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Bug #14734
closed
trunk + gcc-8 + mac SEGV
Status:
Third Party's Issue
Assignee:
-
Target version:
-
ruby -v:
ruby 2.6.0dev (2018-05-03 trunk 63333) [x86_64-darwin15]
Description
- ruby 2.6.0dev (2018-05-03 trunk 63333) [x86_64-darwin15]
- gcc-8 (Homebrew GCC 8.1.0) 8.1.0
- Mac OS X 10.11.6 Build 15G20015
Might perhaps be a gcc issue but report here anyways. I see this immediate SEGV at process startup:
zsh % lldb -- ./miniruby -v
(lldb) target create "./miniruby"
Current executable set to './miniruby' (x86_64).
(lldb) settings set -- target.run-args "-v"
(lldb) run
Process 57317 launched: './miniruby' (x86_64)
Process 57317 stopped
* thread #1: tid = 0x14d3fc, 0x00000001001d5b6e miniruby`rb_intern3(name="__autoload__", len=12, enc=0x00000001007028e0) + 20 at symbol.c:592, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
frame #0: 0x00000001001d5b6e miniruby`rb_intern3(name="__autoload__", len=12, enc=0x00000001007028e0) + 20 at symbol.c:592
589
590 ID
591 rb_intern3(const char *name, long len, rb_encoding *enc)
-> 592 {
593 VALUE sym;
594 struct RString fake_str;
595 VALUE str = rb_setup_fake_str(&fake_str, name, len, enc);
(lldb) bt
* thread #1: tid = 0x14d3fc, 0x00000001001d5b6e miniruby`rb_intern3(name="__autoload__", len=12, enc=0x00000001007028e0) + 20 at symbol.c:592, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
* frame #0: 0x00000001001d5b6e miniruby`rb_intern3(name="__autoload__", len=12, enc=0x00000001007028e0) + 20 at symbol.c:592
frame #1: 0x00000001001d5d51 miniruby`rb_intern2(name="__autoload__", len=12) + 43 at symbol.c:643
frame #2: 0x00000001002001a8 miniruby`Init_var_tables + 50 at variable.c:55
frame #3: 0x00000001000a8e38 miniruby`rb_call_inits + 24 at inits.c:22
frame #4: 0x000000010007ea77 miniruby`ruby_setup + 229 at eval.c:72
frame #5: 0x000000010007eac4 miniruby`ruby_init + 13 at eval.c:89
frame #6: 0x0000000100000f2c miniruby`main(argc=2, argv=0x00007fff5fbfdbf8) + 88 at main.c:41
frame #7: 0x00007fff966975ad libdyld.dylib`start + 1
frame #8: 0x00007fff966975ad libdyld.dylib`start + 1
(lldb) disassemble -n rb_intern3
miniruby`rb_intern3:
0x1001d5b5a <+0>: pushq %rbp
0x1001d5b5b <+1>: movq %rsp, %rbp
0x1001d5b5e <+4>: subq $0x60, %rsp
0x1001d5b62 <+8>: movq %rdi, -0x48(%rbp)
0x1001d5b66 <+12>: movq %rsi, -0x50(%rbp)
0x1001d5b6a <+16>: movq %rdx, -0x58(%rbp)
-> 0x1001d5b6e <+20>: movq %fs:0x0, %rax
0x1001d5b77 <+29>: movq %rax, -0x8(%rbp)
0x1001d5b7b <+33>: xorl %eax, %eax
0x1001d5b7d <+35>: movq -0x58(%rbp), %rcx
0x1001d5b81 <+39>: movq -0x50(%rbp), %rdx
0x1001d5b85 <+43>: movq -0x48(%rbp), %rsi
0x1001d5b89 <+47>: leaq -0x30(%rbp), %rax
0x1001d5b8d <+51>: movq %rax, %rdi
0x1001d5b90 <+54>: callq 0x1001b1a62 ; rb_setup_fake_str at string.c:372
0x1001d5b95 <+59>: movq %rax, -0x40(%rbp)
0x1001d5b99 <+63>: movq -0x40(%rbp), %rax
0x1001d5b9d <+67>: movq %rax, %rdi
0x1001d5ba0 <+70>: callq 0x1001d3978 ; rb_obj_freeze_inline at ruby.h:1316
0x1001d5ba5 <+75>: movq -0x40(%rbp), %rax
0x1001d5ba9 <+79>: movq %rax, %rdi
0x1001d5bac <+82>: callq 0x1001d5abd ; lookup_str_sym at symbol.c:569
0x1001d5bb1 <+87>: movq %rax, -0x38(%rbp)
0x1001d5bb5 <+91>: cmpq $0x0, -0x38(%rbp)
0x1001d5bba <+96>: je 0x1001d5bca ; <+112> at symbol.c:600
0x1001d5bbc <+98>: movq -0x38(%rbp), %rax
0x1001d5bc0 <+102>: movq %rax, %rdi
0x1001d5bc3 <+105>: callq 0x1001d5f14 ; rb_sym2id at symbol.c:736
0x1001d5bc8 <+110>: jmp 0x1001d5bf6 ; <+156> at symbol.c:602
0x1001d5bca <+112>: movq -0x58(%rbp), %rdx
0x1001d5bce <+116>: movq -0x50(%rbp), %rcx
0x1001d5bd2 <+120>: movq -0x48(%rbp), %rax
0x1001d5bd6 <+124>: movq %rcx, %rsi
0x1001d5bd9 <+127>: movq %rax, %rdi
0x1001d5bdc <+130>: callq 0x1001b2aeb ; rb_enc_str_new at string.c:783
0x1001d5be1 <+135>: movq %rax, -0x40(%rbp)
0x1001d5be5 <+139>: movq -0x40(%rbp), %rax
0x1001d5be9 <+143>: movl $0x1, %esi
0x1001d5bee <+148>: movq %rax, %rdi
0x1001d5bf1 <+151>: callq 0x1001d5c4e ; intern_str at symbol.c:620
0x1001d5bf6 <+156>: movq -0x8(%rbp), %rcx
0x1001d5bfa <+160>: xorq %fs:0x0, %rcx
0x1001d5c03 <+169>: je 0x1001d5c0a ; <+176> at symbol.c:602
0x1001d5c05 <+171>: callq 0x100239c70 ; symbol stub for: __stack_chk_fail
0x1001d5c0a <+176>: leave
0x1001d5c0b <+177>: retq
(lldb) register read
General Purpose Registers:
rax = 0x0000000100256ef0 "__autoload__"
rbx = 0x0000000000000000
rcx = 0x000000000000000c
rdx = 0x00000001007028e0
rdi = 0x0000000100256ef0 "__autoload__"
rsi = 0x000000000000000c
rbp = 0x00007fff5fbfda30
rsp = 0x00007fff5fbfd9d0
r8 = 0x0000000000000001
r9 = 0x0000000000000030
r10 = 0x0000000100700000
r11 = 0x0000000000000000
r12 = 0x0000000000000000
r13 = 0x0000000000000000
r14 = 0x0000000000000000
r15 = 0x0000000000000000
rip = 0x00000001001d5b6e miniruby`rb_intern3 + 20 at symbol.c:592
rflags = 0x0000000000010202
cs = 0x000000000000002b
fs = 0x0000000000000000
gs = 0x0000000000000000
(lldb)
Updated by shyouhei (Shyouhei Urabe) almost 7 years ago
- Status changed from Open to Third Party's Issue
OK, could reproduce without ruby. Filed an issue in GCC bugzilla.
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