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Add usage of git subtree to readme

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This commit is contained in:
Antoni Boucher 2023-06-03 09:04:12 -04:00
parent 8c2b14f708
commit c8376e4c78
1 changed files with 7 additions and 1 deletions
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8
Readme.md
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@ -193,7 +193,7 @@ Using git-subtree with `rustc` requires a patched git to make it work.
The PR that is needed is [here](https://github.com/gitgitgadget/git/pull/493).
Use the following instructions to install it:
```
```bash
git clone git@github.com:tqc/git.git
cd git
git checkout tqc/subtree
@ -204,6 +204,12 @@ make
cp git-subtree ~/bin
```
Then, do a sync with this command:
```bash
PATH="$HOME/bin:$PATH" ~/bin/git-subtree push -P compiler/rustc_codegen_gcc/ ../rustc_codegen_gcc/ sync_branch_name
```
### How to use [mem-trace](https://github.com/antoyo/mem-trace)
`rustc` needs to be built without `jemalloc` so that `mem-trace` can overload `malloc` since `jemalloc` is linked statically, so a `LD_PRELOAD`-ed library won't a chance to intercept the calls to `malloc`.