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/* This test used to cause an assertion in the address space manager */
__attribute__((noinline))
static void inner(void)
{
/* Set registers to apriori known values. */
__asm__ __volatile__(
"movq $0x101, %%rax\n"
"movq $0x102, %%rbx\n"
"movq $0x103, %%rcx\n"
"movq $0x104, %%rdx\n"
"movq $0x105, %%rsi\n"
"movq $0x106, %%rdi\n"
"movq $0x107, %%r8\n"
"movq $0x108, %%r9\n"
"movq $0x109, %%r10\n"
"movq $0x10a, %%r11\n"
"movq $0x10b, %%r12\n"
"movq $0x10c, %%r13\n"
"movq $0x10d, %%r14\n"
"movq $0x10e, %%r15\n"
// not %rbp as mdb is then not able to reconstruct stack trace
// Do change %rsp (to test a bogus stack pointer),
// but don't add %rsp to the clobber list since gcc ignores it
// and since gcc >= 9.0 errors about it
// see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52813
"movq $0x10f, %%rsp\n"
"movq $0x1234, (%%rax)\n" // should cause SEGV here
"ud2" // should never get here
: // no output registers
: // no input registers
: "memory", "%rax", "%rbx", "%rcx", "%rdx", "%rsi", "%rdi",
"%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15");
}
__attribute__((noinline))
static void outer(void)
{
inner();
}
int main(int argc, const char *argv[])
{
outer();
return 0;
}
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