Hi,
When I run the test_vim9_expr.vim test on MacOS with Vim 8.2.2029),
I see that VIm crashes with a bad instruction exception.
* thread #1, queue = 'com.apple.main-thread', stop reason =
EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)
I see this crash only when building Vim with debug symbols (-g -O0).
If I build Vim without the debug symbols, I don't see this problem.
I also don't see this crash with the ASAN and UBSAN builds.
Is this a bug in the compiler? I am using the following Clang compiler on
Catalina:
Apple clang version 12.0.0 (clang-1200.0.32.21)
Target: x86_64-apple-darwin19.6.0
The complete traceback is below:
* thread #1, queue = 'com.apple.main-thread', stop reason =
EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)
* frame #0: 0x00007fff6af56fca
libsystem_c.dylib`__chk_fail_overflow.cold.1 + 16
frame #1: 0x00007fff6af54214 libsystem_c.dylib`__chk_fail_overflow + 9
frame #2: 0x00007fff6af543f0 libsystem_c.dylib`__strcpy_chk + 83
frame #3: 0x000000010029287b
vim`add_vim9_script_var(di=0x0000000100606550, tv=0x00007ffeefbf9178,
type=0x0000000000000000) at vim9script.c:604:2
frame #4: 0x00000001000826a7 vim`set_var_const(name="FuncRef",
type=0x0000000000000000, tv_arg=0x00007ffeefbf9178, copy=0, flags=0) at
evalvars.c:3203:6
frame #5: 0x00000001000606c1 vim`set_var_lval(lp=0x00007ffeefbf8f28,
endp="", rettv=0x00007ffeefbf9178, copy=0, flags=0, op="=") at eval.c:1339:6
frame #6: 0x000000010007e93b vim`ex_let_one(arg="FuncRef",
tv=0x00007ffeefbf9178, copy=0, flags=0, endchars="=", op="=") at
evalvars.c:1473:3
frame #7: 0x000000010007ddc5 vim`ex_let_vars(arg_start="FuncRef",
tv=0x00007ffeefbf9178, copy=0, semicolon=0, var_count=0, flags=0, op="=")
at evalvars.c:922:6
frame #8: 0x000000010007d52e vim`ex_let(eap=0x00007ffeefbf9368) at
evalvars.c:888:12
frame #9: 0x000000010007cdad vim`ex_var(eap=0x00007ffeefbf9368) at
evalvars.c:699:5
frame #10: 0x0000000100097602
vim`do_one_cmd(cmdlinep=0x00007ffeefbf9610, sourcing=1,
cstack=0x00007ffeefbf9648, fgetline=(vim`getsourceline at
scriptfile.c:1746), cookie=0x00007ffeefbf9d60) at ex_docmd.c:2576:2
frame #11: 0x000000010009451b vim`do_cmdline(cmdline="vim9script",
fgetline=(vim`getsourceline at scriptfile.c:1746),
cookie=0x00007ffeefbf9d60, flags=7) at ex_docmd.c:993:17
frame #12: 0x00000001001d6ac5 vim`do_source(fname="Xdef",
check_other=0, is_vimrc=0, ret_sid=0x0000000000000000) at
scriptfile.c:1436:5
frame #13: 0x00000001001d5e7f vim`cmd_source(fname="Xdef",
eap=0x00007ffeefbf9fc8) at scriptfile.c:971:14
frame #14: 0x00000001001d5d9c vim`ex_source(eap=0x00007ffeefbf9fc8) at
scriptfile.c:997:2
frame #15: 0x0000000100097602
vim`do_one_cmd(cmdlinep=0x00007ffeefbfa270, sourcing=1,
cstack=0x00007ffeefbfa2a8, fgetline=0x0000000000000000,
cookie=0x0000000000000000) at ex_docmd.c:2576:2
frame #16: 0x000000010009451b vim`do_cmdline(cmdline=" so Xdef",
fgetline=0x0000000000000000, cookie=0x0000000000000000, flags=11) at
ex_docmd.c:993:17
frame #17: 0x00000001000953e4 vim`do_cmdline_cmd(cmd=" so Xdef") at
ex_docmd.c:594:12
frame #18: 0x0000000100287bf3
vim`call_def_function(ufunc=0x000000010182f760, argc_arg=0,
argv=0x00007ffeefbfbbe0, partial=0x0000000000000000,
rettv=0x00007ffeefbfbe30) at vim9execute.c:1090:7
frame #19: 0x000000010026c0c2 vim`call_user_func(fp=0x000000010182f760,
argcount=0, argvars=0x00007ffeefbfbbe0, rettv=0x00007ffeefbfbe30,
funcexe=0x00007ffeefbfbd78, selfdict=0x0000000000000000) at
userfunc.c:1480:2
frame #20: 0x000000010026be44
vim`call_user_func_check(fp=0x000000010182f760, argcount=0,
argvars=0x00007ffeefbfbbe0, rettv=0x00007ffeefbfbe30,
funcexe=0x00007ffeefbfbd78, selfdict=0x0000000000000000) at
userfunc.c:1871:2
frame #21: 0x000000010026ae66
vim`call_func(funcname="Test_epxr7_funcref", len=-1,
rettv=0x00007ffeefbfbe30, argcount_in=0, argvars_in=0x00007ffeefbfbbe0,
funcexe=0x00007ffeefbfbd78) at userfunc.c:2329:11
frame #22: 0x000000010026a670
vim`get_func_tv(name="Test_epxr7_funcref", len=-1,
rettv=0x00007ffeefbfbe30, arg=0x00007ffeefbfbe60,
evalarg=0x00007ffeefbfbdb8, funcexe=0x00007ffeefbfbd78) at userfunc.c:779:8
frame #23: 0x0000000100272c48 vim`ex_call(eap=0x00007ffeefbfc018) at
userfunc.c:4218:6
frame #24: 0x0000000100097602
vim`do_one_cmd(cmdlinep=0x00007ffeefbfc2c0, sourcing=1,
cstack=0x00007ffeefbfc2f8, fgetline=(vim`get_func_line at userfunc.c:4401),
cookie=0x0000000102824400) at ex_docmd.c:2576:2
frame #25: 0x000000010009451b vim`do_cmdline(cmdline="call
Test_epxr7_funcref()", fgetline=(vim`get_func_line at userfunc.c:4401),
cookie=0x0000000102824400, flags=3) at ex_docmd.c:993:17
frame #26: 0x0000000100067245 vim`ex_execute(eap=0x00007ffeefbfcb98) at
eval.c:5935:6
frame #27: 0x0000000100097602
vim`do_one_cmd(cmdlinep=0x00007ffeefbfce40, sourcing=1,
cstack=0x00007ffeefbfce78, fgetline=(vim`get_func_line at userfunc.c:4401),
cookie=0x0000000102824400) at ex_docmd.c:2576:2
frame #28: 0x000000010009451b
vim`do_cmdline(cmdline=0x0000000000000000, fgetline=(vim`get_func_line at
userfunc.c:4401), cookie=0x0000000102824400, flags=7) at ex_docmd.c:993:17
frame #29: 0x000000010026ce1a vim`call_user_func(fp=0x0000000101806e50,
argcount=1, argvars=0x00007ffeefbfde60, rettv=0x00007ffeefbfe0b0,
funcexe=0x00007ffeefbfdff8, selfdict=0x0000000000000000) at
userfunc.c:1731:2
frame #30: 0x000000010026be44
vim`call_user_func_check(fp=0x0000000101806e50, argcount=1,
argvars=0x00007ffeefbfde60, rettv=0x00007ffeefbfe0b0,
funcexe=0x00007ffeefbfdff8, selfdict=0x0000000000000000) at
userfunc.c:1871:2
frame #31: 0x000000010026ae66 vim`call_func(funcname="RunTheTest",
len=-1, rettv=0x00007ffeefbfe0b0, argcount_in=1,
argvars_in=0x00007ffeefbfde60, funcexe=0x00007ffeefbfdff8) at
userfunc.c:2329:11
frame #32: 0x000000010026a670 vim`get_func_tv(name="RunTheTest",
len=-1, rettv=0x00007ffeefbfe0b0, arg=0x00007ffeefbfe0e0,
evalarg=0x00007ffeefbfe038, funcexe=0x00007ffeefbfdff8) at userfunc.c:779:8
frame #33: 0x0000000100272c48 vim`ex_call(eap=0x00007ffeefbfe298) at
userfunc.c:4218:6
frame #34: 0x0000000100097602
vim`do_one_cmd(cmdlinep=0x00007ffeefbfe540, sourcing=1,
cstack=0x00007ffeefbfe578, fgetline=(vim`get_loop_line at ex_docmd.c:1442),
cookie=0x00007ffeefbfe468) at ex_docmd.c:2576:2
frame #35: 0x000000010009451b vim`do_cmdline(cmdline="\" This script is
sourced while editing the .vim file with the tests.",
fgetline=(vim`getsourceline at scriptfile.c:1746),
cookie=0x00007ffeefbfec90, flags=7) at ex_docmd.c:993:17
frame #36: 0x00000001001d6ac5 vim`do_source(fname="runtest.vim",
check_other=0, is_vimrc=0, ret_sid=0x0000000000000000) at
scriptfile.c:1436:5
frame #37: 0x00000001001d5e7f vim`cmd_source(fname="runtest.vim",
eap=0x00007ffeefbfeef8) at scriptfile.c:971:14
frame #38: 0x00000001001d5d9c vim`ex_source(eap=0x00007ffeefbfeef8) at
scriptfile.c:997:2
frame #39: 0x0000000100097602
vim`do_one_cmd(cmdlinep=0x00007ffeefbff1a0, sourcing=1,
cstack=0x00007ffeefbff1d8, fgetline=0x0000000000000000,
cookie=0x0000000000000000) at ex_docmd.c:2576:2
frame #40: 0x000000010009451b vim`do_cmdline(cmdline="so runtest.vim",
fgetline=0x0000000000000000, cookie=0x0000000000000000, flags=11) at
ex_docmd.c:993:17
frame #41: 0x00000001000953e4 vim`do_cmdline_cmd(cmd="so runtest.vim")
at ex_docmd.c:594:12
frame #42: 0x00000001002eb621
vim`exe_commands(parmp=0x0000000100353dc0) at main.c:3046:2
frame #43: 0x00000001002ea672 vim`vim_main2 at main.c:763:2
frame #44: 0x00000001002e7f73 vim`main(argc=11,
argv=0x00007ffeefbff8e8) at main.c:412:12
frame #45: 0x00007fff6ae87cc9 libdyld.dylib`start + 1
frame #46: 0x00007fff6ae87cc9 libdyld.dylib`start + 1
- Yegappan
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