| Index: obsolete/breakpad/common/dwarf/cfi_assembler.cc
|
| diff --git a/obsolete/breakpad/common/dwarf/cfi_assembler.cc b/obsolete/breakpad/common/dwarf/cfi_assembler.cc
|
| deleted file mode 100644
|
| index 110aa2e73d623278f3870e577657e1b66de37b49..0000000000000000000000000000000000000000
|
| --- a/obsolete/breakpad/common/dwarf/cfi_assembler.cc
|
| +++ /dev/null
|
| @@ -1,196 +0,0 @@
|
| -// Copyright (c) 2010, Google Inc.
|
| -// All rights reserved.
|
| -//
|
| -// Redistribution and use in source and binary forms, with or without
|
| -// modification, are permitted provided that the following conditions are
|
| -// met:
|
| -//
|
| -// * Redistributions of source code must retain the above copyright
|
| -// notice, this list of conditions and the following disclaimer.
|
| -// * Redistributions in binary form must reproduce the above
|
| -// copyright notice, this list of conditions and the following disclaimer
|
| -// in the documentation and/or other materials provided with the
|
| -// distribution.
|
| -// * Neither the name of Google Inc. nor the names of its
|
| -// contributors may be used to endorse or promote products derived from
|
| -// this software without specific prior written permission.
|
| -//
|
| -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
| -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
| -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
| -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
| -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
| -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
| -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
| -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
| -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
| -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
| -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
| -
|
| -// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com>
|
| -
|
| -// cfi_assembler.cc: Implementation of google_breakpad::CFISection class.
|
| -// See cfi_assembler.h for details.
|
| -
|
| -#include <cassert>
|
| -#include <stdlib.h>
|
| -
|
| -#include "common/dwarf/cfi_assembler.h"
|
| -
|
| -namespace google_breakpad {
|
| -
|
| -using dwarf2reader::DwarfPointerEncoding;
|
| -
|
| -CFISection &CFISection::CIEHeader(u_int64_t code_alignment_factor,
|
| - int data_alignment_factor,
|
| - unsigned return_address_register,
|
| - u_int8_t version,
|
| - const string &augmentation,
|
| - bool dwarf64) {
|
| - assert(!entry_length_);
|
| - entry_length_ = new PendingLength();
|
| - in_fde_ = false;
|
| -
|
| - if (dwarf64) {
|
| - D32(0xffffffff);
|
| - D64(entry_length_->length);
|
| - entry_length_->start = Here();
|
| - // Write the CIE distinguished value. In .debug_frame sections, it's
|
| - // ~0; in .eh_frame sections, it's zero.
|
| - D64(eh_frame_ ? 0 : ~(u_int64_t)0);
|
| - } else {
|
| - D32(entry_length_->length);
|
| - entry_length_->start = Here();
|
| - // Write the CIE distinguished value. In .debug_frame sections, it's
|
| - // ~0; in .eh_frame sections, it's zero.
|
| - D32(eh_frame_ ? 0 : ~(u_int32_t)0);
|
| - }
|
| - D8(version);
|
| - AppendCString(augmentation);
|
| - ULEB128(code_alignment_factor);
|
| - LEB128(data_alignment_factor);
|
| - if (version == 1)
|
| - D8(return_address_register);
|
| - else
|
| - ULEB128(return_address_register);
|
| - return *this;
|
| -}
|
| -
|
| -CFISection &CFISection::FDEHeader(Label cie_pointer,
|
| - u_int64_t initial_location,
|
| - u_int64_t address_range,
|
| - bool dwarf64) {
|
| - assert(!entry_length_);
|
| - entry_length_ = new PendingLength();
|
| - in_fde_ = true;
|
| - fde_start_address_ = initial_location;
|
| -
|
| - if (dwarf64) {
|
| - D32(0xffffffff);
|
| - D64(entry_length_->length);
|
| - entry_length_->start = Here();
|
| - if (eh_frame_)
|
| - D64(Here() - cie_pointer);
|
| - else
|
| - D64(cie_pointer);
|
| - } else {
|
| - D32(entry_length_->length);
|
| - entry_length_->start = Here();
|
| - if (eh_frame_)
|
| - D32(Here() - cie_pointer);
|
| - else
|
| - D32(cie_pointer);
|
| - }
|
| - EncodedPointer(initial_location);
|
| - // The FDE length in an .eh_frame section uses the same encoding as the
|
| - // initial location, but ignores the base address (selected by the upper
|
| - // nybble of the encoding), as it's a length, not an address that can be
|
| - // made relative.
|
| - EncodedPointer(address_range,
|
| - DwarfPointerEncoding(pointer_encoding_ & 0x0f));
|
| - return *this;
|
| -}
|
| -
|
| -CFISection &CFISection::FinishEntry() {
|
| - assert(entry_length_);
|
| - Align(address_size_, dwarf2reader::DW_CFA_nop);
|
| - entry_length_->length = Here() - entry_length_->start;
|
| - delete entry_length_;
|
| - entry_length_ = NULL;
|
| - in_fde_ = false;
|
| - return *this;
|
| -}
|
| -
|
| -CFISection &CFISection::EncodedPointer(u_int64_t address,
|
| - DwarfPointerEncoding encoding,
|
| - const EncodedPointerBases &bases) {
|
| - // Omitted data is extremely easy to emit.
|
| - if (encoding == dwarf2reader::DW_EH_PE_omit)
|
| - return *this;
|
| -
|
| - // If (encoding & dwarf2reader::DW_EH_PE_indirect) != 0, then we assume
|
| - // that ADDRESS is the address at which the pointer is stored --- in
|
| - // other words, that bit has no effect on how we write the pointer.
|
| - encoding = DwarfPointerEncoding(encoding & ~dwarf2reader::DW_EH_PE_indirect);
|
| -
|
| - // Find the base address to which this pointer is relative. The upper
|
| - // nybble of the encoding specifies this.
|
| - u_int64_t base;
|
| - switch (encoding & 0xf0) {
|
| - case dwarf2reader::DW_EH_PE_absptr: base = 0; break;
|
| - case dwarf2reader::DW_EH_PE_pcrel: base = bases.cfi + Size(); break;
|
| - case dwarf2reader::DW_EH_PE_textrel: base = bases.text; break;
|
| - case dwarf2reader::DW_EH_PE_datarel: base = bases.data; break;
|
| - case dwarf2reader::DW_EH_PE_funcrel: base = fde_start_address_; break;
|
| - case dwarf2reader::DW_EH_PE_aligned: base = 0; break;
|
| - default: abort();
|
| - };
|
| -
|
| - // Make ADDRESS relative. Yes, this is appropriate even for "absptr"
|
| - // values; see gcc/unwind-pe.h.
|
| - address -= base;
|
| -
|
| - // Align the pointer, if required.
|
| - if ((encoding & 0xf0) == dwarf2reader::DW_EH_PE_aligned)
|
| - Align(AddressSize());
|
| -
|
| - // Append ADDRESS to this section in the appropriate form. For the
|
| - // fixed-width forms, we don't need to differentiate between signed and
|
| - // unsigned encodings, because ADDRESS has already been extended to 64
|
| - // bits before it was passed to us.
|
| - switch (encoding & 0x0f) {
|
| - case dwarf2reader::DW_EH_PE_absptr:
|
| - Address(address);
|
| - break;
|
| -
|
| - case dwarf2reader::DW_EH_PE_uleb128:
|
| - ULEB128(address);
|
| - break;
|
| -
|
| - case dwarf2reader::DW_EH_PE_sleb128:
|
| - LEB128(address);
|
| - break;
|
| -
|
| - case dwarf2reader::DW_EH_PE_udata2:
|
| - case dwarf2reader::DW_EH_PE_sdata2:
|
| - D16(address);
|
| - break;
|
| -
|
| - case dwarf2reader::DW_EH_PE_udata4:
|
| - case dwarf2reader::DW_EH_PE_sdata4:
|
| - D32(address);
|
| - break;
|
| -
|
| - case dwarf2reader::DW_EH_PE_udata8:
|
| - case dwarf2reader::DW_EH_PE_sdata8:
|
| - D64(address);
|
| - break;
|
| -
|
| - default:
|
| - abort();
|
| - }
|
| -
|
| - return *this;
|
| -};
|
| -
|
| -} // namespace google_breakpad
|
|
|