MIPS: Apply `.insn' to fixup labels throughout
Fix the issue with the ISA bit being lost in fixups that jump to labels
placed just before a section switch. Such a switch leads to the ISA bit
being lost, because GAS concludes there is no code that follows and
therefore the label refers to data. Use the `.insn' pseudo-op to
convince the tool this is not the case.
This lack of label annotation leads to microMIPS compilation errors
like:
mips-linux-gnu-ld: arch/mips/built-in.o: .fixup+0x3b8: Unsupported jump between ISA modes; consider recompiling with interlinking enabled.
mips-linux-gnu-ld: final link failed: Bad value
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8483/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 4a4f9dd..604b558 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -117,6 +117,7 @@
"2: sc %[tmp], (%[addr]) \n"
" beqzl %[tmp], 1b \n"
"3: \n"
+ " .insn \n"
" .section .fixup,\"ax\" \n"
"4: li %[err], %[efault] \n"
" j 3b \n"
@@ -142,6 +143,7 @@
"2: sc %[tmp], (%[addr]) \n"
" bnez %[tmp], 4f \n"
"3: \n"
+ " .insn \n"
" .subsection 2 \n"
"4: b 1b \n"
" .previous \n"
