From 6778948f9de86c3cfaf36725a7c87dcff9ba247f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 08:20:59 +0000
Subject: [PATCH] kernel_5.10 no rt
---
kernel/tools/perf/arch/arm64/annotate/instructions.c | 64 ++++++++++++++++++++++++++++++-
1 files changed, 61 insertions(+), 3 deletions(-)
diff --git a/kernel/tools/perf/arch/arm64/annotate/instructions.c b/kernel/tools/perf/arch/arm64/annotate/instructions.c
index 6688977..037e292 100644
--- a/kernel/tools/perf/arch/arm64/annotate/instructions.c
+++ b/kernel/tools/perf/arch/arm64/annotate/instructions.c
@@ -2,10 +2,68 @@
#include <linux/compiler.h>
#include <sys/types.h>
#include <regex.h>
+#include <stdlib.h>
struct arm64_annotate {
regex_t call_insn,
jump_insn;
+};
+
+static int arm64_mov__parse(struct arch *arch __maybe_unused,
+ struct ins_operands *ops,
+ struct map_symbol *ms __maybe_unused)
+{
+ char *s = strchr(ops->raw, ','), *target, *endptr;
+
+ if (s == NULL)
+ return -1;
+
+ *s = '\0';
+ ops->source.raw = strdup(ops->raw);
+ *s = ',';
+
+ if (ops->source.raw == NULL)
+ return -1;
+
+ target = ++s;
+ ops->target.raw = strdup(target);
+ if (ops->target.raw == NULL)
+ goto out_free_source;
+
+ ops->target.addr = strtoull(target, &endptr, 16);
+ if (endptr == target)
+ goto out_free_target;
+
+ s = strchr(endptr, '<');
+ if (s == NULL)
+ goto out_free_target;
+ endptr = strchr(s + 1, '>');
+ if (endptr == NULL)
+ goto out_free_target;
+
+ *endptr = '\0';
+ *s = ' ';
+ ops->target.name = strdup(s);
+ *s = '<';
+ *endptr = '>';
+ if (ops->target.name == NULL)
+ goto out_free_target;
+
+ return 0;
+
+out_free_target:
+ zfree(&ops->target.raw);
+out_free_source:
+ zfree(&ops->source.raw);
+ return -1;
+}
+
+static int mov__scnprintf(struct ins *ins, char *bf, size_t size,
+ struct ins_operands *ops, int max_ins_name);
+
+static struct ins_ops arm64_mov_ops = {
+ .parse = arm64_mov__parse,
+ .scnprintf = mov__scnprintf,
};
static struct ins_ops *arm64__associate_instruction_ops(struct arch *arch, const char *name)
@@ -21,7 +79,7 @@
else if (!strcmp(name, "ret"))
ops = &ret_ops;
else
- return NULL;
+ ops = &arm64_mov_ops;
arch__associate_ins_ops(arch, name, ops);
return ops;
@@ -37,7 +95,7 @@
arm = zalloc(sizeof(*arm));
if (!arm)
- return -1;
+ return ENOMEM;
/* bl, blr */
err = regcomp(&arm->call_insn, "^blr?$", REG_EXTENDED);
@@ -60,5 +118,5 @@
regfree(&arm->call_insn);
out_free_arm:
free(arm);
- return -1;
+ return SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP;
}
--
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