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| author | Johannes Berg <johannes.berg@intel.com> | 2021-03-08 14:02:37 +0100 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2021-06-17 21:54:15 +0200 |
| commit | 386093c68ba3e8bcfe7f46deba901e0e80713c29 (patch) | |
| tree | 30d50917cbe514bff2ebf8d9180e6c4193a02b7b | |
| parent | 43c590cb86665be702c0af0231a10ec813df9cfd (diff) | |
| download | linux-386093c68ba3e8bcfe7f46deba901e0e80713c29.tar.gz | |
um: allow not setting extra rpaths in the linux binary
There doesn't seem to be any reason for the rpath being set in the binaries, at on systems that I tested on. On the other hand, setting rpath is actually harming binaries in some cases, e.g. if using nix-based compilation environments where /lib & /lib64 are not part of the actual environment. Add a new Kconfig option (under EXPERT, for less user confusion) that allows disabling the rpath additions. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Richard Weinberger <richard@nod.at>
| -rw-r--r-- | arch/um/Kconfig | 13 | ||||
| -rw-r--r-- | arch/um/Makefile | 3 | ||||
| -rw-r--r-- | arch/x86/Makefile.um | 2 |
3 files changed, 16 insertions, 2 deletions
diff --git a/arch/um/Kconfig b/arch/um/Kconfig index 328ba973c07d..fe6d898aeb85 100644 --- a/arch/um/Kconfig +++ b/arch/um/Kconfig @@ -106,6 +106,19 @@ config LD_SCRIPT_DYN depends on !LD_SCRIPT_STATIC select MODULE_REL_CRCS if MODVERSIONS +config LD_SCRIPT_DYN_RPATH + bool "set rpath in the binary" if EXPERT + default y + depends on LD_SCRIPT_DYN + help + Add /lib (and /lib64 for 64-bit) to the linux binary's rpath + explicitly. + + You may need to turn this off if compiling for nix systems + that have their libraries in random /nix directories and + might otherwise unexpected use libraries from /lib or /lib64 + instead of the desired ones. + config HOSTFS tristate "Host filesystem" help diff --git a/arch/um/Makefile b/arch/um/Makefile index 1cea46ff9bb7..12a7acef0357 100644 --- a/arch/um/Makefile +++ b/arch/um/Makefile @@ -118,7 +118,8 @@ archprepare: $(Q)$(MAKE) $(build)=$(HOST_DIR)/um include/generated/user_constants.h LINK-$(CONFIG_LD_SCRIPT_STATIC) += -static -LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib $(call cc-option, -no-pie) +LINK-$(CONFIG_LD_SCRIPT_DYN) += $(call cc-option, -no-pie) +LINK-$(CONFIG_LD_SCRIPT_DYN_RPATH) += -Wl,-rpath,/lib CFLAGS_NO_HARDENING := $(call cc-option, -fno-PIC,) $(call cc-option, -fno-pic,) \ -fno-stack-protector $(call cc-option, -fno-stack-protector-all) diff --git a/arch/x86/Makefile.um b/arch/x86/Makefile.um index 1db7913795f5..b3c1ae084180 100644 --- a/arch/x86/Makefile.um +++ b/arch/x86/Makefile.um @@ -44,7 +44,7 @@ ELF_FORMAT := elf64-x86-64 # Not on all 64-bit distros /lib is a symlink to /lib64. PLD is an example. -LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib64 +LINK-$(CONFIG_LD_SCRIPT_DYN_RPATH) += -Wl,-rpath,/lib64 LINK-y += -m64 endif |