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| author |   Sven Schnelle <svens@linux.ibm.com> | 2022-04-06 08:35:26 +0200 |
|---|---|---|
| committer |   Heiko Carstens <hca@linux.ibm.com> | 2022-04-25 13:54:14 +0200 |
| commit | 57761da4dc5cd60bed2c81ba0edb7495c3c740b8 (patch) | |
| tree | abbdfb74d74e91abed372c2ad22f3ca29d7061d2 /arch/s390/include/asm/processor.h | |
| parent | s390/mmap: increase stack/mmap gap to 128MB (diff) | |
| download | linux-dev-57761da4dc5cd60bed2c81ba0edb7495c3c740b8.tar.xz linux-dev-57761da4dc5cd60bed2c81ba0edb7495c3c740b8.zip | |
s390/vdso: move vdso mapping to its own function
This is a preparation patch for adding vdso randomization to s390.
It adds a function vdso_size(), which will be used later in calculating
the STACK_TOP value. It also moves the vdso mapping into a new function
vdso_map(), to keep the code similar to other architectures.
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/processor.h')
| -rw-r--r-- | arch/s390/include/asm/processor.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index ff1e25d515a8..a3ab8cbcc5e4 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -83,6 +83,7 @@ void cpu_detect_mhz_feature(void); extern const struct seq_operations cpuinfo_op; extern void execve_tail(void); extern void __bpon(void); +unsigned long vdso_size(void); /* * User space process size: 2GB for 31 bit, 4TB or 8PT for 64 bit. |