Merge #319160: pahole: 1.26 -> 1.27

...into staging

pkgs/by-name/pa/pahole/package.nix

@@ -9,14 +9,15 @@
 , argp-standalone
 , musl-obstack
 , nixosTests
+, fetchpatch
 }:
 
 stdenv.mkDerivation rec {
   pname = "pahole";
-  version = "1.26";
+  version = "1.27";
   src = fetchzip {
     url = "https://git.kernel.org/pub/scm/devel/pahole/pahole.git/snapshot/pahole-${version}.tar.gz";
-    hash = "sha256-Lf9Z4vHRFplMrUf4VhJ7EDPn+S4RaS1Emm0wyEcG2HU=";
+    hash = "sha256-BwA17lc2yegmOzLfoIu8OmG/PVdc+4sOGzB8Jc4ZjGM=";
   };
 
   nativeBuildInputs = [ cmake pkg-config ];
@@ -26,7 +27,16 @@ stdenv.mkDerivation rec {
     musl-obstack
   ];
 
-  patches = [ ./threading-reproducibility.patch ];
+  patches = [
+    # https://github.com/acmel/dwarves/pull/51 / https://lkml.kernel.org/r/20240626032253.3406460-1-asmadeus@codewreck.org
+    ./threading-reproducibility.patch
+    # https://github.com/acmel/dwarves/issues/53
+    (fetchpatch {
+      name = "fix-clang-btf-generation-bug.patch";
+      url = "https://github.com/acmel/dwarves/commit/6a2b27c0f512619b0e7a769a18a0fb05bb3789a5.patch";
+      hash = "sha256-Le1BAew/a/QKkYNLgSQxEvZ9mEEglUw8URwz1kiheeE=";
+    })
+  ];
 
   # Put libraries in "lib" subdirectory, not top level of $out
   cmakeFlags = [ "-D__LIB=lib" "-DLIBBPF_EMBEDDED=OFF" ];

pkgs/by-name/pa/pahole/threading-reproducibility.patch

@@ -1,18 +1,15 @@
 diff --git a/pahole.c b/pahole.c
-index 6fc4ed6..a4e306f 100644
+index 954498d2ad4f..2b010658330c 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
+@@ -3705,6 +3705,10 @@ int main(int argc, char *argv[])
+ 		goto out;
+ 	}
+ 
++	/* This being set means whoever called us tries to do a reproducible build */
++	if (getenv("SOURCE_DATE_EPOCH"))
++		conf_load.reproducible_build = true;
++
+ 	if (languages.str && parse_languages())
+ 		return rc;
+