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 |