Use fixed architecture names in toolchain wrapper

`uname -m` seems to not be available in some sandboxed environments. This error only occurred after an hour of CI tests on the main opentitan repo.

Author: troibe

toolchains/lowrisc_rv32imcb/BUILD.bazel

@@ -23,7 +23,7 @@ HOST_ARCHS = [
 [filegroup(
     name = "compiler_components" + host_arch,
     srcs = [
-        "//toolchains/lowrisc_rv32imcb/wrappers:all",
+        "//toolchains/lowrisc_rv32imcb/wrappers_{}:all".format(host_arch),
         "@lowrisc_rv32imcb_{}_files//:all".format(host_arch),
     ],
 ) for host_arch in HOST_ARCHS]
@@ -43,15 +43,15 @@ HOST_ARCHS = [
         },
         substitutions = device.substitutions,
         tools = {
-            "ar": "wrappers/ar",
-            "cpp": "wrappers/cpp",
-            "gcc": "wrappers/clang",
-            "gcov": "wrappers/gcov",
-            "ld": "wrappers/ld",
-            "nm": "wrappers/nm",
-            "objcopy": "wrappers/objcopy",
-            "objdump": "wrappers/objdump",
-            "strip": "wrappers/strip",
+            "ar": "wrappers_{}/ar".format(host_arch),
+            "cpp": "wrappers_{}/cpp".format(host_arch),
+            "gcc": "wrappers_{}/clang".format(host_arch),
+            "gcov": "wrappers_{}/gcov".format(host_arch),
+            "ld": "wrappers_{}/ld".format(host_arch),
+            "nm": "wrappers_{}/nm".format(host_arch),
+            "objcopy": "wrappers_{}/objcopy".format(host_arch),
+            "objdump": "wrappers_{}/objdump".format(host_arch),
+            "strip": "wrappers_{}/strip",
         },
     ) for device in DEVICES]
     for host_arch in HOST_ARCHS

toolchains/lowrisc_rv32imcb/wrappers/BUILD renamed to toolchains/lowrisc_rv32imcb/wrappers_aarch64/BUILD

@@ -4,7 +4,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 PROG=${0##*/}
-TOOLCHAIN="lowrisc_rv32imcb_$(uname -m)_files"
+TOOLCHAIN="lowrisc_rv32imcb_aarch64_files"
 PREFIX="riscv32-unknown-elf"
 
 ARGS=()

toolchains/lowrisc_rv32imcb/wrappers/ar renamed to toolchains/lowrisc_rv32imcb/wrappers_aarch64/ar

@@ -0,0 +1,19 @@
+package(default_visibility = ["//visibility:public"])
+
+exports_files(glob(["*"]))
+
+filegroup(
+    name = "all",
+    srcs = [
+        "ar",
+        "clang",
+        "cpp",
+        "gcc",
+        "gcov",
+        "ld",
+        "nm",
+        "objcopy",
+        "objdump",
+        "strip",
+    ],
+)

toolchains/lowrisc_rv32imcb/wrappers/clang renamed to toolchains/lowrisc_rv32imcb/wrappers_aarch64/clang

@@ -0,0 +1 @@
+driver.sh

toolchains/lowrisc_rv32imcb/wrappers/cpp renamed to toolchains/lowrisc_rv32imcb/wrappers_aarch64/cpp

@@ -0,0 +1 @@
+driver.sh

toolchains/lowrisc_rv32imcb/wrappers/driver.sh renamed to toolchains/lowrisc_rv32imcb/wrappers_aarch64/driver.sh

@@ -0,0 +1 @@
+driver.sh

toolchains/lowrisc_rv32imcb/wrappers/gcc renamed to toolchains/lowrisc_rv32imcb/wrappers_aarch64/gcc

@@ -0,0 +1,16 @@
+#!/bin/bash --norc
+# Copyright lowRISC contributors.
+# Licensed under the Apache License, Version 2.0, see LICENSE for details.
+# SPDX-License-Identifier: Apache-2.0
+
+PROG=${0##*/}
+TOOLCHAIN="lowrisc_rv32imcb_x86_64_files"
+PREFIX="riscv32-unknown-elf"
+
+ARGS=()
+POSTARGS=()
+
+exec "external/${TOOLCHAIN}/bin/${PREFIX}-${PROG}" \
+    "${ARGS[@]}" \
+    "$@"\
+    "${POSTARGS[@]}"

toolchains/lowrisc_rv32imcb/wrappers/gcov renamed to toolchains/lowrisc_rv32imcb/wrappers_aarch64/gcov

@@ -0,0 +1 @@
+driver.sh

toolchains/lowrisc_rv32imcb/wrappers/ld renamed to toolchains/lowrisc_rv32imcb/wrappers_aarch64/ld

@@ -0,0 +1 @@
+driver.sh

toolchains/lowrisc_rv32imcb/wrappers/nm renamed to toolchains/lowrisc_rv32imcb/wrappers_aarch64/nm

@@ -0,0 +1 @@
+driver.sh

toolchains/lowrisc_rv32imcb/wrappers/objcopy renamed to toolchains/lowrisc_rv32imcb/wrappers_aarch64/objcopy

@@ -0,0 +1 @@
+driver.sh

toolchains/lowrisc_rv32imcb/wrappers/objdump renamed to toolchains/lowrisc_rv32imcb/wrappers_aarch64/objdump

@@ -0,0 +1 @@
+driver.sh

toolchains/lowrisc_rv32imcb/wrappers/strip renamed to toolchains/lowrisc_rv32imcb/wrappers_aarch64/strip

@@ -0,0 +1 @@
+driver.sh

toolchains/lowrisc_rv32imcb/wrappers_x86_64/BUILD

@@ -0,0 +1 @@
+driver.sh