old-cross-binutils/gdb/sparc-nat.c
Mark Kettenis 386c036baa * Makefile.in (ALLDEPFILES): Remove sparc-linux-nat.c and
sparcl-tdep.c.  Add sparc-linux-tdep.c, sparc-sol2-nat.c,
sparc-sol2-tdep.c, sparc-sol2-nat.c, sparc-sol2-tdep.c,
sparc64-linux-nat.c, sparc64-linux-tdep.c, sparc64-nat.c,
sparc64-sol2-tdep.c, sparc64-tdep.c, sparc64fbsd-nat.c,
sparc64fbsd-tdep.c, sparcnbsd-nat.c, sparcnbsd-tdep.c.
(sparc_nat_h): New variable.
(sparcbsd_nat_h, sparcnbsd_tdep_h): Remove variables.
(tm-sun4os4.h): Remove dependency.
(sparcbsd-nat.o, sparc-linux-nat.o): Remove dependencies.
(sparc64fbsd-nat.o, sparc64fbsd-tdep.o, sparc64nbsd-nat.o,
sparc64-tdep.o, sparc-nat.o, sparcnbsd-nat.o, sparcnbsd-tdep.o,
sparc-tdep.o): Update dependencies.
(sparc-linux-tdep.o, sparc-sol2-nat.o, sparc-sol2-tdep.o,
sparc64-linux-nat.o, sparc64-linux-tdep.o, sparc64-nat.o,
sparc64-sol2-tdep.o, sparc64-tdep.o, sparc64nbsd-tdep.o): New
dependencies.
* configure.host: Remove existing sparc-*-lynxos*,
sparc-*-solaris*, sparc-*-sunos4*, sparc-*-sunos5*, sparc-*-*,
ultrasparc-*-freebsd, sparcv9-*-freebsd, sparc64-*-linux*,
sparcv9-*-* and sparc64-*-* triplets.  Add new sparc64-*-linux*,
sparc-*-solaris2*, sparcv9-*-solaris2* and sparc64-*-solaris2*
triplets.
* configure.tgt: Remove exitsing sparc-*-aout*, sparc-*-coff*,
sparc-*-elf*, sparc*-lynxos*, sparc-*-solars2*, sparc-*-sunos4*,
sparc-*-sunos5*, sparc-*-vxworks*, sparc64-*linux*, sparc64-*-*,
sparcv9-*-* and commented out sparc64-*-solars2* triplets.  Add
new sparc-*-solaris2.[0-6], sparc-*-solaris2.[0-6].*,
sparc64-*-linux, sparc-*-solaris2*, sparcv9-*-solaris*,
sparc64-*-solaris2* and sparc64-*-* triplets.
* sparc64-tdep.c: Update copyright year.  Include "inferior.h",
"symtab.h" and "objfiles.h".
(BIAS): Remove define.
(X_OP, X_RD, X_A, X_COND, X_OP2, X_IMM22, X_OP3, X_I, X_DISP22)
(X_DISP19): Remove macros.
(sparc_fetch_instruction): Remove function.
(struct gdbarch_tdep): Remove definition.
(SPARC64_NUM_REGS, SPARC64_NUM_PSEUDO_REGS): Use ARRAY_SIZE.
(sparc_breakpoint_from_pc): Remove function.
(struct sparc64_frame_cache): Remove definition.
(sparc64_alloc_frame_cache, sparc64_analyze_prologue,
sparc64_unwind_pc): Remove functions.
(sparc64_skip_prologue): Use `struct sparc_frame_cache' instead of
`struct sparc64_frame_cache.  Call sparc_analyze_prologue instead
of sparc64_analyze_prologue.  Mark constant as ULL instead of UL.
(sparc64_frame_cache): Change return type to `struct
sparc_frame_cache *'.  Simply call sparc_frame_cache.
(sparc64_frame_this_id, sparc64_frame_prev_register,
sparc64_frame_base_address): Use `struct sparc_frame_cache'
instead of `struct sparc64_frame_cache.
(sparc_unwind_dummy_id, sparc_extract_struct_value_address,
sparc_analyze_control_transfer, sparc_software_single_step,
sparc64_gdbarch_init, sparc_supply_rwindow, sparc_fill_rwindow,
_initialize_sparc64_tdep): Remove functions.
(TSTATE_CWP, TSTATE_ICC, TSTATE_XCC): New macros.
(PSR_S, PSR_ICC, PSR_VERS, PSR_IMPL, PSR_V8PLUS, PSR_XCC): New
macros.
(sparc64_supply_gregset, sparc64_collect_gregset,
sparc64_supply_fpregset, sparc64_collect_fpregset): New functions.
(sparc64_init_abi): New function.
* sparc64-tdep.h: Update copyright year.  Fix typo in multiple
inclusion guard.  Include "sparc-tdep.h".
(BIAS): Define.
(r_tstate_offset, r_fprs_offset): New defines.
(enum sparc_regnum): Remove defenition.
(enum sparc64_regnum): Reformat.
(sparc_supply_rwindow, sparc_fill_rwindow): Remove prototypes.
(sparc64_init_abi, sparc64_supply_gregset,
sparc64_collect_gregset, sparc64_supply_fpregset,
sparc64_collect_fpregset): New prototypes.
(sparc64_sol2_gregset, sparc64nbsd_gregset, sparc64fbsd_gregset):
Add extern declarations.
(sparc64_sol2_init_abi): New prototype.
(sparc64fbsd_supply_reg, sparc64fbsd_fill_reg)
(sparc64fbsd_supply_fpreg, sparc64fbsd_fill_fpreg): Remove
prototypes.
* sparc64fbsd-nat.c: Include "sparc-nat.h", don't include
"sparnbsd-nat.h".
(sparc64fbsd_reg_supplies_p, sparc64fbsd_fpreg_supplies_p): Remove
functions.
(_initialize_sparc64fbsd_nat): Remove initialization of
sparcbsd_supply_reg, sparcbsd_fill_reg, sparcbsd_supply_fpreg,
sparcbsd_fill_fpreg, sparcbsd_reg_supplies_p,
sparcbsd_fpreg_supplies_p.  Initialize sparc_gregset.
* sparc64fbsd-tdep.c: Update copyright year.  Include "frame.h",
"frame-unwind.h", "trad-frame.h" and "gdb_assert.h".
(sparc64fbsd_r_global_offset, sparc64fbsd_r_out_offset)
(sparc64fbsd_r_fprs_offset, sparc64fbsd_r_tnpc_offset)
(sparc64fbsd_r_tpc_offset, sparc64fbsd_r_tstate_offset)
(sparc64fbsd_r_y_offset): Remove variables.
(sparc64fbsd_sizeof_struct_reg, sparc64fbsd_sizeof_struct_fpreg):
Make static and const.
(sparc64fbsd_supply_reg, sparc64fbsd_fill_reg)
(sparc64fbsd_supply_fpreg, sparc64fbsd_fill_fpreg): Remove
functions.
(sparc64fbsd_gregset): New variable.
(fetch_core_registers): Replace calls to sparc64fbsd_supply_reg
and sparc64fbsd_supply_fpreg with calls to sparc64_supply_gregset
and sparc64_supply_fpregset.
(sparc64fbsd_pc_in_sigtramp, sparc64fbsd_sigtramp_frame_cache)
(sparc64fbsd_sigtramp_frame_this_id)
(sparc64fbsd_sigtramp_frame_prev_register): New functions.
(sparc64fbsd_sigtramp_frame_unwind): New variable.
(sparc64fbsd_sigtramp_frame_sniffer): New function.
(sparc64fbsd_init_abi): Set pc_in_sigtramp, append
sparc64fbsd_sigtramp_frame_sniffer.  Call sparc64_init_abi.
* sparcnbsd-tdep.c: Update copyright year.  Include
"floatformat.h", "frame.h", "frame-unwind.h", "symtab.h",
"trad-frame.h" and "gdb_assert.h", don't include "target.h",
"value.h" and "sparcnbsd-tdep.h".
(REG32_OFFSET_PSR, REG32_OFFSET_PC, REG32_OFFSET_NPC)
(REG32_OFFSET_Y, REG32_OFFSET_GLOBAL, REG32_OFFSET_OUT)
(REG64_OFFSET_TSTATE, REG64_OFFSET_PC, REG64_OFFSET_NPC)
(REG64_OFFSET_Y, REG64_OFFSET_GLOBAL, REG64_OFFSET_OUT): Remove
defines.
(sparcnbsd_gregset): New variable.
(sparcnbsd_supply_reg32, sparcnbsd_supply_reg64)
(sparcnbsd_fill_reg32, sparcnbsd_fill_reg64)
(sparcnbsd_supply_fpreg32, sparcnbsd_supply_fpreg64)
(sparcnbsd_fill_reg32, sparcnbsd_fill_reg64): Remove functions.
(sparc32nbsd_sigtramp_start, sparc32nbsd_sigtramp_end): New
variables.
(sparc32nbsd_pc_in_sigtramp, sparc32nbsd_sigcontext_frame_cache)
(sparc32nbsd_sigcontext_frame_this_id)
(sparc32nbsd_sigcontext_frame_prev_register): New functions.
(sparc32nbsd_sigcontext_frame_unwind): New variable.
(sparc32nbsd_sigtramp_frame_sniffer): New function.
(sparcnbsd_get_longjmp_target_32,
sparcnbsd_get_longjmp_target_64): Remove functions.
(sparcnbsd_aout_in_solib_call_trampoline): Rewrite.
(sparcnbsd_init_abi_common, sparcnbsd_init_aout,
sparcnbsd_init_elf): Remove.
(sparcnbsd_init_abi, sparcnbsd_aout_init_abi)
(sparcnbsd_elf_init_abi): New functions.
(_initialize_sparcnbsd_tdep): New prototype.
(_initialize_sparnbsd_tdep): Update.
* config/sparc/fbsd.mh (NATDEPFILES): Remove sparcbsd-nat.o and
corelow.o.  Add sparc64-nat.o and sparc-nat.o.
* config/sparc/fbsd.mt (TDEPFILES): Add sparc-tdep.o and corelow.o.
* config/sparc/linux.mh: Update comment.
(XM_FILE, HOST_IPC): Remove variables.
(NATDEPFILES): Add sparc-sol2-nat.o and core-regset.o.  Remove
sparc-linux-nat.o.
* config/sparc/linux.mt: Update comment.
(TDEPFILES): Add sparc-sol2-tdep.o and sparc-linux-tdep.o.
* config/sparc/nbsd.mt: Reformat.
* config/sparc/nbsd64.mh: Update comment.
(NATDEPFILES): Add sparc-nat.o.
* config/sparc/nbsd64.mt: Update comment.
(TDEPFILES): Add sparc64-tdep.o and sparc64nbsd-tdep.o.
(TM_FILE): Set to tm-nbsd.h.
* config/sparc/nbsdelf.mh: Update comment.
(NATDEPFILES): Add sparc-nat.o.
(XM_FILE): Delete.
* config/sparc/nbsdaout.mh: Update comment.
(NATDEPFILES): Add sparc-nat.o
(XM_FILE): Delete.
* config/sparc/nm-linux.h: Update copyright year.  Don't include
"config/nm-svr4.h" and "solib.h".  Add protection against multiple
inclusion.
(KERNEL_U_SIZE): Remove define.
(kernel_u_size): Remove prototype.
(PTRACE_ARG3_TYPE, PTRACE_XFER_TYPE): Define.
* config/sparc/nm-nbsd.h: Update copyright.  Don't include
"regcache.h".
(CHILD_PREPARE_TO_STORE): Remove define.
* config/sparc/nm-nbsdaout.h: Tweak some comments.
* sparc-nat.c, sparc-tdep.c, sparc-tdep.h, sparc64nbsd-nat.c,
sparcnbsd-nat.c: Rewrite files.
* config/sparc/tm-linux.h, config/sparc/tm-nbsd.h: Rewrite files.
* sparc-linux-nat.c, sparcbsd-nat.c, sparcbsd-nat.h,
sparcnbsd-tdep.h: Remove files.
* config/sparc/nm-sparclynx.h, config/sparc/nm-sun4os4.h,
config/sparc/nm-sun4sol2.h, config/sparc/sp64.mt,
config/sparc/sp64linux.mt, config/sparc/sp64sol2.mt,
config/sparc/sparc-em.mt, config/sparc/sparclynx.mh,
config/sparc/sparclynx.mt, config/sparc/sun4os4.mh,
config/sparc/sun4os4.mt, config/sparc/sun4sol2.mh,
config/sparc/sun4sol2.mt, config/sparc/tm-sp64.h,
config/sparc/tm-sp64linux.h, config/sparc/tm-sparc.h,
config/sparc/tm-sparclynx.h, config/sparc/tm-spc-em.h,
config/sparc/tm-sun4os4.h, config/sparc/tm-sun4sol2.h,
config/sparc/tm-vxsparc.h, config/sparc/vxsparc.mt,
config/sparc/xm-linux.h, config/sparc/xm-sun4sol2.h: Remove files.
* sparc-linux-tdep.c, sparc-nat.h, sparc-sol2-nat.c,
sparc-sol2-tdep.c, sparc64-linux-nat.c, sparc64-linux-t dep.c,
sparc64-nat.c, sparc64-sol2-tdep.c, sparc64nbsd-tdep.c: New files.
* config/sparc/linux64.mh, config/sparc/linux64.mt,
config/sparc/nm-sol2.h, config/sparc/sol2-64.mt,
config/sparc/sol2.mh, config/sparc/sol2.mt, config/sparc/sparc.mt,
config/sparc/sparc64.mt, config/sparc/tm-sol2.h: New files.
2004-01-03 10:08:45 +00:00

272 lines
8.4 KiB
C
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/* Native-dependent code for SPARC.
Copyright 2003 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
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "inferior.h"
#include "regcache.h"
#include <signal.h>
#include "gdb_string.h"
#include <sys/ptrace.h>
#include "gdb_wait.h"
#ifdef HAVE_MACHINE_REG_H
#include <machine/reg.h>
#endif
#include "sparc-tdep.h"
#include "sparc-nat.h"
/* With some trickery we can use the code in this file for most (if
not all) ptrace(2) based SPARC systems, which includes SunOS 4,
Linux and the various SPARC BSD's.
First, we need a data structure for use with ptrace(2). SunOS has
`struct regs' and `struct fp_status' in <machine/reg.h>. BSD's
have `struct reg' and `struct fpreg' in <machine/reg.h>. GNU/Linux
has the same structures as SunOS 4, but they're in <asm/reg.h>,
which is a kernel header. As a general rule we avoid including
GNU/Linux kernel headers. Fortunately GNU/Linux has a `gregset_t'
and a `fpregset_t' that are equivalent to `struct regs' and `struct
fp_status' in <sys/ucontext.h>, which is automatically included by
<signal.h>. Settling on using the `gregset_t' and `fpregset_t'
typedefs, providing them for the other systems, therefore solves
the puzzle. */
#ifdef HAVE_MACHINE_REG_H
#ifdef HAVE_STRUCT_REG
typedef struct reg gregset_t;
typedef struct fpreg fpregset_t;
#else
typedef struct regs gregset_t;
typedef struct fp_status fpregset_t;
#endif
#endif
/* Second, we need to remap the BSD ptrace(2) requests to their SunOS
equivalents. GNU/Linux already follows SunOS here. */
#ifndef PTRACE_GETREGS
#define PTRACE_GETREGS PT_GETREGS
#endif
#ifndef PTRACE_SETREGS
#define PTRACE_SETREGS PT_SETREGS
#endif
#ifndef PTRACE_GETFPREGS
#define PTRACE_GETFPREGS PT_GETFPREGS
#endif
#ifndef PTRACE_SETFPREGS
#define PTRACE_SETFPREGS PT_SETFPREGS
#endif
/* Register set description. */
const struct sparc_gregset *sparc_gregset;
void (*sparc_supply_gregset) (const struct sparc_gregset *,
struct regcache *, int , const void *);
void (*sparc_collect_gregset) (const struct sparc_gregset *,
const struct regcache *, int, void *);
void (*sparc_supply_fpregset) (struct regcache *, int , const void *);
void (*sparc_collect_fpregset) (const struct regcache *, int , void *);
int (*sparc_gregset_supplies_p) (int);
int (*sparc_fpregset_supplies_p) (int);
/* Determine whether `gregset_t' contains register REGNUM. */
int
sparc32_gregset_supplies_p (int regnum)
{
/* Integer registers. */
if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_G7_REGNUM)
|| (regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM)
|| (regnum >= SPARC_L0_REGNUM && regnum <= SPARC_L7_REGNUM)
|| (regnum >= SPARC_I0_REGNUM && regnum <= SPARC_I7_REGNUM))
return 1;
/* Control registers. */
if (regnum == SPARC32_PC_REGNUM
|| regnum == SPARC32_NPC_REGNUM
|| regnum == SPARC32_PSR_REGNUM
|| regnum == SPARC32_Y_REGNUM)
return 1;
return 0;
}
/* Determine whether `fpregset_t' contains register REGNUM. */
int
sparc32_fpregset_supplies_p (int regnum)
{
/* Floating-point registers. */
if (regnum >= SPARC_F0_REGNUM && regnum <= SPARC_F31_REGNUM)
return 1;
/* Control registers. */
if (regnum == SPARC32_FSR_REGNUM)
return 1;
return 0;
}
/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
for all registers (including the floating-point registers). */
void
fetch_inferior_registers (int regnum)
{
struct regcache *regcache = current_regcache;
int pid;
/* NOTE: cagney/2002-12-03: This code assumes that the currently
selected light weight processes' registers can be written
directly into the selected thread's register cache. This works
fine when given an 1:1 LWP:thread model (such as found on
GNU/Linux) but will, likely, have problems when used on an N:1
(userland threads) or N:M (userland multiple LWP) model. In the
case of the latter two, the LWP's registers do not necessarily
belong to the selected thread (the LWP could be in the middle of
executing the thread switch code).
These functions should instead be paramaterized with an explicit
object (struct regcache, struct thread_info?) into which the LWPs
registers can be written. */
pid = TIDGET (inferior_ptid);
if (pid == 0)
pid = PIDGET (inferior_ptid);
if (regnum == SPARC_G0_REGNUM)
{
regcache_raw_supply (regcache, SPARC_G0_REGNUM, NULL);
return;
}
if (regnum == -1 || sparc_gregset_supplies_p (regnum))
{
gregset_t regs;
if (ptrace (PTRACE_GETREGS, pid, (PTRACE_ARG3_TYPE) &regs, 0) == -1)
perror_with_name ("Couldn't get registers");
sparc_supply_gregset (sparc_gregset, regcache, -1, &regs);
if (regnum != -1)
return;
}
if (regnum == -1 || sparc_fpregset_supplies_p (regnum))
{
fpregset_t fpregs;
if (ptrace (PTRACE_GETFPREGS, pid, (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
perror_with_name ("Couldn't get floating point status");
sparc_supply_fpregset (regcache, -1, &fpregs);
}
}
void
store_inferior_registers (int regnum)
{
struct regcache *regcache = current_regcache;
int pid;
/* NOTE: cagney/2002-12-02: See comment in fetch_inferior_registers
about threaded assumptions. */
pid = TIDGET (inferior_ptid);
if (pid == 0)
pid = PIDGET (inferior_ptid);
if (regnum == -1 || sparc_gregset_supplies_p (regnum))
{
gregset_t regs;
if (ptrace (PTRACE_GETREGS, pid, (PTRACE_ARG3_TYPE) &regs, 0) == -1)
perror_with_name ("Couldn't get registers");
sparc_collect_gregset (sparc_gregset, regcache, regnum, &regs);
if (ptrace (PTRACE_SETREGS, pid, (PTRACE_ARG3_TYPE) &regs, 0) == -1)
perror_with_name ("Couldn't write registers");
/* Deal with the stack regs. */
if (regnum == -1 || regnum == SPARC_SP_REGNUM
|| (regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM))
{
ULONGEST sp;
regcache_cooked_read_unsigned (regcache, SPARC_SP_REGNUM, &sp);
sparc_collect_rwindow (regcache, sp, regnum);
}
if (regnum != -1)
return;
}
if (regnum == -1 || sparc_fpregset_supplies_p (regnum))
{
fpregset_t fpregs, saved_fpregs;
if (ptrace (PTRACE_GETFPREGS, pid, (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
perror_with_name ("Couldn't get floating-point registers");
memcpy (&saved_fpregs, &fpregs, sizeof (fpregs));
sparc_collect_fpregset (regcache, regnum, &fpregs);
/* Writing the floating-point registers will fail on NetBSD with
EINVAL if the inferior process doesn't have an FPU state
(i.e. if it didn't use the FPU yet). Therefore we don't try
to write the registers if nothing changed. */
if (memcmp (&saved_fpregs, &fpregs, sizeof (fpregs)) != 0)
{
if (ptrace (PTRACE_SETFPREGS, pid,
(PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
perror_with_name ("Couldn't write floating-point registers");
}
if (regnum != -1)
return;
}
}
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_sparc_nat (void);
void
_initialize_sparc_nat (void)
{
/* Deafult to using SunOS 4 register sets. */
if (sparc_gregset == NULL)
sparc_gregset = &sparc32_sunos4_gregset;
if (sparc_supply_gregset == NULL)
sparc_supply_gregset = sparc32_supply_gregset;
if (sparc_collect_gregset == NULL)
sparc_collect_gregset = sparc32_collect_gregset;
if (sparc_supply_fpregset == NULL)
sparc_supply_fpregset = sparc32_supply_fpregset;
if (sparc_collect_fpregset == NULL)
sparc_collect_fpregset = sparc32_collect_fpregset;
if (sparc_gregset_supplies_p == NULL)
sparc_gregset_supplies_p = sparc32_gregset_supplies_p;
if (sparc_fpregset_supplies_p == NULL)
sparc_fpregset_supplies_p = sparc32_fpregset_supplies_p;
}