Re: build failure of malta_qemu_32r6_defconfig
On Sun, Apr 18, 2021 at 12:01:36AM +0100, Sudip Mukherjee wrote: > Hi Thomas, > > On Fri, Apr 9, 2021 at 1:17 PM Thomas Bogendoerfer > wrote: > > > > On Thu, Apr 08, 2021 at 09:42:11AM +0800, YunQiang Su wrote: > > > Sudip Mukherjee 于2021年4月8日周四 上午2:26写道: > > > > > > > > Hi Thomas, > > > > > > > > I was building v5.10.28 with malta_qemu_32r6_defconfig and noticed that > > > > it fails to build, so tried next-20210407 to see if it has been fixed. > > > > But linux-next also has the issue with gcc-10. > > > > > > > > The error is: > > > > > > > > ./arch/mips/include/asm/vdso/gettimeofday.h: In function > > > > '__vdso_clock_gettime': > > > > ./arch/mips/include/asm/vdso/gettimeofday.h:103:2: error: the register > > > > 'lo' cannot be clobbered in 'asm' for the current target > > > > 103 | asm volatile( > > > > | ^~~ > > > > > > this operation try to save lo and hi register, while they are not > > > exisiting on r6. > > > We are working on figure out a patch for it. > > > > looks like there is already a patch in patchwork, which just needs > > a workup: > > > > https://patchwork.kernel.org/project/linux-mips/patch/20200801154401.4177009-1-romain.na...@gmail.com/ > > Looks like there has been no response to it since last 8 months. Do > you want me to respin it and send a proper patch? that would me fantastic and much appreciated :-) Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea.[ RFC1925, 2.3 ]
Re: build failure of malta_qemu_32r6_defconfig
Hi Thomas, On Fri, Apr 9, 2021 at 1:17 PM Thomas Bogendoerfer wrote: > > On Thu, Apr 08, 2021 at 09:42:11AM +0800, YunQiang Su wrote: > > Sudip Mukherjee 于2021年4月8日周四 上午2:26写道: > > > > > > Hi Thomas, > > > > > > I was building v5.10.28 with malta_qemu_32r6_defconfig and noticed that > > > it fails to build, so tried next-20210407 to see if it has been fixed. > > > But linux-next also has the issue with gcc-10. > > > > > > The error is: > > > > > > ./arch/mips/include/asm/vdso/gettimeofday.h: In function > > > '__vdso_clock_gettime': > > > ./arch/mips/include/asm/vdso/gettimeofday.h:103:2: error: the register > > > 'lo' cannot be clobbered in 'asm' for the current target > > > 103 | asm volatile( > > > | ^~~ > > > > this operation try to save lo and hi register, while they are not > > exisiting on r6. > > We are working on figure out a patch for it. > > looks like there is already a patch in patchwork, which just needs > a workup: > > https://patchwork.kernel.org/project/linux-mips/patch/20200801154401.4177009-1-romain.na...@gmail.com/ Looks like there has been no response to it since last 8 months. Do you want me to respin it and send a proper patch? -- Regards Sudip
Re: build failure of malta_qemu_32r6_defconfig
On Thu, Apr 08, 2021 at 09:42:11AM +0800, YunQiang Su wrote: > Sudip Mukherjee 于2021年4月8日周四 上午2:26写道: > > > > Hi Thomas, > > > > I was building v5.10.28 with malta_qemu_32r6_defconfig and noticed that > > it fails to build, so tried next-20210407 to see if it has been fixed. > > But linux-next also has the issue with gcc-10. > > > > The error is: > > > > ./arch/mips/include/asm/vdso/gettimeofday.h: In function > > '__vdso_clock_gettime': > > ./arch/mips/include/asm/vdso/gettimeofday.h:103:2: error: the register 'lo' > > cannot be clobbered in 'asm' for the current target > > 103 | asm volatile( > > | ^~~ > > this operation try to save lo and hi register, while they are not > exisiting on r6. > We are working on figure out a patch for it. looks like there is already a patch in patchwork, which just needs a workup: https://patchwork.kernel.org/project/linux-mips/patch/20200801154401.4177009-1-romain.na...@gmail.com/ Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea.[ RFC1925, 2.3 ]
Re: build failure of malta_qemu_32r6_defconfig
Sudip Mukherjee 于2021年4月8日周四 上午2:26写道: > > Hi Thomas, > > I was building v5.10.28 with malta_qemu_32r6_defconfig and noticed that > it fails to build, so tried next-20210407 to see if it has been fixed. > But linux-next also has the issue with gcc-10. > > The error is: > > ./arch/mips/include/asm/vdso/gettimeofday.h: In function > '__vdso_clock_gettime': > ./arch/mips/include/asm/vdso/gettimeofday.h:103:2: error: the register 'lo' > cannot be clobbered in 'asm' for the current target > 103 | asm volatile( > | ^~~ this operation try to save lo and hi register, while they are not exisiting on r6. We are working on figure out a patch for it. > ./arch/mips/include/asm/vdso/gettimeofday.h: In function > '__vdso_gettimeofday': > ./arch/mips/include/asm/vdso/gettimeofday.h:33:2: error: the register 'lo' > cannot be clobbered in 'asm' for the current target >33 | asm volatile( > | ^~~ > ./arch/mips/include/asm/vdso/gettimeofday.h: In function > '__vdso_clock_getres': > ./arch/mips/include/asm/vdso/gettimeofday.h:123:2: error: the register 'lo' > cannot be clobbered in 'asm' for the current target > 123 | asm volatile( > | ^~~ > ./arch/mips/include/asm/vdso/gettimeofday.h: In function > '__vdso_clock_gettime64': > ./arch/mips/include/asm/vdso/gettimeofday.h:57:2: error: the register 'lo' > cannot be clobbered in 'asm' for the current target >57 | asm volatile( > | ^~~ > > Any idea how to fix this? Please ignore if it has been reported before. > > > -- > Regards > Sudip -- YunQiang Su
build failure of malta_qemu_32r6_defconfig
Hi Thomas, I was building v5.10.28 with malta_qemu_32r6_defconfig and noticed that it fails to build, so tried next-20210407 to see if it has been fixed. But linux-next also has the issue with gcc-10. The error is: ./arch/mips/include/asm/vdso/gettimeofday.h: In function '__vdso_clock_gettime': ./arch/mips/include/asm/vdso/gettimeofday.h:103:2: error: the register 'lo' cannot be clobbered in 'asm' for the current target 103 | asm volatile( | ^~~ ./arch/mips/include/asm/vdso/gettimeofday.h: In function '__vdso_gettimeofday': ./arch/mips/include/asm/vdso/gettimeofday.h:33:2: error: the register 'lo' cannot be clobbered in 'asm' for the current target 33 | asm volatile( | ^~~ ./arch/mips/include/asm/vdso/gettimeofday.h: In function '__vdso_clock_getres': ./arch/mips/include/asm/vdso/gettimeofday.h:123:2: error: the register 'lo' cannot be clobbered in 'asm' for the current target 123 | asm volatile( | ^~~ ./arch/mips/include/asm/vdso/gettimeofday.h: In function '__vdso_clock_gettime64': ./arch/mips/include/asm/vdso/gettimeofday.h:57:2: error: the register 'lo' cannot be clobbered in 'asm' for the current target 57 | asm volatile( | ^~~ Any idea how to fix this? Please ignore if it has been reported before. -- Regards Sudip