/* Target-dependent code for FreeBSD/amd64.
- Copyright (C) 2003-2016 Free Software Foundation, Inc.
+ Copyright (C) 2003-2019 Free Software Foundation, Inc.
This file is part of GDB.
#include "osabi.h"
#include "regset.h"
#include "i386-fbsd-tdep.h"
-#include "x86-xstate.h"
+#include "gdbsupport/x86-xstate.h"
#include "amd64-tdep.h"
-#include "bsd-uthread.h"
#include "fbsd-tdep.h"
#include "solib-svr4.h"
-1 /* %gs */
};
-/* From /usr/src/lib/libc/amd64/gen/_setjmp.S. */
-static int amd64fbsd_jmp_buf_reg_offset[] =
-{
- -1, /* %rax */
- 1 * 8, /* %rbx */
- -1, /* %rcx */
- -1, /* %rdx */
- -1, /* %rsi */
- -1, /* %rdi */
- 3 * 8, /* %rbp */
- 2 * 8, /* %rsp */
- -1, /* %r8 ... */
- -1,
- -1,
- -1, /* ... %r11 */
- 4 * 8, /* %r12 ... */
- 5 * 8,
- 6 * 8,
- 7 * 8, /* ... %r15 */
- 0 * 8 /* %rip */
-};
-
/* Implement the core_read_description gdbarch method. */
static const struct target_desc *
struct target_ops *target,
bfd *abfd)
{
- return amd64_target_description (i386fbsd_core_read_xcr0 (abfd));
+ return amd64_target_description (i386fbsd_core_read_xcr0 (abfd), true);
}
/* Similar to amd64_supply_fpregset, but use XSAVE extended state. */
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- cb (".reg", tdep->sizeof_gregset, &i386_gregset, NULL, cb_data);
- cb (".reg2", tdep->sizeof_fpregset, &amd64_fpregset, NULL, cb_data);
- cb (".reg-xstate", X86_XSTATE_SIZE(tdep->xcr0),
+ cb (".reg", tdep->sizeof_gregset, tdep->sizeof_gregset, &i386_gregset, NULL,
+ cb_data);
+ cb (".reg2", tdep->sizeof_fpregset, tdep->sizeof_fpregset, &amd64_fpregset,
+ NULL, cb_data);
+ cb (".reg-xstate", X86_XSTATE_SIZE (tdep->xcr0), X86_XSTATE_SIZE (tdep->xcr0),
&amd64fbsd_xstateregset, "XSAVE extended state", cb_data);
}
-static void
-amd64fbsd_supply_uthread (struct regcache *regcache,
- int regnum, CORE_ADDR addr)
-{
- gdb_byte buf[8];
- int i;
-
- gdb_assert (regnum >= -1);
-
- for (i = 0; i < ARRAY_SIZE (amd64fbsd_jmp_buf_reg_offset); i++)
- {
- if (amd64fbsd_jmp_buf_reg_offset[i] != -1
- && (regnum == -1 || regnum == i))
- {
- read_memory (addr + amd64fbsd_jmp_buf_reg_offset[i], buf, 8);
- regcache_raw_supply (regcache, i, buf);
- }
- }
-}
+/* Implement the get_thread_local_address gdbarch method. */
-static void
-amd64fbsd_collect_uthread (const struct regcache *regcache,
- int regnum, CORE_ADDR addr)
+static CORE_ADDR
+amd64fbsd_get_thread_local_address (struct gdbarch *gdbarch, ptid_t ptid,
+ CORE_ADDR lm_addr, CORE_ADDR offset)
{
- gdb_byte buf[8];
- int i;
-
- gdb_assert (regnum >= -1);
-
- for (i = 0; i < ARRAY_SIZE (amd64fbsd_jmp_buf_reg_offset); i++)
- {
- if (amd64fbsd_jmp_buf_reg_offset[i] != -1
- && (regnum == -1 || regnum == i))
- {
- regcache_raw_collect (regcache, i, buf);
- write_memory (addr + amd64fbsd_jmp_buf_reg_offset[i], buf, 8);
- }
- }
+ struct regcache *regcache;
+
+ regcache = get_thread_arch_regcache (ptid, gdbarch);
+
+ target_fetch_registers (regcache, AMD64_FSBASE_REGNUM);
+
+ ULONGEST fsbase;
+ if (regcache->cooked_read (AMD64_FSBASE_REGNUM, &fsbase) != REG_VALID)
+ error (_("Unable to fetch %%fsbase"));
+
+ CORE_ADDR dtv_addr = fsbase + gdbarch_ptr_bit (gdbarch) / 8;
+ return fbsd_get_thread_local_address (gdbarch, dtv_addr, lm_addr, offset);
}
static void
tdep->gregset_num_regs = ARRAY_SIZE (amd64fbsd_r_reg_offset);
tdep->sizeof_gregset = 22 * 8;
- amd64_init_abi (info, gdbarch);
+ amd64_init_abi (info, gdbarch,
+ amd64_target_description (X86_XSTATE_SSE_MASK, true));
tdep->sigtramp_p = amd64fbsd_sigtramp_p;
tdep->sigtramp_start = amd64fbsd_sigtramp_start_addr;
set_gdbarch_core_read_description (gdbarch,
amd64fbsd_core_read_description);
- /* FreeBSD provides a user-level threads implementation. */
- bsd_uthread_set_supply_uthread (gdbarch, amd64fbsd_supply_uthread);
- bsd_uthread_set_collect_uthread (gdbarch, amd64fbsd_collect_uthread);
-
/* FreeBSD uses SVR4-style shared libraries. */
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_lp64_fetch_link_map_offsets);
-}
-\f
-/* Provide a prototype to silence -Wmissing-prototypes. */
-void _initialize_amd64fbsd_tdep (void);
+ set_gdbarch_fetch_tls_load_module_address (gdbarch,
+ svr4_fetch_objfile_link_map);
+ set_gdbarch_get_thread_local_address (gdbarch,
+ amd64fbsd_get_thread_local_address);
+}
void
_initialize_amd64fbsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
- GDB_OSABI_FREEBSD_ELF, amd64fbsd_init_abi);
+ GDB_OSABI_FREEBSD, amd64fbsd_init_abi);
}