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915eed20e4
This adds support for kcov to UML. There is a small problem where UML will randomly segfault during boot; this is because current_thread_info() occasionally returns an invalid (non-NULL) pointer and we try to dereference it in __sanitizer_cov_trace_pc(). I consider this a bug in UML itself and this patch merely exposes it. [v2: disable instrumentation in UML-specific code] Cc: Quentin Casasnovas <quentin.casasnovas@oracle.com> Cc: Richard Weinberger <richard@nod.at> Cc: Thomas Meyer <thomas@m3y3r.de> Cc: user-mode-linux-devel <user-mode-linux-devel@lists.sourceforge.net> Cc: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: Richard Weinberger <richard@nod.at>
24 lines
736 B
Makefile
24 lines
736 B
Makefile
#
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# Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
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# Licensed under the GPL
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#
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# Don't instrument UML-specific code
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KCOV_INSTRUMENT := n
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obj-y = aio.o execvp.o file.o helper.o irq.o main.o mem.o process.o \
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registers.o sigio.o signal.o start_up.o time.o tty.o \
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umid.o user_syms.o util.o drivers/ skas/
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obj-$(CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA) += elf_aux.o
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USER_OBJS := $(user-objs-y) aio.o elf_aux.o execvp.o file.o helper.o irq.o \
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main.o mem.o process.o registers.o sigio.o signal.o start_up.o time.o \
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tty.o umid.o util.o
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HAVE_AIO_ABI := $(shell [ -r /usr/include/linux/aio_abi.h ] && \
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echo -DHAVE_AIO_ABI )
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CFLAGS_aio.o += $(HAVE_AIO_ABI)
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include arch/um/scripts/Makefile.rules
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