MIPS: Fix gigaton of warning building with microMIPS.
With binutils 2.24 the attempt to switch with microMIPS mode to MIPS III
mode through .set mips3 results in *lots* of warnings like
{standard input}: Assembler messages:
{standard input}:397: Warning: the 64-bit MIPS architecture does not support the `smartmips' extension
during a kernel build. Fixed by using .set arch=r4000 instead.
This breaks support for building the kernel with binutils 2.13 which
was supported for 32 bit kernels only anyway and 2.14 which was a bad
vintage for MIPS anyway.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/include/asm/futex.h b/arch/mips/include/asm/futex.h
index 1fe2cd6..194cda0 100644
--- a/arch/mips/include/asm/futex.h
+++ b/arch/mips/include/asm/futex.h
@@ -23,11 +23,11 @@
__asm__ __volatile__( \
" .set push \n" \
" .set noat \n" \
- " .set mips3 \n" \
+ " .set arch=r4000 \n" \
"1: ll %1, %4 # __futex_atomic_op \n" \
" .set mips0 \n" \
" " insn " \n" \
- " .set mips3 \n" \
+ " .set arch=r4000 \n" \
"2: sc $1, %2 \n" \
" beqzl $1, 1b \n" \
__WEAK_LLSC_MB \
@@ -49,11 +49,11 @@
__asm__ __volatile__( \
" .set push \n" \
" .set noat \n" \
- " .set mips3 \n" \
+ " .set arch=r4000 \n" \
"1: "user_ll("%1", "%4")" # __futex_atomic_op\n" \
" .set mips0 \n" \
" " insn " \n" \
- " .set mips3 \n" \
+ " .set arch=r4000 \n" \
"2: "user_sc("$1", "%2")" \n" \
" beqz $1, 1b \n" \
__WEAK_LLSC_MB \
@@ -147,12 +147,12 @@
"# futex_atomic_cmpxchg_inatomic \n"
" .set push \n"
" .set noat \n"
- " .set mips3 \n"
+ " .set arch=r4000 \n"
"1: ll %1, %3 \n"
" bne %1, %z4, 3f \n"
" .set mips0 \n"
" move $1, %z5 \n"
- " .set mips3 \n"
+ " .set arch=r4000 \n"
"2: sc $1, %2 \n"
" beqzl $1, 1b \n"
__WEAK_LLSC_MB
@@ -174,12 +174,12 @@
"# futex_atomic_cmpxchg_inatomic \n"
" .set push \n"
" .set noat \n"
- " .set mips3 \n"
+ " .set arch=r4000 \n"
"1: "user_ll("%1", "%3")" \n"
" bne %1, %z4, 3f \n"
" .set mips0 \n"
" move $1, %z5 \n"
- " .set mips3 \n"
+ " .set arch=r4000 \n"
"2: "user_sc("$1", "%2")" \n"
" beqz $1, 1b \n"
__WEAK_LLSC_MB