1 files changed, 0 insertions, 122 deletions
diff --git a/scripts/gcc-plugins/arm_ssp_per_task_plugin.c b/scripts/gcc-plugins/arm_ssp_per_task_plugin.c
deleted file mode 100644
index 89c47f57d1ce..000000000000
--- a/scripts/gcc-plugins/arm_ssp_per_task_plugin.c
+++ /dev/null
@@ -1,122 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-
-#include "gcc-common.h"
-
-__visible int plugin_is_GPL_compatible;
-
-static unsigned int sp_mask, canary_offset;
-
-static unsigned int arm_pertask_ssp_rtl_execute(void)
-{
-	rtx_insn *insn;
-
-	for (insn = get_insns(); insn; insn = NEXT_INSN(insn)) {
-		const char *sym;
-		rtx body;
-		rtx mask, masked_sp;
-
-		/*
-		 * Find a SET insn involving a SYMBOL_REF to __stack_chk_guard
-		 */
-		if (!INSN_P(insn))
-			continue;
-		body = PATTERN(insn);
-		if (GET_CODE(body) != SET ||
-		    GET_CODE(SET_SRC(body)) != SYMBOL_REF)
-			continue;
-		sym = XSTR(SET_SRC(body), 0);
-		if (strcmp(sym, "__stack_chk_guard"))
-			continue;
-
-		/*
-		 * Replace the source of the SET insn with an expression that
-		 * produces the address of the copy of the stack canary value
-		 * stored in struct thread_info
-		 */
-		mask = GEN_INT(sext_hwi(sp_mask, GET_MODE_PRECISION(Pmode)));
-		masked_sp = gen_reg_rtx(Pmode);
-
-		emit_insn_before(gen_rtx_SET(masked_sp,
-					     gen_rtx_AND(Pmode,
-							 stack_pointer_rtx,
-							 mask)),
-				 insn);
-
-		SET_SRC(body) = gen_rtx_PLUS(Pmode, masked_sp,
-					     GEN_INT(canary_offset));
-	}
-	return 0;
-}
-
-#define PASS_NAME arm_pertask_ssp_rtl
-
-#define NO_GATE
-#include "gcc-generate-rtl-pass.h"
-
-#if BUILDING_GCC_VERSION >= 9000
-static bool no(void)
-{
-	return false;
-}
-
-static void arm_pertask_ssp_start_unit(void *gcc_data, void *user_data)
-{
-	targetm.have_stack_protect_combined_set = no;
-	targetm.have_stack_protect_combined_test = no;
-}
-#endif
-
-__visible int plugin_init(struct plugin_name_args *plugin_info,
-			  struct plugin_gcc_version *version)
-{
-	const char * const plugin_name = plugin_info->base_name;
-	const int argc = plugin_info->argc;
-	const struct plugin_argument *argv = plugin_info->argv;
-	int tso = 0;
-	int i;
-
-	if (!plugin_default_version_check(version, &gcc_version)) {
-		error(G_("incompatible gcc/plugin versions"));
-		return 1;
-	}
-
-	for (i = 0; i < argc; ++i) {
-		if (!strcmp(argv[i].key, "disable"))
-			return 0;
-
-		/* all remaining options require a value */
-		if (!argv[i].value) {
-			error(G_("no value supplied for option '-fplugin-arg-%s-%s'"),
-			      plugin_name, argv[i].key);
-			return 1;
-		}
-
-		if (!strcmp(argv[i].key, "tso")) {
-			tso = atoi(argv[i].value);
-			continue;
-		}
-
-		if (!strcmp(argv[i].key, "offset")) {
-			canary_offset = atoi(argv[i].value);
-			continue;
-		}
-		error(G_("unknown option '-fplugin-arg-%s-%s'"),
-		      plugin_name, argv[i].key);
-		return 1;
-	}
-
-	/* create the mask that produces the base of the stack */
-	sp_mask = ~((1U << (12 + tso)) - 1);
-
-	PASS_INFO(arm_pertask_ssp_rtl, "expand", 1, PASS_POS_INSERT_AFTER);
-
-	register_callback(plugin_info->base_name, PLUGIN_PASS_MANAGER_SETUP,
-			  NULL, &arm_pertask_ssp_rtl_pass_info);
-
-#if BUILDING_GCC_VERSION >= 9000
-	register_callback(plugin_info->base_name, PLUGIN_START_UNIT,
-			  arm_pertask_ssp_start_unit, NULL);
-#endif
-
-	return 0;
-}