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Mahdi Dibaiee
2023-12-06 18:15:32 +00:00
parent f3fc53e5e6
commit 158340b507
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_posts/2022-06-16-rust-boxed-str-vs-string.md
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@ -5,7 +5,6 @@ subtitle: Using `rust-lldb` to understand rust memory internals
date: 2022-06-16 00:00:00
permalink: rust-box-str-vs-string/
categories: programming
author: Mahdi
---
Today I and a friend went down a rabbit hole about Rust and how it manages the
@ -28,10 +27,10 @@ bytes).
I will be using `rust-lldb` throughout this post to understand what is going on
in the rust programs we write and run. The source code for this blog post is
available on
[mdibaiee/rust-memory-playground](https://git.mahdi.blog/mahdi/rust-memory-playground).
[rust-memory-playground](https://git.theread.me/thereadme/rust-memory-playground).
```bash
git clone https://git.mahdi.blog/mahdi/rust-memory-playground
git clone https://git.theread.me/thereadme/rust-memory-playground
cd rust-memory-playground
```
@ -63,7 +62,7 @@ $ cargo build && rust-lldb target/debug/stack-program
Breakpoint 1: where = stack-program`stack_program::add_ten::h42edbf0bdcb04851 + 24 at main.rs:3:5, address = 0x0000000100001354
(lldb) run
Process 65188 launched: '/Users/mahdi/workshop/rust-memory-playground/target/debug/stack-program' (arm64)
Process 65188 launched: '/Users/workshop/rust-memory-playground/target/debug/stack-program' (arm64)
Process 65188 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
frame #0: 0x0000000100001354 stack-program`stack_program::add_ten::h42edbf0bdcb04851(a=5) at main.rs:3:5
@ -154,7 +153,7 @@ $ cargo build && rust-lldb target/debug/stack-and-heap-program
Breakpoint 1: where = stack-and-heap-program`stack_and_heap_program::main::ha895783273646dc7 + 100 at main.rs:4:5, address = 0x0000000100005264
(lldb) run
Process 67451 launched: '/Users/mahdi/workshop/rust-memory-playground/target/debug/stack-and-heap-program' (arm64)
Process 67451 launched: '/Users/workshop/rust-memory-playground/target/debug/stack-and-heap-program' (arm64)
Process 67451 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
frame #0: 0x0000000100005264 stack-and-heap-program`stack_and_heap_program::main::ha895783273646dc7 at main.rs:4:5
@ -202,7 +201,7 @@ And here we go again:
Breakpoint 1: where = string-program`string_program::main::h64ca96ee87b0ceaf + 44 at main.rs:3:5, address = 0x000000010000476c
(lldb) run
Process 68317 launched: '/Users/mahdi/workshop/rust-memory-playground/target/debug/string-program' (arm64)
Process 68317 launched: '/Users/workshop/rust-memory-playground/target/debug/string-program' (arm64)
Process 68317 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
frame #0: 0x000000010000476c string-program`string_program::main::h64ca96ee87b0ceaf at main.rs:3:5