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Patches to support generating an executing environment.

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Patches from Tony Thompson at ARM:  athompso@arm.com
This commit is contained in:
Nick Clifton 1997-10-30 21:52:16 +00:00
parent d048b52dbb
commit d3e9ca1a88
1 changed files with 59 additions and 4 deletions
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63
sim/arm/wrapper.c
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@ -181,10 +181,65 @@ sim_create_inferior (sd, abfd, argv, env)
char **argv;
char **env;
{
if (abfd != NULL)
ARMul_SetPC (state, bfd_get_start_address (abfd));
else
ARMul_SetPC (state, 0); /* ??? */
int argvlen=0;
char **arg;
#if 1 /* JGS */
/* We explicitly select a processor capable of supporting the ARM
32bit mode, and then we force the simulated CPU into the 32bit
User mode: */
ARMul_SelectProcessor(state, ARM600);
ARMul_SetCPSR(state, USER32MODE);
#endif
if (argv != NULL)
{
/*
** Set up the command line (by laboriously stringing together the
** environment carefully picked apart by our caller...)
*/
/* Free any old stuff */
if (state->CommandLine != NULL)
{
free(state->CommandLine);
state->CommandLine = NULL;
}
/* See how much we need */
for (arg = argv; *arg != NULL; arg++)
argvlen += strlen(*arg)+1;
/* allocate it... */
state->CommandLine = malloc(argvlen+1);
if (state->CommandLine != NULL)
{
arg = argv;
state->CommandLine[0]='\0';
for (arg = argv; *arg != NULL; arg++)
{
strcat(state->CommandLine, *arg);
strcat(state->CommandLine, " ");
}
}
}
if (env != NULL)
{
/* Now see if there's a MEMSIZE spec in the environment */
while (*env)
{
if (strncmp(*env, "MEMSIZE=", sizeof("MEMSIZE=")-1)==0)
{
unsigned long top_of_memory;
char *end_of_num;
/* Set up memory limit */
state->MemSize = strtoul(*env + sizeof("MEMSIZE=")-1, &end_of_num, 0);
}
env++;
}
}
return SIM_RC_OK;
}