Find all needed information about Compat Vdso Support. Below you can see links where you can find everything you want to know about Compat Vdso Support.
https://github.com/aosp-mirror/kernel_msm/commit/e46ec5f0eb314aeba5e731d6827c9714227266d0
The compat vDSO Makefile relies on CROSS_COMPILE_ARM32 to provide a 32-bit compiler, appropriate logic will be added to the arm64 Makefile later on to ensure that an attempt to build the compat vDSO is made only if this variable has been set properly.
https://pastebin.com/tq1qhq7v
932bb934ed4d mips: compat: vdso: Use legacy syscalls as fallback. cdab7e2c73d5 mips: vdso: Fix flip/flop vdso building bug ... 24640f233b46 mips: Add support for generic vDSO. 8919975b6171 MIPS: VDSO: Fix build for binutils < 2.25. 90800281e761 MIPS: VDSO…
https://unix.stackexchange.com/questions/9885/where-is-config-compat-vdso-in-make-menuconfig
But I'm stumped when I reached the option CONFIG_COMPAT_VDSO. Where is it exactly in make menuconfig? The site indicated that the options is in the Processor type …
next prev parent reply index Thread overview: 110+ messages / expand[flatnested] mbox.gz Atom feed top 2019-06-21 9:52 [PATCH v7 00/25] Unify vDSOs across more architectures Vincenzo Frascino 2019-06-21 9:52 ` [PATCH v7 01/25] kernel: Standardize vdso_datapage Vincenzo Frascino 2019-06-24 13:56 ` Catalin Marinas 2019-06-21 9:52 ` [PATCH v7 02 ...
https://linuxplumbersconf.org/2016/ocw/system/presentations/3711/original/LPC_vDSO.pdf
Compat vDSO only built if CROSS_COMPILE_ARM32is set Pass a clever mixture of flags to the 32-bit compiler Kernel support is pointless without support in libc + dynamic linker Support added to glibc in 2.22 (August 2015) Support added to bionic in July 2016 — but it didn’t make it into Android N ☹ 14/21 Non-Confidential © ARM 2016
https://github.com/ValveSoftware/steamos_kernel/pull/9/commits/e97d991740cd365bb80b906f738ef57ac16bd1f1
Nov 20, 2014 · The compat vDSO is a complicated hack that's needed to maintain compatibility with a small range of glibc versions. This removes it and replaces it with a much simpler hack: a config option to disable the 32-bit vDSO by default.
https://patchwork.kernel.org/patch/10968853/
https://github.com/ClangBuiltLinux/linux/issues/595
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Jul 29, 2019 · [PATCH] arm64: vdso: Fix Makefile regression Vincenzo Frascino Mon, 29 Jul 2019 05:54:49 -0700 Using an old .config in combination with "make oldconfig" can cause an incorrect detection of the compat compiler:
https://unix.stackexchange.com/questions/9885/where-is-config-compat-vdso-in-make-menuconfig/9904
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