diff options
Diffstat (limited to 'src/js/primitives/call.js')
| -rw-r--r-- | src/js/primitives/call.js | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/src/js/primitives/call.js b/src/js/primitives/call.js index 49a9e79..92d7d09 100644 --- a/src/js/primitives/call.js +++ b/src/js/primitives/call.js @@ -219,6 +219,41 @@ function callnarg() { } } -function callsnarg() { +/* + * call with symbol + */ +function scall() { + /* + * this calls dlsym with the first arg, then uses the address it returns + * to call. so you can call with a symbol name instead of an address + */ + + if (arguments.length < 1) { + return printf("warning: scall called without args. arguments.length=%d\n", arguments.length); + } + + var sym = arguments[0]; + + if (sym in sym_cache) { + var addy = sym_cache[sym]; + } else { + var dlsym_addy = read_u32(reserve_addr + 24 + slid); + var shc_slide = read_u32(reserve_addr + 20 + slid); + var addy = call4arg(dlsym_addy + shc_slide, 0xfffffffe, sptr(sym), 0, 0); + sym_cache[sym] = addy; + } + + var args_to_pass = new Array(); + + args_to_pass.push(addy); + + for (var i = 1; i < arguments.length; i++) { + if (arguments[i].constructor === String) { + args_to_pass.push(sptr(arguments[i])); + } else { + args_to_pass.push(arguments[i]); + } + } + return callnarg.apply(this, args_to_pass); }
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