old-cross-binutils/gdb/ia64-linux-tdep.c

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/* Target-dependent code for the IA-64 for GDB, the GNU debugger.
Copyright (C) 2000, 2004, 2005, 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 3 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, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "ia64-tdep.h"
#include "arch-utils.h"
#include "gdbcore.h"
#include "regcache.h"
#include "osabi.h"
#include "solib-svr4.h"
* config/tm-linux.h: Delete file. * config/alpha/alpha-linux.mt (DEPRECATED_TM_FILE): Set to tm-alpha.h. * config/alpha/tm-alphalinux.h: Delete file. * config/arm/linux.mt (DEPRECATED_TM_FILE): Set to tm-arm.h * config/arm/tm-linux.h: Delete file. * config/i386/tm-linux.h: Do not include "config/tm-linux.h". * config/ia64/tm-linux.h: Do not include "config/tm-linux.h". * config/m32r/linux.mt (DEPRECATED_TM_FILE): Remove. * config/mips/tm-linux.h: Do not include "config/tm-linux.h". * config/pa/linux.mt (DEPRECATED_TM_FILE): Set to tm-hppa.h. * config/pa/tm-linux.h: Delete file. * config/powerpc/tm-linux.h: Do not include "config/tm-linux.h". * config/s390/linux.mt (DEPRECATED_TM_FILE): Remove. * config/sh/linux.mt (DEPRECATED_TM_FILE): Set to tm-sh.h. * config/sh/tm-linux.h: Delete file. * alpha-linux-tdep.c: Include "symtab.h". (alpha_linux_init_abi): Call set_gdbarch_skip_trampoline_code. * i386-linux-tdep.c: Include "symtab.h". (i386_linux_init_abi): Call set_gdbarch_skip_trampoline_code. * ia64-linux-tdep.c: Include "symtab.h". (ia64_linux_init_abi): Call set_gdbarch_skip_trampoline_code. * m32r-linux-tdep.c: Include "symtab.h". (m32r_linux_init_abi): Call set_gdbarch_skip_trampoline_code. * mips-linux-tdep.c: Include "symtab.h". (mips_linux_init_abi): Call set_gdbarch_skip_trampoline_code. * sh-linux-tdep.c: Include "symtab.h". (sh_linux_init_abi): Call set_gdbarch_skip_trampoline_code. * s390-tdep.c (s390_gdbarch_init): Call set_gdbarch_skip_trampoline_code. * s390-nat.c: Do not include "tm.h". * Makefile.in (alpha-linux-tdep.o): Add dependency on $(symtab_h). (i386-linux-tdep.o): Likewise. (ia64-linux-tdep.o): Likewise. (m32r-linux-tdep.o): Likewise. (mips-linux-tdep.o): Likewise. (sh-linux-tdep.o): Likewise. (s390-nat.o): Remove dependency on $(tm_h).
2006-11-28 21:41:03 +00:00
#include "symtab.h"
/* The sigtramp code is in a non-readable (executable-only) region
of memory called the ``gate page''. The addresses in question
were determined by examining the system headers. They are
overly generous to allow for different pages sizes. */
#define GATE_AREA_START 0xa000000000000100LL
#define GATE_AREA_END 0xa000000000020000LL
/* Offset to sigcontext structure from frame of handler */
#define IA64_LINUX_SIGCONTEXT_OFFSET 192
* arch-utils.c (legacy_pc_in_sigtramp): Remove. * arch-utils.h (legacy_pc_in_sigtramp): Remove. * config/ia64/linux.mt (DEPRECATED_TM_FILE): Remove. * config/ia64/tm-linux.h: Remove file. * ia64-tdep.h (struct gdbarch_tdep): Add pc_in_sigtramp callback. * ia64-tdep.c (ia64_sigtramp_frame_sniffer): Use it instead of legacy_pc_in_sigtramp. (ia64_gdbarch_init): Initialize tdep->pc_in_sigtramp. * ia64-linux-tdep.c (ia64_linux_pc_in_sigtramp): Make static. Remove func_name argument. (ia64_linux_init_abi): Install it as tdep->pc_in_sigtramp. * infrun.c (HAVE_STEPPABLE_WATCHPOINT): Do not redefine. * target.c (update_current_target): Add to_have_steppable_watchpoint. * target.h (struct target_ops): Add to_have_steppable_watchpoint. (HAVE_STEPPABLE_WATCHPOINT): Define. * config/ia64/linux.mh (NATDEPFILES): Remove core-aout.o. * config/ia64/nm-linux.h (KERNEL_U_ADDR, U_REGS_OFFSET, CANNOT_FETCH_REGISTER, CANNOT_STORE_REGISTER, TARGET_CAN_USE_HARDWARE_WATCHPOINT, HAVE_STEPPABLE_WATCHPOINT, STOPPED_BY_WATCHPOINT, target_stopped_data_address, target_insert_watchpoint, target_remove_watchpoint): Remove. (FETCH_INFERIOR_REGISTERS): Define. * ia64-linux-nat.c (ia64_register_addr): Make static. (ia64_cannot_fetch_register, ia64_cannot_store_register): Likewise. (ia64_linux_insert_watchpoint): Make static. Remove ptid_p argument. (ia64_linux_remove_watchpoint): Likewise. Add type argument. (ia64_linux_stopped_data_address): Make static. Add target_ops. (ia64_linux_stopped_by_watchpoint): Make static. (ia64_linux_can_use_hw_breakpoint): New function. (ia64_linux_fetch_register, ia64_linux_fetch_registers): Likewise. (ia64_linux_store_register, ia64_linux_store_registers): Likewise. (_initialize_ia64_linux_nat): Install register and watchpoint ops.
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static int
ia64_linux_pc_in_sigtramp (CORE_ADDR pc)
{
return (pc >= (CORE_ADDR) GATE_AREA_START && pc < (CORE_ADDR) GATE_AREA_END);
}
/* IA-64 GNU/Linux specific function which, given a frame address and
a register number, returns the address at which that register may be
found. 0 is returned for registers which aren't stored in the the
sigcontext structure. */
static CORE_ADDR
ia64_linux_sigcontext_register_address (CORE_ADDR sp, int regno)
{
char buf[8];
CORE_ADDR sigcontext_addr = 0;
/* The address of the sigcontext area is found at offset 16 in the sigframe. */
read_memory (sp + 16, buf, 8);
sigcontext_addr = extract_unsigned_integer (buf, 8);
if (IA64_GR0_REGNUM <= regno && regno <= IA64_GR31_REGNUM)
return sigcontext_addr + 200 + 8 * (regno - IA64_GR0_REGNUM);
else if (IA64_BR0_REGNUM <= regno && regno <= IA64_BR7_REGNUM)
return sigcontext_addr + 136 + 8 * (regno - IA64_BR0_REGNUM);
else if (IA64_FR0_REGNUM <= regno && regno <= IA64_FR127_REGNUM)
return sigcontext_addr + 464 + 16 * (regno - IA64_FR0_REGNUM);
else
switch (regno)
{
case IA64_IP_REGNUM :
return sigcontext_addr + 40;
case IA64_CFM_REGNUM :
return sigcontext_addr + 48;
case IA64_PSR_REGNUM :
return sigcontext_addr + 56; /* user mask only */
/* sc_ar_rsc is provided, from which we could compute bspstore, but
I don't think it's worth it. Anyway, if we want it, it's at offset
64 */
case IA64_BSP_REGNUM :
return sigcontext_addr + 72;
case IA64_RNAT_REGNUM :
return sigcontext_addr + 80;
case IA64_CCV_REGNUM :
return sigcontext_addr + 88;
case IA64_UNAT_REGNUM :
return sigcontext_addr + 96;
case IA64_FPSR_REGNUM :
return sigcontext_addr + 104;
case IA64_PFS_REGNUM :
return sigcontext_addr + 112;
case IA64_LC_REGNUM :
return sigcontext_addr + 120;
case IA64_PR_REGNUM :
return sigcontext_addr + 128;
default :
return 0;
}
}
static void
* gdbarch.sh (read_pc): Add REGCACHE argument. Remove PTID argument. (write_pc): Likewise. Remove default implementation, add predicate. * gdbarch.c, gdbarch.h: Regenerate. * regcache.c (read_pc_pid): Use current regcache instead of calling read_register_pid. (write_pc_pid): Check gdbarch_write_pc predicate, implement default case inline. (generic_target_write_pc): Remove. * inferior.h (generic_target_write_pc): Remove. * frv-tdep.c (frv_gdbarch_init): Do not install it. * m68hc11-tdep.c (m68hc11_gdbarch_init): Likewise. * rs6000-tdep.c (rs6000_gdbarch_init): Likewise. * sh64-tdep.c (sh64_gdbarch_init): Likewise. * sh-tdep.c (sh_gdbarch_init): Likewise. * xstormy16-tdep.c (xstormy16_gdbarch_init): Likewise. * avr-tdep.c (avr_read_pc): Add REGCACHE argument. Remove PTID argument. Use REGCACHE instead of calling read_register_pid. * hppa-hpux-tdep.c (hppa_hpux_read_pc): Likewise. * hppa-tdep.c (hppa_read_pc): Likewise. * hppa-tdep.h (hppa_read_pc): Likewise. * ia64-tdep.c (ia64_read_pc): Likewise. * m32r-tdep.c (m32r_read_pc): Likewise. * mep-tdep.c (mep_read_pc): Likewise. * mn10300-tdep.c (mn10300_read_pc): Likewise. * spu-tdep.c (spu_read_pc): Likewise. * arm-tdep.c (arm_write_pc): Add REGCACHE argument. Remove PTID argument. Use REGCACHE instead of calling write_register_pid. * avr-tdep.c (avr_write_pc): Likewise. * hppa-hpux-tdep.c (hppa_hpux_write_pc): Likewise. * hppa-tdep.c (hppa_write_pc): Likewise. * hppa-tdep.h (hppa_write_pc): Likewise. * i386-linux-tdep.c (i386_linux_write_pc): Likewise. * amd64-linux-tdep.c (amd64_linux_write_pc): Likewise. * ia64-linux-tdep.c (ia64_linux_write_pc): Likewise. * ia64-tdep.c (ia64_write_pc): Likewise. * ia64-tdep.h (ia64_write_pc): Likewise. * m32r-tdep.c (m32r_write_pc): Likewise. * m88k-tdep.c (m88k_write_pc): Likewise. * mep-tdep.c (mep_write_pc): Likewise. * mips-tdep.c (mips_write_pc): Likewise. * mips-linux-tdep.c (mips_linux_write_pc): Likewise. * mn10300-tdep.c (mn10300_write_pc): Likewise. * sparc-tdep.c (sparc_write_pc): Likewise. * spu-tdep.c (spu_write_pc): Likewise. * mips-tdep.c (read_signed_register): Remove. (read_signed_register_pid): Likewise. (mips_read_pc): Add REGCACHE argument. Remove PTID argument. Use REGCACHE instead of calling read_signed_register_pid.
2007-06-15 22:44:56 +00:00
ia64_linux_write_pc (struct regcache *regcache, CORE_ADDR pc)
{
* gdbarch.sh (read_pc): Add REGCACHE argument. Remove PTID argument. (write_pc): Likewise. Remove default implementation, add predicate. * gdbarch.c, gdbarch.h: Regenerate. * regcache.c (read_pc_pid): Use current regcache instead of calling read_register_pid. (write_pc_pid): Check gdbarch_write_pc predicate, implement default case inline. (generic_target_write_pc): Remove. * inferior.h (generic_target_write_pc): Remove. * frv-tdep.c (frv_gdbarch_init): Do not install it. * m68hc11-tdep.c (m68hc11_gdbarch_init): Likewise. * rs6000-tdep.c (rs6000_gdbarch_init): Likewise. * sh64-tdep.c (sh64_gdbarch_init): Likewise. * sh-tdep.c (sh_gdbarch_init): Likewise. * xstormy16-tdep.c (xstormy16_gdbarch_init): Likewise. * avr-tdep.c (avr_read_pc): Add REGCACHE argument. Remove PTID argument. Use REGCACHE instead of calling read_register_pid. * hppa-hpux-tdep.c (hppa_hpux_read_pc): Likewise. * hppa-tdep.c (hppa_read_pc): Likewise. * hppa-tdep.h (hppa_read_pc): Likewise. * ia64-tdep.c (ia64_read_pc): Likewise. * m32r-tdep.c (m32r_read_pc): Likewise. * mep-tdep.c (mep_read_pc): Likewise. * mn10300-tdep.c (mn10300_read_pc): Likewise. * spu-tdep.c (spu_read_pc): Likewise. * arm-tdep.c (arm_write_pc): Add REGCACHE argument. Remove PTID argument. Use REGCACHE instead of calling write_register_pid. * avr-tdep.c (avr_write_pc): Likewise. * hppa-hpux-tdep.c (hppa_hpux_write_pc): Likewise. * hppa-tdep.c (hppa_write_pc): Likewise. * hppa-tdep.h (hppa_write_pc): Likewise. * i386-linux-tdep.c (i386_linux_write_pc): Likewise. * amd64-linux-tdep.c (amd64_linux_write_pc): Likewise. * ia64-linux-tdep.c (ia64_linux_write_pc): Likewise. * ia64-tdep.c (ia64_write_pc): Likewise. * ia64-tdep.h (ia64_write_pc): Likewise. * m32r-tdep.c (m32r_write_pc): Likewise. * m88k-tdep.c (m88k_write_pc): Likewise. * mep-tdep.c (mep_write_pc): Likewise. * mips-tdep.c (mips_write_pc): Likewise. * mips-linux-tdep.c (mips_linux_write_pc): Likewise. * mn10300-tdep.c (mn10300_write_pc): Likewise. * sparc-tdep.c (sparc_write_pc): Likewise. * spu-tdep.c (spu_write_pc): Likewise. * mips-tdep.c (read_signed_register): Remove. (read_signed_register_pid): Likewise. (mips_read_pc): Add REGCACHE argument. Remove PTID argument. Use REGCACHE instead of calling read_signed_register_pid.
2007-06-15 22:44:56 +00:00
ia64_write_pc (regcache, pc);
/* We must be careful with modifying the instruction-pointer: if we
just interrupt a system call, the kernel would ordinarily try to
restart it when we resume the inferior, which typically results
in SIGSEGV or SIGILL. We prevent this by clearing r10, which
will tell the kernel that r8 does NOT contain a valid error code
and hence it will skip system-call restart.
The clearing of r10 is safe as long as ia64_write_pc() is only
called as part of setting up an inferior call. */
* gdbarch.sh (read_pc): Add REGCACHE argument. Remove PTID argument. (write_pc): Likewise. Remove default implementation, add predicate. * gdbarch.c, gdbarch.h: Regenerate. * regcache.c (read_pc_pid): Use current regcache instead of calling read_register_pid. (write_pc_pid): Check gdbarch_write_pc predicate, implement default case inline. (generic_target_write_pc): Remove. * inferior.h (generic_target_write_pc): Remove. * frv-tdep.c (frv_gdbarch_init): Do not install it. * m68hc11-tdep.c (m68hc11_gdbarch_init): Likewise. * rs6000-tdep.c (rs6000_gdbarch_init): Likewise. * sh64-tdep.c (sh64_gdbarch_init): Likewise. * sh-tdep.c (sh_gdbarch_init): Likewise. * xstormy16-tdep.c (xstormy16_gdbarch_init): Likewise. * avr-tdep.c (avr_read_pc): Add REGCACHE argument. Remove PTID argument. Use REGCACHE instead of calling read_register_pid. * hppa-hpux-tdep.c (hppa_hpux_read_pc): Likewise. * hppa-tdep.c (hppa_read_pc): Likewise. * hppa-tdep.h (hppa_read_pc): Likewise. * ia64-tdep.c (ia64_read_pc): Likewise. * m32r-tdep.c (m32r_read_pc): Likewise. * mep-tdep.c (mep_read_pc): Likewise. * mn10300-tdep.c (mn10300_read_pc): Likewise. * spu-tdep.c (spu_read_pc): Likewise. * arm-tdep.c (arm_write_pc): Add REGCACHE argument. Remove PTID argument. Use REGCACHE instead of calling write_register_pid. * avr-tdep.c (avr_write_pc): Likewise. * hppa-hpux-tdep.c (hppa_hpux_write_pc): Likewise. * hppa-tdep.c (hppa_write_pc): Likewise. * hppa-tdep.h (hppa_write_pc): Likewise. * i386-linux-tdep.c (i386_linux_write_pc): Likewise. * amd64-linux-tdep.c (amd64_linux_write_pc): Likewise. * ia64-linux-tdep.c (ia64_linux_write_pc): Likewise. * ia64-tdep.c (ia64_write_pc): Likewise. * ia64-tdep.h (ia64_write_pc): Likewise. * m32r-tdep.c (m32r_write_pc): Likewise. * m88k-tdep.c (m88k_write_pc): Likewise. * mep-tdep.c (mep_write_pc): Likewise. * mips-tdep.c (mips_write_pc): Likewise. * mips-linux-tdep.c (mips_linux_write_pc): Likewise. * mn10300-tdep.c (mn10300_write_pc): Likewise. * sparc-tdep.c (sparc_write_pc): Likewise. * spu-tdep.c (spu_write_pc): Likewise. * mips-tdep.c (read_signed_register): Remove. (read_signed_register_pid): Likewise. (mips_read_pc): Add REGCACHE argument. Remove PTID argument. Use REGCACHE instead of calling read_signed_register_pid.
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regcache_cooked_write_unsigned (regcache, IA64_GR10_REGNUM, 0);
}
static void
ia64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
/* Set the method of obtaining the sigcontext addresses at which
registers are saved. */
tdep->sigcontext_register_address = ia64_linux_sigcontext_register_address;
* arch-utils.c (legacy_pc_in_sigtramp): Remove. * arch-utils.h (legacy_pc_in_sigtramp): Remove. * config/ia64/linux.mt (DEPRECATED_TM_FILE): Remove. * config/ia64/tm-linux.h: Remove file. * ia64-tdep.h (struct gdbarch_tdep): Add pc_in_sigtramp callback. * ia64-tdep.c (ia64_sigtramp_frame_sniffer): Use it instead of legacy_pc_in_sigtramp. (ia64_gdbarch_init): Initialize tdep->pc_in_sigtramp. * ia64-linux-tdep.c (ia64_linux_pc_in_sigtramp): Make static. Remove func_name argument. (ia64_linux_init_abi): Install it as tdep->pc_in_sigtramp. * infrun.c (HAVE_STEPPABLE_WATCHPOINT): Do not redefine. * target.c (update_current_target): Add to_have_steppable_watchpoint. * target.h (struct target_ops): Add to_have_steppable_watchpoint. (HAVE_STEPPABLE_WATCHPOINT): Define. * config/ia64/linux.mh (NATDEPFILES): Remove core-aout.o. * config/ia64/nm-linux.h (KERNEL_U_ADDR, U_REGS_OFFSET, CANNOT_FETCH_REGISTER, CANNOT_STORE_REGISTER, TARGET_CAN_USE_HARDWARE_WATCHPOINT, HAVE_STEPPABLE_WATCHPOINT, STOPPED_BY_WATCHPOINT, target_stopped_data_address, target_insert_watchpoint, target_remove_watchpoint): Remove. (FETCH_INFERIOR_REGISTERS): Define. * ia64-linux-nat.c (ia64_register_addr): Make static. (ia64_cannot_fetch_register, ia64_cannot_store_register): Likewise. (ia64_linux_insert_watchpoint): Make static. Remove ptid_p argument. (ia64_linux_remove_watchpoint): Likewise. Add type argument. (ia64_linux_stopped_data_address): Make static. Add target_ops. (ia64_linux_stopped_by_watchpoint): Make static. (ia64_linux_can_use_hw_breakpoint): New function. (ia64_linux_fetch_register, ia64_linux_fetch_registers): Likewise. (ia64_linux_store_register, ia64_linux_store_registers): Likewise. (_initialize_ia64_linux_nat): Install register and watchpoint ops.
2007-03-28 18:56:07 +00:00
/* Set the pc_in_sigtramp method. */
tdep->pc_in_sigtramp = ia64_linux_pc_in_sigtramp;
set_gdbarch_write_pc (gdbarch, ia64_linux_write_pc);
* config/tm-linux.h: Delete file. * config/alpha/alpha-linux.mt (DEPRECATED_TM_FILE): Set to tm-alpha.h. * config/alpha/tm-alphalinux.h: Delete file. * config/arm/linux.mt (DEPRECATED_TM_FILE): Set to tm-arm.h * config/arm/tm-linux.h: Delete file. * config/i386/tm-linux.h: Do not include "config/tm-linux.h". * config/ia64/tm-linux.h: Do not include "config/tm-linux.h". * config/m32r/linux.mt (DEPRECATED_TM_FILE): Remove. * config/mips/tm-linux.h: Do not include "config/tm-linux.h". * config/pa/linux.mt (DEPRECATED_TM_FILE): Set to tm-hppa.h. * config/pa/tm-linux.h: Delete file. * config/powerpc/tm-linux.h: Do not include "config/tm-linux.h". * config/s390/linux.mt (DEPRECATED_TM_FILE): Remove. * config/sh/linux.mt (DEPRECATED_TM_FILE): Set to tm-sh.h. * config/sh/tm-linux.h: Delete file. * alpha-linux-tdep.c: Include "symtab.h". (alpha_linux_init_abi): Call set_gdbarch_skip_trampoline_code. * i386-linux-tdep.c: Include "symtab.h". (i386_linux_init_abi): Call set_gdbarch_skip_trampoline_code. * ia64-linux-tdep.c: Include "symtab.h". (ia64_linux_init_abi): Call set_gdbarch_skip_trampoline_code. * m32r-linux-tdep.c: Include "symtab.h". (m32r_linux_init_abi): Call set_gdbarch_skip_trampoline_code. * mips-linux-tdep.c: Include "symtab.h". (mips_linux_init_abi): Call set_gdbarch_skip_trampoline_code. * sh-linux-tdep.c: Include "symtab.h". (sh_linux_init_abi): Call set_gdbarch_skip_trampoline_code. * s390-tdep.c (s390_gdbarch_init): Call set_gdbarch_skip_trampoline_code. * s390-nat.c: Do not include "tm.h". * Makefile.in (alpha-linux-tdep.o): Add dependency on $(symtab_h). (i386-linux-tdep.o): Likewise. (ia64-linux-tdep.o): Likewise. (m32r-linux-tdep.o): Likewise. (mips-linux-tdep.o): Likewise. (sh-linux-tdep.o): Likewise. (s390-nat.o): Remove dependency on $(tm_h).
2006-11-28 21:41:03 +00:00
set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_lp64_fetch_link_map_offsets);
/* Enable TLS support. */
set_gdbarch_fetch_tls_load_module_address (gdbarch,
svr4_fetch_objfile_link_map);
}
void
_initialize_ia64_linux_tdep (void)
{
gdbarch_register_osabi (bfd_arch_ia64, 0, GDB_OSABI_LINUX,
ia64_linux_init_abi);
}