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author | Khem Raj <raj.khem@gmail.com> | 2011-10-20 12:18:14 -0700 |
---|---|---|
committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2011-10-24 14:28:19 +0100 |
commit | 3cb2b003db7371b3a47d02c08352a262e1e419b4 (patch) | |
tree | 4127d5b37f14f3e8ca4c1ad8e4751fbd84871a3c | |
parent | 966f28c29a149dca3035e2c37ccf54ed82713bdf (diff) | |
download | openembedded-core-3cb2b003db7371b3a47d02c08352a262e1e419b4.tar.gz openembedded-core-3cb2b003db7371b3a47d02c08352a262e1e419b4.tar.bz2 openembedded-core-3cb2b003db7371b3a47d02c08352a262e1e419b4.tar.xz openembedded-core-3cb2b003db7371b3a47d02c08352a262e1e419b4.zip |
gcc-4.6: Backport fix for PR32219
This fix is needed for gold to work. Otherwise
connman fails to build since it used hidden weak
symbols.
See
http://gcc.gnu.org/bugzilla/PR32219
http://www.cygwin.com/ml/binutils/2008-02/msg00239.html
The fix proposed to gcc had reviews which were not addressed hence the
patch is not yet
applied to gcc upstream.
connman can also have workaround by changing the visibility of these
symbols to be default
__attribute__ ((weak, visibility("hidden")))
to
__attribute__ ((weak, visibility("default")))
in include/plugin.h
Signed-off-by: Khem Raj <raj.khem@gmail.com>
-rw-r--r-- | meta/recipes-devtools/gcc/gcc-4.6.inc | 3 | ||||
-rw-r--r-- | meta/recipes-devtools/gcc/gcc-4.6/pr32219.patch | 71 |
2 files changed, 73 insertions, 1 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-4.6.inc b/meta/recipes-devtools/gcc/gcc-4.6.inc index fbc90eaea..469457c41 100644 --- a/meta/recipes-devtools/gcc/gcc-4.6.inc +++ b/meta/recipes-devtools/gcc/gcc-4.6.inc @@ -1,6 +1,6 @@ require gcc-common.inc -PR = "r15" +PR = "r16" # Third digit in PV should be incremented after a minor release # happens from this branch on gcc e.g. currently its 4.6.0 @@ -70,6 +70,7 @@ SRC_URI = "svn://gcc.gnu.org/svn/gcc/branches;module=${BRANCH};proto=http \ file://fix-for-ice-50099.patch \ file://gcc-with-linker-hash-style.patch \ file://pr46934.patch \ + file://pr32219.patch \ " SRC_URI_append_sh3 = " file://sh3-installfix-fixheaders.patch " diff --git a/meta/recipes-devtools/gcc/gcc-4.6/pr32219.patch b/meta/recipes-devtools/gcc/gcc-4.6/pr32219.patch new file mode 100644 index 000000000..e310080a3 --- /dev/null +++ b/meta/recipes-devtools/gcc/gcc-4.6/pr32219.patch @@ -0,0 +1,71 @@ +Hi, + +As suggested by richi. +regtested on i686-linux-gnu with all default languages and no regressions. +Ok for trunk? + +gcc/ChangeLog +2010-03-15 Bernhard Reutner-Fischer <aldot@gcc.gnu.org> + + PR target/32219 + * varasm.c (default_binds_local_p_1): Weak data is not local. + +gcc/testsuite/ChangeLog +2010-03-15 Bernhard Reutner-Fischer <aldot@gcc.gnu.org> + + PR target/32219 + * gcc.dg/visibility-21.c: New test. + +Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> +--- + gcc/testsuite/gcc.dg/visibility-21.c | 14 ++++++++++++++ + gcc/varasm.c | 8 ++++---- + 2 files changed, 18 insertions(+), 4 deletions(-) + create mode 100644 gcc/testsuite/gcc.dg/visibility-21.c + +Index: gcc-4_6-branch/gcc/testsuite/gcc.dg/visibility-21.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ gcc-4_6-branch/gcc/testsuite/gcc.dg/visibility-21.c 2011-10-18 17:11:33.224827436 -0700 +@@ -0,0 +1,14 @@ ++/* PR target/32219 */ ++/* { dg-do run } */ ++/* { dg-require-visibility "" } */ ++/* { dg-options "-fPIC" { target fpic } } */ ++ ++extern void f() __attribute__((weak,visibility("hidden"))); ++extern int puts( char const* ); ++int main() ++{ ++ if (f) ++ f(); ++ return 0; ++} ++ +Index: gcc-4_6-branch/gcc/varasm.c +=================================================================== +--- gcc-4_6-branch.orig/gcc/varasm.c 2011-09-16 19:58:21.000000000 -0700 ++++ gcc-4_6-branch/gcc/varasm.c 2011-10-18 17:19:06.431074788 -0700 +@@ -6760,6 +6760,10 @@ + /* Static variables are always local. */ + else if (! TREE_PUBLIC (exp)) + local_p = true; ++ /* hidden weak can't be overridden by something non-local, all ++ that is possible is that it is not defined at all. */ ++ else if (DECL_WEAK (exp)) ++ local_p = false; + /* A variable is local if the user has said explicitly that it will + be. */ + else if ((DECL_VISIBILITY_SPECIFIED (exp) +@@ -6773,11 +6777,6 @@ + local. */ + else if (DECL_VISIBILITY (exp) != VISIBILITY_DEFAULT) + local_p = true; +- /* Default visibility weak data can be overridden by a strong symbol +- in another module and so are not local. */ +- else if (DECL_WEAK (exp) +- && !resolved_locally) +- local_p = false; + /* If PIC, then assume that any global name can be overridden by + symbols resolved from other modules. */ + else if (shlib) |