# Dynamic adaptations
# While `platform` enable complex toolchains, they are statically applied
# For a dynamic adaptsation of the compilation, the generated Makefile should check and adapt things itself
+ makefile.write "\n\n"
# Check and adapt the targeted system
makefile.write("uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')\n")
- makefile.write("ifeq ($(uname_S),Darwin)\n")
- # remove -lunwind since it is already included on macosx
- makefile.write("\tNEED_LIBUNWIND :=\n")
- makefile.write("endif\n\n")
# Check and adapt for the compiler used
# clang need an additionnal `-Qunused-arguments`
makefile.write("clang_check := $(shell sh -c '$(CC) -v 2>&1 | grep -q clang; echo $$?')\nifeq ($(clang_check), 0)\n\tCFLAGS += -Qunused-arguments\nendif\n")
- makefile.write("ifdef NEED_LIBUNWIND\n\tLDLIBS += -lunwind\nendif\n")
+ if platform.supports_libunwind then
+ makefile.write """
+ # Check and include lib-unwind in a portable way
+ ifneq ($(uname_S),Darwin)
+ # already included on macosx, but need to get the correct flags in other supported platforms.
+ ifeq ($(shell pkg-config --exists 'libunwind'; echo $$?), 0)
+ LDLIBS += `pkg-config --libs libunwind`
+ CFLAGS += `pkg-config --cflags libunwind`
+ else
+ $(warning "[_] stack-traces disabled. Please install libunwind-dev.")
+ CFLAGS += -D NO_STACKTRACE
+ endif
+ endif
+
+"""
+ else
+ makefile.write("CFLAGS += -D NO_STACKTRACE\n\n")
+ end
makefile.write("all: {outpath}\n")
if outpath != real_outpath then
var no_main = platform.no_main or modelbuilder.toolcontext.opt_no_main.value
if platform.supports_libunwind then
+ v.add_decl("#ifndef NO_STACKTRACE")
v.add_decl("#define UNW_LOCAL_ONLY")
v.add_decl("#include <libunwind.h>")
v.add_decl("#include \"c_functions_hash.h\"")
+ v.add_decl("#endif")
end
v.add_decl("int glob_argc;")
v.add_decl("char **glob_argv;")
v.add_decl("static void show_backtrace(void) \{")
if platform.supports_libunwind then
+ v.add_decl("#ifndef NO_STACKTRACE")
v.add_decl("char* opt = getenv(\"NIT_NO_STACK\");")
v.add_decl("unw_cursor_t cursor;")
v.add_decl("if(opt==NULL)\{")
v.add_decl("PRINT_ERROR(\"-------------------------------------------------\\n\");")
v.add_decl("free(procname);")
v.add_decl("\}")
+ v.add_decl("#endif /* NO_STACKTRACE */")
end
v.add_decl("\}")