(lookup_global_symbol_from_objfile): Simplify.

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

diff --git a/gdb/i386-linux-tdep.c b/gdb/i386-linux-tdep.c
index b3707f7a7ea2ef2d8b9cfbfb8151cddb83ebd6b8..b45c230e924ea4a1749aad60cf9b63c62690e5d5 100644 (file)
--- a/gdb/i386-linux-tdep.c
+++ b/gdb/i386-linux-tdep.c
@@ -52,28 +52,6 @@
 #include "features/i386/i386-avx-linux.c"
 #include "features/i386/i386-avx512-linux.c"
 
-/* Supported register note sections.  */
-static struct core_regset_section i386_linux_regset_sections[] =
-{
-  { ".reg", 68, "general-purpose" },
-  { ".reg2", 108, "floating-point" },
-  { NULL, 0 }
-};
-
-static struct core_regset_section i386_linux_sse_regset_sections[] =
-{
-  { ".reg", 68, "general-purpose" },
-  { ".reg-xfp", 512, "extended floating-point" },
-  { NULL, 0 }
-};
-
-static struct core_regset_section i386_linux_avx_regset_sections[] =
-{
-  { ".reg", 68, "general-purpose" },
-  { ".reg-xstate", X86_XSTATE_MAX_SIZE, "XSAVE extended state" },
-  { NULL, 0 }
-};
-
 /* Return non-zero, when the register is in the corresponding register
    group.  Put the LINUX_ORIG_EAX register in the system group.  */
 static int
@@ -670,6 +648,58 @@ i386_linux_core_read_description (struct gdbarch *gdbarch,
     return tdesc_i386_mmx_linux;
 }
 
+/* Similar to i386_supply_fpregset, but use XSAVE extended state.  */
+
+static void
+i386_linux_supply_xstateregset (const struct regset *regset,
+                               struct regcache *regcache, int regnum,
+                               const void *xstateregs, size_t len)
+{
+  i387_supply_xsave (regcache, regnum, xstateregs);
+}
+
+/* Similar to i386_collect_fpregset, but use XSAVE extended state.  */
+
+static void
+i386_linux_collect_xstateregset (const struct regset *regset,
+                                const struct regcache *regcache,
+                                int regnum, void *xstateregs, size_t len)
+{
+  i387_collect_xsave (regcache, regnum, xstateregs, 1);
+}
+
+/* Register set definitions.  */
+
+static const struct regset i386_linux_xstateregset =
+  {
+    NULL,
+    i386_linux_supply_xstateregset,
+    i386_linux_collect_xstateregset
+  };
+
+/* Iterate over core file register note sections.  */
+
+static void
+i386_linux_iterate_over_regset_sections (struct gdbarch *gdbarch,
+                                        iterate_over_regset_sections_cb *cb,
+                                        void *cb_data,
+                                        const struct regcache *regcache)
+{
+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
+  cb (".reg", 68, &i386_gregset, NULL, cb_data);
+
+  if (tdep->xcr0 & X86_XSTATE_AVX)
+    /* Use max size for writing, accept any size when reading.  */
+    cb (".reg-xstate", regcache ? X86_XSTATE_MAX_SIZE : 0,
+       &i386_linux_xstateregset, "XSAVE extended state", cb_data);
+  else if (tdep->xcr0 & X86_XSTATE_SSE)
+    cb (".reg-xfp", 512, &i386_fpregset, "extended floating-point",
+       cb_data);
+  else
+    cb (".reg2", 108, &i386_fpregset, NULL, cb_data);
+}
+
 /* Linux kernel shows PC value after the 'int $0x80' instruction even if
    inferior is still inside the syscall.  On next PTRACE_SINGLESTEP it will
    finish the syscall but PC will not change.
@@ -948,15 +978,9 @@ i386_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   set_gdbarch_fetch_tls_load_module_address (gdbarch,
                                              svr4_fetch_objfile_link_map);
 
-  /* Install supported register note sections.  */
-  if (tdesc_find_feature (tdesc, "org.gnu.gdb.i386.avx512")
-      || tdesc_find_feature (tdesc, "org.gnu.gdb.i386.avx"))
-    set_gdbarch_core_regset_sections (gdbarch, i386_linux_avx_regset_sections);
-  else if (tdesc_find_feature (tdesc, "org.gnu.gdb.i386.sse"))
-    set_gdbarch_core_regset_sections (gdbarch, i386_linux_sse_regset_sections);
-  else
-    set_gdbarch_core_regset_sections (gdbarch, i386_linux_regset_sections);
-
+  /* Core file support.  */
+  set_gdbarch_iterate_over_regset_sections
+    (gdbarch, i386_linux_iterate_over_regset_sections);
   set_gdbarch_core_read_description (gdbarch,
                                     i386_linux_core_read_description);
 
@@ -970,7 +994,7 @@ i386_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
                                        displaced_step_at_entry_point);
 
   /* Functions for 'catch syscall'.  */
-  set_xml_syscall_file_name (XML_SYSCALL_FILENAME_I386);
+  set_xml_syscall_file_name (gdbarch, XML_SYSCALL_FILENAME_I386);
   set_gdbarch_get_syscall_number (gdbarch,
                                   i386_linux_get_syscall_number);