fix: truncate module name in partition log filename, skip existing filegroups

Long module names (e.g. bp_multi_top parameters) exceed filesystem
path limits. Truncate to 80 chars in the log filename.

Also skip creating filegroups in orfs_design() when they already
exist in the BUILD.bazel (fixes riscv32i-mock-sram conflict).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>

Author: oharboe

bazel/orfs.bzl

@@ -52,19 +52,21 @@ def orfs_design(platform = None, design = None):
     )
 
     # Create filegroups for wildcard source patterns (e.g. ADDITIONAL_LEFS)
+    existing_rules = native.existing_rules()
     for fg_name, fg_glob in [
         ("lef", ["*.lef"]),
         ("lib", ["*.lib"]),
         ("gds", ["*.gds.gz"]),
         ("verilog", ["*.v", "*.sv"]),
     ]:
-        srcs = native.glob(fg_glob, allow_empty = True)
-        if srcs:
-            native.filegroup(
-                name = fg_name,
-                srcs = srcs,
-                visibility = ["//visibility:public"],
-            )
+        if fg_name not in existing_rules:
+            srcs = native.glob(fg_glob, allow_empty = True)
+            if srcs:
+                native.filegroup(
+                    name = fg_name,
+                    srcs = srcs,
+                    visibility = ["//visibility:public"],
+                )
 
     pkg = native.package_name()  # e.g., "flow/designs/asap7/gcd"
     parts = pkg.split("/")

flow/scripts/synth_partition.sh

@@ -57,12 +57,14 @@ for module in "${MY_MODULES[@]}"; do
   # SYNTH_CHECKPOINT: skip coarse synth + keep_hierarchy (already done)
   # SYNTH_BLACKBOXES: all other kept modules are blackboxed
   # DESIGN_NAME: override to this module
+  # Truncate module name in log filename to avoid filesystem limits
+  log_module="${module:0:80}"
   SYNTH_CHECKPOINT="$RESULTS_DIR/1_1_yosys_keep.rtlil" \
   SYNTH_BLACKBOXES="$BLACKBOXES" \
   DESIGN_NAME="$module" \
     "$SCRIPTS_DIR/synth.sh" \
     "$SCRIPTS_DIR/synth.tcl" \
-    "$LOG_DIR/1_2_yosys_partition_${PARTITION_ID}_${module}.log"
+    "$LOG_DIR/1_2_yosys_partition_${PARTITION_ID}_${log_module}.log"
 
   # Append this module's netlist to partition output
   cat "$RESULTS_DIR/1_2_yosys.v" >> "$OUTPUT"