/* Target-dependent code for SPARC.
- Copyright (C) 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008
+ Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
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., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "arch-utils.h"
int i;
/* If we can't read the instruction at PC, return zero. */
- if (read_memory_nobpt (pc, buf, sizeof (buf)))
+ if (target_read_memory (pc, buf, sizeof (buf)))
return 0;
insn = 0;
}
\f
-/* Return the contents if register REGNUM as an address. */
-
-CORE_ADDR
-sparc_address_from_register (int regnum)
-{
- ULONGEST addr;
-
- regcache_cooked_read_unsigned (current_regcache, regnum, &addr);
- return addr;
-}
-\f
-
/* The functions on this page are intended to be used to classify
function arguments. */
/* Return the name of register REGNUM. */
static const char *
-sparc32_register_name (int regnum)
+sparc32_register_name (struct gdbarch *gdbarch, int regnum)
{
if (regnum >= 0 && regnum < SPARC32_NUM_REGS)
return sparc32_register_names[regnum];
static CORE_ADDR
sparc32_push_dummy_code (struct gdbarch *gdbarch, CORE_ADDR sp,
- CORE_ADDR funcaddr, int using_gcc,
+ CORE_ADDR funcaddr,
struct value **args, int nargs,
struct type *value_type,
- CORE_ADDR *real_pc, CORE_ADDR *bp_addr)
+ CORE_ADDR *real_pc, CORE_ADDR *bp_addr,
+ struct regcache *regcache)
{
*bp_addr = sp - 4;
*real_pc = funcaddr;
- if (using_struct_return (value_type, using_gcc))
+ if (using_struct_return (NULL, value_type))
{
gdb_byte buf[4];
location for inserting the breakpoint. */
static const gdb_byte *
-sparc_breakpoint_from_pc (CORE_ADDR *pc, int *len)
+sparc_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pc, int *len)
{
static const gdb_byte break_insn[] = { 0x91, 0xd0, 0x20, 0x01 };
}
CORE_ADDR
-sparc_analyze_prologue (CORE_ADDR pc, CORE_ADDR current_pc,
- struct sparc_frame_cache *cache)
+sparc_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc,
+ CORE_ADDR current_pc, struct sparc_frame_cache *cache)
{
- struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
unsigned long insn;
int offset = 0;
int dest = -1;
START_PC. */
static CORE_ADDR
-sparc32_skip_prologue (CORE_ADDR start_pc)
+sparc32_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc)
{
struct symtab_and_line sal;
CORE_ADDR func_start, func_end;
return sal.end;
}
- start_pc = sparc_analyze_prologue (start_pc, 0xffffffffUL, &cache);
+ start_pc = sparc_analyze_prologue (gdbarch, start_pc, 0xffffffffUL, &cache);
/* The psABI says that "Although the first 6 words of arguments
reside in registers, the standard stack frame reserves space for
cache->pc = frame_func_unwind (next_frame, NORMAL_FRAME);
if (cache->pc != 0)
- sparc_analyze_prologue (cache->pc, frame_pc_unwind (next_frame), cache);
+ sparc_analyze_prologue (get_frame_arch (next_frame), cache->pc,
+ frame_pc_unwind (next_frame), cache);
if (cache->frameless_p)
{
}
static enum return_value_convention
-sparc32_return_value (struct gdbarch *gdbarch, struct type *type,
- struct regcache *regcache, gdb_byte *readbuf,
- const gdb_byte *writebuf)
+sparc32_return_value (struct gdbarch *gdbarch, struct type *func_type,
+ struct type *type, struct regcache *regcache,
+ gdb_byte *readbuf, const gdb_byte *writebuf)
{
/* The psABI says that "...every stack frame reserves the word at
%fp+64. If a function returns a structure, union, or
software single-step mechanism. */
static CORE_ADDR
-sparc_analyze_control_transfer (struct gdbarch *arch,
+sparc_analyze_control_transfer (struct frame_info *frame,
CORE_ADDR pc, CORE_ADDR *npc)
{
unsigned long insn = sparc_fetch_instruction (pc);
else if (X_OP (insn) == 2 && X_OP3 (insn) == 0x3a)
{
/* Trap instruction (TRAP). */
- return gdbarch_tdep (arch)->step_trap (insn);
+ return gdbarch_tdep (get_frame_arch (frame))->step_trap (frame, insn);
}
/* FIXME: Handle DONE and RETRY instructions. */
}
static CORE_ADDR
-sparc_step_trap (unsigned long insn)
+sparc_step_trap (struct frame_info *frame, unsigned long insn)
{
return 0;
}
int
-sparc_software_single_step (enum target_signal sig, int insert_breakpoints_p)
+sparc_software_single_step (struct frame_info *frame)
{
- struct gdbarch *arch = current_gdbarch;
+ struct gdbarch *arch = get_frame_arch (frame);
struct gdbarch_tdep *tdep = gdbarch_tdep (arch);
CORE_ADDR npc, nnpc;
- if (insert_breakpoints_p)
- {
- CORE_ADDR pc, orig_npc;
+ CORE_ADDR pc, orig_npc;
- pc = sparc_address_from_register (tdep->pc_regnum);
- orig_npc = npc = sparc_address_from_register (tdep->npc_regnum);
+ pc = get_frame_register_unsigned (frame, tdep->pc_regnum);
+ orig_npc = npc = get_frame_register_unsigned (frame, tdep->npc_regnum);
- /* Analyze the instruction at PC. */
- nnpc = sparc_analyze_control_transfer (arch, pc, &npc);
- if (npc != 0)
- insert_single_step_breakpoint (npc);
+ /* Analyze the instruction at PC. */
+ nnpc = sparc_analyze_control_transfer (frame, pc, &npc);
+ if (npc != 0)
+ insert_single_step_breakpoint (npc);
- if (nnpc != 0)
- insert_single_step_breakpoint (nnpc);
+ if (nnpc != 0)
+ insert_single_step_breakpoint (nnpc);
- /* Assert that we have set at least one breakpoint, and that
- they're not set at the same spot - unless we're going
- from here straight to NULL, i.e. a call or jump to 0. */
- gdb_assert (npc != 0 || nnpc != 0 || orig_npc == 0);
- gdb_assert (nnpc != npc || orig_npc == 0);
- }
- else
- remove_single_step_breakpoints ();
+ /* Assert that we have set at least one breakpoint, and that
+ they're not set at the same spot - unless we're going
+ from here straight to NULL, i.e. a call or jump to 0. */
+ gdb_assert (npc != 0 || nnpc != 0 || orig_npc == 0);
+ gdb_assert (nnpc != npc || orig_npc == 0);
return 1;
}
static void
-sparc_write_pc (CORE_ADDR pc, ptid_t ptid)
+sparc_write_pc (struct regcache *regcache, CORE_ADDR pc)
{
- struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
-
- write_register_pid (tdep->pc_regnum, pc, ptid);
- write_register_pid (tdep->npc_regnum, pc + 4, ptid);
-}
-\f
-/* Unglobalize NAME. */
-
-char *
-sparc_stabs_unglobalize_name (char *name)
-{
- /* The Sun compilers (Sun ONE Studio, Forte Developer, Sun WorkShop,
- SunPRO) convert file static variables into global values, a
- process known as globalization. In order to do this, the
- compiler will create a unique prefix and prepend it to each file
- static variable. For static variables within a function, this
- globalization prefix is followed by the function name (nested
- static variables within a function are supposed to generate a
- warning message, and are left alone). The procedure is
- documented in the Stabs Interface Manual, which is distrubuted
- with the compilers, although version 4.0 of the manual seems to
- be incorrect in some places, at least for SPARC. The
- globalization prefix is encoded into an N_OPT stab, with the form
- "G=<prefix>". The globalization prefix always seems to start
- with a dollar sign '$'; a dot '.' is used as a seperator. So we
- simply strip everything up until the last dot. */
-
- if (name[0] == '$')
- {
- char *p = strrchr (name, '.');
- if (p)
- return p + 1;
- }
+ struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache));
- return name;
+ regcache_cooked_write_unsigned (regcache, tdep->pc_regnum, pc);
+ regcache_cooked_write_unsigned (regcache, tdep->npc_regnum, pc + 4);
}
\f
/* Clear out the top half of the temporary buffer, and put the
register value in the bottom half if we're in 64-bit mode. */
- if (gdbarch_ptr_bit (current_gdbarch) == 64)
+ if (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 64)
{
memset (buf, 0, 4);
offset = 4;
sp &= 0xffffffffUL;
/* Only use the bottom half if we're in 64-bit mode. */
- if (gdbarch_ptr_bit (current_gdbarch) == 64)
+ if (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 64)
offset = 4;
for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++)
projects / deliverable / binutils-gdb.git / blobdiff