/* Native-dependent code for AMD64 BSD's.
- Copyright (C) 2003-2020 Free Software Foundation, Inc.
+ Copyright (C) 2003-2022 Free Software Foundation, Inc.
This file is part of GDB.
#include "amd64-nat.h"
#include "x86-bsd-nat.h"
#include "inf-ptrace.h"
+#include "amd64-bsd-nat.h"
\f
+static PTRACE_TYPE_RET
+gdb_ptrace (PTRACE_TYPE_ARG1 request, ptid_t ptid, PTRACE_TYPE_ARG3 addr,
+ PTRACE_TYPE_ARG4 data)
+{
+#ifdef __NetBSD__
+ gdb_assert (data == 0);
+ /* Support for NetBSD threads: unlike other ptrace implementations in this
+ file, NetBSD requires that we pass both the pid and lwp. */
+ return ptrace (request, ptid.pid (), addr, ptid.lwp ());
+#else
+ pid_t pid = get_ptrace_pid (ptid);
+ return ptrace (request, pid, addr, data);
+#endif
+}
+
/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
for all registers (including the floating-point registers). */
amd64bsd_fetch_inferior_registers (struct regcache *regcache, int regnum)
{
struct gdbarch *gdbarch = regcache->arch ();
- pid_t pid = get_ptrace_pid (regcache->ptid ());
-#if defined(PT_GETFSBASE) || defined(PT_GETGSBASE)
- const struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
-#endif
+ ptid_t ptid = regcache->ptid ();
if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, regnum))
{
struct reg regs;
- if (ptrace (PT_GETREGS, pid, (PTRACE_TYPE_ARG3) ®s, 0) == -1)
+ if (gdb_ptrace (PT_GETREGS, ptid, (PTRACE_TYPE_ARG3) ®s, 0) == -1)
perror_with_name (_("Couldn't get registers"));
amd64_supply_native_gregset (regcache, ®s, -1);
return;
}
-#ifdef PT_GETFSBASE
- if (regnum == -1 || regnum == tdep->fsbase_regnum)
- {
- register_t base;
-
- if (ptrace (PT_GETFSBASE, pid, (PTRACE_TYPE_ARG3) &base, 0) == -1)
- perror_with_name (_("Couldn't get segment register fs_base"));
-
- regcache->raw_supply (tdep->fsbase_regnum, &base);
- if (regnum != -1)
- return;
- }
-#endif
-#ifdef PT_GETGSBASE
- if (regnum == -1 || regnum == tdep->fsbase_regnum + 1)
- {
- register_t base;
-
- if (ptrace (PT_GETGSBASE, pid, (PTRACE_TYPE_ARG3) &base, 0) == -1)
- perror_with_name (_("Couldn't get segment register gs_base"));
-
- regcache->raw_supply (tdep->fsbase_regnum + 1, &base);
- if (regnum != -1)
- return;
- }
-#endif
-
if (regnum == -1 || !amd64_native_gregset_supplies_p (gdbarch, regnum))
{
struct fpreg fpregs;
-#ifdef PT_GETXSTATE_INFO
- void *xstateregs;
-
- if (x86bsd_xsave_len != 0)
- {
- xstateregs = alloca (x86bsd_xsave_len);
- if (ptrace (PT_GETXSTATE, pid, (PTRACE_TYPE_ARG3) xstateregs, 0)
- == -1)
- perror_with_name (_("Couldn't get extended state status"));
-
- amd64_supply_xsave (regcache, -1, xstateregs);
- return;
- }
-#endif
- if (ptrace (PT_GETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+ if (gdb_ptrace (PT_GETFPREGS, ptid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
perror_with_name (_("Couldn't get floating point status"));
amd64_supply_fxsave (regcache, -1, &fpregs);
amd64bsd_store_inferior_registers (struct regcache *regcache, int regnum)
{
struct gdbarch *gdbarch = regcache->arch ();
- pid_t pid = get_ptrace_pid (regcache->ptid ());
-#if defined(PT_SETFSBASE) || defined(PT_SETGSBASE)
- const struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
-#endif
+ ptid_t ptid = regcache->ptid ();
if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, regnum))
{
struct reg regs;
- if (ptrace (PT_GETREGS, pid, (PTRACE_TYPE_ARG3) ®s, 0) == -1)
- perror_with_name (_("Couldn't get registers"));
+ if (gdb_ptrace (PT_GETREGS, ptid, (PTRACE_TYPE_ARG3) ®s, 0) == -1)
+ perror_with_name (_("Couldn't get registers"));
amd64_collect_native_gregset (regcache, ®s, regnum);
- if (ptrace (PT_SETREGS, pid, (PTRACE_TYPE_ARG3) ®s, 0) == -1)
- perror_with_name (_("Couldn't write registers"));
+ if (gdb_ptrace (PT_SETREGS, ptid, (PTRACE_TYPE_ARG3) ®s, 0) == -1)
+ perror_with_name (_("Couldn't write registers"));
if (regnum != -1)
return;
}
-#ifdef PT_SETFSBASE
- if (regnum == -1 || regnum == tdep->fsbase_regnum)
- {
- register_t base;
-
- /* Clear the full base value to support 32-bit targets. */
- base = 0;
- regcache->raw_collect (tdep->fsbase_regnum, &base);
-
- if (ptrace (PT_SETFSBASE, pid, (PTRACE_TYPE_ARG3) &base, 0) == -1)
- perror_with_name (_("Couldn't write segment register fs_base"));
- if (regnum != -1)
- return;
- }
-#endif
-#ifdef PT_SETGSBASE
- if (regnum == -1 || regnum == tdep->fsbase_regnum + 1)
- {
- register_t base;
-
- /* Clear the full base value to support 32-bit targets. */
- base = 0;
- regcache->raw_collect (tdep->fsbase_regnum + 1, &base);
-
- if (ptrace (PT_SETGSBASE, pid, (PTRACE_TYPE_ARG3) &base, 0) == -1)
- perror_with_name (_("Couldn't write segment register gs_base"));
- if (regnum != -1)
- return;
- }
-#endif
-
if (regnum == -1 || !amd64_native_gregset_supplies_p (gdbarch, regnum))
{
struct fpreg fpregs;
-#ifdef PT_GETXSTATE_INFO
- void *xstateregs;
-
- if (x86bsd_xsave_len != 0)
- {
- xstateregs = alloca (x86bsd_xsave_len);
- if (ptrace (PT_GETXSTATE, pid, (PTRACE_TYPE_ARG3) xstateregs, 0)
- == -1)
- perror_with_name (_("Couldn't get extended state status"));
-
- amd64_collect_xsave (regcache, regnum, xstateregs, 0);
-
- if (ptrace (PT_SETXSTATE, pid, (PTRACE_TYPE_ARG3) xstateregs,
- x86bsd_xsave_len) == -1)
- perror_with_name (_("Couldn't write extended state status"));
- return;
- }
-#endif
- if (ptrace (PT_GETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+ if (gdb_ptrace (PT_GETFPREGS, ptid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
perror_with_name (_("Couldn't get floating point status"));
amd64_collect_fxsave (regcache, regnum, &fpregs);
- if (ptrace (PT_SETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+ if (gdb_ptrace (PT_SETFPREGS, ptid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
perror_with_name (_("Couldn't write floating point status"));
}
}
projects / binutils-gdb.git / blobdiff