From f4432625edd64df94ce7c2a085f256dbc4d2b215 Mon Sep 17 00:00:00 2001 From: John Baldwin Date: Sun, 4 Dec 2022 16:28:59 -0800 Subject: [PATCH] acpica: Quiet a -Wdangling-pointer warning in AcpiUtInitStackPtrTrace. This function intentionally saves a pointer to an on-stack variable in a global as a dubious way of reading the stack pointer. Reviewed by: imp, emaste Differential Revision: https://reviews.freebsd.org/D37535 --- usr.sbin/acpi/acpidb/Makefile | 4 ++++ usr.sbin/acpi/iasl/Makefile | 4 ++++ 2 files changed, 8 insertions(+) diff --git a/usr.sbin/acpi/acpidb/Makefile b/usr.sbin/acpi/acpidb/Makefile index 892f1e8c0cd..ca9c90f2646 100644 --- a/usr.sbin/acpi/acpidb/Makefile +++ b/usr.sbin/acpi/acpidb/Makefile @@ -90,3 +90,7 @@ LIBADD= pthread .if ${COMPILER_TYPE} == "clang" CWARNFLAGS+= -Wno-null-pointer-arithmetic .endif + +# AcpiUtInitStackPtrTrace intentionally leaks a pointer to an +# on-stack variable. +CWARNFLAGS.utdebug.c+= ${NO_WDANGLING_POINTER} diff --git a/usr.sbin/acpi/iasl/Makefile b/usr.sbin/acpi/iasl/Makefile index 15b6d7a03c3..6b95cc1d745 100644 --- a/usr.sbin/acpi/iasl/Makefile +++ b/usr.sbin/acpi/iasl/Makefile @@ -147,4 +147,8 @@ prparserparse.c prparserparse.h: prparser.y prparser.y.h: prparserparse.h .NOMETA ln -f ${.ALLSRC} ${.TARGET} +# AcpiUtInitStackPtrTrace intentionally leaks a pointer to an +# on-stack variable. +CWARNFLAGS.utdebug.c+= ${NO_WDANGLING_POINTER} + .include