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| author | Max Filippov <jcmvbkbc@gmail.com> | 2018-11-07 13:20:50 -0800 |
|---|---|---|
| committer | Peter Korsgaard <peter@korsgaard.com> | 2018-11-09 15:51:07 +0100 |
| commit | 4debb2fbb7d60ed7f81ddab82d8b48ac9c4c3055 (patch) | |
| tree | 49d429e655c4aac016aa1bf149bf4db92abdd48a /package/gcc | |
| parent | 99989d3b91ef6cadc0c8d1a73203178da9ac6af7 (diff) | |
| download | buildroot-4debb2fbb7d60ed7f81ddab82d8b48ac9c4c3055.tar.gz buildroot-4debb2fbb7d60ed7f81ddab82d8b48ac9c4c3055.zip | |
package/gcc: fix xtensa uclinux code generation
xtensa-uclinux uses bFLT executable file format that cannot relocate
fields representing offsets from data to code. C++ objects built as PIC
use offsets to encode FDE structures. As a result C++ exception handling
doesn't work correctly on xtensa-uclinux. Don't use PIC by default on
xtensa-uclinux.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Diffstat (limited to 'package/gcc')
3 files changed, 123 insertions, 0 deletions
diff --git a/package/gcc/6.4.0/0004-gcc-xtensa-don-t-force-PIC-for-uclinux-target.patch b/package/gcc/6.4.0/0004-gcc-xtensa-don-t-force-PIC-for-uclinux-target.patch new file mode 100644 index 0000000000..360947cbb1 --- /dev/null +++ b/package/gcc/6.4.0/0004-gcc-xtensa-don-t-force-PIC-for-uclinux-target.patch @@ -0,0 +1,41 @@ +From 960a2552f7b418134cdf7a31e96023a3811b98dd Mon Sep 17 00:00:00 2001 +From: Max Filippov <jcmvbkbc@gmail.com> +Date: Sun, 4 Nov 2018 23:55:59 -0800 +Subject: [PATCH] gcc: xtensa: don't force PIC for uclinux target + +xtensa-uclinux uses bFLT executable file format that cannot relocate +fields representing offsets from data to code. C++ objects built as PIC +use offsets to encode FDE structures. As a result C++ exception handling +doesn't work correctly on xtensa-uclinux. Don't use PIC by default on +xtensa-uclinux. + +gcc/ +2018-11-05 Max Filippov <jcmvbkbc@gmail.com> + + * config/xtensa/uclinux.h (XTENSA_ALWAYS_PIC): Change to 0. + +Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> +--- +Backported from: r265823 + + gcc/config/xtensa/uclinux.h | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/gcc/config/xtensa/uclinux.h b/gcc/config/xtensa/uclinux.h +index ba26187c8f7a..c7743df9d97c 100644 +--- a/gcc/config/xtensa/uclinux.h ++++ b/gcc/config/xtensa/uclinux.h +@@ -59,8 +59,8 @@ along with GCC; see the file COPYING3. If not see + #undef LOCAL_LABEL_PREFIX + #define LOCAL_LABEL_PREFIX "." + +-/* Always enable "-fpic" for Xtensa Linux. */ +-#define XTENSA_ALWAYS_PIC 1 ++/* Don't enable "-fpic" for Xtensa uclinux. */ ++#define XTENSA_ALWAYS_PIC 0 + + #undef TARGET_LIBC_HAS_FUNCTION + #define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function +-- +2.11.0 + diff --git a/package/gcc/7.3.0/0005-gcc-xtensa-don-t-force-PIC-for-uclinux-target.patch b/package/gcc/7.3.0/0005-gcc-xtensa-don-t-force-PIC-for-uclinux-target.patch new file mode 100644 index 0000000000..360947cbb1 --- /dev/null +++ b/package/gcc/7.3.0/0005-gcc-xtensa-don-t-force-PIC-for-uclinux-target.patch @@ -0,0 +1,41 @@ +From 960a2552f7b418134cdf7a31e96023a3811b98dd Mon Sep 17 00:00:00 2001 +From: Max Filippov <jcmvbkbc@gmail.com> +Date: Sun, 4 Nov 2018 23:55:59 -0800 +Subject: [PATCH] gcc: xtensa: don't force PIC for uclinux target + +xtensa-uclinux uses bFLT executable file format that cannot relocate +fields representing offsets from data to code. C++ objects built as PIC +use offsets to encode FDE structures. As a result C++ exception handling +doesn't work correctly on xtensa-uclinux. Don't use PIC by default on +xtensa-uclinux. + +gcc/ +2018-11-05 Max Filippov <jcmvbkbc@gmail.com> + + * config/xtensa/uclinux.h (XTENSA_ALWAYS_PIC): Change to 0. + +Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> +--- +Backported from: r265823 + + gcc/config/xtensa/uclinux.h | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/gcc/config/xtensa/uclinux.h b/gcc/config/xtensa/uclinux.h +index ba26187c8f7a..c7743df9d97c 100644 +--- a/gcc/config/xtensa/uclinux.h ++++ b/gcc/config/xtensa/uclinux.h +@@ -59,8 +59,8 @@ along with GCC; see the file COPYING3. If not see + #undef LOCAL_LABEL_PREFIX + #define LOCAL_LABEL_PREFIX "." + +-/* Always enable "-fpic" for Xtensa Linux. */ +-#define XTENSA_ALWAYS_PIC 1 ++/* Don't enable "-fpic" for Xtensa uclinux. */ ++#define XTENSA_ALWAYS_PIC 0 + + #undef TARGET_LIBC_HAS_FUNCTION + #define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function +-- +2.11.0 + diff --git a/package/gcc/8.2.0/0005-gcc-xtensa-don-t-force-PIC-for-uclinux-target.patch b/package/gcc/8.2.0/0005-gcc-xtensa-don-t-force-PIC-for-uclinux-target.patch new file mode 100644 index 0000000000..360947cbb1 --- /dev/null +++ b/package/gcc/8.2.0/0005-gcc-xtensa-don-t-force-PIC-for-uclinux-target.patch @@ -0,0 +1,41 @@ +From 960a2552f7b418134cdf7a31e96023a3811b98dd Mon Sep 17 00:00:00 2001 +From: Max Filippov <jcmvbkbc@gmail.com> +Date: Sun, 4 Nov 2018 23:55:59 -0800 +Subject: [PATCH] gcc: xtensa: don't force PIC for uclinux target + +xtensa-uclinux uses bFLT executable file format that cannot relocate +fields representing offsets from data to code. C++ objects built as PIC +use offsets to encode FDE structures. As a result C++ exception handling +doesn't work correctly on xtensa-uclinux. Don't use PIC by default on +xtensa-uclinux. + +gcc/ +2018-11-05 Max Filippov <jcmvbkbc@gmail.com> + + * config/xtensa/uclinux.h (XTENSA_ALWAYS_PIC): Change to 0. + +Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> +--- +Backported from: r265823 + + gcc/config/xtensa/uclinux.h | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/gcc/config/xtensa/uclinux.h b/gcc/config/xtensa/uclinux.h +index ba26187c8f7a..c7743df9d97c 100644 +--- a/gcc/config/xtensa/uclinux.h ++++ b/gcc/config/xtensa/uclinux.h +@@ -59,8 +59,8 @@ along with GCC; see the file COPYING3. If not see + #undef LOCAL_LABEL_PREFIX + #define LOCAL_LABEL_PREFIX "." + +-/* Always enable "-fpic" for Xtensa Linux. */ +-#define XTENSA_ALWAYS_PIC 1 ++/* Don't enable "-fpic" for Xtensa uclinux. */ ++#define XTENSA_ALWAYS_PIC 0 + + #undef TARGET_LIBC_HAS_FUNCTION + #define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function +-- +2.11.0 + |
