diff --git a/sdk_container/src/third_party/portage-stable/dev-lang/nasm/Manifest b/sdk_container/src/third_party/portage-stable/dev-lang/nasm/Manifest
index 0f491497c9..0c3cc661ad 100644
--- a/sdk_container/src/third_party/portage-stable/dev-lang/nasm/Manifest
+++ b/sdk_container/src/third_party/portage-stable/dev-lang/nasm/Manifest
@@ -1 +1,2 @@
 DIST nasm-2.16.03.tar.xz 1032388 BLAKE2B 742cbf330341fde9f778d8ca13e8c06199f48796d47028ac973d39e3d9e434450cdfebe89f6ab248d372bdaeb0c88a25eb7153a39b66fc05e770523d4c9e11e9 SHA512 0c706e41a9c33e1ac3bad5056e8bf8cbcd51785b551a6e34ce7d0d723df8eaab8603a033e89b3dcda1004b558f9e9ef3196691500f10d8201bf47a323a516f84
+DIST nasm-3.01.tar.xz 1499136 BLAKE2B 182d908e949e8212ec29bfaa4b747312f7b57dd686195c9b44701f0055ced4b40555624e27d1e1183b356095da76ba1ac8b2a5aa84b2e0d2277106de8ca915d1 SHA512 ca9550ad3239cfaa9546a908e8de86e11a7c7dd9d6006f42d272d0b025b601cdb205e60b8b3929f31123ef450dd0f0403e1300328cadf0ffdfd459f443944482
diff --git a/sdk_container/src/third_party/portage-stable/dev-lang/nasm/nasm-3.01.ebuild b/sdk_container/src/third_party/portage-stable/dev-lang/nasm/nasm-3.01.ebuild
new file mode 100644
index 0000000000..e15966772d
--- /dev/null
+++ b/sdk_container/src/third_party/portage-stable/dev-lang/nasm/nasm-3.01.ebuild
@@ -0,0 +1,91 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit autotools
+
+DESCRIPTION="groovy little assembler"
+HOMEPAGE="https://www.nasm.us/"
+SRC_URI="https://www.nasm.us/pub/nasm/releasebuilds/${PV/_}/${P/_}.tar.xz"
+S=${WORKDIR}/${P/_}
+
+LICENSE="BSD-2"
+SLOT="0"
+KEYWORDS="~amd64 ~arm64 ~loong ~ppc64 ~riscv ~x86 ~amd64-linux ~x86-linux"
+IUSE="doc"
+
+QA_CONFIG_IMPL_DECL_SKIP=(
+	# Windows.
+	_BitScanReverse
+	_BitScanReverse64
+
+	# Linux headers that are not included.
+	__cpu_to_le16
+	__cpu_to_le32
+	__cpu_to_le64
+	_byteswap_uint64
+	_byteswap_ulong
+	_byteswap_ushort
+	cpu_to_le16
+	cpu_to_le32
+	cpu_to_le64
+
+	# __typeof as gnu extensions are not enabled
+	typeof
+
+	# musl doesn't define __bswap_N in endian.h (it's named _bswapN
+	# instead). could be fixed to call this instead, or to include
+	# musl's byteswap.h instead, but it is much easier to fall back on
+	# __builtin_bswapN. Bug #928848
+	__bswap_16
+	__bswap_32
+	__bswap_64
+)
+
+# [fonts note] doc/psfonts.ph defines ordered list of font preference.
+# Currently 'media-fonts/source-pro' is most preferred and is able to
+# satisfy all 6 font flavours: tilt, chapter, head, etc.
+BDEPEND="
+	dev-lang/perl
+	doc? (
+		app-text/ghostscript-gpl
+		dev-perl/Font-TTF
+		dev-perl/Sort-Versions
+		media-fonts/source-code-pro
+		media-fonts/source-sans:3
+		virtual/perl-File-Spec
+	)
+"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-2.15-bsd-cp-doc.patch
+)
+
+src_prepare() {
+	default
+
+	# https://bugs.gentoo.org/870214
+	# During the split of media-fonts/source-pro, the source-sans files
+	# were renamed. Currently depend on media-fonts/source-sans:3 which works
+	# with this sed.
+	sed -i 's/SourceSansPro/SourceSans3/g' doc/psfonts.ph || die
+
+	AT_M4DIR="${S}/autoconf/m4" eautoreconf
+}
+
+src_configure() {
+	# --enable-lto just appends -flto to *FLAGS
+	# so let users just use lto through normal make.conf *FLAGS
+	econf
+}
+
+src_compile() {
+	default
+	use doc && emake doc
+}
+
+src_install() {
+	default
+	emake DESTDIR="${D}" install $(usex doc install_doc '')
+}