Commit e38fdaa5 authored by simonmar's avatar simonmar

[project @ 2001-10-01 11:36:28 by simonmar]

Allow default RTS options to be specified by linking in an object file
which defines the symbol `ghc_rts_opts' to point to a string of RTS
options.

This is preferred to using defaultsHook(), if possible.  Perhaps we
could remove defaultsHook().

(won't work with DLL's; if we ever ressurrect them we'll
have to deal with this somehow).
parent 1b9f74f6
/* -----------------------------------------------------------------------------
* $Id: Hooks.h,v 1.5 2001/04/01 05:56:29 chak Exp $
* $Id: Hooks.h,v 1.6 2001/10/01 11:36:28 simonmar Exp $
*
* (c) The GHC Team, 1998-1999
*
......@@ -7,6 +7,8 @@
*
* ---------------------------------------------------------------------------*/
extern char *ghc_rts_opts;
extern void OnExitHook (void);
extern void ErrorHdrHook (long fd);
extern int NoRunnableThreadsHook (void);
......
/* -----------------------------------------------------------------------------
* $Id: RtsFlags.c,v 1.50 2001/08/31 11:42:44 sewardj Exp $
* $Id: RtsFlags.c,v 1.51 2001/10/01 11:36:28 simonmar Exp $
*
* (c) The AQUA Project, Glasgow University, 1994-1997
* (c) The GHC Team, 1998-1999
......@@ -485,6 +485,32 @@ strequal(const char *a, const char * b)
return(strcmp(a, b) == 0);
}
static void
splitRtsFlags(char *s, int *rts_argc, char *rts_argv[])
{
char *c1, *c2;
c1 = s;
do {
while (isspace(*c1)) { c1++; };
c2 = c1;
while (!isspace(*c2) && *c2 != '\0') { c2++; };
if (c1 == c2) { break; }
if (*rts_argc < MAX_RTS_ARGS-1) {
s = malloc(c2-c1+1);
strncpy(s, c1, c2-c1);
s[c2-c1] = '\0';
rts_argv[(*rts_argc)++] = s;
} else {
barf("too many RTS arguments (max %d)", MAX_RTS_ARGS-1);
}
c1 = c2;
} while (*c1 != '\0');
}
void
setupRtsFlags(int *argc, char *argv[], int *rts_argc, char *rts_argv[])
{
......@@ -504,32 +530,22 @@ setupRtsFlags(int *argc, char *argv[], int *rts_argc, char *rts_argv[])
*argc = 1;
*rts_argc = 0;
// process arguments from the ghc_rts_opts global variable first.
// (arguments from the GHCRTS environment variable and the command
// line override these).
{
if (ghc_rts_opts != NULL) {
splitRtsFlags(ghc_rts_opts, rts_argc, rts_argv);
}
}
// process arguments from the GHCRTS environment variable first
// (arguments from the command line override these).
{
char *ghc_rts = getenv("GHCRTS");
char *c1, *c2, *s;
if (ghc_rts != NULL) {
c1 = ghc_rts;
do {
while (isspace(*c1)) { c1++; };
c2 = c1;
while (!isspace(*c2) && *c2 != '\0') { c2++; };
if (c1 == c2) { break; }
if (*rts_argc < MAX_RTS_ARGS-1) {
s = malloc(c2-c1+1);
strncpy(s, c1, c2-c1);
s[c2-c1] = '\0';
rts_argv[(*rts_argc)++] = s;
} else {
barf("too many RTS arguments (max %d)", MAX_RTS_ARGS-1);
}
c1 = c2;
} while (*c1 != '\0');
splitRtsFlags(ghc_rts, rts_argc, rts_argv);
}
}
......
/* -----------------------------------------------------------------------------
* $Id: RtsOpts.c,v 1.1 2001/10/01 11:36:29 simonmar Exp $
*
* Default RTS options.
*
* ---------------------------------------------------------------------------*/
#include "Rts.h"
// Default RTS options can be given by providing an alternate
// definition for this variable, pointing to a string of RTS options.
char *ghc_rts_opts = NULL;
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