git: 94671881419f - stable/14 - libc: Centralize non-building of sbrk stubs

From: Brooks Davis <brooks_at_FreeBSD.org>
Date: Tue, 02 Jan 2024 17:00:10 UTC
The branch stable/14 has been updated by brooks:

URL: https://cgit.FreeBSD.org/src/commit/?id=94671881419f0fb8014006266e5505feaf23daeb

commit 94671881419f0fb8014006266e5505feaf23daeb
Author:     Brooks Davis <brooks@FreeBSD.org>
AuthorDate: 2024-01-02 16:22:13 +0000
Commit:     Brooks Davis <brooks@FreeBSD.org>
CommitDate: 2024-01-02 16:22:13 +0000

    libc: Centralize non-building of sbrk stubs
    
    The actual implementation of sbrk(2) is on top of the undocumented
    break(2) system call.  On powerpc* this means we don't build _sbrk and
    __sys_sbrk which were neither used nor exposed for linkage.  Otherwise
    it is a no-op.
    
    The addition to lib/libc/sys/Makefile.inc is a direct commit to
    stable/14 in lieu of merging the removal of the sbrk and sstk syscalls.
    
    (cherry picked from commit 7893419d492c40ca82b68fca3dcc0f5f7047d39b)
    
    Reviewed by:    kib
    Differential Revision:  https://reviews.freebsd.org/D43159
---
 lib/libc/aarch64/sys/Makefile.inc | 3 +--
 lib/libc/amd64/sys/Makefile.inc   | 2 +-
 lib/libc/arm/sys/Makefile.inc     | 2 +-
 lib/libc/i386/sys/Makefile.inc    | 2 +-
 lib/libc/riscv/sys/Makefile.inc   | 2 +-
 lib/libc/sys/Makefile.inc         | 1 +
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/lib/libc/aarch64/sys/Makefile.inc b/lib/libc/aarch64/sys/Makefile.inc
index 7cb0544a2997..ae48fd739477 100644
--- a/lib/libc/aarch64/sys/Makefile.inc
+++ b/lib/libc/aarch64/sys/Makefile.inc
@@ -8,5 +8,4 @@ MDASM=	cerror.S \
 	vfork.S
 
 # Don't generate default code for these syscalls:
-NOASM+=	sbrk.o \
-	vfork.o
+NOASM+=	vfork.o
diff --git a/lib/libc/amd64/sys/Makefile.inc b/lib/libc/amd64/sys/Makefile.inc
index 32c03ccf2963..658fbd2add50 100644
--- a/lib/libc/amd64/sys/Makefile.inc
+++ b/lib/libc/amd64/sys/Makefile.inc
@@ -7,4 +7,4 @@ SRCS+=	\
 MDASM=	vfork.S cerror.S getcontext.S
 
 # Don't generate default code for these syscalls:
-NOASM+=	sbrk.o vfork.o
+NOASM+=	vfork.o
diff --git a/lib/libc/arm/sys/Makefile.inc b/lib/libc/arm/sys/Makefile.inc
index 398ac494f2bc..3a86936a7b23 100644
--- a/lib/libc/arm/sys/Makefile.inc
+++ b/lib/libc/arm/sys/Makefile.inc
@@ -4,4 +4,4 @@ SRCS+=	__vdso_gettc.c \
 MDASM= Ovfork.S cerror.S syscall.S
 
 # Don't generate default code for these syscalls:
-NOASM+=	sbrk.o vfork.o
+NOASM+=	vfork.o
diff --git a/lib/libc/i386/sys/Makefile.inc b/lib/libc/i386/sys/Makefile.inc
index accdc3367ac8..57a8af428aca 100644
--- a/lib/libc/i386/sys/Makefile.inc
+++ b/lib/libc/i386/sys/Makefile.inc
@@ -4,7 +4,7 @@ SRCS+=	i386_get_fsbase.c i386_get_gsbase.c i386_get_ioperm.c i386_get_ldt.c \
 
 MDASM=	Ovfork.S cerror.S getcontext.S syscall.S
 
-NOASM+=	sbrk.o vfork.o
+NOASM+=	vfork.o
 
 MAN+=	i386_get_ioperm.2 i386_get_ldt.2 i386_vm86.2
 MAN+=	i386_set_watch.3
diff --git a/lib/libc/riscv/sys/Makefile.inc b/lib/libc/riscv/sys/Makefile.inc
index f1cc8d489553..cd8ba4f11557 100644
--- a/lib/libc/riscv/sys/Makefile.inc
+++ b/lib/libc/riscv/sys/Makefile.inc
@@ -6,4 +6,4 @@ MDASM=	cerror.S \
 	vfork.S
 
 # Don't generate default code for these syscalls:
-NOASM+=	sbrk.o vfork.o
+NOASM+=	vfork.o
diff --git a/lib/libc/sys/Makefile.inc b/lib/libc/sys/Makefile.inc
index 480002f9875e..1acc66c5f726 100644
--- a/lib/libc/sys/Makefile.inc
+++ b/lib/libc/sys/Makefile.inc
@@ -18,6 +18,7 @@
 #
 NOASM=	exit.o \
 	getlogin.o \
+	sbrk.o \
 	sstk.o \
 	yield.o
 PSEUDO=	_exit.o \