[rulkc] [PATCH 1/1] package/mtd: build with -fPIC when shared libraries are enabled
Konstantin Menyaev
viper at landau.one
Sun Aug 9 11:26:22 MSK 2026
On 8/2/26 01:29, viper at landau.one wrote:
> From: Konstantin Menyaev <viper at landau.one>
>
> Historically, mtd-utils only provided static libraries, so they are
> built without -fPIC.
>
> This becomes an issue for configs with shared libraries,
> where apps may need to link libmtd.a or libubi.a
> into shared objects, resulting in relocation errors.
>
> Build the MTD package with -fPIC when shared libraries are enabled,
> while keeping static-only builds unchanged.
>
> Signed-off-by: Konstantin Menyaev <viper at landau.one>
> ---
> package/mtd/mtd.mk | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/package/mtd/mtd.mk b/package/mtd/mtd.mk
> index 2a625fccce..d67770d5ba 100644
> --- a/package/mtd/mtd.mk
> +++ b/package/mtd/mtd.mk
> @@ -14,8 +14,13 @@ MTD_CPE_ID_PRODUCT = mtd-utils
> MTD_INSTALL_STAGING = YES
> MTD_DEPENDENCIES = host-pkgconf
>
> +MTD_CFLAGS = $(TARGET_CFLAGS)
> MTD_LDFLAGS = $(TARGET_LDFLAGS)
>
> +ifeq ($(BR2_SHARED_LIBS)$(BR2_STATIC_SHARED_LIBS),y)
> +MTD_CFLAGS += -fPIC
> +endif
> +
> ifeq ($(BR2_PACKAGE_LIBEXECINFO),y)
> MTD_DEPENDENCIES += libexecinfo
> MTD_LDFLAGS += -lexecinfo
> @@ -35,7 +40,7 @@ else
> MTD_CONF_OPTS += --without-zlib
> endif
>
> -MTD_CONF_ENV += LDFLAGS="$(MTD_LDFLAGS)"
> +MTD_CONF_ENV += CFLAGS="$(MTD_CFLAGS)" LDFLAGS="$(MTD_LDFLAGS)"
>
> ifeq ($(BR2_PACKAGE_MTD_JFFS_UTILS),y)
> MTD_CONF_OPTS += --with-jffs
kindly ping
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