/* Normal frames. */
static struct i386_frame_cache *
-i386_frame_cache (struct frame_info *next_frame, void **this_cache)
+i386_frame_cache (struct frame_info *this_frame, void **this_cache)
{
struct i386_frame_cache *cache;
gdb_byte buf[4];
They (usually) share their frame pointer with the frame that was
in progress when the signal occurred. */
- frame_unwind_register (next_frame, I386_EBP_REGNUM, buf);
+ get_frame_register (this_frame, I386_EBP_REGNUM, buf);
cache->base = extract_unsigned_integer (buf, 4);
if (cache->base == 0)
return cache;
/* For normal frames, %eip is stored at 4(%ebp). */
cache->saved_regs[I386_EIP_REGNUM] = 4;
- cache->pc = frame_func_unwind (next_frame, NORMAL_FRAME);
+ cache->pc = get_frame_func (this_frame);
if (cache->pc != 0)
- i386_analyze_prologue (cache->pc, frame_pc_unwind (next_frame), cache);
+ i386_analyze_prologue (cache->pc, get_frame_pc (this_frame), cache);
if (cache->stack_align)
{
/* Saved stack pointer has been saved in %ecx. */
- frame_unwind_register (next_frame, I386_ECX_REGNUM, buf);
+ get_frame_register (this_frame, I386_ECX_REGNUM, buf);
cache->saved_sp = extract_unsigned_integer(buf, 4);
}
}
else
{
- frame_unwind_register (next_frame, I386_ESP_REGNUM, buf);
+ get_frame_register (this_frame, I386_ESP_REGNUM, buf);
cache->base = extract_unsigned_integer (buf, 4) + cache->sp_offset;
}
}
}
static void
-i386_frame_this_id (struct frame_info *next_frame, void **this_cache,
+i386_frame_this_id (struct frame_info *this_frame, void **this_cache,
struct frame_id *this_id)
{
- struct i386_frame_cache *cache = i386_frame_cache (next_frame, this_cache);
+ struct i386_frame_cache *cache = i386_frame_cache (this_frame, this_cache);
/* This marks the outermost frame. */
if (cache->base == 0)
(*this_id) = frame_id_build (cache->base + 8, cache->pc);
}
-static void
-i386_frame_prev_register (struct frame_info *next_frame, void **this_cache,
- int regnum, int *optimizedp,
- enum lval_type *lvalp, CORE_ADDR *addrp,
- int *realnump, gdb_byte *valuep)
+static struct value *
+i386_frame_prev_register (struct frame_info *this_frame, void **this_cache,
+ int regnum)
{
- struct i386_frame_cache *cache = i386_frame_cache (next_frame, this_cache);
+ struct i386_frame_cache *cache = i386_frame_cache (this_frame, this_cache);
gdb_assert (regnum >= 0);
if (regnum == I386_EFLAGS_REGNUM)
{
- *optimizedp = 0;
- *lvalp = not_lval;
- *addrp = 0;
- *realnump = -1;
- if (valuep)
- {
- ULONGEST val;
+ ULONGEST val;
- /* Clear the direction flag. */
- val = frame_unwind_register_unsigned (next_frame,
- I386_EFLAGS_REGNUM);
- val &= ~(1 << 10);
- store_unsigned_integer (valuep, 4, val);
- }
-
- return;
+ val = get_frame_register_unsigned (this_frame, regnum);
+ val &= ~(1 << 10);
+ return frame_unwind_got_constant (this_frame, regnum, val);
}
if (regnum == I386_EIP_REGNUM && cache->pc_in_eax)
- {
- *optimizedp = 0;
- *lvalp = lval_register;
- *addrp = 0;
- *realnump = I386_EAX_REGNUM;
- if (valuep)
- frame_unwind_register (next_frame, (*realnump), valuep);
- return;
- }
+ return frame_unwind_got_register (this_frame, regnum, I386_EAX_REGNUM);
if (regnum == I386_ESP_REGNUM && cache->saved_sp)
- {
- *optimizedp = 0;
- *lvalp = not_lval;
- *addrp = 0;
- *realnump = -1;
- if (valuep)
- {
- /* Store the value. */
- store_unsigned_integer (valuep, 4, cache->saved_sp);
- }
- return;
- }
+ return frame_unwind_got_constant (this_frame, regnum, cache->saved_sp);
if (regnum < I386_NUM_SAVED_REGS && cache->saved_regs[regnum] != -1)
- {
- *optimizedp = 0;
- *lvalp = lval_memory;
- *addrp = cache->saved_regs[regnum];
- *realnump = -1;
- if (valuep)
- {
- /* Read the value in from memory. */
- read_memory (*addrp, valuep,
- register_size (get_frame_arch (next_frame), regnum));
- }
- return;
- }
+ return frame_unwind_got_memory (this_frame, regnum,
+ cache->saved_regs[regnum]);
- *optimizedp = 0;
- *lvalp = lval_register;
- *addrp = 0;
- *realnump = regnum;
- if (valuep)
- frame_unwind_register (next_frame, (*realnump), valuep);
+ return frame_unwind_got_register (this_frame, regnum, regnum);
}
static const struct frame_unwind i386_frame_unwind =
{
NORMAL_FRAME,
i386_frame_this_id,
- i386_frame_prev_register
+ i386_frame_prev_register,
+ NULL,
+ default_frame_sniffer
};
-
-static const struct frame_unwind *
-i386_frame_sniffer (struct frame_info *next_frame)
-{
- return &i386_frame_unwind;
-}
\f
/* Signal trampolines. */
static struct i386_frame_cache *
-i386_sigtramp_frame_cache (struct frame_info *next_frame, void **this_cache)
+i386_sigtramp_frame_cache (struct frame_info *this_frame, void **this_cache)
{
struct i386_frame_cache *cache;
- struct gdbarch_tdep *tdep = gdbarch_tdep (get_frame_arch (next_frame));
+ struct gdbarch_tdep *tdep = gdbarch_tdep (get_frame_arch (this_frame));
CORE_ADDR addr;
gdb_byte buf[4];
cache = i386_alloc_frame_cache ();
- frame_unwind_register (next_frame, I386_ESP_REGNUM, buf);
+ get_frame_register (this_frame, I386_ESP_REGNUM, buf);
cache->base = extract_unsigned_integer (buf, 4) - 4;
- addr = tdep->sigcontext_addr (next_frame);
+ addr = tdep->sigcontext_addr (this_frame);
if (tdep->sc_reg_offset)
{
int i;
}
static void
-i386_sigtramp_frame_this_id (struct frame_info *next_frame, void **this_cache,
+i386_sigtramp_frame_this_id (struct frame_info *this_frame, void **this_cache,
struct frame_id *this_id)
{
struct i386_frame_cache *cache =
- i386_sigtramp_frame_cache (next_frame, this_cache);
+ i386_sigtramp_frame_cache (this_frame, this_cache);
/* See the end of i386_push_dummy_call. */
- (*this_id) = frame_id_build (cache->base + 8, frame_pc_unwind (next_frame));
+ (*this_id) = frame_id_build (cache->base + 8, get_frame_pc (this_frame));
}
-static void
-i386_sigtramp_frame_prev_register (struct frame_info *next_frame,
- void **this_cache,
- int regnum, int *optimizedp,
- enum lval_type *lvalp, CORE_ADDR *addrp,
- int *realnump, gdb_byte *valuep)
+static struct value *
+i386_sigtramp_frame_prev_register (struct frame_info *this_frame,
+ void **this_cache, int regnum)
{
/* Make sure we've initialized the cache. */
- i386_sigtramp_frame_cache (next_frame, this_cache);
+ i386_sigtramp_frame_cache (this_frame, this_cache);
- i386_frame_prev_register (next_frame, this_cache, regnum,
- optimizedp, lvalp, addrp, realnump, valuep);
+ return i386_frame_prev_register (this_frame, this_cache, regnum);
}
-static const struct frame_unwind i386_sigtramp_frame_unwind =
-{
- SIGTRAMP_FRAME,
- i386_sigtramp_frame_this_id,
- i386_sigtramp_frame_prev_register
-};
-
-static const struct frame_unwind *
-i386_sigtramp_frame_sniffer (struct frame_info *next_frame)
+static int
+i386_sigtramp_frame_sniffer (const struct frame_unwind *self,
+ struct frame_info *this_frame,
+ void **this_prologue_cache)
{
- struct gdbarch_tdep *tdep = gdbarch_tdep (get_frame_arch (next_frame));
+ struct gdbarch_tdep *tdep = gdbarch_tdep (get_frame_arch (this_frame));
/* We shouldn't even bother if we don't have a sigcontext_addr
handler. */
if (tdep->sigcontext_addr == NULL)
- return NULL;
+ return 0;
if (tdep->sigtramp_p != NULL)
{
- if (tdep->sigtramp_p (next_frame))
- return &i386_sigtramp_frame_unwind;
+ if (tdep->sigtramp_p (this_frame))
+ return 1;
}
if (tdep->sigtramp_start != 0)
{
- CORE_ADDR pc = frame_pc_unwind (next_frame);
+ CORE_ADDR pc = get_frame_pc (this_frame);
gdb_assert (tdep->sigtramp_end != 0);
if (pc >= tdep->sigtramp_start && pc < tdep->sigtramp_end)
- return &i386_sigtramp_frame_unwind;
+ return 1;
}
- return NULL;
+ return 0;
}
+
+static const struct frame_unwind i386_sigtramp_frame_unwind =
+{
+ SIGTRAMP_FRAME,
+ i386_sigtramp_frame_this_id,
+ i386_sigtramp_frame_prev_register,
+ NULL,
+ i386_sigtramp_frame_sniffer
+};
\f
static CORE_ADDR
-i386_frame_base_address (struct frame_info *next_frame, void **this_cache)
+i386_frame_base_address (struct frame_info *this_frame, void **this_cache)
{
- struct i386_frame_cache *cache = i386_frame_cache (next_frame, this_cache);
+ struct i386_frame_cache *cache = i386_frame_cache (this_frame, this_cache);
return cache->base;
}
};
static struct frame_id
-i386_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *next_frame)
+i386_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
{
- gdb_byte buf[4];
CORE_ADDR fp;
- frame_unwind_register (next_frame, I386_EBP_REGNUM, buf);
- fp = extract_unsigned_integer (buf, 4);
+ fp = get_frame_register_unsigned (this_frame, I386_EBP_REGNUM);
/* See the end of i386_push_dummy_call. */
- return frame_id_build (fp + 8, frame_pc_unwind (next_frame));
+ return frame_id_build (fp + 8, get_frame_pc (this_frame));
}
\f
/* MarkK wrote: This "+ 8" is all over the place:
(i386_frame_this_id, i386_sigtramp_frame_this_id,
- i386_unwind_dummy_id). It's there, since all frame unwinders for
+ i386_dummy_id). It's there, since all frame unwinders for
a given target have to agree (within a certain margin) on the
definition of the stack address of a frame. Otherwise
frame_id_inner() won't work correctly. Since DWARF2/GCC uses the
}
\f
-/* Return whether the frame preceding NEXT_FRAME corresponds to a
- sigtramp routine. */
+/* Return whether the THIS_FRAME corresponds to a sigtramp
+ routine. */
static int
-i386_sigtramp_p (struct frame_info *next_frame)
+i386_sigtramp_p (struct frame_info *this_frame)
{
- CORE_ADDR pc = frame_pc_unwind (next_frame);
+ CORE_ADDR pc = get_frame_pc (this_frame);
char *name;
find_pc_partial_function (pc, &name, NULL, NULL);
/* System V Release 4 (SVR4). */
-/* Return whether the frame preceding NEXT_FRAME corresponds to a SVR4
- sigtramp routine. */
+/* Return whether THIS_FRAME corresponds to a SVR4 sigtramp
+ routine. */
static int
-i386_svr4_sigtramp_p (struct frame_info *next_frame)
+i386_svr4_sigtramp_p (struct frame_info *this_frame)
{
- CORE_ADDR pc = frame_pc_unwind (next_frame);
+ CORE_ADDR pc = get_frame_pc (this_frame);
char *name;
/* UnixWare uses _sigacthandler. The origin of the other symbols is
|| strcmp ("sigvechandler", name) == 0));
}
-/* Assuming NEXT_FRAME is for a frame following a SVR4 sigtramp
- routine, return the address of the associated sigcontext (ucontext)
- structure. */
+/* Assuming THIS_FRAME is for a SVR4 sigtramp routine, return the
+ address of the associated sigcontext (ucontext) structure. */
static CORE_ADDR
-i386_svr4_sigcontext_addr (struct frame_info *next_frame)
+i386_svr4_sigcontext_addr (struct frame_info *this_frame)
{
gdb_byte buf[4];
CORE_ADDR sp;
- frame_unwind_register (next_frame, I386_ESP_REGNUM, buf);
+ get_frame_register (this_frame, I386_ESP_REGNUM, buf);
sp = extract_unsigned_integer (buf, 4);
return read_memory_unsigned_integer (sp + 8, 4);
set_gdbarch_print_insn (gdbarch, i386_print_insn);
- set_gdbarch_unwind_dummy_id (gdbarch, i386_unwind_dummy_id);
+ set_gdbarch_dummy_id (gdbarch, i386_dummy_id);
set_gdbarch_unwind_pc (gdbarch, i386_unwind_pc);
set_gdbarch_fetch_pointer_argument (gdbarch, i386_fetch_pointer_argument);
/* Hook in the DWARF CFI frame unwinder. */
- frame_unwind_append_sniffer (gdbarch, dwarf2_frame_sniffer);
+ dwarf2_append_unwinders (gdbarch);
frame_base_set_default (gdbarch, &i386_frame_base);
/* Hook in ABI-specific overrides, if they have been registered. */
gdbarch_init_osabi (info, gdbarch);
- frame_unwind_append_sniffer (gdbarch, i386_sigtramp_frame_sniffer);
- frame_unwind_append_sniffer (gdbarch, i386_frame_sniffer);
+ frame_unwind_append_unwinder (gdbarch, &i386_sigtramp_frame_unwind);
+ frame_unwind_append_unwinder (gdbarch, &i386_frame_unwind);
/* If we have a register mapping, enable the generic core file
support, unless it has already been enabled. */
projects / deliverable / binutils-gdb.git / blobdiff