Mention the NetBSD support in "info proc" documentation

[deliverable/binutils-gdb.git] / gdb / i386-windows-tdep.c

diff --git a/gdb/i386-windows-tdep.c b/gdb/i386-windows-tdep.c
index a71ceda781f84954f3bb0cfa993d99c280b1ebf4..4824a9e5528d6c7f47b72817d2a09db4b2076f07 100644 (file)
--- a/gdb/i386-windows-tdep.c
+++ b/gdb/i386-windows-tdep.c
@@ -200,13 +200,43 @@ i386_windows_auto_wide_charset (void)
   return "UTF-16";
 }
 
+/* Implement the "push_dummy_call" gdbarch method.  */
+
+static CORE_ADDR
+i386_windows_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
+                             struct regcache *regcache, CORE_ADDR bp_addr,
+                             int nargs, struct value **args, CORE_ADDR sp,
+                             function_call_return_method return_method,
+                             CORE_ADDR struct_addr)
+{
+  /* For non-static member functions of 32bit Windows programs, the thiscall
+     calling convention is used, so the 'this' pointer is passed in ECX.  */
+  bool thiscall = false;
+
+  struct type *type = check_typedef (value_type (function));
+  if (TYPE_CODE (type) == TYPE_CODE_PTR)
+    type = check_typedef (TYPE_TARGET_TYPE (type));
+
+  /* read_subroutine_type sets for non-static member functions the
+     artificial flag of the first parameter ('this' pointer).  */
+  if (TYPE_CODE (type) == TYPE_CODE_METHOD
+      && TYPE_NFIELDS (type) > 0
+      && TYPE_FIELD_ARTIFICIAL (type, 0)
+      && TYPE_CODE (TYPE_FIELD_TYPE (type, 0)) == TYPE_CODE_PTR)
+    thiscall = 1;
+
+  return i386_thiscall_push_dummy_call (gdbarch, function, regcache, bp_addr,
+                                       nargs, args, sp, return_method,
+                                       struct_addr, thiscall);
+}
+
+/* Common parts for gdbarch initialization for Windows and Cygwin on i386.  */
+
 static void
-i386_windows_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+i386_windows_init_abi_common (struct gdbarch_info info, struct gdbarch *gdbarch)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 
-  windows_init_abi (info, gdbarch);
-
   set_gdbarch_skip_trampoline_code (gdbarch, i386_windows_skip_trampoline_code);
 
   set_gdbarch_skip_main_prologue (gdbarch, i386_skip_main_prologue);
@@ -227,15 +257,38 @@ i386_windows_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   set_gdbarch_auto_wide_charset (gdbarch, i386_windows_auto_wide_charset);
 }
 
+/* gdbarch initialization for Windows on i386.  */
+
+static void
+i386_windows_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+  i386_windows_init_abi_common (info, gdbarch);
+  windows_init_abi (info, gdbarch);
+
+  set_gdbarch_push_dummy_call (gdbarch, i386_windows_push_dummy_call);
+}
+
+/* gdbarch initialization for Cygwin on i386.  */
+
+static void
+i386_cygwin_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+  i386_windows_init_abi_common (info, gdbarch);
+  cygwin_init_abi (info, gdbarch);
+}
+
 static gdb_osabi
 i386_windows_osabi_sniffer (bfd *abfd)
 {
   const char *target_name = bfd_get_target (abfd);
 
-  if (strcmp (target_name, "pei-i386") == 0)
-    return GDB_OSABI_WINDOWS;
+  if (!streq (target_name, "pei-i386"))
+    return GDB_OSABI_UNKNOWN;
 
-  return GDB_OSABI_UNKNOWN;
+  if (is_linked_with_cygwin_dll (abfd))
+    return GDB_OSABI_CYGWIN;
+
+  return GDB_OSABI_WINDOWS;
 }
 
 static enum gdb_osabi
@@ -267,9 +320,8 @@ _initialize_i386_windows_tdep ()
   gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour,
                                   i386_cygwin_core_osabi_sniffer);
 
-  /* The Windows and Cygwin OS ABIs are currently equivalent.  */
   gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_WINDOWS,
                           i386_windows_init_abi);
   gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_CYGWIN,
-                          i386_windows_init_abi);
+                         i386_cygwin_init_abi);
 }