[Tizen] Strip unit test executables to save CI storage (#34810)

* Add support stripping all symbols from executables

* Compile Tizen with -fPIC and -pie

* Re-enable Tizen QEMU workflow

.github/workflows/qemu.yaml

@@ -27,7 +27,7 @@ concurrency:
 
 env:
     CHIP_NO_LOG_TIMESTAMPS: true
-    
+
 jobs:
 
     qemu-esp32:
@@ -75,12 +75,7 @@ jobs:
         name: Tizen
 
         runs-on: ubuntu-latest
-        # NOTE: job temporarely disabled as it seems flaky. The flake does not result in usable
-        #       logs so the current theory is that we run out of space. This is unusual as
-        #       larger docker images succeed at bootstrap, however it needs more investigation
-        #       to detect an exact/real root cause.
-        if: false
-        # if: github.actor != 'restyled-io[bot]'
+        if: github.actor != 'restyled-io[bot]'
 
         container:
             image: ghcr.io/project-chip/chip-build-tizen-qemu:54

build/config/compiler/BUILD.gn

@@ -334,7 +334,11 @@ config("warnings_third_party") {
 }
 
 config("symbols_default") {
-  cflags = [ "-g${symbol_level}" ]
+  if (strip_symbols) {
+    cflags = [ "-s" ]
+  } else {
+    cflags = [ "-g${symbol_level}" ]
+  }
 }
 
 config("std_default") {

build/config/compiler/compiler.gni

@@ -30,11 +30,11 @@ declare_args() {
   symbol_level = 2
 
   # Enable position independent code (-fPIC).
-  enable_pic =
-      current_os == "linux" || current_os == "mac" || current_os == "android"
+  enable_pic = current_os == "linux" || current_os == "mac" ||
+               current_os == "android" || current_os == "tizen"
 
   # Enable position independent executables (-pie).
-  enable_pie = current_os == "linux"
+  enable_pie = current_os == "linux" || current_os == "tizen"
 
   # Remove unwind tables from the binary to save space.
   exclude_unwind_tables = current_os != "android"
@@ -48,6 +48,9 @@ declare_args() {
   # enable libfuzzer
   is_libfuzzer = false
 
+  # Remove all symbol table and relocation information from the binary.
+  strip_symbols = false
+
   # Generate code coverage analysis artifacts when enabled.
   use_coverage = false
 

scripts/build/builders/tizen.py

@@ -117,6 +117,10 @@ def __init__(self,
 
         if app == TizenApp.TESTS:
             self.extra_gn_options.append('chip_build_tests=true')
+            # Tizen test driver creates ISO image with all unit test files. So,
+            # it uses twice as much space as regular build. Due to CI storage
+            # limitations, we need to strip debug symbols from executables.
+            self.extra_gn_options.append('strip_symbols=true')
             self.build_command = 'check'
 
         if not enable_ble:

third_party/tizen/tizen_sdk.gni

@@ -189,7 +189,7 @@ template("tizen_qemu_mkisofs") {
       "mkisofs",
       "-input-charset=default",
       "-VCHIP",  # Volume ID = CHIP
-      "-JRU",  # Joliet + Rock Ridge with untranslated filenames
+      "-JrU",  # Joliet + Rock Ridge with untranslated filenames
     ]
 
     # Exclude files from the ISO image which might otherwise be included