conservatory
/
elk
4
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

* Added more system checks. 

* Now builds on Win32.


git-svn-id: svn://svn.zoy.org/elk/trunk@130 55e467fa-43c5-0310-a8a2-de718669efc6
This commit is contained in:
sam 2003-09-09 15:18:55 +00:00
parent dcf74a9c38
commit 7a028b1c77
16 changed files with 79 additions and 70 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
configure.ac
View File

@ -52,7 +52,7 @@ AC_CHECK_FUNCS(random)
# Does the system have the index library function? If not, strchr
# will be used.
dnl FIXME
AC_CHECK_FUNCS(index)
# Does the system have the bcopy, bzero, and bcmp library functions?
# If not, memcpy/memset/memcmp will be used.
@ -105,10 +105,8 @@ AC_EGREP_HEADER(_SC_PAGESIZE, unistd.h, [
# signals (has sigblock and related functions); set reliable_signals=posix
# for POSIX-style signals (sigprocmask, sigsets); otherwise old V7/SysV
# signal semantics are assumed.
if false; then
AC_DEFINE(BSD_SIGNALS, 1, [FIXME HARD])
fi
AC_DEFINE(POSIX_SIGNALS, 1, [FIXME HARD])
AC_CHECK_HEADERS(signal.h)
AC_CHECK_FUNCS(sigprocmask sigblock)
# To support dynamic loading of object files and "dump", the system's
# a.out format has to be known. Choose one of the following:
@ -293,9 +291,8 @@ AC_CHECK_HEADERS(termio.h termios.h)
# The interpreter uses the getrlimit function to determine the maximum
# stack size of the running program. If this function is not supported,
# set max_stack_size to a (fixed) maximum stack size (in bytes).
if false; then
AC_DEFINE(MAX_STACK_SIZE, 1, [FIXME HARD])
fi
AC_CHECK_FUNCS(getrlimit)
AC_DEFINE(DEFAULT_MAX_STACK_SIZE, 1024*1024, [Define default max stack size])
# Is the mprotect system call supported? The generational garbage collector
# requires mprotect to implement incremental GC. $mprotect is ignored if
@ -339,7 +336,7 @@ fi
# function actually extend the stack? If in doubt, extract alloca.o
# from the C library and check if it contains the symbols malloc and free.
# If this is the case, forget it.
AC_DEFINE(USE_ALLOCA, 1, [FIXME HARD])
AC_CHECK_FUNCS(alloca)
# Must <alloca.h> be included to use alloca? Is "#pragma alloca" required?
AC_CHECK_HEADERS(alloca.h)
@ -391,6 +388,8 @@ AC_DEFINE(OBJ_DIR, "/usr/lib/elk", [FIXME HARD])
#define FIND_AOUT defined(USE_LD) || defined(CAN_DUMP) || defined(INIT_OBJECTS)
AC_DEFINE(FIND_AOUT, 1, [FIXME HARD])
AC_CHECK_HEADERS(pwd.h sys/resource.h)
dnl
dnl Check for available compiler features
dnl

23
include/exception.h
View File

@ -28,22 +28,24 @@
* THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.
*/
#ifdef HAVE_SIGNAL_H
# include <signal.h>
#endif
extern int Intr_Was_Ignored;
extern unsigned long Intr_Level;
#ifdef POSIX_SIGNALS
#if defined(HAVE_SIGPROCMASK)
extern sigset_t Sigset_Old, Sigset_Block;
#else
#ifdef BSD_SIGNALS
#elif defined(HAVE_SIGBLOCK)
extern int Sigmask_Old, Sigmask_Block;
#else
C_LINKAGE_BEGIN
extern void Intr_Handler P_((int));
C_LINKAGE_END
#endif
#endif
#ifdef BSD_SIGNALS
#if defined(HAVE_SIGPROCMASK) || ! defined(HAVE_SIGBLOCK)
# ifndef sigmask
# define sigmask(n) (1 << ((n)-1))
# endif
@ -57,15 +59,14 @@ extern unsigned long Intr_Level;
if (Intr_Level > 0 && --Intr_Level == 0) Force_Enable_Interrupts;\
}
#ifdef BSD_SIGNALS
#define Force_Disable_Interrupts (void)sigblock (Sigmask_Block)
#define Force_Enable_Interrupts (void)sigsetmask (Sigmask_Old)
#else
#ifdef POSIX_SIGNALS
#ifdef HAVE_SIGPROCMASK
#define Force_Disable_Interrupts (void)sigprocmask (SIG_BLOCK, &Sigset_Block,\
(sigset_t *)0)
#define Force_Enable_Interrupts (void)sigprocmask (SIG_SETMASK, &Sigset_Old,\
(sigset_t *)0)
#elif defined(HAVE_SIGBLOCK)
#define Force_Disable_Interrupts (void)sigblock (Sigmask_Block)
#define Force_Enable_Interrupts (void)sigsetmask (Sigmask_Old)
#else
#define Force_Disable_Interrupts {\
if (!Intr_Was_Ignored) (void)signal (SIGINT, SIG_IGN);\
@ -74,4 +75,4 @@ extern unsigned long Intr_Level;
if (!Intr_Was_Ignored) (void)signal (SIGINT, Intr_Handler);\
}
#endif
#endif

2
include/intern.h
View File

@ -149,7 +149,7 @@ extern SYMTAB *Open_File_And_Snarf_Symbols P_((char *));
/* stkmem.c
*/
#ifndef USE_ALLOCA
#ifndef HAVE_ALLOCA
extern Object Save_GC_Nodes P_((void));
#endif

1
include/object.h
View File

@ -29,6 +29,7 @@
* THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.
*/
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>

3
include/scheme.h
View File

@ -31,9 +31,6 @@
#ifndef SCHEME_H
#define SCHEME_H
#include <stdio.h>
#include <signal.h>
#include "site.h"
#include "funcproto.h"
#include "param.h"

4
include/stkmem.h
View File

@ -28,7 +28,7 @@
* THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.
*/
#ifdef USE_ALLOCA
#ifdef HAVE_ALLOCA
#ifdef HAVE_ALLOCA_H
# include <alloca.h>
@ -59,7 +59,7 @@ C_LINKAGE_END
(ret) = (type)alloca((size)))
#define Alloca_End
#else /* USE_ALLOCA */
#else /* HAVE_ALLOCA */
extern MEM_NODE *Mem_List;
extern char *Mem_Alloc P_((unsigned));

16
lib/unix/signal.c
View File

@ -201,11 +201,7 @@ static Object P_Pause() {
Fatal_Error("pause() returned unexpectedly");
}
#if defined(POSIX_SIGNALS) || defined(BSD_SIGNALS)
# define RELIABLE_SIGNALS
#endif
#ifdef RELIABLE_SIGNALS
#if defined(HAVE_SIGPROCMASK) || defined(HAVE_SIGBLOCK)
static Object Handlers;
@ -217,7 +213,7 @@ static Object P_Alarm(Object s) {
void General_Handler(int sig) {
Object fun, args;
#ifndef BSD_SIGNALS
#if defined(HAVE_SIGPROCMASK)
(void)signal(sig, General_Handler);
#endif
Set_Error_Tag("signal-handler");
@ -248,7 +244,7 @@ static Object Action_To_Sym(void (*act)()) {
}
void Add_To_Mask(int sig) {
#ifdef POSIX_SIGNALS
#ifdef HAVE_SIGPROCMASK
sigaddset(&Sigset_Block, sig);
#else
Sigmask_Block |= sigmask(sig);
@ -258,7 +254,7 @@ void Add_To_Mask(int sig) {
}
void Remove_From_Mask(int sig) {
#ifdef POSIX_SIGNALS
#ifdef HAVE_SIGPROCMASK
sigdelset(&Sigset_Block, sig);
#else
Sigmask_Block &= ~sigmask(sig);
@ -319,7 +315,7 @@ static Object P_Signal(int argc, Object *argv) {
Raise_System_Error("~E");
return Truep(old) ? old : Action_To_Sym(disp);
}
#endif /* RELIABLE_SIGNALS */
#endif /* defined(HAVE_SIGPROCMASK) || defined(HAVE_SIGBLOCK) */
void elk_init_unix_signal() {
Define_Symbol(&Sym_Exit, "exit");
@ -328,7 +324,7 @@ void elk_init_unix_signal() {
Def_Prim(P_Kill, "unix-kill", 2, 2, EVAL);
Def_Prim(P_List_Signals, "unix-list-signals", 0, 0, EVAL);
Def_Prim(P_Pause, "unix-pause", 0, 0, EVAL);
#ifdef RELIABLE_SIGNALS
#if defined(HAVE_SIGPROCMASK) || defined(HAVE_SIGBLOCK)
Def_Prim(P_Alarm, "unix-alarm", 1, 1, EVAL);
Handlers = Make_Vector(NSIG, False);
Global_GC_Link(Handlers);

12
src/cont.c
View File

@ -98,7 +98,7 @@ convex_longjmp (char *p, int i) {
WIND *First_Wind, *Last_Wind;
static Object Cont_Value;
#ifndef USE_ALLOCA
#ifndef HAVE_ALLOCA
static Object Cont_GCsave;
#endif
@ -161,7 +161,7 @@ void Jump_Cont (struct S_Control *cp, Object val) {
longjmp (p->j, 1);
}
#ifndef USE_ALLOCA
#ifndef HAVE_ALLOCA
Object Terminate_Cont (Object cont) {
Free_Mem_Nodes (CONTROL(cont)->memlist);
return Void;
@ -190,7 +190,7 @@ Object Internal_Call_CC (int from_dump, Object proc) {
control = gcsave = Null;
GC_Link3 (proc, control, gcsave);
#ifndef USE_ALLOCA
#ifndef HAVE_ALLOCA
gcsave = Save_GC_Nodes ();
#endif
@ -220,12 +220,12 @@ Object Internal_Call_CC (int from_dump, Object proc) {
to = cp->stack;
memcpy (to, p, cp->size);
cp->delta = to - p;
#ifndef USE_ALLOCA
#ifndef HAVE_ALLOCA
Register_Object (control, (GENERIC)0, Terminate_Cont, 0);
Save_Mem_Nodes (control);
#endif
if (setjmp (CONTROL(control)->j) != 0) {
#ifndef USE_ALLOCA
#ifndef HAVE_ALLOCA
Restore_GC_Nodes (Cont_GCsave);
#endif
if (Intr_Level == 0) {
@ -289,7 +289,7 @@ void Funcall_Control_Point (Object control, Object argl, int eval) {
cp = CONTROL(control);
Switch_Environment (cp->env);
GC_List = cp->gclist;
#ifndef USE_ALLOCA
#ifndef HAVE_ALLOCA
Restore_Mem_Nodes (control);
Cont_GCsave = CONTROL(control)->gcsave;
#endif

18
src/exception.c
View File

@ -39,13 +39,11 @@ extern void Reset () elk_attribute(__noreturn__);
int Intr_Was_Ignored;
unsigned long int Intr_Level;
#ifdef POSIX_SIGNALS
#if defined(HAVE_SIGPROCMASK)
sigset_t Sigset_Old, Sigset_Block;
#else
#ifdef BSD_SIGNALS
#elif defined(HAVE_SIGBLOCK)
int Sigmask_Old, Sigmask_Block;
#endif
#endif
static Object V_Interrupt_Handler;
@ -59,25 +57,27 @@ void Signal_Exit (int sig) {
void Init_Exception () {
Define_Variable (&V_Interrupt_Handler, "interrupt-handler", Null);
#ifdef POSIX_SIGNALS
#if defined(HAVE_SIGPROCMASK)
sigemptyset (&Sigset_Block);
sigaddset (&Sigset_Block, SIGINT);
(void)sigprocmask (0, (sigset_t *)0, &Sigset_Old);
#else
#ifdef BSD_SIGNALS
#elif defined(HAVE_SIGBLOCK)
Sigmask_Block = sigmask (SIGINT);
Sigmask_Old = sigblock (0);
#endif
#endif
#ifdef SIGHUP
(void)signal (SIGHUP, Signal_Exit);
#endif
#ifdef SIGPIPE
(void)signal (SIGPIPE, Signal_Exit);
#endif
}
/*ARGSUSED*/
void Intr_Handler (int sig) {
Object fun;
#ifndef BSD_SIGNALS
#if defined(HAVE_SIGPROCMASK) || ! defined(HAVE_SIGBLOCK)
(void)signal (SIGINT, Intr_Handler);
#endif
Set_Error_Tag ("interrupt-handler");

2
src/heap-gen.c
View File

@ -1183,7 +1183,7 @@ static void ScanPage (Object *currentp, Object *nextcp) {
case T_Control_Point:
(CONTROL(obj)->delta) += CONTROL(obj)->reloc;
#ifdef USE_ALLOCA
#ifdef HAVE_ALLOCA
Visit_GC_List (CONTROL(obj)->gclist, CONTROL(obj)->delta);
#else
Visit (&CONTROL(obj)->gcsave);

2
src/heap-sc.c
View File

@ -243,7 +243,7 @@ again:
case T_Control_Point:
Recursive_Visit (&CONTROL(*p)->memsave);
CONTROL(*p)->delta += reloc;
#ifdef USE_ALLOCA
#ifdef HAVE_ALLOCA
Visit_GC_List (CONTROL(*p)->gclist, CONTROL(*p)->delta);
#else
Recursive_Visit (&CONTROL(*p)->gcsave);

16
src/io.c
View File

@ -32,7 +32,9 @@
#include <errno.h>
#include <stdio.h>
#include <pwd.h>
#ifdef HAVE_PWD_H
# include <pwd.h>
#endif
#include <string.h>
#include <sys/types.h>
#include <sys/param.h>
@ -147,13 +149,16 @@ Object Get_File_Name (Object name) {
char *Internal_Tilde_Expand (register char *s, register char **dirp) {
register char *p;
#ifdef HAVE_PWD_H
struct passwd *pw, *getpwnam();
#endif
if (*s++ != '~')
return 0;
for (p = s; *p && *p != '/'; p++)
;
if (*p == '/') *p++ = 0;
#ifdef HAVE_PWD_H
if (*s == '\0') {
if ((*dirp = getenv ("HOME")) == 0)
*dirp = "";
@ -162,6 +167,9 @@ char *Internal_Tilde_Expand (register char *s, register char **dirp) {
Primitive_Error ("unknown user: ~a", Make_String (s, strlen (s)));
*dirp = pw->pw_dir;
}
#else
*dirp = "";
#endif
return p;
}
@ -175,7 +183,8 @@ Object General_File_Operation (Object s, register int op) {
switch (op) {
case 0: {
char *p, *dir;
if ((p = Internal_Tilde_Expand (r, &dir)) == 0) {
p = Internal_Tilde_Expand (r, &dir);
if (p == 0) {
Alloca_End;
return s;
}
@ -224,7 +233,8 @@ Object Open_File (char *name, int flags, int err) {
struct stat st;
Alloca_Begin;
if ((p = Internal_Tilde_Expand (name, &dir))) {
p = Internal_Tilde_Expand (name, &dir);
if (p) {
Alloca (name, char*, strlen (dir) + 1 + strlen (p) + 1);
sprintf (name, "%s/%s", dir, p);
}

24
src/libelk.c
View File

@ -38,17 +38,19 @@
#include <sys/types.h>
#include <sys/stat.h>
#ifndef MAX_STACK_SIZE
# include <sys/time.h>
# include <sys/resource.h>
#ifdef HAVE_GETRLIMIT
# include <sys/time.h>
# ifdef HAVE_SYS_RESOURCES_H
# include <sys/resource.h>
# endif
#endif
#ifdef FIND_AOUT
# ifdef HAVE_UNISTD_H
# include <unistd.h>
# else
# include <sys/file.h>
# endif
# ifdef HAVE_UNISTD_H
# include <unistd.h>
# else
# include <sys/file.h>
# endif
#endif
#include "kernel.h"
@ -383,9 +385,7 @@ void Init_Everything () {
}
void Get_Stack_Limit () {
#ifdef MAX_STACK_SIZE
Max_Stack = MAX_STACK_SIZE;
#else
#ifdef HAVE_GETRLIMIT
struct rlimit rl;
if (getrlimit (RLIMIT_STACK, &rl) == -1) {
@ -393,6 +393,8 @@ void Get_Stack_Limit () {
exit (1);
}
Max_Stack = rl.rlim_cur;
#else
Max_Stack = DEFAULT_MAX_STACK_SIZE;
#endif
Max_Stack -= STACK_MARGIN;
}

2
src/proc.c
View File

@ -33,7 +33,7 @@
#include "kernel.h"
#ifdef USE_ALLOCA
#ifdef HAVE_ALLOCA
# define MAX_ARGS_ON_STACK 4
#else
# define MAX_ARGS_ON_STACK 8

5
src/read.c
View File

@ -52,7 +52,6 @@
extern void Flush_Output (Object);
extern char *index();
extern double atof();
int Skip_Comment (Object);
@ -659,7 +658,11 @@ Object Parse_Number (Object port, char const *buf, int radix) {
return Null;
if (p[1] == '+' || p[1] == '-')
p++;
#ifdef HAVE_INDEX
} else if (radix == 16 && !index ("0123456789abcdefABCDEF", c)) {
#else
} else if (radix == 16 && !strchr ("0123456789abcdefABCDEF", c)) {
#endif
return Null;
} else if (radix < 16 && (c < '0' || c > '0' + radix-1)) {
return Null;

2
src/stkmem.c
View File

@ -32,7 +32,7 @@
#include "kernel.h"
#ifndef USE_ALLOCA
#ifndef HAVE_ALLOCA
extern char *malloc();