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| author | Maciej W. Rozycki <macro@codesourcery.com> | 2014-11-15 22:09:31 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-11-24 07:45:36 +0100 |
| commit | 0e525e48f73cc8a4df8da0be77e4146bea85e1a5 (patch) | |
| tree | 44d3ac8b6859b5b45ea9d58a71f7ac9f7a70336b /arch/mips/kernel/syscall.c | |
| parent | b0984c43702f0fe2dbb0c344843e36c8b2cd13f1 (diff) | |
| download | op-kernel-dev-0e525e48f73cc8a4df8da0be77e4146bea85e1a5.zip op-kernel-dev-0e525e48f73cc8a4df8da0be77e4146bea85e1a5.tar.gz | |
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>
Diffstat (limited to 'arch/mips/kernel/syscall.c')
| -rw-r--r-- | arch/mips/kernel/syscall.c | 2 |
1 files changed, 2 insertions, 0 deletions
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 @@ static inline int mips_atomic_set(unsigned long addr, unsigned long new) "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 @@ static inline int mips_atomic_set(unsigned long addr, unsigned long new) "2: sc %[tmp], (%[addr]) \n" " bnez %[tmp], 4f \n" "3: \n" + " .insn \n" " .subsection 2 \n" "4: b 1b \n" " .previous \n" |
