target/uml: rename patch 003 to match what we have in 2.6.30

[openwrt.git] / target / linux / uml / patches-2.6.32 / 004-fix_text_section.patch

diff --git a/target/linux/uml/patches-2.6.32/004-fix_text_section.patch b/target/linux/uml/patches-2.6.32/004-fix_text_section.patch
new file mode 100644 (file)
index 0000000..210435e
--- /dev/null
+++ b/target/linux/uml/patches-2.6.32/004-fix_text_section.patch
@@ -0,0 +1,38 @@
+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(-)
+
+--- 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      :