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Diffstat (limited to 'sys-devel/gcc/files/awk/fixlafiles.awk')
-rw-r--r--sys-devel/gcc/files/awk/fixlafiles.awk313
1 files changed, 313 insertions, 0 deletions
diff --git a/sys-devel/gcc/files/awk/fixlafiles.awk b/sys-devel/gcc/files/awk/fixlafiles.awk
new file mode 100644
index 0000000..36cdfb7
--- /dev/null
+++ b/sys-devel/gcc/files/awk/fixlafiles.awk
@@ -0,0 +1,313 @@
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+#
+# Helper functions
+#
+function printn(string) {
+ printf("%s", string)
+}
+function einfo(string) {
+ printf(" \033[32;01m*\033[0m %s\n", string)
+}
+function einfon(string) {
+ printf(" \033[32;01m*\033[0m %s", string)
+}
+function ewarn(string) {
+ printf(" \033[33;01m*\033[0m %s\n", string)
+}
+function ewarnn(string) {
+ printf(" \033[33;01m*\033[0m %s", string)
+}
+function eerror(string) {
+ printf(" \033[31;01m*\033[0m %s\n", string)
+}
+
+#
+# assert(condition, errmsg)
+# assert that a condition is true. Otherwise exit.
+#
+function assert(condition, string) {
+ if (! condition) {
+ printf("%s:%d: assertion failed: %s\n",
+ FILENAME, FNR, string) > "/dev/stderr"
+ _assert_exit = 1
+ exit 1
+ }
+}
+
+#
+# system(command, return)
+# wrapper that normalizes return codes ...
+#
+function dosystem(command, ret) {
+ ret = 0
+ ret = system(command)
+ if (ret == 0)
+ return 1
+ else
+ return 0
+}
+
+BEGIN {
+ #
+ # Get our variables from environment
+ #
+ OLDVER = ENVIRON["OLDVER"]
+ OLDCHOST = ENVIRON["OLDCHOST"]
+
+ if (OLDVER == "") {
+ eerror("Could not get OLDVER!");
+ exit 1
+ }
+
+ # Setup some sane defaults
+ LIBCOUNT = 2
+ HAVE_GCC34 = 0
+ DIRLIST[1] = "/lib"
+ DIRLIST[2] = "/usr/lib"
+
+ #
+ # Walk /etc/ld.so.conf to discover all our library paths
+ #
+ pipe = "cat /etc/ld.so.conf | sort 2>/dev/null"
+ while(((pipe) | getline ldsoconf_data) > 0) {
+ if (ldsoconf_data !~ /^[[:space:]]*#/) {
+ if (ldsoconf_data == "") continue
+
+ # Remove any trailing comments
+ sub(/#.*$/, "", ldsoconf_data)
+ # Remove any trailing spaces
+ sub(/[[:space:]]+$/, "", ldsoconf_data)
+
+ # If there's more than one path per line, split
+ # it up as if they were sep lines
+ split(ldsoconf_data, nodes, /[:,[:space:]]/)
+
+ # Now add the rest from ld.so.conf
+ for (x in nodes) {
+ # wtf does this line do ?
+ sub(/=.*/, "", nodes[x])
+ # Prune trailing /
+ sub(/\/$/, "", nodes[x])
+
+ if (nodes[x] == "") continue
+
+ #
+ # Drop the directory if its a child directory of
+ # one that was already added ...
+ # For example, if we have:
+ # /usr/lib /usr/libexec /usr/lib/mozilla /usr/lib/nss
+ # We really just want to save /usr/lib /usr/libexec
+ #
+ CHILD = 0
+ for (y in DIRLIST) {
+ if (nodes[x] ~ "^" DIRLIST[y] "(/|$)") {
+ CHILD = 1
+ break
+ }
+ }
+ if (CHILD) continue
+
+ DIRLIST[++LIBCOUNT] = nodes[x]
+ }
+ }
+ }
+ close(pipe)
+
+ #
+ # Get line from gcc's output containing CHOST
+ #
+ pipe = "gcc -print-file-name=libgcc.a 2>/dev/null"
+ if ((!((pipe) | getline TMP_CHOST)) || (TMP_CHOST == "")) {
+ close(pipe)
+
+ # If we fail to get the CHOST, see if we can get the CHOST
+ # portage thinks we are using ...
+ pipe = "/usr/bin/portageq envvar 'CHOST'"
+ assert(((pipe) | getline CHOST), "(" pipe ") | getline CHOST")
+ } else {
+ # Check pre gcc-3.4.x versions
+ CHOST = gensub("^.+lib/gcc-lib/([^/]+)/[0-9]+.+$", "\\1", 1, TMP_CHOST)
+
+ if (CHOST == TMP_CHOST || CHOST == "") {
+ # Check gcc-3.4.x or later
+ CHOST = gensub("^.+lib/gcc/([^/]+)/[0-9]+.+$", "\\1", 1, TMP_CHOST);
+
+ if (CHOST == TMP_CHOST || CHOST == "")
+ CHOST = ""
+ else
+ HAVE_GCC34 = 1
+ }
+ }
+ close(pipe)
+
+ if (CHOST == "") {
+ eerror("Could not get gcc's CHOST!")
+ exit 1
+ }
+
+ if (OLDCHOST != "")
+ if (OLDCHOST == CHOST)
+ OLDCHOST = ""
+
+ GCCLIBPREFIX_OLD = "/usr/lib/gcc-lib/"
+ GCCLIBPREFIX_NEW = "/usr/lib/gcc/"
+
+ if (HAVE_GCC34)
+ GCCLIBPREFIX = GCCLIBPREFIX_NEW
+ else
+ GCCLIBPREFIX = GCCLIBPREFIX_OLD
+
+ GCCLIB = GCCLIBPREFIX CHOST
+
+ if (OLDCHOST != "") {
+ OLDGCCLIB1 = GCCLIBPREFIX_OLD OLDCHOST
+ OLDGCCLIB2 = GCCLIBPREFIX_NEW OLDCHOST
+ }
+
+ # Get current gcc's version
+ pipe = "gcc -dumpversion"
+ assert(((pipe) | getline NEWVER), "(" pipe ") | getline NEWVER)")
+ close(pipe)
+
+ if (NEWVER == "") {
+ eerror("Could not get gcc's version!")
+ exit 1
+ }
+
+ # Nothing to do ?
+ if ((OLDVER == NEWVER) && (OLDCHOST == ""))
+ exit 0
+
+ #
+ # Ok, now let's scan for the .la files and actually fix them up
+ #
+ for (x = 1; x <= LIBCOUNT; x++) {
+ # Do nothing if the target dir is gcc's internal library path
+ if (DIRLIST[x] ~ GCCLIBPREFIX_OLD ||
+ DIRLIST[x] ~ GCCLIBPREFIX_NEW)
+ continue
+
+ einfo(" [" x "/" LIBCOUNT "] Scanning " DIRLIST[x] " ...")
+
+ pipe = "find " DIRLIST[x] "/ -name '*.la' 2>/dev/null"
+ while (((pipe) | getline la_files) > 0) {
+
+ # Do nothing if the .la file is located in gcc's internal lib path
+ if (la_files ~ GCCLIBPREFIX_OLD ||
+ la_files ~ GCCLIBPREFIX_NEW)
+ continue
+
+ CHANGED = 0
+ CHOST_CHANGED = 0
+
+ # See if we need to fix the .la file
+ while ((getline la_data < (la_files)) > 0) {
+ if (OLDCHOST != "") {
+ if ((gsub(OLDGCCLIB1 "[/[:space:]]+",
+ GCCLIB, la_data) > 0) ||
+ (gsub(OLDGCCLIB2 "[/[:space:]]+",
+ GCCLIB, la_data) > 0)) {
+ CHANGED = 1
+ CHOST_CHANGED = 1
+ }
+ }
+ if (OLDVER != NEWVER) {
+ if ((gsub(GCCLIBPREFIX_OLD CHOST "/" OLDVER "[/[:space:]]*",
+ GCCLIB "/" NEWVER, la_data) > 0) ||
+ (gsub(GCCLIBPREFIX_NEW CHOST "/" OLDVER "[/[:space:]]*",
+ GCCLIB "/" NEWVER, la_data) > 0))
+ CHANGED = 1
+ }
+ }
+ close(la_files)
+
+ # Do the actual changes in a second loop, as we can then
+ # verify that CHOST_CHANGED among things is correct ...
+ if (CHANGED) {
+ ewarnn(" FIXING: " la_files " ...")
+
+ if (CHANGED)
+ printn("[")
+
+ # Clear the temp file (removing rather than '>foo' is better
+ # out of a security point of view?)
+ dosystem("rm -f " la_files ".new")
+
+ while ((getline la_data < (la_files)) > 0) {
+ if (OLDCHOST != "") {
+ tmpstr = gensub(OLDGCCLIB1 "([/[:space:]]+)",
+ GCCLIB "\\1", "g", la_data)
+ tmpstr = gensub(OLDGCCLIB2 "([/[:space:]]+)",
+ GCCLIB "\\1", "g", tmpstr)
+
+ if (la_data != tmpstr) {
+ printn("c")
+ la_data = tmpstr
+ }
+
+ if (CHOST_CHANGED > 0) {
+ # We try to be careful about CHOST changes outside
+ # the gcc library path (meaning we cannot match it
+ # via /GCCLIBPREFIX CHOST/) ...
+
+ # Catch:
+ #
+ # dependency_libs=' -L/usr/CHOST/{bin,lib}'
+ #
+ gsub("-L/usr/" OLDCHOST "/",
+ "-L/usr/" CHOST "/", la_data)
+ # Catch:
+ #
+ # dependency_libs=' -L/usr/lib/gcc-lib/CHOST/VER/../../../../CHOST/lib'
+ #
+ la_data = gensub("(" GCCLIB "/[^[:space:]]+)/" OLDCHOST "/",
+ "\\1/" CHOST "/", "g", la_data)
+ }
+ }
+
+ if (OLDVER != NEWVER) {
+ # Catch:
+ #
+ # dependency_libs=' -L/usr/lib/gcc/CHOST/VER'
+ #
+ tmpstr = gensub(GCCLIBPREFIX_OLD CHOST "/" OLDVER "([/[:space:]]+)",
+ GCCLIB "/" NEWVER "\\1", "g", la_data)
+ tmpstr = gensub(GCCLIBPREFIX_NEW CHOST "/" OLDVER "([/[:space:]]+)",
+ GCCLIB "/" NEWVER "\\1", "g", tmpstr)
+
+ if (la_data != tmpstr) {
+ # Catch:
+ #
+ # dependency_libs=' -L/usr/lib/gcc-lib/../../CHOST/lib'
+ #
+ # in cases where we have gcc34
+ tmpstr = gensub(GCCLIBPREFIX_OLD "(../../" CHOST "/lib)",
+ GCCLIBPREFIX "\\1", "g", tmpstr)
+ tmpstr = gensub(GCCLIBPREFIX_NEW "(../../" CHOST "/lib)",
+ GCCLIBPREFIX "\\1", "g", tmpstr)
+ printn("v")
+ la_data = tmpstr
+ }
+ }
+
+ print la_data >> (la_files ".new")
+ }
+
+ if (CHANGED)
+ print "]"
+
+ close(la_files)
+ close(la_files ".new")
+
+ assert(dosystem("mv -f " la_files ".new " la_files),
+ "dosystem(\"mv -f " la_files ".new " la_files "\")")
+ }
+ }
+
+ close(pipe)
+ }
+}
+
+# vim:ts=4