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shells/44bsd-csh: Replace local functions with malloc functions

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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.
This commit is contained in:
Cy Schubert 2025-02-18 16:10:56 -08:00
parent 999be5f9b5
commit b0d746aba6
3 changed files with 82 additions and 1 deletions
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2
shells/44bsd-csh/Makefile
View file

@ -1,6 +1,6 @@
PORTNAME= 44bsd-csh
PORTVERSION= 20001106
PORTREVISION= 6
PORTREVISION= 7
CATEGORIES= shells
MASTER_SITES= LOCAL/cy

64
shells/44bsd-csh/files/patch-alloc.c Normal file
View file

@ -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
*

17
shells/44bsd-csh/files/patch-csh.h Normal file
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@ -0,0 +1,17 @@
--- csh.h.orig 2025-02-18 15:59:35.265140000 -0800
+++ csh.h 2025-02-18 16:04:08.969313000 -0800
@@ -86,10 +86,10 @@
#include "char.h"
#include "errnum.h"
-#define xmalloc(i) Malloc(i)
-#define xrealloc(p, i) Realloc(p, i)
-#define xcalloc(n, s) Calloc(n, s)
-#define xfree(p) Free(p)
+#define xmalloc(i) malloc(i)
+#define xrealloc(p, i) realloc(p, i)
+#define xcalloc(n, s) calloc(n, s)
+#define xfree(p) free(p)
#include <stdio.h>
FILE *cshin, *cshout, *csherr;