diff options
Diffstat (limited to 'tests/lib/libc/sys')
| -rw-r--r-- | tests/lib/libc/sys/t_ptrace_i386_wait.h | 154 |
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 |
