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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/sparc/vdso/vdso32 | |
parent | Initial commit. (diff) | |
download | linux-c109f8d9e922037b3fa45f46d78384d49db8ad76.tar.xz linux-c109f8d9e922037b3fa45f46d78384d49db8ad76.zip |
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/sparc/vdso/vdso32')
-rw-r--r-- | arch/sparc/vdso/vdso32/.gitignore | 1 | ||||
-rw-r--r-- | arch/sparc/vdso/vdso32/vclock_gettime.c | 26 | ||||
-rw-r--r-- | arch/sparc/vdso/vdso32/vdso-note.S | 12 | ||||
-rw-r--r-- | arch/sparc/vdso/vdso32/vdso32.lds.S | 24 |
4 files changed, 63 insertions, 0 deletions
diff --git a/arch/sparc/vdso/vdso32/.gitignore b/arch/sparc/vdso/vdso32/.gitignore new file mode 100644 index 000000000..e45fba9d0 --- /dev/null +++ b/arch/sparc/vdso/vdso32/.gitignore @@ -0,0 +1 @@ +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 000000000..026abb3b8 --- /dev/null +++ b/arch/sparc/vdso/vdso32/vclock_gettime.c @@ -0,0 +1,26 @@ +/* + * Copyright (c) 2017 Oracle and/or its affiliates. All rights reserved. + */ + +#define BUILD_VDSO32 + +#ifndef CONFIG_CC_OPTIMIZE_FOR_SIZE +#undef CONFIG_OPTIMIZE_INLINING +#endif + +#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 000000000..e234983cf --- /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 000000000..53575ee15 --- /dev/null +++ b/arch/sparc/vdso/vdso32/vdso32.lds.S @@ -0,0 +1,24 @@ +/* + * 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; + gettimeofday; + __vdso_gettimeofday; + local: *; + }; +} |