qf/quakeforge
0
0
Fork 0
mirror of https://git.code.sf.net/p/quake/quakeforge synced 2025-02-16 17:01:53 +00:00
Code Issues Projects Releases Packages Wiki Activity

[qfprogs] Create a stack for disassembly of locals

Browse source 
This prevents local variables getting intertwined with globals when
disassembling.
This commit is contained in:
Bill Currie 2023-09-12 22:21:55 +09:00
parent d03637ede8
commit 3f93f6b226
2 changed files with 25 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
tools/qfcc/source/disassemble.c
View file

@ -79,7 +79,13 @@ disassemble_progs (progs_t *pr)
Sys_Printf ("%s:\n", PR_GetString (pr, desc->name));
pr->pr_xfunction = &func;
if (pr->pr_depth) {
//FIXME assumes 1 is frame
//FIXME update when making locals have -ve addresses
pr->pr_bases[1] = pr->pr_stack[0].stack_ptr - func.params_start;
}
}
PR_PrintStatement (pr, &pr->pr_statements[i], 2 | (verbosity > 1));
PR_PrintStatement (pr, &pr->pr_statements[i], 2 | (verbosity > 0));
}
}

19
tools/qfcc/source/qfprogs.c
View file

@ -287,6 +287,7 @@ load_progs (const char *name)
pr.progs_name = name;
pr.max_edicts = 1;
pr.zone_size = 0;
pr.stack_size = 64*1024;
PR_LoadProgsFile (&pr, file, size);
Qclose (file);
@ -297,10 +298,26 @@ load_progs (const char *name)
PR_LoadStrings (&pr);
PR_LoadDebug (&pr);
}
pr_uint_t max_locals = 0;
for (i = 0; i < pr.progs->functions.count; i++) {
// don't bother with builtins
if (pr.pr_functions[i].first_statement > 0)
if (pr.pr_functions[i].first_statement > 0) {
Hash_AddElement (func_tab, &pr.pr_functions[i]);
if (pr.pr_functions[i].locals > max_locals) {
max_locals = pr.pr_functions[i].locals;
}
}
}
if (pr.stack && pr.globals.stack) {
printf ("stack: %x %x %x %d\n", (pr_uint_t)(pr.stack - pr.pr_globals),
*pr.globals.stack, pr.stack_bottom, pr.stack_size);
*pr.globals.stack -= max_locals;
pr.pr_depth = 1;
pr.pr_stack[0] = (prstack_t) {
.stack_ptr = *pr.globals.stack,
.return_ptr = pr.pr_return_buffer,
};
*pr.globals.stack -= max_locals;
}
return 1;
}