/* Target-dependent code for the HP PA-RISC architecture.
Copyright (C) 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
- 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007
+ 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
Contributed by the Center for Software Science at the
#include "completer.h"
#include "osabi.h"
#include "gdb_assert.h"
-#include "gdb_stdint.h"
#include "arch-utils.h"
/* For argument passing to the inferior */
#include "symtab.h"
/* This assumes that no garbage lies outside of the lower bits of
value. */
-int
+static int
hppa_sign_extend (unsigned val, unsigned bits)
{
return (int) (val >> (bits - 1) ? (-1 << bits) | val : val);
/* For many immediate values the sign bit is the low bit! */
-int
+static int
hppa_low_hppa_sign_extend (unsigned val, unsigned bits)
{
return (int) ((val & 0x1 ? (-1 << (bits - 1)) : 0) | val >> 1);
if (size > 0)
{
+ struct gdbarch *gdbarch = get_objfile_arch (objfile);
unsigned long tmp;
unsigned i;
char *buf = alloca (size);
Note that when loading a shared library (text_offset != 0) the
unwinds are already relative to the text_offset that will be
passed in. */
- if (gdbarch_tdep (current_gdbarch)->is_elf && text_offset == 0)
+ if (gdbarch_tdep (gdbarch)->is_elf && text_offset == 0)
{
low_text_segment_address = -1;
text_offset = low_text_segment_address;
}
- else if (gdbarch_tdep (current_gdbarch)->solib_get_text_base)
+ else if (gdbarch_tdep (gdbarch)->solib_get_text_base)
{
- text_offset = gdbarch_tdep (current_gdbarch)->solib_get_text_base (objfile);
+ text_offset = gdbarch_tdep (gdbarch)->solib_get_text_base (objfile);
}
bfd_get_section_contents (objfile->obfd, section, buf, 0, size);
struct hppa_objfile_private *priv;
if (hppa_debug)
- fprintf_unfiltered (gdb_stdlog, "{ find_unwind_entry 0x%s -> ",
- paddr_nz (pc));
+ fprintf_unfiltered (gdb_stdlog, "{ find_unwind_entry %s -> ",
+ hex_string (pc));
/* A function at address 0? Not in HP-UX! */
if (pc == (CORE_ADDR) 0)
&& pc <= ui->cache->region_end)
{
if (hppa_debug)
- fprintf_unfiltered (gdb_stdlog, "0x%s (cached) }\n",
- paddr_nz ((uintptr_t) ui->cache));
+ fprintf_unfiltered (gdb_stdlog, "%s (cached) }\n",
+ hex_string ((uintptr_t) ui->cache));
return ui->cache;
}
{
ui->cache = &ui->table[middle];
if (hppa_debug)
- fprintf_unfiltered (gdb_stdlog, "0x%s }\n",
- paddr_nz ((uintptr_t) ui->cache));
+ fprintf_unfiltered (gdb_stdlog, "%s }\n",
+ hex_string ((uintptr_t) ui->cache));
return &ui->table[middle];
}
static int
hppa_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR pc)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
unsigned long status;
unsigned int inst;
char buf[4];
int off;
- status = read_memory_nobpt (pc, buf, 4);
+ status = target_read_memory (pc, buf, 4);
if (status != 0)
return 0;
- inst = extract_unsigned_integer (buf, 4);
+ inst = extract_unsigned_integer (buf, 4, byte_order);
/* The most common way to perform a stack adjustment ldo X(sp),sp
We are destroying a stack frame if the offset is negative. */
return names[i];
}
+/* Map dwarf DBX register numbers to GDB register numbers. */
static int
hppa64_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int reg)
{
- /* r0-r31 and sar map one-to-one. */
+ /* The general registers and the sar are the same in both sets. */
if (reg <= 32)
return reg;
/* fr4-fr31 are mapped from 72 in steps of 2. */
- if (reg >= 72 || reg < 72 + 28 * 2)
+ if (reg >= 72 && reg < 72 + 28 * 2 && !(reg & 1))
return HPPA64_FP4_REGNUM + (reg - 72) / 2;
- error ("Invalid DWARF register num %d.", reg);
+ warning (_("Unmapped DWARF DBX Register #%d encountered."), reg);
return -1;
}
int nargs, struct value **args, CORE_ADDR sp,
int struct_return, CORE_ADDR struct_addr)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+
/* Stack base address at which any pass-by-reference parameters are
stored. */
CORE_ADDR struct_end = 0;
if (write_pass)
write_memory (struct_end - struct_ptr, value_contents (arg),
TYPE_LENGTH (type));
- store_unsigned_integer (param_val, 4, struct_end - struct_ptr);
+ store_unsigned_integer (param_val, 4, byte_order,
+ struct_end - struct_ptr);
}
else if (TYPE_CODE (type) == TYPE_CODE_INT
|| TYPE_CODE (type) == TYPE_CODE_ENUM)
/* Integer value store, right aligned. "unpack_long"
takes care of any sign-extension problems. */
param_len = align_up (TYPE_LENGTH (type), 4);
- store_unsigned_integer (param_val, param_len,
+ store_unsigned_integer (param_val, param_len, byte_order,
unpack_long (type,
value_contents (arg)));
}
if (struct_return)
regcache_cooked_write_unsigned (regcache, 28, struct_addr);
- gp = tdep->find_global_pointer (function);
+ gp = tdep->find_global_pointer (gdbarch, function);
if (gp != 0)
regcache_cooked_write_unsigned (regcache, 19, gp);
function descriptor and return its address instead. If CODE is not a
function entry address, then just return it unchanged. */
static CORE_ADDR
-hppa64_convert_code_addr_to_fptr (CORE_ADDR code)
+hppa64_convert_code_addr_to_fptr (struct gdbarch *gdbarch, CORE_ADDR code)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
struct obj_section *sec, *opd;
sec = find_pc_section (code);
ALL_OBJFILE_OSECTIONS (sec->objfile, opd)
{
if (strcmp (opd->the_bfd_section->name, ".opd") == 0)
- break;
+ break;
}
if (opd < sec->objfile->sections_end)
{
CORE_ADDR addr;
- for (addr = opd->addr; addr < opd->endaddr; addr += 2 * 8)
- {
+ for (addr = obj_section_addr (opd);
+ addr < obj_section_endaddr (opd);
+ addr += 2 * 8)
+ {
ULONGEST opdaddr;
char tmp[8];
if (target_read_memory (addr, tmp, sizeof (tmp)))
break;
- opdaddr = extract_unsigned_integer (tmp, sizeof (tmp));
+ opdaddr = extract_unsigned_integer (tmp, sizeof (tmp), byte_order);
- if (opdaddr == code)
+ if (opdaddr == code)
return addr - 16;
}
}
int struct_return, CORE_ADDR struct_addr)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int i, offset = 0;
CORE_ADDR gp;
safely sign-extend them. */
if (len < 8)
{
- arg = value_cast (builtin_type_int64, arg);
+ arg = value_cast (builtin_type (gdbarch)->builtin_int64, arg);
len = 8;
}
}
ULONGEST codeptr, fptr;
codeptr = unpack_long (type, value_contents (arg));
- fptr = hppa64_convert_code_addr_to_fptr (codeptr);
- store_unsigned_integer (fptrbuf, TYPE_LENGTH (type), fptr);
+ fptr = hppa64_convert_code_addr_to_fptr (gdbarch, codeptr);
+ store_unsigned_integer (fptrbuf, TYPE_LENGTH (type), byte_order,
+ fptr);
valbuf = fptrbuf;
}
else
regcache_cooked_write_unsigned (regcache, HPPA_RET0_REGNUM, struct_addr);
/* Set up GR27 (%dp) to hold the global pointer (gp). */
- gp = tdep->find_global_pointer (function);
+ gp = tdep->find_global_pointer (gdbarch, function);
if (gp != 0)
regcache_cooked_write_unsigned (regcache, HPPA_DP_REGNUM, gp);
/* Handle 32/64-bit struct return conventions. */
static enum return_value_convention
-hppa32_return_value (struct gdbarch *gdbarch,
+hppa32_return_value (struct gdbarch *gdbarch, struct type *func_type,
struct type *type, struct regcache *regcache,
gdb_byte *readbuf, const gdb_byte *writebuf)
{
}
static enum return_value_convention
-hppa64_return_value (struct gdbarch *gdbarch,
+hppa64_return_value (struct gdbarch *gdbarch, struct type *func_type,
struct type *type, struct regcache *regcache,
gdb_byte *readbuf, const gdb_byte *writebuf)
{
{
if (addr & 2)
{
+ struct type *func_ptr_type = builtin_type (gdbarch)->builtin_func_ptr;
CORE_ADDR plabel = addr & ~3;
- return read_memory_typed_address (plabel, builtin_type_void_func_ptr);
+ return read_memory_typed_address (plabel, func_ptr_type);
}
return addr;
case TYPE_CODE_FLT:
return TYPE_LENGTH (type);
case TYPE_CODE_ARRAY:
- return hppa_alignof (TYPE_FIELD_TYPE (type, 0));
+ return hppa_alignof (TYPE_INDEX_TYPE (type));
case TYPE_CODE_STRUCT:
case TYPE_CODE_UNION:
max_align = 1;
static CORE_ADDR
-skip_prologue_hard_way (CORE_ADDR pc, int stop_before_branch)
+skip_prologue_hard_way (struct gdbarch *gdbarch, CORE_ADDR pc,
+ int stop_before_branch)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
char buf[4];
CORE_ADDR orig_pc = pc;
unsigned long inst, stack_remaining, save_gr, save_fr, save_rp, save_sp;
old_save_sp = save_sp;
old_stack_remaining = stack_remaining;
- status = read_memory_nobpt (pc, buf, 4);
- inst = extract_unsigned_integer (buf, 4);
+ status = target_read_memory (pc, buf, 4);
+ inst = extract_unsigned_integer (buf, 4, byte_order);
/* Yow! */
if (status != 0)
FIXME. Can still die if we have a mix of GR and FR argument
stores! */
- if (reg_num >= (gdbarch_ptr_bit (current_gdbarch) == 64 ? 19 : 23)
+ if (reg_num >= (gdbarch_ptr_bit (gdbarch) == 64 ? 19 : 23)
&& reg_num <= 26)
{
- while (reg_num >= (gdbarch_ptr_bit (current_gdbarch) == 64 ? 19 : 23)
+ while (reg_num >= (gdbarch_ptr_bit (gdbarch) == 64 ? 19 : 23)
&& reg_num <= 26)
{
pc += 4;
- status = read_memory_nobpt (pc, buf, 4);
- inst = extract_unsigned_integer (buf, 4);
+ status = target_read_memory (pc, buf, 4);
+ inst = extract_unsigned_integer (buf, 4, byte_order);
if (status != 0)
return pc;
reg_num = inst_saves_gr (inst);
reg_num = inst_saves_fr (inst);
save_fr &= ~(1 << reg_num);
- status = read_memory_nobpt (pc + 4, buf, 4);
- next_inst = extract_unsigned_integer (buf, 4);
+ status = target_read_memory (pc + 4, buf, 4);
+ next_inst = extract_unsigned_integer (buf, 4, byte_order);
/* Yow! */
if (status != 0)
if ((inst & 0xfc000000) == 0x34000000
&& inst_saves_fr (next_inst) >= 4
&& inst_saves_fr (next_inst)
- <= (gdbarch_ptr_bit (current_gdbarch) == 64 ? 11 : 7))
+ <= (gdbarch_ptr_bit (gdbarch) == 64 ? 11 : 7))
{
/* So we drop into the code below in a reasonable state. */
reg_num = inst_saves_fr (next_inst);
never does prologue scheduling. So once we see one, skip past
all of them. */
if (reg_num >= 4
- && reg_num <= (gdbarch_ptr_bit (current_gdbarch) == 64 ? 11 : 7))
+ && reg_num <= (gdbarch_ptr_bit (gdbarch) == 64 ? 11 : 7))
{
while (reg_num >= 4
&& reg_num
- <= (gdbarch_ptr_bit (current_gdbarch) == 64 ? 11 : 7))
+ <= (gdbarch_ptr_bit (gdbarch) == 64 ? 11 : 7))
{
pc += 8;
- status = read_memory_nobpt (pc, buf, 4);
- inst = extract_unsigned_integer (buf, 4);
+ status = target_read_memory (pc, buf, 4);
+ inst = extract_unsigned_integer (buf, 4, byte_order);
if (status != 0)
return pc;
if ((inst & 0xfc000000) != 0x34000000)
break;
- status = read_memory_nobpt (pc + 4, buf, 4);
- next_inst = extract_unsigned_integer (buf, 4);
+ status = target_read_memory (pc + 4, buf, 4);
+ next_inst = extract_unsigned_integer (buf, 4, byte_order);
if (status != 0)
return pc;
reg_num = inst_saves_fr (next_inst);
skip over the branch in that case. */
static CORE_ADDR
-hppa_skip_prologue (CORE_ADDR pc)
+hppa_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
{
unsigned long inst;
int offset;
if (post_prologue_pc != 0)
return max (pc, post_prologue_pc);
else
- return (skip_prologue_hard_way (pc, 1));
+ return (skip_prologue_hard_way (gdbarch, pc, 1));
}
/* Return an unwind entry that falls within the frame's code block. */
+
static struct unwind_table_entry *
-hppa_find_unwind_entry_in_block (struct frame_info *f)
+hppa_find_unwind_entry_in_block (struct frame_info *this_frame)
{
- CORE_ADDR pc = frame_unwind_address_in_block (f, NORMAL_FRAME);
+ CORE_ADDR pc = get_frame_address_in_block (this_frame);
/* FIXME drow/20070101: Calling gdbarch_addr_bits_remove on the
- result of frame_unwind_address_in_block implies a problem.
+ result of get_frame_address_in_block implies a problem.
The bits should have been removed earlier, before the return
- value of frame_pc_unwind. That might be happening already;
+ value of gdbarch_unwind_pc. That might be happening already;
if it isn't, it should be fixed. Then this call can be
removed. */
- pc = gdbarch_addr_bits_remove (get_frame_arch (f), pc);
+ pc = gdbarch_addr_bits_remove (get_frame_arch (this_frame), pc);
return find_unwind_entry (pc);
}
};
static struct hppa_frame_cache *
-hppa_frame_cache (struct frame_info *next_frame, void **this_cache)
+hppa_frame_cache (struct frame_info *this_frame, void **this_cache)
{
- struct gdbarch *gdbarch = get_frame_arch (next_frame);
+ struct gdbarch *gdbarch = get_frame_arch (this_frame);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ int word_size = gdbarch_ptr_bit (gdbarch) / 8;
struct hppa_frame_cache *cache;
long saved_gr_mask;
long saved_fr_mask;
if (hppa_debug)
fprintf_unfiltered (gdb_stdlog, "{ hppa_frame_cache (frame=%d) -> ",
- frame_relative_level(next_frame));
+ frame_relative_level(this_frame));
if ((*this_cache) != NULL)
{
if (hppa_debug)
- fprintf_unfiltered (gdb_stdlog, "base=0x%s (cached) }",
- paddr_nz (((struct hppa_frame_cache *)*this_cache)->base));
+ fprintf_unfiltered (gdb_stdlog, "base=%s (cached) }",
+ paddress (gdbarch, ((struct hppa_frame_cache *)*this_cache)->base));
return (*this_cache);
}
cache = FRAME_OBSTACK_ZALLOC (struct hppa_frame_cache);
(*this_cache) = cache;
- cache->saved_regs = trad_frame_alloc_saved_regs (next_frame);
+ cache->saved_regs = trad_frame_alloc_saved_regs (this_frame);
/* Yow! */
- u = hppa_find_unwind_entry_in_block (next_frame);
+ u = hppa_find_unwind_entry_in_block (this_frame);
if (!u)
{
if (hppa_debug)
in hppa_skip_prologue will return a prologue end that is too early
for us to notice any potential frame adjustments. */
- /* We used to use frame_func_unwind () to locate the beginning of the
- function to pass to skip_prologue (). However, when objects are
- compiled without debug symbols, frame_func_unwind can return the wrong
+ /* We used to use get_frame_func to locate the beginning of the
+ function to pass to skip_prologue. However, when objects are
+ compiled without debug symbols, get_frame_func can return the wrong
function (or 0). We can do better than that by using unwind records.
This only works if the Region_description of the unwind record
indicates that it includes the entry point of the function.
if ((u->Region_description & 0x2) == 0)
start_pc = u->region_start;
else
- start_pc = frame_func_unwind (next_frame, NORMAL_FRAME);
+ start_pc = get_frame_func (this_frame);
- prologue_end = skip_prologue_hard_way (start_pc, 0);
- end_pc = frame_pc_unwind (next_frame);
+ prologue_end = skip_prologue_hard_way (gdbarch, start_pc, 0);
+ end_pc = get_frame_pc (this_frame);
if (prologue_end != 0 && end_pc > prologue_end)
end_pc = prologue_end;
char buf4[4];
long inst;
- if (!safe_frame_unwind_memory (next_frame, pc, buf4,
- sizeof buf4))
+ if (!safe_frame_unwind_memory (this_frame, pc, buf4, sizeof buf4))
{
- error (_("Cannot read instruction at 0x%s."), paddr_nz (pc));
+ error (_("Cannot read instruction at %s."),
+ paddress (gdbarch, pc));
return (*this_cache);
}
- inst = extract_unsigned_integer (buf4, sizeof buf4);
+ inst = extract_unsigned_integer (buf4, sizeof buf4, byte_order);
/* Note the interesting effects of this instruction. */
frame_size += prologue_inst_adjust_sp (inst);
/* The frame base always represents the value of %sp at entry to
the current function (and is thus equivalent to the "saved"
stack pointer. */
- CORE_ADDR this_sp = frame_unwind_register_unsigned (next_frame, HPPA_SP_REGNUM);
+ CORE_ADDR this_sp = get_frame_register_unsigned (this_frame,
+ HPPA_SP_REGNUM);
CORE_ADDR fp;
if (hppa_debug)
- fprintf_unfiltered (gdb_stdlog, " (this_sp=0x%s, pc=0x%s, "
- "prologue_end=0x%s) ",
- paddr_nz (this_sp),
- paddr_nz (frame_pc_unwind (next_frame)),
- paddr_nz (prologue_end));
+ fprintf_unfiltered (gdb_stdlog, " (this_sp=%s, pc=%s, "
+ "prologue_end=%s) ",
+ paddress (gdbarch, this_sp),
+ paddress (gdbarch, get_frame_pc (this_frame)),
+ paddress (gdbarch, prologue_end));
/* Check to see if a frame pointer is available, and use it for
frame unwinding if it is.
TODO: For the HP compiler, maybe we should use the alloca_frame flag
instead of Save_SP. */
- fp = frame_unwind_register_unsigned (next_frame, HPPA_FP_REGNUM);
+ fp = get_frame_register_unsigned (this_frame, HPPA_FP_REGNUM);
if (u->alloca_frame)
fp -= u->Total_frame_size << 3;
- if (frame_pc_unwind (next_frame) >= prologue_end
+ if (get_frame_pc (this_frame) >= prologue_end
&& (u->Save_SP || u->alloca_frame) && fp != 0)
{
cache->base = fp;
if (hppa_debug)
- fprintf_unfiltered (gdb_stdlog, " (base=0x%s) [frame pointer]",
- paddr_nz (cache->base));
+ fprintf_unfiltered (gdb_stdlog, " (base=%s) [frame pointer]",
+ paddress (gdbarch, cache->base));
}
else if (u->Save_SP
&& trad_frame_addr_p (cache->saved_regs, HPPA_SP_REGNUM))
/* Both we're expecting the SP to be saved and the SP has been
saved. The entry SP value is saved at this frame's SP
address. */
- cache->base = read_memory_integer
- (this_sp, gdbarch_ptr_bit (gdbarch) / 8);
+ cache->base = read_memory_integer (this_sp, word_size, byte_order);
if (hppa_debug)
- fprintf_unfiltered (gdb_stdlog, " (base=0x%s) [saved]",
- paddr_nz (cache->base));
+ fprintf_unfiltered (gdb_stdlog, " (base=%s) [saved]",
+ paddress (gdbarch, cache->base));
}
else
{
the SP back. */
cache->base = this_sp - frame_size;
if (hppa_debug)
- fprintf_unfiltered (gdb_stdlog, " (base=0x%s) [unwind adjust]",
- paddr_nz (cache->base));
+ fprintf_unfiltered (gdb_stdlog, " (base=%s) [unwind adjust]",
+ paddress (gdbarch, cache->base));
}
trad_frame_set_value (cache->saved_regs, HPPA_SP_REGNUM, cache->base);
}
else
{
- ULONGEST r31 = frame_unwind_register_unsigned (next_frame, 31);
+ ULONGEST r31 = get_frame_register_unsigned (this_frame, 31);
trad_frame_set_value (cache->saved_regs, HPPA_PCOQ_HEAD_REGNUM, r31);
if (hppa_debug)
fprintf_unfiltered (gdb_stdlog, " (pc=r31) [frame] } ");
}
else
{
- ULONGEST rp = frame_unwind_register_unsigned (next_frame, HPPA_RP_REGNUM);
+ ULONGEST rp = get_frame_register_unsigned (this_frame,
+ HPPA_RP_REGNUM);
trad_frame_set_value (cache->saved_regs, HPPA_PCOQ_HEAD_REGNUM, rp);
if (hppa_debug)
fprintf_unfiltered (gdb_stdlog, " (pc=rp) [frame] } ");
if (u->Save_SP && !trad_frame_addr_p (cache->saved_regs, HPPA_FP_REGNUM)
&& fp_in_r1)
{
- ULONGEST r1 = frame_unwind_register_unsigned (next_frame, 1);
+ ULONGEST r1 = get_frame_register_unsigned (this_frame, 1);
trad_frame_set_value (cache->saved_regs, HPPA_FP_REGNUM, r1);
}
tdep = gdbarch_tdep (gdbarch);
if (tdep->unwind_adjust_stub)
- {
- tdep->unwind_adjust_stub (next_frame, cache->base, cache->saved_regs);
- }
+ tdep->unwind_adjust_stub (this_frame, cache->base, cache->saved_regs);
}
if (hppa_debug)
- fprintf_unfiltered (gdb_stdlog, "base=0x%s }",
- paddr_nz (((struct hppa_frame_cache *)*this_cache)->base));
+ fprintf_unfiltered (gdb_stdlog, "base=%s }",
+ paddress (gdbarch, ((struct hppa_frame_cache *)*this_cache)->base));
return (*this_cache);
}
static void
-hppa_frame_this_id (struct frame_info *next_frame, void **this_cache,
- struct frame_id *this_id)
+hppa_frame_this_id (struct frame_info *this_frame, void **this_cache,
+ struct frame_id *this_id)
{
struct hppa_frame_cache *info;
- CORE_ADDR pc = frame_pc_unwind (next_frame);
+ CORE_ADDR pc = get_frame_pc (this_frame);
struct unwind_table_entry *u;
- info = hppa_frame_cache (next_frame, this_cache);
- u = hppa_find_unwind_entry_in_block (next_frame);
+ info = hppa_frame_cache (this_frame, this_cache);
+ u = hppa_find_unwind_entry_in_block (this_frame);
(*this_id) = frame_id_build (info->base, u->region_start);
}
-static void
-hppa_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 *
+hppa_frame_prev_register (struct frame_info *this_frame,
+ void **this_cache, int regnum)
+{
+ struct hppa_frame_cache *info = hppa_frame_cache (this_frame, this_cache);
+
+ return hppa_frame_prev_register_helper (this_frame, info->saved_regs, regnum);
+}
+
+static int
+hppa_frame_unwind_sniffer (const struct frame_unwind *self,
+ struct frame_info *this_frame, void **this_cache)
{
- struct hppa_frame_cache *info = hppa_frame_cache (next_frame, this_cache);
- hppa_frame_prev_register_helper (next_frame, info->saved_regs, regnum,
- optimizedp, lvalp, addrp, realnump, valuep);
+ if (hppa_find_unwind_entry_in_block (this_frame))
+ return 1;
+
+ return 0;
}
static const struct frame_unwind hppa_frame_unwind =
{
NORMAL_FRAME,
hppa_frame_this_id,
- hppa_frame_prev_register
+ hppa_frame_prev_register,
+ NULL,
+ hppa_frame_unwind_sniffer
};
-static const struct frame_unwind *
-hppa_frame_unwind_sniffer (struct frame_info *next_frame)
-{
- if (hppa_find_unwind_entry_in_block (next_frame))
- return &hppa_frame_unwind;
-
- return NULL;
-}
-
/* This is a generic fallback frame unwinder that kicks in if we fail all
the other ones. Normally we would expect the stub and regular unwinder
to work, but in some cases we might hit a function that just doesn't
identify the stack and pc for the frame. */
static struct hppa_frame_cache *
-hppa_fallback_frame_cache (struct frame_info *next_frame, void **this_cache)
+hppa_fallback_frame_cache (struct frame_info *this_frame, void **this_cache)
{
+ struct gdbarch *gdbarch = get_frame_arch (this_frame);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
struct hppa_frame_cache *cache;
unsigned int frame_size = 0;
int found_rp = 0;
if (hppa_debug)
fprintf_unfiltered (gdb_stdlog,
"{ hppa_fallback_frame_cache (frame=%d) -> ",
- frame_relative_level (next_frame));
+ frame_relative_level (this_frame));
cache = FRAME_OBSTACK_ZALLOC (struct hppa_frame_cache);
(*this_cache) = cache;
- cache->saved_regs = trad_frame_alloc_saved_regs (next_frame);
+ cache->saved_regs = trad_frame_alloc_saved_regs (this_frame);
- start_pc = frame_func_unwind (next_frame, NORMAL_FRAME);
+ start_pc = get_frame_func (this_frame);
if (start_pc)
{
- CORE_ADDR cur_pc = frame_pc_unwind (next_frame);
+ CORE_ADDR cur_pc = get_frame_pc (this_frame);
CORE_ADDR pc;
for (pc = start_pc; pc < cur_pc; pc += 4)
{
unsigned int insn;
- insn = read_memory_unsigned_integer (pc, 4);
+ insn = read_memory_unsigned_integer (pc, 4, byte_order);
frame_size += prologue_inst_adjust_sp (insn);
/* There are limited ways to store the return pointer into the
fprintf_unfiltered (gdb_stdlog, " frame_size=%d, found_rp=%d }\n",
frame_size, found_rp);
- cache->base = frame_unwind_register_unsigned (next_frame, HPPA_SP_REGNUM);
+ cache->base = get_frame_register_unsigned (this_frame, HPPA_SP_REGNUM);
cache->base -= frame_size;
trad_frame_set_value (cache->saved_regs, HPPA_SP_REGNUM, cache->base);
else
{
ULONGEST rp;
- rp = frame_unwind_register_unsigned (next_frame, HPPA_RP_REGNUM);
+ rp = get_frame_register_unsigned (this_frame, HPPA_RP_REGNUM);
trad_frame_set_value (cache->saved_regs, HPPA_PCOQ_HEAD_REGNUM, rp);
}
}
static void
-hppa_fallback_frame_this_id (struct frame_info *next_frame, void **this_cache,
+hppa_fallback_frame_this_id (struct frame_info *this_frame, void **this_cache,
struct frame_id *this_id)
{
struct hppa_frame_cache *info =
- hppa_fallback_frame_cache (next_frame, this_cache);
- (*this_id) = frame_id_build (info->base,
- frame_func_unwind (next_frame, NORMAL_FRAME));
+ hppa_fallback_frame_cache (this_frame, this_cache);
+
+ (*this_id) = frame_id_build (info->base, get_frame_func (this_frame));
}
-static void
-hppa_fallback_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 *
+hppa_fallback_frame_prev_register (struct frame_info *this_frame,
+ void **this_cache, int regnum)
{
struct hppa_frame_cache *info =
- hppa_fallback_frame_cache (next_frame, this_cache);
- hppa_frame_prev_register_helper (next_frame, info->saved_regs, regnum,
- optimizedp, lvalp, addrp, realnump, valuep);
+ hppa_fallback_frame_cache (this_frame, this_cache);
+
+ return hppa_frame_prev_register_helper (this_frame, info->saved_regs, regnum);
}
static const struct frame_unwind hppa_fallback_frame_unwind =
{
NORMAL_FRAME,
hppa_fallback_frame_this_id,
- hppa_fallback_frame_prev_register
+ hppa_fallback_frame_prev_register,
+ NULL,
+ default_frame_sniffer
};
-static const struct frame_unwind *
-hppa_fallback_unwind_sniffer (struct frame_info *next_frame)
-{
- return &hppa_fallback_frame_unwind;
-}
-
/* Stub frames, used for all kinds of call stubs. */
struct hppa_stub_unwind_cache
{
};
static struct hppa_stub_unwind_cache *
-hppa_stub_frame_unwind_cache (struct frame_info *next_frame,
+hppa_stub_frame_unwind_cache (struct frame_info *this_frame,
void **this_cache)
{
- struct gdbarch *gdbarch = get_frame_arch (next_frame);
+ struct gdbarch *gdbarch = get_frame_arch (this_frame);
struct hppa_stub_unwind_cache *info;
struct unwind_table_entry *u;
info = FRAME_OBSTACK_ZALLOC (struct hppa_stub_unwind_cache);
*this_cache = info;
- info->saved_regs = trad_frame_alloc_saved_regs (next_frame);
+ info->saved_regs = trad_frame_alloc_saved_regs (this_frame);
- info->base = frame_unwind_register_unsigned (next_frame, HPPA_SP_REGNUM);
+ info->base = get_frame_register_unsigned (this_frame, HPPA_SP_REGNUM);
if (gdbarch_osabi (gdbarch) == GDB_OSABI_HPUX_SOM)
{
/* HPUX uses export stubs in function calls; the export stub clobbers
the return value of the caller, and, later restores it from the
stack. */
- u = find_unwind_entry (frame_pc_unwind (next_frame));
+ u = find_unwind_entry (get_frame_pc (this_frame));
if (u && u->stub_unwind.stub_type == EXPORT)
{
}
static void
-hppa_stub_frame_this_id (struct frame_info *next_frame,
+hppa_stub_frame_this_id (struct frame_info *this_frame,
void **this_prologue_cache,
struct frame_id *this_id)
{
struct hppa_stub_unwind_cache *info
- = hppa_stub_frame_unwind_cache (next_frame, this_prologue_cache);
+ = hppa_stub_frame_unwind_cache (this_frame, this_prologue_cache);
if (info)
- *this_id = frame_id_build (info->base,
- frame_func_unwind (next_frame, NORMAL_FRAME));
- else
- *this_id = null_frame_id;
+ *this_id = frame_id_build (info->base, get_frame_func (this_frame));
}
-static void
-hppa_stub_frame_prev_register (struct frame_info *next_frame,
- void **this_prologue_cache,
- int regnum, int *optimizedp,
- enum lval_type *lvalp, CORE_ADDR *addrp,
- int *realnump, gdb_byte *valuep)
+static struct value *
+hppa_stub_frame_prev_register (struct frame_info *this_frame,
+ void **this_prologue_cache, int regnum)
{
struct hppa_stub_unwind_cache *info
- = hppa_stub_frame_unwind_cache (next_frame, this_prologue_cache);
+ = hppa_stub_frame_unwind_cache (this_frame, this_prologue_cache);
- if (info)
- hppa_frame_prev_register_helper (next_frame, info->saved_regs, regnum,
- optimizedp, lvalp, addrp, realnump,
- valuep);
- else
+ if (info == NULL)
error (_("Requesting registers from null frame."));
-}
-static const struct frame_unwind hppa_stub_frame_unwind = {
- NORMAL_FRAME,
- hppa_stub_frame_this_id,
- hppa_stub_frame_prev_register
-};
+ return hppa_frame_prev_register_helper (this_frame, info->saved_regs, regnum);
+}
-static const struct frame_unwind *
-hppa_stub_unwind_sniffer (struct frame_info *next_frame)
+static int
+hppa_stub_unwind_sniffer (const struct frame_unwind *self,
+ struct frame_info *this_frame,
+ void **this_cache)
{
- CORE_ADDR pc = frame_unwind_address_in_block (next_frame, NORMAL_FRAME);
- struct gdbarch *gdbarch = get_frame_arch (next_frame);
+ CORE_ADDR pc = get_frame_address_in_block (this_frame);
+ struct gdbarch *gdbarch = get_frame_arch (this_frame);
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
if (pc == 0
|| (tdep->in_solib_call_trampoline != NULL
- && tdep->in_solib_call_trampoline (pc, NULL))
+ && tdep->in_solib_call_trampoline (gdbarch, pc, NULL))
|| gdbarch_in_solib_return_trampoline (gdbarch, pc, NULL))
- return &hppa_stub_frame_unwind;
- return NULL;
+ return 1;
+ return 0;
}
+static const struct frame_unwind hppa_stub_frame_unwind = {
+ NORMAL_FRAME,
+ hppa_stub_frame_this_id,
+ hppa_stub_frame_prev_register,
+ NULL,
+ hppa_stub_unwind_sniffer
+};
+
static struct frame_id
-hppa_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *next_frame)
+hppa_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
{
- return frame_id_build (frame_unwind_register_unsigned (next_frame,
- HPPA_SP_REGNUM),
- frame_pc_unwind (next_frame));
+ return frame_id_build (get_frame_register_unsigned (this_frame,
+ HPPA_SP_REGNUM),
+ get_frame_pc (this_frame));
}
CORE_ADDR
printf_unfiltered ("unwind_table_entry (0x%lx):\n", (unsigned long)u);
- printf_unfiltered ("\tregion_start = ");
- print_address (u->region_start, gdb_stdout);
+ printf_unfiltered ("\tregion_start = %s\n", hex_string (u->region_start));
gdb_flush (gdb_stdout);
- printf_unfiltered ("\n\tregion_end = ");
- print_address (u->region_end, gdb_stdout);
+ printf_unfiltered ("\tregion_end = %s\n", hex_string (u->region_end));
gdb_flush (gdb_stdout);
#define pif(FLD) if (u->FLD) printf_unfiltered (" "#FLD);
hppa32_register_type (struct gdbarch *gdbarch, int regnum)
{
if (regnum < HPPA_FP4_REGNUM)
- return builtin_type_uint32;
+ return builtin_type (gdbarch)->builtin_uint32;
else
- return builtin_type_ieee_single;
+ return builtin_type (gdbarch)->builtin_float;
}
static struct type *
hppa64_register_type (struct gdbarch *gdbarch, int regnum)
{
if (regnum < HPPA64_FP4_REGNUM)
- return builtin_type_uint64;
+ return builtin_type (gdbarch)->builtin_uint64;
else
- return builtin_type_ieee_double;
+ return builtin_type (gdbarch)->builtin_double;
}
/* Return non-zero if REGNUM is not a register available to the user
}
static CORE_ADDR
-hppa_smash_text_address (CORE_ADDR addr)
+hppa_smash_text_address (struct gdbarch *gdbarch, CORE_ADDR addr)
{
/* The low two bits of the PC on the PA contain the privilege level.
Some genius implementing a (non-GCC) compiler apparently decided
hppa_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
int regnum, gdb_byte *buf)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
ULONGEST tmp;
regcache_raw_read_unsigned (regcache, regnum, &tmp);
if (regnum == HPPA_PCOQ_HEAD_REGNUM || regnum == HPPA_PCOQ_TAIL_REGNUM)
tmp &= ~0x3;
- store_unsigned_integer (buf, sizeof tmp, tmp);
+ store_unsigned_integer (buf, sizeof tmp, byte_order, tmp);
}
static CORE_ADDR
-hppa_find_global_pointer (struct value *function)
+hppa_find_global_pointer (struct gdbarch *gdbarch, struct value *function)
{
return 0;
}
-void
-hppa_frame_prev_register_helper (struct frame_info *next_frame,
+struct value *
+hppa_frame_prev_register_helper (struct frame_info *this_frame,
struct trad_frame_saved_reg saved_regs[],
- int regnum, int *optimizedp,
- enum lval_type *lvalp, CORE_ADDR *addrp,
- int *realnump, gdb_byte *valuep)
+ int regnum)
{
- struct gdbarch *arch = get_frame_arch (next_frame);
+ struct gdbarch *arch = get_frame_arch (this_frame);
+ enum bfd_endian byte_order = gdbarch_byte_order (arch);
if (regnum == HPPA_PCOQ_TAIL_REGNUM)
{
- if (valuep)
- {
- int size = register_size (arch, HPPA_PCOQ_HEAD_REGNUM);
- CORE_ADDR pc;
-
- trad_frame_get_prev_register (next_frame, saved_regs,
- HPPA_PCOQ_HEAD_REGNUM, optimizedp,
- lvalp, addrp, realnump, valuep);
-
- pc = extract_unsigned_integer (valuep, size);
- store_unsigned_integer (valuep, size, pc + 4);
- }
+ int size = register_size (arch, HPPA_PCOQ_HEAD_REGNUM);
+ CORE_ADDR pc;
+ struct value *pcoq_val =
+ trad_frame_get_prev_register (this_frame, saved_regs,
+ HPPA_PCOQ_HEAD_REGNUM);
- /* It's a computed value. */
- *optimizedp = 0;
- *lvalp = not_lval;
- *addrp = 0;
- *realnump = -1;
- return;
+ pc = extract_unsigned_integer (value_contents_all (pcoq_val),
+ size, byte_order);
+ return frame_unwind_got_constant (this_frame, regnum, pc + 4);
}
/* Make sure the "flags" register is zero in all unwound frames.
with it here. This shouldn't affect other systems since those
should provide zero for the "flags" register anyway. */
if (regnum == HPPA_FLAGS_REGNUM)
- {
- if (valuep)
- store_unsigned_integer (valuep, register_size (arch, regnum), 0);
-
- /* It's a computed value. */
- *optimizedp = 0;
- *lvalp = not_lval;
- *addrp = 0;
- *realnump = -1;
- return;
- }
+ return frame_unwind_got_constant (this_frame, regnum, 0);
- trad_frame_get_prev_register (next_frame, saved_regs, regnum,
- optimizedp, lvalp, addrp, realnump, valuep);
+ return trad_frame_get_prev_register (this_frame, saved_regs, regnum);
}
\f
matched. */
static int
-hppa_match_insns (CORE_ADDR pc, struct insn_pattern *pattern,
- unsigned int *insn)
+hppa_match_insns (struct gdbarch *gdbarch, CORE_ADDR pc,
+ struct insn_pattern *pattern, unsigned int *insn)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
CORE_ADDR npc = pc;
int i;
{
gdb_byte buf[HPPA_INSN_SIZE];
- read_memory_nobpt (npc, buf, HPPA_INSN_SIZE);
- insn[i] = extract_unsigned_integer (buf, HPPA_INSN_SIZE);
+ target_read_memory (npc, buf, HPPA_INSN_SIZE);
+ insn[i] = extract_unsigned_integer (buf, HPPA_INSN_SIZE, byte_order);
if ((insn[i] & pattern[i].mask) == pattern[i].data)
npc += 4;
else
instruction scheme. */
static int
-hppa_match_insns_relaxed (CORE_ADDR pc, struct insn_pattern *pattern,
- unsigned int *insn)
+hppa_match_insns_relaxed (struct gdbarch *gdbarch, CORE_ADDR pc,
+ struct insn_pattern *pattern, unsigned int *insn)
{
int offset, len = 0;
len++;
for (offset = 0; offset < len; offset++)
- if (hppa_match_insns (pc - offset * HPPA_INSN_SIZE, pattern, insn))
+ if (hppa_match_insns (gdbarch, pc - offset * HPPA_INSN_SIZE,
+ pattern, insn))
return 1;
return 0;
}
int
-hppa_in_solib_call_trampoline (CORE_ADDR pc, char *name)
+hppa_in_solib_call_trampoline (struct gdbarch *gdbarch,
+ CORE_ADDR pc, char *name)
{
unsigned int insn[HPPA_MAX_INSN_PATTERN_LEN];
struct unwind_table_entry *u;
if (u != NULL)
return 0;
- return (hppa_match_insns_relaxed (pc, hppa_import_stub, insn)
- || hppa_match_insns_relaxed (pc, hppa_import_pic_stub, insn)
- || hppa_match_insns_relaxed (pc, hppa_long_branch_stub, insn)
- || hppa_match_insns_relaxed (pc, hppa_long_branch_pic_stub, insn));
+ return
+ (hppa_match_insns_relaxed (gdbarch, pc, hppa_import_stub, insn)
+ || hppa_match_insns_relaxed (gdbarch, pc, hppa_import_pic_stub, insn)
+ || hppa_match_insns_relaxed (gdbarch, pc, hppa_long_branch_stub, insn)
+ || hppa_match_insns_relaxed (gdbarch, pc,
+ hppa_long_branch_pic_stub, insn));
}
/* This code skips several kind of "trampolines" used on PA-RISC
CORE_ADDR
hppa_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc)
{
+ struct gdbarch *gdbarch = get_frame_arch (frame);
+ struct type *func_ptr_type = builtin_type (gdbarch)->builtin_func_ptr;
+
unsigned int insn[HPPA_MAX_INSN_PATTERN_LEN];
int dp_rel;
/* PLABELs have bit 30 set; if it's a PLABEL, then dereference it. */
if (pc & 0x2)
- pc = read_memory_typed_address (pc & ~0x3, builtin_type_void_func_ptr);
+ pc = read_memory_typed_address (pc & ~0x3, func_ptr_type);
return pc;
}
- dp_rel = hppa_match_insns (pc, hppa_import_stub, insn);
- if (dp_rel || hppa_match_insns (pc, hppa_import_pic_stub, insn))
+ dp_rel = hppa_match_insns (gdbarch, pc, hppa_import_stub, insn);
+ if (dp_rel || hppa_match_insns (gdbarch, pc, hppa_import_pic_stub, insn))
{
/* Extract the target address from the addil/ldw sequence. */
pc = hppa_extract_21 (insn[0]) + hppa_extract_14 (insn[1]);
if (in_plt_section (pc, NULL))
{
- pc = read_memory_typed_address (pc, builtin_type_void_func_ptr);
+ pc = read_memory_typed_address (pc, func_ptr_type);
/* If the PLT slot has not yet been resolved, the target will be
the PLT stub. */
if (in_plt_section (pc, NULL))
{
/* Sanity check: are we pointing to the PLT stub? */
- if (!hppa_match_insns (pc, hppa_plt_stub, insn))
+ if (!hppa_match_insns (gdbarch, pc, hppa_plt_stub, insn))
{
- warning (_("Cannot resolve PLT stub at 0x%s."), paddr_nz (pc));
+ warning (_("Cannot resolve PLT stub at %s."),
+ paddress (gdbarch, pc));
return 0;
}
/* This should point to the fixup routine. */
- pc = read_memory_typed_address (pc + 8, builtin_type_void_func_ptr);
+ pc = read_memory_typed_address (pc + 8, func_ptr_type);
}
}
set_gdbarch_num_regs (gdbarch, hppa64_num_regs);
set_gdbarch_register_name (gdbarch, hppa64_register_name);
set_gdbarch_register_type (gdbarch, hppa64_register_type);
- set_gdbarch_dwarf_reg_to_regnum (gdbarch, hppa64_dwarf_reg_to_regnum);
set_gdbarch_dwarf2_reg_to_regnum (gdbarch, hppa64_dwarf_reg_to_regnum);
set_gdbarch_cannot_store_register (gdbarch,
hppa64_cannot_store_register);
set_gdbarch_pseudo_register_read (gdbarch, hppa_pseudo_register_read);
/* Frame unwind methods. */
- set_gdbarch_unwind_dummy_id (gdbarch, hppa_unwind_dummy_id);
+ set_gdbarch_dummy_id (gdbarch, hppa_dummy_id);
set_gdbarch_unwind_pc (gdbarch, hppa_unwind_pc);
/* Hook in ABI-specific overrides, if they have been registered. */
gdbarch_init_osabi (info, gdbarch);
/* Hook in the default unwinders. */
- frame_unwind_append_sniffer (gdbarch, hppa_stub_unwind_sniffer);
- frame_unwind_append_sniffer (gdbarch, hppa_frame_unwind_sniffer);
- frame_unwind_append_sniffer (gdbarch, hppa_fallback_unwind_sniffer);
+ frame_unwind_append_unwinder (gdbarch, &hppa_stub_frame_unwind);
+ frame_unwind_append_unwinder (gdbarch, &hppa_frame_unwind);
+ frame_unwind_append_unwinder (gdbarch, &hppa_fallback_frame_unwind);
return gdbarch;
}
fprintf_unfiltered (file, "elf = %s\n", tdep->is_elf ? "yes" : "no");
}
+/* Provide a prototype to silence -Wmissing-prototypes. */
+extern initialize_file_ftype _initialize_hppa_tdep;
+
void
_initialize_hppa_tdep (void)
{
projects / deliverable / binutils-gdb.git / blobdiff