Farid Zakaria fzakaria
fzakaria
/ glibc-debug.nix
Created
January 2, 2022 01:40
Build a version of glibc with debug symbols in Nixpkgs
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| with import <nixpkgs> { }; | |
| enableDebugging (glibc.overrideAttrs (o: { | |
| preConfigure = o.preConfigure + '' | |
| export CFLAGS="-Wno-error=maybe-uninitialized $CFLAGS" | |
| ''; | |
| })) |
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| $ ldd $(which bash) | |
| linux-vdso.so.1 (0x00007ffd8e5e8000) | |
| /lib/x86_64-linux-gnu/libnss_cache.so.2 (0x00007fb4d70fa000) | |
| libdl.so.2 => /nix/store/vjq3q7dq8vmc13c3py97v27qwizvq7fd-glibc-2.33-59/lib/libdl.so.2 (0x00007fb4d70f5000) | |
| libc.so.6 => /nix/store/vjq3q7dq8vmc13c3py97v27qwizvq7fd-glibc-2.33-59/lib/libc.so.6 (0x00007fb4d6f30000) | |
| /nix/store/vjq3q7dq8vmc13c3py97v27qwizvq7fd-glibc-2.33-59/lib/ld-linux-x86-64.so.2 => /nix/store/vjq3q7dq8vmc13c3py97v27qwizvq7fd-glibc-2.33-59/lib64/ld-linux-x86-64.so.2 (0x00007fb4d7103000) | |
| $ /nix/store/vjq3q7dq8vmc13c3py97v27qwizvq7fd-glibc-2.33-59/lib/ld-linux-x86-64.so.2 --list $(which bash) | |
| linux-vdso.so.1 (0x00007ffec849c000) | |
| /lib/x86_64-linux-gnu/libnss_cache.so.2 (0x00007f5003e00000) |
fzakaria
/ rpath_total_chromium.rb
Last active
December 13, 2021 19:53
Finding all the total length of all rpath entries needed to search for Chromium
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| #!/usr/bin/env ruby | |
| require 'find' | |
| require 'elftools' | |
| # ldd /nix/store/5v13hyafx34x5sksfr4ifwc6mbpvx3yy-chromium-unwrapped-92.0.4515.107/libexec/chromium/chromium | grep -oE "/nix/store/.* " | |
| ENTRIES = "/nix/store/cvr0kjg2q7z2wwhjblx6c73rv422k8cm-glibc-2.33-47/lib/libdl.so.2 | |
| /nix/store/cvr0kjg2q7z2wwhjblx6c73rv422k8cm-glibc-2.33-47/lib/libpthread.so.0 | |
| /nix/store/4fzxscwhxb1q1jrxg0p3g5c9dgxvlp59-glib-2.68.3/lib/libgobject-2.0.so.0 | |
| /nix/store/4fzxscwhxb1q1jrxg0p3g5c9dgxvlp59-glib-2.68.3/lib/libglib-2.0.so.0 | |
| /nix/store/alrr12qahbxbksi9lhh300s7f83kb7hq-nss-3.68/lib64/libsmime3.so |
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| #!/usr/bin/env ruby | |
| require 'find' | |
| require 'elftools' | |
| STORE = "/nix/store" | |
| puts "Searching /nix/store for rpath entries." | |
| seen = 0 | |
| current = "" |
fzakaria
/ nix_clang_asan_support.diff
Created
November 23, 2021 03:31
Add support to Nix when building with Clang to use the Address Sanitizer (ASan)
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| diff --git a/Makefile b/Makefile | |
| index 5040d2884..ac29e2526 100644 | |
| --- a/Makefile | |
| +++ b/Makefile | |
| @@ -27,11 +27,14 @@ makefiles = \ | |
| OPTIMIZE = 1 | |
| ifeq ($(OPTIMIZE), 1) | |
| - GLOBAL_CXXFLAGS += -O3 | |
| + GLOBAL_CXXFLAGS += -O1 |
fzakaria
/ nix_clang_support.diff
Created
November 23, 2021 03:21
Patch Nix to support building with Clang
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| diff --git a/flake.nix b/flake.nix | |
| index fd5e18429..a9248ef90 100644 | |
| --- a/flake.nix | |
| +++ b/flake.nix | |
| @@ -1,5 +1,6 @@ | |
| { | |
| description = "The purely functional package manager"; | |
| + # make a change to ruin the binary cache | |
| inputs.nixpkgs.url = "nixpkgs/nixos-21.05-small"; |
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| diff --git a/Makefile b/Makefile | |
| index 5040d2884..ac29e2526 100644 | |
| --- a/Makefile | |
| +++ b/Makefile | |
| @@ -27,11 +27,14 @@ makefiles = \ | |
| OPTIMIZE = 1 | |
| ifeq ($(OPTIMIZE), 1) | |
| - GLOBAL_CXXFLAGS += -O3 | |
| + GLOBAL_CXXFLAGS += -O1 |
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| let | |
| nixpkgs = import (builtins.fetchTarball { | |
| name = "nixos-unstable-2020-09-24"; | |
| url = | |
| "https://github.com/nixos/nixpkgs/archive/8ecc61c91a596df7d3293603a9c2384190c1b89a.tar.gz"; | |
| sha256 = "0vhajylsmipjkm5v44n2h0pglcmpvk4mkyvxp7qfvkjdxw21dyml"; | |
| }) { }; | |
| stdenvMinimal = nixpkgs.stdenvNoCC.override { | |
| cc = null; | |
| preHook = ""; |
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| [nix-shell:~/code/nix/playground]$ echo $PATH | tr : '\n' | |
| /nix/store/fgbzvd4c6nly9m4dpczrxybdpkm8mnk3-bash-interactive-4.4-p23/bin | |
| /nix/store/hicfsj7pp72fc96vp1mqjb0qjzf8fiik-patchelf-0.12/bin | |
| /nix/store/nvlnl2swxmk50x25mzn71rhc0gzpylfr-coreutils-8.32/bin | |
| /nix/store/f67dl43kggvml0mnrdcasqh0fw2lx5xr-findutils-4.7.0/bin | |
| /nix/store/mbahsiqqj61wjyh2yyzflxpf35hdpjbz-diffutils-3.7/bin | |
| /nix/store/b3l5zq2nkhfpqrr0lil06dhqyjf5jz38-gnused-4.8/bin | |
| /nix/store/7lkzid5yncibabddzaw4sj13n342jz1s-gnugrep-3.6/bin | |
| /nix/store/b27wld0aqcdspznhxwgmr6cs67kg9lk3-gawk-5.1.0/bin | |
| /nix/store/i92f6n6mb65fzpppl3h4vbm3a2rfyb5n-gnutar-1.34/bin |
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| fixupOutputHooks+=(autoStripNonDeterminism) | |
| autoStripNonDeterminism() { | |
| find $output -type f \ | |
| -exec strip-nondeterminism {} | |
| } |