Merge tag 'kbuild-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux

Pull Kbuild updates from Nathan Chancellor:

 - Extend modules.builtin.modinfo to include module aliases from
   MODULE_DEVICE_TABLE for builtin modules so that userspace tools (such
   as kmod) can verify that a particular module alias will be handled by
   a builtin module

 - Bump the minimum version of LLVM for building the kernel to 15.0.0

 - Upgrade several userspace API checks in headers_check.pl to errors

 - Unify and consolidate CONFIG_WERROR / W=e handling

 - Turn assembler and linker warnings into errors with CONFIG_WERROR /
   W=e

 - Respect CONFIG_WERROR / W=e when building userspace programs
   (userprogs)

 - Enable -Werror unconditionally when building host programs
   (hostprogs)

 - Support copy_file_range() and data segment alignment in gen_init_cpio
   to improve performance on filesystems that support reflinks such as
   btrfs and XFS

 - Miscellaneous small changes to scripts and configuration files

* tag 'kbuild-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: (47 commits)
  modpost: Initialize builtin_modname to stop SIGSEGVs
  Documentation: kbuild: note CONFIG_DEBUG_EFI in reproducible builds
  kbuild: vmlinux.unstripped should always depend on .vmlinux.export.o
  modpost: Create modalias for builtin modules
  modpost: Add modname to mod_device_table alias
  scsi: Always define blogic_pci_tbl structure
  kbuild: extract modules.builtin.modinfo from vmlinux.unstripped
  kbuild: keep .modinfo section in vmlinux.unstripped
  kbuild: always create intermediate vmlinux.unstripped
  s390: vmlinux.lds.S: Reorder sections
  KMSAN: Remove tautological checks
  objtool: Drop noinstr hack for KCSAN_WEAK_MEMORY
  lib/Kconfig.debug: Drop CLANG_VERSION check from DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT
  riscv: Remove ld.lld version checks from many TOOLCHAIN_HAS configs
  riscv: Unconditionally use linker relaxation
  riscv: Remove version check for LTO_CLANG selects
  powerpc: Drop unnecessary initializations in __copy_inst_from_kernel_nofault()
  mips: Unconditionally select ARCH_HAS_CURRENT_STACK_POINTER
  arm64: Remove tautological LLVM Kconfig conditions
  ARM: Clean up definition of ARM_HAS_GROUP_RELOCS
  ...

1 files changed, 5 insertions, 3 deletions

diff --git a/scripts/extract-vmlinux b/scripts/extract-vmlinux
index 189956b5a5c8..266df9bc7a48 100755
--- a/scripts/extract-vmlinux
+++ b/scripts/extract-vmlinux
@@ -10,12 +10,15 @@
 #
 # ----------------------------------------------------------------------
 
+me=${0##*/}
+
 check_vmlinux()
 {
 	if file "$1" | grep -q 'Linux kernel.*boot executable' ||
 		readelf -h "$1" > /dev/null 2>&1
 	then
 		cat "$1"
+		echo "$me: Extracted vmlinux using '$2' from offset $3" >&2
 		exit 0
 	fi
 }
@@ -30,12 +33,11 @@ try_decompress()
 	do
 		pos=${pos%%:*}
 		tail -c+$pos "$img" | $3 > $tmp 2> /dev/null
-		check_vmlinux $tmp
+		check_vmlinux $tmp "$3" $pos
 	done
 }
 
 # Check invocation:
-me=${0##*/}
 img=$1
 if	[ $# -ne 1 -o ! -s "$img" ]
 then
@@ -57,7 +59,7 @@ try_decompress '\002!L\030'   xxx   'lz4 -d'
 try_decompress '(\265/\375'   xxx   unzstd
 
 # Finally check for uncompressed images or objects:
-check_vmlinux $img
+check_vmlinux "$img" cat 0
 
 # Bail out:
 echo "$me: Cannot find vmlinux." >&2