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ffunction-sections ARM thumb mode
- From: Nick Winters <nick at wintersteam dot org>
- To: newlib at sources dot redhat dot com
- Date: Thu, 10 Feb 2011 10:57:34 -0800
- Subject: ffunction-sections ARM thumb mode
To improve efficiency I decided to enable -function-sections when
compiling newlib for ARM thumb mode with interworking enabled. As a
result I received the following error:
symbol _start_thumb is in a different section
The following is a diff on the /src/libgloss/arm/linux-crt0.c file to
force the _start_thumb into the .text section:
Index: linux-crt0.c
===================================================================
RCS file: /cvs/src/src/libgloss/arm/linux-crt0.c,v
retrieving revision 1.2
diff -r1.2 linux-crt0.c
24c24,27
< __attribute__((naked, used))
---
> /* Force _start_thumb in the .text section so this will still compile when
> * enabling -ffunction-sections.
> */
> __attribute__((naked, used)) __attribute__((section(".text")))
Nick