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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2019-08-07 14:31:59 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2019-08-09 11:03:28 +0200 |
| commit | 404861e15b5fa7edbab22400f9174c1a21fde731 (patch) | |
| tree | bb5aedd91edcb90d3d1099bf3b5f1c647d35cdfd /arch/s390/kernel/vdso.c | |
| parent | s390/build: use size command to perform empty .bss check (diff) | |
| download | linux-404861e15b5fa7edbab22400f9174c1a21fde731.tar.xz linux-404861e15b5fa7edbab22400f9174c1a21fde731.zip | |
s390/vdso: map vdso also for statically linked binaries
s390 does not map the vdso for statically linked binaries, assuming
that this doesn't make sense. See commit fc5243d98ac2 ("[S390]
arch_setup_additional_pages arguments").
However with glibc commit d665367f596d ("linux: Enable vDSO for static
linking as default (BZ#19767)") and commit 5e855c895401 ("s390: Enable
VDSO for static linking") the vdso is also used for statically linked
binaries - if the kernel would make it available.
Therefore map the vdso always, just like all other architectures.
Reported-by: Stefan Liebler <stli@linux.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel/vdso.c')
| -rw-r--r-- | arch/s390/kernel/vdso.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c index 243d8b1185bf..c6bc190f3c28 100644 --- a/arch/s390/kernel/vdso.c +++ b/arch/s390/kernel/vdso.c @@ -216,11 +216,6 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) if (!vdso_enabled) return 0; - /* - * Only map the vdso for dynamically linked elf binaries. - */ - if (!uses_interp) - return 0; vdso_pages = vdso64_pages; #ifdef CONFIG_COMPAT_VDSO |