diff options
Diffstat (limited to '')
-rw-r--r-- | arch/sparc/vdso/vdso32/.gitignore | 2 | ||||
-rw-r--r-- | arch/sparc/vdso/vdso32/vclock_gettime.c | 22 | ||||
-rw-r--r-- | arch/sparc/vdso/vdso32/vdso-note.S | 12 | ||||
-rw-r--r-- | arch/sparc/vdso/vdso32/vdso32.lds.S | 26 |
4 files changed, 62 insertions, 0 deletions
diff --git a/arch/sparc/vdso/vdso32/.gitignore b/arch/sparc/vdso/vdso32/.gitignore new file mode 100644 index 0000000000..5167384843 --- /dev/null +++ b/arch/sparc/vdso/vdso32/.gitignore @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0-only +vdso32.lds diff --git a/arch/sparc/vdso/vdso32/vclock_gettime.c b/arch/sparc/vdso/vdso32/vclock_gettime.c new file mode 100644 index 0000000000..d7f99e6745 --- /dev/null +++ b/arch/sparc/vdso/vdso32/vclock_gettime.c @@ -0,0 +1,22 @@ +/* + * Copyright (c) 2017 Oracle and/or its affiliates. All rights reserved. + */ + +#define BUILD_VDSO32 + +#ifdef CONFIG_SPARC64 + +/* + * in case of a 32 bit VDSO for a 64 bit kernel fake a 32 bit kernel + * configuration + */ +#undef CONFIG_64BIT +#undef CONFIG_SPARC64 +#define BUILD_VDSO32_64 +#define CONFIG_32BIT +#undef CONFIG_QUEUED_RWLOCKS +#undef CONFIG_QUEUED_SPINLOCKS + +#endif + +#include "../vclock_gettime.c" diff --git a/arch/sparc/vdso/vdso32/vdso-note.S b/arch/sparc/vdso/vdso32/vdso-note.S new file mode 100644 index 0000000000..e234983cf0 --- /dev/null +++ b/arch/sparc/vdso/vdso32/vdso-note.S @@ -0,0 +1,12 @@ +/* + * This supplies .note.* sections to go into the PT_NOTE inside the vDSO + * text. Here we can supply some information useful to userland. + */ + +#include <linux/uts.h> +#include <linux/version.h> +#include <linux/elfnote.h> + +ELFNOTE_START(Linux, 0, "a") + .long LINUX_VERSION_CODE +ELFNOTE_END diff --git a/arch/sparc/vdso/vdso32/vdso32.lds.S b/arch/sparc/vdso/vdso32/vdso32.lds.S new file mode 100644 index 0000000000..218930fdff --- /dev/null +++ b/arch/sparc/vdso/vdso32/vdso32.lds.S @@ -0,0 +1,26 @@ +/* + * Linker script for sparc32 vDSO + * We #include the file to define the layout details. + * + * This file defines the version script giving the user-exported symbols in + * the DSO. + */ + +#define BUILD_VDSO32 +#include "../vdso-layout.lds.S" + +/* + * This controls what userland symbols we export from the vDSO. + */ +VERSION { + LINUX_2.6 { + global: + clock_gettime; + __vdso_clock_gettime; + __vdso_clock_gettime_stick; + gettimeofday; + __vdso_gettimeofday; + __vdso_gettimeofday_stick; + local: *; + }; +} |