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* gdbarch.sh (gdbarch_skip_main_prologue): New.

Browse Source 
* gdbarch.h, gdbarch.c: Regenerate.
	* i386-tdep.h (i386_skip_main_prologue): Declare.
	* i386-tdep.c (i386_skip_main_prologue): New.
	* i386-cygwin-tdep.c (i386_cygwin_init_abi): Register
	i386_skip_main_prologue as gdbarch_skip_main_prologue gdbarch callback.
	* symtab.c (find_function_start_sal): When pc points at the "main"
	function, call gdbarch_skip_main_prologue.
This commit is contained in:
Pierre Muller
2008-06-11 22:03:49 +00:00
parent a4e2ee12f0
commit 4309257cda
8 changed files with 102 additions and 0 deletions
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15
gdb/symtab.c
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@ -2617,6 +2617,21 @@ find_function_start_sal (struct symbol *sym, int funfirstline)
/* Recalculate the line number (might not be N+1). */
sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0);
}
/* On targets with executable formats that don't have a concept of
constructors (ELF with .init has, PE doesn't), gcc emits a call
to `__main' in `main' between the prologue and before user
code. */
if (funfirstline
&& gdbarch_skip_main_prologue_p (current_gdbarch)
&& SYMBOL_LINKAGE_NAME (sym)
&& strcmp (SYMBOL_LINKAGE_NAME (sym), "main") == 0)
{
pc = gdbarch_skip_main_prologue (current_gdbarch, pc);
/* Recalculate the line number (might not be N+1). */
sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0);
}
sal.pc = pc;
return sal;