b00c034fe5
Add patch to fix linking failure while creating shared library. As explained in the patch itself, there is no specific variable for when we link a shared library and rebar itself rely on the default LDFLAGS. Since by default every CFLAGS is filled with -fPIC we need to make sure that every LDFLAGS is the same, so not having any other *_LDFLAGS variable to fille with -fPIC let's add it to the main LDFLAGS. Fixes: http://autobuild.buildroot.net/results/602/60296a48210e7ffc6bc9fa50ee586441a8957e85/ Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com> Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
36 lines
1.4 KiB
Diff
36 lines
1.4 KiB
Diff
From 7f54d48ee5db037778ead310e0b8278f3fe70b41 Mon Sep 17 00:00:00 2001
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From: Giulio Benetti <giulio.benetti@benettiengineering.com>
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Date: Sun, 19 Dec 2021 07:52:55 +0100
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Subject: [PATCH] src/rebar_port_compiler: add -fPIC to LDFLAGS by default
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Since both DRV_CFLAGS and EXE_CFLAGS list -fPIC we need also the LDFLAGS
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to follow them. Unfortunately adding -fPIC only to DRV_LDFLAGS and
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EXE_LDFLAGS is not sufficient, since when linking as a library(.so) it
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doesn't take into account those variables. Since -fPIC is needed by default
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by any kind of linking, let's add it to the general -fPIC. Rebar seems to
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link libraries without taking into account any variable listed in:
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src/rebar_port_compiler.erl
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this after testing and tracing for every variable.
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Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
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---
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src/rebar_port_compiler.erl | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/src/rebar_port_compiler.erl b/src/rebar_port_compiler.erl
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index 9679c80..bd08b21 100644
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--- a/src/rebar_port_compiler.erl
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+++ b/src/rebar_port_compiler.erl
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@@ -645,6 +645,8 @@ default_env() ->
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{"OBJCOPY", get_tool(Arch, "objcopy", "objcopy")},
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{"OBJDUMP", get_tool(Arch, "objdump", "objdump")},
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+ {"LDFLAGS", "-fPIC $LDFLAGS"},
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+
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{"DRV_CXX_TEMPLATE",
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"$CXX -c $CXXFLAGS $DRV_CFLAGS $PORT_IN_FILES -o $PORT_OUT_FILE"},
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{"DRV_CC_TEMPLATE",
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--
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2.25.1
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