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0001-XXX-pcpu-demo-functions.patch
rlibby (Ryan Libby)
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rlibby
Jul 1 2024, 4:53 PM
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0001-XXX-pcpu-demo-functions.patch
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From b7ead750149f923b1284ed3afbce9d33cda986d3 Mon Sep 17 00:00:00 2001
From: Ryan Libby <rlibby@FreeBSD.org>
Date: Sat, 29 Jun 2024 17:33:24 -0700
Subject: [PATCH] XXX pcpu demo functions
Thin wrappers around PCPU macros to examine codegen.
---
sys/conf/files | 1 +
sys/kern/pcpu_demo.c | 57 ++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 58 insertions(+)
create mode 100644 sys/kern/pcpu_demo.c
diff --git a/sys/conf/files b/sys/conf/files
index 968894ea948b..bfafe8043c6f 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -5283,3 +5283,4 @@ xdr/xdr_mbuf.c optional xdr | krpc | nfslockd | nfscl | nfsd
xdr/xdr_mem.c optional xdr | krpc | nfslockd | nfscl | nfsd
xdr/xdr_reference.c optional xdr | krpc | nfslockd | nfscl | nfsd
xdr/xdr_sizeof.c optional xdr | krpc | nfslockd | nfscl | nfsd
+kern/pcpu_demo.c standard
diff --git a/sys/kern/pcpu_demo.c b/sys/kern/pcpu_demo.c
new file mode 100644
index 000000000000..e099ba434b8b
--- /dev/null
+++ b/sys/kern/pcpu_demo.c
@@ -0,0 +1,57 @@
+#include <sys/cdefs.h>
+#include <sys/pcpu.h>
+#include <sys/proc.h>
+
+static struct pcpu * __used
+pcpu_demo_get_pcpu(void)
+{
+ return get_pcpu();
+}
+
+static unsigned int __used
+pcpu_demo_get(void)
+{
+ return PCPU_GET(cpuid);
+}
+
+static void __used
+pcpu_demo_add(unsigned int x)
+{
+ PCPU_ADD(cpuid, x);
+}
+
+static void __used
+pcpu_demo_set(unsigned int x)
+{
+ PCPU_SET(cpuid, x);
+}
+
+static unsigned int * __used
+pcpu_demo_ptr(void)
+{
+ return PCPU_PTR(cpuid);
+}
+
+static unsigned int __used
+pcpu_demo_ptr_get(void)
+{
+ return *PCPU_PTR(cpuid);
+}
+
+static void __used
+pcpu_demo_ptr_set(unsigned int x)
+{
+ *PCPU_PTR(cpuid) = x;
+}
+
+static struct thread * __used
+pcpu_demo_curthread(void)
+{
+ return curthread;
+}
+
+static struct pcb * __used
+pcpu_demo_curpcb(void)
+{
+ return curpcb;
+}
--
2.45.2

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