This bug appears to be present in all version of gcc 3.x.x and 4.x.x
When invoking gas via gcc the -mthumb option is not passed by the compiler
driver to the assembler.
Repeat by:
1) build an arm cross compiler.
2) attempt to assemble an arm thumb .S file, using gcc as the driver:
arm-elf-gcc -v -c foo.S
3) note that the assembler is invoked without the -mthumb option. Further, if
the .S file is valid thumb assembler that happens to be valid arm assembler,
the assembler will assemble it as arm code rather than thumb code.
--
Summary: gcc driver should pass -mthumb option to arm assembler
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: minor
Priority: P3
Component: driver
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: mf dot danger at gmail dot com
GCC build triplet: any
GCC host triplet: any
GCC target triplet: arm-any-any
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27237
