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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=DYACz/I1g+dSB0kophMnPCCHB6QICvtlGA92yZe+gYY=; b=FguISRBV64MfgFdK0NaLWLCX5HyQkbKrtTSZDOEUZCoVpsb7AcAKSpaO7OPmrnZz7M wWgnq/kxzkzQM7uupOCYkDUBok+IyFhZPZnuPsVudK4+mchM0mBSO5tbF09GmXpIaSfi TMTe1IcDfFDz1ie3g5AMzP87E8MKfVvAWlZHQMREdz/qVYynUiJFILjlb4hwf9gCumPv ODIB4Et8HTN/cOQp7w/u9+f06q5iY2Fa1M1zz57L35DGUfFl1oxhXsnHBtVZMGq3zuUU 3wjn/+UOqPBnoqH9mlV0HHzZ9t7W9utCTv6G0u1LVPfoSEkC6pHR9GYVk6xF77HhWhEB TYvQ== X-Gm-Message-State: APjAAAW3ruRDx0Nmpj6JONekDf9ikIFX38Si7ZoggpZk8OhdyyJJc94I jsnmsIpFikFxg9nOP2NIYDx4Ujw+wIor7Hy0Mk/DIZ7/sX2oCQ== X-Google-Smtp-Source: APXvYqxTmaYDFG3ZXScdJw+hjwefx16I5STUuXnqfYnVrGwE3O5vAbHtNfa0UjSmg3uOMxdhvisTBwmH9gGqXJNCZEc= X-Received: by 2002:ac2:5198:: with SMTP id u24mr5478980lfi.137.1582592816434; Mon, 24 Feb 2020 17:06:56 -0800 (PST) MIME-Version: 1.0 References: <20200224183413.13629-1-vgupta@synopsys.com> In-Reply-To: <20200224183413.13629-1-vgupta@synopsys.com> From: Alistair Francis Date: Mon, 24 Feb 2020 16:59:20 -0800 Message-ID: Subject: Re: [PATCH] Force 64-bit time based syscalls for TIMESIZE==64 on 32-bit arches To: Vineet Gupta X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200224_170658_602798_52DC2B67 X-CRM114-Status: GOOD ( 10.28 ) X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: arcml , GNU C Library , Lukasz Majewski , Arnd Bergmann Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+linux-snps-arc=archiver.kernel.org@lists.infradead.org On Mon, Feb 24, 2020 at 10:34 AM Vineet Gupta wrote: > > This provides better out-of-box support for 32-bit arches with 64-bit > time_t > > Signed-off-by: Vineet Gupta > --- > sysdeps/unix/sysv/linux/generic/sysdep.h | 48 ++++++++++++++++++++++++ > 1 file changed, 48 insertions(+) > > diff --git a/sysdeps/unix/sysv/linux/generic/sysdep.h b/sysdeps/unix/sysv/linux/generic/sysdep.h > index 23defce7c3e1..27b0079a2a71 100644 > --- a/sysdeps/unix/sysv/linux/generic/sysdep.h > +++ b/sysdeps/unix/sysv/linux/generic/sysdep.h > @@ -17,6 +17,7 @@ > . */ > > #include > +#include > #include > #include > #include > @@ -33,3 +34,50 @@ > #define __NR_pread __NR_pread64 > #define __NR_pwrite __NR_pwrite64 > #endif > + > +/* Override syscalls for asm-generic ABIs with 64-bit time. */ > +#if __WORDSIZE == 32 && __TIMESIZE == 64 > + > +# undef __NR_futex > +# define __NR_futex __NR_futex_time64 I think you should do what RV32 does and wrap these in ifndef's Alistair > + > +# undef __NR_rt_sigtimedwait > +# define __NR_rt_sigtimedwait __NR_rt_sigtimedwait_time64 > + > +# undef __NR_ppoll > +# define __NR_ppoll __NR_ppoll_time64 > + > +# undef __NR_utimensat > +# define __NR_utimensat __NR_utimensat_time64 > + > +# undef __NR_pselect6 > +# define __NR_pselect6 __NR_pselect6_time64 > + > +# undef __NR_recvmmsg > +# define __NR_recvmmsg __NR_recvmmsg_time64 > + > +# undef __NR_semtimedop > +# define __NR_semtimedop __NR_semtimedop_time64 > + > +# undef __NR_mq_timedreceive > +# define __NR_mq_timedreceive __NR_mq_timedreceive_time64 > + > +# undef __NR_mq_timedsend > +# define __NR_mq_timedsend __NR_mq_timedsend_time64 > + > +# undef __NR_clock_getres > +# define __NR_clock_getres __NR_clock_getres_time64 > + > +# undef __NR_timerfd_settime > +# define __NR_timerfd_settime __NR_timerfd_settime64 > + > +# undef __NR_timerfd_gettime > +# define __NR_timerfd_gettime __NR_timerfd_gettime64 > + > +# undef __NR_sched_rr_get_interval > +# define __NR_sched_rr_get_interval __NR_sched_rr_get_interval_time64 > + > +# undef __NR_clock_adjtime > +# define __NR_clock_adjtime __NR_clock_adjtime64 > + > +#endif > -- > 2.20.1 > _______________________________________________ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc