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* i386-cygwin-tdep.c (i386_cygwin_frame_chain): New function.

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(i386_cygwin_init_abi): Set i386_cygwin_frame_chain as new
	frame_chain function.
	* Makefile.in: Add dependencies due to above change.
This commit is contained in:
Corinna Vinschen 2003-04-10 13:15:50 +00:00
parent 7c86889b04
commit f870b49baf
3 changed files with 39 additions and 1 deletions
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7
gdb/ChangeLog
View File

@ -1,3 +1,10 @@
2003-04-10 Corinna Vinschen <vinschen@redhat.com>
* i386-cygwin-tdep.c (i386_cygwin_frame_chain): New function.
(i386_cygwin_init_abi): Set i386_cygwin_frame_chain as new
frame_chain function.
* Makefile.in: Add dependencies due to above change.
2003-04-10 Corinna Vinschen <vinschen@redhat.com>
* blockframe.c (legacy_frame_chain_valid): Move call to

2
gdb/Makefile.in
View File

@ -1798,7 +1798,7 @@ i386gnu-tdep.o: i386gnu-tdep.c $(defs_h) $(i386_tdep_h) $(osabi_h)
i386ly-tdep.o: i386ly-tdep.c $(defs_h) $(gdbcore_h) $(inferior_h) \
$(regcache_h) $(target_h) $(i386_tdep_h) $(osabi_h)
i386-cygwin-tdep.o: i386-cygwin-tdep.c $(defs_h) $(gdb_string_h) \
$(i386_tdep_h) $(osabi_h)
$(i386_tdep_h) $(osabi_h) $(gdbcore_h) $(frame_h) $(dummy_frame_h)
i386nbsd-tdep.o: i386nbsd-tdep.c $(defs_h) $(gdbtypes_h) $(gdbcore_h) \
$(regcache_h) $(arch_utils_h) $(i386_tdep_h) $(i387_tdep_h) \
$(nbsd_tdep_h) $(solib_svr4_h) $(osabi_h)

31
gdb/i386-cygwin-tdep.c
View File

@ -20,8 +20,37 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "gdb_string.h"
#include "gdbcore.h"
#include "i386-tdep.h"
#include "osabi.h"
#include "frame.h"
#include "dummy-frame.h"
static int
i386_cygwin_frame_chain_valid (CORE_ADDR chain, struct frame_info *thisframe)
{
/* In the context where this is used, we get the saved PC before we've
successfully unwound far enough to be sure what we've got (it may
be a signal handler caller). If we're dealing with a signal
handler caller, this will return valid, which is fine. If not,
it'll make the correct test. */
return ((get_frame_type (thisframe) == SIGTRAMP_FRAME) || chain != 0);
}
/* Return the chain-pointer for FRAME. In the case of the i386, the
frame's nominal address is the address of a 4-byte word containing
the calling frame's address. */
static CORE_ADDR
i386_cygwin_frame_chain (struct frame_info *frame)
{
if (pc_in_dummy_frame (get_frame_pc (frame)))
return get_frame_base (frame);
if (get_frame_type (frame) == SIGTRAMP_FRAME
|| i386_frameless_signal_p (frame))
return get_frame_base (frame);
return read_memory_unsigned_integer (get_frame_base (frame), 4);
}
static void
i386_cygwin_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
@ -29,6 +58,8 @@ i386_cygwin_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
tdep->struct_return = reg_struct_return;
set_gdbarch_deprecated_frame_chain (gdbarch, i386_cygwin_frame_chain);
set_gdbarch_deprecated_frame_chain_valid (gdbarch, i386_cygwin_frame_chain_valid);
}
static enum gdb_osabi