/* Symbol table definitions for GDB.
- Copyright (C) 1986, 1989, 1991, 1992 Free Software Foundation, Inc.
+ Copyright 1986, 1989, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
This file is part of GDB.
#define obstack_chunk_alloc xmalloc
#define obstack_chunk_free free
-/* GNU C supports enums that are bitfields. Some old compilers don't. */
-#if defined(__GNUC__) && !defined(BYTE_BITFIELD)
+/* Don't do this; it means that if some .o's are compiled with GNU C
+ and some are not (easy to do accidentally the way we configure
+ things; also it is a pain to have to "make clean" every time you
+ want to switch compilers), then GDB dies a horrible death. */
+/* GNU C supports enums that are bitfields. Some compilers don't. */
+#if 0 && defined(__GNUC__) && !defined(BYTE_BITFIELD)
#define BYTE_BITFIELD :8;
#else
#define BYTE_BITFIELD /*nothing*/
union
{
- long value;
+ /* The fact that this is a long not a LONGEST mainly limits the
+ range of a LOC_CONST. Since LOC_CONST_BYTES exists, I'm not
+ sure that is a big deal. */
+ long ivalue;
struct block *block;
expect all symbol-reading code to set it correctly (the ELF code
also tries to set it correctly). */
- unsigned short section;
+ short section;
};
#define SYMBOL_NAME(symbol) (symbol)->ginfo.name
-#define SYMBOL_VALUE(symbol) (symbol)->ginfo.value.value
+#define SYMBOL_VALUE(symbol) (symbol)->ginfo.value.ivalue
#define SYMBOL_VALUE_ADDRESS(symbol) (symbol)->ginfo.value.address
#define SYMBOL_VALUE_BYTES(symbol) (symbol)->ginfo.value.bytes
#define SYMBOL_BLOCK_VALUE(symbol) (symbol)->ginfo.value.block
mst_data, /* Generally initialized data */
mst_bss, /* Generally uninitialized data */
mst_abs, /* Generally absolute (nonrelocatable) */
+ /* GDB uses mst_solib_trampoline for the start address of a shared
+ library trampoline entry. Breakpoints for shared library functions
+ are put there if the shared library is not yet loaded.
+ After the shared library is loaded, lookup_minimal_symbol will
+ prefer the minimal symbol from the shared library (usually
+ a mst_text symbol) over the mst_solib_trampoline symbol, and the
+ breakpoints will be moved to their true address in the shared
+ library via breakpoint_re_set. */
+ mst_solib_trampoline, /* Shared library trampoline code */
/* For the mst_file* types, the names are only guaranteed to be unique
within a given .o file. */
mst_file_text, /* Static version of mst_text */
extern struct minimal_symbol *
lookup_minimal_symbol_by_pc PARAMS ((CORE_ADDR));
+extern struct minimal_symbol *
+lookup_solib_trampoline_symbol_by_pc PARAMS ((CORE_ADDR));
+
+extern CORE_ADDR
+find_solib_trampoline_target PARAMS ((CORE_ADDR));
+
extern void
init_minimal_symbol_collection PARAMS ((void));
extern struct symtab_and_line
find_pc_line PARAMS ((CORE_ADDR, int));
+/* Given an address, return the nearest symbol at or below it in memory.
+ Optionally return the symtab it's from through 2nd arg, and the
+ address in inferior memory of the symbol through 3rd arg. */
+
+extern struct symbol *
+find_addr_symbol PARAMS ((CORE_ADDR, struct symtab **, CORE_ADDR *));
+
/* Given a symtab and line number, return the pc there. */
extern CORE_ADDR
void
maintenance_print_objfiles PARAMS ((char *, int));
+void
+maintenance_check_symtabs PARAMS ((char *, int));
+
#endif
extern void