Merge pull request #1448 from dinuxbg/master

Add PRU target configuration

config/arch/pru.in

@@ -0,0 +1,8 @@
+# PRU specific config options
+
+## no-package
+## select ARCH_SUPPORTS_8
+## select ARCH_DEFAULT_8
+##
+## help The TI PRU core, as defined by:
+## help     http://bbb.io/pru

config/comp_libs/gnuprumcu.in

@@ -0,0 +1,2 @@
+# gnuprumcu config file
+## depends on ARCH_PRU

config/kernel/linux.in

@@ -1,6 +1,6 @@
 # Linux kernel options
 
-## depends on !ARCH_AVR && !ARCH_MSP430 && !ARCH_MOXIE
+## depends on !ARCH_AVR && !ARCH_MSP430 && !ARCH_MOXIE && !ARCH_PRU
 ## select KERNEL_SUPPORTS_SHARED_LIBS
 
 ## help Build a toolchain targeting systems running Linux as a kernel.

packages/gnuprumcu/0.5.0/0001-HACK-Fix-paths-for-crosstool-ng.patch

@@ -0,0 +1,41 @@
+From b045b2c65e26153813abadc2d065afdd52612fb0 Mon Sep 17 00:00:00 2001
+From: Dimitar Dimitrov <dimitar@dinux.eu>
+Date: Fri, 15 Jan 2021 18:52:09 +0200
+Subject: [PATCH] HACK: Fix paths for crosstool-ng
+
+For some reason crosstool-ng modifies the default
+binutils/ld path for ldscripts. Align our respective
+path.
+
+Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>
+---
+ ldscripts/Makefile.am | 2 +-
+ ldscripts/Makefile.in | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/ldscripts/Makefile.am b/ldscripts/Makefile.am
+index 23c5903..b6984d5 100644
+--- a/ldscripts/Makefile.am
++++ b/ldscripts/Makefile.am
+@@ -47,4 +47,4 @@ dist_pru_DATA = \
+     pruelf-tda4vm.icssg1.tx_pru1.x
+ 
+ 
+-prudir = $(exec_prefix)/$(target_alias)/lib
++prudir = $(libdir)
+diff --git a/ldscripts/Makefile.in b/ldscripts/Makefile.in
+index b58975f..b7aecd2 100644
+--- a/ldscripts/Makefile.in
++++ b/ldscripts/Makefile.in
+@@ -300,7 +300,7 @@ dist_pru_DATA = \
+     pruelf-tda4vm.icssg1.tx_pru0.x \
+     pruelf-tda4vm.icssg1.tx_pru1.x
+ 
+-prudir = $(exec_prefix)/$(target_alias)/lib
++prudir = $(libdir)
+ all: all-am
+ 
+ .SUFFIXES:
+-- 
+2.20.1
+

packages/gnuprumcu/0.5.0/chksum

@@ -0,0 +1,4 @@
+md5 gnuprumcu-0.5.0.tar.gz ee6110995491dac1a834ca7045931391
+sha1 gnuprumcu-0.5.0.tar.gz 94eb2aeb88f5654fa041bed07c2fb7860af95047
+sha256 gnuprumcu-0.5.0.tar.gz 917043152188ad4626f888dbb620e816a523c0599f9a758230a7d687daf915af
+sha512 gnuprumcu-0.5.0.tar.gz cc3071913db9c364c2e3966ab580b703700c85a3d292e230b5536df45b54e0137dc1e83a2fae80947e3c1ad178e5b6b6d8319a3d576653b423178c443386bd17

packages/gnuprumcu/package.desc

@@ -0,0 +1,6 @@
+origin='dinux.eu'
+repository='git https://github.com/dinuxbg/gnuprumcu.git'
+bootstrap='autoreconf -vfi'
+relevantpattern='*.*.*'
+archive_formats='.tar.gz'
+mirrors='https://github.com/dinuxbg/gnuprumcu/releases/download/v${CT_GNUPRUMCU_VERSION}'

samples/pru/crosstool.config

@@ -0,0 +1,16 @@
+CT_CONFIG_VERSION="3"
+CT_ARCH_PRU=y
+CT_OMIT_TARGET_VENDOR=y
+# CT_DEMULTILIB is not set
+# CT_LIBC_NEWLIB_FVWRITE_IN_STREAMIO is not set
+# CT_LIBC_NEWLIB_UNBUF_STREAM_OPT is not set
+# CT_LIBC_NEWLIB_FSEEK_OPTIMIZATION is not set
+# CT_LIBC_NEWLIB_ATEXIT_DYNAMIC_ALLOC is not set
+# CT_LIBC_NEWLIB_MULTITHREAD is not set
+CT_LIBC_NEWLIB_EXTRA_SECTIONS=y
+# CT_LIBC_NEWLIB_WIDE_ORIENT is not set
+CT_LIBC_NEWLIB_NANO_MALLOC=y
+CT_LIBC_NEWLIB_NANO_FORMATTED_IO=y
+CT_CC_LANG_CXX=y
+CT_COMP_LIBS_GNUPRUMCU=y
+CT_COMP_TOOLS_MAKE=y

samples/pru/reported.by

@@ -0,0 +1,3 @@
+reporter_name="Dimitar Dimitrov"
+reporter_url="https://github.com/dinuxbg/gnupru"
+reporter_comment="PRU cross toolchain"

scripts/build/arch/pru.sh

@@ -0,0 +1,5 @@
+# Compute PRU-specific values
+
+CT_DoArchTupleValues() {
+    CT_TARGET_ARCH="${CT_ARCH}"
+}

scripts/build/companion_libs/400-gnuprumcu.sh

@@ -0,0 +1,89 @@
+# Build script for gnuprumcu
+
+do_gnuprumcu_get() { :; }
+do_gnuprumcu_extract() { :; }
+do_gnuprumcu_for_build() { :; }
+do_gnuprumcu_for_host() { :; }
+do_gnuprumcu_for_target() { :; }
+
+if [ "${CT_COMP_LIBS_GNUPRUMCU}" = "y" ]; then
+
+do_gnuprumcu_get() {
+    CT_Fetch GNUPRUMCU
+}
+
+do_gnuprumcu_extract() {
+    CT_ExtractPatch GNUPRUMCU
+}
+
+
+do_gnuprumcu_for_target() {
+    local -a gnuprumcu_opts
+
+    CT_DoStep INFO "Installing gnuprumcu for the target"
+    CT_mkdir_pushd "${CT_BUILD_DIR}/build-gnuprumcu-target-${CT_TARGET}"
+
+    gnuprumcu_opts+=( "destdir=${CT_SYSROOT_DIR}" )
+    gnuprumcu_opts+=( "host=${CT_HOST}" )
+
+    gnuprumcu_opts+=( "cflags=${CT_ALL_TARGET_CFLAGS}" )
+    gnuprumcu_opts+=( "prefix=${CT_PREFIX_DIR}" )
+    do_gnuprumcu_backend "${gnuprumcu_opts[@]}"
+
+    CT_Popd
+    CT_EndStep
+}
+
+
+# Build gnuprumcu
+#     Parameter     : description               : type      : default
+#     destdir       : out-of-tree install dir   : string    : /
+#     host          : machine to run on         : tuple     : (none)
+#     prefix        : prefix to install into    : dir       : (none)
+#     cflags        : cflags to use             : string    : (empty)
+#     ldflags       : ldflags to use            : string    : (empty)
+#     shared        : also buils shared lib     : bool      : n
+do_gnuprumcu_backend() {
+    local destdir="/"
+    local host
+    local prefix
+    local cflags
+    local ldflags
+    local shared
+    local -a extra_config
+    local arg
+
+    for arg in "$@"; do
+        eval "${arg// /\\ }"
+    done
+
+    CT_DoLog EXTRA "Configuring gnuprumcu"
+
+    CT_DoExecLog CFG                                        \
+    CC="${host}-gcc"                                        \
+    RANLIB="${host}-ranlib"                                 \
+    CFLAGS="${cflags}"                                      \
+    LDFLAGS="${ldflags}"                                    \
+    ${CONFIG_SHELL}                                         \
+    "${CT_SRC_DIR}/gnuprumcu/configure"                     \
+        --build=${CT_BUILD}                                 \
+        --host=${host}                                      \
+        --target=${CT_TARGET}                               \
+        --prefix="${prefix}"                                \
+        "${extra_config[@]}"
+
+    CT_DoLog EXTRA "Building gnuprumcu"
+    CT_DoExecLog ALL make
+
+    CT_DoLog EXTRA "Installing gnuprumcu"
+
+    # Guard against $destdir$prefix == //
+    # which is a UNC path on Cygwin/MSYS2
+    if [[ ${destdir} == / ]] && [[ ${prefix} == /* ]]; then
+        destdir=
+    fi
+
+    CT_DoExecLog ALL make instroot="${destdir}" install
+}
+
+fi # CT_COMP_LIBS_GNUPRUMCU