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>
This commit is contained in:
Max Filippov
Peter Korsgaard
parent
99989d3b91
commit
4debb2fbb7
@ -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
|
||||
|
||||
@ -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
|
||||
|
||||
@ -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
|
||||
|
||||
Loading…
Reference in New Issue
Block a user