rust: Generate per recipe target configuration files

Instead of generating target configuration files centrally and often getting
it wrong, or having trouble finding the right set, generate them dynamically
from the bbclass into WORKDIR per recipe.

(From OE-Core rev: 9160e4a37561d8ac882057450a818621bec13bed)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 9 insertions, 9 deletions

diff --git a/meta/classes/rust-target-config.bbclass b/meta/classes/rust-target-config.bbclass
index ab177cf59f..bc6bd77abb 100644
--- a/meta/classes/rust-target-config.bbclass
+++ b/meta/classes/rust-target-config.bbclass
@@ -292,6 +292,7 @@ def rust_gen_target(d, thing, wd, arch):
     import json
     sys = d.getVar('{}_SYS'.format(thing))
     prefix = d.getVar('{}_PREFIX'.format(thing))
+    rustsys = d.getVar('RUST_{}_SYS'.format(thing))
 
     abi = None
     cpu = "generic"
@@ -318,13 +319,9 @@ def rust_gen_target(d, thing, wd, arch):
     features = features or d.getVarFlag('FEATURES', arch_abi) or ""
     features = features.strip()
 
-    llvm_target = d.getVar('RUST_TARGET_SYS')
-    if thing == "BUILD":
-        llvm_target = d.getVar('RUST_HOST_SYS')
-
     # build tspec
     tspec = {}
-    tspec['llvm-target'] = llvm_target
+    tspec['llvm-target'] = rustsys
     tspec['data-layout'] = d.getVarFlag('DATA_LAYOUT', arch_abi)
     if tspec['data-layout'] is None:
         bb.fatal("No rust target defined for %s" % arch_abi)
@@ -358,7 +355,7 @@ def rust_gen_target(d, thing, wd, arch):
     tspec['panic-strategy'] = d.getVar("RUST_PANIC_STRATEGY")
 
     # write out the target spec json file
-    with open(wd + sys + '.json', 'w') as f:
+    with open(wd + rustsys + '.json', 'w') as f:
         json.dump(tspec, f, indent=4)
 
 # These are accounted for in tmpdir path names so don't need to be in the task sig
@@ -366,10 +363,13 @@ rust_gen_target[vardepsexclude] += "ABIEXTENSION llvm_cpu"
 
 do_rust_gen_targets[vardeps] += "DATA_LAYOUT TARGET_ENDIAN TARGET_POINTER_WIDTH TARGET_C_INT_WIDTH MAX_ATOMIC_WIDTH FEATURES"
 
-RUST_TARGETGENS = "BUILD"
+RUST_TARGETS_DIR = "${WORKDIR}/rust-targets/"
+export RUST_TARGET_PATH = "${RUST_TARGETS_DIR}"
+
+RUST_TARGETGENS = "BUILD HOST TARGET"
 
 python do_rust_gen_targets () {
-    wd = d.getVar('WORKDIR') + '/targets/'
+    wd = d.getVar('RUST_TARGETS_DIR')
     # Order of BUILD, HOST, TARGET is important in case the files overwrite, most specific last
     rust_gen_target(d, 'BUILD', wd, d.getVar('BUILD_ARCH'))
     if "HOST" in d.getVar("RUST_TARGETGENS"):
@@ -379,5 +379,5 @@ python do_rust_gen_targets () {
 }
 
 addtask rust_gen_targets after do_patch before do_compile
-do_rust_gen_targets[dirs] += "${WORKDIR}/targets"
+do_rust_gen_targets[dirs] += "${RUST_TARGETS_DIR}"