diff options
Diffstat (limited to 'src/common/dwarf/cfi_assembler.h')
| -rw-r--r-- | src/common/dwarf/cfi_assembler.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/common/dwarf/cfi_assembler.h b/src/common/dwarf/cfi_assembler.h index 4c9f57de..3f305030 100644 --- a/src/common/dwarf/cfi_assembler.h +++ b/src/common/dwarf/cfi_assembler.h @@ -31,7 +31,7 @@ // Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> -// cfi-assembler.h: Define CFISection, a class for creating properly +// cfi_assembler.h: Define CFISection, a class for creating properly // (and improperly) formatted DWARF CFI data for unit tests. #ifndef PROCESSOR_CFI_ASSEMBLER_H_ @@ -219,6 +219,19 @@ class CFISection: public Section { Label start; }; + // Constants used in CFI/.eh_frame data: + + // If the first four bytes of an "initial length" are this constant, then + // the data uses the 64-bit DWARF format, and the length itself is the + // subsequent eight bytes. + static const u_int32_t kDwarf64InitialLengthMarker = 0xffffffffU; + + // The CIE identifier for 32- and 64-bit DWARF CFI and .eh_frame data. + static const u_int32_t kDwarf32CIEIdentifier = ~(u_int32_t)0; + static const u_int64_t kDwarf64CIEIdentifier = ~(u_int64_t)0; + static const u_int32_t kEHFrame32CIEIdentifier = 0; + static const u_int64_t kEHFrame64CIEIdentifier = 0; + // The size of a machine address for the data in this section. size_t address_size_; |