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This is gdbint.info, produced by makeinfo version 4.8 from
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This is gdbint.info, produced by makeinfo version 4.13 from
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./gdbint.texinfo.
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./gdbint.texinfo.
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INFO-DIR-SECTION Software development
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INFO-DIR-SECTION Software development
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START-INFO-DIR-ENTRY
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START-INFO-DIR-ENTRY
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* Gdb-Internals: (gdbint). The GNU debugger's internals.
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* Gdb-Internals: (gdbint). The GNU debugger's internals.
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a new interface overcoming the issues with the notification mechanisms
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a new interface overcoming the issues with the notification mechanisms
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previously available. This new interface needed to be strongly typed,
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previously available. This new interface needed to be strongly typed,
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easy to extend, and versatile enough to be used as the standard
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easy to extend, and versatile enough to be used as the standard
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interface when adding new notifications.
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interface when adding new notifications.
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See *Note GDB Observers:: for a brief description of the observers
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See *note GDB Observers:: for a brief description of the observers
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currently implemented in GDB. The rationale for the current
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currently implemented in GDB. The rationale for the current
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implementation is also briefly discussed.
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implementation is also briefly discussed.
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File: gdbint.info, Node: User Interface, Next: libgdb, Prev: Algorithms, Up: Top
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File: gdbint.info, Node: User Interface, Next: libgdb, Prev: Algorithms, Up: Top
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The IBM RS/6000 running AIX uses an object file format called XCOFF.
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The IBM RS/6000 running AIX uses an object file format called XCOFF.
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The COFF sections, symbols, and line numbers are used, but debugging
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The COFF sections, symbols, and line numbers are used, but debugging
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symbols are `dbx'-style stabs whose strings are located in the `.debug'
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symbols are `dbx'-style stabs whose strings are located in the `.debug'
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section (rather than the string table). For more information, see
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section (rather than the string table). For more information, see
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*Note Top: (stabs)Top.
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*note Top: (stabs)Top.
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The shared library scheme has a clean interface for figuring out what
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The shared library scheme has a clean interface for figuring out what
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shared libraries are in use, but the catch is that everything which
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shared libraries are in use, but the catch is that everything which
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refers to addresses (symbol tables and breakpoints at least) needs to be
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refers to addresses (symbol tables and breakpoints at least) needs to be
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relocated for both shared libraries and the main executable. At least
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relocated for both shared libraries and the main executable. At least
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feature-specific macros. It was introduced in haste and we are
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feature-specific macros. It was introduced in haste and we are
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repenting at leisure.
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repenting at leisure.
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`I386_USE_GENERIC_WATCHPOINTS'
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`I386_USE_GENERIC_WATCHPOINTS'
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An x86-based target can define this to use the generic x86
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An x86-based target can define this to use the generic x86
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watchpoint support; see *Note I386_USE_GENERIC_WATCHPOINTS:
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watchpoint support; see *note I386_USE_GENERIC_WATCHPOINTS:
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Algorithms.
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Algorithms.
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`gdbarch_in_function_epilogue_p (GDBARCH, ADDR)'
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`gdbarch_in_function_epilogue_p (GDBARCH, ADDR)'
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Returns non-zero if the given ADDR is in the epilogue of a
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Returns non-zero if the given ADDR is in the epilogue of a
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function. The epilogue of a function is defined as the part of a
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function. The epilogue of a function is defined as the part of a
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a processor or development board. "Target descriptions" provide a
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a processor or development board. "Target descriptions" provide a
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mechanism for the user to tell GDB more about what their target
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mechanism for the user to tell GDB more about what their target
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supports, or for the target to tell GDB directly.
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supports, or for the target to tell GDB directly.
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For details on writing, automatically supplying, and manually
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For details on writing, automatically supplying, and manually
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selecting target descriptions, see *Note Target Descriptions:
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selecting target descriptions, see *note Target Descriptions:
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(gdb)Target Descriptions. This section will cover some related topics
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(gdb)Target Descriptions. This section will cover some related topics
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about the GDB internals.
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about the GDB internals.
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* Menu:
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* Menu:
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`' element is handled first, to determine which
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`' element is handled first, to determine which
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architecture's gdbarch initialization routine is called to create the
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architecture's gdbarch initialization routine is called to create the
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new architecture. Then the initialization routine is called, and has a
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new architecture. Then the initialization routine is called, and has a
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chance to adjust the constructed architecture based on the contents of
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chance to adjust the constructed architecture based on the contents of
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the target description. For instance, it can recognize any properties
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the target description. For instance, it can recognize any properties
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set by a `to_read_description' routine. Also see *Note Adding Target
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set by a `to_read_description' routine. Also see *note Adding Target
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Described Register Support::.
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Described Register Support::.
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File: gdbint.info, Node: Adding Target Described Register Support, Prev: Target Descriptions Implementation, Up: Target Descriptions
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File: gdbint.info, Node: Adding Target Described Register Support, Prev: Target Descriptions Implementation, Up: Target Descriptions
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the same. These macros should be defined (or left undefined) in
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the same. These macros should be defined (or left undefined) in
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`nm-SYSTEM.h'.
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`nm-SYSTEM.h'.
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`I386_USE_GENERIC_WATCHPOINTS'
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`I386_USE_GENERIC_WATCHPOINTS'
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An x86-based machine can define this to use the generic x86
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An x86-based machine can define this to use the generic x86
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watchpoint support; see *Note I386_USE_GENERIC_WATCHPOINTS:
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watchpoint support; see *note I386_USE_GENERIC_WATCHPOINTS:
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Algorithms.
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Algorithms.
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`SOLIB_ADD (FILENAME, FROM_TTY, TARG, READSYMS)'
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`SOLIB_ADD (FILENAME, FROM_TTY, TARG, READSYMS)'
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Define this to expand into an expression that will cause the
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Define this to expand into an expression that will cause the
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symbols in FILENAME to be added to GDB's symbol table. If
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symbols in FILENAME to be added to GDB's symbol table. If
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