diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/js/lib/myutils.js | 35 | ||||
| -rw-r--r-- | src/js/main.js | 13 | ||||
| -rw-r--r-- | src/js/primitives/call.js | 4 |
3 files changed, 42 insertions, 10 deletions
diff --git a/src/js/lib/myutils.js b/src/js/lib/myutils.js index 08ba89e..0106402 100644 --- a/src/js/lib/myutils.js +++ b/src/js/lib/myutils.js @@ -25,4 +25,39 @@ function printf() { } return calls4arg.apply(this, args_to_pass); +} + +function syslog() { + if (arguments.length > 4) { + return printf("warning: tried to printf with %d args, max %d.\n", arguments.length, 4); + } + + var args_to_pass = new Array(); + + sym = "syslog"; + + 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; + } + + args_to_pass.push(addy); + + for (var i = 0; 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); +} + +function sleep(t) { + return calls4arg("sleep", t, 0, 0, 0); }
\ No newline at end of file diff --git a/src/js/main.js b/src/js/main.js index 410b588..4c5ca98 100644 --- a/src/js/main.js +++ b/src/js/main.js @@ -8,8 +8,9 @@ var MAX_SLIDE = 0x3; var MIN_SLIDE = 0x1; -var ARM_THREAD_STATE = 0x1; var ARM_THREAD_STATE_COUNT = 0x11; +var ARM_THREAD_STATE = 0x1; +var LOG_SYSLOG = 0x28; try { puts("we out here in jsc"); @@ -45,16 +46,10 @@ function main() { printf("*(uint16_t*)base = 0x%x\n", read_u16(base)); printf("*(uint32_t*)base = 0x%x\n", read_u32(base)); - scall("printf", "Hello world! %x %x %x %x %x %x %x %x %x %x %x %x %x\n", 0x420, 0x69, 0x1337, 0x13371337, 0xb1a7e17, 0x41424344); - scall("printf", "Hello world! %x %x %x %x %x %x %x %x %x %x %x %x %x\n", 0x420, 0x69, 0x1337, 0x13371337, 0xb1a7e17, 0x41424344); - scall("printf", "Hello world! %x %x %x %x %x %x %x %x %x %x %x %x %x\n", 0x420, 0x69, 0x1337, 0x13371337, 0xb1a7e17, 0x41424344); - scall("printf", "Hello world! %x %x %x %x %x %x %x %x %x %x %x %x %x\n", 0x420, 0x69, 0x1337, 0x13371337, 0xb1a7e17, 0x41424344); - scall("printf", "Hello world! %x %x %x %x %x %x %x %x %x %x %x %x %x\n", 0x420, 0x69, 0x1337, 0x13371337, 0xb1a7e17, 0x41424344); - var i = 0; while (true) { - calls4arg("syslog", 0x28, sptr("get rekt from jsc %d (slide=%x)\n"), i, slide); - calls4arg("sleep", 1, 0, 0, 0); + syslog(LOG_SYSLOG, "get rekt from jsc %d (slide=%x)\n", i, slide); + sleep(1); i++; } diff --git a/src/js/primitives/call.js b/src/js/primitives/call.js index 92d7d09..48fe8ae 100644 --- a/src/js/primitives/call.js +++ b/src/js/primitives/call.js @@ -196,6 +196,7 @@ function callnarg() { * probably un-necessary now, keeping in just in case for now */ calls4arg("thread_resume", read_u32(th), 0, 0, 0); + calls4arg("usleep", 10000, 0, 0, 0); /* * spin wait for return @@ -215,7 +216,8 @@ function callnarg() { calls4arg("thread_suspend", read_u32(th), 0, 0, 0); return read_u32(thread_state); } - calls4arg("usleep", 1000, 0, 0, 0); + + calls4arg("usleep", 10000, 0, 0, 0); } } |