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| author | Maxim Cournoyer <maxim.cournoyer@gmail.com> | 2024-05-08 10:02:36 -0400 |
|---|---|---|
| committer | Maxim Cournoyer <maxim.cournoyer@gmail.com> | 2024-05-29 22:01:23 -0400 |
| commit | e9e825387f1daefde91b0ba5c5ec3540b0b227fa (patch) | |
| tree | 1f33464ce0c07fab07631edb5d455d44357be5a4 /gnu/packages/patches | |
| parent | 3528d888eed2e226826085f68b40171dee18c5cb (diff) | |
| download | guix-e9e825387f1daefde91b0ba5c5ec3540b0b227fa.tar.gz | |
gnu: Add dwarves.
* gnu/packages/linux.scm (dwarves): New variable. Change-Id: Ib2452868eae76bea95060a70e568dfb6e84b2a75
Diffstat (limited to 'gnu/packages/patches')
| -rw-r--r-- | gnu/packages/patches/dwarves-threading-reproducibility.patch | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/gnu/packages/patches/dwarves-threading-reproducibility.patch b/gnu/packages/patches/dwarves-threading-reproducibility.patch new file mode 100644 index 0000000000..8771ca6b0d --- /dev/null +++ b/gnu/packages/patches/dwarves-threading-reproducibility.patch @@ -0,0 +1,23 @@ +Retrieved from nixpkgs. + +This causes pahole to use '-j1' (single thread) when SOURCE_DATE_EPOCH +is set, to ensure it produces reproducible output. + +diff --git a/pahole.c b/pahole.c +index 6fc4ed6..a4e306f 100644 +--- a/pahole.c ++++ b/pahole.c +@@ -1687,8 +1687,11 @@ static error_t pahole__options_parser(int key, char *arg, + class_name = arg; break; + case 'j': + #if _ELFUTILS_PREREQ(0, 178) +- conf_load.nr_jobs = arg ? atoi(arg) : +- sysconf(_SC_NPROCESSORS_ONLN) * 1.1; ++ // Force single thread if reproducibility is desirable. ++ if (!getenv("SOURCE_DATE_EPOCH")) { ++ conf_load.nr_jobs = arg ? atoi(arg) : ++ sysconf(_SC_NPROCESSORS_ONLN) * 1.1; ++ } + #else + fputs("pahole: Multithreading requires elfutils >= 0.178. Continuing with a single thread...\n", stderr); + #endif |