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* linespec.c: Include "target.h".

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(minsym_found): Handle minimal symbols pointing to function
	descriptors.  Use find_function_start_pc.
	* minsyms.c (msymbol_objfile): New function.
	* parse.c (write_exp_msymbol): Handle minimal symbols pointing
	to function descriptors.
	* symtab.c (fixup_section): Only use minimal symbol at the same
	address to determine section of a symbol.
	(find_function_start_pc): New function.
	(find_function_start_sal): Use it.
	* symtab.h (msymbol_objfile): Add prototype.
	(find_function_start_pc): Likewise.
	* value.c: Include "objfiles.h".
	(value_fn_field): Handle minimal symbols pointing to function
	descriptors.
	* Makefile.in (linespec.o): Update dependencies.
	(value.o): Likewise.
This commit is contained in:
Ulrich Weigand
2008-05-03 00:37:35 +00:00
parent 0315afbc1d
commit bccdca4a5f
8 changed files with 136 additions and 44 deletions
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20
gdb/linespec.c
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@@ -38,6 +38,7 @@
#include "language.h"
#include "interps.h"
#include "mi/mi-cmds.h"
#include "target.h"
/* We share this one with symtab.c, but it is not exported widely. */
@@ -1846,21 +1847,32 @@ symbol_found (int funfirstline, char ***canonical, char *copy,
static struct symtabs_and_lines
minsym_found (int funfirstline, struct minimal_symbol *msymbol)
{
struct objfile *objfile = msymbol_objfile (msymbol);
struct gdbarch *gdbarch = get_objfile_arch (objfile);
struct symtabs_and_lines values;
CORE_ADDR pc;
values.sals = (struct symtab_and_line *)
xmalloc (sizeof (struct symtab_and_line));
values.sals[0] = find_pc_sect_line (SYMBOL_VALUE_ADDRESS (msymbol),
(struct bfd_section *) 0, 0);
values.sals[0].section = SYMBOL_BFD_SECTION (msymbol);
/* The minimal symbol might point to a function descriptor;
resolve it to the actual code address instead. */
pc = gdbarch_convert_from_func_ptr_addr (gdbarch,
values.sals[0].pc,
&current_target);
if (pc != values.sals[0].pc)
values.sals[0] = find_pc_sect_line (pc, NULL, 0);
if (funfirstline)
{
struct symtab_and_line sal;
values.sals[0].pc
+= gdbarch_deprecated_function_start_offset (current_gdbarch);
values.sals[0].pc = gdbarch_skip_prologue
(current_gdbarch, values.sals[0].pc);
values.sals[0].pc = find_function_start_pc (gdbarch,
values.sals[0].pc,
values.sals[0].section);
sal = find_pc_sect_line (values.sals[0].pc, values.sals[0].section, 0);