On 2022-12-08 06:26, Sundeep KOKKONDA via lists.openembedded.org wrote:
Rust code compilation on qemu failed with with below error.
error: Error loading target specification: Could not find specification for target
"x86_64-poky-linux-gnu". Run `rustc --print target-list` for a list of built-in
targets.
This patch fix the issue by adding the missing json file to the image.
Signed-off-by: Sundeep KOKKONDA <[email protected]>
---
meta/recipes-devtools/rust/files/target.json | 39 ++++++++++++++++++++
When I fixed this manually, I just copied this file from:
tmp/work/core2-64-poky-linux/rust/1.65.0-r0/rustc-1.65.0-src/src/test/run-make-fulldeps/rustdoc-target-spec-json-path/target.json
so I'm puzzled about why you didn't take that file, or better still a
non-test source of that file,
and perhaps sed out the 'has-elf-tls' line that generates the warning.
Also, this looks like it would only work for x86-64 due to:
data-layout":
+"e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128",
Perhaps the target.json isn't really what's needed since I
I don't see such a file in my desktop install that I installed using rustup.
Back to the drawing board....
Oh, in the rust git repo:
$ grep -B 4 -A 2 target.json RELEASES.md
Compiler
-----------------------
- [Rustc will now search for custom JSON targets in
`/lib/rustlib/<target-triple>/target.json` where `/` is the "sysroot"
directory.][83800] You can find your sysroot directory by running
`rustc --print sysroot`.
so maybe looking at the commit log for that change will get you heading
in the right direction.
../Randy
meta/recipes-devtools/rust/rust.inc | 9 +++++
meta/recipes-devtools/rust/rust_1.65.0.bb | 2 +
3 files changed, 50 insertions(+)
create mode 100644 meta/recipes-devtools/rust/files/target.json
diff --git a/meta/recipes-devtools/rust/files/target.json
b/meta/recipes-devtools/rust/files/target.json
new file mode 100644
index 0000000000..69dbbaa9f9
--- /dev/null
+++ b/meta/recipes-devtools/rust/files/target.json
@@ -0,0 +1,39 @@
+{
+ "arch": "x86_64",
+ "cpu": "x86-64",
+ "crt-static-respected": true,
+ "data-layout":
+"e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128",
+ "dynamic-linking": true,
+ "env": "gnu",
+ "executables": true,
+ "has-rpath": true,
+ "linker-is-gnu": true,
+ "llvm-target": "x86_64-unknown-linux-gnu",
+ "max-atomic-width": 64,
+ "os": "linux",
+ "position-independent-executables": true,
+ "pre-link-args": {
+ "gcc": [
+ "-m64"
+ ]
+ },
+ "relro-level": "full",
+ "stack-probes": {
+ "kind": "inline-or-call",
+ "min-llvm-version-for-inline": [
+ 11,
+ 0,
+ 1
+ ]
+ },
+ "supported-sanitizers": [
+ "address",
+ "leak",
+ "memory",
+ "thread"
+ ],
+ "target-family": "unix",
+ "target-pointer-width": "64"
+}
+
diff --git a/meta/recipes-devtools/rust/rust.inc
b/meta/recipes-devtools/rust/rust.inc
index 956301023a..75473f967b 100644
--- a/meta/recipes-devtools/rust/rust.inc
+++ b/meta/recipes-devtools/rust/rust.inc
@@ -13,6 +13,10 @@ DEPENDS:append:class-nativesdk = " nativesdk-rust-llvm"
S = "${RUSTSRC}"
+SRC_URI += "\
+ file://target.json \
+"
+
export FORCE_CRATE_HASH="${BB_TASKHASH}"
RUST_ALTERNATE_EXE_PATH ?= "${STAGING_LIBDIR}/llvm-rust/bin/llvm-config"
@@ -217,3 +221,8 @@ rust_do_install () {
do_install () {
rust_do_install
}
+
+FILE_${PN} += " \
+ ${WORKDIR}/target.json \
+"
+
diff --git a/meta/recipes-devtools/rust/rust_1.65.0.bb
b/meta/recipes-devtools/rust/rust_1.65.0.bb
index dbf74cec8f..afef72e45c 100644
--- a/meta/recipes-devtools/rust/rust_1.65.0.bb
+++ b/meta/recipes-devtools/rust/rust_1.65.0.bb
@@ -68,6 +68,8 @@ rust_do_install:class-target() {
chrpath -r "\$ORIGIN/../lib" ${D}${bindir}/$i
done
+ cp ${WORKDIR}/target.json ${D}${libdir}/rustlib/${RUST_TARGET_SYS}
+
chown root:root ${D}/ -R
rm ${D}${libdir}/rustlib/uninstall.sh
rm ${D}${libdir}/rustlib/install.log
--
# Randy MacLeod
# Wind River Linux
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