@@ -24,10 +24,6 @@ SECTIONS
pvclock_page = vclock_pages + VDSO_PAGE_PVCLOCK_OFFSET * PAGE_SIZE;
hvclock_page = vclock_pages + VDSO_PAGE_HVCLOCK_OFFSET * PAGE_SIZE;
- /* For compatibility with vdso2c */
- vvar_page = vdso_u_data;
- vvar_start = vdso_u_data;
-
. = SIZEOF_HEADERS;
.hash : { *(.hash) } :text
@@ -69,33 +69,12 @@
const char *outfilename;
-/* Symbols that we need in vdso2c. */
-enum {
- sym_vvar_start,
- sym_vvar_page,
- sym_pvclock_page,
- sym_hvclock_page,
- sym_timens_page,
-};
-
-const int special_pages[] = {
- sym_vvar_page,
- sym_pvclock_page,
- sym_hvclock_page,
- sym_timens_page,
-};
-
struct vdso_sym {
const char *name;
bool export;
};
struct vdso_sym required_syms[] = {
- [sym_vvar_start] = {"vvar_start", true},
- [sym_vvar_page] = {"vvar_page", true},
- [sym_pvclock_page] = {"pvclock_page", true},
- [sym_hvclock_page] = {"hvclock_page", true},
- [sym_timens_page] = {"timens_page", true},
{"VDSO32_NOTE_MASK", true},
{"__kernel_vsyscall", true},
{"__kernel_sigreturn", true},
@@ -150,26 +150,6 @@ static void BITSFUNC(go)(void *raw_addr, size_t raw_len,
}
}
- /* Validate mapping addresses. */
- for (i = 0; i < sizeof(special_pages) / sizeof(special_pages[0]); i++) {
- INT_BITS symval = syms[special_pages[i]];
-
- if (!symval)
- continue; /* The mapping isn't used; ignore it. */
-
- if (symval % 4096)
- fail("%s must be a multiple of 4096\n",
- required_syms[i].name);
- if (symval + 4096 < syms[sym_vvar_start])
- fail("%s underruns vvar_start\n",
- required_syms[i].name);
- if (symval + 4096 > 0)
- fail("%s is on the wrong side of the vdso text\n",
- required_syms[i].name);
- }
- if (syms[sym_vvar_start] % 4096)
- fail("vvar_begin must be a multiple of 4096\n");
-
if (!image_name) {
fwrite(stripped_addr, stripped_len, 1, outfile);
return;
@@ -18,12 +18,6 @@ struct vdso_image {
unsigned long extable_base, extable_len;
const void *extable;
- long sym_vvar_start; /* Negative offset to the vvar area */
-
- long sym_vvar_page;
- long sym_pvclock_page;
- long sym_hvclock_page;
- long sym_timens_page;
long sym_VDSO32_NOTE_MASK;
long sym___kernel_sigreturn;
long sym___kernel_rt_sigreturn;
The values are not used anymore. Also the sanity checks performed by vdso2c can never trigger as they only validate invariants already enforced by the linker script. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> --- arch/x86/entry/vdso/vdso-layout.lds.S | 4 ---- arch/x86/entry/vdso/vdso2c.c | 21 --------------------- arch/x86/entry/vdso/vdso2c.h | 20 -------------------- arch/x86/include/asm/vdso.h | 6 ------ 4 files changed, 51 deletions(-)