From: Heinrich Schuchardt <xypron.glpk@gmx.de>
Date: Wed, 1 Jan 2020 12:19:12 +0000 (+0100)
Subject: efi_loader: __cyg_profile_func_enter/_exit
X-Git-Tag: v2025.01-rc5-pxa1908~2616^2~23
X-Git-Url: http://git.dujemihanovic.xyz/img/%7B%7B%20%24image.RelPermalink%20%7D%7D?a=commitdiff_plain;h=9bb758aab63dd5972b27b8dc1a0f22224b54f885;p=u-boot.git

efi_loader: __cyg_profile_func_enter/_exit

U-Boot can be compiled with function tracing enabled.

When compiling with FTRACE __cyg_profile_func_enter() is called when a
function is entered and __cyg_profile_func_exit() when the function is
left.

To avoid a crash we have to define these function for the free-standing
UEFI binaries.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---

diff --git a/lib/efi_loader/efi_freestanding.c b/lib/efi_loader/efi_freestanding.c
index bd9da5bbc8..dcf5d1c49a 100644
--- a/lib/efi_loader/efi_freestanding.c
+++ b/lib/efi_loader/efi_freestanding.c
@@ -88,3 +88,35 @@ void *memset(void *s, int c, size_t n)
 		*d++ = c;
 	return s;
 }
+
+/**
+ * __cyg_profile_func_enter() - record function entry
+ *
+ * This is called on every function entry when compiling with
+ * -finstrument-functions.
+ *
+ * We do nothing here.
+ *
+ * @param func_ptr	Pointer to function being entered
+ * @param caller	Pointer to function which called this function
+ */
+void __attribute__((no_instrument_function))
+__cyg_profile_func_enter(void *func_ptr, void *caller)
+{
+}
+
+/**
+ * __cyg_profile_func_exit() - record function exit
+ *
+ * This is called on every function exit when compiling with
+ * -finstrument-functions.
+ *
+ * We do nothing here.
+ *
+ * @param func_ptr	Pointer to function being entered
+ * @param caller	Pointer to function which called this function
+ */
+void __attribute__((no_instrument_function))
+__cyg_profile_func_exit(void *func_ptr, void *caller)
+{
+}