Merge pull request #1799 from mat-hek/mf/allow-disable-dumps

Add AVM_PRINT_PROCESS_CRASH_DUMPS option

These changes are made under both the "Apache 2.0" and the "GNU Lesser General
Public License 2.1 or later" license terms (dual license).

SPDX-License-Identifier: Apache-2.0 OR LGPL-2.1-or-later

Author: bettio

CHANGELOG.md

@@ -57,6 +57,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added mock implementation for `current_stacktrace` in `process_info`
 - Added `erlang:list_to_bitstring`
 - Reimplemented `lists:keyfind`, `lists:keymember` and `lists:member` as NIFs
+- Added `AVM_PRINT_PROCESS_CRASH_DUMPS` option
 
 ### Changed
 

CMakeLists.txt

@@ -39,6 +39,7 @@ option(AVM_RELEASE "Build an AtomVM release" OFF)
 option(AVM_CREATE_STACKTRACES "Create stacktraces" ON)
 option(AVM_BUILD_RUNTIME_ONLY "Only build the AtomVM runtime" OFF)
 option(COVERAGE "Build for code coverage" OFF)
+option(AVM_PRINT_PROCESS_CRASH_DUMPS "Print crash reports when processes die with non-standard reasons" ON)
 
 # JIT & execution of precompiled code
 if(NOT Erlang_VERSION VERSION_GREATER_EQUAL "23")

src/libAtomVM/CMakeLists.txt

@@ -187,6 +187,10 @@ if(HAVE_PLATFORM_ATOMIC_H)
     target_compile_definitions(libAtomVM PUBLIC HAVE_PLATFORM_ATOMIC_H)
 endif()
 
+if (AVM_PRINT_PROCESS_CRASH_DUMPS)
+    target_compile_definitions(libAtomVM PUBLIC AVM_PRINT_PROCESS_CRASH_DUMPS)
+endif()
+
 # Platforms that run select in a task must set this option
 if(AVM_SELECT_IN_TASK)
     target_compile_definitions(libAtomVM PUBLIC AVM_SELECT_IN_TASK)

src/libAtomVM/opcodesswitch.h

@@ -7429,10 +7429,12 @@ HOT_FUNC int scheduler_entry_point(GlobalContext *glb)
             }
         }
 
+#ifdef AVM_PRINT_PROCESS_CRASH_DUMPS
         // Do not print crash dump if reason is normal or shutdown.
         if (x_regs[0] != LOWERCASE_EXIT_ATOM || (x_regs[1] != NORMAL_ATOM && x_regs[1] != SHUTDOWN_ATOM)) {
             context_dump(ctx);
         }
+#endif
 
         if (x_regs[0] == LOWERCASE_EXIT_ATOM) {
             ctx->exit_reason = x_regs[1];