Merge tag 'execve-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull execve updates from Kees Cook:

 - Introduce regular REGSET note macros arch-wide (Dave Martin)

 - Remove arbitrary 4K limitation of program header size (Yin Fengwei)

 - Reorder function qualifiers for copy_clone_args_from_user() (Dishank Jogi)

* tag 'execve-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (25 commits)
  fork: reorder function qualifiers for copy_clone_args_from_user
  binfmt_elf: remove the 4k limitation of program header size
  binfmt_elf: Warn on missing or suspicious regset note names
  xtensa: ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names
  um: ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names
  x86/ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names
  sparc: ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names
  sh: ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names
  s390/ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names
  riscv: ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names
  powerpc/ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names
  parisc: ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names
  openrisc: ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names
  nios2: ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names
  MIPS: ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names
  m68k: ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names
  LoongArch: ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names
  hexagon: ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names
  csky: ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names
  arm64: ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names
  ...

1 files changed, 11 insertions, 1 deletions

diff --git a/include/linux/regset.h b/include/linux/regset.h
index 9061266dd8de..ad1ca6fe04f4 100644
--- a/include/linux/regset.h
+++ b/include/linux/regset.h
@@ -151,7 +151,8 @@ typedef int user_regset_writeback_fn(struct task_struct *target,
  * @align:		Required alignment, in bytes.
  * @bias:		Bias from natural indexing.
  * @core_note_type:	ELF note @n_type value used in core dumps.
- * @get:		Function to fetch values.
+ * @core_note_name:	ELF note name to qualify the note type.
+ * @regset_get:		Function to fetch values.
  * @set:		Function to store values.
  * @active:		Function to report if regset is active, or %NULL.
  * @writeback:		Function to write data back to user memory, or %NULL.
@@ -190,6 +191,10 @@ typedef int user_regset_writeback_fn(struct task_struct *target,
  *
  * If nonzero, @core_note_type gives the n_type field (NT_* value)
  * of the core file note in which this regset's data appears.
+ * @core_note_name specifies the note name.  The preferred way to
+ * specify these two fields is to use the @USER_REGSET_NOTE_TYPE()
+ * macro.
+ *
  * NT_PRSTATUS is a special case in that the regset data starts at
  * offsetof(struct elf_prstatus, pr_reg) into the note data; that is
  * part of the per-machine ELF formats userland knows about.  In
@@ -207,8 +212,13 @@ struct user_regset {
 	unsigned int 			align;
 	unsigned int 			bias;
 	unsigned int 			core_note_type;
+	const char			*core_note_name;
 };
 
+#define USER_REGSET_NOTE_TYPE(type) \
+	.core_note_type			= (NT_ ## type), \
+	.core_note_name			= (NN_ ## type)
+
 /**
  * struct user_regset_view - available regsets
  * @name:	Identifier, e.g. UTS_MACHINE string.