() for the child - expected no process\n", - TWAIT_FNAME); - TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0)); + dbregs_dont_inherit_lwp(2); } -#endif -#if defined(HAVE_DBREGS) ATF_TC(dbregs_dr3_dont_inherit_lwp); ATF_TC_HEAD(dbregs_dr3_dont_inherit_lwp, tc) { @@ -2024,383 +1795,8 @@ ATF_TC_HEAD(dbregs_dr3_dont_inherit_lwp, tc) ATF_TC_BODY(dbregs_dr3_dont_inherit_lwp, tc) { - const int exitval = 5; - const int sigval = SIGSTOP; - pid_t child, wpid; -#if defined(TWAIT_HAVE_STATUS) - int status; -#endif - ptrace_state_t state; - const int slen = sizeof(state); - ptrace_event_t event; - const int elen = sizeof(event); - ucontext_t uc; - lwpid_t lid; - static const size_t ssize = 16*1024; - void *stack; - size_t i; - struct dbreg r1; - struct dbreg r2; - - printf("Before forking process PID=%d\n", getpid()); - ATF_REQUIRE((child = fork()) != -1); - if (child == 0) { - printf("Before calling PT_TRACE_ME from child %d\n", getpid()); - FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1); - - printf("Before raising %s from child\n", strsignal(sigval)); - FORKEE_ASSERT(raise(sigval) == 0); - - printf("Before allocating memory for stack in child\n"); - FORKEE_ASSERT((stack = malloc(ssize)) != NULL); - - printf("Before making context for new lwp in child\n"); - _lwp_makecontext(&uc, lwp_main_func, NULL, NULL, stack, ssize); - - printf("Before creating new in child\n"); - FORKEE_ASSERT(_lwp_create(&uc, 0, &lid) == 0); - - printf("Before waiting for lwp %d to exit\n", lid); - FORKEE_ASSERT(_lwp_wait(lid, NULL) == 0); - - printf("Before verifying that reported %d and running lid %d " - "are the same\n", lid, the_lwp_id); - FORKEE_ASSERT_EQ(lid, the_lwp_id); - - printf("Before exiting of the child process\n"); - _exit(exitval); - } - printf("Parent process PID=%d, child's PID=%d\n", getpid(), child); - - printf("Before calling %s() for the child\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_stopped(status, sigval); - - printf("Set empty EVENT_MASK for the child %d\n", child); - event.pe_set_event = PTRACE_LWP_CREATE; - ATF_REQUIRE(ptrace(PT_SET_EVENT_MASK, child, &event, elen) != -1); - - printf("Call GETDBREGS for the child process (r1)\n"); - ATF_REQUIRE(ptrace(PT_GETDBREGS, child, &r1, 0) != -1); - - printf("State of the debug registers (r1):\n"); - for (i = 0; i < __arraycount(r1.dr); i++) - printf("r1[%zu]=%" PRIxREGISTER "\n", i, r1.dr[i]); - - r1.dr[3] = (long)(intptr_t)check_happy; - printf("Set DR3 (r1.dr[3]) to new value %" PRIxREGISTER "\n", - r1.dr[3]); - - printf("New state of the debug registers (r1):\n"); - for (i = 0; i < __arraycount(r1.dr); i++) - printf("r1[%zu]=%" PRIxREGISTER "\n", i, r1.dr[i]); - - printf("Call SETDBREGS for the child process (r1)\n"); - ATF_REQUIRE(ptrace(PT_SETDBREGS, child, &r1, 0) != -1); - - printf("Before resuming the child process where it left off and " - "without signal to be sent\n"); - ATF_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); - - printf("Before calling %s() for the child - expected stopped " - "SIGTRAP\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_stopped(status, SIGTRAP); - - ATF_REQUIRE(ptrace(PT_GET_PROCESS_STATE, child, &state, slen) != -1); - - ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_LWP_CREATE); - - lid = state.pe_lwp; - printf("Reported PTRACE_LWP_CREATE event with lid %d\n", lid); - - printf("Call GETDBREGS for the child process new lwp (r2)\n"); - ATF_REQUIRE(ptrace(PT_GETDBREGS, child, &r2, lid) != -1); - - printf("State of the debug registers (r2):\n"); - for (i = 0; i < __arraycount(r2.dr); i++) - printf("r2[%zu]=%" PRIxREGISTER "\n", i, r2.dr[i]); - - printf("Assert that (r1) and (r2) are not the same\n"); - ATF_REQUIRE(memcmp(&r1, &r2, sizeof(r1)) != 0); - - printf("Before resuming the child process where it left off and " - "without signal to be sent\n"); - ATF_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); - - printf("Before calling %s() for the child - expected exited\n", - TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_exited(status, exitval); - - printf("Before calling %s() for the child - expected no process\n", - TWAIT_FNAME); - TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0)); -} -#endif - -#if defined(HAVE_DBREGS) -ATF_TC(dbregs_dr6_dont_inherit_lwp); -ATF_TC_HEAD(dbregs_dr6_dont_inherit_lwp, tc) -{ - atf_tc_set_md_var(tc, "descr", - "Verify that 1 LWP creation is intercepted by ptrace(2) with " - "EVENT_MASK set to PTRACE_LWP_CREATE and Debug Register 6 from " - "the forker thread is not inherited"); -} - -ATF_TC_BODY(dbregs_dr6_dont_inherit_lwp, tc) -{ - const int exitval = 5; - const int sigval = SIGSTOP; - pid_t child, wpid; -#if defined(TWAIT_HAVE_STATUS) - int status; -#endif - ptrace_state_t state; - const int slen = sizeof(state); - ptrace_event_t event; - const int elen = sizeof(event); - ucontext_t uc; - lwpid_t lid; - static const size_t ssize = 16*1024; - void *stack; - size_t i; - struct dbreg r1; - struct dbreg r2; - - printf("Before forking process PID=%d\n", getpid()); - ATF_REQUIRE((child = fork()) != -1); - if (child == 0) { - printf("Before calling PT_TRACE_ME from child %d\n", getpid()); - FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1); - - printf("Before raising %s from child\n", strsignal(sigval)); - FORKEE_ASSERT(raise(sigval) == 0); - - printf("Before allocating memory for stack in child\n"); - FORKEE_ASSERT((stack = malloc(ssize)) != NULL); - - printf("Before making context for new lwp in child\n"); - _lwp_makecontext(&uc, lwp_main_func, NULL, NULL, stack, ssize); - - printf("Before creating new in child\n"); - FORKEE_ASSERT(_lwp_create(&uc, 0, &lid) == 0); - - printf("Before waiting for lwp %d to exit\n", lid); - FORKEE_ASSERT(_lwp_wait(lid, NULL) == 0); - - printf("Before verifying that reported %d and running lid %d " - "are the same\n", lid, the_lwp_id); - FORKEE_ASSERT_EQ(lid, the_lwp_id); - - printf("Before exiting of the child process\n"); - _exit(exitval); - } - printf("Parent process PID=%d, child's PID=%d\n", getpid(), child); - - printf("Before calling %s() for the child\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_stopped(status, sigval); - - printf("Set empty EVENT_MASK for the child %d\n", child); - event.pe_set_event = PTRACE_LWP_CREATE; - ATF_REQUIRE(ptrace(PT_SET_EVENT_MASK, child, &event, elen) != -1); - - printf("Call GETDBREGS for the child process (r1)\n"); - ATF_REQUIRE(ptrace(PT_GETDBREGS, child, &r1, 0) != -1); - - printf("State of the debug registers (r1):\n"); - for (i = 0; i < __arraycount(r1.dr); i++) - printf("r1[%zu]=%" PRIxREGISTER "\n", i, r1.dr[i]); - - r1.dr[6] = 1; /* breakpoint condition dr0 detected */ - printf("Set DR6 (r1.dr[6]) to new value %" PRIxREGISTER "\n", - r1.dr[6]); - - printf("New state of the debug registers (r1):\n"); - for (i = 0; i < __arraycount(r1.dr); i++) - printf("r1[%zu]=%" PRIxREGISTER "\n", i, r1.dr[i]); - - printf("Call SETDBREGS for the child process (r1)\n"); - ATF_REQUIRE(ptrace(PT_SETDBREGS, child, &r1, 0) != -1); - - printf("Before resuming the child process where it left off and " - "without signal to be sent\n"); - ATF_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); - - printf("Before calling %s() for the child - expected stopped " - "SIGTRAP\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_stopped(status, SIGTRAP); - - ATF_REQUIRE(ptrace(PT_GET_PROCESS_STATE, child, &state, slen) != -1); - - ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_LWP_CREATE); - - lid = state.pe_lwp; - printf("Reported PTRACE_LWP_CREATE event with lid %d\n", lid); - - printf("Call GETDBREGS for the child process new lwp (r2)\n"); - ATF_REQUIRE(ptrace(PT_GETDBREGS, child, &r2, lid) != -1); - - printf("State of the debug registers (r2):\n"); - for (i = 0; i < __arraycount(r2.dr); i++) - printf("r2[%zu]=%" PRIxREGISTER "\n", i, r2.dr[i]); - - printf("Assert that (r1) and (r2) are not the same\n"); - ATF_REQUIRE(memcmp(&r1, &r2, sizeof(r1)) != 0); - - printf("Before resuming the child process where it left off and " - "without signal to be sent\n"); - ATF_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); - - printf("Before calling %s() for the child - expected exited\n", - TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_exited(status, exitval); - - printf("Before calling %s() for the child - expected no process\n", - TWAIT_FNAME); - TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0)); -} -#endif - -#if defined(HAVE_DBREGS) -ATF_TC(dbregs_dr7_dont_inherit_lwp); -ATF_TC_HEAD(dbregs_dr7_dont_inherit_lwp, tc) -{ - atf_tc_set_md_var(tc, "descr", - "Verify that 1 LWP creation is intercepted by ptrace(2) with " - "EVENT_MASK set to PTRACE_LWP_CREATE and Debug Register 7 from " - "the forker thread is not inherited"); -} - -ATF_TC_BODY(dbregs_dr7_dont_inherit_lwp, tc) -{ - const int exitval = 5; - const int sigval = SIGSTOP; - pid_t child, wpid; -#if defined(TWAIT_HAVE_STATUS) - int status; -#endif - ptrace_state_t state; - const int slen = sizeof(state); - ptrace_event_t event; - const int elen = sizeof(event); - ucontext_t uc; - lwpid_t lid; - static const size_t ssize = 16*1024; - void *stack; - size_t i; - struct dbreg r1; - struct dbreg r2; - - printf("Before forking process PID=%d\n", getpid()); - ATF_REQUIRE((child = fork()) != -1); - if (child == 0) { - printf("Before calling PT_TRACE_ME from child %d\n", getpid()); - FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1); - - printf("Before raising %s from child\n", strsignal(sigval)); - FORKEE_ASSERT(raise(sigval) == 0); - - printf("Before allocating memory for stack in child\n"); - FORKEE_ASSERT((stack = malloc(ssize)) != NULL); - - printf("Before making context for new lwp in child\n"); - _lwp_makecontext(&uc, lwp_main_func, NULL, NULL, stack, ssize); - - printf("Before creating new in child\n"); - FORKEE_ASSERT(_lwp_create(&uc, 0, &lid) == 0); - - printf("Before waiting for lwp %d to exit\n", lid); - FORKEE_ASSERT(_lwp_wait(lid, NULL) == 0); - - printf("Before verifying that reported %d and running lid %d " - "are the same\n", lid, the_lwp_id); - FORKEE_ASSERT_EQ(lid, the_lwp_id); - - printf("Before exiting of the child process\n"); - _exit(exitval); - } - printf("Parent process PID=%d, child's PID=%d\n", getpid(), child); - - printf("Before calling %s() for the child\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_stopped(status, sigval); - - printf("Set empty EVENT_MASK for the child %d\n", child); - event.pe_set_event = PTRACE_LWP_CREATE; - ATF_REQUIRE(ptrace(PT_SET_EVENT_MASK, child, &event, elen) != -1); - - printf("Call GETDBREGS for the child process (r1)\n"); - ATF_REQUIRE(ptrace(PT_GETDBREGS, child, &r1, 0) != -1); - - printf("State of the debug registers (r1):\n"); - for (i = 0; i < __arraycount(r1.dr); i++) - printf("r1[%zu]=%" PRIxREGISTER "\n", i, r1.dr[i]); - - r1.dr[7] = __BIT(16); /* break on data writes dr0 */ - printf("Set DR6 (r1.dr[7]) to new value %" PRIxREGISTER "\n", - r1.dr[7]); - - printf("New state of the debug registers (r1):\n"); - for (i = 0; i < __arraycount(r1.dr); i++) - printf("r1[%zu]=%" PRIxREGISTER "\n", i, r1.dr[i]); - - printf("Call SETDBREGS for the child process (r1)\n"); - ATF_REQUIRE(ptrace(PT_SETDBREGS, child, &r1, 0) != -1); - - printf("Before resuming the child process where it left off and " - "without signal to be sent\n"); - ATF_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); - - printf("Before calling %s() for the child - expected stopped " - "SIGTRAP\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_stopped(status, SIGTRAP); - - ATF_REQUIRE(ptrace(PT_GET_PROCESS_STATE, child, &state, slen) != -1); - - ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_LWP_CREATE); - - lid = state.pe_lwp; - printf("Reported PTRACE_LWP_CREATE event with lid %d\n", lid); - - printf("Call GETDBREGS for the child process new lwp (r2)\n"); - ATF_REQUIRE(ptrace(PT_GETDBREGS, child, &r2, lid) != -1); - - printf("State of the debug registers (r2):\n"); - for (i = 0; i < __arraycount(r2.dr); i++) - printf("r2[%zu]=%" PRIxREGISTER "\n", i, r2.dr[i]); - - printf("Assert that (r1) and (r2) are not the same\n"); - ATF_REQUIRE(memcmp(&r1, &r2, sizeof(r1)) != 0); - - printf("Before resuming the child process where it left off and " - "without signal to be sent\n"); - ATF_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); - - printf("Before calling %s() for the child - expected exited\n", - TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_exited(status, exitval); - - printf("Before calling %s() for the child - expected no process\n", - TWAIT_FNAME); - TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0)); + dbregs_dont_inherit_lwp(3); } -#endif #if defined(HAVE_DBREGS) ATF_TC(dbregs_dr0_dont_inherit_execve); @@ -3102,8 +2498,6 @@ ATF_TP_ADD_TCS(tp) ATF_TP_ADD_TC_HAVE_DBREGS(tp, dbregs_dr1_dont_inherit_lwp); ATF_TP_ADD_TC_HAVE_DBREGS(tp, dbregs_dr2_dont_inherit_lwp); ATF_TP_ADD_TC_HAVE_DBREGS(tp, dbregs_dr3_dont_inherit_lwp); - ATF_TP_ADD_TC_HAVE_DBREGS(tp, dbregs_dr6_dont_inherit_lwp); - ATF_TP_ADD_TC_HAVE_DBREGS(tp, dbregs_dr7_dont_inherit_lwp); ATF_TP_ADD_TC_HAVE_DBREGS(tp, dbregs_dr0_dont_inherit_execve); ATF_TP_ADD_TC_HAVE_DBREGS(tp, dbregs_dr1_dont_inherit_execve); |
