Hello,
we have to define the tool chain versions intended for RTEMS 4.11.
For Binutils I would like to use release 2.24 with the attached patch.
For GCC we should use a recent 4.8 branch snapshot (e.g.
ftp://ftp.gwdg.de/pub/misc/gcc/snapshots/4.8-20140130/gcc-4.8-20140130.tar.bz2)
and use GCC 4.8.3 for the release. This gives us also some time to test the
RTEMS 4.11 branch, which we should create soon.
In the GCC 4.8.2 release there are several SPARC specific patches not included
which are part of the GCC 4.8 branch. We should submit all outstanding GCC
patches upstream before the GCC 4.8.3 release.
This GCC patch change is still open:
http://www.rtems.org/pipermail/rtems-devel/2013-April/002868.html
See also:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47111
This is also an open issue:
http://www.rtems.org/pipermail/rtems-devel/2013-April/002830.html
For Newlib I would use 2.1.0 without any patches or a recent snapshot.
--
Sebastian Huber, embedded brains GmbH
Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone : +49 89 189 47 41-16
Fax : +49 89 189 47 41-09
E-Mail : sebastian.hu...@embedded-brains.de
PGP : Public key available on request.
Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
>From ef2b1af6209f4e172b877c2204cba1204a73c53f Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.hu...@embedded-brains.de>
Date: Sun, 2 Feb 2014 06:39:39 -0800
Subject: [PATCH] Fix ALIGN_WITH_INPUT
ld/
2014-02-02 Sebastian Huber <sebastian.hu...@embedded-brains.de>
* ld/ld.texinfo: Change ALIGN_WITH_INPUT documentation.
* ld/ldlang.c (lang_size_sections_1): Add dotdelta
variable which reflects the VMA change due to alignment
requirements. Use dotdelta do change the LMA if
ALIGN_WITH_INPUT is requested.
ld/testsuite/ChangeLog
2014-02-02 Sebastian Huber <sebastian.hu...@embedded-brains.de>
* ld-scripts/rgn-at9.d: New file.
* ld-scripts/rgn-at9.t: Likewise.
* ld-scripts/rgn-at10.d: Likewise.
* ld-scripts/rgn-at10.s: Likewise.
* ld-scripts/rgn-at10.t: Likewise.
* ld-scripts/rgn-at11.d: Likewise.
* ld-scripts/rgn-at11.t: Likewise.
Mainline commit:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=13075d049d492477dfbf795c305adbab5abb6d81
---
ld/ChangeLog | 8 ++++++
ld/ld.texinfo | 6 +---
ld/ldlang.c | 42 ++++++++++++++++++++++-------------
ld/testsuite/ChangeLog | 10 ++++++++
ld/testsuite/ld-scripts/rgn-at10.d | 12 ++++++++++
ld/testsuite/ld-scripts/rgn-at10.s | 10 ++++++++
ld/testsuite/ld-scripts/rgn-at10.t | 13 +++++++++++
ld/testsuite/ld-scripts/rgn-at11.d | 11 +++++++++
ld/testsuite/ld-scripts/rgn-at11.t | 13 +++++++++++
ld/testsuite/ld-scripts/rgn-at9.d | 10 ++++++++
ld/testsuite/ld-scripts/rgn-at9.t | 12 ++++++++++
11 files changed, 127 insertions(+), 20 deletions(-)
create mode 100644 ld/testsuite/ld-scripts/rgn-at10.d
create mode 100644 ld/testsuite/ld-scripts/rgn-at10.s
create mode 100644 ld/testsuite/ld-scripts/rgn-at10.t
create mode 100644 ld/testsuite/ld-scripts/rgn-at11.d
create mode 100644 ld/testsuite/ld-scripts/rgn-at11.t
create mode 100644 ld/testsuite/ld-scripts/rgn-at9.d
create mode 100644 ld/testsuite/ld-scripts/rgn-at9.t
diff --git a/ld/ChangeLog b/ld/ChangeLog
index 2474ee2..048475f 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,11 @@
+2014-02-02 Sebastian Huber <sebastian.hu...@embedded-brains.de>
+
+ * ld/ld.texinfo: Change ALIGN_WITH_INPUT documentation.
+ * ld/ldlang.c (lang_size_sections_1): Add dotdelta
+ variable which reflects the VMA change due to alignment
+ requirements. Use dotdelta do change the LMA if
+ ALIGN_WITH_INPUT is requested.
+
2013-12-10 Roland McGrath <mcgra...@google.com>
* Makefile.am (install-exec-local): Prefix libtool invocation with
diff --git a/ld/ld.texinfo b/ld/ld.texinfo
index c925ecb..29e481b 100644
--- a/ld/ld.texinfo
+++ b/ld/ld.texinfo
@@ -4599,10 +4599,8 @@ for (dst = &_bstart; dst< &_bend; dst++)
@cindex forcing output section alignment
@cindex output section alignment
You can increase an output section's alignment by using ALIGN. As an
-alternative you can force the output section alignment to the maximum alignment
-of all its input sections with ALIGN_WITH_INPUT. The alignment forced by
-ALIGN_WITH_INPUT is used even in case the load and virtual memory regions are
-different.
+alternative you can enforce that the difference between the VMA and LMA remains
+intact throughout this output section with the ALIGN_WITH_INPUT attribute.
@node Forced Input Alignment
@subsubsection Forced Input Alignment
diff --git a/ld/ldlang.c b/ld/ldlang.c
index ba7f493..3298234 100644
--- a/ld/ldlang.c
+++ b/ld/ldlang.c
@@ -4773,7 +4773,7 @@ lang_size_sections_1
{
case lang_output_section_statement_enum:
{
- bfd_vma newdot, after;
+ bfd_vma newdot, after, dotdelta;
lang_output_section_statement_type *os;
lang_memory_region_type *r;
int section_alignment = 0;
@@ -4839,6 +4839,7 @@ lang_size_sections_1
}
newdot = dot;
+ dotdelta = 0;
if (bfd_is_abs_section (os->bfd_section))
{
/* No matter what happens, an abs section starts at zero. */
@@ -4907,13 +4908,14 @@ lang_size_sections_1
bfd_vma savedot = newdot;
newdot = align_power (newdot, section_alignment);
- if (newdot != savedot
+ dotdelta = newdot - savedot;
+ if (dotdelta != 0
&& (config.warn_section_align
|| os->addr_tree != NULL)
&& expld.phase != lang_mark_phase_enum)
einfo (_("%P: warning: changing start of section"
" %s by %lu bytes\n"),
- os->name, (unsigned long) (newdot - savedot));
+ os->name, (unsigned long) dotdelta);
}
bfd_set_section_vma (0, os->bfd_section, newdot);
@@ -4961,15 +4963,20 @@ lang_size_sections_1
{
bfd_vma lma = os->lma_region->current;
- /* When LMA_REGION is the same as REGION, align the LMA
- as we did for the VMA, possibly including alignment
- from the bfd section. If a different region, then
- only align according to the value in the output
- statement unless specified otherwise. */
- if (os->lma_region != os->region && !os->align_lma_with_input)
- section_alignment = os->section_alignment;
- if (section_alignment > 0)
- lma = align_power (lma, section_alignment);
+ if (os->align_lma_with_input)
+ lma += dotdelta;
+ else
+ {
+ /* When LMA_REGION is the same as REGION, align the LMA
+ as we did for the VMA, possibly including alignment
+ from the bfd section. If a different region, then
+ only align according to the value in the output
+ statement. */
+ if (os->lma_region != os->region)
+ section_alignment = os->section_alignment;
+ if (section_alignment > 0)
+ lma = align_power (lma, section_alignment);
+ }
os->bfd_section->lma = lma;
}
else if (r->last_os != NULL
@@ -5045,7 +5052,10 @@ lang_size_sections_1
if ((os->bfd_section->flags & SEC_HAS_CONTENTS) != 0
|| (os->bfd_section->flags & SEC_THREAD_LOCAL) == 0
|| link_info.relocatable)
- dot += TO_ADDR (os->bfd_section->size);
+ dotdelta = TO_ADDR (os->bfd_section->size);
+ else
+ dotdelta = 0;
+ dot += dotdelta;
if (os->update_dot_tree != 0)
exp_fold_tree (os->update_dot_tree, bfd_abs_section_ptr, &dot);
@@ -5065,10 +5075,10 @@ lang_size_sections_1
os->bfd_section->vma);
if (os->lma_region != NULL && os->lma_region != os->region
- && (os->bfd_section->flags & SEC_LOAD))
+ && ((os->bfd_section->flags & SEC_LOAD)
+ || os->align_lma_with_input))
{
- os->lma_region->current
- = os->bfd_section->lma + TO_ADDR (os->bfd_section->size);
+ os->lma_region->current = os->bfd_section->lma + dotdelta;
if (check_regions)
os_region_check (os, os->lma_region, NULL,
diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog
index 0f87f11..762f82d 100644
--- a/ld/testsuite/ChangeLog
+++ b/ld/testsuite/ChangeLog
@@ -1,3 +1,13 @@
+2014-02-02 Sebastian Huber <sebastian.hu...@embedded-brains.de>
+
+ * ld-scripts/rgn-at9.d: New file.
+ * ld-scripts/rgn-at9.t: Likewise.
+ * ld-scripts/rgn-at10.d: Likewise.
+ * ld-scripts/rgn-at10.s: Likewise.
+ * ld-scripts/rgn-at10.t: Likewise.
+ * ld-scripts/rgn-at11.d: Likewise.
+ * ld-scripts/rgn-at11.t: Likewise.
+
2013-12-11 Will Newton <will.new...@linaro.org>
* ld-aarch64/ifunc-21.d: Make test more generic to support
diff --git a/ld/testsuite/ld-scripts/rgn-at10.d b/ld/testsuite/ld-scripts/rgn-at10.d
new file mode 100644
index 0000000..73ebfcc
--- /dev/null
+++ b/ld/testsuite/ld-scripts/rgn-at10.d
@@ -0,0 +1,12 @@
+#source: rgn-at10.s
+#ld: -T rgn-at10.t
+#objdump: -h --wide
+#xfail: rx-*-*
+# Test that lma is adjusted in case the section start vma is aligned and
+# lma_region != region if requested by script. Make sure this works with
+# non-load sections.
+
+#...
+.* 0+10000 +0+20000 .*
+.* 0+10100 +0+20100 .*
+.* 0+10100 +0+20100 .*
diff --git a/ld/testsuite/ld-scripts/rgn-at10.s b/ld/testsuite/ld-scripts/rgn-at10.s
new file mode 100644
index 0000000..b538205
--- /dev/null
+++ b/ld/testsuite/ld-scripts/rgn-at10.s
@@ -0,0 +1,10 @@
+ .text
+ .long 0
+
+ .section .tbss,"awT",%nobits
+ .p2align 8
+ .zero 4
+
+ .data
+ .p2align 4
+ .long 0
diff --git a/ld/testsuite/ld-scripts/rgn-at10.t b/ld/testsuite/ld-scripts/rgn-at10.t
new file mode 100644
index 0000000..0aa0b27
--- /dev/null
+++ b/ld/testsuite/ld-scripts/rgn-at10.t
@@ -0,0 +1,13 @@
+MEMORY
+{
+ ram : ORIGIN = 0x10000, LENGTH = 0x10000
+ rom : ORIGIN = 0x20000, LENGTH = 0x10000
+}
+
+SECTIONS
+{
+ .text : ALIGN_WITH_INPUT {*(.text)} > ram AT> rom
+ .tbss : ALIGN_WITH_INPUT {*(.tbss)} > ram AT> rom
+ .data : ALIGN_WITH_INPUT {*(.data)} > ram AT> rom
+ /DISCARD/ : {*(*)}
+}
diff --git a/ld/testsuite/ld-scripts/rgn-at11.d b/ld/testsuite/ld-scripts/rgn-at11.d
new file mode 100644
index 0000000..9ebbd28
--- /dev/null
+++ b/ld/testsuite/ld-scripts/rgn-at11.d
@@ -0,0 +1,11 @@
+#source: rgn-at10.s
+#ld: -T rgn-at11.t
+#objdump: -h --wide
+#xfail: rx-*-*
+# Test that lma is not adjusted in case the section start vma is aligned and
+# lma_region != region if not requested by script.
+
+#...
+.* 0+10000 +0+20000 .*
+.* 0+10100 +0+20004 .*
+.* 0+10100 +0+20004 .*
diff --git a/ld/testsuite/ld-scripts/rgn-at11.t b/ld/testsuite/ld-scripts/rgn-at11.t
new file mode 100644
index 0000000..4f07c9d
--- /dev/null
+++ b/ld/testsuite/ld-scripts/rgn-at11.t
@@ -0,0 +1,13 @@
+MEMORY
+{
+ ram : ORIGIN = 0x10000, LENGTH = 0x10000
+ rom : ORIGIN = 0x20000, LENGTH = 0x10000
+}
+
+SECTIONS
+{
+ .text : ALIGN_WITH_INPUT {*(.text)} > ram AT> rom
+ .tbss : {*(.tbss)} > ram AT> rom
+ .data : ALIGN_WITH_INPUT {*(.data)} > ram AT> rom
+ /DISCARD/ : {*(*)}
+}
diff --git a/ld/testsuite/ld-scripts/rgn-at9.d b/ld/testsuite/ld-scripts/rgn-at9.d
new file mode 100644
index 0000000..e6384b4
--- /dev/null
+++ b/ld/testsuite/ld-scripts/rgn-at9.d
@@ -0,0 +1,10 @@
+#source: rgn-at6.s
+#ld: -T rgn-at9.t
+#objdump: -h --wide
+#xfail: rx-*-*
+# Test that lma is adjusted in case the section start vma is aligned and
+# lma_region != region if requested by script.
+
+#...
+.* 0+10000 +0+20080 .*
+.* 0+10100 +0+20180 .*
diff --git a/ld/testsuite/ld-scripts/rgn-at9.t b/ld/testsuite/ld-scripts/rgn-at9.t
new file mode 100644
index 0000000..7342e64
--- /dev/null
+++ b/ld/testsuite/ld-scripts/rgn-at9.t
@@ -0,0 +1,12 @@
+MEMORY
+{
+ ram : ORIGIN = 0x10000, LENGTH = 0x10000
+ rom : ORIGIN = 0x20080, LENGTH = 0x10000
+}
+
+SECTIONS
+{
+ .text : ALIGN_WITH_INPUT {*(.text)} > ram AT> rom
+ .data : ALIGN_WITH_INPUT {*(.data)} > ram AT> rom
+ /DISCARD/ : {*(*)}
+}
--
1.7.7
_______________________________________________
rtems-devel mailing list
rtems-devel@rtems.org
http://www.rtems.org/mailman/listinfo/rtems-devel
