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| author | Joseph Myers <joseph@codesourcery.com> | 2018-02-06 00:36:14 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2018-02-06 00:36:14 +0000 |
| commit | e76def72eb74ddc4fcf2b1630f5da742ddbd811d (patch) | |
| tree | ac9ad86990781947978f36451edc6b653a05bf75 /sysdeps/unix/sysv/linux/arm/bits | |
| parent | 92669d6ee3f25b3ca4cb227d194900489f895432 (diff) | |
| download | glibc-e76def72eb74ddc4fcf2b1630f5da742ddbd811d.tar.gz glibc-e76def72eb74ddc4fcf2b1630f5da742ddbd811d.tar.xz glibc-e76def72eb74ddc4fcf2b1630f5da742ddbd811d.zip | |
Add MAP_SYNC from Linux 4.15.
This patch adds the MAP_SYNC macro from Linux 4.15 to various bits/mman.h headers. Note that this is *not* added to all architectures: in Linux 4.15, this macro is only in asm-generic/mman.h, and only some architectures' asm/mman.h include the asm-generic file - the architectures not using the asm-generic file will need their own values of MAP_SYNC allocated to support this functionality (some of them also already have conflicting mmap flags so the value there will have to be different from the generic 0x80000). Specifically, for glibc architectures, alpha hppa mips powerpc sparc tile lack allocations of values for MAP_SYNC. Tested for x86_64. * sysdeps/unix/sysv/linux/aarch64/bits/mman.h [__USE_MISC] (MAP_SYNC): New macro. * sysdeps/unix/sysv/linux/arm/bits/mman.h [__USE_MISC] (MAP_SYNC): Likewise. * sysdeps/unix/sysv/linux/ia64/bits/mman.h [__USE_MISC] (MAP_SYNC): Likewise. * sysdeps/unix/sysv/linux/m68k/bits/mman.h [__USE_MISC] (MAP_SYNC): Likewise. * sysdeps/unix/sysv/linux/microblaze/bits/mman.h [__USE_MISC] (MAP_SYNC): Likewise. * sysdeps/unix/sysv/linux/nios2/bits/mman.h [__USE_MISC] (MAP_SYNC): Likewise. * sysdeps/unix/sysv/linux/riscv/bits/mman.h [__USE_MISC] (MAP_SYNC): Likewise. * sysdeps/unix/sysv/linux/s390/bits/mman.h [__USE_MISC] (MAP_SYNC): Likewise. * sysdeps/unix/sysv/linux/sh/bits/mman.h [__USE_MISC] (MAP_SYNC): Likewise. * sysdeps/unix/sysv/linux/x86/bits/mman.h [__USE_MISC] (MAP_SYNC): Likewise.
Diffstat (limited to 'sysdeps/unix/sysv/linux/arm/bits')
| -rw-r--r-- | sysdeps/unix/sysv/linux/arm/bits/mman.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/arm/bits/mman.h b/sysdeps/unix/sysv/linux/arm/bits/mman.h index 9e059e6d06..be71c82e16 100644 --- a/sysdeps/unix/sysv/linux/arm/bits/mman.h +++ b/sysdeps/unix/sysv/linux/arm/bits/mman.h @@ -34,6 +34,8 @@ # define MAP_NONBLOCK 0x10000 /* Do not block on IO. */ # define MAP_STACK 0x20000 /* Allocation is for a stack. */ # define MAP_HUGETLB 0x40000 /* Create huge page mapping. */ +# define MAP_SYNC 0x80000 /* Perform synchronous page + faults for the mapping. */ #endif /* Include generic Linux declarations. */ |