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Commit more readable version of obp_fortheval_v2 as posted to the mailing list, plus increase the default client image stack

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size on SPARC32 to help Solaris 8 boot.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@siriusit.co.uk>


git-svn-id: svn://coreboot.org/openbios/trunk/openbios-devel@919 f158a5a8-5612-0410-a976-696ce0be7e32
This commit is contained in:
Mark Cave-Ayland
2010-10-24 20:20:14 +00:00
committed by Mark Cave-Ayland
parent d92b811c6e
commit d0b1458780
2 changed files with 17 additions and 28 deletions
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2
arch/sparc32/context.c
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@@ -11,7 +11,7 @@
#include "openbios.h" #include "openbios.h"
#define MAIN_STACK_SIZE 16384 #define MAIN_STACK_SIZE 16384
#define IMAGE_STACK_SIZE 4096*2 #define IMAGE_STACK_SIZE 4096*4
#define debug printk #define debug printk

35
arch/sparc32/romvec.c
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@@ -424,41 +424,30 @@ int obp_cpuresume(__attribute__((unused)) unsigned int whichcpu)
void obp_fortheval_v2(char *str, int arg0, int arg1, int arg2, int arg3, int arg4) void obp_fortheval_v2(char *str, int arg0, int arg1, int arg2, int arg3, int arg4)
{ {
int pusharg = 0; int dstacktmp = 0;
// It seems Solaris passes up to 5 arguments which should be pushed onto the Forth // It seems Solaris passes up to 5 arguments which should be pushed onto the Forth
// stack for execution. However the API doesn't provide for a way to pass the number // stack for execution. However the API doesn't provide for a way to specify the number
// of arguments actually passed. Hence we start at arg4 and then starting from the // of arguments actually being passed. Hence we preserve the state of the Forth stack
// first non-zero argument, we push all subsequent arguments onto the stack down to // before, push all the arguments, execute the Forth, then restore the stack to its
// arg0. // previous state. This enables us to have a variable number of arguments and still
// preserve stack state between subsequent calls.
// Preserve stack state
dstacktmp = dstackcnt;
if (arg4) {
PUSH(arg4); PUSH(arg4);
pusharg = 1;
}
if (arg3 || pusharg == 1 ) {
PUSH(arg3); PUSH(arg3);
pusharg = 1;
}
if (arg2 || pusharg == 1) {
PUSH(arg2); PUSH(arg2);
pusharg = 1;
}
if (arg1 || pusharg == 1 ) {
PUSH(arg1); PUSH(arg1);
pusharg = 1;
}
if (arg0 || pusharg == 1) {
PUSH(arg0); PUSH(arg0);
}
DPRINTF("obp_fortheval_v2(%s)\n", str); DPRINTF("obp_fortheval_v2(%s)\n", str);
push_str(str); push_str(str);
fword("eval"); fword("eval");
// Restore stack state
dstackcnt = dstacktmp;
} }
void * void *