LLDB version 10.0.0 Crash iPhone 11 Pro 13.5

[KingKong5147]

Try to attach to process and get the following error?...

[Diatrus]

This is an arm64e problem and I've had this on my todo list for a while now. Stay tuned.

[KingKong5147]

I look forward too the update :) Hopefully before Xmas would be awesome 😎

Sent from my iPhone

On 16 Sep 2020, at 12:29 am, Hayden notifications@github.com wrote:

 This is an arm64e problem and I've had this on my todo list for a while now. Stay tuned.

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[ArArgon]

LLDB is still not working (Jun 17 2021)...

When executing in mobile:

~ sudo lldb lambda                                                                                                                                               
(lldb) target create "lambda"
Current executable set to '/private/var/mobile/Documents/code/lambda' (arm64).
(lldb) b main
Breakpoint 1: where = lambda`main + 28 at lambda.cpp:12:7, address = 0x0000000100006f58
(lldb) run
lldb(64031,0x16c1af000) malloc: *** error for object 0x102e06f58: pointer being freed was not allocated
lldb(64031,0x16c1af000) malloc: *** set a breakpoint in malloc_error_break to debug
********************
Crash reproducer for lldb version 10.0.0 (https://github.com/ProcursusTeam/Procursus.git revision 4c55e9c553549f0f842d3e03247f7f47be2c6e76)
Swift version 5.3.1 (swift-5.3.1-RELEASE)

Reproducer written to '/var/tmp/reproducer-112c4d'

Before attaching the reproducer to a bug report:
 - Look at the directory to ensure you're willing to share its content.
 - Make sure the reproducer works by replaying the reproducer.

Replay the reproducer with the following command:
lldb -replay /var/tmp/reproducer-112c4d
********************
[1]    64030 abort      sudo lldb lambda

When executing in root:

# sudo lldb lambda
(lldb) target create "lambda"
Current executable set to '/private/var/mobile/Documents/code/lambda' (arm64).
(lldb) b main
Breakpoint 1: where = lambda`main + 28 at lambda.cpp:12:7, address = 0x0000000100006f58
(lldb) run
1 location added to breakpoint 1
[1]    64139 bus error  sudo lldb lambda

[Diatrus]

Do you mind checking this now with the latest LLDB? @KingKong5147 @ArArgon

[KingKong5147]

Sure , I’m away for the next three weeks . When I get back I’ll report back 👍🏻

Sent from my iPhone

On 25 Jun 2021, at 1:03 am, Hayden @.***> wrote:

 Do you mind checking this now with the latest LLDB? @KingKong5147 @ArArgon

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[ArArgon]

Here's what happened on my iPad. @Diatrus Now lldb lets program run, but breakpoints never work either on root or mobile!

A sample C++ program:

#include <functional>
#include <iostream>
#include <algorithm>

using namespace std;

int main() {
    auto f = [] (int a, int b) {
        return a < b;
    };
    int a, b;
    cout << "Number 1:";
    cin >> a;
    cout << "Number 2:";
    cin >> b;
    cout << "Number 1 < Number 2: " << f(a, b) << endl;
    return 0;
}

Compile it: c++ -std=c++17 lambda.cpp -g -o lambda. Then load it into lldb.

Here's what lldb on iOS does:

~ lldb lambda
(lldb) target create "lambda"
Current executable set to '/var/mobile/Documents/code/lambda' (arm64).
(lldb) b 13
Breakpoint 1: where = lambda`main + 60 at lambda.cpp:13:6, address = 0x0000000100006fb0
(lldb) b main
Breakpoint 2: where = lambda`main + 28 at lambda.cpp:12:7, address = 0x0000000100006f90
(lldb) r
1 location added to breakpoint 1
1 location added to breakpoint 2
Process 90913 launched: '/var/mobile/Documents/code/lambda' (arm64)
Number 1:10
Number 2:20
Number 1 < Number 2: 1
Process 90913 exited with status = 0 (0x00000000)
(lldb) q

Debugger does not stop at breakpoints.

Meanwhile on macOS:

~ lldb lambda
(lldb) target create "lambda"
Current executable set to '/Users/***/tmp/lambda' (x86_64).
(lldb) b main
Breakpoint 1: where = lambda`main + 22 at lambda.cpp:12:7, address = 0x00000001000030e6
(lldb) b 13
Breakpoint 2: where = lambda`main + 41 at lambda.cpp:13:6, address = 0x00000001000030f9
(lldb) r
Process 21756 launched: '/Users/***/tmp/lambda' (x86_64)
Process 21756 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
    frame #0: 0x00000001000030e6 lambda`main at lambda.cpp:12:7
   9            return a < b;
   10       };
   11       int a, b;
-> 12       cout << "Number 1:";
   13       cin >> a;
   14       cout << "Number 2:";
   15       cin >> b;
(lldb) n
Process 21756 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 2.1
    frame #0: 0x00000001000030f9 lambda`main at lambda.cpp:13:6
   10       };
   11       int a, b;
   12       cout << "Number 1:";
-> 13       cin >> a;
   14       cout << "Number 2:";
   15       cin >> b;
   16       cout << "Number 1 < Number 2: " << f(a, b) << endl;
(lldb) n
Number 1:100
Process 21756 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = step over
    frame #0: 0x000000010000310d lambda`main at lambda.cpp:14:7
   11       int a, b;
   12       cout << "Number 1:";
   13       cin >> a;
-> 14       cout << "Number 2:";
   15       cin >> b;
   16       cout << "Number 1 < Number 2: " << f(a, b) << endl;
   17       return 0;
(lldb) p a
(int) $0 = 100
(lldb) q
Quitting LLDB will kill one or more processes. Do you really want to proceed: [Y/n] y

lldb on iOS:

lldb version 11.1.0
Swift version 5.4.1 (swift-5.4.1-RELEASE)

iOS Information:

Darwin ***-iPad 20.1.0 Darwin Kernel Version 20.1.0: Fri Oct 30 00:34:17 PDT 2020; root:xnu-7195.42.3~1/RELEASE_ARM64_T8020 iPad8,9 arm64 J417AP Darwin