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 # This Source Code Form is subject to the terms of the Mozilla Public

 # License, v. 2.0. If a copy of the MPL was not distributed with this

 # file, You can obtain one at http://mozilla.org/MPL/2.0/.

 ifdef MOZ_THUMB2 #{

 # The syscall number is passed through r7 in the linux ARM ABI, but r7

 # is also the THUMB frame pointer.  (Unfortunate, but ah well.)  gcc

 # complains if we store to r7, not unreasonably, but complains

 # inconsistently.  The generic syscall template pushes/stores to/pops

 # r7 with no complaint from gcc, but the sys_clone() function marks r7

 # as a clobbered register yet gcc error's.  The generated assembly for

 # sys_clone() looks OK, so we chalk this up to a gcc/gas quirk and

 # work around it by telling gcc that the THUMB frame pointer is a

 # vanilla callee-save register.

 OS_CXXFLAGS += -fomit-frame-pointer

 MOZ_FRAMEPTR_FLAGS := -fomit-frame-pointer

 endif #}