103 lines
3.2 KiB
Diff
103 lines
3.2 KiB
Diff
From 16a326bcd126b395b29019072905bae7a5d47500 Mon Sep 17 00:00:00 2001
|
|
From: Khem Raj <raj.khem@gmail.com>
|
|
Date: Mon, 7 Dec 2015 23:41:45 +0000
|
|
Subject: [PATCH 37/47] Search target sysroot gcc version specific dirs with
|
|
multilib.
|
|
|
|
We install the gcc libraries (such as crtbegin.p) into
|
|
<sysroot><libdir>/<target-sys>/5.2.0/
|
|
which is a default search path for GCC (aka multi_suffix in the
|
|
code below). <target-sys> is 'machine' in gcc's terminology. We use
|
|
these directories so that multiple gcc versions could in theory
|
|
co-exist on target.
|
|
|
|
We only want to build one gcc-cross-canadian per arch and have this work
|
|
for all multilibs. <target-sys> can be handled by mapping the multilib
|
|
<target-sys> to the one used by gcc-cross-canadian, e.g.
|
|
mips64-polkmllib32-linux
|
|
is symlinked to by mips64-poky-linux.
|
|
|
|
The default gcc search path in the target sysroot for a "lib64" mutlilib
|
|
is:
|
|
|
|
<sysroot>/lib32/mips64-poky-linux/5.2.0/
|
|
<sysroot>/lib32/../lib64/
|
|
<sysroot>/usr/lib32/mips64-poky-linux/5.2.0/
|
|
<sysroot>/usr/lib32/../lib64/
|
|
<sysroot>/lib32/
|
|
<sysroot>/usr/lib32/
|
|
|
|
which means that the lib32 crtbegin.o will be found and the lib64 ones
|
|
will not which leads to compiler failures.
|
|
|
|
This patch injects a multilib version of that path first so the lib64
|
|
binaries can be found first. With this change the search path becomes:
|
|
|
|
<sysroot>/lib32/../lib64/mips64-poky-linux/5.2.0/
|
|
<sysroot>/lib32/mips64-poky-linux/5.2.0/
|
|
<sysroot>/lib32/../lib64/
|
|
<sysroot>/usr/lib32/../lib64/mips64-poky-linux/5.2.0/
|
|
<sysroot>/usr/lib32/mips64-poky-linux/5.2.0/
|
|
<sysroot>/usr/lib32/../lib64/
|
|
<sysroot>/lib32/
|
|
<sysroot>/usr/lib32/
|
|
|
|
Upstream-Status: Pending
|
|
RP 2015/7/31
|
|
|
|
Signed-off-by: Khem Raj <raj.khem@gmail.com>
|
|
---
|
|
gcc/gcc.c | 29 ++++++++++++++++++++++++++++-
|
|
1 file changed, 28 insertions(+), 1 deletion(-)
|
|
|
|
diff --git a/gcc/gcc.c b/gcc/gcc.c
|
|
index e015c77f15f..84af5d5a2e1 100644
|
|
--- a/gcc/gcc.c
|
|
+++ b/gcc/gcc.c
|
|
@@ -2533,7 +2533,7 @@ for_each_path (const struct path_prefix *paths,
|
|
if (path == NULL)
|
|
{
|
|
len = paths->max_len + extra_space + 1;
|
|
- len += MAX (MAX (suffix_len, multi_os_dir_len), multiarch_len);
|
|
+ len += MAX ((suffix_len + multi_os_dir_len), multiarch_len);
|
|
path = XNEWVEC (char, len);
|
|
}
|
|
|
|
@@ -2545,6 +2545,33 @@ for_each_path (const struct path_prefix *paths,
|
|
/* Look first in MACHINE/VERSION subdirectory. */
|
|
if (!skip_multi_dir)
|
|
{
|
|
+ if (!(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir))
|
|
+ {
|
|
+ const char *this_multi;
|
|
+ size_t this_multi_len;
|
|
+
|
|
+ if (pl->os_multilib)
|
|
+ {
|
|
+ this_multi = multi_os_dir;
|
|
+ this_multi_len = multi_os_dir_len;
|
|
+ }
|
|
+ else
|
|
+ {
|
|
+ this_multi = multi_dir;
|
|
+ this_multi_len = multi_dir_len;
|
|
+ }
|
|
+
|
|
+ /* Look in multilib MACHINE/VERSION subdirectory first */
|
|
+ if (this_multi_len)
|
|
+ {
|
|
+ memcpy (path + len, this_multi, this_multi_len + 1);
|
|
+ memcpy (path + len + this_multi_len, multi_suffix, suffix_len + 1);
|
|
+ ret = callback (path, callback_info);
|
|
+ if (ret)
|
|
+ break;
|
|
+ }
|
|
+ }
|
|
+
|
|
memcpy (path + len, multi_suffix, suffix_len + 1);
|
|
ret = callback (path, callback_info);
|
|
if (ret)
|
|
--
|
|
2.12.2
|
|
|