From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/tools/testing/selftests/rseq/rseq.h | 42 +++++++++++++++++++++++++++---------------
1 files changed, 27 insertions(+), 15 deletions(-)
diff --git a/kernel/tools/testing/selftests/rseq/rseq.h b/kernel/tools/testing/selftests/rseq/rseq.h
index c72eb70..9d850b2 100644
--- a/kernel/tools/testing/selftests/rseq/rseq.h
+++ b/kernel/tools/testing/selftests/rseq/rseq.h
@@ -16,8 +16,9 @@
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
-#include <sched.h>
-#include <linux/rseq.h>
+#include <stddef.h>
+#include "rseq-abi.h"
+#include "compiler.h"
/*
* Empty code injection macros, override when testing.
@@ -44,7 +45,20 @@
#define RSEQ_INJECT_FAILED
#endif
-extern __thread volatile struct rseq __rseq_abi;
+#include "rseq-thread-pointer.h"
+
+/* Offset from the thread pointer to the rseq area. */
+extern ptrdiff_t rseq_offset;
+/* Size of the registered rseq area. 0 if the registration was
+ unsuccessful. */
+extern unsigned int rseq_size;
+/* Flags used during rseq registration. */
+extern unsigned int rseq_flags;
+
+static inline struct rseq_abi *rseq_get_abi(void)
+{
+ return (struct rseq_abi *) ((uintptr_t) rseq_thread_pointer() + rseq_offset);
+}
#define rseq_likely(x) __builtin_expect(!!(x), 1)
#define rseq_unlikely(x) __builtin_expect(!!(x), 0)
@@ -108,7 +122,7 @@
*/
static inline int32_t rseq_current_cpu_raw(void)
{
- return RSEQ_ACCESS_ONCE(__rseq_abi.cpu_id);
+ return RSEQ_ACCESS_ONCE(rseq_get_abi()->cpu_id);
}
/*
@@ -124,7 +138,7 @@
*/
static inline uint32_t rseq_cpu_start(void)
{
- return RSEQ_ACCESS_ONCE(__rseq_abi.cpu_id_start);
+ return RSEQ_ACCESS_ONCE(rseq_get_abi()->cpu_id_start);
}
static inline uint32_t rseq_current_cpu(void)
@@ -139,21 +153,19 @@
static inline void rseq_clear_rseq_cs(void)
{
-#ifdef __LP64__
- __rseq_abi.rseq_cs.ptr = 0;
-#else
- __rseq_abi.rseq_cs.ptr.ptr32 = 0;
-#endif
+ RSEQ_WRITE_ONCE(rseq_get_abi()->rseq_cs.arch.ptr, 0);
}
/*
* rseq_prepare_unload() should be invoked by each thread executing a rseq
* critical section at least once between their last critical section and
- * library unload of the library defining the rseq critical section
- * (struct rseq_cs). This also applies to use of rseq in code generated by
- * JIT: rseq_prepare_unload() should be invoked at least once by each
- * thread executing a rseq critical section before reclaim of the memory
- * holding the struct rseq_cs.
+ * library unload of the library defining the rseq critical section (struct
+ * rseq_cs) or the code referred to by the struct rseq_cs start_ip and
+ * post_commit_offset fields. This also applies to use of rseq in code
+ * generated by JIT: rseq_prepare_unload() should be invoked at least once by
+ * each thread executing a rseq critical section before reclaim of the memory
+ * holding the struct rseq_cs or reclaim of the code pointed to by struct
+ * rseq_cs start_ip and post_commit_offset fields.
*/
static inline void rseq_prepare_unload(void)
{
--
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