On Mon, Feb 22, 2021 at 06:37:54PM -0800, Vineet Gupta wrote: > The syscall TRAP instruction used to be 4 bytes on legacy ARCompact > based ARC700 cores. Since then ARCv2 (circa 2014) and the upcoming ARCv3 > use the same 2-byte TRAP_S instruction. > > To ease porting of software to new ISA, special case ARC700. > > This is the only change needed to get strace working on 64-bit ARCv3 > cores (kudos to strace for making porting so easy) > > Signed-off-by: Vineet Gupta <vgu...@synopsys.com> > --- > src/linux/arc/raw_syscall.h | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-) > > diff --git a/src/linux/arc/raw_syscall.h b/src/linux/arc/raw_syscall.h > index 6e60a6112b31..f54fe06f33df 100644 > --- a/src/linux/arc/raw_syscall.h > +++ b/src/linux/arc/raw_syscall.h > @@ -21,10 +21,8 @@ raw_syscall_0(const kernel_ulong_t nr, kernel_ulong_t *err) > > # ifdef __A7__ > # define ARC_TRAP_INSN "trap0" > -# elif defined __HS__ > -# define ARC_TRAP_INSN "trap_s 0 " > # else > -# error unrecognized arc > +# define ARC_TRAP_INSN "trap_s 0 " > # endif > > __asm__ __volatile__(ARC_TRAP_INSN
Applied, thanks. -- ldv _______________________________________________ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc
