2 files changed, 97 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/libraries/libunwind/backtrace-only-with-glibc.patch b/nixpkgs/pkgs/development/libraries/libunwind/backtrace-only-with-glibc.patch
new file mode 100644
index 000000000000..5fcaa72c0c01
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/libunwind/backtrace-only-with-glibc.patch
@@ -0,0 +1,45 @@
+From 04437142399662b576bd55a85485c6dcc14d0812 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem at gmail.com>
+Date: Thu, 31 Dec 2015 06:44:07 +0000
+Subject: [PATCH] backtrace: Use only with glibc and uclibc
+
+backtrace API is glibc specific not linux specific
+so make it behave so.
+
+Signed-off-by: Khem Raj <raj.khem at gmail.com>
+---
+Upstream-Status: Pending
+
+ tests/test-coredump-unwind.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/tests/test-coredump-unwind.c b/tests/test-coredump-unwind.c
+index 5254708..8767b42 100644
+--- a/tests/test-coredump-unwind.c
++++ b/tests/test-coredump-unwind.c
+@@ -57,7 +57,9 @@
+ #include <grp.h>
+ 
+ /* For SIGSEGV handler code */
++#ifdef __GLIBC__
+ #include <execinfo.h>
++#endif
+ #include <sys/ucontext.h>
+ 
+ #include <libunwind-coredump.h>
+@@ -238,11 +240,11 @@ void handle_sigsegv(int sig, siginfo_t *info, void *ucontext)
+ 			ip);
+ 
+   {
++#ifdef __GLIBC__
+     /* glibc extension */
+     void *array[50];
+     int size;
+     size = backtrace(array, 50);
+-#ifdef __linux__
+     backtrace_symbols_fd(array, size, 2);
+ #endif
+   }
+-- 
+2.6.4
+
diff --git a/nixpkgs/pkgs/development/libraries/libunwind/default.nix b/nixpkgs/pkgs/development/libraries/libunwind/default.nix
new file mode 100644
index 000000000000..643752da1dc5
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/libunwind/default.nix
@@ -0,0 +1,52 @@
+{ stdenv, lib, fetchurl, fetchpatch, autoreconfHook, xz, coreutils }:
+
+stdenv.mkDerivation rec {
+  pname = "libunwind";
+  version = "1.4.0";
+
+  src = fetchurl {
+    url = "mirror://savannah/libunwind/${pname}-${version}.tar.gz";
+    sha256 = "0dc46flppifrv2z0mrdqi60165ghxm1wk0g47vcbyzjdplqwjnfz";
+  };
+
+  patches = [
+    ./backtrace-only-with-glibc.patch
+
+    (fetchpatch {
+      # upstream build fix against -fno-common compilers like >=gcc-10
+      url = "https://github.com/libunwind/libunwind/commit/29e17d8d2ccbca07c423e3089a6d5ae8a1c9cb6e.patch";
+      sha256 = "1angwfq6h0jskg6zx8g6w9min38g5mgmrcbppcy5hqn59cgsxbw0";
+    })
+  ];
+
+  postPatch = lib.optionalString stdenv.hostPlatform.isMusl ''
+    substituteInPlace configure.ac --replace "-lgcc_s" "-lgcc_eh"
+  '';
+
+  nativeBuildInputs = [ autoreconfHook ];
+
+  outputs = [ "out" "dev" "devman" ];
+
+  # Without latex2man, no man pages are installed despite being
+  # prebuilt in the source tarball.
+  configureFlags = [ "LATEX2MAN=${coreutils}/bin/true" ];
+
+  propagatedBuildInputs = [ xz ];
+
+  postInstall = ''
+    find $out -name \*.la | while read file; do
+      sed -i 's,-llzma,${xz.out}/lib/liblzma.la,' $file
+    done
+  '';
+
+  doCheck = false; # fails
+
+  meta = with lib; {
+    homepage = "https://www.nongnu.org/libunwind";
+    description = "A portable and efficient API to determine the call-chain of a program";
+    maintainers = with maintainers; [ orivej ];
+    platforms = platforms.linux;
+    badPlatforms = [ "riscv32-linux" "riscv64-linux" ];
+    license = licenses.mit;
+  };
+}