https://llvm.org/bugs/show_bug.cgi?id=25587
Bug ID: 25587
Summary: assertion failure "cast<Ty>() argument of incompatible
type" when linking FreeBSD base system with lld
-Bstatic
Product: lld
Version: unspecified
Hardware: PC
OS: FreeBSD
Status: NEW
Severity: normal
Priority: P
Component: All Bugs
Assignee: unassignedb...@nondot.org
Reporter: ema...@freebsd.org
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Commandline:
/tank/emaste/src/freebsd-xlld/tools_bin/ld
--sysroot=/tank/emaste/obj/tank/emaste/src/freebsd-xlld/tmp -Bstatic -o as
/tank/emaste/obj/tank/emaste/src/freebsd-xlld/tmp/usr/lib/crt1.o
/tank/emaste/obj/tank/emaste/src/freebsd-xlld/tmp/usr/lib/crti.o
/tank/emaste/obj/tank/emaste/src/freebsd-xlld/tmp/usr/lib/crtbeginT.o
-L/tank/emaste/obj/tank/emaste/src/freebsd-xlld/tmp/usr/lib
-L/tank/emaste/obj/tank/emaste/src/freebsd-xlld/tmp/lib
-L/tank/emaste/obj/tank/emaste/src/freebsd-xlld/tmp/usr/lib app.o as.o
atof-generic.o atof-ieee.o cond.o depend.o dw2gencfi.o dwarf2dbg.o ecoff.o
ehopt.o expr.o flonum-copy.o flonum-konst.o flonum-mult.o frags.o hash.o
input-file.o input-scrub.o listing.o literal.o macro.o messages.o obj-elf.o
output-file.o read.o sb.o stabs.o subsegs.o symbols.o write.o tc-i386.o
../libbfd/libbfd.a ../libiberty/libiberty.a ../libopcodes/libopcodes.a -lgcc
-lgcc_eh -lc -lgcc -lgcc_eh
/tank/emaste/obj/tank/emaste/src/freebsd-xlld/tmp/usr/lib/crtend.o
/tank/emaste/obj/tank/emaste/src/freebsd-xlld/tmp/usr/lib/crtn.o
(lldb) Process 3889 launched: '/tank/emaste/src/llvm/build-debug/bin/lld'
(x86_64)
Assertion failed: (isa<X>(Val) && "cast<Ty>() argument of incompatible type!"),
function cast, file ../include/llvm/Support/Casting.h, line 237.
Process 3889 stopped
(lldb) * thread #1: tid = 105373, 0x0000000805762aaa libc.so.7`__sys_thr_kill +
10 at thr_kill.S:3, stop reason = signal SIGABRT
frame #0: 0x0000000805762aaa libc.so.7`__sys_thr_kill + 10 at thr_kill.S:3
1 #include "compat.h"
2 #include "SYS.h"
-> 3 RSYSCALL(thr_kill)
4 .section .note.GNU-stack,"",%progbits
(lldb) bt
* thread #1: tid = 105373, 0x0000000805762aaa libc.so.7`__sys_thr_kill + 10 at
thr_kill.S:3, stop reason = signal SIGABRT
* frame #0: 0x0000000805762aaa libc.so.7`__sys_thr_kill + 10 at thr_kill.S:3
frame #1: 0x0000000805762a96 libc.so.7`__raise(s=<unavailable>) + 38 at
raise.c:51
frame #2: 0x0000000805762a19 libc.so.7`abort + 73 at abort.c:65
frame #3: 0x00000008057c93c1 libc.so.7`__assert(func=<unavailable>,
file=<unavailable>, line=<unavailable>, failedexpr=<unavailable>) + 81 at
assert.c:54
frame #4: 0x0000000002928a29
lld`llvm::cast_retty<lld::elf2::MergeInputSection<llvm::object::ELFType<(Val=0x00000008064bd2a0)1,
true> >,
lld::elf2::InputSectionBase<llvm::object::ELFType<(llvm::support::endianness)1,
true> >*>::ret_type
llvm::cast<lld::elf2::MergeInputSection<llvm::object::ELFType<(llvm::support::endianness)1,
true> >,
lld::elf2::InputSectionBase<llvm::object::ELFType<(llvm::support::endianness)1,
true> >
>(lld::elf2::InputSectionBase<llvm::object::ELFType<(llvm::support::endianness)1,
true> >*) + 73 at Casting.h:237
frame #5: 0x0000000002954e30
lld`llvm::object::ELFFile<llvm::object::ELFType<(File=0x00000008064533c0,
RI=0x0000000806488020)1, true> >::uintX_t
lld::elf2::getLocalRelTarget<llvm::object::ELFType<(llvm::support::endianness)1,
true>,
true>(lld::elf2::ObjectFile<llvm::object::ELFType<(llvm::support::endianness)1,
true> > const&,
llvm::object::Elf_Rel_Impl<llvm::object::ELFType<(llvm::support::endianness)1,
true>, true> const&) + 544 at OutputSections.h:819
frame #6: 0x000000000292cb9e lld`void
lld::elf2::InputSectionBase<llvm::object::ELFType<(this=0x00000008064bd000,
Buf=0x000000080705b000, BufEnd=0x000000080705b27b, Rels=iterator_range<const
llvm::object::Elf_Rel_Impl<llvm::object::ELFType<1, true>, true> *> at
0x00007fffffffbef8)1, true> >::relocate<true>(unsigned char*, unsigned char*,
llvm::iterator_range<llvm::object::Elf_Rel_Impl<llvm::object::ELFType<(llvm::support::endianness)1,
true>, true> const*>) + 766 at InputSection.cpp:123
frame #7: 0x000000000292c819
lld`lld::elf2::InputSection<llvm::object::ELFType<(this=0x00000008064bd000,
Buf=0x000000080705b000)1, true> >::writeTo(unsigned char*) + 425 at
InputSection.cpp:168
frame #8: 0x00000000029671c7
lld`lld::elf2::OutputSection<llvm::object::ELFType<(this=0x0000000806c15000,
Buf=0x000000080705b000)1, true> >::writeTo(unsigned char*) + 359 at
OutputSections.cpp:863
frame #9: 0x0000000002a08571 lld`(anonymous
namespace)::Writer<llvm::object::ELFType<(this=0x00007fffffffc430)1, true>
>::writeSections() + 673 at Writer.cpp:990
frame #10: 0x00000000029ef7f8 lld`(anonymous
namespace)::Writer<llvm::object::ELFType<(this=0x00007fffffffc430)1, true>
>::run() + 136 at Writer.cpp:147
frame #11: 0x0000000002a36109 lld`void
lld::elf2::writeResult<llvm::object::ELFType<(Symtab=0x00007fffffffd340)1,
true>
>(lld::elf2::SymbolTable<llvm::object::ELFType<(llvm::support::endianness)1,
true> >*) + 1401 at Writer.cpp:135
frame #12: 0x00000000028f57ae lld`void
lld::elf2::LinkerDriver::link<llvm::object::ELFType<(this=0x00007fffffffd990,
Args=0x00007fffffffd7f0)1, true> >(llvm::opt::InputArgList&) + 2366 at
Driver.cpp:287
frame #13: 0x00000000028edbf6
lld`lld::elf2::LinkerDriver::main(this=0x00007fffffffd990,
ArgsArr=ArrayRef<const char *> at 0x00007fffffffd948) + 358 at Driver.cpp:126
frame #14: 0x00000000028eda60 lld`lld::elf2::link(Args=ArrayRef<const char
*> at 0x00007fffffffdba0) + 144 at Driver.cpp:37
frame #15: 0x000000000044c580
lld`lld::UniversalDriver::link(args=MutableArrayRef<const char *> at
0x00007fffffffded8, diagnostics=0x000000000460e4b8) + 944 at
UniversalDriver.cpp:208
frame #16: 0x000000000044c081 lld`main(argc=54, argv=0x00007fffffffdfc0) +
97 at lld.cpp:35
frame #17: 0x000000000044bf3f lld`_start(ap=<unavailable>,
cleanup=<unavailable>) + 367 at crt1.c:78
(lldb) frame select 4
frame #4: 0x0000000002928a29
lld`llvm::cast_retty<lld::elf2::MergeInputSection<llvm::object::ELFType<(Val=0x00000008064bd2a0)1,
true> >,
lld::elf2::InputSectionBase<llvm::object::ELFType<(llvm::support::endianness)1,
true> >*>::ret_type
llvm::cast<lld::elf2::MergeInputSection<llvm::object::ELFType<(llvm::support::endianness)1,
true> >,
lld::elf2::InputSectionBase<llvm::object::ELFType<(llvm::support::endianness)1,
true> >
>(lld::elf2::InputSectionBase<llvm::object::ELFType<(llvm::support::endianness)1,
true> >*) + 73 at Casting.h:237
234
235 template <class X, class Y>
236 inline typename cast_retty<X, Y *>::ret_type cast(Y *Val) {
-> 237 assert(isa<X>(Val) && "cast<Ty>() argument of incompatible type!");
238 return cast_convert_val<X, Y*,
239 typename
simplify_type<Y*>::SimpleType>::doit(Val);
240 }
(lldb) up
frame #5: 0x0000000002954e30
lld`llvm::object::ELFFile<llvm::object::ELFType<(File=0x00000008064533c0,
RI=0x0000000806488020)1, true> >::uintX_t
lld::elf2::getLocalRelTarget<llvm::object::ELFType<(llvm::support::endianness)1,
true>,
true>(lld::elf2::ObjectFile<llvm::object::ELFType<(llvm::support::endianness)1,
true> > const&,
llvm::object::Elf_Rel_Impl<llvm::object::ELFType<(llvm::support::endianness)1,
true>, true> const&) + 544 at OutputSections.h:819
(lldb) up
frame #6: 0x000000000292cb9e lld`void
lld::elf2::InputSectionBase<llvm::object::ELFType<(this=0x00000008064bd000,
Buf=0x000000080705b000, BufEnd=0x000000080705b27b, Rels=iterator_range<const
llvm::object::Elf_Rel_Impl<llvm::object::ELFType<1, true>, true> *> at
0x00007fffffffbef8)1, true> >::relocate<true>(unsigned char*, unsigned char*,
llvm::iterator_range<llvm::object::Elf_Rel_Impl<llvm::object::ELFType<(llvm::support::endianness)1,
true>, true> const*>) + 766 at InputSection.cpp:123
120 // resolved so we don't allocate a SymbolBody.
121 const Elf_Shdr *SymTab = File->getSymbolTable();
122 if (SymIndex < SymTab->sh_info) {
-> 123 uintX_t SymVA = getLocalRelTarget(*File, RI);
124 Target->relocateOne(BufLoc, BufEnd, Type, AddrLoc, SymVA);
125 continue;
126 }
(lldb)
I'll see about building a reduced test case
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