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authorFlorian Fainelli <florian@openwrt.org>2010-03-12 14:24:17 +0000
committerFlorian Fainelli <florian@openwrt.org>2010-03-12 14:24:17 +0000
commitb8f02a36d193f5369bff2a465bc23f6725bcd558 (patch)
treef8b5f5b702fa51689824c86c8fd3ee90da1f0445 /target/linux/uml
parentf93c17cba4ba2c4b7780c5c4c04c3358a6c04d0e (diff)
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add support for 2.6.33
SVN-Revision: 20158
Diffstat (limited to 'target/linux/uml')
-rw-r--r--target/linux/uml/patches-2.6.33/001-gcc4_unit_at_a_time_i386_fix.patch11
-rw-r--r--target/linux/uml/patches-2.6.33/002-gcc4_unfortify_source.patch21
-rw-r--r--target/linux/uml/patches-2.6.33/003-fix_text_section.patch40
-rw-r--r--target/linux/uml/patches-2.6.33/901-lib_zlib_deflate_visible.patch14
4 files changed, 86 insertions, 0 deletions
diff --git a/target/linux/uml/patches-2.6.33/001-gcc4_unit_at_a_time_i386_fix.patch b/target/linux/uml/patches-2.6.33/001-gcc4_unit_at_a_time_i386_fix.patch
new file mode 100644
index 0000000000..442c0ec76e
--- /dev/null
+++ b/target/linux/uml/patches-2.6.33/001-gcc4_unit_at_a_time_i386_fix.patch
@@ -0,0 +1,11 @@
+--- a/arch/um/Makefile-i386
++++ b/arch/um/Makefile-i386
+@@ -35,7 +35,7 @@ cflags-y += -ffreestanding
+ # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
+ # a lot more stack due to the lack of sharing of stacklots. Also, gcc
+ # 4.3.0 needs -funit-at-a-time for extern inline functions.
+-KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then \
++KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0403 ] ; then \
+ echo $(call cc-option,-fno-unit-at-a-time); \
+ else echo $(call cc-option,-funit-at-a-time); fi ;)
+
diff --git a/target/linux/uml/patches-2.6.33/002-gcc4_unfortify_source.patch b/target/linux/uml/patches-2.6.33/002-gcc4_unfortify_source.patch
new file mode 100644
index 0000000000..2be33d02a3
--- /dev/null
+++ b/target/linux/uml/patches-2.6.33/002-gcc4_unfortify_source.patch
@@ -0,0 +1,21 @@
+--- a/arch/um/Makefile-i386
++++ b/arch/um/Makefile-i386
+@@ -39,4 +39,8 @@ KBUILD_CFLAGS += $(shell if [ $(call cc-
+ echo $(call cc-option,-fno-unit-at-a-time); \
+ else echo $(call cc-option,-funit-at-a-time); fi ;)
+
++# disable compile-time buffer checks, enabled by default on Ubuntu 8.10
++# and later
++KBUILD_CFLAGS += $(call cc-option,-U_FORTIFY_SOURCE)
++
+ KBUILD_CFLAGS += $(cflags-y)
+--- a/arch/um/Makefile-x86_64
++++ b/arch/um/Makefile-x86_64
+@@ -24,3 +24,7 @@ LINK-y += -m64
+
+ # Do unit-at-a-time unconditionally on x86_64, following the host
+ KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
++
++# disable compile-time buffer checks, enabled by default on Ubuntu 8.10
++# and later
++KBUILD_CFLAGS += $(call cc-option,-U_FORTIFY_SOURCE)
diff --git a/target/linux/uml/patches-2.6.33/003-fix_text_section.patch b/target/linux/uml/patches-2.6.33/003-fix_text_section.patch
new file mode 100644
index 0000000000..f973cfd604
--- /dev/null
+++ b/target/linux/uml/patches-2.6.33/003-fix_text_section.patch
@@ -0,0 +1,40 @@
+um: remove PAGE_SIZE alignment in linker script causing kernel segfault.
+
+The linker script cleanup that I did in commit
+5d150a97f9391f5bcd7ba0d59d7a11c3de3cea80 accidentally introduced an
+ALIGN(PAGE_SIZE) when converting to use INIT_TEXT_SECTION; Richard
+Weinberger reported that this causes the kernel to segfault with
+CONFIG_STATIC_LINK=y.
+
+I'm not certain why this extra alignment is a problem, but it seems likely
+it is because previously
+
+__init_begin = _stext = _text = _sinittext
+
+and with the extra ALIGN(PAGE_SIZE), _sinittext becomes different from the
+rest. So there is likely a bug here where something is assuming that
+_sinittext is the same as one of those other symbols. But reverting the
+accidental change fixes the regression, so it seems worth committing that
+now.
+
+Signed-off-by: Tim Abbott <tabbott@ksplice.com>
+Reported-by: richard -rw- weinberger <richard.weinberger@gmail.com>
+Cc: Jeff Dike <jdike@addtoit.com>
+Cc: user-mode-linux-devel@lists.sourceforge.net
+---
+ arch/um/kernel/uml.lds.S | 2 +-
+ 1 files changed, 1 insertions(+), 1 deletions(-)
+
+diff --git a/arch/um/kernel/uml.lds.S b/arch/um/kernel/uml.lds.S
+index e7a6cca..664f942 100644
+--- a/arch/um/kernel/uml.lds.S
++++ b/arch/um/kernel/uml.lds.S
+@@ -22,7 +22,7 @@ SECTIONS
+ _text = .;
+ _stext = .;
+ __init_begin = .;
+- INIT_TEXT_SECTION(PAGE_SIZE)
++ INIT_TEXT_SECTION(0)
+ . = ALIGN(PAGE_SIZE);
+
+ .text :
diff --git a/target/linux/uml/patches-2.6.33/901-lib_zlib_deflate_visible.patch b/target/linux/uml/patches-2.6.33/901-lib_zlib_deflate_visible.patch
new file mode 100644
index 0000000000..b71a673314
--- /dev/null
+++ b/target/linux/uml/patches-2.6.33/901-lib_zlib_deflate_visible.patch
@@ -0,0 +1,14 @@
+make ZLIB_DEFLATE visible, so that we can choose whether we want it built-in
+or as a module
+
+--- a/lib/Kconfig
++++ b/lib/Kconfig
+@@ -92,7 +92,7 @@ config ZLIB_INFLATE
+ tristate
+
+ config ZLIB_DEFLATE
+- tristate
++ tristate "Zlib compression"
+
+ config LZO_COMPRESS
+ tristate