[PATCH V4 3/6] Use linux_get_siginfo_type_with_fields for x86.

[Walfred Tedeschi <walfred.tedeschi@intel.com>]

Use linux_get_siginfo_type_with_fields for adding bound fields on
segmentation fault for i386/amd64 siginfo.

2016-01-15  Walfred Tedeschi  <walfred.tedeschi@intel.com>

gdb/ChangeLog:

	* linux-tdep.h (linux_get_siginfo_type_with_fields): Make extern.
	* linux-tdep.c (linux_get_siginfo_type_with_fields): Make extern.
	* i386-linux-tdep.h (x86_linux_get_siginfo_type): New
	function.
	* amd64-linux-tdep.c (amd64_linux_init_abi_common): Add
	x86_linux_get_siginfo_type for the amd64 abi.
	* i386-linux-tdep.c (x86_linux_get_siginfo_type): New
	Function.
	(i386_linux_init_abi): Add new function at the i386 ABI
	initialization.

---
 gdb/amd64-linux-tdep.c | 2 ++
 gdb/i386-linux-tdep.c  | 8 ++++++++
 gdb/i386-linux-tdep.h  | 3 +++
 gdb/linux-tdep.c       | 2 +-
 gdb/linux-tdep.h       | 4 ++++
 5 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/gdb/amd64-linux-tdep.c b/gdb/amd64-linux-tdep.c
index b948ea7..21bcd99 100644
--- a/gdb/amd64-linux-tdep.c
+++ b/gdb/amd64-linux-tdep.c
@@ -1838,6 +1838,8 @@ amd64_linux_init_abi_common(struct gdbarch_info info, struct gdbarch *gdbarch)
 
   set_gdbarch_process_record (gdbarch, i386_process_record);
   set_gdbarch_process_record_signal (gdbarch, amd64_linux_record_signal);
+
+  set_gdbarch_get_siginfo_type (gdbarch, x86_linux_get_siginfo_type);
 }
 
 static void
diff --git a/gdb/i386-linux-tdep.c b/gdb/i386-linux-tdep.c
index 1e491e7..af39e78 100644
--- a/gdb/i386-linux-tdep.c
+++ b/gdb/i386-linux-tdep.c
@@ -656,6 +656,12 @@ i386_linux_supply_xstateregset (const struct regset *regset,
   i387_supply_xsave (regcache, regnum, xstateregs);
 }
 
+struct type *
+x86_linux_get_siginfo_type (struct gdbarch *gdbarch)
+{
+  return linux_get_siginfo_type_with_fields (gdbarch, LINUX_SIGINFO_FIELD_ADDR_BND);
+}
+
 /* Similar to i386_collect_fpregset, but use XSAVE extended state.  */
 
 static void
@@ -994,6 +1000,8 @@ i386_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   set_xml_syscall_file_name (gdbarch, XML_SYSCALL_FILENAME_I386);
   set_gdbarch_get_syscall_number (gdbarch,
                                   i386_linux_get_syscall_number);
+
+  set_gdbarch_get_siginfo_type (gdbarch, x86_linux_get_siginfo_type);
 }
 
 /* Provide a prototype to silence -Wmissing-prototypes.  */
diff --git a/gdb/i386-linux-tdep.h b/gdb/i386-linux-tdep.h
index ee6abff..f8e0074 100644
--- a/gdb/i386-linux-tdep.h
+++ b/gdb/i386-linux-tdep.h
@@ -72,4 +72,7 @@ extern struct target_desc *tdesc_i386_avx512_linux;
 
 extern int i386_linux_gregset_reg_offset[];
 
+/* Returns x86 siginfo type with extra fields.  */
+extern struct type *x86_get_siginfo_type_with_fields (struct gdbarch *gdbarch);
+
 #endif /* i386-linux-tdep.h */
diff --git a/gdb/linux-tdep.c b/gdb/linux-tdep.c
index 48bed11..a49057f 100644
--- a/gdb/linux-tdep.c
+++ b/gdb/linux-tdep.c
@@ -246,7 +246,7 @@ get_linux_inferior_data (void)
 /* This function is suitable for architectures that
    extend/override the standard siginfo in an specific way.  */
 
-static struct type *
+struct type *
 linux_get_siginfo_type_with_fields (struct gdbarch *gdbarch,
 				    linux_siginfo_extra_fields extra_fields)
 {
diff --git a/gdb/linux-tdep.h b/gdb/linux-tdep.h
index 98a17fa..5fcd266 100644
--- a/gdb/linux-tdep.h
+++ b/gdb/linux-tdep.h
@@ -34,6 +34,10 @@ enum linux_siginfo_extra_field_values
 /* Defines a type for the values defined in linux_siginfo_extra_field_values.  */
 DEF_ENUM_FLAGS_TYPE (enum linux_siginfo_extra_field_values, linux_siginfo_extra_fields);
 
+/* Return the siginfo type with additional fields.  */
+struct type *linux_get_siginfo_type_with_fields (struct gdbarch *gdbarch,
+						 linux_siginfo_extra_fields);
+
 typedef char *(*linux_collect_thread_registers_ftype) (const struct regcache *,
 						       ptid_t,
 						       bfd *, char *, int *,
-- 
2.1.4