Changeset ad31873f for scripts/scripts/native-scripts/native-gcc.sh

Timestamp:

Mar 10, 2006, 6:25:11 AM (19 years ago)

Author:

Jim Gifford <clfs@…>

Branches:

clfs-1.2, clfs-2.1, clfs-3.0.0-systemd, clfs-3.0.0-sysvinit, master, systemd, sysvinit

Children:

c9946b3

Parents:

14f25d6

Message:

r2539@server (orig r1260): ryan | 2006-03-10 06:07:41 -0800

r1336@rei: lfs | 2006-03-11 01:06:05 +1100
Add GCC PR20425 fixes to 4.1.0 release.
This fixes a multitude of sins, most noticably with libtool on multilib systems.
Iterative path searches the gcc driver performs should now search multilib directories first.

Submitted By: Ryan Oliver <ryan at pha dot com dot au>
Date: 2006-03-10
Initial Package Version: 4.1.0
Origin: GCC SVN Revision 108635 (diffed against 4.1.0 release)
Upstream Status: In GCC trunk
Description: Fix for PR20425

From ​http://gcc.gnu.org/ml/gcc-patches/2005-12/msg00818.html
---------------------------------8<------------------------------------
This gives the gcc driver a new path iteration function, for_each_path,
and uses it everywhere, making path iteration a little more consistent.
for_each_path uses the same path ordering as the existing find_file
function. I've also tweaked some of the existing find_a_file calls for
consistency, and uncovered and fixed some other bugs..

Functional changes are:

o %D library paths are printed in the same order as gcc uses elsewhere

when searching library directories, ie. all multilib paths are first.
​http://gcc.gnu.org/ml/gcc-patches/2005-03/msg02044.html effectively
reverted by the rewrite because I believe the same speedup is gained
by searching the right dirs first.

o gcc -print-search-dirs prints library multilib paths followed by

non-multilib paths where before we just printed non-multilib paths.

o LIBRARY_PATH_ENV similarly includes multilib directories.

o All searches of startfile_prefixes now look in multilib dirs first

followed by non-multilib dirs. This changes the dirs we search for
spec files, and %include and %include_noerr in specs. Previously
we only searched the non-multilib dirs for specs files. I think this
change is worthwhile just for consistency, and the extension is
reasonable. For instance, it would allow different spec files to be
used for gcc -m64 vs. gcc -m32. However, if others think this wrong,
I won't argue. Consistency isn't everything.

o Some attempt made to prevent searching of duplicate paths. The old

find_file would search some paths twice (when multilib_dir was NULL
but multilib_os_dir non-NULL). We still search twice in some cases,
eg. /usr/lib/../lib and /usr/lib are considered different paths.

o find_a_file with last param (do_multi) true now searches both

multilib and non-multilib paths. Before, do_multi (well, the old
param name was multilib) meant just search multilib paths. This
isn't a user-visible change as the only place where find_a_file was
invoked with the last param true was from find_file, where we
immediately followed with a non-multilib find_a_file.

o Memory leaks fixed in is_directory.

o LIBRARY_PATH_ENV and COMPILER_PATH now only have existing

directories, making LIBRARY_PATH_ENV closer to %D paths. The
following lines (which I remove) in is_directory meant that
is_directory didn't do much for LIBRARY_PATH_ENV, except on
SMALL_ARG_MAX machines.

4278 ian #ifndef SMALL_ARG_MAX
4278 ian if (! linker)
4278 ian return 1;
4278 ian #endif

I'll also remove mention of SMALL_ARG_MAX in config and doc files
when I commit this change as this is the only place it is used.

o gcc -Bnon-dir-prefix- now works properly. The previously mentioned

is_directory peculiarity affected the following code.

43664 nickc /* Catch the case where the user has forgotten to append a
46063 jsm28 directory separator to the path. Note, they may be using
43664 nickc -B to add an executable name prefix, eg "i386-elf-", in
43664 nickc order to distinguish between multiple installations of
43664 nickc GCC in the same directory. Hence we must check to see
43664 nickc if appending a directory separator actually makes a
43664 nickc valid directory name. */
43664 nickc if (! IS_DIR_SEPARATOR (value [len - 1])
43664 nickc && is_directory (value, "", 0))
43664 nickc {
43767 ghazi char *tmp = xmalloc (len + 2);
43767 ghazi strcpy (tmp, value);
43767 ghazi tmp[len] = DIR_SEPARATOR;
43767 ghazi tmp[++ len] = 0;
43767 ghazi value = tmp;
43664 nickc }

Bootstrapped and regression tested powerpc64-linux and powerpc-linux on
a previous iteration of this patch missing is_directory fixes.
Currently running tests on this patch.

File:

• scripts/scripts/native-scripts/native-gcc.sh (modified) (1 diff)

scripts/scripts/native-scripts/native-gcc.sh

@@ -87 +87 @@
       apply_patch gcc-4.0.0-reload_check_uninitialized_pseudos_PR20973
       apply_patch gcc-4.0.0-remove_standard_startfile_prefix_from_startfile_prefixes-1
+   ;;
+   4.1.0 )
+      apply_patch gcc-4.0.0-clean_exec_and_lib_search_paths_when_cross-1
+      apply_patch gcc-4.1.0-fix_PR20425
    ;;
    4.0.* | 4.1.* )