diff options
Diffstat (limited to 'sys-devel/gcc/files/awk/fixlafiles.awk')
| -rw-r--r-- | sys-devel/gcc/files/awk/fixlafiles.awk | 314 |
1 files changed, 314 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 00000000..ffade966 --- /dev/null +++ b/sys-devel/gcc/files/awk/fixlafiles.awk @@ -0,0 +1,314 @@ +# Copyright 1999-2005 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 +# $Header: /var/cvsroot/gentoo-x86/sys-devel/gcc/files/awk/fixlafiles.awk,v 1.15 2008/02/19 05:47:29 vapier Exp $ + +# +# 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 |