ESP32 Forum

Hi,

I am using ESP32 SDK to write a sample app, using esp-idf + esp-idf-template, but I got error like

/home/dev/esp/myapp/main/libsample.a(Json.cxx.o): In function `rapidjson::CrtAllocator::Malloc(unsigned int)':
Json.cxx:(.text._ZN9rapidjson12CrtAllocator6MallocEj[rapidjson::CrtAllocator::Malloc(unsigned int)]+0xf): dangerous relocation: call8: call target out of range: malloc

What I have done in the component.mk is that
CXXFLAGS += -std=c++11
COMPONENT_ADD_LDFLAGS += -lsample -L$(COMPONENT_PATH)

I found the compiler option "-mlongcalls" had already been set in project.mk
COMMON_FLAGS = \
-ffunction-sections -fdata-sections \
-fstrict-volatile-bitfields \
-mlongcalls

What is the solution to fix this call8 error? Anyone can give your hints? thanks.

BR
Hacr

What is the -lsample library and how it is compiled?

libsample.a is another library which I use xtensa-esp32-elf as cross compile tool to build and create a static library.

So it means you aren't using mlongcalls flag when compiling the source files for that library.
You should add -mlongcalls to your CFLAGS and CXXFLAGS at that stage.

Oh, great, I also find my mistake thanks!