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[src/trunk]: src/tests/lib/libc/sys Combine x86 register tests into unified t...
details: https://anonhg.NetBSD.org/src/rev/2e6d17a2d552
branches: trunk
changeset: 466991:2e6d17a2d552
user: mgorny <mgorny%NetBSD.org@localhost>
date: Wed Jan 08 17:23:15 2020 +0000
description:
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.
diffstat:
tests/lib/libc/sys/t_ptrace_amd64_wait.h | 408 +-----
tests/lib/libc/sys/t_ptrace_i386_wait.h | 337 +----
tests/lib/libc/sys/t_ptrace_x86_wait.h | 2419 +++++++++++++----------------
3 files changed, 1106 insertions(+), 2058 deletions(-)
diffs (truncated from 3327 to 300 lines):
diff -r f1d1bdc69e35 -r 2e6d17a2d552 tests/lib/libc/sys/t_ptrace_amd64_wait.h
--- a/tests/lib/libc/sys/t_ptrace_amd64_wait.h Wed Jan 08 17:22:40 2020 +0000
+++ b/tests/lib/libc/sys/t_ptrace_amd64_wait.h Wed Jan 08 17:23:15 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: t_ptrace_amd64_wait.h,v 1.11 2019/06/04 12:17:05 mgorny Exp $ */
+/* $NetBSD: t_ptrace_amd64_wait.h,v 1.12 2020/01/08 17:23:15 mgorny Exp $ */
/*-
* Copyright (c) 2016, 2017, 2018, 2019 The NetBSD Foundation, Inc.
@@ -111,415 +111,11 @@
TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
}
-ATF_TC(x86_64_regs_gp_read);
-ATF_TC_HEAD(x86_64_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(x86_64_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 uint64_t rax = 0x0001020304050607;
- const uint64_t rbx = 0x1011121314151617;
- const uint64_t rcx = 0x2021222324252627;
- const uint64_t rdx = 0x3031323334353637;
- const uint64_t rsi = 0x4041424344454647;
- const uint64_t rdi = 0x5051525354555657;
- const uint64_t rsp = 0x6061626364656667;
- const uint64_t rbp = 0x7071727374757677;
-
- 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__(
- /* rbp & rbp are a bit tricky, we must not clobber them */
- "movq %%rsp, %%r8\n\t"
- "movq %%rbp, %%r9\n\t"
- "movq %6, %%rsp\n\t"
- "movq %7, %%rbp\n\t"
- "\n\t"
- "int3\n\t"
- "\n\t"
- "movq %%r8, %%rsp\n\t"
- "movq %%r9, %%rbp\n\t"
- :
- : "a"(rax), "b"(rbx), "c"(rcx), "d"(rdx), "S"(rsi), "D"(rdi),
- "i"(rsp), "i"(rbp)
- : "%r8", "%r9"
- );
-
- 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((uint64_t)gpr.regs[_REG_RAX], rax);
- ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_RBX], rbx);
- ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_RCX], rcx);
- ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_RDX], rdx);
- ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_RSI], rsi);
- ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_RDI], rdi);
- ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_RSP], rsp);
- ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_RBP], rbp);
-
- 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(x86_64_regs_gp_write);
-ATF_TC_HEAD(x86_64_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(x86_64_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 uint64_t rax = 0x0001020304050607;
- const uint64_t rbx = 0x1011121314151617;
- const uint64_t rcx = 0x2021222324252627;
- const uint64_t rdx = 0x3031323334353637;
- const uint64_t rsi = 0x4041424344454647;
- const uint64_t rdi = 0x5051525354555657;
- const uint64_t rsp = 0x6061626364656667;
- const uint64_t rbp = 0x7071727374757677;
-
- DPRINTF("Before forking process PID=%d\n", getpid());
- SYSCALL_REQUIRE((child = fork()) != -1);
- if (child == 0) {
- const uint64_t fill = 0x0F0F0F0F0F0F0F0F;
- uint64_t v_rax, v_rbx, v_rcx, v_rdx, v_rsi, v_rdi, v_rsp, v_rbp;
-
- 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 rsp & rbp */
- "movq %%rsp, %4\n\t"
- "movq %%rbp, %5\n\t"
- "\n\t"
- /* fill registers with clobber pattern */
- "movq %8, %%rax\n\t"
- "movq %8, %%rbx\n\t"
- "movq %8, %%rcx\n\t"
- "movq %8, %%rdx\n\t"
- "movq %8, %%rsp\n\t"
- "movq %8, %%rbp\n\t"
- "movq %8, %%rsi\n\t"
- "movq %8, %%rdi\n\t"
- "\n\t"
- "int3\n\t"
- "\n\t"
- /* swap saved & current rsp & rbp */
- "xchgq %%rsp, %4\n\t"
- "xchgq %%rbp, %5\n\t"
- : "=a"(v_rax), "=b"(v_rbx), "=c"(v_rcx), "=d"(v_rdx), "=r"(v_rsp),
- "=r"(v_rbp), "=S"(v_rsi), "=D"(v_rdi)
- : "g"(fill)
- :
- );
-
- DPRINTF("Before comparing results\n");
- FORKEE_ASSERT_EQ(v_rax, rax);
- FORKEE_ASSERT_EQ(v_rbx, rbx);
- FORKEE_ASSERT_EQ(v_rcx, rcx);
- FORKEE_ASSERT_EQ(v_rdx, rdx);
- FORKEE_ASSERT_EQ(v_rsi, rsi);
- FORKEE_ASSERT_EQ(v_rdi, rdi);
- FORKEE_ASSERT_EQ(v_rsp, rsp);
- FORKEE_ASSERT_EQ(v_rbp, rbp);
-
- 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.regs[_REG_RAX] = rax;
- gpr.regs[_REG_RBX] = rbx;
- gpr.regs[_REG_RCX] = rcx;
- gpr.regs[_REG_RDX] = rdx;
- gpr.regs[_REG_RSI] = rsi;
- gpr.regs[_REG_RDI] = rdi;
- gpr.regs[_REG_RSP] = rsp;
- gpr.regs[_REG_RBP] = rbp;
-
- 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(x86_64_regs_r8_read);
-ATF_TC_HEAD(x86_64_regs_r8_read, tc)
-{
- atf_tc_set_md_var(tc, "descr",
- "Set r8..r15 reg values from debugged program and read "
- "them via PT_GETREGS, comparing values against expected.");
-}
-
-ATF_TC_BODY(x86_64_regs_r8_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 uint64_t r8[] = {
- 0x0001020304050607,
- 0x1011121314151617,
- 0x2021222324252627,
- 0x3031323334353637,
- 0x4041424344454647,
- 0x5051525354555657,
- 0x6061626364656667,
- 0x7071727374757677,
- };
-
- 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__(
- "movq 0x00(%%rbx), %%r8\n\t"
- "movq 0x08(%%rbx), %%r9\n\t"
- "movq 0x10(%%rbx), %%r10\n\t"
- "movq 0x18(%%rbx), %%r11\n\t"
- "movq 0x20(%%rbx), %%r12\n\t"
- "movq 0x28(%%rbx), %%r13\n\t"
- "movq 0x30(%%rbx), %%r14\n\t"
- "movq 0x38(%%rbx), %%r15\n\t"
- "int3\n\t"
- :
- : "b"(r8)
- : "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15"
- );
-
- 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((uint64_t)gpr.regs[_REG_R8], r8[0]);
- ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_R9], r8[1]);
- ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_R10], r8[2]);
- ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_R11], r8[3]);
- ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_R12], r8[4]);
- ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_R13], r8[5]);
- ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_R14], r8[6]);
- ATF_CHECK_EQ((uint64_t)gpr.regs[_REG_R15], r8[7]);
-
- 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(x86_64_regs_r8_write);
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