diff options
Diffstat (limited to 'llvm/include/llvm/Support/Dwarf.h')
| -rw-r--r-- | llvm/include/llvm/Support/Dwarf.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/llvm/include/llvm/Support/Dwarf.h b/llvm/include/llvm/Support/Dwarf.h index a31c3f131be..a1ed1d1c114 100644 --- a/llvm/include/llvm/Support/Dwarf.h +++ b/llvm/include/llvm/Support/Dwarf.h @@ -791,6 +791,17 @@ const char *AtomTypeString(unsigned Atom); // Constants for the GNU pubnames/pubtypes extensions supporting gdb index. enum GDBIndex { + // The full index looks like this for each symbol: + // + // 0-23 CU index + // 24-27 reserved + // 28-30 symbol kind + // 31 0 == global, 1 == static + // + // where each entry refers to the CU and some attributes about the symbol. + + // Attributes kinds for the index. + // Special value to indicate no attributes are present. GDB_INDEX_SYMBOL_KIND_NONE = 0, GDB_INDEX_SYMBOL_KIND_TYPE = 1, @@ -800,7 +811,17 @@ enum GDBIndex { // 3 unused bits. GDB_INDEX_SYMBOL_KIND_UNUSED5 = 5, GDB_INDEX_SYMBOL_KIND_UNUSED6 = 6, - GDB_INDEX_SYMBOL_KIND_UNUSED7 = 7 + GDB_INDEX_SYMBOL_KIND_UNUSED7 = 7, + + // Index values are defined via the set of CUs that define the + // symbol. For the pubnames/pubtypes extensions we need the + // various shifts and masks. + GDB_INDEX_SYMBOL_STATIC_SHIFT = 31, + GDB_INDEX_SYMBOL_STATIC_MASK = 1, + GDB_INDEX_SYMBOL_KIND_SHIFT = 28, + GDB_INDEX_SYMBOL_KIND_MASK = 7, + GDB_INDEX_CU_BITSIZE = 24, + GDB_INDEX_CU_MASK = ((1 << GDB_INDEX_CU_BITSIZE) - 1) }; /// GDBIndexTypeString - Return the string for the specified index type. |
