/* Target-dependent code for Solaris x86.
- Copyright 2002 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"
-static int
-i386_sol2_pc_in_sigtramp (CORE_ADDR pc, char *name)
+/* From <ia32/sys/reg.h>. */
+static int i386_sol2_gregset_reg_offset[] =
+{
+ 11 * 4, /* %eax */
+ 10 * 4, /* %ecx */
+ 9 * 4, /* %edx */
+ 8 * 4, /* %ebx */
+ 17 * 4, /* %esp */
+ 6 * 4, /* %ebp */
+ 5 * 4, /* %esi */
+ 4 * 4, /* %edi */
+ 14 * 4, /* %eip */
+ 16 * 4, /* %eflags */
+ 15 * 4, /* %cs */
+ 18 * 4, /* %ss */
+ 3 * 4, /* %ds */
+ 2 * 4, /* %es */
+ 1 * 4, /* %fs */
+ 0 * 4 /* %gs */
+};
+
+/* 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)
{
- /* Signal handler frames under Solaris 2 are recognized by a return
- address of 0xffffffff. */
- return (pc == 0xffffffff);
+ 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;
}
/* Solaris 2. */
/* Solaris is SVR4-based. */
i386_svr4_init_abi (info, gdbarch);
- /* Signal trampolines are different from SVR4, in fact they're
- rather similar to BSD. */
- set_gdbarch_pc_in_sigtramp (gdbarch, i386_sol2_pc_in_sigtramp);
- tdep->sigtramp_saved_pc = i386bsd_sigtramp_saved_pc;
- tdep->sc_pc_offset = 36 + 14 * 4;
-
- /* Assume that the prototype flag can be trusted. */
- set_gdbarch_coerce_float_to_double (gdbarch,
- standard_coerce_float_to_double);
+ sol2_init_abi (info, gdbarch);
+
+ /* 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->gregset_reg_offset = i386_sol2_gregset_reg_offset;
+ tdep->gregset_num_regs = ARRAY_SIZE (i386_sol2_gregset_reg_offset);
+ tdep->sizeof_gregset = 19 * 4;
+ tdep->sizeof_fpregset = 380;
+
+ /* Signal trampolines are slightly different from SVR4. */
+ tdep->sigtramp_p = 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_solib_svr4_fetch_link_map_offsets
+ (gdbarch, svr4_ilp32_fetch_link_map_offsets);
}
\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 and ELF OS ABI sniffer for Solaris 2 binaries. */
+ /* Register an ELF OS ABI sniffer for Solaris 2 binaries. */
gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour,
i386_sol2_osabi_sniffer);
- gdbarch_register_osabi (bfd_arch_i386, GDB_OSABI_SOLARIS,
+ gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_SOLARIS,
i386_sol2_init_abi);
}
projects / deliverable / binutils-gdb.git / blobdiff