[uml-devel] [PATCH] section name cleanup for um

[uml-devel] [PATCH] section name cleanup for um

[Tim Abbott]

This patch series cleans up the section names on the um
architecture.  It requires the architecture-independent macro
definitions from this patch series:

<http://www.spinics.net/lists/mips/msg33499.html>

The long-term goal here is to add support for building the kernel with
-ffunction-sections -fdata-sections.  This requires renaming all the
magic section names in the kernel of the form .text.foo, .data.foo,
.bss.foo, and .rodata.foo to not have collisions with sections
generated for code like:

static int nosave = 0; /* -fdata-sections places in .data.nosave */
static void head(); /* -ffunction-sections places in .text.head */

Note that these patches have not been boot-tested (aside from testing
the analogous changes on x86), since I don't have access to the
appropriate hardware.

	-Tim Abbott


Tim Abbott (1):
  um: use new macros for .data.init_task.

 arch/um/kernel/dyn.lds.S   |    3 +--
 arch/um/kernel/init_task.c |    3 +--
 arch/um/kernel/uml.lds.S   |    3 +--
 3 files changed, 3 insertions(+), 6 deletions(-)


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[uml-devel] [PATCH] um: use new macros for .data.init_task.

[Tim Abbott]

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: user-mode-linux-devel@lists.sourceforge.net
---
 arch/um/kernel/dyn.lds.S   |    3 +--
 arch/um/kernel/init_task.c |    3 +--
 arch/um/kernel/uml.lds.S   |    3 +--
 3 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/arch/um/kernel/dyn.lds.S b/arch/um/kernel/dyn.lds.S
index 9975e1a..901f703 100644
--- a/arch/um/kernel/dyn.lds.S
+++ b/arch/um/kernel/dyn.lds.S
@@ -96,8 +96,7 @@ SECTIONS
   .init_array     : { *(.init_array) }
   .fini_array     : { *(.fini_array) }
   .data           : {
-    . = ALIGN(KERNEL_STACK_SIZE);		/* init_task */
-    *(.data.init_task)
+    INIT_TASK_DATA(KERNEL_STACK_SIZE)
     . = ALIGN(KERNEL_STACK_SIZE);
     *(.data.init_irqstack)
     DATA_DATA
diff --git a/arch/um/kernel/init_task.c b/arch/um/kernel/init_task.c
index 806d381..0d4657f 100644
--- a/arch/um/kernel/init_task.c
+++ b/arch/um/kernel/init_task.c
@@ -33,8 +33,7 @@ EXPORT_SYMBOL(init_task);
  * "init_task" linker map entry..
  */
 
-union thread_union init_thread_union
-	__attribute__((__section__(".data.init_task"))) =
+union thread_union init_thread_union __init_task_data =
 		{ INIT_THREAD_INFO(init_task) };
 
 union thread_union cpu0_irqstack
diff --git a/arch/um/kernel/uml.lds.S b/arch/um/kernel/uml.lds.S
index 11b8352..e4394a5 100644
--- a/arch/um/kernel/uml.lds.S
+++ b/arch/um/kernel/uml.lds.S
@@ -52,8 +52,7 @@ SECTIONS
   init.data : { INIT_DATA }
   .data    :
   {
-    . = ALIGN(KERNEL_STACK_SIZE);		/* init_task */
-    *(.data.init_task)
+    INIT_TASK_DATA(KERNEL_STACK_SIZE)
     . = ALIGN(KERNEL_STACK_SIZE);
     *(.data.init_irqstack)
     DATA_DATA
-- 
1.6.2.1


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