From b0d746aba6a1350b4161dd33a339e7d7536437d7 Mon Sep 17 00:00:00 2001
From: Cy Schubert <cy@FreeBSD.org>
Date: Tue, 18 Feb 2025 16:10:56 -0800
Subject: shells/44bsd-csh: Replace local functions with malloc functions

Local functions called sbrk(2) directly. sbrk(2) will disappear at some
point. Removing it now reduces the sbrk footprint and allows other
architectures that do not support sbrk(2) to install this port.
---
 shells/44bsd-csh/files/patch-alloc.c | 64 ++++++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 shells/44bsd-csh/files/patch-alloc.c

(limited to 'shells/44bsd-csh/files/patch-alloc.c')

diff --git a/shells/44bsd-csh/files/patch-alloc.c b/shells/44bsd-csh/files/patch-alloc.c
new file mode 100644
index 000000000000..67a61d3183b1
--- /dev/null
+++ b/shells/44bsd-csh/files/patch-alloc.c
@@ -0,0 +1,64 @@
+--- alloc.c.orig	2025-02-18 15:59:35.263097000 -0800
++++ alloc.c	2025-02-18 16:02:58.402654000 -0800
+@@ -55,61 +55,6 @@
+ char   *memtop = NULL;		/* PWP: top of current memory */
+ char   *membot = NULL;		/* PWP: bottom of allocatable memory */
+ 
+-ptr_t
+-Malloc(n)
+-    size_t  n;
+-{
+-    ptr_t   ptr;
+-
+-    if (membot == NULL)
+-	memtop = membot = sbrk(0);
+-    if ((ptr = malloc(n)) == (ptr_t) 0) {
+-	child++;
+-	stderror(ERR_NOMEM);
+-    }
+-    return (ptr);
+-}
+-
+-ptr_t
+-Realloc(p, n)
+-    ptr_t   p;
+-    size_t  n;
+-{
+-    ptr_t   ptr;
+-
+-    if (membot == NULL)
+-	memtop = membot = sbrk(0);
+-    if ((ptr = realloc(p, n)) == (ptr_t) 0) {
+-	child++;
+-	stderror(ERR_NOMEM);
+-    }
+-    return (ptr);
+-}
+-
+-ptr_t
+-Calloc(s, n)
+-    size_t  s, n;
+-{
+-    ptr_t   ptr;
+-
+-    if (membot == NULL)
+-	memtop = membot = sbrk(0);
+-    if ((ptr = calloc(s, n)) == (ptr_t) 0) {
+-	child++;
+-	stderror(ERR_NOMEM);
+-    }
+-
+-    return (ptr);
+-}
+-
+-void
+-Free(p)
+-    ptr_t   p;
+-{
+-    if (p)
+-	free(p);
+-}
+-
+ /*
+  * mstats - print out statistics about malloc
+  *
-- 
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