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Add basic backtrace functionality #12070

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Add basic backtrace functionality #12070

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a3bbe3f
Add basic backtrace functionality
alexcrichton Feb 5, 2014
3eedd8e
trying to build libbacktrace
alexcrichton Feb 27, 2014
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36 changes: 36 additions & 0 deletions mk/rt.mk
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Original file line number Diff line number Diff line change
Expand Up @@ -249,6 +249,42 @@ $$(COMPRT_LIB_$(1)): $$(COMPRT_DEPS) $$(MKFILE_DEPS)
triple-runtime
$$(Q)cp $$(COMPRT_BUILD_DIR_$(1))/triple/runtime/libcompiler_rt.a $$(COMPRT_LIB_$(1))

################################################################################
# libbacktrace
#
# We use libbacktrace on linux to get symbols in backtraces, but only on linux.
# Elsewhere we use other system utilities, so this library is only built on
# linux.
################################################################################

ifeq ($$(findstring linux,$$(OSTYPE_$(1))),linux)
ifdef CFG_ENABLE_FAST_MAKE
BACKTRACE_DEPS := $(S)/.gitmodules
else
BACKTRACE_DEPS := $(wildcard $(S)src/backtrace/*)
endif

BACKTRACE_NAME_$(1) := $$(call CFG_STATIC_LIB_NAME_$(1),backtrace)
BACKTRACE_LIB_$(1) := $$(RT_OUTPUT_DIR_$(1))/$$(BACKTRACE_NAME_$(1))
BACKTRACE_BUILD_DIR_$(1) := $$(RT_OUTPUT_DIR_$(1))/libbacktrace

$$(BACKTRACE_LIB_$(1)): $$(BACKTRACE_DEPS) $$(MKFILE_DEPS)
@$$(call E, make: libbacktrace)
$$(Q)(cd $$(BACKTRACE_BUILD_DIR_$(1) && $(S)src/libbacktrace/configure)
$$(Q)$$(MAKE) -C $$(BACKTRACE_BUILD_DIR_$(1)) \
CC="$$(CC_$(1))" \
AR="$$(AR_$(1))" \
RANLIB="$$(AR_$(1)) s" \
CFLAGS="$$(CFG_GCCISH_CFLAGS_$(1))"
$$(Q)cp $$(BACKTRACE_BUILD_DIR_$(1))/.libs/libbacktrace.a $$@
else

# We don't use this on platforms that aren't linux-based, so just make the file
# available, the compilation of libstd won't actually build it.
$$(BACKTRACE_LIB_$(1)):
touch $$@
endif

endef

# Instantiate template for all stages/targets
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