/* Target-dependent code for Motorola 68000 BSD's.
- Copyright (C) 2004-2016 Free Software Foundation, Inc.
+ Copyright (C) 2004-2019 Free Software Foundation, Inc.
This file is part of GDB.
struct regcache *regcache,
int regnum, const void *fpregs, size_t len)
{
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch *gdbarch = regcache->arch ();
const gdb_byte *regs = (const gdb_byte *) fpregs;
int i;
for (i = M68K_FP0_REGNUM; i <= M68K_PC_REGNUM; i++)
{
if (regnum == i || regnum == -1)
- regcache_raw_supply (regcache, i,
- regs + m68kbsd_fpreg_offset (gdbarch, i));
+ regcache->raw_supply (i, regs + m68kbsd_fpreg_offset (gdbarch, i));
}
}
for (i = M68K_D0_REGNUM; i <= M68K_PC_REGNUM; i++)
{
if (regnum == i || regnum == -1)
- regcache_raw_supply (regcache, i, regs + i * 4);
+ regcache->raw_supply (i, regs + i * 4);
}
if (len >= M68KBSD_SIZEOF_GREGS + M68KBSD_SIZEOF_FPREGS)
void *cb_data,
const struct regcache *regcache)
{
- cb (".reg", M68KBSD_SIZEOF_GREGS, &m68kbsd_gregset, NULL, cb_data);
- cb (".reg2", M68KBSD_SIZEOF_FPREGS, &m68kbsd_fpregset, NULL, cb_data);
+ cb (".reg", M68KBSD_SIZEOF_GREGS, M68KBSD_SIZEOF_GREGS, &m68kbsd_gregset,
+ NULL, cb_data);
+ cb (".reg2", M68KBSD_SIZEOF_FPREGS, M68KBSD_SIZEOF_FPREGS, &m68kbsd_fpregset,
+ NULL, cb_data);
}
\f
-/* Signal trampolines. */
-
-static void
-m68kobsd_sigtramp_cache_init (const struct tramp_frame *self,
- struct frame_info *this_frame,
- struct trad_frame_cache *this_cache,
- CORE_ADDR func)
-{
- CORE_ADDR addr, base, pc;
- int regnum;
-
- base = get_frame_register_unsigned (this_frame, M68K_SP_REGNUM);
-
- /* The 'addql #4,%sp' instruction at offset 8 adjusts the stack
- pointer. Adjust the frame base accordingly. */
- pc = get_frame_register_unsigned (this_frame, M68K_PC_REGNUM);
- if ((pc - func) > 8)
- base -= 4;
-
- /* Get frame pointer, stack pointer, program counter and processor
- state from `struct sigcontext'. */
- addr = get_frame_memory_unsigned (this_frame, base + 8, 4);
- trad_frame_set_reg_addr (this_cache, M68K_FP_REGNUM, addr + 8);
- trad_frame_set_reg_addr (this_cache, M68K_SP_REGNUM, addr + 12);
- trad_frame_set_reg_addr (this_cache, M68K_PC_REGNUM, addr + 20);
- trad_frame_set_reg_addr (this_cache, M68K_PS_REGNUM, addr + 24);
-
- /* The sc_ap member of `struct sigcontext' points to additional
- hardware state. Here we find the missing registers. */
- addr = get_frame_memory_unsigned (this_frame, addr + 16, 4) + 4;
- for (regnum = M68K_D0_REGNUM; regnum < M68K_FP_REGNUM; regnum++, addr += 4)
- trad_frame_set_reg_addr (this_cache, regnum, addr);
-
- /* Construct the frame ID using the function start. */
- trad_frame_set_id (this_cache, frame_id_build (base, func));
-}
-
-static const struct tramp_frame m68kobsd_sigtramp = {
- SIGTRAMP_FRAME,
- 2,
- {
- { 0x206f, -1 }, { 0x000c, -1}, /* moveal %sp@(12),%a0 */
- { 0x4e90, -1 }, /* jsr %a0@ */
- { 0x588f, -1 }, /* addql #4,%sp */
- { 0x4e41, -1 }, /* trap #1 */
- { 0x2f40, -1 }, { 0x0004, -1 }, /* moveal %d0,%sp@(4) */
- { 0x7001, -1 }, /* moveq #SYS_exit,%d0 */
- { 0x4e40, -1 }, /* trap #0 */
- { TRAMP_SENTINEL_INSN, -1 }
- },
- m68kobsd_sigtramp_cache_init
-};
-\f
-
static void
m68kbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
set_gdbarch_iterate_over_regset_sections
(gdbarch, m68kbsd_iterate_over_regset_sections);
-}
-
-/* OpenBSD and NetBSD a.out. */
-
-static void
-m68kbsd_aout_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
-{
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
-
- m68kbsd_init_abi (info, gdbarch);
-
- tdep->struct_return = reg_struct_return;
-
- tramp_frame_prepend_unwinder (gdbarch, &m68kobsd_sigtramp);
-}
-
-/* NetBSD ELF. */
-
-static void
-m68kbsd_elf_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
-{
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
-
- m68kbsd_init_abi (info, gdbarch);
/* NetBSD ELF uses the SVR4 ABI. */
m68k_svr4_init_abi (info, gdbarch);
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
}
-\f
-
-static enum gdb_osabi
-m68kbsd_aout_osabi_sniffer (bfd *abfd)
-{
- if (strcmp (bfd_get_target (abfd), "a.out-m68k-netbsd") == 0
- || strcmp (bfd_get_target (abfd), "a.out-m68k4k-netbsd") == 0)
- return GDB_OSABI_NETBSD_AOUT;
-
- return GDB_OSABI_UNKNOWN;
-}
-
-static enum gdb_osabi
-m68kbsd_core_osabi_sniffer (bfd *abfd)
-{
- if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
- return GDB_OSABI_NETBSD_AOUT;
-
- return GDB_OSABI_UNKNOWN;
-}
-\f
-
-/* Provide a prototype to silence -Wmissing-prototypes. */
-void _initialize_m68kbsd_tdep (void);
void
_initialize_m68kbsd_tdep (void)
{
- gdbarch_register_osabi_sniffer (bfd_arch_m68k, bfd_target_aout_flavour,
- m68kbsd_aout_osabi_sniffer);
-
- /* BFD doesn't set a flavour for NetBSD style a.out core files. */
- gdbarch_register_osabi_sniffer (bfd_arch_m68k, bfd_target_unknown_flavour,
- m68kbsd_core_osabi_sniffer);
-
- gdbarch_register_osabi (bfd_arch_m68k, 0, GDB_OSABI_NETBSD_AOUT,
- m68kbsd_aout_init_abi);
- gdbarch_register_osabi (bfd_arch_m68k, 0, GDB_OSABI_NETBSD_ELF,
- m68kbsd_elf_init_abi);
+ gdbarch_register_osabi (bfd_arch_m68k, 0, GDB_OSABI_NETBSD,
+ m68kbsd_init_abi);
}
projects / deliverable / binutils-gdb.git / blobdiff