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authorStafford Horne <shorne@gmail.com>2021-10-20 06:54:11 +0900
committerStafford Horne <shorne@gmail.com>2022-01-05 06:40:06 +0900
commit0c3c62ca7d9ff3bdacdd13e636bc858101e3e288 (patch)
tree83492797f96c54e17f75bc2d05d6bc40a535477f /sysdeps/or1k
parentd147259b5c35da2f7764e24997cb4fd216570427 (diff)
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or1k: Build Infrastructure
Here we define the minumum linux kernel version at 5.4.0, as that is the
long term support version where 32-bit architectures start to support
64-bit time API's.  The OpenRISC kernel had some bugs up until version 5.8
which caused issues with glibc fork/clone, they have been backported to
5.4 but not previous versions.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps/or1k')
-rw-r--r--sysdeps/or1k/Implies3
-rw-r--r--sysdeps/or1k/Makefile6
-rw-r--r--sysdeps/or1k/nofpu/Implies1
-rw-r--r--sysdeps/or1k/preconfigure33
4 files changed, 43 insertions, 0 deletions
diff --git a/sysdeps/or1k/Implies b/sysdeps/or1k/Implies
new file mode 100644
index 0000000000..387a0ca052
--- /dev/null
+++ b/sysdeps/or1k/Implies
@@ -0,0 +1,3 @@
+wordsize-32
+ieee754/dbl-64
+ieee754/flt-32
diff --git a/sysdeps/or1k/Makefile b/sysdeps/or1k/Makefile
new file mode 100644
index 0000000000..577d8d5234
--- /dev/null
+++ b/sysdeps/or1k/Makefile
@@ -0,0 +1,6 @@
+ASFLAGS-.os += -fPIC
+
+ifeq ($(subdir),elf)
+# Extra shared linker files to link only into dl-allobjs.so.
+sysdep-rtld-routines += dl-start
+endif
diff --git a/sysdeps/or1k/nofpu/Implies b/sysdeps/or1k/nofpu/Implies
new file mode 100644
index 0000000000..abcbadb25f
--- /dev/null
+++ b/sysdeps/or1k/nofpu/Implies
@@ -0,0 +1 @@
+ieee754/soft-fp
diff --git a/sysdeps/or1k/preconfigure b/sysdeps/or1k/preconfigure
new file mode 100644
index 0000000000..1cc7ce0399
--- /dev/null
+++ b/sysdeps/or1k/preconfigure
@@ -0,0 +1,33 @@
+#
+# This is free and unencumbered software released into the public domain.
+#
+# Anyone is free to copy, modify, publish, use, compile, sell, or
+# distribute this software, either in source code form or as a compiled
+# binary, for any purpose, commercial or non-commercial, and by any
+# means.
+#
+# In jurisdictions that recognize copyright laws, the author or authors
+# of this software dedicate any and all copyright interest in the
+# software to the public domain. We make this dedication for the benefit
+# of the public at large and to the detriment of our heirs and
+# successors. We intend this dedication to be an overt act of
+# relinquishment in perpetuity of all present and future rights to this
+# software under copyright law.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+#
+
+case "$machine" in
+or1k*)
+  base_machine=or1k
+  machine=or1k
+
+  with_fp_cond="defined __or1k_hard_float__"
+  ;;
+esac