Commit 168d23e5 authored by Thomas Weißschuh's avatar Thomas Weißschuh Committed by Thomas Gleixner
Browse files

sparc64: vdso2c: Remove symbol handling 



There are no handled symbols left.

Signed-off-by: default avatarThomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: default avatarThomas Gleixner <tglx@kernel.org>
Tested-by: default avatarAndreas Larsson <andreas@gaisler.com>
Reviewed-by: default avatarAndreas Larsson <andreas@gaisler.com>
Acked-by: default avatarAndreas Larsson <andreas@gaisler.com>
Link: https://patch.msgid.link/20260304-vdso-sparc64-generic-2-v6-12-d8eb3b0e1410@linutronix.de
parent fb57f3e7

arch/sparc/vdso/vdso2c.c

+0 −10
Original line number Diff line number Diff line
@@ -58,14 +58,6 @@ 


const char *outfilename;



struct vdso_sym {

	const char *name;

	int export;

};



struct vdso_sym required_syms[] = {

};



__attribute__((format(printf, 1, 2))) __attribute__((noreturn))

static void fail(const char *format, ...)

{
@@ -105,8 +97,6 @@ static void fail(const char *format, ...) 
#define PUT_BE(x, val)					\

	PBE(x, val, 64, PBE(x, val, 32, PBE(x, val, 16, LAST_PBE(x, val))))



#define NSYMS ARRAY_SIZE(required_syms)



#define BITSFUNC3(name, bits, suffix) name##bits##suffix

#define BITSFUNC2(name, bits, suffix) BITSFUNC3(name, bits, suffix)

#define BITSFUNC(name) BITSFUNC2(name, ELF_BITS, )

arch/sparc/vdso/vdso2c.h

+1 −40
Original line number Diff line number Diff line
@@ -17,11 +17,9 @@ static void BITSFUNC(go)(void *raw_addr, size_t raw_len, 
	unsigned long mapping_size;

	int i;

	unsigned long j;

	ELF(Shdr) *symtab_hdr = NULL, *strtab_hdr;

	ELF(Shdr) *symtab_hdr = NULL;

	ELF(Ehdr) *hdr = (ELF(Ehdr) *)raw_addr;

	ELF(Dyn) *dyn = 0, *dyn_end = 0;

	INT_BITS syms[NSYMS] = {};



	ELF(Phdr) *pt = (ELF(Phdr) *)(raw_addr + GET_BE(&hdr->e_phoff));



	/* Walk the segment table. */
@@ -72,38 +70,6 @@ static void BITSFUNC(go)(void *raw_addr, size_t raw_len, 
	if (!symtab_hdr)

		fail("no symbol table\n");



	strtab_hdr = raw_addr + GET_BE(&hdr->e_shoff) +

		GET_BE(&hdr->e_shentsize) * GET_BE(&symtab_hdr->sh_link);



	/* Walk the symbol table */

	for (i = 0;

	     i < GET_BE(&symtab_hdr->sh_size) / GET_BE(&symtab_hdr->sh_entsize);

	     i++) {

		int k;



		ELF(Sym) *sym = raw_addr + GET_BE(&symtab_hdr->sh_offset) +

			GET_BE(&symtab_hdr->sh_entsize) * i;

		const char *name = raw_addr + GET_BE(&strtab_hdr->sh_offset) +

			GET_BE(&sym->st_name);



		for (k = 0; k < NSYMS; k++) {

			if (!strcmp(name, required_syms[k].name)) {

				if (syms[k]) {

					fail("duplicate symbol %s\n",

					     required_syms[k].name);

				}



				/*

				 * Careful: we use negative addresses, but

				 * st_value is unsigned, so we rely

				 * on syms[k] being a signed type of the

				 * correct width.

				 */

				syms[k] = GET_BE(&sym->st_value);

			}

		}

	}



	if (!name) {

		fwrite(stripped_addr, stripped_len, 1, outfile);

		return;
@@ -129,10 +95,5 @@ static void BITSFUNC(go)(void *raw_addr, size_t raw_len, 
	fprintf(outfile, "const struct vdso_image %s_builtin = {\n", name);

	fprintf(outfile, "\t.data = raw_data,\n");

	fprintf(outfile, "\t.size = %lu,\n", mapping_size);

	for (i = 0; i < NSYMS; i++) {

		if (required_syms[i].export && syms[i])

			fprintf(outfile, "\t.sym_%s = %" PRIi64 ",\n",

				required_syms[i].name, (int64_t)syms[i]);

	}

	fprintf(outfile, "};\n");

}