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Build both PIC and no PIC static libraries

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When jemalloc is linked into an executable (as opposed to a shared
library), compiling with -fno-pic can have significant advantages,
mainly because we don't have to go throught the GOT (global offset
table).

Users who want to link jemalloc into a shared library that could
be dlopened need to link with libjemalloc_pic.a or libjemalloc.so.
This commit is contained in:
Arun Sharma 2011-02-15 14:13:38 -08:00 committed by je
parent 655f04a5a4
commit af5d6987f8
2 changed files with 19 additions and 11 deletions
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25
jemalloc/Makefile.in
View File

@ -20,7 +20,7 @@ MANDIR := $(DESTDIR)@MANDIR@
# Build parameters.
CPPFLAGS := @CPPFLAGS@ -I@srcroot@include -I@objroot@include
CFLAGS := @CFLAGS@ -fPIC -DPIC
CFLAGS := @CFLAGS@
ifeq (macho, @abi@)
CFLAGS += -dynamic
endif
@ -55,6 +55,7 @@ CSRCS := @srcroot@src/jemalloc.c @srcroot@src/arena.c @srcroot@src/base.c \
ifeq (macho, @abi@)
CSRCS += @srcroot@src/zone.c
endif
STATIC_LIBS := @objroot@lib/libjemalloc@install_suffix@.a
DSOS := @objroot@lib/libjemalloc@install_suffix@.$(SO).$(REV) \
@objroot@lib/libjemalloc@install_suffix@.$(SO) \
@objroot@lib/libjemalloc@install_suffix@_pic.a
@ -75,7 +76,7 @@ CTESTS := @srcroot@test/allocated.c @srcroot@test/allocm.c \
.SECONDARY : $(CTESTS:@srcroot@%.c=@objroot@%.o)
# Default target.
all: $(DSOS)
all: $(DSOS) $(STATIC_LIBS)
dist: doc
@ -99,15 +100,24 @@ doc: $(DOCS)
$(CC) $(CFLAGS) -c $(CPPFLAGS) -o $@ $<
@$(SHELL) -ec "$(CC) -MM $(CPPFLAGS) $< | sed \"s/\($(subst /,\/,$(notdir $(basename $@)))\)\.o\([ :]*\)/$(subst /,\/,$(strip $(dir $@)))\1.o \2/g\" > $(@:%.o=%.d)"
@objroot@src/%.pic.o: @srcroot@src/%.c
@mkdir -p $(@D)
$(CC) $(CFLAGS) -fPIC -DPIC -c $(CPPFLAGS) -o $@ $<
@$(SHELL) -ec "$(CC) -MM $(CPPFLAGS) $< | sed \"s/\($(subst /,\/,$(notdir $(basename $@)))\)\.o\([ :]*\)/$(subst /,\/,$(strip $(dir $@)))\1.o \2/g\" > $(@:%.o=%.d)"
%.$(SO) : %.$(SO).$(REV)
@mkdir -p $(@D)
ln -sf $(<F) $@
@objroot@lib/libjemalloc@install_suffix@.$(SO).$(REV) : $(CSRCS:@srcroot@%.c=@objroot@%.o)
@objroot@lib/libjemalloc@install_suffix@.$(SO).$(REV) : $(CSRCS:@srcroot@%.c=@objroot@%.pic.o)
@mkdir -p $(@D)
$(CC) -shared -Wl,-$(WL_SONAME),$(@F) $(RPATH_EXTRA:%=@RPATH@%) -o $@ $+ $(LDFLAGS) $(LIBS)
@objroot@lib/libjemalloc@install_suffix@_pic.a : $(CSRCS:@srcroot@%.c=@objroot@%.o)
@objroot@lib/libjemalloc@install_suffix@_pic.a : $(CSRCS:@srcroot@%.c=@objroot@%.pic.o)
@mkdir -p $(@D)
ar crus $@ $+
@objroot@lib/libjemalloc@install_suffix@.a : $(CSRCS:@srcroot@%.c=@objroot@%.o)
@mkdir -p $(@D)
ar crus $@ $+
@ -139,11 +149,12 @@ install_include:
install -m 644 $$h $(INCLUDEDIR)/jemalloc; \
done
install_lib: $(DSOS)
install_lib: $(DSOS) $(STATIC_LIBS)
install -d $(LIBDIR)
install -m 755 @objroot@lib/libjemalloc@install_suffix@.$(SO).$(REV) $(LIBDIR)
ln -sf libjemalloc@install_suffix@.$(SO).$(REV) $(LIBDIR)/libjemalloc@install_suffix@.$(SO)
install -m 755 @objroot@lib/libjemalloc@install_suffix@_pic.a $(LIBDIR)
install -m 755 @objroot@lib/libjemalloc@install_suffix@.a $(LIBDIR)
install_html:
install -d $(DATADIR)/doc/jemalloc@install_suffix@
@ -195,12 +206,14 @@ check: tests
clean:
rm -f $(CSRCS:@srcroot@%.c=@objroot@%.o)
rm -f $(CSRCS:@srcroot@%.c=@objroot@%.pic.o)
rm -f $(CSRCS:@srcroot@%.c=@objroot@%.d)
rm -f $(CSRCS:@srcroot@%.c=@objroot@%.pic.d)
rm -f $(CTESTS:@srcroot@%.c=@objroot@%)
rm -f $(CTESTS:@srcroot@%.c=@objroot@%.o)
rm -f $(CTESTS:@srcroot@%.c=@objroot@%.d)
rm -f $(CTESTS:@srcroot@%.c=@objroot@%.out)
rm -f $(DSOS)
rm -f $(DSOS) $(STATIC_LIBS)
distclean: clean
rm -rf @objroot@autom4te.cache

5
jemalloc/include/jemalloc/internal/jemalloc_internal.h.in
View File

@ -148,11 +148,6 @@ extern void (*JEMALLOC_P(malloc_message))(void *wcbopaque, const char *s);
#define SIZEOF_PTR (1U << LG_SIZEOF_PTR)
/* We can't use TLS in non-PIC programs, since TLS relies on loader magic. */
#if (!defined(PIC) && !defined(NO_TLS))
# define NO_TLS
#endif
/*
* Maximum size of L1 cache line. This is used to avoid cache line aliasing.
* In addition, this controls the spacing of cacheline-spaced size classes.