diff options
Diffstat (limited to 'gdb/frame.c')
| -rw-r--r-- | gdb/frame.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gdb/frame.c b/gdb/frame.c index e320e4f..650b279 100644 --- a/gdb/frame.c +++ b/gdb/frame.c @@ -381,6 +381,7 @@ frame_id_build_special (CORE_ADDR stack_addr, CORE_ADDR code_addr, CORE_ADDR special_addr) { struct frame_id id = null_frame_id; + id.stack_addr = stack_addr; id.stack_addr_p = 1; id.code_addr = code_addr; @@ -394,6 +395,7 @@ struct frame_id frame_id_build (CORE_ADDR stack_addr, CORE_ADDR code_addr) { struct frame_id id = null_frame_id; + id.stack_addr = stack_addr; id.stack_addr_p = 1; id.code_addr = code_addr; @@ -405,6 +407,7 @@ struct frame_id frame_id_build_wild (CORE_ADDR stack_addr) { struct frame_id id = null_frame_id; + id.stack_addr = stack_addr; id.stack_addr_p = 1; return id; @@ -414,6 +417,7 @@ int frame_id_p (struct frame_id l) { int p; + /* The frame is valid iff it has a valid stack address. */ p = l.stack_addr_p; /* outer_frame_id is also valid. */ @@ -441,6 +445,7 @@ int frame_id_eq (struct frame_id l, struct frame_id r) { int eq; + if (!l.stack_addr_p && l.special_addr_p && !r.stack_addr_p && r.special_addr_p) /* The outermost frame marker is equal to itself. This is the dodgy thing about outer_frame_id, since between execution steps @@ -518,6 +523,7 @@ static int frame_id_inner (struct gdbarch *gdbarch, struct frame_id l, struct frame_id r) { int inner; + if (!l.stack_addr_p || !r.stack_addr_p) /* Like NaN, any operation involving an invalid ID always fails. */ inner = 0; @@ -687,6 +693,7 @@ frame_save_as_regcache (struct frame_info *this_frame) struct regcache *regcache = regcache_xmalloc (get_frame_arch (this_frame), aspace); struct cleanup *cleanups = make_cleanup_regcache_xfree (regcache); + regcache_save (regcache, do_frame_register_read, this_frame); discard_cleanups (cleanups); return regcache; @@ -799,6 +806,7 @@ frame_unwind_register (struct frame_info *frame, int regnum, gdb_byte *buf) CORE_ADDR addr; int realnum; enum lval_type lval; + frame_register_unwind (frame, regnum, &optimized, &lval, &addr, &realnum, buf); } @@ -885,6 +893,7 @@ frame_unwind_register_signed (struct frame_info *frame, int regnum) enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); int size = register_size (gdbarch, regnum); gdb_byte buf[MAX_REGISTER_SIZE]; + frame_unwind_register (frame, regnum, buf); return extract_signed_integer (buf, size, byte_order); } @@ -902,6 +911,7 @@ frame_unwind_register_unsigned (struct frame_info *frame, int regnum) enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); int size = register_size (gdbarch, regnum); gdb_byte buf[MAX_REGISTER_SIZE]; + frame_unwind_register (frame, regnum, buf); return extract_unsigned_integer (buf, size, byte_order); } @@ -921,6 +931,7 @@ put_frame_register (struct frame_info *frame, int regnum, int optim; enum lval_type lval; CORE_ADDR addr; + frame_register (frame, regnum, &optim, &lval, &addr, &realnum, NULL); if (optim) error (_("Attempt to assign to a value that was optimized out.")); @@ -958,6 +969,7 @@ frame_register_read (struct frame_info *frame, int regnum, enum lval_type lval; CORE_ADDR addr; int realnum; + frame_register (frame, regnum, &optimized, &lval, &addr, &realnum, myaddr); return !optimized; @@ -1071,6 +1083,7 @@ static struct frame_info * create_sentinel_frame (struct program_space *pspace, struct regcache *regcache) { struct frame_info *frame = FRAME_OBSTACK_ZALLOC (struct frame_info); + frame->level = -1; frame->pspace = pspace; frame->aspace = get_regcache_aspace (regcache); @@ -1110,6 +1123,7 @@ void * frame_obstack_zalloc (unsigned long size) { void *data = obstack_alloc (&frame_cache_obstack, size); + memset (data, 0, size); return data; } @@ -1123,6 +1137,7 @@ static int unwind_to_current_frame (struct ui_out *ui_out, void *args) { struct frame_info *frame = get_prev_frame (args); + /* A sentinel frame can fail to unwind, e.g., because its PC value lands in somewhere like start. */ if (frame == NULL) @@ -2002,6 +2017,7 @@ get_frame_memory_signed (struct frame_info *this_frame, CORE_ADDR addr, { struct gdbarch *gdbarch = get_frame_arch (this_frame); enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); + return read_memory_integer (addr, len, byte_order); } @@ -2011,6 +2027,7 @@ get_frame_memory_unsigned (struct frame_info *this_frame, CORE_ADDR addr, { struct gdbarch *gdbarch = get_frame_arch (this_frame); enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); + return read_memory_unsigned_integer (addr, len, byte_order); } @@ -2072,6 +2089,7 @@ CORE_ADDR get_frame_sp (struct frame_info *this_frame) { struct gdbarch *gdbarch = get_frame_arch (this_frame); + /* Normality - an architecture that provides a way of obtaining any frame inner-most address. */ if (gdbarch_unwind_sp_p (gdbarch)) |