From: Joseph Myers Date: Tue, 6 Feb 2018 00:36:14 +0000 (+0000) Subject: Add MAP_SYNC from Linux 4.15. X-Git-Tag: glibc-2.28~644 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=e76def72eb74ddc4fcf2b1630f5da742ddbd811d;p=thirdparty%2Fglibc.git 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. --- diff --git a/ChangeLog b/ChangeLog index 115d3cbe034..0022ea0450b 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,26 @@ 2018-02-06 Joseph Myers + * 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. + * sysdeps/unix/sysv/linux/bits/mman-linux.h [__USE_MISC] (MAP_SHARED_VALIDATE): New macro. * sysdeps/unix/sysv/linux/hppa/bits/mman.h [__USE_MISC] diff --git a/sysdeps/unix/sysv/linux/aarch64/bits/mman.h b/sysdeps/unix/sysv/linux/aarch64/bits/mman.h index 83ff48cddaf..9ad8a601f9a 100644 --- a/sysdeps/unix/sysv/linux/aarch64/bits/mman.h +++ b/sysdeps/unix/sysv/linux/aarch64/bits/mman.h @@ -36,6 +36,8 @@ # 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 diff --git a/sysdeps/unix/sysv/linux/arm/bits/mman.h b/sysdeps/unix/sysv/linux/arm/bits/mman.h index 9e059e6d06b..be71c82e16f 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. */ diff --git a/sysdeps/unix/sysv/linux/ia64/bits/mman.h b/sysdeps/unix/sysv/linux/ia64/bits/mman.h index cb64de4dd78..0f00a1a3427 100644 --- a/sysdeps/unix/sysv/linux/ia64/bits/mman.h +++ b/sysdeps/unix/sysv/linux/ia64/bits/mman.h @@ -35,6 +35,8 @@ # 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. */ diff --git a/sysdeps/unix/sysv/linux/m68k/bits/mman.h b/sysdeps/unix/sysv/linux/m68k/bits/mman.h index db26a449113..80cc2a677dc 100644 --- a/sysdeps/unix/sysv/linux/m68k/bits/mman.h +++ b/sysdeps/unix/sysv/linux/m68k/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. */ diff --git a/sysdeps/unix/sysv/linux/microblaze/bits/mman.h b/sysdeps/unix/sysv/linux/microblaze/bits/mman.h index b820da1b92a..8ca77b6b8fb 100644 --- a/sysdeps/unix/sysv/linux/microblaze/bits/mman.h +++ b/sysdeps/unix/sysv/linux/microblaze/bits/mman.h @@ -36,6 +36,8 @@ # 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. */ diff --git a/sysdeps/unix/sysv/linux/nios2/bits/mman.h b/sysdeps/unix/sysv/linux/nios2/bits/mman.h index b7c27b8713b..987e47951c3 100644 --- a/sysdeps/unix/sysv/linux/nios2/bits/mman.h +++ b/sysdeps/unix/sysv/linux/nios2/bits/mman.h @@ -36,6 +36,8 @@ # 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. */ diff --git a/sysdeps/unix/sysv/linux/riscv/bits/mman.h b/sysdeps/unix/sysv/linux/riscv/bits/mman.h index 0e64f1eea73..84257723b40 100644 --- a/sysdeps/unix/sysv/linux/riscv/bits/mman.h +++ b/sysdeps/unix/sysv/linux/riscv/bits/mman.h @@ -30,6 +30,8 @@ # 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. */ diff --git a/sysdeps/unix/sysv/linux/s390/bits/mman.h b/sysdeps/unix/sysv/linux/s390/bits/mman.h index 4b926e8cd77..cdd7a635309 100644 --- a/sysdeps/unix/sysv/linux/s390/bits/mman.h +++ b/sysdeps/unix/sysv/linux/s390/bits/mman.h @@ -35,6 +35,8 @@ # 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. */ diff --git a/sysdeps/unix/sysv/linux/sh/bits/mman.h b/sysdeps/unix/sysv/linux/sh/bits/mman.h index c5844dcc804..e22be106823 100644 --- a/sysdeps/unix/sysv/linux/sh/bits/mman.h +++ b/sysdeps/unix/sysv/linux/sh/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. */ diff --git a/sysdeps/unix/sysv/linux/x86/bits/mman.h b/sysdeps/unix/sysv/linux/x86/bits/mman.h index fb4737a3a76..ebfc0c7bd1a 100644 --- a/sysdeps/unix/sysv/linux/x86/bits/mman.h +++ b/sysdeps/unix/sysv/linux/x86/bits/mman.h @@ -39,6 +39,8 @@ # 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. */