Combine x86 register tests into unified test function
Reduce the code duplication and improve maintainability of x86 register tests by combining all of them to a single base function.
This commit is contained in:
mgorny
parent
adb864df5e
commit
7d1a2cdc58
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@ -1,4 +1,4 @@
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/* $NetBSD: t_ptrace_amd64_wait.h,v 1.11 2019/06/04 12:17:05 mgorny Exp $ */
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/* $NetBSD: t_ptrace_amd64_wait.h,v 1.12 2020/01/08 17:23:15 mgorny Exp $ */
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/*-
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* Copyright (c) 2016, 2017, 2018, 2019 The NetBSD Foundation, Inc.
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@ -111,415 +111,11 @@ ATF_TC_BODY(x86_64_regs1, tc)
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TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
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}
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ATF_TC(x86_64_regs_gp_read);
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ATF_TC_HEAD(x86_64_regs_gp_read, tc)
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{
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atf_tc_set_md_var(tc, "descr",
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"Set general-purpose reg values from debugged program and read "
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"them via PT_GETREGS, comparing values against expected.");
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}
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ATF_TC_BODY(x86_64_regs_gp_read, tc)
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{
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const int exitval = 5;
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pid_t child, wpid;
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#if defined(TWAIT_HAVE_STATUS)
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const int sigval = SIGTRAP;
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int status;
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#endif
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struct reg gpr;
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const uint64_t rax = 0x0001020304050607;
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const uint64_t rbx = 0x1011121314151617;
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const uint64_t rcx = 0x2021222324252627;
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const uint64_t rdx = 0x3031323334353637;
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const uint64_t rsi = 0x4041424344454647;
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const uint64_t rdi = 0x5051525354555657;
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const uint64_t rsp = 0x6061626364656667;
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const uint64_t rbp = 0x7071727374757677;
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DPRINTF("Before forking process PID=%d\n", getpid());
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SYSCALL_REQUIRE((child = fork()) != -1);
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if (child == 0) {
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DPRINTF("Before calling PT_TRACE_ME from child %d\n", getpid());
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FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1);
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DPRINTF("Before running assembly from child\n");
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__asm__ __volatile__(
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/* rbp & rbp are a bit tricky, we must not clobber them */
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"movq %%rsp, %%r8\n\t"
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"movq %%rbp, %%r9\n\t"
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"movq %6, %%rsp\n\t"
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"movq %7, %%rbp\n\t"
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"\n\t"
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"int3\n\t"
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"\n\t"
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"movq %%r8, %%rsp\n\t"
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"movq %%r9, %%rbp\n\t"
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:
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: "a"(rax), "b"(rbx), "c"(rcx), "d"(rdx), "S"(rsi), "D"(rdi),
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"i"(rsp), "i"(rbp)
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: "%r8", "%r9"
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);
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DPRINTF("Before exiting of the child process\n");
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_exit(exitval);
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}
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DPRINTF("Parent process PID=%d, child's PID=%d\n", getpid(), child);
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DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
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TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
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validate_status_stopped(status, sigval);
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DPRINTF("Call GETREGS for the child process\n");
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SYSCALL_REQUIRE(ptrace(PT_GETREGS, child, &gpr, 0) != -1);
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ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_RAX], rax);
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ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_RBX], rbx);
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ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_RCX], rcx);
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ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_RDX], rdx);
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ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_RSI], rsi);
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ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_RDI], rdi);
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ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_RSP], rsp);
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ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_RBP], rbp);
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DPRINTF("Before resuming the child process where it left off and "
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"without signal to be sent\n");
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SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1);
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DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
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TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
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validate_status_exited(status, exitval);
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DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
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TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
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}
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ATF_TC(x86_64_regs_gp_write);
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ATF_TC_HEAD(x86_64_regs_gp_write, tc)
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{
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atf_tc_set_md_var(tc, "descr",
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"Set general-purpose reg values into a debugged program via "
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"PT_SETREGS and compare the result against expected.");
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}
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ATF_TC_BODY(x86_64_regs_gp_write, tc)
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{
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const int exitval = 5;
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pid_t child, wpid;
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#if defined(TWAIT_HAVE_STATUS)
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const int sigval = SIGTRAP;
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int status;
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#endif
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struct reg gpr;
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const uint64_t rax = 0x0001020304050607;
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const uint64_t rbx = 0x1011121314151617;
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const uint64_t rcx = 0x2021222324252627;
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const uint64_t rdx = 0x3031323334353637;
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const uint64_t rsi = 0x4041424344454647;
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const uint64_t rdi = 0x5051525354555657;
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const uint64_t rsp = 0x6061626364656667;
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const uint64_t rbp = 0x7071727374757677;
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DPRINTF("Before forking process PID=%d\n", getpid());
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SYSCALL_REQUIRE((child = fork()) != -1);
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if (child == 0) {
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const uint64_t fill = 0x0F0F0F0F0F0F0F0F;
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uint64_t v_rax, v_rbx, v_rcx, v_rdx, v_rsi, v_rdi, v_rsp, v_rbp;
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DPRINTF("Before calling PT_TRACE_ME from child %d\n", getpid());
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FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1);
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DPRINTF("Before running assembly from child\n");
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__asm__ __volatile__(
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/* save rsp & rbp */
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"movq %%rsp, %4\n\t"
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"movq %%rbp, %5\n\t"
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"\n\t"
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/* fill registers with clobber pattern */
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"movq %8, %%rax\n\t"
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"movq %8, %%rbx\n\t"
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"movq %8, %%rcx\n\t"
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"movq %8, %%rdx\n\t"
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"movq %8, %%rsp\n\t"
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"movq %8, %%rbp\n\t"
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"movq %8, %%rsi\n\t"
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"movq %8, %%rdi\n\t"
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"\n\t"
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"int3\n\t"
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"\n\t"
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/* swap saved & current rsp & rbp */
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"xchgq %%rsp, %4\n\t"
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"xchgq %%rbp, %5\n\t"
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: "=a"(v_rax), "=b"(v_rbx), "=c"(v_rcx), "=d"(v_rdx), "=r"(v_rsp),
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"=r"(v_rbp), "=S"(v_rsi), "=D"(v_rdi)
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: "g"(fill)
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:
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);
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DPRINTF("Before comparing results\n");
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FORKEE_ASSERT_EQ(v_rax, rax);
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FORKEE_ASSERT_EQ(v_rbx, rbx);
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FORKEE_ASSERT_EQ(v_rcx, rcx);
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FORKEE_ASSERT_EQ(v_rdx, rdx);
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FORKEE_ASSERT_EQ(v_rsi, rsi);
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FORKEE_ASSERT_EQ(v_rdi, rdi);
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FORKEE_ASSERT_EQ(v_rsp, rsp);
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FORKEE_ASSERT_EQ(v_rbp, rbp);
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DPRINTF("Before exiting of the child process\n");
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_exit(exitval);
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}
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DPRINTF("Parent process PID=%d, child's PID=%d\n", getpid(), child);
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DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
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TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
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validate_status_stopped(status, sigval);
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DPRINTF("Call GETREGS for the child process\n");
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SYSCALL_REQUIRE(ptrace(PT_GETREGS, child, &gpr, 0) != -1);
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gpr.regs[_REG_RAX] = rax;
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gpr.regs[_REG_RBX] = rbx;
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gpr.regs[_REG_RCX] = rcx;
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gpr.regs[_REG_RDX] = rdx;
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gpr.regs[_REG_RSI] = rsi;
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gpr.regs[_REG_RDI] = rdi;
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gpr.regs[_REG_RSP] = rsp;
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gpr.regs[_REG_RBP] = rbp;
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DPRINTF("Call SETREGS for the child process\n");
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SYSCALL_REQUIRE(ptrace(PT_SETREGS, child, &gpr, 0) != -1);
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DPRINTF("Before resuming the child process where it left off and "
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"without signal to be sent\n");
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SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1);
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DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
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TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
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validate_status_exited(status, exitval);
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DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
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TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
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}
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ATF_TC(x86_64_regs_r8_read);
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ATF_TC_HEAD(x86_64_regs_r8_read, tc)
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{
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atf_tc_set_md_var(tc, "descr",
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"Set r8..r15 reg values from debugged program and read "
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"them via PT_GETREGS, comparing values against expected.");
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}
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ATF_TC_BODY(x86_64_regs_r8_read, tc)
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{
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const int exitval = 5;
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pid_t child, wpid;
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#if defined(TWAIT_HAVE_STATUS)
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const int sigval = SIGTRAP;
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int status;
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#endif
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struct reg gpr;
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const uint64_t r8[] = {
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0x0001020304050607,
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0x1011121314151617,
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0x2021222324252627,
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0x3031323334353637,
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0x4041424344454647,
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0x5051525354555657,
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0x6061626364656667,
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0x7071727374757677,
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};
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DPRINTF("Before forking process PID=%d\n", getpid());
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SYSCALL_REQUIRE((child = fork()) != -1);
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if (child == 0) {
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DPRINTF("Before calling PT_TRACE_ME from child %d\n", getpid());
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FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1);
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DPRINTF("Before running assembly from child\n");
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__asm__ __volatile__(
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"movq 0x00(%%rbx), %%r8\n\t"
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"movq 0x08(%%rbx), %%r9\n\t"
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"movq 0x10(%%rbx), %%r10\n\t"
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"movq 0x18(%%rbx), %%r11\n\t"
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"movq 0x20(%%rbx), %%r12\n\t"
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"movq 0x28(%%rbx), %%r13\n\t"
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"movq 0x30(%%rbx), %%r14\n\t"
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"movq 0x38(%%rbx), %%r15\n\t"
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"int3\n\t"
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:
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: "b"(r8)
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: "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15"
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);
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DPRINTF("Before exiting of the child process\n");
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_exit(exitval);
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}
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DPRINTF("Parent process PID=%d, child's PID=%d\n", getpid(), child);
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DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
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TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
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validate_status_stopped(status, sigval);
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DPRINTF("Call GETREGS for the child process\n");
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SYSCALL_REQUIRE(ptrace(PT_GETREGS, child, &gpr, 0) != -1);
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ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_R8], r8[0]);
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ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_R9], r8[1]);
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ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_R10], r8[2]);
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ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_R11], r8[3]);
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ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_R12], r8[4]);
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ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_R13], r8[5]);
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ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_R14], r8[6]);
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ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_R15], r8[7]);
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DPRINTF("Before resuming the child process where it left off and "
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"without signal to be sent\n");
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SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1);
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DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
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TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
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validate_status_exited(status, exitval);
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DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
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TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
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}
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ATF_TC(x86_64_regs_r8_write);
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ATF_TC_HEAD(x86_64_regs_r8_write, tc)
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{
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atf_tc_set_md_var(tc, "descr",
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"Set r8..r15 reg values into a debugged program via "
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"PT_SETREGS and compare the result against expected.");
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}
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ATF_TC_BODY(x86_64_regs_r8_write, tc)
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{
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const int exitval = 5;
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pid_t child, wpid;
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#if defined(TWAIT_HAVE_STATUS)
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const int sigval = SIGTRAP;
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int status;
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#endif
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struct reg gpr;
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const uint64_t r8[] = {
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0x0001020304050607,
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0x1011121314151617,
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0x2021222324252627,
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0x3031323334353637,
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0x4041424344454647,
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0x5051525354555657,
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0x6061626364656667,
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0x7071727374757677,
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};
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DPRINTF("Before forking process PID=%d\n", getpid());
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SYSCALL_REQUIRE((child = fork()) != -1);
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if (child == 0) {
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const uint64_t fill = 0x0F0F0F0F0F0F0F0F;
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uint64_t v_r8[8];
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DPRINTF("Before calling PT_TRACE_ME from child %d\n", getpid());
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FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1);
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DPRINTF("Before running assembly from child\n");
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__asm__ __volatile__(
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/* fill registers with clobber pattern */
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"movq %1, %%r8\n\t"
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"movq %1, %%r9\n\t"
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"movq %1, %%r10\n\t"
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"movq %1, %%r11\n\t"
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"movq %1, %%r12\n\t"
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"movq %1, %%r13\n\t"
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"movq %1, %%r14\n\t"
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"movq %1, %%r15\n\t"
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"\n\t"
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"int3\n\t"
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"\n\t"
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"movq %%r8, 0x00(%0)\n\t"
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"movq %%r9, 0x08(%0)\n\t"
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"movq %%r10, 0x10(%0)\n\t"
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"movq %%r11, 0x18(%0)\n\t"
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"movq %%r12, 0x20(%0)\n\t"
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"movq %%r13, 0x28(%0)\n\t"
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"movq %%r14, 0x30(%0)\n\t"
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"movq %%r15, 0x38(%0)\n\t"
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:
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: "a"(v_r8), "m"(fill)
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: "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15"
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);
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DPRINTF("Before comparing results\n");
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FORKEE_ASSERT_EQ(v_r8[0], r8[0]);
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FORKEE_ASSERT_EQ(v_r8[1], r8[1]);
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FORKEE_ASSERT_EQ(v_r8[2], r8[2]);
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FORKEE_ASSERT_EQ(v_r8[3], r8[3]);
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FORKEE_ASSERT_EQ(v_r8[4], r8[4]);
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FORKEE_ASSERT_EQ(v_r8[5], r8[5]);
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FORKEE_ASSERT_EQ(v_r8[6], r8[6]);
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FORKEE_ASSERT_EQ(v_r8[7], r8[7]);
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DPRINTF("Before exiting of the child process\n");
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_exit(exitval);
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}
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DPRINTF("Parent process PID=%d, child's PID=%d\n", getpid(), child);
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DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
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TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
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validate_status_stopped(status, sigval);
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DPRINTF("Call GETREGS for the child process\n");
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SYSCALL_REQUIRE(ptrace(PT_GETREGS, child, &gpr, 0) != -1);
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|
||||
gpr.regs[_REG_R8] = r8[0];
|
||||
gpr.regs[_REG_R9] = r8[1];
|
||||
gpr.regs[_REG_R10] = r8[2];
|
||||
gpr.regs[_REG_R11] = r8[3];
|
||||
gpr.regs[_REG_R12] = r8[4];
|
||||
gpr.regs[_REG_R13] = r8[5];
|
||||
gpr.regs[_REG_R14] = r8[6];
|
||||
gpr.regs[_REG_R15] = r8[7];
|
||||
|
||||
DPRINTF("Call SETREGS for the child process\n");
|
||||
SYSCALL_REQUIRE(ptrace(PT_SETREGS, child, &gpr, 0) != -1);
|
||||
|
||||
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_AMD64() \
|
||||
ATF_TP_ADD_TC_HAVE_GPREGS(tp, x86_64_regs1); \
|
||||
ATF_TP_ADD_TC_HAVE_GPREGS(tp, x86_64_regs_gp_read); \
|
||||
ATF_TP_ADD_TC_HAVE_GPREGS(tp, x86_64_regs_gp_write); \
|
||||
ATF_TP_ADD_TC_HAVE_GPREGS(tp, x86_64_regs_r8_read); \
|
||||
ATF_TP_ADD_TC_HAVE_GPREGS(tp, x86_64_regs_r8_write);
|
||||
ATF_TP_ADD_TC_HAVE_GPREGS(tp, x86_64_regs1);
|
||||
#else
|
||||
#define ATF_TP_ADD_TCS_PTRACE_WAIT_AMD64()
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: t_ptrace_i386_wait.h,v 1.9 2019/06/04 12:17:05 mgorny Exp $ */
|
||||
/* $NetBSD: t_ptrace_i386_wait.h,v 1.10 2020/01/08 17:23:15 mgorny Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2016, 2017, 2018, 2019 The NetBSD Foundation, Inc.
|
||||
|
|
@ -101,341 +101,8 @@ ATF_TC_BODY(i386_regs1, tc)
|
|||
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;
|
||||
pid_t child, wpid;
|
||||
#if defined(TWAIT_HAVE_STATUS)
|
||||
const int sigval = SIGTRAP;
|
||||
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_gp_write);
|
||||
ATF_TC_HEAD(i386_regs_gp_write, tc)
|
||||
{
|
||||
atf_tc_set_md_var(tc, "descr",
|
||||
"Set general-purpose reg values into a debugged program via "
|
||||
"PT_SETREGS and compare the result against expected.");
|
||||
}
|
||||
|
||||
ATF_TC_BODY(i386_regs_gp_write, tc)
|
||||
{
|
||||
const int exitval = 5;
|
||||
pid_t child, wpid;
|
||||
#if defined(TWAIT_HAVE_STATUS)
|
||||
const int sigval = SIGTRAP;
|
||||
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) {
|
||||
const uint64_t fill = 0x0F0F0F0F;
|
||||
uint32_t v_eax, v_ebx, v_ecx, v_edx, v_esi, v_edi;
|
||||
|
||||
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__(
|
||||
/* fill registers with clobber pattern */
|
||||
"movl %6, %%eax\n\t"
|
||||
"movl %6, %%ebx\n\t"
|
||||
"movl %6, %%ecx\n\t"
|
||||
"movl %6, %%edx\n\t"
|
||||
"movl %6, %%esi\n\t"
|
||||
"movl %6, %%edi\n\t"
|
||||
"\n\t"
|
||||
"int3\n\t"
|
||||
: "=a"(v_eax), "=b"(v_ebx), "=c"(v_ecx), "=d"(v_edx), "=S"(v_esi),
|
||||
"=D"(v_edi)
|
||||
: "g"(fill)
|
||||
:
|
||||
);
|
||||
|
||||
DPRINTF("Before comparing results\n");
|
||||
FORKEE_ASSERT_EQ(v_eax, eax);
|
||||
FORKEE_ASSERT_EQ(v_ebx, ebx);
|
||||
FORKEE_ASSERT_EQ(v_ecx, ecx);
|
||||
FORKEE_ASSERT_EQ(v_edx, edx);
|
||||
FORKEE_ASSERT_EQ(v_esi, esi);
|
||||
FORKEE_ASSERT_EQ(v_edi, 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);
|
||||
|
||||
gpr.r_eax = eax;
|
||||
gpr.r_ebx = ebx;
|
||||
gpr.r_ecx = ecx;
|
||||
gpr.r_edx = edx;
|
||||
gpr.r_esi = esi;
|
||||
gpr.r_edi = edi;
|
||||
|
||||
DPRINTF("Call SETREGS for the child process\n");
|
||||
SYSCALL_REQUIRE(ptrace(PT_SETREGS, child, &gpr, 0) != -1);
|
||||
|
||||
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;
|
||||
pid_t child, wpid;
|
||||
#if defined(TWAIT_HAVE_STATUS)
|
||||
const int sigval = SIGTRAP;
|
||||
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));
|
||||
}
|
||||
|
||||
ATF_TC(i386_regs_ebp_esp_write);
|
||||
ATF_TC_HEAD(i386_regs_ebp_esp_write, tc)
|
||||
{
|
||||
atf_tc_set_md_var(tc, "descr",
|
||||
"Set EBP & ESP reg values into a debugged program via "
|
||||
"PT_SETREGS and compare the result against expected.");
|
||||
}
|
||||
|
||||
ATF_TC_BODY(i386_regs_ebp_esp_write, tc)
|
||||
{
|
||||
const int exitval = 5;
|
||||
pid_t child, wpid;
|
||||
#if defined(TWAIT_HAVE_STATUS)
|
||||
const int sigval = SIGTRAP;
|
||||
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) {
|
||||
const uint64_t fill = 0x0F0F0F0F;
|
||||
uint32_t v_esp, v_ebp;
|
||||
|
||||
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__(
|
||||
/* save original ebp & esp using our output registers */
|
||||
"movl %%esp, %0\n\t"
|
||||
"movl %%ebp, %1\n\t"
|
||||
/* fill them with clobber pattern */
|
||||
"movl %2, %%esp\n\t"
|
||||
"movl %2, %%ebp\n\t"
|
||||
"\n\t"
|
||||
"int3\n\t"
|
||||
"\n\t"
|
||||
/* restore ebp & esp, and save the result */
|
||||
"xchgl %%esp, %0\n\t"
|
||||
"xchgl %%ebp, %1\n\t"
|
||||
: "=r"(v_esp), "=r"(v_ebp)
|
||||
: "g"(fill)
|
||||
:
|
||||
);
|
||||
|
||||
DPRINTF("Before comparing results\n");
|
||||
FORKEE_ASSERT_EQ(v_esp, esp);
|
||||
FORKEE_ASSERT_EQ(v_ebp, ebp);
|
||||
|
||||
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);
|
||||
|
||||
gpr.r_esp = esp;
|
||||
gpr.r_ebp = ebp;
|
||||
|
||||
DPRINTF("Call SETREGS for the child process\n");
|
||||
SYSCALL_REQUIRE(ptrace(PT_SETREGS, child, &gpr, 0) != -1);
|
||||
|
||||
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_regs_gp_read); \
|
||||
ATF_TP_ADD_TC_HAVE_GPREGS(tp, i386_regs_gp_write); \
|
||||
ATF_TP_ADD_TC_HAVE_GPREGS(tp, i386_regs_ebp_esp_read); \
|
||||
ATF_TP_ADD_TC_HAVE_GPREGS(tp, i386_regs_ebp_esp_write);
|
||||
ATF_TP_ADD_TC_HAVE_GPREGS(tp, i386_regs1);
|
||||
#else
|
||||
#define ATF_TP_ADD_TCS_PTRACE_WAIT_I386()
|
||||
#endif
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load Diff
Loading…
Reference in New Issue