From: Martin Storsjö martin@martin.st
This is essentially about mapping dwarf register numbers to aarch64 registers, and for updating the right CONTEXT variable with the CFA.
Signed-off-by: Martin Storsjö martin@martin.st --- dlls/ntdll/unix/dwarf.h | 164 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 164 insertions(+)
diff --git a/dlls/ntdll/unix/dwarf.h b/dlls/ntdll/unix/dwarf.h index 33cc8315bd6..cae7d6288ee 100644 --- a/dlls/ntdll/unix/dwarf.h +++ b/dlls/ntdll/unix/dwarf.h @@ -377,7 +377,13 @@ enum reg_rule RULE_VAL_EXPRESSION /* value specified by expression */ };
+#ifdef __x86_64__ #define NB_FRAME_REGS 41 +#elif defined(__aarch64__) +#define NB_FRAME_REGS 96 +#else +#error Unsupported architecture +#endif #define MAX_SAVED_STATES 16
struct frame_state @@ -404,11 +410,26 @@ struct frame_info
static const char *dwarf_reg_names[NB_FRAME_REGS] = { +#ifdef __x86_64__ /* 0-7 */ "%rax", "%rdx", "%rcx", "%rbx", "%rsi", "%rdi", "%rbp", "%rsp", /* 8-16 */ "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15", "%rip", /* 17-24 */ "%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "%xmm6", "%xmm7", /* 25-32 */ "%xmm8", "%xmm9", "%xmm10", "%xmm11", "%xmm12", "%xmm13", "%xmm14", "%xmm15", /* 33-40 */ "%st0", "%st1", "%st2", "%st3", "%st4", "%st5", "%st6", "%st7" +#elif defined(__aarch64__) +/* 0-7 */ "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7", +/* 8-15 */ "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15", +/* 16-23 */ "x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23", +/* 24-31 */ "x24", "x25", "x26", "x27", "x28", "x29", "x30", "sp", +/* 32-39 */ "pc", NULL, NULL, NULL, NULL, NULL, NULL, NULL, +/* 40-47 */ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, +/* 48-55 */ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, +/* 56-63 */ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, +/* 64-71 */ "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", +/* 72-79 */ "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15", +/* 80-87 */ "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", +/* 88-95 */ "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31", +#endif };
static BOOL valid_reg( ULONG_PTR reg ) @@ -617,6 +638,7 @@ static void *get_context_reg( CONTEXT *context, ULONG_PTR dw_reg ) { switch (dw_reg) { +#ifdef __x86_64__ case 0: return &context->Rax; case 1: return &context->Rdx; case 2: return &context->Rcx; @@ -658,6 +680,74 @@ static void *get_context_reg( CONTEXT *context, ULONG_PTR dw_reg ) case 38: return &context->u.s.Legacy[5]; case 39: return &context->u.s.Legacy[6]; case 40: return &context->u.s.Legacy[7]; +#elif defined(__aarch64__) + case 0: return &context->u.s.X0; + case 1: return &context->u.s.X1; + case 2: return &context->u.s.X2; + case 3: return &context->u.s.X3; + case 4: return &context->u.s.X4; + case 5: return &context->u.s.X5; + case 6: return &context->u.s.X6; + case 7: return &context->u.s.X7; + case 8: return &context->u.s.X8; + case 9: return &context->u.s.X9; + case 10: return &context->u.s.X10; + case 11: return &context->u.s.X11; + case 12: return &context->u.s.X12; + case 13: return &context->u.s.X13; + case 14: return &context->u.s.X14; + case 15: return &context->u.s.X15; + case 16: return &context->u.s.X16; + case 17: return &context->u.s.X17; + case 18: return &context->u.s.X18; + case 19: return &context->u.s.X19; + case 20: return &context->u.s.X20; + case 21: return &context->u.s.X21; + case 22: return &context->u.s.X22; + case 23: return &context->u.s.X23; + case 24: return &context->u.s.X24; + case 25: return &context->u.s.X25; + case 26: return &context->u.s.X26; + case 27: return &context->u.s.X27; + case 28: return &context->u.s.X28; + case 29: return &context->u.s.Fp; + case 30: return &context->u.s.Lr; + case 31: return &context->Sp; + case 32: return &context->Pc; + case 64: + case 65: + case 66: + case 67: + case 68: + case 69: + case 70: + case 71: + case 72: + case 73: + case 74: + case 75: + case 76: + case 77: + case 78: + case 79: + case 80: + case 81: + case 82: + case 83: + case 84: + case 85: + case 86: + case 87: + case 88: + case 89: + case 90: + case 91: + case 92: + case 93: + case 94: + case 95: + return &context->V[dw_reg - 64]; +#endif default: return NULL; } } @@ -667,6 +757,7 @@ static void set_context_reg( CONTEXT *context, ULONG_PTR dw_reg, void *val ) { switch (dw_reg) { +#ifdef __x86_64__ case 0: context->Rax = *(ULONG64 *)val; break; case 1: context->Rdx = *(ULONG64 *)val; break; case 2: context->Rcx = *(ULONG64 *)val; break; @@ -708,6 +799,75 @@ static void set_context_reg( CONTEXT *context, ULONG_PTR dw_reg, void *val ) case 38: memcpy( &context->u.s.Legacy[5], val, sizeof(M128A) ); break; case 39: memcpy( &context->u.s.Legacy[6], val, sizeof(M128A) ); break; case 40: memcpy( &context->u.s.Legacy[7], val, sizeof(M128A) ); break; +#elif defined(__aarch64__) + case 0: context->u.s.X0 = *(DWORD64 *)val; break; + case 1: context->u.s.X1 = *(DWORD64 *)val; break; + case 2: context->u.s.X2 = *(DWORD64 *)val; break; + case 3: context->u.s.X3 = *(DWORD64 *)val; break; + case 4: context->u.s.X4 = *(DWORD64 *)val; break; + case 5: context->u.s.X5 = *(DWORD64 *)val; break; + case 6: context->u.s.X6 = *(DWORD64 *)val; break; + case 7: context->u.s.X7 = *(DWORD64 *)val; break; + case 8: context->u.s.X8 = *(DWORD64 *)val; break; + case 9: context->u.s.X9 = *(DWORD64 *)val; break; + case 10: context->u.s.X10 = *(DWORD64 *)val; break; + case 11: context->u.s.X11 = *(DWORD64 *)val; break; + case 12: context->u.s.X12 = *(DWORD64 *)val; break; + case 13: context->u.s.X13 = *(DWORD64 *)val; break; + case 14: context->u.s.X14 = *(DWORD64 *)val; break; + case 15: context->u.s.X15 = *(DWORD64 *)val; break; + case 16: context->u.s.X16 = *(DWORD64 *)val; break; + case 17: context->u.s.X17 = *(DWORD64 *)val; break; + case 18: context->u.s.X18 = *(DWORD64 *)val; break; + case 19: context->u.s.X19 = *(DWORD64 *)val; break; + case 20: context->u.s.X20 = *(DWORD64 *)val; break; + case 21: context->u.s.X21 = *(DWORD64 *)val; break; + case 22: context->u.s.X22 = *(DWORD64 *)val; break; + case 23: context->u.s.X23 = *(DWORD64 *)val; break; + case 24: context->u.s.X24 = *(DWORD64 *)val; break; + case 25: context->u.s.X25 = *(DWORD64 *)val; break; + case 26: context->u.s.X26 = *(DWORD64 *)val; break; + case 27: context->u.s.X27 = *(DWORD64 *)val; break; + case 28: context->u.s.X28 = *(DWORD64 *)val; break; + case 29: context->u.s.Fp = *(DWORD64 *)val; break; + case 30: context->u.s.Lr = *(DWORD64 *)val; break; + case 31: context->Sp = *(DWORD64 *)val; break; + case 32: context->Pc = *(DWORD64 *)val; break; + case 64: + case 65: + case 66: + case 67: + case 68: + case 69: + case 70: + case 71: + case 72: + case 73: + case 74: + case 75: + case 76: + case 77: + case 78: + case 79: + case 80: + case 81: + case 82: + case 83: + case 84: + case 85: + case 86: + case 87: + case 88: + case 89: + case 90: + case 91: + case 92: + case 93: + case 94: + case 95: + memcpy( &context->V[dw_reg - 64], val, sizeof(ARM64_NT_NEON128) ); + break; +#endif } }
@@ -842,7 +1002,11 @@ static void apply_frame_state( CONTEXT *context, struct frame_state *state, break; } } +#ifdef __x86_64__ new_context.Rsp = cfa; +#elif defined(__aarch64__) + new_context.Sp = cfa; +#endif *context = new_context; }