Date: Mon, 24 Jan 2022 08:54:49 -0800 From: bob prohaska <fbsd@www.zefox.net> To: Mark Millard <marklmi@yahoo.com> Cc: freebsd-arm@freebsd.org, bob prohaska <fbsd@www.zefox.net> Subject: Re: Troubles building world on stable/13 Message-ID: <20220124165449.GA39982@www.zefox.net> In-Reply-To: <8595CFBD-DC65-4472-A0A1-8A7BE1C031D6@yahoo.com> References: <20220121031601.GA26308@www.zefox.net> <FA290367-D4B6-463D-AC67-64F224B3C227@yahoo.com> <FBD31544-6D8F-40DB-BC36-F0B2BBA78A14@yahoo.com> <8595CFBD-DC65-4472-A0A1-8A7BE1C031D6@yahoo.com>
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On Fri, Jan 21, 2022 at 11:14:32PM -0800, Mark Millard wrote:
> > On 2022-Jan-20, at 22:00, Mark Millard <marklmi@yahoo.com> wrote:
> >=20
>=20
> It does no good for me since I do not get a failure,
> but you might try (instead of exectuing the .sh file)
> (I used \'s to split the huge line):
>=20
> lldb -- "/usr/bin/c++" "-cc1" "-triple" "aarch64-unknown-freebsd13.0" "-e=
mit-obj" "--mrelax-relocations" \
> "-disable-free" "-disable-llvm-verifier" "-discard-value-names" "-main-fi=
le-name" "gmock_main.cc" \
> "-mrelocation-model" "static" "-mframe-pointer=3Dnon-leaf" "-fno-rounding=
-math" "-mconstructor-aliases" \
> "-munwind-tables" "-target-cpu" "generic" "-target-feature" "+neon" "-tar=
get-abi" "aapcs" \
> "-fallow-half-arguments-and-returns" "-debug-info-kind=3Dstandalone" "-dw=
arf-version=3D4" \
> "-debugger-tuning=3Dgdb" \
> "-fcoverage-compilation-dir=3D/usr/obj/usr/src/arm64.aarch64/lib/googlete=
st/gmock_main" \
> "-O2" "-Wno-format-zero-length" "-Wsystem-headers" "-Werror" "-Wall" "-Wn=
o-format-y2k" "-W" \
> "-Wno-unused-parameter" "-Wpointer-arith" "-Wreturn-type" "-Wcast-qual" "=
-Wwrite-strings" "-Wswitch" \
> "-Wshadow" "-Wunused-parameter" "-Wcast-align" "-Wchar-subscripts" "-Wred=
undant-decls" \
> "-Wmissing-variable-declarations" "-Wno-empty-body" "-Wno-string-plus-int=
" "-Wno-unused-const-variable" \
> "-Wno-error=3Dunused-but-set-variable" "-Wno-deprecated-declarations" "-W=
no-deprecated-copy" \
> "-Wno-c++11-extensions" "-std=3Dc++11" "-fdeprecated-macro" \
> "-fdebug-compilation-dir=3D/usr/obj/usr/src/arm64.aarch64/lib/googletest/=
gmock_main" \
> "-ferror-limit" "19" "-stack-protector" "2" "-fno-signed-char" "-fgnuc-ve=
rsion=3D4.2.1" \
> "-fcxx-exceptions" "-fexceptions" "-vectorize-loops" "-vectorize-slp" "-f=
addrsig" \
> "-D__GCC_HAVE_DWARF2_CFI_ASM=3D1" "-x" "c++" "gmock_main-f5c28a.cpp"
>=20
> and then "run" at the (lldb) prompt. It might stop and let you
> get a backtrace (bt command) in addition to whatever it reports
> about the stoppage.
That seems to have worked, to some extent. Here's the transcript, in single=
-user mode:
root@pelorus:/usr/src #=20
root@pelorus:/usr/src # lldb -- "/usr/bin/c++" "-cc1" "-triple" "aarch64-un=
known-freebsd13.0" "-emit-obj" "--mrelax-relocations" \
> "-disable-free" "-disable-llvm-verifier" "-discard-value-names" "-main-fi=
le-name" "gmock_main.cc" \
> "-mrelocation-model" "static" "-mframe-pointer=3Dnon-leaf" "-fno-rounding=
-math" "-mconstructor-aliases" \
> "-munwind-tables" "-target-cpu" "generic" "-target-feature" "+neon" "-tar=
get-abi" "aapcs" \
> "-fallow-half-arguments-and-returns" "-debug-info-kind=3Dstandalone" "-dw=
arf-version=3D4" \
> "-debugger-tuning=3Dgdb" \
compilation-dir=3D/usr/obj/usr/src/arm64.aarch64/lib/googletest/gmock_main"=
\
"-O2" "-Wno-format-zero-length" "-Wsystem-headers" "-Werror" "-Wall" "-Wno-=
format-y2k" "-W" \
"-Wno-unused-parameter" "-Wpointer-arith" "-Wreturn-type" "-Wcast-qual" "-W=
write-strings" "-Wswitch" \
"-Wshadow" "-Wunused-parameter" "-Wcast-align" "-Wchar-subscripts" "-Wredun=
dant-decls" \
"-Wmissing-variable-declarations" "-Wno-empty-body" "-Wno-string-plus-int" =
"-Wno-unused-const-variable" \
"-Wno-error=3Dunused-but-set-variable" "-Wno-deprecated-declarations" "-Wno=
-deprecated-copy" \
"-Wno-c++11-extensions" "-std=3Dc++11" "-fdeprecated-macro" \
"-fdebug-compilation-dir=3D/usr/obj/usr/src/arm64.aarch64/lib/googletest/gm=
ock_main" \
"-ferror-limit" "19" "-stack-protector" "2" "-fno-signed-char" "-fgnuc-vers=
ion=3D4.2.1" \
"-fcxx-exceptions" "-fexceptions" "-vectorize-loops" "-vectorize-slp" "-fad=
drsig" \
"-D__GCC_HAVE_DWARF2_CFI_ASM=3D1" "-x" "c++" "gmock_main-f5c28a.cpp"
> "-fcoverage-compilation-dir=3D/usr/obj/usr/src/arm64.aarch64/lib/googlete=
st/gmock_main" \
> "-O2" "-Wno-format-zero-length" "-Wsystem-headers" "-Werror" "-Wall" "-Wn=
o-format-y2k" "-W" \
> "-Wno-unused-parameter" "-Wpointer-arith" "-Wreturn-type" "-Wcast-qual" "=
-Wwrite-strings" "-Wswitch" \
> "-Wshadow" "-Wunused-parameter" "-Wcast-align" "-Wchar-subscripts" "-Wred=
undant-decls" \
> "-Wmissing-variable-declarations" "-Wno-empty-body" "-Wno-string-plus-int=
" "-Wno-unused-const-variable" \
> "-Wno-error=3Dunused-but-set-variable" "-Wno-deprecated-declarations" "-W=
no-deprecated-copy" \
> "-Wno-c++11-extensions" "-std=3Dc++11" "-fdeprecated-macro" \
> "-fdebug-compilation-dir=3D/usr/obj/usr/src/arm64.aarch64/lib/googletest/=
gmock_main" \
> "-ferror-limit" "19" "-stack-protector" "2" "-fno-signed-char" "-fgnuc-ve=
rsion=3D4.2.1" \
> "-fcxx-exceptions" "-fexceptions" "-vectorize-loops" "-vectorize-slp" "-f=
addrsig" \
> "-D__GCC_HAVE_DWARF2_CFI_ASM=3D1" "-x" "c++" "gmock_main-f5c28a.cpp"
(lldb) target create "/usr/bin/c++"
Current executable set to '/usr/bin/c++' (aarch64).
(lldb) settings set -- target.run-args "-cc1" "-triple" "aarch64-unknown-f=
reebsd13.0" "-emit-obj" "--mrelax-relocations" "-disable-free" "-disable-ll=
vm-verifier" "-discard-value-names" "-main-file-name" "gmock_main.cc" "-mre=
location-model" "static" "-mframe-pointer=3Dnon-leaf" "-fno-rounding-math" =
"-mconstructor-aliases" "-munwind-tables" "-target-cpu" "generic" "-target-=
feature" "+neon" "-target-abi" "aapcs" "-fallow-half-arguments-and-returns"=
"-debug-info-kind=3Dstandalone" "-dwarf-version=3D4" "-debugger-tuning=3Dg=
db" "-fcoverage-compilation-dir=3D/usr/obj/usr/src/arm64.aarch64/lib/google=
test/gmock_main" "-O2" "-Wno-format-zero-length" "-Wsystem-headers" "-Werro=
r" "-Wall" "-Wno-format-y2k" "-W" "-Wno-unused-parameter" "-Wpointer-arith"=
"-Wreturn-type" "-Wcast-qual" "-Wwrite-strings" "-Wswitch" "-Wshadow" "-Wu=
nused-parameter" "-Wcast-align" "-Wchar-subscripts" "-Wredundant-decls" "-W=
missing-variable-declarations" "-Wno-empty-body" "-Wno-string-plus-int" "-W=
no-unused-const-variable" "-Wno-error=3Dunused-but-set-variable" "-Wno-depr=
ecated-declarations" "-Wno-deprecated-copy" "-Wno-c++11-extensions" "-std=
=3Dc++11" "-fdeprecated-macro" "-fdebug-compilation-dir=3D/usr/obj/usr/src/=
arm64.aarch64/lib/googletest/gmock_main" "-ferror-limit" "19" "-stack-prote=
ctor" "2" "-fno-signed-char" "-fgnuc-version=3D4.2.1" "-fcxx-exceptions" "-=
fexceptions" "-vectorize-loops" "-vectorize-slp" "-faddrsig" "-D__GCC_HAVE_=
DWARF2_CFI_ASM=3D1" "-x" "c++" "gmock_main-f5c28a.cpp"
(lldb)=20
(lldb) run
Process 58516 launched: '/usr/bin/c++' (aarch64)
Process 58516 stopped
* thread #1, name =3D 'c++', stop reason =3D signal SIGSEGV: invalid addres=
s (fault address: 0x1)
frame #0: 0x0000000002df7444 c++`::ProcessDeclAttributeList() [inlined]=
getPointer at PointerIntPair.h:59:58
56 =09
57 explicit PointerIntPair(PointerTy PtrVal) { initWithPointer(PtrVa=
l); }
58 =09
-> 59 PointerTy getPointer() const { return Info::getPointer(Value); }
60 =09
61 IntType getInt() const { return (IntType)Info::getInt(Value); }
62 =09
(lldb) bt
* thread #1, name =3D 'c++', stop reason =3D signal SIGSEGV: invalid addres=
s (fault address: 0x1)
* frame #0: 0x0000000002df7444 c++`::ProcessDeclAttributeList() [inlined]=
getPointer at PointerIntPair.h:59:58
frame #1: 0x0000000002df7444 c++`::ProcessDeclAttributeList() [inlined]=
isNull at PointerUnion.h:172:43
frame #2: 0x0000000002df7444 c++`::ProcessDeclAttributeList() [inlined]=
empty at TinyPtrVector.h:166:13
frame #3: 0x0000000002df7444 c++`::ProcessDeclAttributeList() [inlined]=
empty at ParsedAttr.h:873:40
frame #4: 0x0000000002df7444 c++`::ProcessDeclAttributeList() at SemaDe=
clAttr.cpp:8449:16
frame #5: 0x000000000317e784 c++`::ActOnClassTemplateSpecialization() a=
t SemaTemplate.cpp:8537:3
(lldb)=20
[repeated bt commands seem to duplicate the same output]
I can't make much sense of it, but perhaps others can. It does look
as if I've somehow corrupted c++. Is there some way to bootstrap
past the defect? All the clean targets I've tried (clean, cleandir,=20
cleanworld, rm -rf /usr/obj, cleandepend) seem to have no effect,
singly and in combination.=20
Is it possible to simply delete /usr/src/contrib/llvm-project and=20
let git reconstruct it, then force a compiler rebuild somwhow?
Thanks very much for reading and all your help!
bob prohaska
=20
=20
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