Avoid MinGW compilation warning in readline/input.c

[deliverable/binutils-gdb.git] / gdb / i386-linux-nat.c

diff --git a/gdb/i386-linux-nat.c b/gdb/i386-linux-nat.c
index a08b9b85cf49ed980a4cdd9bd78f98bfeffd7242..b08470f3058661807a50594f4fbe210405a6cc24 100644 (file)
--- a/gdb/i386-linux-nat.c
+++ b/gdb/i386-linux-nat.c
@@ -1,6 +1,6 @@
 /* Native-dependent code for GNU/Linux i386.
 
-   Copyright (C) 1999-2014 Free Software Foundation, Inc.
+   Copyright (C) 1999-2017 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -22,7 +22,7 @@
 #include "gdbcore.h"
 #include "regcache.h"
 #include "elf/common.h"
-#include <sys/ptrace.h>
+#include "nat/gdb_ptrace.h"
 #include <sys/uio.h>
 #include "gregset.h"
 #include "gdb_proc_service.h"
@@ -33,7 +33,10 @@
 #include "i386-linux-tdep.h"
 #include "x86-xstate.h"
 
+#include "linux-nat.h"
 #include "x86-linux-nat.h"
+#include "nat/linux-ptrace.h"
+#include "inf-ptrace.h"
 
 /* The register sets used in GNU/Linux ELF core-dumps are identical to
    the register sets in `struct user' that is used for a.out
@@ -57,7 +60,7 @@
   (I386_ST0_REGNUM <= (regno) && (regno) < I386_SSE_NUM_REGS)
 
 #define GETXSTATEREGS_SUPPLIES(regno) \
-  (I386_ST0_REGNUM <= (regno) && (regno) < I386_AVX512_NUM_REGS)
+  (I386_ST0_REGNUM <= (regno) && (regno) < I386_PKEYS_NUM_REGS)
 
 /* Does the current host support the GETREGS request?  */
 int have_ptrace_getregs =
@@ -92,7 +95,7 @@ int have_ptrace_getfpxregs =
 static void
 fetch_register (struct regcache *regcache, int regno)
 {
-  int tid;
+  pid_t tid;
   int val;
 
   gdb_assert (!have_ptrace_getregs);
@@ -102,10 +105,7 @@ fetch_register (struct regcache *regcache, int regno)
       return;
     }
 
-  /* GNU/Linux LWP ID's are process ID's.  */
-  tid = ptid_get_lwp (inferior_ptid);
-  if (tid == 0)
-    tid = ptid_get_pid (inferior_ptid); /* Not a threaded program.  */
+  tid = get_ptrace_pid (regcache_get_ptid (regcache));
 
   errno = 0;
   val = ptrace (PTRACE_PEEKUSER, tid,
@@ -123,17 +123,14 @@ fetch_register (struct regcache *regcache, int regno)
 static void
 store_register (const struct regcache *regcache, int regno)
 {
-  int tid;
+  pid_t tid;
   int val;
 
   gdb_assert (!have_ptrace_getregs);
   if (i386_linux_gregset_reg_offset[regno] == -1)
     return;
 
-  /* GNU/Linux LWP ID's are process ID's.  */
-  tid = ptid_get_lwp (inferior_ptid);
-  if (tid == 0)
-    tid = ptid_get_pid (inferior_ptid); /* Not a threaded program.  */
+  tid = get_ptrace_pid (regcache_get_ptid (regcache));
 
   errno = 0;
   regcache_raw_collect (regcache, regno, &val);
@@ -325,7 +322,7 @@ fetch_xstateregs (struct regcache *regcache, int tid)
   char xstateregs[X86_XSTATE_MAX_SIZE];
   struct iovec iov;
 
-  if (!have_ptrace_getregset)
+  if (have_ptrace_getregset != TRIBOOL_TRUE)
     return 0;
 
   iov.iov_base = xstateregs;
@@ -348,7 +345,7 @@ store_xstateregs (const struct regcache *regcache, int tid, int regno)
   char xstateregs[X86_XSTATE_MAX_SIZE];
   struct iovec iov;
 
-  if (!have_ptrace_getregset)
+  if (have_ptrace_getregset != TRIBOOL_TRUE)
     return 0;
   
   iov.iov_base = xstateregs;
@@ -453,7 +450,7 @@ static void
 i386_linux_fetch_inferior_registers (struct target_ops *ops,
                                     struct regcache *regcache, int regno)
 {
-  int tid;
+  pid_t tid;
 
   /* Use the old method of peeking around in `struct user' if the
      GETREGS request isn't available.  */
@@ -468,10 +465,7 @@ i386_linux_fetch_inferior_registers (struct target_ops *ops,
       return;
     }
 
-  /* GNU/Linux LWP ID's are process ID's.  */
-  tid = ptid_get_lwp (inferior_ptid);
-  if (tid == 0)
-    tid = ptid_get_pid (inferior_ptid); /* Not a threaded program.  */
+  tid = get_ptrace_pid (regcache_get_ptid (regcache));
 
   /* Use the PTRACE_GETFPXREGS request whenever possible, since it
      transfers more registers in one system call, and we'll cache the
@@ -534,7 +528,7 @@ static void
 i386_linux_store_inferior_registers (struct target_ops *ops,
                                     struct regcache *regcache, int regno)
 {
-  int tid;
+  pid_t tid;
 
   /* Use the old method of poking around in `struct user' if the
      SETREGS request isn't available.  */
@@ -549,10 +543,7 @@ i386_linux_store_inferior_registers (struct target_ops *ops,
       return;
     }
 
-  /* GNU/Linux LWP ID's are process ID's.  */
-  tid = ptid_get_lwp (inferior_ptid);
-  if (tid == 0)
-    tid = ptid_get_pid (inferior_ptid); /* Not a threaded program.  */
+  tid = get_ptrace_pid (regcache_get_ptid (regcache));
 
   /* Use the PTRACE_SETFPXREGS requests whenever possible, since it
      transfers more registers in one system call.  But remember that
@@ -601,7 +592,7 @@ i386_linux_store_inferior_registers (struct target_ops *ops,
    storage (or its descriptor).  */
 
 ps_err_e
-ps_get_thread_area (const struct ps_prochandle *ph,
+ps_get_thread_area (struct ps_prochandle *ph,
                    lwpid_t lwpid, int idx, void **base)
 {
   unsigned int base_addr;
@@ -648,8 +639,7 @@ static void
 i386_linux_resume (struct target_ops *ops,
                   ptid_t ptid, int step, enum gdb_signal signal)
 {
-  int pid = ptid_get_pid (ptid);
-
+  int pid = ptid_get_lwp (ptid);
   int request;
 
   if (catch_syscall_enabled () > 0)
@@ -659,7 +649,7 @@ i386_linux_resume (struct target_ops *ops,
 
   if (step)
     {
-      struct regcache *regcache = get_thread_regcache (pid_to_ptid (pid));
+      struct regcache *regcache = get_thread_regcache (ptid);
       struct gdbarch *gdbarch = get_regcache_arch (regcache);
       enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
       ULONGEST pc;