mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-15 04:31:49 +08:00
b275693032
* gdbarch.c, gdbarch.h: Regenerate. * dwarf2loc.c (dwarf_expr_tls_address): Fetch TLS load module address and pass this address, instead of the objfile address, to target_get_thread_local_address(). * linux-thread-db.c (thread_db_get_thread_local_address): Change second parameter from type ``struct objfile *'' to CORE_ADDR. Do not call svr4_fetch_objfile_link_map() to fetch the load module address. * target.h (struct target_ops): Change second parameter of ``to_get_thread_local_address'' from ``struct objfile *'' to ``CORE_ADDR''. * alpha-linux-tdep.c (solib-svr4.h): Include. (alpha_linux_init_abi): Register TLS load module fetcher. * amd64-linux-tdep.c (amd64_linux_init_abi): Likewise. * hppa-linux-tdep.c (hppa_linux_init_abi): Likewise. * i386-linux-tdep.c (i386_linux_init_abi): Likewise. * ia64-linux-tdep.c (solib-svr4.h): Include. (ia64_linux_init_abi): Register TLS load module fetcher. * m32r-linux-tdep.c (m32r_linux_init_abi): Likewise. * m68klinux-tdep.c (m68k_linux_init_abi): Likewise. * mips-linux-tdep.c (mips_linux_init_abi): Likewise. * s390-tdep.c (s390_gdbarch_init): Likewise. * sparc-linux-tdep.c (sparc32_linux_init_abi): Likewise. * sparc64-linux-tdep.c (solib-svr4.h): Include. (sparc64_linux_init_abi): Register TLS load module fetcher. * Makefile.in (alpha-linux-tdep.o, ia64-linux-tdep.o) (sparc-linux-tdep.o): Update dependencies.
140 lines
4.7 KiB
C
140 lines
4.7 KiB
C
/* Target-dependent code for the IA-64 for GDB, the GNU debugger.
|
|
|
|
Copyright 2000, 2004, 2005 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 "ia64-tdep.h"
|
|
#include "arch-utils.h"
|
|
#include "gdbcore.h"
|
|
#include "regcache.h"
|
|
#include "osabi.h"
|
|
#include "solib-svr4.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
|
|
|
|
int
|
|
ia64_linux_in_sigtramp (CORE_ADDR pc, char *func_name)
|
|
{
|
|
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
|
|
ia64_linux_write_pc (CORE_ADDR pc, ptid_t ptid)
|
|
{
|
|
ia64_write_pc (pc, ptid);
|
|
|
|
/* 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. */
|
|
write_register_pid (IA64_GR10_REGNUM, 0, ptid);
|
|
}
|
|
|
|
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;
|
|
|
|
set_gdbarch_write_pc (gdbarch, ia64_linux_write_pc);
|
|
|
|
/* 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);
|
|
}
|