/* Target-dependent code for FreeBSD/i386.
- Copyright (C) 2003-2016 Free Software Foundation, Inc.
+ Copyright (C) 2003-2018 Free Software Foundation, Inc.
This file is part of GDB.
#include "i386-tdep.h"
#include "i387-tdep.h"
-#include "bsd-uthread.h"
#include "fbsd-tdep.h"
#include "solib-svr4.h"
8 + 16 * 4 /* %gs */
};
-/* From /usr/src/lib/libc/i386/gen/_setjmp.S. */
-static int i386fbsd_jmp_buf_reg_offset[] =
-{
- -1, /* %eax */
- -1, /* %ecx */
- -1, /* %edx */
- 1 * 4, /* %ebx */
- 2 * 4, /* %esp */
- 3 * 4, /* %ebp */
- 4 * 4, /* %esi */
- 5 * 4, /* %edi */
- 0 * 4 /* %eip */
-};
-
/* Get XSAVE extended state xcr0 from core dump. */
uint64_t
{
warning (_("Couldn't read `xcr0' bytes from "
"`.reg-xstate' section in core file."));
- return 0;
+ return X86_XSTATE_SSE_MASK;
}
xcr0 = bfd_get_64 (abfd, contents);
}
}
else
- xcr0 = 0;
+ xcr0 = X86_XSTATE_SSE_MASK;
return xcr0;
}
}
static void
-i386fbsd_supply_uthread (struct regcache *regcache,
- int regnum, CORE_ADDR addr)
-{
- gdb_byte buf[4];
- int i;
-
- gdb_assert (regnum >= -1);
-
- for (i = 0; i < ARRAY_SIZE (i386fbsd_jmp_buf_reg_offset); i++)
- {
- if (i386fbsd_jmp_buf_reg_offset[i] != -1
- && (regnum == -1 || regnum == i))
- {
- read_memory (addr + i386fbsd_jmp_buf_reg_offset[i], buf, 4);
- regcache_raw_supply (regcache, i, buf);
- }
- }
-}
-
-static void
-i386fbsd_collect_uthread (const struct regcache *regcache,
- int regnum, CORE_ADDR addr)
-{
- gdb_byte buf[4];
- int i;
-
- gdb_assert (regnum >= -1);
-
- for (i = 0; i < ARRAY_SIZE (i386fbsd_jmp_buf_reg_offset); i++)
- {
- if (i386fbsd_jmp_buf_reg_offset[i] != -1
- && (regnum == -1 || regnum == i))
- {
- regcache_raw_collect (regcache, i, buf);
- write_memory (addr + i386fbsd_jmp_buf_reg_offset[i], buf, 4);
- }
- }
-}
-
-static void
-i386fbsdaout_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+i386fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
tdep->sc_reg_offset = i386fbsd_sc_reg_offset;
tdep->sc_num_regs = ARRAY_SIZE (i386fbsd_sc_reg_offset);
- /* FreeBSD provides a user-level threads implementation. */
- bsd_uthread_set_supply_uthread (gdbarch, i386fbsd_supply_uthread);
- bsd_uthread_set_collect_uthread (gdbarch, i386fbsd_collect_uthread);
-}
-
-static void
-i386fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
-{
- /* It's almost identical to FreeBSD a.out. */
- i386fbsdaout_init_abi (info, gdbarch);
-
- /* Except that it uses ELF. */
i386_elf_init_abi (info, gdbarch);
- /* FreeBSD ELF uses SVR4-style shared libraries. */
+ /* FreeBSD uses SVR4-style shared libraries. */
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
}
i386fbsd_core_read_description);
}
-\f
-/* Provide a prototype to silence -Wmissing-prototypes. */
-void _initialize_i386fbsd_tdep (void);
-
void
_initialize_i386fbsd_tdep (void)
{
- gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_FREEBSD_AOUT,
- i386fbsdaout_init_abi);
- gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_FREEBSD_ELF,
+ gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_FREEBSD,
i386fbsd4_init_abi);
}