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sparc64: vdso: Remove obsolete "fake section table" reservation

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When the vDSO logic was copied from x86 to SPARC some unused remnants of
the fake section handling were copied, too. In x86 the original fake
section handling had already been removed incompletely in commit
da861e18ec ("x86, vdso: Get rid of the fake section mechanism").
On x86 the reservation was only cleaned up in commit 24b7c77bbb
("x86/vdso: Remove obsolete "fake section table" reservation").

Remove the reservation for SPARC, too.

Fixes: 9a08862a5d ("vDSO for sparc")
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Tested-by: Andreas Larsson <andreas@gaisler.com>
Reviewed-by: Andreas Larsson <andreas@gaisler.com>
Acked-by: Andreas Larsson <andreas@gaisler.com>
Link: https://patch.msgid.link/20260304-vdso-sparc64-generic-2-v6-5-d8eb3b0e1410@linutronix.de
This commit is contained in:
Thomas Weißschuh 2026-03-04 08:49:02 +01:00 committed by Thomas Gleixner
parent acc4f131d5
commit 9fc4fe6e14
2 changed files with 0 additions and 29 deletions
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21
arch/sparc/vdso/vdso-layout.lds.S
View File

@ -4,16 +4,6 @@
* This script controls its layout.
*/
#if defined(BUILD_VDSO64)
# define SHDR_SIZE 64
#elif defined(BUILD_VDSO32)
# define SHDR_SIZE 40
#else
# error unknown VDSO target
#endif
#define NUM_FAKE_SHDRS 7
SECTIONS
{
/*
@ -47,19 +37,8 @@ SECTIONS
*(.bss*)
*(.dynbss*)
*(.gnu.linkonce.b.*)
/*
* Ideally this would live in a C file: kept in here for
* compatibility with x86-64.
*/
VDSO_FAKE_SECTION_TABLE_START = .;
. = . + NUM_FAKE_SHDRS * SHDR_SIZE;
VDSO_FAKE_SECTION_TABLE_END = .;
} :text
.fake_shstrtab : { *(.fake_shstrtab) } :text
.note : { *(.note.*) } :text :note
.eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr

8
arch/sparc/vdso/vdso2c.c
View File

@ -61,8 +61,6 @@ const char *outfilename;
/* Symbols that we need in vdso2c. */
enum {
sym_vvar_start,
sym_VDSO_FAKE_SECTION_TABLE_START,
sym_VDSO_FAKE_SECTION_TABLE_END,
};
struct vdso_sym {
@ -72,12 +70,6 @@ struct vdso_sym {
struct vdso_sym required_syms[] = {
[sym_vvar_start] = {"vvar_start", 1},
[sym_VDSO_FAKE_SECTION_TABLE_START] = {
"VDSO_FAKE_SECTION_TABLE_START", 0
},
[sym_VDSO_FAKE_SECTION_TABLE_END] = {
"VDSO_FAKE_SECTION_TABLE_END", 0
},
};
__attribute__((format(printf, 1, 2))) __attribute__((noreturn))