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um: ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names

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Instead of having the core code guess the note name for each regset,
use USER_REGSET_NOTE_TYPE() to pick the correct name from elf.h.

Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Kees Cook <kees@kernel.org>
Cc: Akihiko Odaki <akihiko.odaki@daynix.com>
Cc: linux-um@lists.infradead.org
Cc: x86@kernel.org
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Tested-by: Johannes Berg <johannes@sipsolutions.net>
Reviewed-by: Akihiko Odaki <odaki@rsg.ci.i.u-tokyo.ac.jp>
Link: https://lore.kernel.org/r/20250701135616.29630-22-Dave.Martin@arm.com
Signed-off-by: Kees Cook <kees@kernel.org>
This commit is contained in:
Dave Martin 2025-07-01 14:56:14 +01:00 committed by Kees Cook
parent 3de0414dec
commit 40d3a88594
1 changed files with 5 additions and 5 deletions
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10
arch/x86/um/ptrace.c
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@ -236,7 +236,7 @@ static int generic_fpregs_set(struct task_struct *target,
static struct user_regset uml_regsets[] __ro_after_init = {
[REGSET_GENERAL] = {
.core_note_type = NT_PRSTATUS,
USER_REGSET_NOTE_TYPE(PRSTATUS),
.n = sizeof(struct user_regs_struct) / sizeof(long),
.size = sizeof(long),
.align = sizeof(long),
@ -246,7 +246,7 @@ static struct user_regset uml_regsets[] __ro_after_init = {
#ifdef CONFIG_X86_32
/* Old FP registers, they are needed in signal frames */
[REGSET_FP_LEGACY] = {
.core_note_type = NT_PRFPREG,
USER_REGSET_NOTE_TYPE(PRFPREG),
.n = sizeof(struct user_i387_ia32_struct) / sizeof(long),
.size = sizeof(long),
.align = sizeof(long),
@ -257,10 +257,10 @@ static struct user_regset uml_regsets[] __ro_after_init = {
#endif
[REGSET_FP] = {
#ifdef CONFIG_X86_32
.core_note_type = NT_PRXFPREG,
USER_REGSET_NOTE_TYPE(PRXFPREG),
.n = sizeof(struct user32_fxsr_struct) / sizeof(long),
#else
.core_note_type = NT_PRFPREG,
USER_REGSET_NOTE_TYPE(PRFPREG),
.n = sizeof(struct user_i387_struct) / sizeof(long),
#endif
.size = sizeof(long),
@ -270,7 +270,7 @@ static struct user_regset uml_regsets[] __ro_after_init = {
.set = generic_fpregs_set,
},
[REGSET_XSTATE] = {
.core_note_type = NT_X86_XSTATE,
USER_REGSET_NOTE_TYPE(X86_XSTATE),
.size = sizeof(long),
.align = sizeof(long),
.active = generic_fpregs_active,