/* Target-dependent code for Solaris SPARC.
- Copyright 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011
+ 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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "frame.h"
#include "gdb_assert.h"
#include "gdb_string.h"
+#include "sol2-tdep.h"
#include "sparc-tdep.h"
#include "solib-svr4.h"
`ucontext_t', which has a member `uc_mcontext' that contains the
saved registers. Incidentally, the kernel passes the `ucontext_t'
pointer as the third argument of the signal trampoline too, and
- `sigacthandler' simply passes it on. However, if you link your
+ `sigacthandler' simply passes it on. However, if you link your
program with "-L/usr/ucblib -R/usr/ucblib -lucb", the function
`ucbsigvechandler' will be used, which invokes the using the BSD
convention, where the third argument is a pointer to an instance of
sparc_sol2_pc_in_sigtramp (CORE_ADDR pc, char *name)
{
return (name && (strcmp (name, "sigacthandler") == 0
- || strcmp (name, "ucbsigvechandler") == 0));
+ || strcmp (name, "ucbsigvechandler") == 0
+ || strcmp (name, "__sighndlr") == 0));
}
static struct sparc_frame_cache *
-sparc32_sol2_sigtramp_frame_cache (struct frame_info *next_frame,
+sparc32_sol2_sigtramp_frame_cache (struct frame_info *this_frame,
void **this_cache)
{
struct sparc_frame_cache *cache;
if (*this_cache)
return *this_cache;
- cache = sparc_frame_cache (next_frame, this_cache);
+ cache = sparc_frame_cache (this_frame, this_cache);
gdb_assert (cache == *this_cache);
- cache->saved_regs = trad_frame_alloc_saved_regs (next_frame);
+ cache->saved_regs = trad_frame_alloc_saved_regs (this_frame);
/* The third argument is a pointer to an instance of `ucontext_t',
which has a member `uc_mcontext' that contains the saved
registers. */
regnum = (cache->frameless_p ? SPARC_O2_REGNUM : SPARC_I2_REGNUM);
- mcontext_addr = frame_unwind_register_unsigned (next_frame, regnum) + 40;
+ mcontext_addr = get_frame_register_unsigned (this_frame, regnum) + 40;
cache->saved_regs[SPARC32_PSR_REGNUM].addr = mcontext_addr + 0 * 4;
cache->saved_regs[SPARC32_PC_REGNUM].addr = mcontext_addr + 1 * 4;
regnum <= SPARC_O7_REGNUM; regnum++, addr += 4)
cache->saved_regs[regnum].addr = addr;
- if (get_frame_memory_unsigned (next_frame, mcontext_addr + 19 * 4, 4))
+ if (get_frame_memory_unsigned (this_frame, mcontext_addr + 19 * 4, 4))
{
/* The register windows haven't been flushed. */
for (regnum = SPARC_L0_REGNUM; regnum <= SPARC_I7_REGNUM; regnum++)
else
{
addr = cache->saved_regs[SPARC_SP_REGNUM].addr;
- addr = get_frame_memory_unsigned (next_frame, addr, 4);
+ addr = get_frame_memory_unsigned (this_frame, addr, 4);
for (regnum = SPARC_L0_REGNUM;
regnum <= SPARC_I7_REGNUM; regnum++, addr += 4)
cache->saved_regs[regnum].addr = addr;
}
static void
-sparc32_sol2_sigtramp_frame_this_id (struct frame_info *next_frame,
+sparc32_sol2_sigtramp_frame_this_id (struct frame_info *this_frame,
void **this_cache,
struct frame_id *this_id)
{
struct sparc_frame_cache *cache =
- sparc32_sol2_sigtramp_frame_cache (next_frame, this_cache);
+ sparc32_sol2_sigtramp_frame_cache (this_frame, this_cache);
(*this_id) = frame_id_build (cache->base, cache->pc);
}
-static void
-sparc32_sol2_sigtramp_frame_prev_register (struct frame_info *next_frame,
+static struct value *
+sparc32_sol2_sigtramp_frame_prev_register (struct frame_info *this_frame,
void **this_cache,
- int regnum, int *optimizedp,
- enum lval_type *lvalp,
- CORE_ADDR *addrp,
- int *realnump, void *valuep)
+ int regnum)
{
struct sparc_frame_cache *cache =
- sparc32_sol2_sigtramp_frame_cache (next_frame, this_cache);
+ sparc32_sol2_sigtramp_frame_cache (this_frame, this_cache);
+
+ return trad_frame_get_prev_register (this_frame, cache->saved_regs, regnum);
+}
+
+static int
+sparc32_sol2_sigtramp_frame_sniffer (const struct frame_unwind *self,
+ struct frame_info *this_frame,
+ void **this_cache)
+{
+ CORE_ADDR pc = get_frame_pc (this_frame);
+ char *name;
- trad_frame_get_prev_register (next_frame, cache->saved_regs, regnum,
- optimizedp, lvalp, addrp, realnump, valuep);
+ find_pc_partial_function (pc, &name, NULL, NULL);
+ if (sparc_sol2_pc_in_sigtramp (pc, name))
+ return 1;
+
+ return 0;
}
static const struct frame_unwind sparc32_sol2_sigtramp_frame_unwind =
{
SIGTRAMP_FRAME,
+ default_frame_unwind_stop_reason,
sparc32_sol2_sigtramp_frame_this_id,
- sparc32_sol2_sigtramp_frame_prev_register
+ sparc32_sol2_sigtramp_frame_prev_register,
+ NULL,
+ sparc32_sol2_sigtramp_frame_sniffer
};
-static const struct frame_unwind *
-sparc32_sol2_sigtramp_frame_sniffer (struct frame_info *next_frame)
-{
- CORE_ADDR pc = frame_pc_unwind (next_frame);
- char *name;
+/* Unglobalize NAME. */
- find_pc_partial_function (pc, &name, NULL, NULL);
- if (sparc_sol2_pc_in_sigtramp (pc, name))
- return &sparc32_sol2_sigtramp_frame_unwind;
+char *
+sparc_sol2_static_transform_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;
+ }
- return NULL;
+ return name;
}
\f
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ /* The Sun compilers (Sun ONE Studio, Forte Developer, Sun WorkShop, SunPRO)
+ compiler puts out 0 instead of the address in N_SO stabs. Starting with
+ SunPRO 3.0, the compiler does this for N_FUN stabs too. */
+ set_gdbarch_sofun_address_maybe_missing (gdbarch, 1);
+
+ /* The Sun compilers also do "globalization"; see the comment in
+ sparc_sol2_static_transform_name for more information. */
+ set_gdbarch_static_transform_name
+ (gdbarch, sparc_sol2_static_transform_name);
+
/* Solaris has SVR4-style shared libraries... */
set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
+ set_gdbarch_skip_solib_resolver (gdbarch, sol2_skip_solib_resolver);
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
/* Solaris has kernel-assisted single-stepping support. */
set_gdbarch_software_single_step (gdbarch, NULL);
- frame_unwind_append_sniffer (gdbarch, sparc32_sol2_sigtramp_frame_sniffer);
+ frame_unwind_append_unwinder (gdbarch, &sparc32_sol2_sigtramp_frame_unwind);
+
+ /* How to print LWP PTIDs from core files. */
+ set_gdbarch_core_pid_to_str (gdbarch, sol2_core_pid_to_str);
}
\f
projects / deliverable / binutils-gdb.git / blobdiff