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Re: [Qemu-devel] [Qemu-ppc] [PULL 00/27] ppc-for-4.0 queue 20181213
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From: |
Howard Spoelstra |
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Subject: |
Re: [Qemu-devel] [Qemu-ppc] [PULL 00/27] ppc-for-4.0 queue 20181213 |
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Date: |
Mon, 17 Dec 2018 08:41:32 +0100 |
On Mon, Dec 17, 2018 at 4:31 AM David Gibson
<address@hidden> wrote:
>
> On Fri, Dec 14, 2018 at 06:49:55PM +0100, Cédric Le Goater wrote:
> > On 12/14/18 5:03 PM, Peter Maydell wrote:
> > > On Thu, 13 Dec 2018 at 04:01, David Gibson <address@hidden> wrote:
> > >>
> > >> The following changes since commit
> > >> 4b3aab204204ca742836219b97b538d90584f4f2:
> > >>
> > >> Merge remote-tracking branch
> > >> 'remotes/vivier2/tags/trivial-patches-pull-request' into staging
> > >> (2018-12-11 22:26:44 +0000)
> > >>
> > >> are available in the Git repository at:
> > >>
> > >> git://github.com/dgibson/qemu.git tags/ppc-for-4.0-20181213
> > >>
> > >> for you to fetch changes up to 67888a17b6683600ae3fa64ca275c737ba8a9a45:
> > >>
> > >> spapr/xive: use the VCPU id as a NVT identifier (2018-12-13 09:44:04
> > >> +1100)
> > >>
> > >> ----------------------------------------------------------------
> > >> ppc patch queue 2018-12-13
> > >>
> > >> Here's the first ppc and spapr pull request for 4.0. Highlights are:
> > >>
> > >> * The start of support for the POWER9 "XIVE" interrupt controller
> > >> (not complete enough to use yet, but we're getting there)
> > >> * A number of g_new vs. g_malloc cleanups
> > >> * Some IRQ wiring cleanups
> > >> * A fix for how we advertise NUMA nodes to the guest for pseries
> > >>
> > >> ---------------------------------------------------------------
> > >
> > >
> > > Compile errors in the windows cross-build.
> >
> > are you compiling with the mingw64-* packages ? as documented in :
> >
> > https://wiki.qemu.org/Hosts/W32
> >
> > > These look like
> > > they're assumptions that "long" is 64 bits, which it is not on Windows.
> > > For instance the PPC_BIT macro should be using the ULL suffix, not UL
> > > ("UL" is almost always a bug: either the constant is 32-bit, in
> > > which case "U" is what you want, or it's 64-bit and you need "ULL").
> >
> > ok. These definitions come from our skiboot firmware which I wanted
> > to keep as it was. It seems I will need to adapt.
> >
> > > Using __builtin_ffsl() directly in target/ppc/cpu.h also looks
> > > a bit dubious -- this should be rephrased to use ctz32() or ctz64()
> > > instead.
> >
> > ok. I will work on a fix.
>
> So, I tried to confirm the problem, before applying Cédric's fix, but
> I don't seem to be able to. I'm getting a bunch of failures in the
> windows cross-build on master, which look like gcc8 problems - but
> nothing new or different in my tree.
>
> $ ./configure --cross-prefix=i686-w64-mingw32-
>
> [...]
>
> $ make -k
>
> CHK version_gen.h
> CC block/sheepdog.o
> block/sheepdog.c: In function 'find_vdi_name':
> block/sheepdog.c:1239:5: error: 'strncpy' specified bound 256 equals
> destination size [-Werror=stringop-truncation]
> strncpy(buf + SD_MAX_VDI_LEN, tag, SD_MAX_VDI_TAG_LEN);
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> cc1: all warnings being treated as errors
> make: *** [/home/dwg/src/qemu/rules.mak:69: block/sheepdog.o] Error 1
> CC hw/acpi/core.o
> In function 'acpi_table_install',
> inlined from 'acpi_table_add' at hw/acpi/core.c:296:5:
> hw/acpi/core.c:184:9: error: 'strncpy' specified bound 4 equals destination
> size [-Werror=stringop-truncation]
> strncpy(ext_hdr->sig, hdrs->sig, sizeof ext_hdr->sig);
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> hw/acpi/core.c:203:9: error: 'strncpy' specified bound 6 equals destination
> size [-Werror=stringop-truncation]
> strncpy(ext_hdr->oem_id, hdrs->oem_id, sizeof ext_hdr->oem_id);
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> hw/acpi/core.c:207:9: error: 'strncpy' specified bound 8 equals destination
> size [-Werror=stringop-truncation]
> strncpy(ext_hdr->oem_table_id, hdrs->oem_table_id,
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> sizeof ext_hdr->oem_table_id);
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> hw/acpi/core.c:216:9: error: 'strncpy' specified bound 4 equals destination
> size [-Werror=stringop-truncation]
> strncpy(ext_hdr->asl_compiler_id, hdrs->asl_compiler_id,
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> sizeof ext_hdr->asl_compiler_id);
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> cc1: all warnings being treated as errors
> make: *** [/home/dwg/src/qemu/rules.mak:69: hw/acpi/core.o] Error 1
> CC hw/acpi/aml-build.o
> hw/acpi/aml-build.c: In function 'build_header':
> hw/acpi/aml-build.c:1535:9: error: 'strncpy' specified bound 6 equals
> destination size [-Werror=stringop-truncation]
> strncpy((char *)h->oem_id, oem_id, sizeof h->oem_id);
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> hw/acpi/aml-build.c:1541:9: error: 'strncpy' specified bound 8 equals
> destination size [-Werror=stringop-truncation]
> strncpy((char *)h->oem_table_id, oem_table_id,
> sizeof(h->oem_table_id));
>
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> cc1: all warnings being treated as errors
> make: *** [/home/dwg/src/qemu/rules.mak:69: hw/acpi/aml-build.o] Error 1
> CC migration/global_state.o
> migration/global_state.c: In function 'global_state_store_running':
> migration/global_state.c:45:5: error: 'strncpy' specified bound 100 equals
> destination size [-Werror=stringop-truncation]
> strncpy((char *)global_state.runstate,
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> state, sizeof(global_state.runstate));
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> cc1: all warnings being treated as errors
> make: *** [/home/dwg/src/qemu/rules.mak:69: migration/global_state.o] Error 1
> make: Target 'all' not remade because of errors.
>
>
> >
> > Thanks,
> >
> > C.
> >
> >
> > > In file included from /home/petmay01/qemu-for-merges/hw/intc/xive.c:13:0:
> > > /home/petmay01/qemu-for-merges/hw/intc/xive.c: In function
> > > 'xive_router_notify':
> > > /home/petmay01/qemu-for-merges/target/ppc/cpu.h:76:33: error: overflow
> > > in implicit constant conversion [-Werror=overflow]
> > > #define PPC_BITMASK(bs, be) ((PPC_BIT(bs) - PPC_BIT(be)) |
> > > PPC_BIT(bs))
> > > ^
> > > /home/petmay01/qemu-for-merges/target/ppc/cpu.h:84:50: note: in
> > > definition of macro 'MASK_TO_LSH'
> > > # define MASK_TO_LSH(m) (__builtin_ffsl(m) - 1)
> > > ^
> > > /home/petmay01/qemu-for-merges/include/hw/ppc/xive_regs.h:129:34:
> > > note: in expansion of macro 'GETFIELD'
> > > #define GETFIELD_BE64(m, v) GETFIELD(m, be64_to_cpu(v))
> > > ^
> > > /home/petmay01/qemu-for-merges/hw/intc/xive.c:1366:28: note: in
> > > expansion of macro 'GETFIELD_BE64'
> > > GETFIELD_BE64(EAS_END_BLOCK, eas.w),
> > > ^
> > > /home/petmay01/qemu-for-merges/include/hw/ppc/xive_regs.h:120:25:
> > > note: in expansion of macro 'PPC_BITMASK'
> > > #define EAS_END_BLOCK PPC_BITMASK(4, 7) /* Destination END
> > > block# */
> > > ^
> > > /home/petmay01/qemu-for-merges/hw/intc/xive.c:1366:42: note: in
> > > expansion of macro 'EAS_END_BLOCK'
> > > GETFIELD_BE64(EAS_END_BLOCK, eas.w),
> > > ^
> > > /home/petmay01/qemu-for-merges/target/ppc/cpu.h:89:46: error: right
> > > shift count is negative [-Werror=shift-count-negative]
> > > #define GETFIELD(m, v) (((v) & (m)) >> MASK_TO_LSH(m))
> > > ^
> > > /home/petmay01/qemu-for-merges/include/hw/ppc/xive_regs.h:129:34:
> > > note: in expansion of macro 'GETFIELD'
> > > #define GETFIELD_BE64(m, v) GETFIELD(m, be64_to_cpu(v))
> > > ^
> > > /home/petmay01/qemu-for-merges/hw/intc/xive.c:1366:28: note: in
> > > expansion of macro 'GETFIELD_BE64'
> > > GETFIELD_BE64(EAS_END_BLOCK, eas.w),
> > > ^
> > > /home/petmay01/qemu-for-merges/target/ppc/cpu.h:76:33: error: overflow
> > > in implicit constant conversion [-Werror=overflow]
> > > #define PPC_BITMASK(bs, be) ((PPC_BIT(bs) - PPC_BIT(be)) |
> > > PPC_BIT(bs))
> > > ^
> > > /home/petmay01/qemu-for-merges/target/ppc/cpu.h:84:50: note: in
> > > definition of macro 'MASK_TO_LSH'
> > > # define MASK_TO_LSH(m) (__builtin_ffsl(m) - 1)
> > > ^
> > > /home/petmay01/qemu-for-merges/include/hw/ppc/xive_regs.h:129:34:
> > > note: in expansion of macro 'GETFIELD'
> > > #define GETFIELD_BE64(m, v) GETFIELD(m, be64_to_cpu(v))
> > > ^
> > > /home/petmay01/qemu-for-merges/hw/intc/xive.c:1367:28: note: in
> > > expansion of macro 'GETFIELD_BE64'
> > > GETFIELD_BE64(EAS_END_INDEX, eas.w),
> > > ^
> > > /home/petmay01/qemu-for-merges/include/hw/ppc/xive_regs.h:121:25:
> > > note: in expansion of macro 'PPC_BITMASK'
> > > #define EAS_END_INDEX PPC_BITMASK(8, 31) /* Destination END
> > > index */
> > > ^
> > > /home/petmay01/qemu-for-merges/hw/intc/xive.c:1367:42: note: in
> > > expansion of macro 'EAS_END_INDEX'
> > > GETFIELD_BE64(EAS_END_INDEX, eas.w),
> > > ^
> > > /home/petmay01/qemu-for-merges/target/ppc/cpu.h:89:46: error: right
> > > shift count is negative [-Werror=shift-count-negative]
> > > #define GETFIELD(m, v) (((v) & (m)) >> MASK_TO_LSH(m))
> > > ^
> > > /home/petmay01/qemu-for-merges/include/hw/ppc/xive_regs.h:129:34:
> > > note: in expansion of macro 'GETFIELD'
> > > #define GETFIELD_BE64(m, v) GETFIELD(m, be64_to_cpu(v))
> > > ^
> > > /home/petmay01/qemu-for-merges/hw/intc/xive.c:1367:28: note: in
> > > expansion of macro 'GETFIELD_BE64'
> > > GETFIELD_BE64(EAS_END_INDEX, eas.w),
> > > ^
> > > /home/petmay01/qemu-for-merges/hw/intc/xive.c: In function
> > > 'xive_eas_pic_print_info':
> > > /home/petmay01/qemu-for-merges/target/ppc/cpu.h:76:33: error: overflow
> > > in implicit constant conversion [-Werror=overflow]
> > > #define PPC_BITMASK(bs, be) ((PPC_BIT(bs) - PPC_BIT(be)) |
> > > PPC_BIT(bs))
> > > ^
> > > /home/petmay01/qemu-for-merges/target/ppc/cpu.h:84:50: note: in
> > > definition of macro 'MASK_TO_LSH'
> > > # define MASK_TO_LSH(m) (__builtin_ffsl(m) - 1)
> > > ^
> > > /home/petmay01/qemu-for-merges/include/hw/ppc/xive_regs.h:129:34:
> > > note: in expansion of macro 'GETFIELD'
> > > #define GETFIELD_BE64(m, v) GETFIELD(m, be64_to_cpu(v))
> > > ^
> > > /home/petmay01/qemu-for-merges/hw/intc/xive.c:1400:31: note: in
> > > expansion of macro 'GETFIELD_BE64'
> > > (uint8_t) GETFIELD_BE64(EAS_END_BLOCK, eas->w),
> > > ^
> > > /home/petmay01/qemu-for-merges/include/hw/ppc/xive_regs.h:120:25:
> > > note: in expansion of macro 'PPC_BITMASK'
> > > #define EAS_END_BLOCK PPC_BITMASK(4, 7) /* Destination END
> > > block# */
> > > ^
> > > /home/petmay01/qemu-for-merges/hw/intc/xive.c:1400:45: note: in
> > > expansion of macro 'EAS_END_BLOCK'
> > > (uint8_t) GETFIELD_BE64(EAS_END_BLOCK, eas->w),
> > > ^
> > > /home/petmay01/qemu-for-merges/target/ppc/cpu.h:89:46: error: right
> > > shift count is negative [-Werror=shift-count-negative]
> > > #define GETFIELD(m, v) (((v) & (m)) >> MASK_TO_LSH(m))
> > > ^
> > > /home/petmay01/qemu-for-merges/include/hw/ppc/xive_regs.h:129:34:
> > > note: in expansion of macro 'GETFIELD'
> > > #define GETFIELD_BE64(m, v) GETFIELD(m, be64_to_cpu(v))
> > > ^
> > > /home/petmay01/qemu-for-merges/hw/intc/xive.c:1400:31: note: in
> > > expansion of macro 'GETFIELD_BE64'
> > > (uint8_t) GETFIELD_BE64(EAS_END_BLOCK, eas->w),
> > > ^
> > > /home/petmay01/qemu-for-merges/include/hw/ppc/xive_regs.h:120:25:
> > > note: in expansion of macro 'PPC_BITMASK'
> > > #define EAS_END_BLOCK PPC_BITMASK(4, 7) /* Destination END
> > > block# */
> > > ^
> > > /home/petmay01/qemu-for-merges/hw/intc/xive.c:1400:45: note: in
> > > expansion of macro 'EAS_END_BLOCK'
> > > (uint8_t) GETFIELD_BE64(EAS_END_BLOCK, eas->w),
> > > ^
> > > /home/petmay01/qemu-for-merges/target/ppc/cpu.h:89:46: error: right
> > > shift count is negative [-Werror=shift-count-negative]
> > > #define GETFIELD(m, v) (((v) & (m)) >> MASK_TO_LSH(m))
> > > ^
> > > /home/petmay01/qemu-for-merges/include/hw/ppc/xive_regs.h:129:34:
> > > note: in expansion of macro 'GETFIELD'
> > > #define GETFIELD_BE64(m, v) GETFIELD(m, be64_to_cpu(v))
> > > ^
> > > /home/petmay01/qemu-for-merges/hw/intc/xive.c:1400:31: note: in
> > > expansion of macro 'GETFIELD_BE64'
> > > (uint8_t) GETFIELD_BE64(EAS_END_BLOCK, eas->w),
> > > ^
> > > /home/petmay01/qemu-for-merges/target/ppc/cpu.h:76:33: error: overflow
> > > in implicit constant conversion [-Werror=overflow]
> > > #define PPC_BITMASK(bs, be) ((PPC_BIT(bs) - PPC_BIT(be)) |
> > > PPC_BIT(bs))
> > > ^
> > > /home/petmay01/qemu-for-merges/target/ppc/cpu.h:84:50: note: in
> > > definition of macro 'MASK_TO_LSH'
> > > # define MASK_TO_LSH(m) (__builtin_ffsl(m) - 1)
> > > ^
> > > /home/petmay01/qemu-for-merges/include/hw/ppc/xive_regs.h:129:34:
> > > note: in expansion of macro 'GETFIELD'
> > > #define GETFIELD_BE64(m, v) GETFIELD(m, be64_to_cpu(v))
> > > ^
> > > /home/petmay01/qemu-for-merges/hw/intc/xive.c:1401:31: note: in
> > > expansion of macro 'GETFIELD_BE64'
> > > (uint32_t) GETFIELD_BE64(EAS_END_INDEX, eas->w),
> > > ^
> > > /home/petmay01/qemu-for-merges/include/hw/ppc/xive_regs.h:121:25:
> > > note: in expansion of macro 'PPC_BITMASK'
> > > #define EAS_END_INDEX PPC_BITMASK(8, 31) /* Destination END
> > > index */
> > > ^
> > > /home/petmay01/qemu-for-merges/hw/intc/xive.c:1401:45: note: in
> > > expansion of macro 'EAS_END_INDEX'
> > > (uint32_t) GETFIELD_BE64(EAS_END_INDEX, eas->w),
> > > ^
> > > /home/petmay01/qemu-for-merges/target/ppc/cpu.h:89:46: error: right
> > > shift count is negative [-Werror=shift-count-negative]
> > > #define GETFIELD(m, v) (((v) & (m)) >> MASK_TO_LSH(m))
> > > ^
> > > /home/petmay01/qemu-for-merges/include/hw/ppc/xive_regs.h:129:34:
> > > note: in expansion of macro 'GETFIELD'
> > > #define GETFIELD_BE64(m, v) GETFIELD(m, be64_to_cpu(v))
> > > ^
> > > /home/petmay01/qemu-for-merges/hw/intc/xive.c:1401:31: note: in
> > > expansion of macro 'GETFIELD_BE64'
> > > (uint32_t) GETFIELD_BE64(EAS_END_INDEX, eas->w),
> > > ^
> > >
> > >
> > > thanks
> > > -- PMM
> > >
> >
>
> --
> David Gibson | I'll have my music baroque, and my code
> david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
> | _way_ _around_!
> http://www.ozlabs.org/~dgibson
Hi,
We had a discussion about the strncpy errors and windows builds
SIGSEGV-ing here:
https://lists.nongnu.org/archive/html/qemu-devel/2018-08/msg03310.html
A solution was suggested here:
https://lists.nongnu.org/archive/html/qemu-devel/2018-08/msg03761.html.
Nevertheless, I still compile with --disable-werror and
--disable-stack-protector to get a working binary. (Cross-compiling on
Fedora 29).
Best,
Howard
- [Qemu-devel] [PULL 24/27] ppc/xive: introduce a simplified XIVE presenter, (continued)
- [Qemu-devel] [PULL 24/27] ppc/xive: introduce a simplified XIVE presenter, David Gibson, 2018/12/12
- [Qemu-devel] [PULL 27/27] spapr/xive: use the VCPU id as a NVT identifier, David Gibson, 2018/12/12
- [Qemu-devel] [PULL 26/27] spapr/xive: introduce a XIVE interrupt controller, David Gibson, 2018/12/12
- [Qemu-devel] [PULL 22/27] ppc/xive: add support for the END Event State Buffers, David Gibson, 2018/12/12
- Re: [Qemu-devel] [PULL 00/27] ppc-for-4.0 queue 20181213, no-reply, 2018/12/13
- Re: [Qemu-devel] [PULL 00/27] ppc-for-4.0 queue 20181213, Peter Maydell, 2018/12/14
- Re: [Qemu-devel] [PULL 00/27] ppc-for-4.0 queue 20181213, David Gibson, 2018/12/16