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From be51757920b56a77e2e63247f9a8409ce994d33c Mon Sep 17 00:00:00 2001
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From: "Richard W.M. Jones" <rjones@redhat.com>
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Date: Mon, 26 Feb 2018 12:38:12 +0000
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Subject: [PATCH] ocaml: Link the C bindings with LDFLAGS (RHBZ#1548536).
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Use the ocamlmklib -ldopt flag to pass the general $(LDFLAGS) when
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calling gcc to link dllmlhivex.so. We were already passing $(CFLAGS)
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when building the object file.
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When building using Fedora's standard hardening flags this gives:
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ocamlmklib -o mlhivex hivex_c.o hivex.cmo \
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-verbose -ldopt '-Wl,-z,relro -specs=/usr/lib/rpm/redhat/redhat-hardened-ld' \
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-L../lib/.libs -lhivex
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+ gcc -shared -o ./dllmlhivex.so hivex_c.o -Wl,-z,relro -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -L../lib/.libs -lhivex
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+ ar rc ./libmlhivex.a hivex_c.o; ranlib ./libmlhivex.a
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+ /usr/bin/ocamlc -a -o mlhivex.cma hivex.cmo -dllib -lmlhivex -cclib -lmlhivex -cclib -L../lib/.libs -cclib -lhivex
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This also works if $(LDFLAGS) is empty, because ocamlmklib ignores
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-ldopt ''.
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---
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ocaml/Makefile.am | 8 ++++++--
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1 file changed, 6 insertions(+), 2 deletions(-)
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diff --git a/ocaml/Makefile.am b/ocaml/Makefile.am
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index 61db095..85655b6 100644
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--- a/ocaml/Makefile.am
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+++ b/ocaml/Makefile.am
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@@ -41,10 +41,14 @@ OBJS = hivex_c.o hivex.cmo
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XOBJS = $(OBJS:.cmo=.cmx)
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mlhivex.cma: $(OBJS)
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- $(OCAMLMKLIB) -o mlhivex $^ -L$(top_builddir)/lib/.libs -lhivex
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+ $(OCAMLMKLIB) -o mlhivex $^ \
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+ -ldopt '$(LDFLAGS)' \
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+ -L$(top_builddir)/lib/.libs -lhivex
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mlhivex.cmxa: $(XOBJS)
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- $(OCAMLMKLIB) -o mlhivex $^ -L$(top_builddir)/lib/.libs -lhivex
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+ $(OCAMLMKLIB) -o mlhivex $^ \
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+ -ldopt '$(LDFLAGS)' \
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+ -L$(top_builddir)/lib/.libs -lhivex
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hivex_c.o: hivex_c.c
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$(CC) $(AM_CPPFLAGS) $(CFLAGS) -fPIC -Wall -c $<
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--
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2.13.2
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