/* Target-dependent code for Solaris x86.
- Copyright 2002, 2003 Free Software Foundation, Inc.
+
+ Copyright (C) 2002-2020 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 "value.h"
#include "osabi.h"
+#include "sol2-tdep.h"
#include "i386-tdep.h"
+#include "solib-svr4.h"
/* From <ia32/sys/reg.h>. */
static int i386_sol2_gregset_reg_offset[] =
0 * 4 /* %gs */
};
+/* Return whether THIS_FRAME corresponds to a Solaris sigtramp
+ routine. */
+
static int
-i386_sol2_pc_in_sigtramp (CORE_ADDR pc, char *name)
+i386_sol2_sigtramp_p (struct frame_info *this_frame)
+{
+ CORE_ADDR pc = get_frame_pc (this_frame);
+ const char *name;
+
+ find_pc_partial_function (pc, &name, NULL, NULL);
+ return (name && (strcmp ("sigacthandler", name) == 0
+ || strcmp (name, "ucbsigvechandler") == 0
+ || strcmp (name, "__sighndlr") == 0));
+}
+
+/* Solaris doesn't have a `struct sigcontext', but it does have a
+ `mcontext_t' that contains the saved set of machine registers. */
+
+static CORE_ADDR
+i386_sol2_mcontext_addr (struct frame_info *this_frame)
+{
+ CORE_ADDR sp, ucontext_addr;
+
+ sp = get_frame_register_unsigned (this_frame, I386_ESP_REGNUM);
+ ucontext_addr = get_frame_memory_unsigned (this_frame, sp + 8, 4);
+
+ return ucontext_addr + 36;
+}
+
+/* SunPRO encodes the static variables. This is not related to C++
+ mangling, it is done for C too. */
+
+static const char *
+i386_sol2_static_transform_name (const char *name)
{
- /* Signal handler frames under Solaris 2 are recognized by a return
- address of 0xffffffff. */
- return (pc == 0xffffffff);
+ if (name[0] == '.')
+ {
+ const char *p;
+
+ /* For file-local statics there will be a period, a bunch of
+ junk (the contents of which match a string given in the
+ N_OPT), a period and the name. For function-local statics
+ there will be a bunch of junk (which seems to change the
+ second character from 'A' to 'B'), a period, the name of the
+ function, and the name. So just skip everything before the
+ last period. */
+ p = strrchr (name, '.');
+ if (p != NULL)
+ name = p + 1;
+ }
+ return name;
}
/* Solaris 2. */
/* Solaris is SVR4-based. */
i386_svr4_init_abi (info, gdbarch);
+ /* The SunPRO compiler puts out 0 instead of the address in N_SO symbols,
+ and for SunPRO 3.0, N_FUN symbols too. */
+ set_gdbarch_sofun_address_maybe_missing (gdbarch, 1);
+
+ /* Handle SunPRO encoding of static symbols. */
+ set_gdbarch_static_transform_name (gdbarch, i386_sol2_static_transform_name);
+
/* Solaris reserves space for its FPU emulator in `fpregset_t'.
There is also some space reserved for the registers of a Weitek
math coprocessor. */
tdep->sizeof_fpregset = 380;
/* Signal trampolines are slightly different from SVR4. */
- set_gdbarch_pc_in_sigtramp (gdbarch, i386_sol2_pc_in_sigtramp);
+ tdep->sigtramp_p = i386_sol2_sigtramp_p;
+ tdep->sigcontext_addr = i386_sol2_mcontext_addr;
+ tdep->sc_reg_offset = tdep->gregset_reg_offset;
+ tdep->sc_num_regs = tdep->gregset_num_regs;
+
+ /* Solaris has SVR4-style shared libraries. */
+ set_gdbarch_skip_solib_resolver (gdbarch, sol2_skip_solib_resolver);
+ set_solib_svr4_fetch_link_map_offsets
+ (gdbarch, svr4_ilp32_fetch_link_map_offsets);
+
+ /* How to print LWP PTIDs from core files. */
+ set_gdbarch_core_pid_to_str (gdbarch, sol2_core_pid_to_str);
}
\f
return GDB_OSABI_UNKNOWN;
}
-/* Provide a prototype to silence -Wmissing-prototypes. */
-void _initialize_i386_sol2_tdep (void);
-
+void _initialize_i386_sol2_tdep ();
void
-_initialize_i386_sol2_tdep (void)
+_initialize_i386_sol2_tdep ()
{
/* Register an ELF OS ABI sniffer for Solaris 2 binaries. */
gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour,
projects / deliverable / binutils-gdb.git / blobdiff