From: schwab@suse.de (Andreas Schwab)
To: linux-riscv@lists.infradead.org
Subject: [PATCH 3/5] lib: Add umoddi3 and udivmoddi4 of GCC library routines
Date: Tue, 25 Sep 2018 09:20:25 +0200 [thread overview]
Message-ID: <mvmefdicabq.fsf@suse.de> (raw)
In-Reply-To: <CA+ZOyaiJv-NZWk3ec_3zhRTSn7G-NGgyaiPTXOmuWfTWD7KSJw@mail.gmail.com> (Zong Li's message of "Tue, 25 Sep 2018 10:19:55 +0800")
On Sep 25 2018, Zong Li <zongbox@gmail.com> wrote:
> The RV32 need the umoddi3 to do modulo when the operands are long long
> type, like other libraries implementation such as ucmpdi2, lshrdi3 and
> so on. I encounter the undefined reference 'umoddi3' when I use the in
> house dma driver, although it is in house driver, but I think that
> umoddi3 is a common function for RV32.
You probably should use the macros from <asm/div64.h> instead.
Andreas.
--
Andreas Schwab, SUSE Labs, schwab at suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
WARNING: multiple messages have this Message-ID (diff)
From: Andreas Schwab <schwab@suse.de>
To: Zong Li <zongbox@gmail.com>
Cc: vincentc@andestech.com, aou@eecs.berkeley.edu,
zong@andestech.com, palmer@sifive.com,
linux-kernel@vger.kernel.org, hch@infradead.org,
linux-riscv@lists.infradead.org
Subject: Re: [PATCH 3/5] lib: Add umoddi3 and udivmoddi4 of GCC library routines
Date: Tue, 25 Sep 2018 09:20:25 +0200 [thread overview]
Message-ID: <mvmefdicabq.fsf@suse.de> (raw)
Message-ID: <20180925072025.w8Dbmi752pPz-oRltHg_ZurLqQqWaBpXjkAyoLey_0Y@z> (raw)
In-Reply-To: <CA+ZOyaiJv-NZWk3ec_3zhRTSn7G-NGgyaiPTXOmuWfTWD7KSJw@mail.gmail.com> (Zong Li's message of "Tue, 25 Sep 2018 10:19:55 +0800")
On Sep 25 2018, Zong Li <zongbox@gmail.com> wrote:
> The RV32 need the umoddi3 to do modulo when the operands are long long
> type, like other libraries implementation such as ucmpdi2, lshrdi3 and
> so on. I encounter the undefined reference 'umoddi3' when I use the in
> house dma driver, although it is in house driver, but I think that
> umoddi3 is a common function for RV32.
You probably should use the macros from <asm/div64.h> instead.
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
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linux-riscv@lists.infradead.org
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WARNING: multiple messages have this Message-ID (diff)
From: Andreas Schwab <schwab@suse.de>
To: Zong Li <zongbox@gmail.com>
Cc: hch@infradead.org, palmer@sifive.com, aou@eecs.berkeley.edu,
vincentc@andestech.com, zong@andestech.com,
linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/5] lib: Add umoddi3 and udivmoddi4 of GCC library routines
Date: Tue, 25 Sep 2018 09:20:25 +0200 [thread overview]
Message-ID: <mvmefdicabq.fsf@suse.de> (raw)
In-Reply-To: <CA+ZOyaiJv-NZWk3ec_3zhRTSn7G-NGgyaiPTXOmuWfTWD7KSJw@mail.gmail.com> (Zong Li's message of "Tue, 25 Sep 2018 10:19:55 +0800")
On Sep 25 2018, Zong Li <zongbox@gmail.com> wrote:
> The RV32 need the umoddi3 to do modulo when the operands are long long
> type, like other libraries implementation such as ucmpdi2, lshrdi3 and
> so on. I encounter the undefined reference 'umoddi3' when I use the in
> house dma driver, although it is in house driver, but I think that
> umoddi3 is a common function for RV32.
You probably should use the macros from <asm/div64.h> instead.
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
next prev parent reply other threads:[~2018-09-25 7:20 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-18 9:19 [PATCH 0/5] Fix some bugs on RV32 build fail and issue Zong Li
2018-09-18 9:19 ` Zong Li
2018-09-18 9:19 ` [PATCH 1/5] RISC-V: Build tishift only on 64-bit Zong Li
2018-09-18 9:19 ` Zong Li
2018-09-21 6:58 ` Christoph Hellwig
2018-09-21 6:58 ` Christoph Hellwig
2018-09-25 2:33 ` Zong Li
2018-09-25 2:33 ` Zong Li
2018-09-25 2:33 ` Zong Li
2018-09-18 9:19 ` [PATCH 2/5] RISC-V: Use swiotlb on RV64 only Zong Li
2018-09-18 9:19 ` Zong Li
2018-09-21 6:59 ` Christoph Hellwig
2018-09-21 6:59 ` Christoph Hellwig
2018-09-18 9:19 ` [PATCH 3/5] lib: Add umoddi3 and udivmoddi4 of GCC library routines Zong Li
2018-09-18 9:19 ` Zong Li
2018-09-21 7:00 ` Christoph Hellwig
2018-09-21 7:00 ` Christoph Hellwig
2018-09-25 2:19 ` Zong Li
2018-09-25 2:19 ` Zong Li
2018-09-25 2:19 ` Zong Li
2018-09-25 7:20 ` Andreas Schwab [this message]
2018-09-25 7:20 ` Andreas Schwab
2018-09-25 7:20 ` Andreas Schwab
2018-09-26 7:12 ` Zong Li
2018-09-26 7:12 ` Zong Li
2018-09-26 7:12 ` Zong Li
2018-09-25 15:25 ` Christoph Hellwig
2018-09-25 15:25 ` Christoph Hellwig
2018-09-25 15:25 ` Christoph Hellwig
2018-09-26 2:40 ` Zong Li
2018-09-26 2:40 ` Zong Li
2018-09-26 2:40 ` Zong Li
2018-09-18 9:19 ` [PATCH 4/5] RISC-V: Select GENERIC_LIB_UMODDI3 on RV32 Zong Li
2018-09-18 9:19 ` Zong Li
2018-09-18 9:19 ` [PATCH 5/5] RISC-V: Avoid corrupting the upper 32-bit of phys_addr_t in ioremap Zong Li
2018-09-18 9:19 ` Zong Li
2018-09-21 7:00 ` Christoph Hellwig
2018-09-21 7:00 ` Christoph Hellwig
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