Merge bitcoin/bitcoin#26945: depends: systemtap 4.8

df7ae8b depends: systemtap: remove variadic params that trigger compiler warnings (Cory Fields)
a66d82e depends: systemtap 4.8 (fanquake)

Pull request description:

  Updates systemtap to 4.8.
  Includes acc2895a66a4b654e9a0a05ed0927f67f48c75b2 from #25972.
  Will half (depends) fix #26916.

  Release notes etc: https://lwn.net/Articles/913908/.

ACKs for top commit:
  0xB10C:
    ACK df7ae8b
  hebasto:
    re-ACK df7ae8b.

Tree-SHA512: 0f64fba87888058380183f38b6ace7b71f4a8b5503eb32b82b283a40c99d92c449c60deecc2386df5084235cfd760af6c1e7f432fa1bd30f97bb42f100f23d62

Author: fanquake

depends/packages/systemtap.mk

@@ -1,12 +1,13 @@
 package=systemtap
-$(package)_version=4.7
+$(package)_version=4.8
 $(package)_download_path=https://sourceware.org/ftp/systemtap/releases/
 $(package)_file_name=$(package)-$($(package)_version).tar.gz
-$(package)_sha256_hash=43a0a3db91aa4d41e28015b39a65e62059551f3cc7377ebf3a3a5ca7339e7b1f
-$(package)_patches=remove_SDT_ASM_SECTION_AUTOGROUP_SUPPORT_check.patch
+$(package)_sha256_hash=cbd50a4eba5b261394dc454c12448ddec73e55e6742fda7f508f9fbc1331c223
+$(package)_patches=remove_SDT_ASM_SECTION_AUTOGROUP_SUPPORT_check.patch fix_variadic_warning.patch
 
 define $(package)_preprocess_cmds
   patch -p1 < $($(package)_patch_dir)/remove_SDT_ASM_SECTION_AUTOGROUP_SUPPORT_check.patch && \
+  patch -p1 < $($(package)_patch_dir)/fix_variadic_warning.patch && \
   mkdir -p $($(package)_staging_prefix_dir)/include/sys && \
   cp includes/sys/sdt.h $($(package)_staging_prefix_dir)/include/sys/sdt.h
 endef

depends/patches/systemtap/fix_variadic_warning.patch

@@ -0,0 +1,16 @@
+Could be dropped after a migration to C++20.
+See: https://github.com/bitcoin/bitcoin/issues/26916.
+
+diff --git a/includes/sys/sdt.h b/includes/sys/sdt.h
+index 4075a5f..7c6138c 100644
+--- a/includes/sys/sdt.h
++++ b/includes/sys/sdt.h
+@@ -276,7 +276,7 @@ __extension__ extern unsigned long long __sdt_unsp;
+   _SDT_ASM_1(.purgem _SDT_TYPE_)					      \
+   _SDT_ASM_1(.purgem _SDT_TYPE)
+ 
+-#define _SDT_ASM_BODY(provider, name, pack_args, args, ...)		      \
++#define _SDT_ASM_BODY(provider, name, pack_args, args)		            \
+   _SDT_DEF_MACROS							      \
+   _SDT_ASM_1(990:	_SDT_NOP)					      \
+   _SDT_ASM_3(		.pushsection .note.stapsdt,_SDT_ASM_AUTOGROUP,"note") \