/* For argument passing to the inferior */
#include "symtab.h"
#include "infcall.h"
+#include "dis-asm.h"
#ifdef USG
#include <sys/types.h>
#include "target.h"
#include "symfile.h"
#include "objfiles.h"
+#include "hppa-tdep.h"
/* Some local constants. */
-static const int hppa_num_regs = 128;
+static const int hppa32_num_regs = 128;
+static const int hppa64_num_regs = 96;
+
+static const int hppa64_call_dummy_breakpoint_offset = 22 * 4;
+
+/* DEPRECATED_CALL_DUMMY_LENGTH is computed based on the size of a
+ word on the target machine, not the size of an instruction. Since
+ a word on this target holds two instructions we have to divide the
+ instruction size by two to get the word size of the dummy. */
+static const int hppa32_call_dummy_length = INSTRUCTION_SIZE * 28;
+static const int hppa64_call_dummy_length = INSTRUCTION_SIZE * 26 / 2;
+
+/* Get at various relevent fields of an instruction word. */
+#define MASK_5 0x1f
+#define MASK_11 0x7ff
+#define MASK_14 0x3fff
+#define MASK_21 0x1fffff
+
+/* Define offsets into the call dummy for the target function address.
+ See comments related to CALL_DUMMY for more info. */
+#define FUNC_LDIL_OFFSET (INSTRUCTION_SIZE * 9)
+#define FUNC_LDO_OFFSET (INSTRUCTION_SIZE * 10)
+
+/* Define offsets into the call dummy for the _sr4export address.
+ See comments related to CALL_DUMMY for more info. */
+#define SR4EXPORT_LDIL_OFFSET (INSTRUCTION_SIZE * 12)
+#define SR4EXPORT_LDO_OFFSET (INSTRUCTION_SIZE * 13)
/* To support detection of the pseudo-initial frame
that threads have. */
#define THREAD_INITIAL_FRAME_SYMBOL "__pthread_exit"
#define THREAD_INITIAL_FRAME_SYM_LEN sizeof(THREAD_INITIAL_FRAME_SYMBOL)
+/* Sizes (in bytes) of the native unwind entries. */
+#define UNWIND_ENTRY_SIZE 16
+#define STUB_UNWIND_ENTRY_SIZE 8
+
+static int get_field (unsigned word, int from, int to);
+
static int extract_5_load (unsigned int);
static unsigned extract_5R_store (unsigned int);
static int hppa_alignof (struct type *);
-/* To support multi-threading and stepping. */
-int hppa_prepare_to_proceed ();
-
static int prologue_inst_adjust_sp (unsigned long);
static int is_branch (unsigned long);
int hppa_in_solib_return_trampoline (CORE_ADDR pc, char *name);
CORE_ADDR hppa_saved_pc_after_call (struct frame_info *frame);
int hppa_inner_than (CORE_ADDR lhs, CORE_ADDR rhs);
-CORE_ADDR hppa_stack_align (CORE_ADDR sp);
+CORE_ADDR hppa32_stack_align (CORE_ADDR sp);
+CORE_ADDR hppa64_stack_align (CORE_ADDR sp);
int hppa_pc_requires_run_before_use (CORE_ADDR pc);
int hppa_instruction_nullified (void);
int hppa_register_raw_size (int reg_nr);
int hppa_register_byte (int reg_nr);
-struct type * hppa_register_virtual_type (int reg_nr);
+struct type * hppa32_register_virtual_type (int reg_nr);
+struct type * hppa64_register_virtual_type (int reg_nr);
void hppa_store_struct_return (CORE_ADDR addr, CORE_ADDR sp);
-void hppa_extract_return_value (struct type *type, char *regbuf, char *valbuf);
-int hppa_use_struct_convention (int gcc_p, struct type *type);
-void hppa_store_return_value (struct type *type, char *valbuf);
+void hppa32_extract_return_value (struct type *type, char *regbuf,
+ char *valbuf);
+void hppa64_extract_return_value (struct type *type, char *regbuf,
+ char *valbuf);
+int hppa32_use_struct_convention (int gcc_p, struct type *type);
+int hppa64_use_struct_convention (int gcc_p, struct type *type);
+void hppa32_store_return_value (struct type *type, char *valbuf);
+void hppa64_store_return_value (struct type *type, char *valbuf);
CORE_ADDR hppa_extract_struct_value_address (char *regbuf);
int hppa_cannot_store_register (int regnum);
void hppa_init_extra_frame_info (int fromleaf, struct frame_info *frame);
int hppa_frameless_function_invocation (struct frame_info *frame);
CORE_ADDR hppa_frame_saved_pc (struct frame_info *frame);
CORE_ADDR hppa_frame_args_address (struct frame_info *fi);
-CORE_ADDR hppa_frame_locals_address (struct frame_info *fi);
int hppa_frame_num_args (struct frame_info *frame);
void hppa_push_dummy_frame (void);
void hppa_pop_frame (void);
/* Should call_function allocate stack space for a struct return? */
int
-hppa_use_struct_convention (int gcc_p, struct type *type)
+hppa32_use_struct_convention (int gcc_p, struct type *type)
{
return (TYPE_LENGTH (type) > 2 * DEPRECATED_REGISTER_SIZE);
}
-\f
+
+/* Same as hppa32_use_struct_convention() for the PA64 ABI. */
+
+int
+hppa64_use_struct_convention (int gcc_p, struct type *type)
+{
+ /* RM: struct upto 128 bits are returned in registers */
+ return TYPE_LENGTH (type) > 16;
+}
/* Routines to extract various sized constants out of hppa
instructions. */
return (int) ((val & 0x1 ? (-1 << (bits - 1)) : 0) | val >> 1);
}
+/* Extract the bits at positions between FROM and TO, using HP's numbering
+ (MSB = 0). */
+
+static int
+get_field (unsigned word, int from, int to)
+{
+ return ((word) >> (31 - (to)) & ((1 << ((to) - (from) + 1)) - 1));
+}
+
/* extract the immediate field from a ld{bhw}s instruction */
static int
word &= MASK_21;
word <<= 11;
- val = GET_FIELD (word, 20, 20);
+ val = get_field (word, 20, 20);
val <<= 11;
- val |= GET_FIELD (word, 9, 19);
+ val |= get_field (word, 9, 19);
val <<= 2;
- val |= GET_FIELD (word, 5, 6);
+ val |= get_field (word, 5, 6);
val <<= 5;
- val |= GET_FIELD (word, 0, 4);
+ val |= get_field (word, 0, 4);
val <<= 2;
- val |= GET_FIELD (word, 7, 8);
+ val |= get_field (word, 7, 8);
return sign_extend (val, 21) << 11;
}
{
unsigned val = 0;
- val |= GET_FIELD (opnd, 11 + 14, 11 + 18);
+ val |= get_field (opnd, 11 + 14, 11 + 18);
val <<= 2;
- val |= GET_FIELD (opnd, 11 + 12, 11 + 13);
+ val |= get_field (opnd, 11 + 12, 11 + 13);
val <<= 2;
- val |= GET_FIELD (opnd, 11 + 19, 11 + 20);
+ val |= get_field (opnd, 11 + 19, 11 + 20);
val <<= 11;
- val |= GET_FIELD (opnd, 11 + 1, 11 + 11);
+ val |= get_field (opnd, 11 + 1, 11 + 11);
val <<= 1;
- val |= GET_FIELD (opnd, 11 + 0, 11 + 0);
+ val |= get_field (opnd, 11 + 0, 11 + 0);
return word | val;
}
static int
extract_17 (unsigned word)
{
- return sign_extend (GET_FIELD (word, 19, 28) |
- GET_FIELD (word, 29, 29) << 10 |
- GET_FIELD (word, 11, 15) << 11 |
+ return sign_extend (get_field (word, 19, 28) |
+ get_field (word, 29, 29) << 10 |
+ get_field (word, 11, 15) << 11 |
(word & 0x1) << 16, 17) << 2;
}
\f
return NULL;
}
+const unsigned char *
+hppa_breakpoint_from_pc (CORE_ADDR *pc, int *len)
+{
+ static const char breakpoint[] = {0x00, 0x01, 0x00, 0x04};
+ (*len) = sizeof (breakpoint);
+ return breakpoint;
+}
+
+/* Return the name of a register. */
+
+const char *
+hppa32_register_name (int i)
+{
+ static char *names[] = {
+ "flags", "r1", "rp", "r3",
+ "r4", "r5", "r6", "r7",
+ "r8", "r9", "r10", "r11",
+ "r12", "r13", "r14", "r15",
+ "r16", "r17", "r18", "r19",
+ "r20", "r21", "r22", "r23",
+ "r24", "r25", "r26", "dp",
+ "ret0", "ret1", "sp", "r31",
+ "sar", "pcoqh", "pcsqh", "pcoqt",
+ "pcsqt", "eiem", "iir", "isr",
+ "ior", "ipsw", "goto", "sr4",
+ "sr0", "sr1", "sr2", "sr3",
+ "sr5", "sr6", "sr7", "cr0",
+ "cr8", "cr9", "ccr", "cr12",
+ "cr13", "cr24", "cr25", "cr26",
+ "mpsfu_high","mpsfu_low","mpsfu_ovflo","pad",
+ "fpsr", "fpe1", "fpe2", "fpe3",
+ "fpe4", "fpe5", "fpe6", "fpe7",
+ "fr4", "fr4R", "fr5", "fr5R",
+ "fr6", "fr6R", "fr7", "fr7R",
+ "fr8", "fr8R", "fr9", "fr9R",
+ "fr10", "fr10R", "fr11", "fr11R",
+ "fr12", "fr12R", "fr13", "fr13R",
+ "fr14", "fr14R", "fr15", "fr15R",
+ "fr16", "fr16R", "fr17", "fr17R",
+ "fr18", "fr18R", "fr19", "fr19R",
+ "fr20", "fr20R", "fr21", "fr21R",
+ "fr22", "fr22R", "fr23", "fr23R",
+ "fr24", "fr24R", "fr25", "fr25R",
+ "fr26", "fr26R", "fr27", "fr27R",
+ "fr28", "fr28R", "fr29", "fr29R",
+ "fr30", "fr30R", "fr31", "fr31R"
+ };
+ if (i < 0 || i >= (sizeof (names) / sizeof (*names)))
+ return NULL;
+ else
+ return names[i];
+}
+
+const char *
+hppa64_register_name (int i)
+{
+ static char *names[] = {
+ "flags", "r1", "rp", "r3",
+ "r4", "r5", "r6", "r7",
+ "r8", "r9", "r10", "r11",
+ "r12", "r13", "r14", "r15",
+ "r16", "r17", "r18", "r19",
+ "r20", "r21", "r22", "r23",
+ "r24", "r25", "r26", "dp",
+ "ret0", "ret1", "sp", "r31",
+ "sar", "pcoqh", "pcsqh", "pcoqt",
+ "pcsqt", "eiem", "iir", "isr",
+ "ior", "ipsw", "goto", "sr4",
+ "sr0", "sr1", "sr2", "sr3",
+ "sr5", "sr6", "sr7", "cr0",
+ "cr8", "cr9", "ccr", "cr12",
+ "cr13", "cr24", "cr25", "cr26",
+ "mpsfu_high","mpsfu_low","mpsfu_ovflo","pad",
+ "fpsr", "fpe1", "fpe2", "fpe3",
+ "fr4", "fr5", "fr6", "fr7",
+ "fr8", "fr9", "fr10", "fr11",
+ "fr12", "fr13", "fr14", "fr15",
+ "fr16", "fr17", "fr18", "fr19",
+ "fr20", "fr21", "fr22", "fr23",
+ "fr24", "fr25", "fr26", "fr27",
+ "fr28", "fr29", "fr30", "fr31"
+ };
+ if (i < 0 || i >= (sizeof (names) / sizeof (*names)))
+ return NULL;
+ else
+ return names[i];
+}
+
+
+
/* Return the adjustment necessary to make for addresses on the stack
as presented by hpread.c.
{
CORE_ADDR *saved_regs;
hppa_frame_init_saved_regs (get_next_frame (frame));
- saved_regs = get_frame_saved_regs (get_next_frame (frame));
+ saved_regs = deprecated_get_frame_saved_regs (get_next_frame (frame));
if (read_memory_integer (saved_regs[FLAGS_REGNUM],
TARGET_PTR_BIT / 8) & 0x2)
{
{
CORE_ADDR *saved_regs;
hppa_frame_init_saved_regs (get_next_frame (frame));
- saved_regs = get_frame_saved_regs (get_next_frame (frame));
+ saved_regs = deprecated_get_frame_saved_regs (get_next_frame (frame));
if (read_memory_integer (saved_regs[FLAGS_REGNUM],
TARGET_PTR_BIT / 8) & 0x2)
{
in optimized code, GCC often doesn't actually save r3.
We'll discover this if we look at the prologue. */
hppa_frame_init_saved_regs (tmp_frame);
- saved_regs = get_frame_saved_regs (tmp_frame);
+ saved_regs = deprecated_get_frame_saved_regs (tmp_frame);
saved_regs_frame = tmp_frame;
/* If we have an address for r3, that's good. */
if (tmp_frame != saved_regs_frame)
{
hppa_frame_init_saved_regs (tmp_frame);
- saved_regs = get_frame_saved_regs (tmp_frame);
+ saved_regs = deprecated_get_frame_saved_regs (tmp_frame);
}
/* Abominable hack. */
if (tmp_frame != saved_regs_frame)
{
hppa_frame_init_saved_regs (tmp_frame);
- saved_regs = get_frame_saved_regs (tmp_frame);
+ saved_regs = deprecated_get_frame_saved_regs (tmp_frame);
}
/* Abominable hack. See above. */
hppa_push_dummy_frame (void)
{
CORE_ADDR sp, pc, pcspace;
- register int regnum;
+ int regnum;
CORE_ADDR int_buffer;
double freg_buffer;
for (regnum = FP0_REGNUM; regnum < NUM_REGS; regnum++)
{
- deprecated_read_register_bytes (REGISTER_BYTE (regnum),
+ deprecated_read_register_bytes (DEPRECATED_REGISTER_BYTE (regnum),
(char *) &freg_buffer, 8);
sp = push_bytes (sp, (char *) &freg_buffer, 8);
}
void
hppa_pop_frame (void)
{
- register struct frame_info *frame = get_current_frame ();
- register CORE_ADDR fp, npc, target_pc;
- register int regnum;
+ struct frame_info *frame = get_current_frame ();
+ CORE_ADDR fp, npc, target_pc;
+ int regnum;
CORE_ADDR *fsr;
double freg_buffer;
fp = get_frame_base (frame);
hppa_frame_init_saved_regs (frame);
- fsr = get_frame_saved_regs (frame);
+ fsr = deprecated_get_frame_saved_regs (frame);
#ifndef NO_PC_SPACE_QUEUE_RESTORE
if (fsr[IPSW_REGNUM]) /* Restoring a call dummy frame */
if (fsr[regnum])
{
read_memory (fsr[regnum], (char *) &freg_buffer, 8);
- deprecated_write_register_bytes (REGISTER_BYTE (regnum),
+ deprecated_write_register_bytes (DEPRECATED_REGISTER_BYTE (regnum),
(char *) &freg_buffer, 8);
}
/* The value of SP as it was passed into this function after
aligning. */
- CORE_ADDR orig_sp = STACK_ALIGN (sp);
+ CORE_ADDR orig_sp = DEPRECATED_STACK_ALIGN (sp);
/* The number of stack bytes occupied by the current argument. */
int bytes_reserved;
The ABIs also mandate minimum stack alignments which we must
preserve. */
- cum_bytes_aligned = STACK_ALIGN (cum_bytes_reserved);
+ cum_bytes_aligned = DEPRECATED_STACK_ALIGN (cum_bytes_reserved);
sp += max (cum_bytes_aligned, REG_PARM_STACK_SPACE);
/* Now write each of the args at the proper offset down the stack. */
The ABI also mandates minimum stack alignments which we must
preserve. */
- cum_bytes_aligned = STACK_ALIGN (cum_bytes_reserved);
+ cum_bytes_aligned = DEPRECATED_STACK_ALIGN (cum_bytes_reserved);
sp += max (cum_bytes_aligned, REG_PARM_STACK_SPACE);
/* Now write each of the args at the proper offset down the stack.
gets the value from the stack rather than from the buffer where all the
registers were saved when the function called completed. */
struct value *
-hppa_value_returned_from_stack (register struct type *valtype, CORE_ADDR addr)
+hppa_value_returned_from_stack (struct type *valtype, CORE_ADDR addr)
{
- register struct value *val;
+ struct value *val;
val = allocate_value (valtype);
CHECK_TYPEDEF (valtype);
args = alloca (sizeof (struct value *) * 8); /* 6 for the arguments and one null one??? */
funcval = find_function_in_inferior ("__d_shl_get");
- get_sym = lookup_symbol ("__d_shl_get", NULL, VAR_NAMESPACE, NULL, NULL);
+ get_sym = lookup_symbol ("__d_shl_get", NULL, VAR_DOMAIN, NULL, NULL);
buff_minsym = lookup_minimal_symbol ("__buffer", NULL, NULL);
msymbol = lookup_minimal_symbol ("__shldp", NULL, NULL);
- symbol2 = lookup_symbol ("__shldp", NULL, VAR_NAMESPACE, NULL, NULL);
+ symbol2 = lookup_symbol ("__shldp", NULL, VAR_DOMAIN, NULL, NULL);
endo_buff_addr = SYMBOL_VALUE_ADDRESS (buff_minsym);
namelen = strlen (DEPRECATED_SYMBOL_NAME (function));
value_return_addr = endo_buff_addr + namelen;
write_register_pid (31, v | 0x3, ptid);
write_register_pid (PC_REGNUM, v, ptid);
- write_register_pid (NPC_REGNUM, v + 4, ptid);
+ write_register_pid (DEPRECATED_NPC_REGNUM, v + 4, ptid);
}
/* return the alignment of a type in bytes. Structures have the maximum
void
pa_do_registers_info (int regnum, int fpregs)
{
- char raw_regs[REGISTER_BYTES];
+ char *raw_regs = alloca (DEPRECATED_REGISTER_BYTES);
int i;
/* Make a copy of gdb's save area (may cause actual
reads from the target). */
for (i = 0; i < NUM_REGS; i++)
- frame_register_read (deprecated_selected_frame, i, raw_regs + REGISTER_BYTE (i));
+ frame_register_read (deprecated_selected_frame, i,
+ raw_regs + DEPRECATED_REGISTER_BYTE (i));
if (regnum == -1)
pa_print_registers (raw_regs, regnum, fpregs);
pa_do_strcat_registers_info (int regnum, int fpregs, struct ui_file *stream,
enum precision_type precision)
{
- char raw_regs[REGISTER_BYTES];
+ char *raw_regs = alloca (DEPRECATED_REGISTER_BYTES);
int i;
/* Make a copy of gdb's save area (may cause actual
reads from the target). */
for (i = 0; i < NUM_REGS; i++)
- frame_register_read (deprecated_selected_frame, i, raw_regs + REGISTER_BYTE (i));
+ frame_register_read (deprecated_selected_frame, i,
+ raw_regs + DEPRECATED_REGISTER_BYTE (i));
if (regnum == -1)
pa_strcat_registers (raw_regs, regnum, fpregs, stream);
int regaddr;
unsigned int offset;
- register int i;
+ int i;
int start;
- char *buf = alloca (max_register_size (current_gdbarch));
+ char buf[MAX_REGISTER_SIZE];
long long reg_val;
if (!know_which)
if (!is_pa_2)
{
- raw_val[1] = *(long *) (raw_regs + REGISTER_BYTE (regnum));
+ raw_val[1] = *(long *) (raw_regs + DEPRECATED_REGISTER_BYTE (regnum));
return;
}
static void
pa_print_fp_reg (int i)
{
- char *raw_buffer = alloca (max_register_size (current_gdbarch));
- char *virtual_buffer = alloca (max_register_size (current_gdbarch));
+ char raw_buffer[MAX_REGISTER_SIZE];
+ char virtual_buffer[MAX_REGISTER_SIZE];
/* Get 32bits of data. */
frame_register_read (deprecated_selected_frame, i, raw_buffer);
static void
pa_strcat_fp_reg (int i, struct ui_file *stream, enum precision_type precision)
{
- char *raw_buffer = alloca (max_register_size (current_gdbarch));
- char *virtual_buffer = alloca (max_register_size (current_gdbarch));
+ char raw_buffer[MAX_REGISTER_SIZE];
+ char virtual_buffer[MAX_REGISTER_SIZE];
fputs_filtered (REGISTER_NAME (i), stream);
print_spaces_filtered (8 - strlen (REGISTER_NAME (i)), stream);
if (precision == double_precision && (i % 2) == 0)
{
- char *raw_buf = alloca (max_register_size (current_gdbarch));
+ char raw_buf[MAX_REGISTER_SIZE];
/* Get the data in raw format for the 2nd half. */
frame_register_read (deprecated_selected_frame, i + 1, raw_buf);
void
hppa_frame_init_saved_regs (struct frame_info *frame)
{
- if (get_frame_saved_regs (frame) == NULL)
+ if (deprecated_get_frame_saved_regs (frame) == NULL)
frame_saved_regs_zalloc (frame);
- hppa_frame_find_saved_regs (frame, get_frame_saved_regs (frame));
+ hppa_frame_find_saved_regs (frame, deprecated_get_frame_saved_regs (frame));
}
/* Exception handling support for the HP-UX ANSI C++ compiler.
/* Next look for the catch enable flag provided in end.o */
sym = lookup_symbol (HP_ACC_EH_catch_catch, (struct block *) NULL,
- VAR_NAMESPACE, 0, (struct symtab **) NULL);
+ VAR_DOMAIN, 0, (struct symtab **) NULL);
if (sym) /* sometimes present in debug info */
{
eh_catch_catch_addr = SYMBOL_VALUE_ADDRESS (sym);
/* Next look for the catch enable flag provided end.o */
sym = lookup_symbol (HP_ACC_EH_catch_catch, (struct block *) NULL,
- VAR_NAMESPACE, 0, (struct symtab **) NULL);
+ VAR_DOMAIN, 0, (struct symtab **) NULL);
if (sym) /* sometimes present in debug info */
{
eh_catch_throw_addr = SYMBOL_VALUE_ADDRESS (sym);
pin (Total_frame_size);
}
-#ifdef PREPARE_TO_PROCEED
-
-/* If the user has switched threads, and there is a breakpoint
- at the old thread's pc location, then switch to that thread
- and return TRUE, else return FALSE and don't do a thread
- switch (or rather, don't seem to have done a thread switch).
-
- Ptrace-based gdb will always return FALSE to the thread-switch
- query, and thus also to PREPARE_TO_PROCEED.
-
- The important thing is whether there is a BPT instruction,
- not how many user breakpoints there are. So we have to worry
- about things like these:
-
- o Non-bp stop -- NO
-
- o User hits bp, no switch -- NO
-
- o User hits bp, switches threads -- YES
-
- o User hits bp, deletes bp, switches threads -- NO
-
- o User hits bp, deletes one of two or more bps
- at that PC, user switches threads -- YES
-
- o Plus, since we're buffering events, the user may have hit a
- breakpoint, deleted the breakpoint and then gotten another
- hit on that same breakpoint on another thread which
- actually hit before the delete. (FIXME in breakpoint.c
- so that "dead" breakpoints are ignored?) -- NO
-
- For these reasons, we have to violate information hiding and
- call "breakpoint_here_p". If core gdb thinks there is a bpt
- here, that's what counts, as core gdb is the one which is
- putting the BPT instruction in and taking it out.
-
- Note that this implementation is potentially redundant now that
- default_prepare_to_proceed() has been added.
-
- FIXME This may not support switching threads after Ctrl-C
- correctly. The default implementation does support this. */
-int
-hppa_prepare_to_proceed (void)
-{
- pid_t old_thread;
- pid_t current_thread;
-
- old_thread = hppa_switched_threads (PIDGET (inferior_ptid));
- if (old_thread != 0)
- {
- /* Switched over from "old_thread". Try to do
- as little work as possible, 'cause mostly
- we're going to switch back. */
- CORE_ADDR new_pc;
- CORE_ADDR old_pc = read_pc ();
-
- /* Yuk, shouldn't use global to specify current
- thread. But that's how gdb does it. */
- current_thread = PIDGET (inferior_ptid);
- inferior_ptid = pid_to_ptid (old_thread);
-
- new_pc = read_pc ();
- if (new_pc != old_pc /* If at same pc, no need */
- && breakpoint_here_p (new_pc))
- {
- /* User hasn't deleted the BP.
- Return TRUE, finishing switch to "old_thread". */
- flush_cached_frames ();
- registers_changed ();
-#if 0
- printf ("---> PREPARE_TO_PROCEED (was %d, now %d)!\n",
- current_thread, PIDGET (inferior_ptid));
-#endif
-
- return 1;
- }
-
- /* Otherwise switch back to the user-chosen thread. */
- inferior_ptid = pid_to_ptid (current_thread);
- new_pc = read_pc (); /* Re-prime register cache */
- }
-
- return 0;
-}
-#endif /* PREPARE_TO_PROCEED */
-
void
hppa_skip_permanent_breakpoint (void)
{
Called only in the context of the "return" command. */
void
-hppa_store_return_value (struct type *type, char *valbuf)
+hppa32_store_return_value (struct type *type, char *valbuf)
{
/* For software floating point, the return value goes into the
integer registers. But we do not have any flag to key this on,
If its a float value, then we also store it into the floating
point registers. */
- deprecated_write_register_bytes (REGISTER_BYTE (28)
+ deprecated_write_register_bytes (DEPRECATED_REGISTER_BYTE (28)
+ (TYPE_LENGTH (type) > 4
? (8 - TYPE_LENGTH (type))
: (4 - TYPE_LENGTH (type))),
valbuf, TYPE_LENGTH (type));
if (TYPE_CODE (type) == TYPE_CODE_FLT)
- deprecated_write_register_bytes (REGISTER_BYTE (FP4_REGNUM),
+ deprecated_write_register_bytes (DEPRECATED_REGISTER_BYTE (FP4_REGNUM),
valbuf, TYPE_LENGTH (type));
}
+/* Same as hppa32_store_return_value(), but for the PA64 ABI. */
+
+void
+hppa64_store_return_value (struct type *type, char *valbuf)
+{
+ if (TYPE_CODE (type) == TYPE_CODE_FLT)
+ deprecated_write_register_bytes
+ (DEPRECATED_REGISTER_BYTE (FP4_REGNUM)
+ + DEPRECATED_REGISTER_SIZE - TYPE_LENGTH (type),
+ valbuf, TYPE_LENGTH (type));
+ else if (is_integral_type(type))
+ deprecated_write_register_bytes
+ (DEPRECATED_REGISTER_BYTE (28)
+ + DEPRECATED_REGISTER_SIZE - TYPE_LENGTH (type),
+ valbuf, TYPE_LENGTH (type));
+ else if (TYPE_LENGTH (type) <= 8)
+ deprecated_write_register_bytes
+ (DEPRECATED_REGISTER_BYTE (28),valbuf, TYPE_LENGTH (type));
+ else if (TYPE_LENGTH (type) <= 16)
+ {
+ deprecated_write_register_bytes (DEPRECATED_REGISTER_BYTE (28),valbuf, 8);
+ deprecated_write_register_bytes
+ (DEPRECATED_REGISTER_BYTE (29), valbuf + 8, TYPE_LENGTH (type) - 8);
+ }
+}
+
/* Copy the function's return value into VALBUF.
This function is called only in the context of "target function calls",
"return" command. */
void
-hppa_extract_return_value (struct type *type, char *regbuf, char *valbuf)
+hppa32_extract_return_value (struct type *type, char *regbuf, char *valbuf)
{
if (TYPE_CODE (type) == TYPE_CODE_FLT)
- memcpy (valbuf,
- (char *)regbuf + REGISTER_BYTE (FP4_REGNUM),
- TYPE_LENGTH (type));
+ memcpy (valbuf, regbuf + DEPRECATED_REGISTER_BYTE (FP4_REGNUM), TYPE_LENGTH (type));
else
memcpy (valbuf,
- ((char *)regbuf
- + REGISTER_BYTE (28)
+ (regbuf
+ + DEPRECATED_REGISTER_BYTE (28)
+ (TYPE_LENGTH (type) > 4
? (8 - TYPE_LENGTH (type))
: (4 - TYPE_LENGTH (type)))),
TYPE_LENGTH (type));
}
+/* Same as hppa32_extract_return_value but for the PA64 ABI case. */
+
+void
+hppa64_extract_return_value (struct type *type, char *regbuf, char *valbuf)
+{
+ /* RM: Floats are returned in FR4R, doubles in FR4.
+ Integral values are in r28, padded on the left.
+ Aggregates less that 65 bits are in r28, right padded.
+ Aggregates upto 128 bits are in r28 and r29, right padded. */
+ if (TYPE_CODE (type) == TYPE_CODE_FLT)
+ memcpy (valbuf,
+ regbuf + DEPRECATED_REGISTER_BYTE (FP4_REGNUM)
+ + DEPRECATED_REGISTER_SIZE - TYPE_LENGTH (type),
+ TYPE_LENGTH (type));
+ else if (is_integral_type(type))
+ memcpy (valbuf,
+ regbuf + DEPRECATED_REGISTER_BYTE (28)
+ + DEPRECATED_REGISTER_SIZE - TYPE_LENGTH (type),
+ TYPE_LENGTH (type));
+ else if (TYPE_LENGTH (type) <= 8)
+ memcpy (valbuf, regbuf + DEPRECATED_REGISTER_BYTE (28),
+ TYPE_LENGTH (type));
+ else if (TYPE_LENGTH (type) <= 16)
+ {
+ memcpy (valbuf, regbuf + DEPRECATED_REGISTER_BYTE (28), 8);
+ memcpy (valbuf + 8, regbuf + DEPRECATED_REGISTER_BYTE (29),
+ TYPE_LENGTH (type) - 8);
+ }
+}
+
int
hppa_reg_struct_has_addr (int gcc_p, struct type *type)
{
}
CORE_ADDR
-hppa_stack_align (CORE_ADDR sp)
+hppa32_stack_align (CORE_ADDR sp)
{
/* elz: adjust the quantity to the next highest value which is
64-bit aligned. This is used in valops.c, when the sp is adjusted.
return ((sp % 8) ? (sp + 7) & -8 : sp);
}
+CORE_ADDR
+hppa64_stack_align (CORE_ADDR sp)
+{
+ /* The PA64 ABI mandates a 16 byte stack alignment. */
+ return ((sp % 16) ? (sp + 15) & -16 : sp);
+}
+
int
hppa_pc_requires_run_before_use (CORE_ADDR pc)
{
int
hppa_register_byte (int reg_nr)
{
- return reg_nr * 4;
+ struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+
+ return reg_nr * tdep->bytes_per_address;
}
/* Return the GDB type object for the "standard" data type of data
in register N. */
struct type *
-hppa_register_virtual_type (int reg_nr)
+hppa32_register_virtual_type (int reg_nr)
{
if (reg_nr < FP4_REGNUM)
return builtin_type_int;
return builtin_type_float;
}
+/* Return the GDB type object for the "standard" data type of data
+ in register N. hppa64 version. */
+
+struct type *
+hppa64_register_virtual_type (int reg_nr)
+{
+ if (reg_nr < FP4_REGNUM)
+ return builtin_type_unsigned_long_long;
+ else
+ return builtin_type_double;
+}
+
/* Store the address of the place in which to copy the structure the
subroutine will return. This is called from call_function. */
the address size is equal to the size of an int* _on the host_...
One possible implementation that crossed my mind is to use
extract_address. */
- return (*(int *)(regbuf + REGISTER_BYTE (28)));
+ return (*(int *)(regbuf + DEPRECATED_REGISTER_BYTE (28)));
}
/* Return True if REGNUM is not a register available to the user
}
-CORE_ADDR
-hppa_frame_args_address (struct frame_info *fi)
-{
- return get_frame_base (fi);
-}
-
-CORE_ADDR
-hppa_frame_locals_address (struct frame_info *fi)
-{
- return get_frame_base (fi);
-}
-
-int
-hppa_frame_num_args (struct frame_info *frame)
-{
- /* We can't tell how many args there are now that the C compiler delays
- popping them. */
- return -1;
-}
-
CORE_ADDR
hppa_smash_text_address (CORE_ADDR addr)
{
return (addr &= ~0x3);
}
+/* Get the ith function argument for the current function. */
+CORE_ADDR
+hppa_fetch_pointer_argument (struct frame_info *frame, int argi,
+ struct type *type)
+{
+ CORE_ADDR addr;
+ frame_read_register (frame, R0_REGNUM + 26 - argi, &addr);
+ return addr;
+}
+
static struct gdbarch *
hppa_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
{
+ struct gdbarch_tdep *tdep;
struct gdbarch *gdbarch;
/* Try to determine the ABI of the object we are loading. */
return (arches->gdbarch);
/* If none found, then allocate and initialize one. */
- gdbarch = gdbarch_alloc (&info, NULL);
+ tdep = XMALLOC (struct gdbarch_tdep);
+ gdbarch = gdbarch_alloc (&info, tdep);
+
+ /* Determine from the bfd_arch_info structure if we are dealing with
+ a 32 or 64 bits architecture. If the bfd_arch_info is not available,
+ then default to a 32bit machine. */
+ if (info.bfd_arch_info != NULL)
+ tdep->bytes_per_address =
+ info.bfd_arch_info->bits_per_address / info.bfd_arch_info->bits_per_byte;
+ else
+ tdep->bytes_per_address = 4;
- /* Hook in ABI-specific overrides, if they have been registered. */
- gdbarch_init_osabi (info, gdbarch);
+ /* Some parts of the gdbarch vector depend on whether we are running
+ on a 32 bits or 64 bits target. */
+ switch (tdep->bytes_per_address)
+ {
+ case 4:
+ set_gdbarch_num_regs (gdbarch, hppa32_num_regs);
+ set_gdbarch_register_name (gdbarch, hppa32_register_name);
+ set_gdbarch_deprecated_register_virtual_type
+ (gdbarch, hppa32_register_virtual_type);
+ set_gdbarch_deprecated_call_dummy_length
+ (gdbarch, hppa32_call_dummy_length);
+ set_gdbarch_deprecated_stack_align (gdbarch, hppa32_stack_align);
+ set_gdbarch_deprecated_reg_struct_has_addr
+ (gdbarch, hppa_reg_struct_has_addr);
+ set_gdbarch_deprecated_extract_return_value
+ (gdbarch, hppa32_extract_return_value);
+ set_gdbarch_use_struct_convention
+ (gdbarch, hppa32_use_struct_convention);
+ set_gdbarch_deprecated_store_return_value
+ (gdbarch, hppa32_store_return_value);
+ break;
+ case 8:
+ set_gdbarch_num_regs (gdbarch, hppa64_num_regs);
+ set_gdbarch_register_name (gdbarch, hppa64_register_name);
+ set_gdbarch_deprecated_register_virtual_type
+ (gdbarch, hppa64_register_virtual_type);
+ set_gdbarch_deprecated_call_dummy_breakpoint_offset
+ (gdbarch, hppa64_call_dummy_breakpoint_offset);
+ set_gdbarch_deprecated_call_dummy_length
+ (gdbarch, hppa64_call_dummy_length);
+ set_gdbarch_deprecated_stack_align (gdbarch, hppa64_stack_align);
+ set_gdbarch_deprecated_extract_return_value
+ (gdbarch, hppa64_extract_return_value);
+ set_gdbarch_use_struct_convention
+ (gdbarch, hppa64_use_struct_convention);
+ set_gdbarch_deprecated_store_return_value
+ (gdbarch, hppa64_store_return_value);
+ break;
+ default:
+ internal_error (__FILE__, __LINE__, "Unsupported address size: %d",
+ tdep->bytes_per_address);
+ }
- set_gdbarch_reg_struct_has_addr (gdbarch, hppa_reg_struct_has_addr);
+ /* The following gdbarch vector elements depend on other parts of this
+ vector which have been set above, depending on the ABI. */
+ set_gdbarch_deprecated_register_bytes
+ (gdbarch, gdbarch_num_regs (gdbarch) * tdep->bytes_per_address);
+ set_gdbarch_long_bit (gdbarch, tdep->bytes_per_address * TARGET_CHAR_BIT);
+ set_gdbarch_long_long_bit (gdbarch, 64);
+ set_gdbarch_ptr_bit (gdbarch, tdep->bytes_per_address * TARGET_CHAR_BIT);
+
+ /* The following gdbarch vector elements do not depend on the address
+ size, or in any other gdbarch element previously set. */
set_gdbarch_function_start_offset (gdbarch, 0);
set_gdbarch_skip_prologue (gdbarch, hppa_skip_prologue);
set_gdbarch_skip_trampoline_code (gdbarch, hppa_skip_trampoline_code);
hppa_in_solib_return_trampoline);
set_gdbarch_deprecated_saved_pc_after_call (gdbarch, hppa_saved_pc_after_call);
set_gdbarch_inner_than (gdbarch, hppa_inner_than);
- set_gdbarch_stack_align (gdbarch, hppa_stack_align);
set_gdbarch_decr_pc_after_break (gdbarch, 0);
- set_gdbarch_deprecated_register_size (gdbarch, 4);
- set_gdbarch_num_regs (gdbarch, hppa_num_regs);
+ set_gdbarch_deprecated_register_size (gdbarch, tdep->bytes_per_address);
set_gdbarch_deprecated_fp_regnum (gdbarch, 3);
set_gdbarch_sp_regnum (gdbarch, 30);
set_gdbarch_fp0_regnum (gdbarch, 64);
set_gdbarch_pc_regnum (gdbarch, PCOQ_HEAD_REGNUM);
- set_gdbarch_npc_regnum (gdbarch, PCOQ_TAIL_REGNUM);
- set_gdbarch_register_raw_size (gdbarch, hppa_register_raw_size);
- set_gdbarch_register_bytes (gdbarch, hppa_num_regs * 4);
- set_gdbarch_register_byte (gdbarch, hppa_register_byte);
- set_gdbarch_register_virtual_size (gdbarch, hppa_register_raw_size);
- set_gdbarch_deprecated_max_register_raw_size (gdbarch, 4);
+ set_gdbarch_deprecated_npc_regnum (gdbarch, PCOQ_TAIL_REGNUM);
+ set_gdbarch_deprecated_register_raw_size (gdbarch, hppa_register_raw_size);
+ set_gdbarch_deprecated_register_byte (gdbarch, hppa_register_byte);
+ set_gdbarch_deprecated_register_virtual_size (gdbarch, hppa_register_raw_size);
+ set_gdbarch_deprecated_max_register_raw_size (gdbarch, tdep->bytes_per_address);
set_gdbarch_deprecated_max_register_virtual_size (gdbarch, 8);
- set_gdbarch_register_virtual_type (gdbarch, hppa_register_virtual_type);
set_gdbarch_deprecated_store_struct_return (gdbarch, hppa_store_struct_return);
- set_gdbarch_deprecated_extract_return_value (gdbarch,
- hppa_extract_return_value);
- set_gdbarch_use_struct_convention (gdbarch, hppa_use_struct_convention);
- set_gdbarch_deprecated_store_return_value (gdbarch, hppa_store_return_value);
set_gdbarch_deprecated_extract_struct_value_address
(gdbarch, hppa_extract_struct_value_address);
set_gdbarch_cannot_store_register (gdbarch, hppa_cannot_store_register);
set_gdbarch_frameless_function_invocation
(gdbarch, hppa_frameless_function_invocation);
set_gdbarch_deprecated_frame_saved_pc (gdbarch, hppa_frame_saved_pc);
- set_gdbarch_frame_args_address (gdbarch, hppa_frame_args_address);
- set_gdbarch_frame_locals_address (gdbarch, hppa_frame_locals_address);
- set_gdbarch_frame_num_args (gdbarch, hppa_frame_num_args);
set_gdbarch_frame_args_skip (gdbarch, 0);
set_gdbarch_deprecated_push_dummy_frame (gdbarch, hppa_push_dummy_frame);
set_gdbarch_deprecated_pop_frame (gdbarch, hppa_pop_frame);
- set_gdbarch_deprecated_call_dummy_length (gdbarch, INSTRUCTION_SIZE * 28);
/* set_gdbarch_deprecated_fix_call_dummy (gdbarch, hppa_fix_call_dummy); */
set_gdbarch_deprecated_push_arguments (gdbarch, hppa_push_arguments);
+ set_gdbarch_addr_bits_remove (gdbarch, hppa_smash_text_address);
set_gdbarch_smash_text_address (gdbarch, hppa_smash_text_address);
set_gdbarch_believe_pcc_promotion (gdbarch, 1);
set_gdbarch_read_pc (gdbarch, hppa_target_read_pc);
set_gdbarch_write_pc (gdbarch, hppa_target_write_pc);
set_gdbarch_deprecated_target_read_fp (gdbarch, hppa_target_read_fp);
+ /* Helper for function argument information. */
+ set_gdbarch_fetch_pointer_argument (gdbarch, hppa_fetch_pointer_argument);
+
+ set_gdbarch_print_insn (gdbarch, print_insn_hppa);
+
+ /* When a hardware watchpoint triggers, we'll move the inferior past
+ it by removing all eventpoints; stepping past the instruction
+ that caused the trigger; reinserting eventpoints; and checking
+ whether any watched location changed. */
+ set_gdbarch_have_nonsteppable_watchpoint (gdbarch, 1);
+
+ /* Hook in ABI-specific overrides, if they have been registered. */
+ gdbarch_init_osabi (info, gdbarch);
+
return gdbarch;
}
void break_at_finish_at_depth_command (char *arg, int from_tty);
gdbarch_register (bfd_arch_hppa, hppa_gdbarch_init, hppa_dump_tdep);
- deprecated_tm_print_insn = print_insn_hppa;
add_cmd ("unwind", class_maintenance, unwind_command,
"Print unwind table entry at given address.",