PROBLEM DESCRIPTION
under certain circumstances, Thumb interworking code is not
generated correctlyby GNU LD. it is full of NULLs.
with arm-elf-ld:
- if you have --gc-sections enabled
- if you have asm in ARM mode with -mthumb-interwork
- asm code contains an "ax" section .VhaInit with instructions
- if you have a C file in Thumb mode -mthumb with -mthumb-interwork
- if asm code is positioned before C generated code
using --section-start whereas .text is positioned later with -Ttext
- if you prevent garbage-collection of .VhaInit using instructions
from .text to access .VhaInit
then, the thumb interworking code is zero.
WORKAROUND
the interworking code is generated correctly if you place -Ttext before
--section-start.
--
Summary: Thumb interworking code zero under certain circumstances
Product: binutils
Version: 2.17
Status: NEW
Severity: normal
Priority: P2
Component: ld
AssignedTo: unassigned at sources dot redhat dot com
ReportedBy: adsouzp at netscape dot net
CC: bug-binutils at gnu dot org
GCC host triplet: CYGWIN_NT-5.1 jenny 1.5.25(0.156/4/2) 2008-06-12 19:34
i686 Cygw
GCC target triplet: ARM ELF arm7tdmi armv4t
http://sourceware.org/bugzilla/show_bug.cgi?id=6727
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