diff options
| author | H. J. Lu <hjl.tools@gmail.com> | 2012-02-19 11:38:06 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2012-02-20 12:52:06 -0800 |
| commit | 1a21d4e095ef720abf81299000afc038206d571b (patch) | |
| tree | 8d64feea71f41f785521f66fecbd29c16b0cf63a /arch/x86/vdso/vdso32-setup.c | |
| parent | 5fd92e65a68b813667bc8739f5fa463e5bfcd66d (diff) | |
| download | linux-1a21d4e095ef720abf81299000afc038206d571b.tar.gz linux-1a21d4e095ef720abf81299000afc038206d571b.tar.bz2 linux-1a21d4e095ef720abf81299000afc038206d571b.zip | |
x32: Add x32 VDSO support
Add support for the x32 VDSO. The x32 VDSO takes advantage of the
similarity between the x86-64 and the x32 ABIs to contain the same
content, only the container is different, as the x32 VDSO obviously is
an x32 shared object.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/vdso/vdso32-setup.c')
| -rw-r--r-- | arch/x86/vdso/vdso32-setup.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c index 468d591dde31..01b8a0df5e0e 100644 --- a/arch/x86/vdso/vdso32-setup.c +++ b/arch/x86/vdso/vdso32-setup.c @@ -317,6 +317,12 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) int ret = 0; bool compat; +#ifdef CONFIG_X86_X32_ABI + extern int x32_setup_additional_pages(struct linux_binprm *, int); + if (test_thread_flag(TIF_X32)) + return x32_setup_additional_pages (bprm, uses_interp); +#endif + if (vdso_enabled == VDSO_DISABLED) return 0; |