The title says it pretty nicely. I have a huge project that uses Makefile. How do I do a project-wide debug dumps (say, -fdump-tree-gimple) with GCC?
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The title says it pretty nicely. I have a huge project that uses Makefile. How do I do a project-wide debug dumps (say, -fdump-tree-gimple) with GCC?
You must pass
-fdump-tree-gimple(actually put any pass-name instead ofgimple, or evenallto dump all tree passes) to compilation string for every compiler execution (i.e. every time, you are calling gcc on source files or with-coption). Dump in formfilename.c.XXX.gimplefor any source file name will appear (XXX is a pass number like 003, depends on gcc version) in a working directory (often it is build folder). Also you may want to specify-dumpdirto collect all dumps in a single dump directory, this may be handy to avoid mess.How will you do it in you makefile — up to you. You may add it to
$CFLAGS(most common solution, because dumping is a part of compilation flags), or create special variable and pass it around, or hard-code it inside makefile.If you are building your project with lto, you must pass those flag(s) also on second link stage (i.e. add to LDFLAGS or so).