c - gdb doesn't stop on breakpoint -

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i'm trying debug shared library run under check in unit-testing scenario. shared library statically linked (no dlload) , both unit-testing application , shared library compiled debugging symbols (-g)

in gdb want set breakpoint in function contained in shared library. set breakpoint successfully, when runs passes on break-point.

what i've tried already:

i placed printf in shared library, printed out, function called.

here's makefile i'm using compilation:

shell = /bin/sh cc    = gcc cflags       = -g -wall -std=gnu99 -iinclude extra_flags  = -fpic -shared libflags     = -fpic -shared  ldflags      = -shared -pthread -lcheck debugflags   = -o0 -d _debug releaseflags = -o2 -d ndebug -combine -fwhole-program test_ldflags = -lcheck -lllist -llib -wl,-rpath $(objdir)  objdir  = lib target  = $(objdir)/libllist.so test_target = starttest sources = $(shell echo src/*.c) headers = $(shell echo inc/*.h) test_sources = $(shell echo tests/*.c) test_objects = $(test_sources:.c=.o) objects = $(sources:.c=.o) prefix = $(destdir)/usr/local bindir = $(prefix)/bin  all: $(target) tests $(target): $(objects)     mkdir -p $(objdir)     $(cc) $(flags) $(libflags) $(debugflags) -o $(target) $(objects)   tests: $(test_objects)     $(cc) $(flags) -o $(test_target) $(test_objects) $(test_ldflags)  # need special rule compile lib allow extra_flags $(objects): $(sources)     @echo [compiling]: $<     $(cc) $(cflags) $(extra_flags) -o $@ -c $<  clean:     rm -rf $(test_objects) $(objects) *~ $(target) $(test_target)  runtests:     ./$(test_target)

i don't know specifics of check framework using, such frameworks execute code-under-test in child process. if check that, behavior expected -- debugging parent process, code executes in child.

you can confirm guess: replace printf in code abort. if gdb doesn't stop on sigabrt, guess correct, , you'll want (gdb) set follow-fork-mode child.

alternatively, read on multi-inferior debugging. can ask gdb debug both parent , child set detach-on-fork off (documentation).


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