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// This program is used to generate a core dump for testing register dumps.
// The exact set of registers dumped depends on the instruction sets enabled
// via compiler flags.
#include <cstdint>
struct alignas(64) zmm_t {
uint64_t a, b, c, d, e, f, g, h;
};
struct alignas(16) float80_raw {
uint64_t mantissa;
uint16_t sign_exp;
};
int main() {
// test data for xmm, ymm and zmm registers
constexpr zmm_t zmm[] = {
{ 0x0706050403020100, 0x0F0E0D0C0B0A0908,
0x1716151413121110, 0x1F1E1D1C1B1A1918,
0x2726252423222120, 0x2F2E2D2C2B2A2928,
0x3736353433323130, 0x3F3E3D3C3B3A3938, },
{ 0x0807060504030201, 0x100F0E0D0C0B0A09,
0x1817161514131211, 0x201F1E1D1C1B1A19,
0x2827262524232221, 0x302F2E2D2C2B2A29,
0x3837363534333231, 0x403F3E3D3C3B3A39, },
{ 0x0908070605040302, 0x11100F0E0D0C0B0A,
0x1918171615141312, 0x21201F1E1D1C1B1A,
0x2928272625242322, 0x31302F2E2D2C2B2A,
0x3938373635343332, 0x41403F3E3D3C3B3A, },
{ 0x0A09080706050403, 0x1211100F0E0D0C0B,
0x1A19181716151413, 0x2221201F1E1D1C1B,
0x2A29282726252423, 0x3231302F2E2D2C2B,
0x3A39383736353433, 0x4241403F3E3D3C3B, },
{ 0x0B0A090807060504, 0x131211100F0E0D0C,
0x1B1A191817161514, 0x232221201F1E1D1C,
0x2B2A292827262524, 0x333231302F2E2D2C,
0x3B3A393837363534, 0x434241403F3E3D3C, },
{ 0x0C0B0A0908070605, 0x14131211100F0E0D,
0x1C1B1A1918171615, 0x24232221201F1E1D,
0x2C2B2A2928272625, 0x34333231302F2E2D,
0x3C3B3A3938373635, 0x44434241403F3E3D, },
{ 0x0D0C0B0A09080706, 0x1514131211100F0E,
0x1D1C1B1A19181716, 0x2524232221201F1E,
0x2D2C2B2A29282726, 0x3534333231302F2E,
0x3D3C3B3A39383736, 0x4544434241403F3E, },
{ 0x0E0D0C0B0A090807, 0x161514131211100F,
0x1E1D1C1B1A191817, 0x262524232221201F,
0x2E2D2C2B2A292827, 0x363534333231302F,
0x3E3D3C3B3A393837, 0x464544434241403F, },
#if defined(__x86_64__) || defined(_M_X64)
{ 0x0F0E0D0C0B0A0908, 0x1716151413121110,
0x1F1E1D1C1B1A1918, 0x2726252423222120,
0x2F2E2D2C2B2A2928, 0x3736353433323130,
0x3F3E3D3C3B3A3938, 0x4746454443424140, },
{ 0x100F0E0D0C0B0A09, 0x1817161514131211,
0x201F1E1D1C1B1A19, 0x2827262524232221,
0x302F2E2D2C2B2A29, 0x3837363534333231,
0x403F3E3D3C3B3A39, 0x4847464544434241, },
{ 0x11100F0E0D0C0B0A, 0x1918171615141312,
0x21201F1E1D1C1B1A, 0x2928272625242322,
0x31302F2E2D2C2B2A, 0x3938373635343332,
0x41403F3E3D3C3B3A, 0x4948474645444342, },
{ 0x1211100F0E0D0C0B, 0x1A19181716151413,
0x2221201F1E1D1C1B, 0x2A29282726252423,
0x3231302F2E2D2C2B, 0x3A39383736353433,
0x4241403F3E3D3C3B, 0x4A49484746454443, },
{ 0x131211100F0E0D0C, 0x1B1A191817161514,
0x232221201F1E1D1C, 0x2B2A292827262524,
0x333231302F2E2D2C, 0x3B3A393837363534,
0x434241403F3E3D3C, 0x4B4A494847464544, },
{ 0x14131211100F0E0D, 0x1C1B1A1918171615,
0x24232221201F1E1D, 0x2C2B2A2928272625,
0x34333231302F2E2D, 0x3C3B3A3938373635,
0x44434241403F3E3D, 0x4C4B4A4948474645, },
{ 0x1514131211100F0E, 0x1D1C1B1A19181716,
0x2524232221201F1E, 0x2D2C2B2A29282726,
0x3534333231302F2E, 0x3D3C3B3A39383736,
0x4544434241403F3E, 0x4D4C4B4A49484746, },
{ 0x161514131211100F, 0x1E1D1C1B1A191817,
0x262524232221201F, 0x2E2D2C2B2A292827,
0x363534333231302F, 0x3E3D3C3B3A393837,
0x464544434241403F, 0x4E4D4C4B4A494847, },
{ 0x1716151413121110, 0x1F1E1D1C1B1A1918,
0x2726252423222120, 0x2F2E2D2C2B2A2928,
0x3736353433323130, 0x3F3E3D3C3B3A3938,
0x4746454443424140, 0x4F4E4D4C4B4A4948, },
{ 0x1817161514131211, 0x201F1E1D1C1B1A19,
0x2827262524232221, 0x302F2E2D2C2B2A29,
0x3837363534333231, 0x403F3E3D3C3B3A39,
0x4847464544434241, 0x504F4E4D4C4B4A49, },
{ 0x1918171615141312, 0x21201F1E1D1C1B1A,
0x2928272625242322, 0x31302F2E2D2C2B2A,
0x3938373635343332, 0x41403F3E3D3C3B3A,
0x4948474645444342, 0x51504F4E4D4C4B4A, },
{ 0x1A19181716151413, 0x2221201F1E1D1C1B,
0x2A29282726252423, 0x3231302F2E2D2C2B,
0x3A39383736353433, 0x4241403F3E3D3C3B,
0x4A49484746454443, 0x5251504F4E4D4C4B, },
{ 0x1B1A191817161514, 0x232221201F1E1D1C,
0x2B2A292827262524, 0x333231302F2E2D2C,
0x3B3A393837363534, 0x434241403F3E3D3C,
0x4B4A494847464544, 0x535251504F4E4D4C, },
{ 0x1C1B1A1918171615, 0x24232221201F1E1D,
0x2C2B2A2928272625, 0x34333231302F2E2D,
0x3C3B3A3938373635, 0x44434241403F3E3D,
0x4C4B4A4948474645, 0x54535251504F4E4D, },
{ 0x1D1C1B1A19181716, 0x2524232221201F1E,
0x2D2C2B2A29282726, 0x3534333231302F2E,
0x3D3C3B3A39383736, 0x4544434241403F3E,
0x4D4C4B4A49484746, 0x5554535251504F4E, },
{ 0x1E1D1C1B1A191817, 0x262524232221201F,
0x2E2D2C2B2A292827, 0x363534333231302F,
0x3E3D3C3B3A393837, 0x464544434241403F,
0x4E4D4C4B4A494847, 0x565554535251504F, },
{ 0x1F1E1D1C1B1A1918, 0x2726252423222120,
0x2F2E2D2C2B2A2928, 0x3736353433323130,
0x3F3E3D3C3B3A3938, 0x4746454443424140,
0x4F4E4D4C4B4A4948, 0x5756555453525150, },
{ 0x201F1E1D1C1B1A19, 0x2827262524232221,
0x302F2E2D2C2B2A29, 0x3837363534333231,
0x403F3E3D3C3B3A39, 0x4847464544434241,
0x504F4E4D4C4B4A49, 0x5857565554535251, },
{ 0x21201F1E1D1C1B1A, 0x2928272625242322,
0x31302F2E2D2C2B2A, 0x3938373635343332,
0x41403F3E3D3C3B3A, 0x4948474645444342,
0x51504F4E4D4C4B4A, 0x5958575655545352, },
{ 0x2221201F1E1D1C1B, 0x2A29282726252423,
0x3231302F2E2D2C2B, 0x3A39383736353433,
0x4241403F3E3D3C3B, 0x4A49484746454443,
0x5251504F4E4D4C4B, 0x5A59585756555453, },
{ 0x232221201F1E1D1C, 0x2B2A292827262524,
0x333231302F2E2D2C, 0x3B3A393837363534,
0x434241403F3E3D3C, 0x4B4A494847464544,
0x535251504F4E4D4C, 0x5B5A595857565554, },
{ 0x24232221201F1E1D, 0x2C2B2A2928272625,
0x34333231302F2E2D, 0x3C3B3A3938373635,
0x44434241403F3E3D, 0x4C4B4A4948474645,
0x54535251504F4E4D, 0x5C5B5A5958575655, },
{ 0x2524232221201F1E, 0x2D2C2B2A29282726,
0x3534333231302F2E, 0x3D3C3B3A39383736,
0x4544434241403F3E, 0x4D4C4B4A49484746,
0x5554535251504F4E, 0x5D5C5B5A59585756, },
{ 0x262524232221201F, 0x2E2D2C2B2A292827,
0x363534333231302F, 0x3E3D3C3B3A393837,
0x464544434241403F, 0x4E4D4C4B4A494847,
0x565554535251504F, 0x5E5D5C5B5A595857, },
#endif
};
// test data for FPU registers
float80_raw st[] = {
{0x8000000000000000, 0x4000}, // +2.0
{0x3f00000000000000, 0x0000}, // 1.654785e-4932 (denormal)
{0x0000000000000000, 0x0000}, // +0
{0x0000000000000000, 0x8000}, // -0
{0x8000000000000000, 0x7fff}, // +inf
{0x8000000000000000, 0xffff}, // -inf
{0xc000000000000000, 0xffff}, // nan
// st7 will be freed to test tag word better
{0x0000000000000000, 0x0000}, // +0
};
// unmask divide-by-zero exception
uint16_t cw = 0x037b;
// used as single-precision float
uint32_t zero = 0;
// test data for GP registers
const uint64_t gpr[] = {
0x2726252423222120,
0x2827262524232221,
0x2928272625242322,
0x2A29282726252423,
0x2B2A292827262524,
0x2C2B2A2928272625,
0x2D2C2B2A29282726,
0x2E2D2C2B2A292827,
0x2F2E2D2C2B2A2928,
0x302F2E2D2C2B2A29,
0x31302F2E2D2C2B2A,
0x3231302F2E2D2C2B,
0x333231302F2E2D2C,
0x34333231302F2E2D,
0x3534333231302F2E,
0x363534333231302F,
};
asm volatile(
// fill the highest register set supported -- ZMM, YMM or XMM
#if defined(__AVX512F__)
"vmovaps 0x000(%0), %%zmm0\n\t"
"vmovaps 0x040(%0), %%zmm1\n\t"
"vmovaps 0x080(%0), %%zmm2\n\t"
"vmovaps 0x0C0(%0), %%zmm3\n\t"
"vmovaps 0x100(%0), %%zmm4\n\t"
"vmovaps 0x140(%0), %%zmm5\n\t"
"vmovaps 0x180(%0), %%zmm6\n\t"
"vmovaps 0x1C0(%0), %%zmm7\n\t"
#if defined(__x86_64__) || defined(_M_X64)
"vmovaps 0x200(%0), %%zmm8\n\t"
"vmovaps 0x240(%0), %%zmm9\n\t"
"vmovaps 0x280(%0), %%zmm10\n\t"
"vmovaps 0x2C0(%0), %%zmm11\n\t"
"vmovaps 0x300(%0), %%zmm12\n\t"
"vmovaps 0x340(%0), %%zmm13\n\t"
"vmovaps 0x380(%0), %%zmm14\n\t"
"vmovaps 0x3C0(%0), %%zmm15\n\t"
"vmovaps 0x400(%0), %%zmm16\n\t"
"vmovaps 0x440(%0), %%zmm17\n\t"
"vmovaps 0x480(%0), %%zmm18\n\t"
"vmovaps 0x4C0(%0), %%zmm19\n\t"
"vmovaps 0x500(%0), %%zmm20\n\t"
"vmovaps 0x540(%0), %%zmm21\n\t"
"vmovaps 0x580(%0), %%zmm22\n\t"
"vmovaps 0x5C0(%0), %%zmm23\n\t"
"vmovaps 0x600(%0), %%zmm24\n\t"
"vmovaps 0x640(%0), %%zmm25\n\t"
"vmovaps 0x680(%0), %%zmm26\n\t"
"vmovaps 0x6C0(%0), %%zmm27\n\t"
"vmovaps 0x700(%0), %%zmm28\n\t"
"vmovaps 0x740(%0), %%zmm29\n\t"
"vmovaps 0x780(%0), %%zmm30\n\t"
"vmovaps 0x7C0(%0), %%zmm31\n\t"
#endif // defined(__x86_64__) || defined(_M_X64)
#elif defined(__AVX__)
"vmovaps 0x000(%0), %%ymm0\n\t"
"vmovaps 0x040(%0), %%ymm1\n\t"
"vmovaps 0x080(%0), %%ymm2\n\t"
"vmovaps 0x0C0(%0), %%ymm3\n\t"
"vmovaps 0x100(%0), %%ymm4\n\t"
"vmovaps 0x140(%0), %%ymm5\n\t"
"vmovaps 0x180(%0), %%ymm6\n\t"
"vmovaps 0x1C0(%0), %%ymm7\n\t"
#if defined(__x86_64__) || defined(_M_X64)
"vmovaps 0x200(%0), %%ymm8\n\t"
"vmovaps 0x240(%0), %%ymm9\n\t"
"vmovaps 0x280(%0), %%ymm10\n\t"
"vmovaps 0x2C0(%0), %%ymm11\n\t"
"vmovaps 0x300(%0), %%ymm12\n\t"
"vmovaps 0x340(%0), %%ymm13\n\t"
"vmovaps 0x380(%0), %%ymm14\n\t"
"vmovaps 0x3C0(%0), %%ymm15\n\t"
#endif // defined(__x86_64__) || defined(_M_X64)
#else // !defined(__AVX__)
"movaps 0x000(%0), %%xmm0\n\t"
"movaps 0x040(%0), %%xmm1\n\t"
"movaps 0x080(%0), %%xmm2\n\t"
"movaps 0x0C0(%0), %%xmm3\n\t"
"movaps 0x100(%0), %%xmm4\n\t"
"movaps 0x140(%0), %%xmm5\n\t"
"movaps 0x180(%0), %%xmm6\n\t"
"movaps 0x1C0(%0), %%xmm7\n\t"
#if defined(__x86_64__) || defined(_M_X64)
"movaps 0x200(%0), %%xmm8\n\t"
"movaps 0x240(%0), %%xmm9\n\t"
"movaps 0x280(%0), %%xmm10\n\t"
"movaps 0x2C0(%0), %%xmm11\n\t"
"movaps 0x300(%0), %%xmm12\n\t"
"movaps 0x340(%0), %%xmm13\n\t"
"movaps 0x380(%0), %%xmm14\n\t"
"movaps 0x3C0(%0), %%xmm15\n\t"
#endif // defined(__x86_64__) || defined(_M_X64)
#endif
"\n\t"
// fill FPU registers
"finit\n\t"
"fldcw %2\n\t"
// load on stack in reverse order to make the result easier to read
"fldt 0x70(%1)\n\t"
"fldt 0x60(%1)\n\t"
"fldt 0x50(%1)\n\t"
"fldt 0x40(%1)\n\t"
"fldt 0x30(%1)\n\t"
"fldt 0x20(%1)\n\t"
"fldt 0x10(%1)\n\t"
"fldt 0x00(%1)\n\t"
// free st7
"ffree %%st(7)\n\t"
// this should trigger a divide-by-zero
"fdivs (%3)\n\t"
"\n\t"
// fill GP registers
// note that this invalidates all parameters
#if defined(__x86_64__) || defined(_M_X64)
"movq 0x78(%4), %%r15\n\t"
"movq 0x70(%4), %%r14\n\t"
"movq 0x68(%4), %%r13\n\t"
"movq 0x60(%4), %%r12\n\t"
"movq 0x58(%4), %%r11\n\t"
"movq 0x50(%4), %%r10\n\t"
"movq 0x48(%4), %%r9\n\t"
"movq 0x40(%4), %%r8\n\t"
"movq 0x38(%4), %%rdi\n\t"
"movq 0x30(%4), %%rsi\n\t"
"movq 0x28(%4), %%rbp\n\t"
"movq 0x20(%4), %%rsp\n\t"
"movq 0x18(%4), %%rdx\n\t"
"movq 0x10(%4), %%rcx\n\t"
"movq 0x08(%4), %%rbx\n\t"
"movq 0x00(%4), %%rax\n\t"
#else // !(defined(__x86_64__) || defined(_M_X64))
"movl 0x38(%4), %%edi\n\t"
"movl 0x30(%4), %%esi\n\t"
"movl 0x28(%4), %%ebp\n\t"
"movl 0x20(%4), %%esp\n\t"
"movl 0x18(%4), %%edx\n\t"
"movl 0x10(%4), %%ecx\n\t"
"movl 0x08(%4), %%ebx\n\t"
"movl 0x00(%4), %%eax\n\t"
#endif
"\n\t"
// trigger SEGV
"movl %%eax, 0\n\t"
:
: "b"(zmm), "c"(st), "m"(cw), "d"(&zero), "a"(gpr)
: // clobbers do not really matter since we crash
);
return 0;
}
|
