/* Target-dependent code for GDB, the GNU debugger.
- Copyright 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006
+ Free Software Foundation, Inc.
Contributed by D.J. Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
for IBM Deutschland Entwicklung GmbH, IBM Corporation.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
#include "defs.h"
#include "arch-utils.h"
#include "gdbcore.h"
#include "gdbcmd.h"
#include "objfiles.h"
-#include "tm.h"
-#include "../bfd/bfd.h"
#include "floatformat.h"
#include "regcache.h"
#include "trad-frame.h"
#include "value.h"
#include "gdb_assert.h"
#include "dis-asm.h"
-#include "solib-svr4.h" /* For struct link_map_offsets. */
+#include "solib-svr4.h"
#include "s390-tdep.h"
{
int regnum = -1;
- if (reg >= 0 || reg < ARRAY_SIZE (s390_dwarf_regmap))
+ if (reg >= 0 && reg < ARRAY_SIZE (s390_dwarf_regmap))
regnum = s390_dwarf_regmap[reg];
if (regnum == -1)
- warning ("Unmapped DWARF Register #%d encountered\n", reg);
+ warning (_("Unmapped DWARF Register #%d encountered."), reg);
return regnum;
}
static void
s390_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
- int regnum, void *buf)
+ int regnum, gdb_byte *buf)
{
ULONGEST val;
break;
default:
- internal_error (__FILE__, __LINE__, "invalid regnum");
+ internal_error (__FILE__, __LINE__, _("invalid regnum"));
}
}
static void
s390_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
- int regnum, const void *buf)
+ int regnum, const gdb_byte *buf)
{
ULONGEST val, psw;
break;
default:
- internal_error (__FILE__, __LINE__, "invalid regnum");
+ internal_error (__FILE__, __LINE__, _("invalid regnum"));
}
}
static void
s390x_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
- int regnum, void *buf)
+ int regnum, gdb_byte *buf)
{
ULONGEST val;
break;
default:
- internal_error (__FILE__, __LINE__, "invalid regnum");
+ internal_error (__FILE__, __LINE__, _("invalid regnum"));
}
}
static void
s390x_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
- int regnum, const void *buf)
+ int regnum, const gdb_byte *buf)
{
ULONGEST val, psw;
break;
default:
- internal_error (__FILE__, __LINE__, "invalid regnum");
+ internal_error (__FILE__, __LINE__, _("invalid regnum"));
}
}
static void
s390_register_to_value (struct frame_info *frame, int regnum,
- struct type *valtype, void *out)
+ struct type *valtype, gdb_byte *out)
{
- char in[8];
+ gdb_byte in[8];
int len = TYPE_LENGTH (valtype);
gdb_assert (len < 8);
static void
s390_value_to_register (struct frame_info *frame, int regnum,
- struct type *valtype, const void *in)
+ struct type *valtype, const gdb_byte *in)
{
- char out[8];
+ gdb_byte out[8];
int len = TYPE_LENGTH (valtype);
gdb_assert (len < 8);
}
-/* A prologue-value-esque boolean type, including "maybe", when we
- can't figure out whether something is true or not. */
-enum pv_boolean {
- pv_maybe,
- pv_definite_yes,
- pv_definite_no,
-};
-
-
-/* Decide whether a reference to SIZE bytes at ADDR refers exactly to
- an element of an array. The array starts at ARRAY_ADDR, and has
- ARRAY_LEN values of ELT_SIZE bytes each. If ADDR definitely does
- refer to an array element, set *I to the index of the referenced
- element in the array, and return pv_definite_yes. If it definitely
- doesn't, return pv_definite_no. If we can't tell, return pv_maybe.
-
- If the reference does touch the array, but doesn't fall exactly on
- an element boundary, or doesn't refer to the whole element, return
- pv_maybe. */
-static enum pv_boolean
-pv_is_array_ref (struct prologue_value *addr,
- CORE_ADDR size,
- struct prologue_value *array_addr,
- CORE_ADDR array_len,
- CORE_ADDR elt_size,
- int *i)
-{
- struct prologue_value offset;
-
- /* Note that, since ->k is a CORE_ADDR, and CORE_ADDR is unsigned,
- if addr is *before* the start of the array, then this isn't going
- to be negative... */
- pv_subtract (&offset, addr, array_addr);
-
- if (offset.kind == pv_constant)
- {
- /* This is a rather odd test. We want to know if the SIZE bytes
- at ADDR don't overlap the array at all, so you'd expect it to
- be an || expression: "if we're completely before || we're
- completely after". But with unsigned arithmetic, things are
- different: since it's a number circle, not a number line, the
- right values for offset.k are actually one contiguous range. */
- if (offset.k <= -size
- && offset.k >= array_len * elt_size)
- return pv_definite_no;
- else if (offset.k % elt_size != 0
- || size != elt_size)
- return pv_maybe;
- else
- {
- *i = offset.k / elt_size;
- return pv_definite_yes;
- }
- }
- else
- return pv_maybe;
-}
-
-
-
/* Decoding S/390 instructions. */
/* Named opcode values for the S/390 instructions we recognize. Some
{
op1_lhi = 0xa7, op2_lhi = 0x08,
op1_lghi = 0xa7, op2_lghi = 0x09,
+ op1_lgfi = 0xc0, op2_lgfi = 0x01,
op_lr = 0x18,
op_lgr = 0xb904,
op_l = 0x58,
op1_stmg = 0xeb, op2_stmg = 0x24,
op1_aghi = 0xa7, op2_aghi = 0x0b,
op1_ahi = 0xa7, op2_ahi = 0x0a,
+ op1_agfi = 0xc2, op2_agfi = 0x08,
+ op1_afi = 0xc2, op2_afi = 0x09,
+ op1_algfi= 0xc2, op2_algfi= 0x0a,
+ op1_alfi = 0xc2, op2_alfi = 0x0b,
op_ar = 0x1a,
op_agr = 0xb908,
op_a = 0x5a,
op1_ay = 0xe3, op2_ay = 0x5a,
op1_ag = 0xe3, op2_ag = 0x08,
+ op1_slgfi= 0xc2, op2_slgfi= 0x04,
+ op1_slfi = 0xc2, op2_slfi = 0x05,
op_sr = 0x1b,
op_sgr = 0xb909,
op_s = 0x5b,
static int s390_instrlen[] = { 2, 4, 4, 6 };
int instrlen;
- if (read_memory_nobpt (at, &instr[0], 2))
+ if (deprecated_read_memory_nobpt (at, &instr[0], 2))
return -1;
instrlen = s390_instrlen[instr[0] >> 6];
if (instrlen > 2)
{
- if (read_memory_nobpt (at + 2, &instr[2], instrlen - 2))
+ if (deprecated_read_memory_nobpt (at + 2, &instr[2], instrlen - 2))
return -1;
}
return instrlen;
}
-/* The number of GPR and FPR spill slots in an S/390 stack frame. We
- track general-purpose registers r2 -- r15, and floating-point
- registers f0, f2, f4, and f6. */
-#define S390_NUM_SPILL_SLOTS (14 + 4)
#define S390_NUM_GPRS 16
#define S390_NUM_FPRS 16
/* The floating-point registers. */
struct prologue_value fpr[S390_NUM_FPRS];
- /* The register spill stack slots in the caller's frame ---
- general-purpose registers r2 through r15, and floating-point
- registers. spill[i] is where gpr i+2 gets spilled;
- spill[(14, 15, 16, 17)] is where (f0, f2, f4, f6) get spilled. */
- struct prologue_value spill[S390_NUM_SPILL_SLOTS];
-
- /* The value of the back chain slot. This is only valid if the stack
- pointer is known to be less than its original value --- that is,
- if we have indeed allocated space on the stack. */
- struct prologue_value back_chain;
-};
+ /* The offset relative to the CFA where the incoming GPR N was saved
+ by the function prologue. 0 if not saved or unknown. */
+ int gpr_slot[S390_NUM_GPRS];
+ /* Likewise for FPRs. */
+ int fpr_slot[S390_NUM_FPRS];
-/* If the SIZE bytes at ADDR are a stack slot we're actually tracking,
- return pv_definite_yes and set *STACK to point to the slot. If
- we're sure that they are not any of our stack slots, then return
- pv_definite_no. Otherwise, return pv_maybe.
-
- DATA describes our current state (registers and stack slots). */
-static enum pv_boolean
-s390_on_stack (struct prologue_value *addr,
- CORE_ADDR size,
- struct s390_prologue_data *data,
- struct prologue_value **stack)
-{
- struct prologue_value gpr_spill_addr;
- struct prologue_value fpr_spill_addr;
- struct prologue_value back_chain_addr;
- int i;
- enum pv_boolean b;
-
- /* Construct the addresses of the spill arrays and the back chain. */
- pv_set_to_register (&gpr_spill_addr, S390_SP_REGNUM, 2 * data->gpr_size);
- pv_set_to_register (&fpr_spill_addr, S390_SP_REGNUM, 16 * data->gpr_size);
- back_chain_addr = data->gpr[S390_SP_REGNUM - S390_R0_REGNUM];
-
- /* We have to check for GPR and FPR references using two separate
- calls to pv_is_array_ref, since the GPR and FPR spill slots are
- different sizes. (SPILL is an array, but the thing it tracks
- isn't really an array.) */
-
- /* Was it a reference to the GPR spill array? */
- b = pv_is_array_ref (addr, size, &gpr_spill_addr, 14, data->gpr_size, &i);
- if (b == pv_definite_yes)
- {
- *stack = &data->spill[i];
- return pv_definite_yes;
- }
- if (b == pv_maybe)
- return pv_maybe;
-
- /* Was it a reference to the FPR spill array? */
- b = pv_is_array_ref (addr, size, &fpr_spill_addr, 4, data->fpr_size, &i);
- if (b == pv_definite_yes)
- {
- *stack = &data->spill[14 + i];
- return pv_definite_yes;
- }
- if (b == pv_maybe)
- return pv_maybe;
-
- /* Was it a reference to the back chain?
- This isn't quite right. We ought to check whether we have
- actually allocated any new frame at all. */
- b = pv_is_array_ref (addr, size, &back_chain_addr, 1, data->gpr_size, &i);
- if (b == pv_definite_yes)
- {
- *stack = &data->back_chain;
- return pv_definite_yes;
- }
- if (b == pv_maybe)
- return pv_maybe;
-
- /* All the above queries returned definite 'no's. */
- return pv_definite_no;
-}
-
+ /* Nonzero if the backchain was saved. This is assumed to be the
+ case when the incoming SP is saved at the current SP location. */
+ int back_chain_saved_p;
+};
/* Do a SIZE-byte store of VALUE to ADDR. */
static void
struct prologue_value *value,
struct s390_prologue_data *data)
{
- struct prologue_value *stack;
+ struct prologue_value cfa, offset;
+ int i;
+
+ /* Check whether we are storing the backchain. */
+ pv_subtract (&offset, &data->gpr[S390_SP_REGNUM - S390_R0_REGNUM], addr);
+
+ if (offset.kind == pv_constant && offset.k == 0)
+ if (size == data->gpr_size
+ && pv_is_register (value, S390_SP_REGNUM, 0))
+ {
+ data->back_chain_saved_p = 1;
+ return;
+ }
+
- /* We can do it if it's definitely a reference to something on the stack. */
- if (s390_on_stack (addr, size, data, &stack) == pv_definite_yes)
+ /* Check whether we are storing a register into the stack. */
+ pv_set_to_register (&cfa, S390_SP_REGNUM, 16 * data->gpr_size + 32);
+ pv_subtract (&offset, &cfa, addr);
+
+ if (offset.kind == pv_constant
+ && offset.k < INT_MAX && offset.k > 0
+ && offset.k % data->gpr_size == 0)
{
- *stack = *value;
- return;
+ /* If we are storing the original value of a register, we want to
+ record the CFA offset. If the same register is stored multiple
+ times, the stack slot with the highest address counts. */
+
+ for (i = 0; i < S390_NUM_GPRS; i++)
+ if (size == data->gpr_size
+ && pv_is_register (value, S390_R0_REGNUM + i, 0))
+ if (data->gpr_slot[i] == 0
+ || data->gpr_slot[i] > offset.k)
+ {
+ data->gpr_slot[i] = offset.k;
+ return;
+ }
+
+ for (i = 0; i < S390_NUM_FPRS; i++)
+ if (size == data->fpr_size
+ && pv_is_register (value, S390_F0_REGNUM + i, 0))
+ if (data->fpr_slot[i] == 0
+ || data->fpr_slot[i] > offset.k)
+ {
+ data->fpr_slot[i] = offset.k;
+ return;
+ }
}
- /* Note: If s390_on_stack returns pv_maybe, you might think we should
- forget our cached values, as any of those might have been hit.
- However, we make the assumption that --since the fields we track
- are save areas private to compiler, and never directly exposed to
- the user-- every access to our data is explicit. Hence, every
- memory access we cannot follow can't hit our data. */
+ /* Note: If this is some store we cannot identify, you might think we
+ should forget our cached values, as any of those might have been hit.
+
+ However, we make the assumption that the register save areas are only
+ ever stored to once in any given function, and we do recognize these
+ stores. Thus every store we cannot recognize does not hit our data. */
}
/* Do a SIZE-byte load from ADDR into VALUE. */
struct prologue_value *value,
struct s390_prologue_data *data)
{
- struct prologue_value *stack;
+ struct prologue_value cfa, offset;
+ int i;
/* If it's a load from an in-line constant pool, then we can
simulate that, under the assumption that the code isn't
}
}
- /* If it's definitely a reference to something on the stack,
- we can do that. */
- if (s390_on_stack (addr, size, data, &stack) == pv_definite_yes)
+ /* Check whether we are accessing one of our save slots. */
+ pv_set_to_register (&cfa, S390_SP_REGNUM, 16 * data->gpr_size + 32);
+ pv_subtract (&offset, &cfa, addr);
+
+ if (offset.kind == pv_constant
+ && offset.k < INT_MAX && offset.k > 0)
{
- *value = *stack;
- return;
+ for (i = 0; i < S390_NUM_GPRS; i++)
+ if (offset.k == data->gpr_slot[i])
+ {
+ pv_set_to_register (value, S390_R0_REGNUM + i, 0);
+ return;
+ }
+
+ for (i = 0; i < S390_NUM_FPRS; i++)
+ if (offset.k == data->fpr_slot[i])
+ {
+ pv_set_to_register (value, S390_F0_REGNUM + i, 0);
+ return;
+ }
}
/* Otherwise, we don't know the value. */
for (i = 0; i < S390_NUM_FPRS; i++)
pv_set_to_register (&data->fpr[i], S390_F0_REGNUM + i, 0);
- for (i = 0; i < S390_NUM_SPILL_SLOTS; i++)
- pv_set_to_unknown (&data->spill[i]);
+ for (i = 0; i < S390_NUM_GPRS; i++)
+ data->gpr_slot[i] = 0;
- pv_set_to_unknown (&data->back_chain);
+ for (i = 0; i < S390_NUM_FPRS; i++)
+ data->fpr_slot[i] = 0;
+
+ data->back_chain_saved_p = 0;
}
/* Start interpreting instructions, until we hit the frame's
unsigned int b2, r1, r2, x2, r3;
int i2, d2;
- /* The values of SP, FP, and back chain before this instruction,
+ /* The values of SP and FP before this instruction,
for detecting instructions that change them. */
- struct prologue_value pre_insn_sp, pre_insn_fp, pre_insn_back_chain;
+ struct prologue_value pre_insn_sp, pre_insn_fp;
+ /* Likewise for the flag whether the back chain was saved. */
+ int pre_insn_back_chain_saved_p;
/* If we got an error trying to read the instruction, report it. */
if (insn_len < 0)
pre_insn_sp = data->gpr[S390_SP_REGNUM - S390_R0_REGNUM];
pre_insn_fp = data->gpr[S390_FRAME_REGNUM - S390_R0_REGNUM];
- pre_insn_back_chain = data->back_chain;
+ pre_insn_back_chain_saved_p = data->back_chain_saved_p;
/* LHI r1, i2 --- load halfword immediate */
if (word_size == 4
&& is_ri (insn, op1_lghi, op2_lghi, &r1, &i2))
pv_set_to_constant (&data->gpr[r1], i2);
+ /* LGFI r1, i2 --- load fullword immediate */
+ else if (is_ril (insn, op1_lgfi, op2_lgfi, &r1, &i2))
+ pv_set_to_constant (&data->gpr[r1], i2);
+
/* LR r1, r2 --- load from register */
else if (word_size == 4
&& is_rr (insn, op_lr, &r1, &r2))
&& is_ri (insn, op1_aghi, op2_aghi, &r1, &i2))
pv_add_constant (&data->gpr[r1], i2);
+ /* AFI r1, i2 --- add fullword immediate */
+ else if (word_size == 4
+ && is_ril (insn, op1_afi, op2_afi, &r1, &i2))
+ pv_add_constant (&data->gpr[r1], i2);
+
+ /* AGFI r1, i2 --- add fullword immediate (64-bit version) */
+ else if (word_size == 8
+ && is_ril (insn, op1_agfi, op2_agfi, &r1, &i2))
+ pv_add_constant (&data->gpr[r1], i2);
+
+ /* ALFI r1, i2 --- add logical immediate */
+ else if (word_size == 4
+ && is_ril (insn, op1_alfi, op2_alfi, &r1, &i2))
+ pv_add_constant (&data->gpr[r1], (CORE_ADDR)i2 & 0xffffffff);
+
+ /* ALGFI r1, i2 --- add logical immediate (64-bit version) */
+ else if (word_size == 8
+ && is_ril (insn, op1_algfi, op2_algfi, &r1, &i2))
+ pv_add_constant (&data->gpr[r1], (CORE_ADDR)i2 & 0xffffffff);
+
/* AR r1, r2 -- add register */
else if (word_size == 4
&& is_rr (insn, op_ar, &r1, &r2))
pv_add (&data->gpr[r1], &data->gpr[r1], &value);
}
+ /* SLFI r1, i2 --- subtract logical immediate */
+ else if (word_size == 4
+ && is_ril (insn, op1_slfi, op2_slfi, &r1, &i2))
+ pv_add_constant (&data->gpr[r1], -((CORE_ADDR)i2 & 0xffffffff));
+
+ /* SLGFI r1, i2 --- subtract logical immediate (64-bit version) */
+ else if (word_size == 8
+ && is_ril (insn, op1_slgfi, op2_slgfi, &r1, &i2))
+ pv_add_constant (&data->gpr[r1], -((CORE_ADDR)i2 & 0xffffffff));
+
/* SR r1, r2 -- subtract register */
else if (word_size == 4
&& is_rr (insn, op_sr, &r1, &r2))
&& ! pv_is_register (sp, S390_SP_REGNUM, 0))
|| (! pv_is_identical (&pre_insn_fp, fp)
&& ! pv_is_register (fp, S390_FRAME_REGNUM, 0))
- || ! pv_is_identical (&pre_insn_back_chain, &data->back_chain))
+ || pre_insn_back_chain_saved_p != data->back_chain_saved_p)
result = next_pc;
}
}
int d2;
if (word_size == 4
- && !read_memory_nobpt (pc - 4, insn, 4)
+ && !deprecated_read_memory_nobpt (pc - 4, insn, 4)
&& is_rs (insn, op_lm, &r1, &r3, &d2, &b2)
&& r3 == S390_SP_REGNUM - S390_R0_REGNUM)
return 1;
if (word_size == 4
- && !read_memory_nobpt (pc - 6, insn, 6)
+ && !deprecated_read_memory_nobpt (pc - 6, insn, 6)
&& is_rsy (insn, op1_lmy, op2_lmy, &r1, &r3, &d2, &b2)
&& r3 == S390_SP_REGNUM - S390_R0_REGNUM)
return 1;
if (word_size == 8
- && !read_memory_nobpt (pc - 6, insn, 6)
+ && !deprecated_read_memory_nobpt (pc - 6, insn, 6)
&& is_rsy (insn, op1_lmg, op2_lmg, &r1, &r3, &d2, &b2)
&& r3 == S390_SP_REGNUM - S390_R0_REGNUM)
return 1;
struct s390_unwind_cache *info)
{
struct gdbarch *gdbarch = get_frame_arch (next_frame);
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
int word_size = gdbarch_ptr_bit (gdbarch) / 8;
struct s390_prologue_data data;
struct prologue_value *fp = &data.gpr[S390_FRAME_REGNUM - S390_R0_REGNUM];
struct prologue_value *sp = &data.gpr[S390_SP_REGNUM - S390_R0_REGNUM];
- int slot_num;
- CORE_ADDR slot_addr;
+ int i;
+ CORE_ADDR cfa;
CORE_ADDR func;
CORE_ADDR result;
ULONGEST reg;
/* If the next frame is a NORMAL_FRAME, this frame *cannot* have frame
size zero. This is only possible if the next frame is a sentinel
frame, a dummy frame, or a signal trampoline frame. */
- if (get_frame_type (next_frame) == NORMAL_FRAME
- /* For some reason, sentinel frames are NORMAL_FRAMEs
- -- but they have negative frame level. */
- && frame_relative_level (next_frame) >= 0)
+ /* FIXME: cagney/2004-05-01: This sanity check shouldn't be
+ needed, instead the code should simpliy rely on its
+ analysis. */
+ if (get_frame_type (next_frame) == NORMAL_FRAME)
return 0;
/* If we really have a frameless function, %r14 must be valid
treat it as frameless if we're currently within the function epilog
code at a point where the frame pointer has already been restored.
This can only happen in an innermost frame. */
- if (size > 0
- && (get_frame_type (next_frame) != NORMAL_FRAME
- || frame_relative_level (next_frame) < 0))
+ /* FIXME: cagney/2004-05-01: This sanity check shouldn't be needed,
+ instead the code should simpliy rely on its analysis. */
+ if (size > 0 && get_frame_type (next_frame) != NORMAL_FRAME)
{
/* See the comment in s390_in_function_epilogue_p on why this is
not completely reliable ... */
add back the frame size to arrive that the previous frame's
stack pointer value. */
prev_sp = frame_unwind_register_unsigned (next_frame, frame_pointer) + size;
+ cfa = prev_sp + 16*word_size + 32;
- /* Scan the spill array; if a spill slot says it holds the
- original value of some register, then record that slot's
- address as the place that register was saved. */
-
- /* Slots for %r2 .. %r15. */
- for (slot_num = 0, slot_addr = prev_sp + 2 * data.gpr_size;
- slot_num < 14;
- slot_num++, slot_addr += data.gpr_size)
- {
- struct prologue_value *slot = &data.spill[slot_num];
+ /* Record the addresses of all register spill slots the prologue parser
+ has recognized. Consider only registers defined as call-saved by the
+ ABI; for call-clobbered registers the parser may have recognized
+ spurious stores. */
- if (slot->kind == pv_register
- && slot->k == 0)
- info->saved_regs[slot->reg].addr = slot_addr;
- }
+ for (i = 6; i <= 15; i++)
+ if (data.gpr_slot[i] != 0)
+ info->saved_regs[S390_R0_REGNUM + i].addr = cfa - data.gpr_slot[i];
- /* Slots for %f0 .. %f6. */
- for (slot_num = 14, slot_addr = prev_sp + 16 * data.gpr_size;
- slot_num < S390_NUM_SPILL_SLOTS;
- slot_num++, slot_addr += data.fpr_size)
+ switch (tdep->abi)
{
- struct prologue_value *slot = &data.spill[slot_num];
+ case ABI_LINUX_S390:
+ if (data.fpr_slot[4] != 0)
+ info->saved_regs[S390_F4_REGNUM].addr = cfa - data.fpr_slot[4];
+ if (data.fpr_slot[6] != 0)
+ info->saved_regs[S390_F6_REGNUM].addr = cfa - data.fpr_slot[6];
+ break;
- if (slot->kind == pv_register
- && slot->k == 0)
- info->saved_regs[slot->reg].addr = slot_addr;
+ case ABI_LINUX_ZSERIES:
+ for (i = 8; i <= 15; i++)
+ if (data.fpr_slot[i] != 0)
+ info->saved_regs[S390_F0_REGNUM + i].addr = cfa - data.fpr_slot[i];
+ break;
}
/* Function return will set PC to %r14. */
void **this_prologue_cache,
int regnum, int *optimizedp,
enum lval_type *lvalp, CORE_ADDR *addrp,
- int *realnump, void *bufferp)
+ int *realnump, gdb_byte *bufferp)
{
struct s390_unwind_cache *info
= s390_frame_unwind_cache (next_frame, this_prologue_cache);
- trad_frame_prev_register (next_frame, info->saved_regs, regnum,
- optimizedp, lvalp, addrp, realnump, bufferp);
+ trad_frame_get_prev_register (next_frame, info->saved_regs, regnum,
+ optimizedp, lvalp, addrp, realnump, bufferp);
}
static const struct frame_unwind s390_frame_unwind = {
void **this_prologue_cache,
int regnum, int *optimizedp,
enum lval_type *lvalp, CORE_ADDR *addrp,
- int *realnump, void *bufferp)
+ int *realnump, gdb_byte *bufferp)
{
struct s390_stub_unwind_cache *info
= s390_stub_frame_unwind_cache (next_frame, this_prologue_cache);
- trad_frame_prev_register (next_frame, info->saved_regs, regnum,
- optimizedp, lvalp, addrp, realnump, bufferp);
+ trad_frame_get_prev_register (next_frame, info->saved_regs, regnum,
+ optimizedp, lvalp, addrp, realnump, bufferp);
}
static const struct frame_unwind s390_stub_frame_unwind = {
ucontext (contains sigregs at offset 5 words) */
if (next_ra == next_cfa)
{
- sigreg_ptr = next_cfa + 8 + 128 + 5*word_size;
+ sigreg_ptr = next_cfa + 8 + 128 + align_up (5*word_size, 8);
}
/* Old-style RT frame and all non-RT frames:
void **this_prologue_cache,
int regnum, int *optimizedp,
enum lval_type *lvalp, CORE_ADDR *addrp,
- int *realnump, void *bufferp)
+ int *realnump, gdb_byte *bufferp)
{
struct s390_sigtramp_unwind_cache *info
= s390_sigtramp_frame_unwind_cache (next_frame, this_prologue_cache);
- trad_frame_prev_register (next_frame, info->saved_regs, regnum,
- optimizedp, lvalp, addrp, realnump, bufferp);
+ trad_frame_get_prev_register (next_frame, info->saved_regs, regnum,
+ optimizedp, lvalp, addrp, realnump, bufferp);
}
static const struct frame_unwind s390_sigtramp_frame_unwind = {
CORE_ADDR pc = frame_pc_unwind (next_frame);
bfd_byte sigreturn[2];
- if (read_memory_nobpt (pc, sigreturn, 2))
+ if (deprecated_read_memory_nobpt (pc, sigreturn, 2))
return NULL;
if (sigreturn[0] != 0x0a /* svc */)
static void
s390_dwarf2_frame_init_reg (struct gdbarch *gdbarch, int regnum,
- struct dwarf2_frame_state_reg *reg)
+ struct dwarf2_frame_state_reg *reg,
+ struct frame_info *next_frame)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
static LONGEST
extend_simple_arg (struct value *arg)
{
- struct type *type = VALUE_TYPE (arg);
+ struct type *type = value_type (arg);
/* Even structs get passed in the least significant bits of the
register / memory word. It's not really right to extract them as
an integer, but it does take care of the extension. */
if (TYPE_UNSIGNED (type))
- return extract_unsigned_integer (VALUE_CONTENTS (arg),
+ return extract_unsigned_integer (value_contents (arg),
TYPE_LENGTH (type));
else
- return extract_signed_integer (VALUE_CONTENTS (arg),
+ return extract_signed_integer (value_contents (arg),
TYPE_LENGTH (type));
}
Our caller has taken care of any type promotions needed to satisfy
prototypes or the old K&R argument-passing rules. */
static CORE_ADDR
-s390_push_dummy_call (struct gdbarch *gdbarch, CORE_ADDR func_addr,
+s390_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
struct regcache *regcache, CORE_ADDR bp_addr,
int nargs, struct value **args, CORE_ADDR sp,
int struct_return, CORE_ADDR struct_addr)
for (i = 0; i < nargs; i++)
{
struct value *arg = args[i];
- struct type *type = VALUE_TYPE (arg);
+ struct type *type = value_type (arg);
unsigned length = TYPE_LENGTH (type);
if (s390_function_arg_pass_by_reference (type))
{
sp -= length;
sp = align_down (sp, alignment_of (type));
- write_memory (sp, VALUE_CONTENTS (arg), length);
+ write_memory (sp, value_contents (arg), length);
copy_addr[i] = sp;
}
}
for (i = 0; i < nargs; i++)
{
struct value *arg = args[i];
- struct type *type = VALUE_TYPE (arg);
+ struct type *type = value_type (arg);
unsigned length = TYPE_LENGTH (type);
if (s390_function_arg_pass_by_reference (type))
/* When we store a single-precision value in an FP register,
it occupies the leftmost bits. */
regcache_cooked_write_part (regcache, S390_F0_REGNUM + fr,
- 0, length, VALUE_CONTENTS (arg));
+ 0, length, value_contents (arg));
fr += 2;
}
else
/* When we store a single-precision value in a stack slot,
it occupies the rightmost bits. */
starg = align_up (starg + length, word_size);
- write_memory (starg - length, VALUE_CONTENTS (arg), length);
+ write_memory (starg - length, value_contents (arg), length);
}
}
else if (s390_function_arg_integer (type) && length <= word_size)
if (gr <= 5)
{
regcache_cooked_write (regcache, S390_R0_REGNUM + gr,
- VALUE_CONTENTS (arg));
+ value_contents (arg));
regcache_cooked_write (regcache, S390_R0_REGNUM + gr + 1,
- VALUE_CONTENTS (arg) + word_size);
+ value_contents (arg) + word_size);
gr += 2;
}
else
in it, then don't go back and use it again later. */
gr = 7;
- write_memory (starg, VALUE_CONTENTS (arg), length);
+ write_memory (starg, value_contents (arg), length);
starg += length;
}
}
else
- internal_error (__FILE__, __LINE__, "unknown argument type");
+ internal_error (__FILE__, __LINE__, _("unknown argument type"));
}
}
and the back chain pointer. */
sp -= 16*word_size + 32;
- /* Write the back chain pointer into the first word of the stack
- frame. This is needed to unwind across a dummy frame. */
- regcache_cooked_read_unsigned (regcache, S390_SP_REGNUM, &orig_sp);
- write_memory_unsigned_integer (sp, word_size, orig_sp);
-
/* Store return address. */
regcache_cooked_write_unsigned (regcache, S390_RETADDR_REGNUM, bp_addr);
regcache_cooked_write_unsigned (regcache, S390_SP_REGNUM, sp);
/* We need to return the 'stack part' of the frame ID,
- which is actually the top of the register save area
- allocated on the original stack. */
- return orig_sp + 16*word_size + 32;
+ which is actually the top of the register save area. */
+ return sp + 16*word_size + 32;
}
/* Assuming NEXT_FRAME->prev is a dummy, return the frame ID of that
s390_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *next_frame)
{
int word_size = gdbarch_ptr_bit (gdbarch) / 8;
- CORE_ADDR this_sp = s390_unwind_sp (gdbarch, next_frame);
- CORE_ADDR prev_sp = read_memory_unsigned_integer (this_sp, word_size);
+ CORE_ADDR sp = s390_unwind_sp (gdbarch, next_frame);
- return frame_id_build (prev_sp + 16*word_size + 32,
+ return frame_id_build (sp + 16*word_size + 32,
frame_pc_unwind (next_frame));
}
static enum return_value_convention
s390_return_value (struct gdbarch *gdbarch, struct type *type,
- struct regcache *regcache, void *out, const void *in)
+ struct regcache *regcache, gdb_byte *out,
+ const gdb_byte *in)
{
int word_size = gdbarch_ptr_bit (gdbarch) / 8;
int length = TYPE_LENGTH (type);
else if (length == 2*word_size)
{
regcache_cooked_write (regcache, S390_R2_REGNUM, in);
- regcache_cooked_write (regcache, S390_R3_REGNUM,
- (const char *)in + word_size);
+ regcache_cooked_write (regcache, S390_R3_REGNUM, in + word_size);
}
else
- internal_error (__FILE__, __LINE__, "invalid return type");
+ internal_error (__FILE__, __LINE__, _("invalid return type"));
break;
case RETURN_VALUE_STRUCT_CONVENTION:
- error ("Cannot set function return value.");
+ error (_("Cannot set function return value."));
break;
}
}
else if (length == 2*word_size)
{
regcache_cooked_read (regcache, S390_R2_REGNUM, out);
- regcache_cooked_read (regcache, S390_R3_REGNUM,
- (char *)out + word_size);
+ regcache_cooked_read (regcache, S390_R3_REGNUM, out + word_size);
}
else
- internal_error (__FILE__, __LINE__, "invalid return type");
+ internal_error (__FILE__, __LINE__, _("invalid return type"));
break;
case RETURN_VALUE_STRUCT_CONVENTION:
- error ("Function return value unknown.");
+ error (_("Function return value unknown."));
break;
}
}
/* Breakpoints. */
-static const unsigned char *
+static const gdb_byte *
s390_breakpoint_from_pc (CORE_ADDR *pcptr, int *lenptr)
{
- static unsigned char breakpoint[] = { 0x0, 0x1 };
+ static const gdb_byte breakpoint[] = { 0x0, 0x1 };
*lenptr = sizeof (breakpoint);
return breakpoint;
return 0;
}
-
-/* Link map offsets. */
-
-static struct link_map_offsets *
-s390_svr4_fetch_link_map_offsets (void)
-{
- static struct link_map_offsets lmo;
- static struct link_map_offsets *lmp = NULL;
-
- if (lmp == NULL)
- {
- lmp = &lmo;
-
- lmo.r_debug_size = 8;
-
- lmo.r_map_offset = 4;
- lmo.r_map_size = 4;
-
- lmo.link_map_size = 20;
-
- lmo.l_addr_offset = 0;
- lmo.l_addr_size = 4;
-
- lmo.l_name_offset = 4;
- lmo.l_name_size = 4;
-
- lmo.l_next_offset = 12;
- lmo.l_next_size = 4;
-
- lmo.l_prev_offset = 16;
- lmo.l_prev_size = 4;
- }
-
- return lmp;
-}
-
-static struct link_map_offsets *
-s390x_svr4_fetch_link_map_offsets (void)
-{
- static struct link_map_offsets lmo;
- static struct link_map_offsets *lmp = NULL;
-
- if (lmp == NULL)
- {
- lmp = &lmo;
-
- lmo.r_debug_size = 16; /* All we need. */
-
- lmo.r_map_offset = 8;
- lmo.r_map_size = 8;
-
- lmo.link_map_size = 40; /* All we need. */
-
- lmo.l_addr_offset = 0;
- lmo.l_addr_size = 8;
-
- lmo.l_name_offset = 8;
- lmo.l_name_size = 8;
-
- lmo.l_next_offset = 24;
- lmo.l_next_size = 8;
-
- lmo.l_prev_offset = 32;
- lmo.l_prev_size = 8;
- }
-
- return lmp;
-}
-
-
/* Set up gdbarch struct. */
static struct gdbarch *
set_gdbarch_return_value (gdbarch, s390_return_value);
/* Frame handling. */
- set_gdbarch_in_solib_call_trampoline (gdbarch, in_plt_section);
dwarf2_frame_set_init_reg (gdbarch, s390_dwarf2_frame_init_reg);
frame_unwind_append_sniffer (gdbarch, dwarf2_frame_sniffer);
frame_base_append_sniffer (gdbarch, dwarf2_frame_base_sniffer);
set_gdbarch_addr_bits_remove (gdbarch, s390_addr_bits_remove);
set_gdbarch_pseudo_register_read (gdbarch, s390_pseudo_register_read);
set_gdbarch_pseudo_register_write (gdbarch, s390_pseudo_register_write);
- set_solib_svr4_fetch_link_map_offsets (gdbarch,
- s390_svr4_fetch_link_map_offsets);
+ set_solib_svr4_fetch_link_map_offsets
+ (gdbarch, svr4_ilp32_fetch_link_map_offsets);
break;
case bfd_mach_s390_64:
set_gdbarch_ptr_bit (gdbarch, 64);
set_gdbarch_pseudo_register_read (gdbarch, s390x_pseudo_register_read);
set_gdbarch_pseudo_register_write (gdbarch, s390x_pseudo_register_write);
- set_solib_svr4_fetch_link_map_offsets (gdbarch,
- s390x_svr4_fetch_link_map_offsets);
+ set_solib_svr4_fetch_link_map_offsets
+ (gdbarch, svr4_lp64_fetch_link_map_offsets);
set_gdbarch_address_class_type_flags (gdbarch,
s390_address_class_type_flags);
set_gdbarch_address_class_type_flags_to_name (gdbarch,
set_gdbarch_print_insn (gdbarch, print_insn_s390);
+ /* Enable TLS support. */
+ set_gdbarch_fetch_tls_load_module_address (gdbarch,
+ svr4_fetch_objfile_link_map);
+
return gdbarch;
}
projects / deliverable / binutils-gdb.git / blobdiff