diff --git a/pkgs/os-specific/linux/minimal-bootstrap/binutils/default.nix b/pkgs/os-specific/linux/minimal-bootstrap/binutils/default.nix
index 3b2a772797bf..dd69efc0c641 100644
--- a/pkgs/os-specific/linux/minimal-bootstrap/binutils/default.nix
+++ b/pkgs/os-specific/linux/minimal-bootstrap/binutils/default.nix
@@ -20,21 +20,18 @@ let
   # Based on https://github.com/ZilchOS/bootstrap-from-tcc/blob/2e0c68c36b3437386f786d619bc9a16177f2e149/using-nix/2a1-static-binutils.nix
   inherit (import ./common.nix { inherit lib; }) meta;
   pname = "binutils";
-
-  # Unfortunately, this is the latest version (as of 2.45.1) that works for
-  # - tinycc that compiles gcc 4.6.4 (ar in 2.45.* produce incompatible archives for tcc linker)
-  # - gcc 4.6.4 that compiles musl 1.2.5 (ld crashes in 2.43 and 2.44)
-  # This might need some further investigation.
-  version = "2.42";
+  version = "2.46.0";
 
   src = fetchurl {
     url = "mirror://gnu/binutils/binutils-${version}.tar.xz";
-    hash = "sha256-9uTUH9X8d4sGt4kUV7NiDaXs6hAGxqSkGumYEJ+FqAA=";
+    hash = "sha256-11qU9Nc+ekCG91E+Z+Q56Pzcu3Jv/mP0ZhdE5iVrLPI=";
   };
 
   patches = [
     # Make binutils output deterministic by default.
     ./deterministic.patch
+    # Fix __attribute__, to fix mmap-related assertion failures.
+    ./fix-tinycc-attribute.patch
   ];
 
   configureFlags = [
@@ -105,11 +102,6 @@ bash.runCommand "${pname}-${version}"
     export AR="tcc -ar"
     export lt_cv_sys_max_cmd_len=32768
 
-    # binutils 2.42 has a broken check for TLS storage class, which results
-    # in the TLS macro begin undefined.
-    # Let's help it along. We won't need TLS anyway.
-    export ac_cv_tls=" "
-
     export CFLAGS="-D__LITTLE_ENDIAN__=1"
     bash ./configure ${lib.concatStringsSep " " configureFlags}
 
diff --git a/pkgs/os-specific/linux/minimal-bootstrap/binutils/fix-tinycc-attribute.patch b/pkgs/os-specific/linux/minimal-bootstrap/binutils/fix-tinycc-attribute.patch
new file mode 100644
index 000000000000..ec5371c71e8d
--- /dev/null
+++ b/pkgs/os-specific/linux/minimal-bootstrap/binutils/fix-tinycc-attribute.patch
@@ -0,0 +1,13 @@
+diff --git a/include/ansidecl.h b/include/ansidecl.h
+index 0ae6a986..214a41f9 100644
+--- a/include/ansidecl.h
++++ b/include/ansidecl.h
+@@ -68,7 +68,7 @@ So instead we use the macro below and test it against specific values.  */
+    macros freely, and know that they will come into play for the
+    version of gcc in which they are supported.  */
+ 
+-#if (GCC_VERSION < 2007)
++#if (GCC_VERSION < 2007) && !defined(__TINYC__)
+ # define __attribute__(x)
+ #endif
+