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authorNicolas Pitre <nicolas.pitre@linaro.org>2017-08-11 06:53:39 +0200
committerNicolas Pitre <nicolas.pitre@linaro.org>2017-09-11 01:31:46 +0200
commit382e67aec6a7eea8ed4403e86950b468a191c468 (patch)
tree74be0a8304e29a5663419343a3cf62ac5b91ade7 /fs/binfmt_elf_fdpic.c
parentARM: add ELF_FDPIC support (diff)
downloadlinux-382e67aec6a7eea8ed4403e86950b468a191c468.tar.xz
linux-382e67aec6a7eea8ed4403e86950b468a191c468.zip
ARM: enable elf_fdpic on systems with an MMU
Provide the necessary changes to be able to execute ELF-FDPIC binaries on ARM systems with an MMU. The default for CONFIG_BINFMT_ELF_FDPIC is also set to n if the regular ELF loader is already configured so not to force FDPIC support on everyone. Given that CONFIG_BINFMT_ELF depends on CONFIG_MMU, this means CONFIG_BINFMT_ELF_FDPIC will still default to y when !MMU. Signed-off-by: Nicolas Pitre <nico@linaro.org> Acked-by: Mickael GUENE <mickael.guene@st.com> Tested-by: Vincent Abriou <vincent.abriou@st.com> Tested-by: Andras Szemzo <szemzo.andras@gmail.com>
Diffstat (limited to 'fs/binfmt_elf_fdpic.c')
-rw-r--r--fs/binfmt_elf_fdpic.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index cf93a4fad012..692e2a1fd2bb 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -377,6 +377,11 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm)
executable_stack);
if (retval < 0)
goto error;
+#ifdef ARCH_HAS_SETUP_ADDITIONAL_PAGES
+ retval = arch_setup_additional_pages(bprm, !!interpreter_name);
+ if (retval < 0)
+ goto error;
+#endif
#endif
/* load the executable and interpreter into memory */