Change sbrk definitions.

The prototypes difference between platform is really annoying, since it's hard to always match the system on, and prevent warning on bad types. I try now to always use BRK emulation on all platform that do not match the prototype used in ACK. the PM script should be changed to set this correctly during setup.

diff --git a/h/missing_proto.h b/h/missing_proto.h
index 3294d98..fc01704 100644 (file)
--- a/h/missing_proto.h
+++ b/h/missing_proto.h
@@ -3,7 +3,7 @@
 
 #ifdef NOSBRK
 void *sbrk(__intptr_t increment);
-int   brk(void * addr);
+void *brk(void * addr);
 #endif
 
 #ifdef NOMKTEMP
@@ -12,7 +12,7 @@ char *mktemp(char *template);
 
 #ifdef EMULATE_BRK
 void *sbrk_emu(int increment);
-int   brk_emu(void * addr);
+void *brk_emu(const void * addr);
 
 #ifdef sbrk
 #undef sbrk

diff --git a/modules/src/sbrk/sbrk_emu.c b/modules/src/sbrk/sbrk_emu.c
index f70d1fc..d8a1947 100644 (file)
--- a/modules/src/sbrk/sbrk_emu.c
+++ b/modules/src/sbrk/sbrk_emu.c
@@ -27,14 +27,14 @@ extern char *calloc();
 static void *bottom = NULL;             /* bottom of calloc()ed pseudo-heap */
 static void *brkval = NULL;             /* current value of simulated break */
 
-int brk_emu( void *endds )
+void *brk_emu(const void *endds )
 {
        int offset;
        if ( bottom == NULL )
        {
                if ( (bottom = calloc( HEAP_SIZE, 1 )) == 0 )
                {
-                       return BRK_ERR; /* unable to set up pseudo-heap */
+                       return (void *)BRK_ERR; /* unable to set up pseudo-heap */
                }
                else
                {
@@ -45,12 +45,12 @@ int brk_emu( void *endds )
        if ( (offset = endds - bottom) < 0 || offset > HEAP_SIZE )
        {
                errno = ENOMEM;
-               return BRK_ERR; /* attempt to set break out of heap */
+               return (void *)BRK_ERR; /* attempt to set break out of heap */
        }
        else
        {
-               brkval = endds;
-               return BRK_OK;
+               brkval = (void *)endds;
+               return (void *)BRK_OK;
        }
 }