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289 lines
9 KiB
C
289 lines
9 KiB
C
/*
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* File cpu_arm64.c
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*
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* Copyright (C) 2009 Eric Pouech
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* Copyright (C) 2010-2013 André Hentschel
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <assert.h>
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#define NONAMELESSUNION
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#define NONAMELESSSTRUCT
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "dbghelp_private.h"
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#include "winternl.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
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static BOOL arm64_get_addr(HANDLE hThread, const CONTEXT* ctx,
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enum cpu_addr ca, ADDRESS64* addr)
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{
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addr->Mode = AddrModeFlat;
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addr->Segment = 0; /* don't need segment */
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switch (ca)
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{
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#ifdef __aarch64__
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case cpu_addr_pc: addr->Offset = ctx->Pc; return TRUE;
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case cpu_addr_stack: addr->Offset = ctx->Sp; return TRUE;
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case cpu_addr_frame: addr->Offset = ctx->u.s.Fp; return TRUE;
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#endif
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default: addr->Mode = -1;
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return FALSE;
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}
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}
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#ifdef __aarch64__
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enum st_mode {stm_start, stm_arm64, stm_done};
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/* indexes in Reserved array */
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#define __CurrentModeCount 0
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#define curr_mode (frame->Reserved[__CurrentModeCount] & 0x0F)
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#define curr_count (frame->Reserved[__CurrentModeCount] >> 4)
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#define set_curr_mode(m) {frame->Reserved[__CurrentModeCount] &= ~0x0F; frame->Reserved[__CurrentModeCount] |= (m & 0x0F);}
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#define inc_curr_count() (frame->Reserved[__CurrentModeCount] += 0x10)
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/* fetch_next_frame()
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*
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* modify (at least) context.Pc using unwind information
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* either out of debug info (dwarf), or simple Lr trace
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*/
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static BOOL fetch_next_frame(struct cpu_stack_walk* csw,
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CONTEXT* context, DWORD_PTR curr_pc)
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{
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DWORD_PTR xframe;
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DWORD_PTR oldReturn = context->u.s.Lr;
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if (dwarf2_virtual_unwind(csw, curr_pc, context, &xframe))
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{
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context->Sp = xframe;
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context->Pc = oldReturn;
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return TRUE;
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}
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if (context->Pc == context->u.s.Lr) return FALSE;
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context->Pc = oldReturn;
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return TRUE;
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}
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static BOOL arm64_stack_walk(struct cpu_stack_walk* csw, LPSTACKFRAME64 frame, CONTEXT* context)
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{
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unsigned deltapc = curr_count <= 1 ? 0 : 4;
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/* sanity check */
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if (curr_mode >= stm_done) return FALSE;
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TRACE("Enter: PC=%s Frame=%s Return=%s Stack=%s Mode=%s Count=%s\n",
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wine_dbgstr_addr(&frame->AddrPC),
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wine_dbgstr_addr(&frame->AddrFrame),
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wine_dbgstr_addr(&frame->AddrReturn),
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wine_dbgstr_addr(&frame->AddrStack),
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curr_mode == stm_start ? "start" : "ARM64",
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wine_dbgstr_longlong(curr_count));
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if (curr_mode == stm_start)
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{
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/* Init done */
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set_curr_mode(stm_arm64);
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frame->AddrReturn.Mode = frame->AddrStack.Mode = AddrModeFlat;
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/* don't set up AddrStack on first call. Either the caller has set it up, or
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* we will get it in the next frame
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*/
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memset(&frame->AddrBStore, 0, sizeof(frame->AddrBStore));
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}
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else
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{
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if (context->Sp != frame->AddrStack.Offset) FIXME("inconsistent Stack Pointer\n");
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if (context->Pc != frame->AddrPC.Offset) FIXME("inconsistent Program Counter\n");
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if (frame->AddrReturn.Offset == 0) goto done_err;
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if (!fetch_next_frame(csw, context, frame->AddrPC.Offset - deltapc))
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goto done_err;
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}
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memset(&frame->Params, 0, sizeof(frame->Params));
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/* set frame information */
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frame->AddrStack.Offset = context->Sp;
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frame->AddrReturn.Offset = context->u.s.Lr;
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frame->AddrFrame.Offset = context->u.s.Fp;
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frame->AddrPC.Offset = context->Pc;
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frame->Far = TRUE;
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frame->Virtual = TRUE;
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inc_curr_count();
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TRACE("Leave: PC=%s Frame=%s Return=%s Stack=%s Mode=%s Count=%s FuncTable=%p\n",
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wine_dbgstr_addr(&frame->AddrPC),
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wine_dbgstr_addr(&frame->AddrFrame),
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wine_dbgstr_addr(&frame->AddrReturn),
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wine_dbgstr_addr(&frame->AddrStack),
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curr_mode == stm_start ? "start" : "ARM64",
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wine_dbgstr_longlong(curr_count),
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frame->FuncTableEntry);
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return TRUE;
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done_err:
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set_curr_mode(stm_done);
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return FALSE;
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}
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#else
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static BOOL arm64_stack_walk(struct cpu_stack_walk* csw, LPSTACKFRAME64 frame, CONTEXT* context)
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{
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return FALSE;
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}
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#endif
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static unsigned arm64_map_dwarf_register(unsigned regno, BOOL eh_frame)
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{
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if (regno <= 28) return CV_ARM64_X0 + regno;
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if (regno == 29) return CV_ARM64_FP;
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if (regno == 30) return CV_ARM64_LR;
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if (regno == 31) return CV_ARM64_SP;
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FIXME("Don't know how to map register %d\n", regno);
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return CV_ARM64_NOREG;
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}
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static void* arm64_fetch_context_reg(CONTEXT* ctx, unsigned regno, unsigned* size)
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{
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#ifdef __aarch64__
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switch (regno)
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{
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case CV_ARM64_X0 + 0:
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case CV_ARM64_X0 + 1:
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case CV_ARM64_X0 + 2:
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case CV_ARM64_X0 + 3:
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case CV_ARM64_X0 + 4:
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case CV_ARM64_X0 + 5:
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case CV_ARM64_X0 + 6:
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case CV_ARM64_X0 + 7:
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case CV_ARM64_X0 + 8:
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case CV_ARM64_X0 + 9:
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case CV_ARM64_X0 + 10:
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case CV_ARM64_X0 + 11:
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case CV_ARM64_X0 + 12:
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case CV_ARM64_X0 + 13:
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case CV_ARM64_X0 + 14:
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case CV_ARM64_X0 + 15:
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case CV_ARM64_X0 + 16:
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case CV_ARM64_X0 + 17:
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case CV_ARM64_X0 + 18:
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case CV_ARM64_X0 + 19:
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case CV_ARM64_X0 + 20:
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case CV_ARM64_X0 + 21:
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case CV_ARM64_X0 + 22:
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case CV_ARM64_X0 + 23:
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case CV_ARM64_X0 + 24:
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case CV_ARM64_X0 + 25:
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case CV_ARM64_X0 + 26:
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case CV_ARM64_X0 + 27:
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case CV_ARM64_X0 + 28: *size = sizeof(ctx->u.X[0]); return &ctx->u.X[regno - CV_ARM64_X0];
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case CV_ARM64_PSTATE: *size = sizeof(ctx->Cpsr); return &ctx->Cpsr;
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case CV_ARM64_FP: *size = sizeof(ctx->u.s.Fp); return &ctx->u.s.Fp;
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case CV_ARM64_LR: *size = sizeof(ctx->u.s.Lr); return &ctx->u.s.Lr;
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case CV_ARM64_SP: *size = sizeof(ctx->Sp); return &ctx->Sp;
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case CV_ARM64_PC: *size = sizeof(ctx->Pc); return &ctx->Pc;
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}
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#endif
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FIXME("Unknown register %x\n", regno);
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return NULL;
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}
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static const char* arm64_fetch_regname(unsigned regno)
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{
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switch (regno)
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{
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case CV_ARM64_PSTATE: return "cpsr";
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case CV_ARM64_X0 + 0: return "x0";
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case CV_ARM64_X0 + 1: return "x1";
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case CV_ARM64_X0 + 2: return "x2";
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case CV_ARM64_X0 + 3: return "x3";
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case CV_ARM64_X0 + 4: return "x4";
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case CV_ARM64_X0 + 5: return "x5";
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case CV_ARM64_X0 + 6: return "x6";
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case CV_ARM64_X0 + 7: return "x7";
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case CV_ARM64_X0 + 8: return "x8";
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case CV_ARM64_X0 + 9: return "x9";
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case CV_ARM64_X0 + 10: return "x10";
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case CV_ARM64_X0 + 11: return "x11";
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case CV_ARM64_X0 + 12: return "x12";
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case CV_ARM64_X0 + 13: return "x13";
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case CV_ARM64_X0 + 14: return "x14";
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case CV_ARM64_X0 + 15: return "x15";
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case CV_ARM64_X0 + 16: return "x16";
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case CV_ARM64_X0 + 17: return "x17";
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case CV_ARM64_X0 + 18: return "x18";
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case CV_ARM64_X0 + 19: return "x19";
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case CV_ARM64_X0 + 20: return "x20";
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case CV_ARM64_X0 + 21: return "x21";
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case CV_ARM64_X0 + 22: return "x22";
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case CV_ARM64_X0 + 23: return "x23";
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case CV_ARM64_X0 + 24: return "x24";
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case CV_ARM64_X0 + 25: return "x25";
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case CV_ARM64_X0 + 26: return "x26";
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case CV_ARM64_X0 + 27: return "x27";
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case CV_ARM64_X0 + 28: return "x28";
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case CV_ARM64_FP: return "fp";
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case CV_ARM64_LR: return "lr";
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case CV_ARM64_SP: return "sp";
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case CV_ARM64_PC: return "pc";
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}
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FIXME("Unknown register %x\n", regno);
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return NULL;
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}
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static BOOL arm64_fetch_minidump_thread(struct dump_context* dc, unsigned index, unsigned flags, const CONTEXT* ctx)
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{
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if (ctx->ContextFlags && (flags & ThreadWriteInstructionWindow))
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{
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/* FIXME: crop values across module boundaries, */
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#ifdef __aarch64__
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ULONG base = ctx->Pc <= 0x80 ? 0 : ctx->Pc - 0x80;
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minidump_add_memory_block(dc, base, ctx->Pc + 0x80 - base, 0);
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#endif
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}
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return TRUE;
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}
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static BOOL arm64_fetch_minidump_module(struct dump_context* dc, unsigned index, unsigned flags)
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{
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/* FIXME: actually, we should probably take care of FPO data, unless it's stored in
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* function table minidump stream
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*/
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return FALSE;
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}
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DECLSPEC_HIDDEN struct cpu cpu_arm64 = {
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IMAGE_FILE_MACHINE_ARM64,
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8,
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CV_ARM64_FP,
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arm64_get_addr,
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arm64_stack_walk,
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NULL,
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arm64_map_dwarf_register,
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arm64_fetch_context_reg,
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arm64_fetch_regname,
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arm64_fetch_minidump_thread,
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arm64_fetch_minidump_module,
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};
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