From 6779990021530129a78eb73db122e3976f687c7e Mon Sep 17 00:00:00 2001
From: Richard Purdie <richard.purdie@linuxfoundation.org>
Date: Mon, 26 Sep 2016 17:25:26 +0100
Subject: prelink: Manipulate library paths to match the target system library
 setup

Currently, prelink doesn't work unless base_libdir/libdir match
its hardcoded values. This patch manipulates those paths so that
they match the values set in the variables and handles multilib
configurations too. The manipulations only happen in the target
case, if needed.

[YOCTO #10282]

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
---
 meta/recipes-devtools/prelink/prelink_git.bb | 93 ++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)

(limited to 'meta/recipes-devtools/prelink')

diff --git a/meta/recipes-devtools/prelink/prelink_git.bb b/meta/recipes-devtools/prelink/prelink_git.bb
index 5d9f260f85..0856b1c667 100644
--- a/meta/recipes-devtools/prelink/prelink_git.bb
+++ b/meta/recipes-devtools/prelink/prelink_git.bb
@@ -44,6 +44,99 @@ BBCLASSEXTEND = "native"
 EXTRA_OECONF = "--disable-selinux --with-pkgversion=${PV}-${PR} \
 	--with-bugurl=http://bugzilla.yoctoproject.org/"
 
+
+#
+# For target prelink we need to ensure paths match the lib path layout
+# including for any configured multilibs
+#
+python do_linkerpaths () {
+    values = all_multilib_tune_list(["TUNE_ARCH", "baselib", "ABIEXTENSION"], d)
+
+    arches = values["TUNE_ARCH"]
+    baselibs = values["baselib"]
+    abis = values["ABIEXTENSION"]
+
+    def replace_lines(f, search, replacement, d, firstonly = False, secondonly = False):
+        f = d.expand(f)
+        if search == replacement:
+            return
+        bb.debug(2, "Replacing %s with %s in %s" % (search, replacement, f))
+        with open(f, "r") as data:
+            lines = data.readlines()
+        with open(f, "w") as data:
+            for line in lines:
+                if not secondonly and not firstonly:
+                    line = line.replace(search, replacement)
+                elif secondonly and search in line:
+                    secondonly = False
+                elif firstonly and search and search in line:
+                    line = line.replace(search, replacement)
+                    search = None
+                data.write(line)
+
+    def replace_lines_rtld(f, search, replacement, section, d):
+        f = d.expand(f)
+        bb.debug(2, "Replacing %s with %s in %s" % (search, replacement, f))
+        with open(f, "r") as data:
+            lines = data.readlines()
+        found = False
+        found2 = False
+        with open(f, "w") as data:
+            for line in lines:
+                if section in line:
+                    if section == "else" and "if" in line:
+                        found = False
+                    else:
+                        found = True
+                if found and "dst_LIB =" in line:
+                    found2 = True
+                elif "}" in line:
+                    found = False
+                    found2 = False
+                if found2:
+                    line = line.replace(search, replacement)
+                data.write(line)
+
+    for i, arch in enumerate(arches):
+        tune_baselib = baselibs[i]
+        abi = abis[i]
+
+        bits = 32
+        if arch == "powerpc":
+            replace_lines("${S}/src/arch-ppc.c", "/lib/ld.so.1", "/" + tune_baselib + "/ld.so.1", d)
+        elif arch == "powerpc64":
+            replace_lines("${S}/src/arch-ppc64.c", "/lib64/ld64.so.1", "/" + tune_baselib + "/ld64.so.1", d)
+            bits = 64
+        elif arch == "x86_64":
+            if abi == "x32":
+                replace_lines("${S}/src/arch-x86_64.c", "/libx32/ld-linux-x32.so.2", "/" + tune_baselib + "/ld-linux-x32.so.2", d)
+            else:
+                replace_lines("${S}/src/arch-x86_64.c", "/lib64/ld-linux-x86-64.so.2", "/" + tune_baselib + "/ld-linux-x86-64.so.2", d)
+            bits = 64
+        elif arch == "arm":
+            replace_lines("${S}/src/arch-arm.c", "/lib/ld-linux.so.3", "/" + tune_baselib + "/ld-linux.so.3", d)
+            replace_lines("${S}/src/arch-arm.c", "/lib/ld-linux-armhf.so.3", "/" + tune_baselib + "/ld-linux-armhf.so.3", d)
+        elif arch == "mips" or arch == "mipsel":
+            replace_lines("${S}/src/arch-mips.c", "/lib/ld.so.1", "/" + tune_baselib + "/ld.so.1", d, firstonly=True)
+            replace_lines("${S}/src/arch-mips.c", "/lib32/ld.so.1", "/" + tune_baselib + "/ld.so.1", d)
+        elif arch == "mips64" or arch == "mips64el":
+            replace_lines("${S}/src/arch-mips.c", "/lib/ld.so.1", "/" + tune_baselib + "/ld.so.1", d, secondonly=True)
+            replace_lines("${S}/src/arch-mips.c", "/lib64/ld.so.1", "/" + tune_baselib + "/ld.so.1", d)
+            bits = 64
+        elif arch.endswith("86"):
+            replace_lines("${S}/src/arch-i386.c", "/lib/ld-linux.so.2", "/" + tune_baselib + "/ld-linux.so.2", d)
+        if bits == 32 and tune_baselib != "lib":
+            replace_lines_rtld("${S}/src/rtld/rtld.c", "lib", tune_baselib, "else", d)
+        if bits == 64 and tune_baselib != "lib64":
+            replace_lines_rtld("${S}/src/rtld/rtld.c", "lib64", tune_baselib, "use_64bit", d)
+}
+
+python () {
+    overrides = d.getVar("OVERRIDES", True).split(":")
+    if "class-target" in overrides:
+        bb.build.addtask('do_linkerpaths', 'do_configure', 'do_patch', d)
+}
+
 do_configure_prepend () {
         # Disable documentation!
         echo "all:" > ${S}/doc/Makefile.am
-- 
cgit 1.2.3-korg