aprantl created this revision.
aprantl added reviewers: JDevlieghere, clayborg, jasonmolenda.
aprantl added a reviewer: friss.
This is an alternate patch for the bug reported in
https://bugs.llvm.org/show_bug.cgi?id=39816 ("lldb doesn't show a file of line
entry for big project"). This limits the number of lines in a source file to
32M, which I think is reasonable even for preprocessed source inputs?
https://reviews.llvm.org/D56218
Files:
include/lldb/Symbol/LineTable.h
Index: include/lldb/Symbol/LineTable.h
===================================================================
--- include/lldb/Symbol/LineTable.h
+++ include/lldb/Symbol/LineTable.h
@@ -306,26 +306,30 @@
//------------------------------------------------------------------
// Member variables.
//------------------------------------------------------------------
- lldb::addr_t file_addr; ///< The file address for this line entry
- uint32_t line; ///< The source line number, or zero if there is no line
- ///number information.
- uint16_t column; ///< The column number of the source line, or zero if
there
- ///is no column information.
- uint16_t file_idx : 11, ///< The file index into CompileUnit's file table,
- ///or zero if there is no file information.
- is_start_of_statement : 1, ///< Indicates this entry is the beginning
of
- ///a statement.
- is_start_of_basic_block : 1, ///< Indicates this entry is the beginning
- ///of a basic block.
- is_prologue_end : 1, ///< Indicates this entry is one (of possibly
many)
- ///where execution should be suspended for an
entry
- ///breakpoint of a function.
- is_epilogue_begin : 1, ///< Indicates this entry is one (of possibly
- ///many) where execution should be suspended for
- ///an exit breakpoint of a function.
- is_terminal_entry : 1; ///< Indicates this entry is that of the first
- ///byte after the end of a sequence of target
- ///machine instructions.
+ /// The file address for this line entry.
+ lldb::addr_t file_addr;
+ /// The source line number, or zero if there is no line number
+ /// information.
+ uint32_t line : 27;
+ /// Indicates this entry is the beginning of a statement.
+ uint32_t is_start_of_statement : 1;
+ /// Indicates this entry is the beginning of a basic block.
+ uint32_t is_start_of_basic_block : 1;
+ /// Indicates this entry is one (of possibly many) where execution
+ /// should be suspended for an entry breakpoint of a function.
+ uint32_t is_prologue_end : 1;
+ /// Indicates this entry is one (of possibly many) where execution
+ /// should be suspended for an exit breakpoint of a function.
+ uint32_t is_epilogue_begin : 1;
+ /// Indicates this entry is that of the first byte after the end
+ /// of a sequence of target machine instructions.
+ uint32_t is_terminal_entry : 1;
+ /// The column number of the source line, or zero if there is no
+ /// column information.
+ uint16_t column;
+ /// The file index into CompileUnit's file table, or zero if there
+ /// is no file information.
+ uint16_t file_idx;
};
struct EntrySearchInfo {
Index: include/lldb/Symbol/LineTable.h
===================================================================
--- include/lldb/Symbol/LineTable.h
+++ include/lldb/Symbol/LineTable.h
@@ -306,26 +306,30 @@
//------------------------------------------------------------------
// Member variables.
//------------------------------------------------------------------
- lldb::addr_t file_addr; ///< The file address for this line entry
- uint32_t line; ///< The source line number, or zero if there is no line
- ///number information.
- uint16_t column; ///< The column number of the source line, or zero if there
- ///is no column information.
- uint16_t file_idx : 11, ///< The file index into CompileUnit's file table,
- ///or zero if there is no file information.
- is_start_of_statement : 1, ///< Indicates this entry is the beginning of
- ///a statement.
- is_start_of_basic_block : 1, ///< Indicates this entry is the beginning
- ///of a basic block.
- is_prologue_end : 1, ///< Indicates this entry is one (of possibly many)
- ///where execution should be suspended for an entry
- ///breakpoint of a function.
- is_epilogue_begin : 1, ///< Indicates this entry is one (of possibly
- ///many) where execution should be suspended for
- ///an exit breakpoint of a function.
- is_terminal_entry : 1; ///< Indicates this entry is that of the first
- ///byte after the end of a sequence of target
- ///machine instructions.
+ /// The file address for this line entry.
+ lldb::addr_t file_addr;
+ /// The source line number, or zero if there is no line number
+ /// information.
+ uint32_t line : 27;
+ /// Indicates this entry is the beginning of a statement.
+ uint32_t is_start_of_statement : 1;
+ /// Indicates this entry is the beginning of a basic block.
+ uint32_t is_start_of_basic_block : 1;
+ /// Indicates this entry is one (of possibly many) where execution
+ /// should be suspended for an entry breakpoint of a function.
+ uint32_t is_prologue_end : 1;
+ /// Indicates this entry is one (of possibly many) where execution
+ /// should be suspended for an exit breakpoint of a function.
+ uint32_t is_epilogue_begin : 1;
+ /// Indicates this entry is that of the first byte after the end
+ /// of a sequence of target machine instructions.
+ uint32_t is_terminal_entry : 1;
+ /// The column number of the source line, or zero if there is no
+ /// column information.
+ uint16_t column;
+ /// The file index into CompileUnit's file table, or zero if there
+ /// is no file information.
+ uint16_t file_idx;
};
struct EntrySearchInfo {
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