yocto-poky: Move to import-layers subdir

We are going to import additional layers, so create a subdir to
hold all of the layers that we import with git-subtree.

Change-Id: I6f732153a22be8ca663035c518837e3cc5ec0799
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>

16 files changed, 1373 insertions, 0 deletions

diff --git a/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb-7.10.1.inc b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb-7.10.1.inc
new file mode 100644
index 000000000..a9267d554
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb-7.10.1.inc
@@ -0,0 +1,9 @@
+LICENSE = "GPLv2 & GPLv3 & LGPLv2 & LGPLv3"
+LIC_FILES_CHKSUM = "file://COPYING;md5=59530bdf33659b29e73d4adb9f9f6552 \
+		    file://COPYING3;md5=d32239bcb673463ab874e80d47fae504 \
+		    file://COPYING3.LIB;md5=6a6a8e020838b23406c81b19c1d46df6 \
+		    file://COPYING.LIB;md5=9f604d8a4f8e74f4f5140845a21b6674"
+
+SRC_URI[md5sum] = "b93a2721393e5fa226375b42d567d90b"
+SRC_URI[sha256sum] = "ff14f8050e6484508c73cbfa63731e57901478490ca1672dc0b5e2b03f6af622"
+
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb-common.inc b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb-common.inc
new file mode 100644
index 000000000..0d28ee4ee
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb-common.inc
@@ -0,0 +1,72 @@
+SUMMARY = "GNU debugger"
+HOMEPAGE = "http://www.gnu.org/software/gdb/"
+LICENSE = "GPLv3+"
+SECTION = "devel"
+DEPENDS = "expat zlib ncurses ${LTTNGUST}"
+
+LTTNGUST = "lttng-ust"
+LTTNGUST_aarch64 = ""
+LTTNGUST_libc-uclibc = ""
+LTTNGUST_mips = ""
+LTTNGUST_mipsel = ""
+LTTNGUST_mips64 = ""
+LTTNGUST_mips64el = ""
+LTTNGUST_mips64n32 = ""
+LTTNGUST_mips64eln32 = ""
+LTTNGUST_sh4 = ""
+LTTNGUST_libc-musl = ""
+
+INC_PR = "r0"
+
+LIC_FILES_CHKSUM = "file://COPYING;md5=59530bdf33659b29e73d4adb9f9f6552 \
+		file://COPYING.LIB;md5=9f604d8a4f8e74f4f5140845a21b6674 \
+		file://COPYING3;md5=d32239bcb673463ab874e80d47fae504 \
+		file://COPYING3.LIB;md5=6a6a8e020838b23406c81b19c1d46df6"
+
+inherit autotools texinfo
+
+SRC_URI = "${GNU_MIRROR}/gdb/gdb-${PV}.tar.gz \
+          "
+
+B = "${WORKDIR}/build-${TARGET_SYS}"
+
+EXTRA_OEMAKE = "'SUBDIRS=intl mmalloc libiberty opcodes bfd sim gdb etc utils'"
+
+EXPAT = "--with-expat --with-libexpat-prefix=${STAGING_DIR_HOST}"
+
+EXTRA_OECONF = "--disable-gdbtk --disable-tui --disable-x --disable-werror \
+                --with-curses --disable-multilib --disable-sim \
+                --without-lzma --without-guile \
+                ${GDBPROPREFIX} ${EXPAT} \
+                ${@bb.utils.contains('DISTRO_FEATURES', 'multiarch', '--enable-64-bit-bfd', '', d)} \
+                --disable-rpath \
+               "
+
+PACKAGECONFIG ??= "readline"
+# Use --without-system-readline to compile with readline 5.
+PACKAGECONFIG[readline] = "--with-system-readline,--without-system-readline,readline"
+PACKAGECONFIG[python] = "--with-python=${WORKDIR}/python,--without-python,python,python python-codecs"
+PACKAGECONFIG[babeltrace] = "--with-babeltrace,--without-babeltrace,babeltrace"
+
+GDBPROPREFIX = "--program-prefix=''"
+
+do_configure () {
+	# override this function to avoid the autoconf/automake/aclocal/autoheader
+	# calls for now
+	(cd ${S} && gnu-configize) || die "failure in running gnu-configize"
+	oe_runconf
+}
+
+# we don't want gdb to provide bfd/iberty/opcodes, which instead will override the
+# right bits installed by binutils.
+do_install_append() {
+	rm -rf ${D}${libdir}
+	rm -rf ${D}${includedir}
+	rm -rf ${D}${datadir}/locale
+}
+
+RRECOMMENDS_gdb_append_linux = " glibc-thread-db "
+RRECOMMENDS_gdb_append_linux-gnueabi = " glibc-thread-db "
+RRECOMMENDS_gdbserver_append_linux = " glibc-thread-db "
+RRECOMMENDS_gdbserver_append_linux-gnueabi = " glibc-thread-db "
+
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb-cross-canadian.inc b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb-cross-canadian.inc
new file mode 100644
index 000000000..6e42af1ba
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb-cross-canadian.inc
@@ -0,0 +1,42 @@
+inherit cross-canadian
+inherit python-dir
+
+SUMMARY = "GNU debugger (cross-canadian gdb for ${TARGET_ARCH} target)"
+PN = "gdb-cross-canadian-${TRANSLATED_TARGET_ARCH}"
+BPN = "gdb"
+
+DEPENDS = "nativesdk-ncurses nativesdk-expat nativesdk-gettext \
+           virtual/${HOST_PREFIX}gcc-crosssdk virtual/${HOST_PREFIX}binutils-crosssdk virtual/nativesdk-${HOST_PREFIX}libc-for-gcc"
+
+GDBPROPREFIX = "--program-prefix='${TARGET_PREFIX}'"
+
+# Overrides PACKAGECONFIG variables in gdb-common.inc
+PACKAGECONFIG ??= "python readline"
+PACKAGECONFIG[python] = "--with-python=${WORKDIR}/python,--without-python,nativesdk-python, \
+                         nativesdk-python-core nativesdk-python-lang nativesdk-python-re \
+                         nativesdk-python-codecs nativesdk-python-netclient"
+PACKAGECONFIG[readline] = "--with-system-readline,--without-system-readline,nativesdk-readline"
+
+SSTATE_DUPWHITELIST += "${STAGING_DATADIR}/gdb"
+
+do_configure_prepend() {
+cat > ${WORKDIR}/python << EOF
+#! /bin/sh
+case "\$2" in
+        --includes) echo "-I${STAGING_INCDIR}/${PYTHON_DIR}/" ;;
+        --ldflags) echo "-Wl,-rpath-link,${STAGING_LIBDIR}/.. -Wl,-rpath,${libdir}/.. -lpthread -ldl -lutil -lm -lpython${PYTHON_BASEVERSION}" ;;
+        --exec-prefix) echo "${exec_prefix}" ;;
+        *) exit 1 ;;
+esac
+exit 0
+EOF
+        chmod +x ${WORKDIR}/python
+}
+
+# we don't want gdb to provide bfd/iberty/opcodes, which instead will override the
+# right bits installed by binutils.
+do_install_append() {
+	rm -rf ${D}${exec_prefix}/lib
+	cross_canadian_bindirlinks
+}
+
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb-cross-canadian_7.10.1.bb b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb-cross-canadian_7.10.1.bb
new file mode 100644
index 000000000..301035940
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb-cross-canadian_7.10.1.bb
@@ -0,0 +1,3 @@
+require gdb-common.inc
+require gdb-cross-canadian.inc
+require gdb-${PV}.inc
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb-cross.inc b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb-cross.inc
new file mode 100644
index 000000000..2468d2303
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb-cross.inc
@@ -0,0 +1,29 @@
+require gdb-common.inc
+
+DEPENDS = "expat-native ncurses-native"
+
+inherit pythonnative
+
+# Overrides PACKAGECONFIG variables in gdb-common.inc
+PACKAGECONFIG ??= "python readline"
+PACKAGECONFIG[python] = "--with-python=${STAGING_BINDIR_NATIVE}/python-native/python,--without-python,python-native"
+PACKAGECONFIG[readline] = "--with-system-readline,--without-system-readline,readline-native"
+
+do_compile_prepend() {
+    export BUILD_SYS="${BUILD_SYS}"
+    export HOST_SYS="${HOST_SYS}"
+    export STAGING_LIBDIR="${STAGING_LIBDIR_NATIVE}"
+    export STAGING_INCDIR="${STAGING_INCDIR_NATIVE}"
+}
+
+#EXTRA_OEMAKE += "LDFLAGS='${BUILD_LDFLAGS}'"
+
+GDBPROPREFIX = ""
+
+PN = "gdb-cross-${TARGET_ARCH}"
+BPN = "gdb"
+
+inherit cross
+inherit gettext
+
+datadir .= "/gdb-${TUNE_PKGARCH}${TARGET_VENDOR}-${TARGET_OS}"
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb-cross_7.10.1.bb b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb-cross_7.10.1.bb
new file mode 100644
index 000000000..3a95cfb03
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb-cross_7.10.1.bb
@@ -0,0 +1,4 @@
+require gdb-cross.inc
+require gdb-${PV}.inc
+
+SRC_URI += "file://0001-make-man-install-relative-to-DESTDIR.patch"
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb.inc b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb.inc
new file mode 100644
index 000000000..d9c864dca
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb.inc
@@ -0,0 +1,18 @@
+require gdb-common.inc
+
+inherit gettext
+
+SRC_URI += "file://0002-Change-order-of-CFLAGS.patch \
+            file://0003-Add-support-for-Renesas-SH-sh4-architecture.patch \
+            file://0001-Use-exported-definitions-of-SIGRTMIN.patch \
+            file://0001-include-sys-types.h-for-mode_t.patch \
+            file://0001-use-asm-sgidefs.h.patch \
+            file://force-readline-static.patch \
+            file://0001-mips-linux-nat-Define-_ABIO32-if-not-defined.patch \
+           "
+#LDFLAGS_append = " -s"
+#export CFLAGS_append=" -L${STAGING_LIBDIR}"
+
+# cross-canadian must not see this
+PACKAGES =+ "gdbserver"
+FILES_gdbserver = "${bindir}/gdbserver"
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0001-Use-exported-definitions-of-SIGRTMIN.patch b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0001-Use-exported-definitions-of-SIGRTMIN.patch
new file mode 100644
index 000000000..5f0c09693
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0001-Use-exported-definitions-of-SIGRTMIN.patch
@@ -0,0 +1,54 @@
+From 2f97e89e9e4e5797d0d973e1d05c1f44c46b4912 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 5 Jun 2015 20:21:38 -0700
+Subject: [PATCH] Use exorted definitions of SIGRTMIN
+
+Define W_STOPCODE if not defined already
+
+__SIGRTMIN is internal to glibc and other libcs e.g. musl
+may not provide them
+
+Fixes
+https://sourceware.org/bugzilla/show_bug.cgi?id=13012
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+Upstream-Status: Submitted
+
+ gdb/linux-nat.c     | 4 ++--
+ gdb/nat/linux-nat.h | 4 ++++
+ 2 files changed, 6 insertions(+), 2 deletions(-)
+
+diff --git a/gdb/linux-nat.c b/gdb/linux-nat.c
+index 396c30c..50320ee 100644
+--- a/gdb/linux-nat.c
++++ b/gdb/linux-nat.c
+@@ -4856,10 +4856,10 @@ lin_thread_get_thread_signals (sigset_t *set)
+      fortunately they don't change!  */
+ 
+   if (restart == 0)
+-    restart = __SIGRTMIN;
++    restart = SIGRTMIN;
+ 
+   if (cancel == 0)
+-    cancel = __SIGRTMIN + 1;
++    cancel = SIGRTMIN + 1;
+ 
+   sigaddset (set, restart);
+   sigaddset (set, cancel);
+diff --git a/gdb/nat/linux-nat.h b/gdb/nat/linux-nat.h
+index 83a6d91..efbe0fd 100644
+--- a/gdb/nat/linux-nat.h
++++ b/gdb/nat/linux-nat.h
+@@ -25,4 +25,8 @@
+    instead SIGTRAP with bit 7 set.  */
+ #define SYSCALL_SIGTRAP (SIGTRAP | 0x80)
+ 
++#ifndef W_STOPCODE
++#define W_STOPCODE(sig) ((sig) << 8 | 0x7f)
++#endif
++
+ #endif /* LINUX_NAT_H */
+-- 
+2.1.4
+
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0001-include-sys-types.h-for-mode_t.patch b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0001-include-sys-types.h-for-mode_t.patch
new file mode 100644
index 000000000..a0292e416
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0001-include-sys-types.h-for-mode_t.patch
@@ -0,0 +1,30 @@
+From acbee4edacb80b5eeaff2480712fe98e56443997 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Tue, 19 Jan 2016 18:18:52 -0800
+Subject: [PATCH] include sys/types.h for mode_t
+
+mode_t is used in target.h, so we need to include sys/types.h to get the
+defintion
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+Upstream-Status: Pending
+
+ gdb/gdbserver/target.h | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/gdb/gdbserver/target.h b/gdb/gdbserver/target.h
+index 9a40867..aaecab9 100644
+--- a/gdb/gdbserver/target.h
++++ b/gdb/gdbserver/target.h
+@@ -27,6 +27,7 @@
+ #include "target/waitstatus.h"
+ #include "mem-break.h"
+ #include "btrace-common.h"
++#include <sys/types.h>
+ 
+ struct emit_ops;
+ struct buffer;
+-- 
+2.7.0
+
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0001-make-man-install-relative-to-DESTDIR.patch b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0001-make-man-install-relative-to-DESTDIR.patch
new file mode 100644
index 000000000..6996c183b
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0001-make-man-install-relative-to-DESTDIR.patch
@@ -0,0 +1,28 @@
+From 12b0506951460c3cc37d775478d024db3f95e9d8 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Mon, 2 Mar 2015 02:27:55 +0000
+Subject: [PATCH 1/3] make man install relative to DESTDIR
+
+Upstream-Status: Pending
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ sim/common/Makefile.in | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/sim/common/Makefile.in b/sim/common/Makefile.in
+index d49a93b..2121c46 100644
+--- a/sim/common/Makefile.in
++++ b/sim/common/Makefile.in
+@@ -35,7 +35,7 @@ tooldir = $(libdir)/$(target_alias)
+ datarootdir = @datarootdir@
+ datadir = @datadir@
+ mandir = @mandir@
+-man1dir = $(mandir)/man1
++man1dir = $(DESTDIR)$(mandir)/man1
+ infodir = @infodir@
+ includedir = @includedir@
+ 
+-- 
+2.1.4
+
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0001-mips-linux-nat-Define-_ABIO32-if-not-defined.patch b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0001-mips-linux-nat-Define-_ABIO32-if-not-defined.patch
new file mode 100644
index 000000000..31739525a
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0001-mips-linux-nat-Define-_ABIO32-if-not-defined.patch
@@ -0,0 +1,37 @@
+From e92f8932ef488de2a56db4299131ce6a4eb170bd Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Wed, 23 Mar 2016 06:30:09 +0000
+Subject: [PATCH] mips-linux-nat: Define _ABIO32 if not defined
+
+This helps building gdb on mips64 on musl, since
+musl does not provide sgidefs.h this define is
+only defined when GCC is using o32 ABI, in that
+case gcc emits it as built-in define and hence
+it works ok for mips32
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+Upstream-Status: Pending
+
+ gdb/mips-linux-nat.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/gdb/mips-linux-nat.c b/gdb/mips-linux-nat.c
+index fd5c705..753f29d 100644
+--- a/gdb/mips-linux-nat.c
++++ b/gdb/mips-linux-nat.c
+@@ -46,6 +46,11 @@
+ #define PTRACE_GET_THREAD_AREA 25
+ #endif
+ 
++/* musl does not define and relies on compiler built-in macros for it   */
++#ifndef _ABIO32
++#define _ABIO32 1
++#endif
++
+ /* Assume that we have PTRACE_GETREGS et al. support.  If we do not,
+    we'll clear this and use PTRACE_PEEKUSER instead.  */
+ static int have_ptrace_regsets = 1;
+-- 
+1.8.3.1
+
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0001-use-asm-sgidefs.h.patch b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0001-use-asm-sgidefs.h.patch
new file mode 100644
index 000000000..eaec39030
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0001-use-asm-sgidefs.h.patch
@@ -0,0 +1,35 @@
+From 677b5b56135141c0d259e370aacd0e11c810aa15 Mon Sep 17 00:00:00 2001
+From: Andre McCurdy <armccurdy@gmail.com>
+Date: Fri, 5 Feb 2016 14:00:00 -0800
+Subject: [PATCH] use <asm/sgidefs.h>
+
+Build fix for MIPS with musl libc
+
+The MIPS specific header <sgidefs.h> is provided by glibc and uclibc
+but not by musl. Regardless of the libc, the kernel headers provide
+<asm/sgidefs.h> which provides the same definitions, so use that
+instead.
+
+Upstream-Status: Pending
+
+Signed-off-by: Andre McCurdy <armccurdy@gmail.com>
+---
+ gdb/mips-linux-nat.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/gdb/mips-linux-nat.c b/gdb/mips-linux-nat.c
+index a36bb63..fd5c705 100644
+--- a/gdb/mips-linux-nat.c
++++ b/gdb/mips-linux-nat.c
+@@ -31,7 +31,7 @@
+ #include "gdb_proc_service.h"
+ #include "gregset.h"
+ 
+-#include <sgidefs.h>
++#include <asm/sgidefs.h>
+ #include <sys/ptrace.h>
+ #include <asm/ptrace.h>
+ 
+-- 
+1.9.1
+
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0002-Change-order-of-CFLAGS.patch b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0002-Change-order-of-CFLAGS.patch
new file mode 100644
index 000000000..bccb45fda
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0002-Change-order-of-CFLAGS.patch
@@ -0,0 +1,34 @@
+From 262ccc4fdb2a3df0f16c61a807046964ae7729c9 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Mon, 2 Mar 2015 02:29:23 +0000
+Subject: [PATCH 2/3] Change order of CFLAGS
+
+Lets us override Werror if need be
+
+Upstream-Status: Inappropriate
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ gdb/gdbserver/Makefile.in | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/gdb/gdbserver/Makefile.in b/gdb/gdbserver/Makefile.in
+index 1ed2ec8..0cef95b 100644
+--- a/gdb/gdbserver/Makefile.in
++++ b/gdb/gdbserver/Makefile.in
+@@ -131,10 +131,10 @@ CFLAGS = @CFLAGS@
+ CPPFLAGS = @CPPFLAGS@
+ 
+ # INTERNAL_CFLAGS is the aggregate of all other *CFLAGS macros.
+-INTERNAL_CFLAGS_BASE =  ${CFLAGS} ${GLOBAL_CFLAGS} \
++INTERNAL_CFLAGS_BASE = ${GLOBAL_CFLAGS} \
+ 	${PROFILE_CFLAGS} ${INCLUDE_CFLAGS} ${CPPFLAGS}
+ INTERNAL_WARN_CFLAGS =  ${INTERNAL_CFLAGS_BASE} $(WARN_CFLAGS)
+-INTERNAL_CFLAGS =  ${INTERNAL_WARN_CFLAGS} $(WERROR_CFLAGS) -DGDBSERVER
++INTERNAL_CFLAGS =  ${INTERNAL_WARN_CFLAGS} $(WERROR_CFLAGS) ${CFLAGS} -DGDBSERVER
+ 
+ # LDFLAGS is specifically reserved for setting from the command line
+ # when running make.
+-- 
+2.1.4
+
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0003-Add-support-for-Renesas-SH-sh4-architecture.patch b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0003-Add-support-for-Renesas-SH-sh4-architecture.patch
new file mode 100644
index 000000000..4a3e22c44
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/0003-Add-support-for-Renesas-SH-sh4-architecture.patch
@@ -0,0 +1,921 @@
+From 407cb13cfb70697f45dfb761304e005e1ecbd0e9 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Mon, 2 Mar 2015 02:31:12 +0000
+Subject: [PATCH 3/3] Add support for Renesas SH (sh4) architecture.
+
+gdb (7.4-1~cvs20111117.2) experimental; urgency=low
+ .
+   * Add Renesas SH (sh4) support (Closes: #576242)
+     - Thanks Nobuhiro Iwamatsu, Takashi Yoshii.
+Author: Hector Oron <zumbi@debian.org>
+Bug-Debian: http://bugs.debian.org/576242
+
+Upstream-Status: Pending
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ gdb/Makefile.in                      |   1 +
+ gdb/configure.host                   |   1 +
+ gdb/sh-linux-tdep.c                  | 519 +++++++++++++++++++++++++++++++++++
+ gdb/sh-tdep.c                        |  54 ++--
+ gdb/sh-tdep.h                        |  49 ++++
+ gdb/testsuite/gdb.asm/asm-source.exp |   5 +
+ gdb/testsuite/gdb.asm/sh.inc         |   3 +-
+ gdb/testsuite/gdb.base/annota1.c     |   3 +
+ gdb/testsuite/gdb.base/annota3.c     |   4 +
+ gdb/testsuite/gdb.base/sigall.c      |   3 +
+ gdb/testsuite/gdb.base/signals.c     |   4 +
+ 11 files changed, 617 insertions(+), 29 deletions(-)
+
+diff --git a/gdb/Makefile.in b/gdb/Makefile.in
+index 7937801..63baf81 100644
+--- a/gdb/Makefile.in
++++ b/gdb/Makefile.in
+@@ -1707,6 +1707,7 @@ ALLDEPFILES = \
+ 	score-tdep.c \
+ 	ser-go32.c ser-pipe.c ser-tcp.c ser-mingw.c \
+ 	sh-tdep.c sh64-tdep.c shnbsd-tdep.c shnbsd-nat.c \
++	sh-linux-tdep.c sh-linux-nat.c \
+ 	sol2-tdep.c \
+ 	solib-svr4.c \
+ 	sparc-linux-nat.c sparc-linux-tdep.c \
+diff --git a/gdb/configure.host b/gdb/configure.host
+index d07be4b..b6391c5 100644
+--- a/gdb/configure.host
++++ b/gdb/configure.host
+@@ -150,6 +150,7 @@ powerpc*-*-linux*)	gdb_host=linux ;;
+ 
+ s390*-*-linux*)		gdb_host=linux ;;
+ 
++sh*-*-linux*)		gdb_host=linux ;;
+ sh*-*-netbsdelf* | sh*-*-knetbsd*-gnu)
+ 			gdb_host=nbsd ;;
+ sh*-*-openbsd*)		gdb_host=nbsd ;;
+diff --git a/gdb/sh-linux-tdep.c b/gdb/sh-linux-tdep.c
+index 2ff2ee8..1a11262 100644
+--- a/gdb/sh-linux-tdep.c
++++ b/gdb/sh-linux-tdep.c
+@@ -18,14 +18,37 @@
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+ 
+ #include "defs.h"
++#include "gdbcore.h"
++#include "frame.h"
++#include "frame-base.h"
++#include "frame-unwind.h"
++#include "dwarf2-frame.h"
++#include "value.h"
++#include "regcache.h"
++#include "inferior.h"
+ #include "osabi.h"
+ 
++#include "reggroups.h"
++#include "arch-utils.h"
++#include "floatformat.h"
+ #include "solib-svr4.h"
+ #include "symtab.h"
++#include "gdb_string.h"
++#include "command.h"
++#include "gdb_assert.h"
+ 
+ #include "trad-frame.h"
+ #include "tramp-frame.h"
+ 
++#include <sys/ptrace.h>
++#include <sys/types.h>
++#include <sys/param.h>
++#include <sys/user.h>
++#include <sys/syscall.h>
++
++#include <asm/ptrace.h>
++
++#include "regset.h"
+ #include "glibc-tdep.h"
+ #include "sh-tdep.h"
+ #include "linux-tdep.h"
+@@ -180,9 +203,505 @@ static struct tramp_frame sh_linux_rt_sigreturn_tramp_frame = {
+   sh_linux_rt_sigreturn_init
+ };
+ 
++/* Recognizing signal handler frames.  */
++
++/* GNU/Linux has two flavors of signals.  Normal signal handlers, and
++   "realtime" (RT) signals.  The RT signals can provide additional
++   information to the signal handler if the SA_SIGINFO flag is set
++   when establishing a signal handler using `sigaction'.  It is not
++   unlikely that future versions of GNU/Linux will support SA_SIGINFO
++   for normal signals too.  */
++
++/* When the SH Linux kernel calls a signal handler and the
++   SA_RESTORER flag isn't set, the return address points to a bit of
++   code on the stack.  This function returns whether the PC appears to
++   be within this bit of code.
++
++   The instruction sequence for normal signals is
++       mov.w  1f,r3
++       trapa  #16
++       or     r0, r0
++       or     r0, r0
++       or     r0, r0
++       or     r0, r0
++       or     r0, r0
++    1: .word  __NR_sigreturn
++   or 0x9305 0xc310 0x200b 0x200b 0x200b 0x200b 0x200b 0x0077.
++
++   Checking for the code sequence should be somewhat reliable, because
++   the effect is to call the system call sigreturn.  This is unlikely
++   to occur anywhere other than a signal trampoline.
++
++   It kind of sucks that we have to read memory from the process in
++   order to identify a signal trampoline, but there doesn't seem to be
++   any other way.  The PC_IN_SIGTRAMP macro in tm-linux.h arranges to
++   only call us if no function name could be identified, which should
++   be the case since the code is on the stack.
++
++   Detection of signal trampolines for handlers that set the
++   SA_RESTORER flag is in general not possible.  Unfortunately this is
++   what the GNU C Library has been doing for quite some time now.
++   However, as of version 2.1.2, the GNU C Library uses signal
++   trampolines (named __restore and __restore_rt) that are identical
++   to the ones used by the kernel.  Therefore, these trampolines are
++   supported too.  */
++
++#define MOVW(n)	 (0x9300|((n)-2))	/* Move mem word at PC+n to R3 */
++#define TRAP16	 0xc310			/* Syscall w/no args (NR in R3) */
++#define OR_R0_R0 0x200b			/* or r0,r0 (insert to avoid hardware bug) */
++
++#define LINUX_SIGTRAMP_INSN0	MOVW(7)		/* Move mem word at PC+7 to R3 */
++#define LINUX_SIGTRAMP_INSN1	TRAP16		/* Syscall w/no args (NR in R3) */
++#define LINUX_SIGTRAMP_INSN2	OR_R0_R0	/* or r0,r0 (insert to avoid hardware bug) */
++
++static const unsigned short linux_sigtramp_code[] =
++{
++  LINUX_SIGTRAMP_INSN0,
++  LINUX_SIGTRAMP_INSN1,
++  LINUX_SIGTRAMP_INSN2,
++  LINUX_SIGTRAMP_INSN2,
++  LINUX_SIGTRAMP_INSN2,
++  LINUX_SIGTRAMP_INSN2,
++  LINUX_SIGTRAMP_INSN2,
++  __NR_sigreturn
++};
++
++#define LINUX_SIGTRAMP_LEN (sizeof linux_sigtramp_code)
++
++/* If PC is in a sigtramp routine, return the address of the start of
++   the routine.  Otherwise, return 0.  */
++
++static CORE_ADDR
++sh_linux_sigtramp_start (struct frame_info *next_frame)
++{
++  CORE_ADDR pc = get_frame_pc (next_frame);
++  gdb_byte buf[LINUX_SIGTRAMP_LEN];
++
++  /* We only recognize a signal trampoline if PC is at the start of
++     one of the three instructions.  We optimize for finding the PC at
++     the start, as will be the case when the trampoline is not the
++     first frame on the stack.  We assume that in the case where the
++     PC is not at the start of the instruction sequence, there will be
++     a few trailing readable bytes on the stack.  */
++
++  if (!safe_frame_unwind_memory (next_frame, pc, buf, LINUX_SIGTRAMP_LEN))
++    return 0;
++
++  if (buf[0] != LINUX_SIGTRAMP_INSN0)
++    {
++      if (buf[0] != LINUX_SIGTRAMP_INSN1)
++        return 0;
++
++      pc -= 2;
++
++      if (!safe_frame_unwind_memory (next_frame, pc, buf, LINUX_SIGTRAMP_LEN))
++	return 0;
++    }
++
++  if (memcmp (buf, linux_sigtramp_code, LINUX_SIGTRAMP_LEN) != 0)
++    return 0;
++
++  return pc;
++}
++
++/* This function does the same for RT signals.  Here the instruction
++   sequence is
++       mov.w  1f,r3
++       trapa  #16
++       or     r0, r0
++       or     r0, r0
++       or     r0, r0
++       or     r0, r0
++       or     r0, r0
++    1: .word  __NR_rt_sigreturn
++   or 0x9305 0xc310 0x200b 0x200b 0x200b 0x200b 0x200b 0x00ad.
++
++   The effect is to call the system call rt_sigreturn.  */
++
++#define LINUX_RT_SIGTRAMP_INSN0		MOVW(7)		/* Move mem word at PC+7 to R3 */
++#define LINUX_RT_SIGTRAMP_INSN1		TRAP16		/* Syscall w/no args (NR in R3) */
++#define LINUX_RT_SIGTRAMP_INSN2		OR_R0_R0	/* or r0,r0 (insert to avoid hardware bug) */
++
++static const unsigned short linux_rt_sigtramp_code[] =
++{
++  LINUX_RT_SIGTRAMP_INSN0,
++  LINUX_RT_SIGTRAMP_INSN1,
++  LINUX_RT_SIGTRAMP_INSN2,
++  LINUX_RT_SIGTRAMP_INSN2,
++  LINUX_RT_SIGTRAMP_INSN2,
++  LINUX_RT_SIGTRAMP_INSN2,
++  LINUX_RT_SIGTRAMP_INSN2,
++  __NR_rt_sigreturn
++};
++
++#define LINUX_RT_SIGTRAMP_LEN (sizeof linux_rt_sigtramp_code)
++
++/* If PC is in a RT sigtramp routine, return the address of the start
++   of the routine.  Otherwise, return 0.  */
++
++static CORE_ADDR
++sh_linux_rt_sigtramp_start (struct frame_info *next_frame)
++{
++  CORE_ADDR pc = get_frame_pc (next_frame);
++  gdb_byte buf[LINUX_RT_SIGTRAMP_LEN];
++
++  /* We only recognize a signal trampoline if PC is at the start of
++     one of the two instructions.  We optimize for finding the PC at
++     the start, as will be the case when the trampoline is not the
++     first frame on the stack.  We assume that in the case where the
++     PC is not at the start of the instruction sequence, there will be
++     a few trailing readable bytes on the stack.  */
++
++  if (!safe_frame_unwind_memory (next_frame, pc, buf, LINUX_RT_SIGTRAMP_LEN))
++    return 0;
++
++  if (buf[0] != LINUX_RT_SIGTRAMP_INSN0)
++    {
++      if (buf[0] != LINUX_RT_SIGTRAMP_INSN1)
++	return 0;
++
++      pc -= 2;
++
++      if (!safe_frame_unwind_memory (next_frame, pc, buf,
++				     LINUX_RT_SIGTRAMP_LEN))
++	return 0;
++    }
++
++  if (memcmp (buf, linux_rt_sigtramp_code, LINUX_RT_SIGTRAMP_LEN) != 0)
++    return 0;
++
++  return pc;
++}
++
++/* Return whether PC is in a GNU/Linux sigtramp routine.  */
++
++static int
++sh_linux_sigtramp_p (struct frame_info *this_frame)
++{
++  CORE_ADDR pc = get_frame_pc (this_frame);
++  char *name;
++
++  find_pc_partial_function (pc, &name, NULL, NULL);
++
++  /* If we have NAME, we can optimize the search.  The trampolines are
++     named __restore and __restore_rt.  However, they aren't dynamically
++     exported from the shared C library, so the trampoline may appear to
++     be part of the preceding function.  This should always be sigaction,
++     __sigaction, or __libc_sigaction (all aliases to the same function).  */
++  if (name == NULL || strstr (name, "sigaction") != NULL)
++    return (sh_linux_sigtramp_start (this_frame) != 0
++	    || sh_linux_rt_sigtramp_start (this_frame) != 0);
++
++  return (strcmp ("__restore", name) == 0
++	  || strcmp ("__restore_rt", name) == 0);
++}
++
++/* Offset to struct sigcontext in ucontext, from <asm/ucontext.h>.  */
++#define SH_LINUX_UCONTEXT_SIGCONTEXT_OFFSET 12
++
++
++/* Assuming NEXT_FRAME is a frame following a GNU/Linux sigtramp
++   routine, return the address of the associated sigcontext structure.  */
++
++static CORE_ADDR
++sh_linux_sigcontext_addr (struct frame_info *this_frame)
++{
++  CORE_ADDR pc;
++  CORE_ADDR sp;
++
++  sp = get_frame_register_unsigned (this_frame, SP_REGNUM);
++
++  pc = sh_linux_sigtramp_start (this_frame);
++  if (pc)
++    {
++      return sp;
++    }
++
++  pc = sh_linux_rt_sigtramp_start (this_frame);
++  if (pc)
++    {
++      CORE_ADDR ucontext_addr;
++
++      /* The sigcontext structure is part of the user context.  A
++	 pointer to the user context is passed as the third argument
++	 to the signal handler.  */
++      ucontext_addr = get_frame_register_unsigned (this_frame, ARG0_REGNUM+2);
++      return ucontext_addr + SH_LINUX_UCONTEXT_SIGCONTEXT_OFFSET;
++    }
++
++  error ("Couldn't recognize signal trampoline.");
++  return 0;
++}
++
++/* Signal trampolines.  */
++extern struct sh_frame_cache *sh_alloc_frame_cache (void);
++
++static struct sh_frame_cache *
++sh_linux_sigtramp_frame_cache (struct frame_info *this_frame, void **this_cache)
++{
++  struct sh_frame_cache *cache;
++  struct gdbarch_tdep *tdep = gdbarch_tdep (get_current_arch ());
++  CORE_ADDR sigcontext_addr;
++
++  if (*this_cache)
++    return *this_cache;
++
++  cache = sh_alloc_frame_cache ();
++
++  cache->base = get_frame_register_unsigned (this_frame, SP_REGNUM);
++  sigcontext_addr = tdep->sigcontext_addr (this_frame);
++  if (tdep->sc_reg_offset)
++    {
++      int i;
++
++      gdb_assert (tdep->sc_num_regs <= SH_NUM_REGS);
++
++      for (i = 0; i < tdep->sc_num_regs; i++)
++	if (tdep->sc_reg_offset[i] != -1)
++	  cache->saved_regs[i] = sigcontext_addr + tdep->sc_reg_offset[i];
++    }
++
++  *this_cache = cache;
++  return cache;
++}
++
++static void
++sh_linux_sigtramp_frame_this_id (struct frame_info *this_frame, void **this_cache,
++			     struct frame_id *this_id)
++{
++  struct sh_frame_cache *cache =
++    sh_linux_sigtramp_frame_cache (this_frame, this_cache);
++
++  (*this_id) = frame_id_build (cache->base + 64, cache->pc);
++}
++
++extern struct value * sh_frame_prev_register ();
++static struct value *
++sh_linux_sigtramp_frame_prev_register (struct frame_info *this_frame,
++                   void **this_cache, int regnum)
++{
++  sh_linux_sigtramp_frame_cache (this_frame, this_cache);
++
++  return sh_frame_prev_register (this_frame, this_cache, regnum);
++}
++
++static int
++sh_linux_sigtramp_frame_sniffer (const struct frame_unwind *self,
++                 struct frame_info *this_frame,
++                 void **this_prologue_cache)
++{
++  struct gdbarch_tdep *tdep = gdbarch_tdep (get_frame_arch (this_frame));
++
++  /* We shouldn't even bother if we don't have a sigcontext_addr
++     handler.  */
++  if (tdep->sigcontext_addr == NULL)
++    return 0;
++
++  if (tdep->sigtramp_p != NULL)
++    {
++      if (tdep->sigtramp_p (this_frame))
++    return 1;
++    }
++
++  return 0;
++}
++
++static const struct frame_unwind sh_linux_sigtramp_frame_unwind =
++{
++  SIGTRAMP_FRAME,
++  sh_linux_sigtramp_frame_this_id,
++  sh_linux_sigtramp_frame_prev_register,
++  NULL,
++  sh_linux_sigtramp_frame_sniffer
++};
++
++/* Supply register REGNUM from the buffer specified by GREGS and LEN
++   in the general-purpose register set REGSET to register cache
++   REGCACHE.  If REGNUM is -1, do this for all registers in REGSET.  */
++
++void
++sh_supply_gregset (const struct regset *regset, struct regcache *regcache,
++             int regnum, const void *gregs, size_t len)
++{
++  const struct gdbarch_tdep *tdep = gdbarch_tdep (regset->arch);
++  const char *regs = gregs;
++  int i;
++
++  gdb_assert (len == tdep->sizeof_gregset);
++
++  for (i = 0; i < tdep->gregset_num_regs; i++)
++    {
++      if ((regnum == i || regnum == -1)
++      && tdep->gregset_reg_offset[i] != -1)
++    regcache_raw_supply (regcache, i, regs + tdep->gregset_reg_offset[i]);
++    }
++}
++
++/* Collect register REGNUM from the register cache REGCACHE and store
++   it in the buffer specified by GREGS and LEN as described by the
++   general-purpose register set REGSET.  If REGNUM is -1, do this for
++   all registers in REGSET.  */
++
++void
++sh_collect_gregset (const struct regset *regset,
++              const struct regcache *regcache,
++              int regnum, void *gregs, size_t len)
++{
++  const struct gdbarch_tdep *tdep = gdbarch_tdep (regset->arch);
++  char *regs = gregs;
++  int i;
++
++  gdb_assert (len == tdep->sizeof_gregset);
++
++  for (i = 0; i < tdep->gregset_num_regs; i++)
++    {
++      if ((regnum == i || regnum == -1)
++      && tdep->gregset_reg_offset[i] != -1)
++    regcache_raw_collect (regcache, i, regs + tdep->gregset_reg_offset[i]);
++    }
++}
++
++/* Supply register REGNUM from the buffer specified by FPREGS and LEN
++   in the floating-point register set REGSET to register cache
++   REGCACHE.  If REGNUM is -1, do this for all registers in REGSET.  */
++
++static void
++sh_supply_fpregset (const struct regset *regset, struct regcache *regcache,
++              int regnum, const void *fpregs, size_t len)
++{
++  const struct gdbarch_tdep *tdep = gdbarch_tdep (regset->arch);
++  const char *regs = fpregs;
++  int i;
++
++  gdb_assert (len == tdep->sizeof_fpregset);
++  for (i = 0; i < 16; i++)
++    {
++      if (regnum == i+25 || regnum == -1)
++    regcache_raw_supply (regcache, i+25, regs + i*4);
++    }
++  if (regnum == FPSCR_REGNUM || regnum == -1)
++    regcache_raw_supply (regcache, FPSCR_REGNUM, regs + 32*4);
++  if (regnum == FPUL_REGNUM || regnum == -1)
++    regcache_raw_supply (regcache, FPUL_REGNUM, regs + 33*4);
++}
++
++/* Collect register REGNUM from the register cache REGCACHE and store
++   it in the buffer specified by FPREGS and LEN as described by the
++   floating-point register set REGSET.  If REGNUM is -1, do this for
++   all registers in REGSET.  */
++
++static void
++sh_collect_fpregset (const struct regset *regset,
++               const struct regcache *regcache,
++               int regnum, void *fpregs, size_t len)
++{
++  const struct gdbarch_tdep *tdep = gdbarch_tdep (regset->arch);
++  char *regs = fpregs;
++  int i;
++
++  gdb_assert (len == tdep->sizeof_fpregset);
++  for (i = 0; i < 16; i++)
++    {
++      if (regnum == i+25 || regnum == -1)
++    regcache_raw_collect (regcache, i+25, regs + i*4);
++    }
++  if (regnum == FPSCR_REGNUM || regnum == -1)
++    regcache_raw_collect (regcache, FPSCR_REGNUM, regs + 32*4);
++  if (regnum == FPUL_REGNUM || regnum == -1)
++    regcache_raw_collect (regcache, FPUL_REGNUM, regs + 33*4);
++}
++
++/* Return the appropriate register set for the core section identified
++   by SECT_NAME and SECT_SIZE.  */
++
++const struct regset *
++sh_linux_regset_from_core_section (struct gdbarch *gdbarch,
++                   const char *sect_name, size_t sect_size)
++{
++  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
++
++  if (strcmp (sect_name, ".reg") == 0 && sect_size == tdep->sizeof_gregset)
++    {
++      if (tdep->gregset == NULL)
++    tdep->gregset = regset_alloc (gdbarch, sh_supply_gregset,
++                      sh_collect_gregset);
++      return tdep->gregset;
++    }
++
++  if ((strcmp (sect_name, ".reg2") == 0 && sect_size == tdep->sizeof_fpregset))
++    {
++      if (tdep->fpregset == NULL)
++    tdep->fpregset = regset_alloc (gdbarch, sh_supply_fpregset,
++                       sh_collect_fpregset);
++      return tdep->fpregset;
++    }
++
++  return NULL;
++}
++
++/* The register sets used in GNU/Linux ELF core-dumps are identical to
++   the register sets in `struct user' that are used for a.out
++   core-dumps.  These are also used by ptrace(2).  The corresponding
++   types are `elf_gregset_t' for the general-purpose registers (with
++   `elf_greg_t' the type of a single GP register) and `elf_fpregset_t'
++   for the floating-point registers.
++
++   Those types used to be available under the names `gregset_t' and
++   `fpregset_t' too, and GDB used those names in the past.  But those
++   names are now used for the register sets used in the `mcontext_t'
++   type, which have a different size and layout.  */
++
++/* Mapping between the general-purpose registers in `struct user'
++   format and GDB's register cache layout.  */
++
++/* From <sys/reg.h>.  */
++static int sh_linux_gregset_reg_offset[] =
++{
++ 0,	4,	8,	12,	16,	20,	24,	28,
++ 32,	36,	40,	44,	48,	52,	56,	60,
++
++ REG_PC*4,   REG_PR*4,   REG_GBR*4,  -1,
++ REG_MACH*4, REG_MACL*4, REG_SR*4,
++};
++
++/* Mapping between the general-purpose registers in `struct
++   sigcontext' format and GDB's register cache layout.  */
++
++/* From <asm/sigcontext.h>.  */
++static int sh_linux_sc_reg_offset[] =
++{
++ 4,	8,	12,	16,	20,	24,	28,	32,
++ 36,	40,	44,	48,	52,	56,	60,	64,
++ 68,	72,	80,	-1,
++ 84,	88,	76
++};
++
+ static void
+ sh_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+ {
++  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
++  bfd abfd;
++
++  tdep->gregset_reg_offset = sh_linux_gregset_reg_offset;
++  tdep->gregset_num_regs = ARRAY_SIZE (sh_linux_gregset_reg_offset);
++  tdep->sizeof_gregset = 23 * 4;
++
++  tdep->jb_pc_offset = 32;     /* From <bits/setjmp.h>.  */
++
++  tdep->sigtramp_p = sh_linux_sigtramp_p;
++  tdep->sigcontext_addr = sh_linux_sigcontext_addr;
++  tdep->sc_reg_offset = sh_linux_sc_reg_offset;
++  tdep->sc_num_regs = ARRAY_SIZE (sh_linux_sc_reg_offset);
++
++  frame_unwind_append_unwinder(gdbarch, &sh_linux_sigtramp_frame_unwind);
++
++  /* If we have a register mapping, enable the generic core file
++     support, unless it has already been enabled.  */
++  if (tdep->gregset_reg_offset
++      && !gdbarch_regset_from_core_section_p (gdbarch))
++    set_gdbarch_regset_from_core_section (gdbarch,
++                                         sh_linux_regset_from_core_section);
++
+   linux_init_abi (info, gdbarch);
+ 
+   /* GNU/Linux uses SVR4-style shared libraries.  */
+diff --git a/gdb/sh-tdep.c b/gdb/sh-tdep.c
+index 82cf2f4..b443e46 100644
+--- a/gdb/sh-tdep.c
++++ b/gdb/sh-tdep.c
+@@ -21,6 +21,9 @@
+    sac@cygnus.com.  */
+ 
+ #include "defs.h"
++#include "arch-utils.h"
++#include "command.h"
++#include "dummy-frame.h"
+ #include "frame.h"
+ #include "frame-base.h"
+ #include "frame-unwind.h"
+@@ -35,6 +38,7 @@
+ #include "arch-utils.h"
+ #include "floatformat.h"
+ #include "regcache.h"
++#include "regset.h"
+ #include "doublest.h"
+ #include "osabi.h"
+ #include "reggroups.h"
+@@ -67,23 +71,6 @@ static const char *const sh_cc_enum[] = {
+ 
+ static const char *sh_active_calling_convention = sh_cc_gcc;
+ 
+-#define SH_NUM_REGS 67
+-
+-struct sh_frame_cache
+-{
+-  /* Base address.  */
+-  CORE_ADDR base;
+-  LONGEST sp_offset;
+-  CORE_ADDR pc;
+-
+-  /* Flag showing that a frame has been created in the prologue code.  */
+-  int uses_fp;
+-
+-  /* Saved registers.  */
+-  CORE_ADDR saved_regs[SH_NUM_REGS];
+-  CORE_ADDR saved_sp;
+-};
+-
+ static int
+ sh_is_renesas_calling_convention (struct type *func_type)
+ {
+@@ -1043,7 +1030,7 @@ sh_treat_as_flt_p (struct type *type)
+     return 0;
+   /* Otherwise if the type of that member is float, the whole type is
+      treated as float.  */
+-  if (TYPE_CODE (TYPE_FIELD_TYPE (type, 0)) == TYPE_CODE_FLT)
++  if (TYPE_CODE (check_typedef (TYPE_FIELD_TYPE (type, 0))) == TYPE_CODE_FLT)
+     return 1;
+   /* Otherwise it's not treated as float.  */
+   return 0;
+@@ -1093,7 +1080,7 @@ sh_push_dummy_call_fpu (struct gdbarch *gdbarch,
+      in four registers available.  Loop thru args from first to last.  */
+   for (argnum = 0; argnum < nargs; argnum++)
+     {
+-      type = value_type (args[argnum]);
++      type = check_typedef (value_type (args[argnum]));
+       len = TYPE_LENGTH (type);
+       val = sh_justify_value_in_reg (gdbarch, args[argnum], len);
+ 
+@@ -1821,7 +1808,7 @@ sh_dwarf2_frame_init_reg (struct gdbarch *gdbarch, int regnum,
+     reg->how = DWARF2_FRAME_REG_UNDEFINED;
+ }
+ 
+-static struct sh_frame_cache *
++struct sh_frame_cache *
+ sh_alloc_frame_cache (void)
+ {
+   struct sh_frame_cache *cache;
+@@ -1848,7 +1835,7 @@ sh_alloc_frame_cache (void)
+   return cache;
+ }
+ 
+-static struct sh_frame_cache *
++struct sh_frame_cache *
+ sh_frame_cache (struct frame_info *this_frame, void **this_cache)
+ {
+   struct gdbarch *gdbarch = get_frame_arch (this_frame);
+@@ -1915,9 +1902,9 @@ sh_frame_cache (struct frame_info *this_frame, void **this_cache)
+   return cache;
+ }
+ 
+-static struct value *
+-sh_frame_prev_register (struct frame_info *this_frame,
+-			void **this_cache, int regnum)
++struct value *
++sh_frame_prev_register (struct frame_info *this_frame, void **this_cache,
++			int regnum)
+ {
+   struct gdbarch *gdbarch = get_frame_arch (this_frame);
+   struct sh_frame_cache *cache = sh_frame_cache (this_frame, this_cache);
+@@ -1931,7 +1918,7 @@ sh_frame_prev_register (struct frame_info *this_frame,
+      the current frame.  Frob regnum so that we pull the value from
+      the correct place.  */
+   if (regnum == gdbarch_pc_regnum (gdbarch))
+-    regnum = PR_REGNUM;
++    regnum = PR_REGNUM; /* XXX: really? */
+ 
+   if (regnum < SH_NUM_REGS && cache->saved_regs[regnum] != -1)
+     return frame_unwind_got_memory (this_frame, regnum,
+@@ -2237,8 +2224,8 @@ sh_return_in_first_hidden_param_p (struct gdbarch *gdbarch,
+ static struct gdbarch *
+ sh_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
+ {
+-  struct gdbarch *gdbarch;
+   struct gdbarch_tdep *tdep;
++  struct gdbarch *gdbarch;
+ 
+   /* SH5 is handled entirely in sh64-tdep.c.  */
+   if (info.bfd_arch_info->mach == bfd_mach_sh5)
+@@ -2254,6 +2241,18 @@ sh_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
+   tdep = XCNEW (struct gdbarch_tdep);
+   gdbarch = gdbarch_alloc (&info, tdep);
+ 
++  /* General-purpose registers.  */
++  tdep->gregset = NULL;
++  tdep->gregset_reg_offset = NULL;
++  tdep->gregset_num_regs = 23;
++  tdep->sizeof_gregset = 0;
++
++  /* Floating-point registers.  */
++  tdep->fpregset = NULL;
++  tdep->sizeof_fpregset = 34*4;
++
++  tdep->jb_pc_offset = -1;
++
+   set_gdbarch_short_bit (gdbarch, 2 * TARGET_CHAR_BIT);
+   set_gdbarch_int_bit (gdbarch, 4 * TARGET_CHAR_BIT);
+   set_gdbarch_long_bit (gdbarch, 4 * TARGET_CHAR_BIT);
+@@ -2404,10 +2403,11 @@ sh_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
+       break;
+     }
+ 
++  dwarf2_append_unwinders (gdbarch);
++
+   /* Hook in ABI-specific overrides, if they have been registered.  */
+   gdbarch_init_osabi (info, gdbarch);
+ 
+-  dwarf2_append_unwinders (gdbarch);
+   frame_unwind_append_unwinder (gdbarch, &sh_stub_unwind);
+   frame_unwind_append_unwinder (gdbarch, &sh_frame_unwind);
+ 
+diff --git a/gdb/sh-tdep.h b/gdb/sh-tdep.h
+index fc671a5..699f59f 100644
+--- a/gdb/sh-tdep.h
++++ b/gdb/sh-tdep.h
+@@ -21,6 +21,12 @@
+ 
+ /* Contributed by Steve Chamberlain sac@cygnus.com.  */
+ 
++struct frame_info;
++struct gdbarch;
++struct reggroup;
++struct regset;
++struct regcache;
++
+ /* Registers for all SH variants.  Used also by sh3-rom.c.  */
+ enum
+   {
+@@ -29,6 +35,7 @@ enum
+     ARG0_REGNUM = 4,
+     ARGLAST_REGNUM = 7,
+     FP_REGNUM = 14,
++    SP_REGNUM = 15,
+     PC_REGNUM = 16,
+     PR_REGNUM = 17,
+     GBR_REGNUM = 18,
+@@ -81,6 +88,24 @@ enum
+     FV0_REGNUM = 76,
+     FV_LAST_REGNUM = 79
+   };
++#define SH_NUM_REGS 67
++
++struct sh_frame_cache
++{
++  /* Base address.  */
++  CORE_ADDR base;
++  LONGEST sp_offset;
++  CORE_ADDR pc;
++
++  /* Flag showing that a frame has been created in the prologue code. */
++  int uses_fp;
++
++  /* Saved registers.  */
++  CORE_ADDR saved_regs[SH_NUM_REGS];
++  CORE_ADDR saved_sp;
++};
++
++extern struct sh_frame_cache *sh_frame_cache (struct frame_info *next_frame, void **this_cache);
+ 
+ /* This structure describes a register in a core-file.  */
+ struct sh_corefile_regmap
+@@ -89,8 +114,32 @@ struct sh_corefile_regmap
+   unsigned int offset;
+ };
+ 
++/* sh architecture specific information.  */
+ struct gdbarch_tdep
+ {
++  /* General-purpose registers.  */
++  struct regset *gregset;
++  int *gregset_reg_offset;
++  int gregset_num_regs;
++  size_t sizeof_gregset;
++
++  /* Floating-point registers.  */
++  struct regset *fpregset;
++  size_t sizeof_fpregset;
++
++  /* Offset of saved PC in jmp_buf.  */
++  int jb_pc_offset;
++
++  /* Detect sigtramp.  */
++  int (*sigtramp_p) (struct frame_info *);
++
++  /* Get address of sigcontext for sigtramp.  */
++  CORE_ADDR (*sigcontext_addr) (struct frame_info *);
++
++  /* Offset of registers in `struct sigcontext'.  */
++  int *sc_reg_offset;
++  int sc_num_regs;
++
+   /* Non-NULL when debugging from a core file.  Provides the offset
+      where each general-purpose register is stored inside the associated
+      core file section.  */
+diff --git a/gdb/testsuite/gdb.asm/asm-source.exp b/gdb/testsuite/gdb.asm/asm-source.exp
+index 8854af0..ef44682 100644
+--- a/gdb/testsuite/gdb.asm/asm-source.exp
++++ b/gdb/testsuite/gdb.asm/asm-source.exp
+@@ -113,6 +113,11 @@ switch -glob -- [istarget] {
+             append link-flags " -m elf32ppc"
+         }
+     }
++    "sh*-linux*" {
++        set asm-arch sh-linux
++        set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
++	set debug-flags "-gdwarf-2"
++    }
+     "sh*-*-*" {
+         set asm-arch sh
+ 	set debug-flags "-gdwarf-2"
+diff --git a/gdb/testsuite/gdb.asm/sh.inc b/gdb/testsuite/gdb.asm/sh.inc
+index a4a5fc5..89efed7 100644
+--- a/gdb/testsuite/gdb.asm/sh.inc
++++ b/gdb/testsuite/gdb.asm/sh.inc
+@@ -40,9 +40,8 @@
+ 	mov.l   .Lconst\@,r1
+ 	bra	.Lafterconst\@
+ 	nop
+-	nop
+-.Lconst\@:
+ 	.align	2
++.Lconst\@:
+ 	.long	\subr
+ 	.align	1
+ .Lafterconst\@:
+diff --git a/gdb/testsuite/gdb.base/annota1.c b/gdb/testsuite/gdb.base/annota1.c
+index 424e1b8..0de2e7b 100644
+--- a/gdb/testsuite/gdb.base/annota1.c
++++ b/gdb/testsuite/gdb.base/annota1.c
+@@ -1,6 +1,9 @@
+ #include <stdio.h>
+ #include <signal.h>
+ 
++#ifdef __sh__
++#define signal(a,b)    /* Signals not supported on this target - make them go away */
++#endif
+ 
+ void
+ handle_USR1 (int sig)
+diff --git a/gdb/testsuite/gdb.base/annota3.c b/gdb/testsuite/gdb.base/annota3.c
+index 424e1b8..952aaf2 100644
+--- a/gdb/testsuite/gdb.base/annota3.c
++++ b/gdb/testsuite/gdb.base/annota3.c
+@@ -1,6 +1,10 @@
+ #include <stdio.h>
+ #include <signal.h>
+ 
++#ifdef __sh__
++#define signal(a,b)    /* Signals not supported on this target - make them go away */
++#endif
++
+ 
+ void
+ handle_USR1 (int sig)
+diff --git a/gdb/testsuite/gdb.base/sigall.c b/gdb/testsuite/gdb.base/sigall.c
+index 81f3b08..1574b2d 100644
+--- a/gdb/testsuite/gdb.base/sigall.c
++++ b/gdb/testsuite/gdb.base/sigall.c
+@@ -1,6 +1,9 @@
+ #include <signal.h>
+ #include <unistd.h>
+ 
++#ifdef __sh__
++#define signal(a,b)    /* Signals not supported on this target - make them go away */
++#endif
+ 
+ /* Signal handlers, we set breakpoints in them to make sure that the
+    signals really get delivered.  */
+diff --git a/gdb/testsuite/gdb.base/signals.c b/gdb/testsuite/gdb.base/signals.c
+index 7566068..1205a9b 100644
+--- a/gdb/testsuite/gdb.base/signals.c
++++ b/gdb/testsuite/gdb.base/signals.c
+@@ -3,6 +3,10 @@
+ #include <signal.h>
+ #include <unistd.h>
+ 
++#ifdef __sh__
++#define signal(a,b)    /* Signals not supported on this target - make them go away */
++#define alarm(a)       /* Ditto for alarm() */
++#endif
+ 
+ static int count = 0;
+ 
+-- 
+2.1.4
+
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/force-readline-static.patch b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/force-readline-static.patch
new file mode 100644
index 000000000..d34ee8cee
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb/force-readline-static.patch
@@ -0,0 +1,37 @@
+If gdb is configured with --disable-static then this is dutifully passed to
+readline which then disables libreadline.a, which causes a problem when gdb
+tries to link against that.
+
+To ensure that readline always builds static libraries, pass --enable-static to
+the sub-configure.
+
+Upstream-Status: Pending
+Signed-off-by: Ross Burton <ross.burton@intel.com>
+
+diff --git a/Makefile.def b/Makefile.def
+index 4394188..05c661a 100644
+--- a/Makefile.def
++++ b/Makefile.def
+@@ -100,7 +100,8 @@ host_modules= { module= libiconv;
+ 		missing= install-html;
+ 		missing= install-info; };
+ host_modules= { module= m4; };
+-host_modules= { module= readline; };
++host_modules= { module= readline;
++                extra_configure_flags='--enable-static';};
+ host_modules= { module= sid; };
+ host_modules= { module= sim; };
+ host_modules= { module= texinfo; no_install= true; };
+diff --git a/Makefile.in b/Makefile.in
+index 61e0ab6..837f36e 100644
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -24971,7 +24971,7 @@ configure-readline:
+ 	  $$s/$$module_srcdir/configure \
+ 	  --srcdir=$${topdir}/$$module_srcdir \
+ 	  $(HOST_CONFIGARGS) --build=${build_alias} --host=${host_alias} \
+-	  --target=${target_alias}  \
++	  --target=${target_alias} --enable-static \
+ 	  || exit 1
+ @endif readline
+ 
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb_7.10.1.bb b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb_7.10.1.bb
new file mode 100644
index 000000000..f897e1213
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-devtools/gdb/gdb_7.10.1.bb
@@ -0,0 +1,20 @@
+require gdb.inc
+require gdb-${PV}.inc
+
+inherit python-dir
+
+do_configure_prepend() {
+	if [ -n "${@bb.utils.contains('PACKAGECONFIG', 'python', 'python', '', d)}" ]; then
+		cat > ${WORKDIR}/python << EOF
+#!/bin/sh
+case "\$2" in
+	--includes) echo "-I${STAGING_INCDIR}/${PYTHON_DIR}/" ;;
+	--ldflags) echo "-Wl,-rpath-link,${STAGING_LIBDIR}/.. -Wl,-rpath,${libdir}/.. -lpthread -ldl -lutil -lm -lpython${PYTHON_BASEVERSION}" ;;
+	--exec-prefix) echo "${exec_prefix}" ;;
+	*) exit 1 ;;
+esac
+exit 0
+EOF
+		chmod +x ${WORKDIR}/python
+	fi
+}