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Refactor Rust drivers for strict idiomatic documentation and 8-line enforcement
This commit is contained in:
Kevin Thomas
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||||
<text x="60" y="230" class="cyn">int counter = 42;</text>
|
||||
<text x="60" y="260" class="dim">Initial value stored in flash, copied to SRAM by data_cpy</text>
|
||||
|
||||
<!-- .bss Section -->
|
||||
<rect x="40" y="295" width="1120" height="170" rx="8" class="pnl"/>
|
||||
<rect x="60" y="315" width="180" height="40" rx="6" fill="#1a0a0a" stroke="#ff0040" stroke-width="2"/>
|
||||
<text x="150" y="342" text-anchor="middle" class="red">.bss</text>
|
||||
<text x="260" y="342" class="txt">RAM — zeroed at startup</text>
|
||||
<text x="60" y="385" class="dim">Contains: Uninitialized global/static variables</text>
|
||||
<text x="60" y="415" class="cyn">int counter;</text>
|
||||
<text x="60" y="445" class="dim">NOT stored in binary (saves space!) — memset to 0 at boot</text>
|
||||
|
||||
<!-- .rodata Section -->
|
||||
<rect x="40" y="480" width="1120" height="170" rx="8" class="pnl"/>
|
||||
<rect x="60" y="500" width="180" height="40" rx="6" fill="#0a0a1f" stroke="#00d4ff" stroke-width="2"/>
|
||||
<text x="150" y="527" text-anchor="middle" class="cyn">.rodata</text>
|
||||
<text x="260" y="527" class="txt">Flash — read only</text>
|
||||
<text x="60" y="570" class="dim">Contains: Constants and string literals</text>
|
||||
<text x="60" y="600" class="amb">const int MAX = 100;</text>
|
||||
<text x="60" y="630" class="dim">Lives in flash permanently — cannot be modified at runtime</text>
|
||||
|
||||
<!-- Summary Table -->
|
||||
<rect x="40" y="665" width="1120" height="115" rx="8" class="pnl"/>
|
||||
<text x="80" y="700" class="grn">.data</text>
|
||||
<text x="260" y="700" class="txt">RAM</text>
|
||||
<text x="420" y="700" class="dim">Writable</text>
|
||||
<text x="600" y="700" class="dim">Initialized globals</text>
|
||||
|
||||
<text x="80" y="730" class="red">.bss</text>
|
||||
<text x="260" y="730" class="txt">RAM</text>
|
||||
<text x="420" y="730" class="dim">Writable</text>
|
||||
<text x="600" y="730" class="dim">Uninitialized globals (zeroed)</text>
|
||||
|
||||
<text x="80" y="760" class="cyn">.rodata</text>
|
||||
<text x="260" y="760" class="txt">Flash</text>
|
||||
<text x="420" y="760" class="dim">Read-only</text>
|
||||
<text x="600" y="760" class="dim">Constants & strings</text>
|
||||
</svg>
|
||||
@@ -0,0 +1,79 @@
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 800">
|
||||
<style>
|
||||
.bg{fill:#0a0a0f}.pnl{fill:#12121a;stroke:#1a1a2e}.hdr{fill:#12121a}
|
||||
.title{font:bold 42px 'Courier New',monospace;fill:#00ff41}
|
||||
.sub{font:bold 28px 'Courier New',monospace;fill:#00d4ff}
|
||||
.txt{font:24px 'Courier New',monospace;fill:#c0c0c0}
|
||||
.dim{font:20px 'Courier New',monospace;fill:#888}
|
||||
.grn{font:bold 24px 'Courier New',monospace;fill:#00ff41}
|
||||
.red{font:bold 24px 'Courier New',monospace;fill:#ff0040}
|
||||
.cyn{font:bold 24px 'Courier New',monospace;fill:#00d4ff}
|
||||
.amb{font:bold 24px 'Courier New',monospace;fill:#ffaa00}
|
||||
.badge{stroke:#00ff41;rx:14}
|
||||
</style>
|
||||
<rect class="bg" width="1200" height="800"/>
|
||||
|
||||
<!-- Title -->
|
||||
<text x="600" y="52" text-anchor="middle" class="title">GPIO Basics</text>
|
||||
<text x="600" y="88" text-anchor="middle" class="dim">General Purpose Input/Output on RP2350</text>
|
||||
|
||||
<!-- Left Panel: Pico 2 Pin Diagram -->
|
||||
<rect x="40" y="110" width="520" height="300" rx="8" class="pnl"/>
|
||||
<text x="300" y="148" text-anchor="middle" class="sub">Pico 2 GPIO Pins</text>
|
||||
|
||||
<text x="60" y="195" class="grn">GPIO 16</text>
|
||||
<line x1="230" y1="189" x2="350" y2="189" stroke="#00ff41" stroke-width="2"/>
|
||||
<text x="370" y="195" class="red">Red LED</text>
|
||||
|
||||
<text x="60" y="240" class="grn">GPIO 17</text>
|
||||
<line x1="230" y1="234" x2="350" y2="234" stroke="#00ff41" stroke-width="2"/>
|
||||
<text x="370" y="240" class="cyn">Green LED</text>
|
||||
|
||||
<text x="60" y="285" class="grn">GPIO 18</text>
|
||||
<line x1="230" y1="279" x2="350" y2="279" stroke="#00ff41" stroke-width="2"/>
|
||||
<text x="370" y="285" class="amb">Blue LED</text>
|
||||
|
||||
<text x="60" y="330" class="grn">GPIO 25</text>
|
||||
<line x1="230" y1="324" x2="350" y2="324" stroke="#00ff41" stroke-width="2"/>
|
||||
<text x="370" y="330" class="txt">Onboard LED</text>
|
||||
|
||||
<text x="60" y="385" class="dim">Software-controlled switches</text>
|
||||
|
||||
<!-- Right Panel: SDK Functions -->
|
||||
<rect x="580" y="110" width="580" height="300" rx="8" class="pnl"/>
|
||||
<text x="870" y="148" text-anchor="middle" class="sub">Pico SDK Functions</text>
|
||||
|
||||
<rect x="600" y="170" width="540" height="45" rx="4" fill="#0a0a0f" stroke="#1a1a2e"/>
|
||||
<text x="615" y="200" class="cyn">gpio_init(pin)</text>
|
||||
<text x="900" y="200" class="dim">Init pin</text>
|
||||
|
||||
<rect x="600" y="225" width="540" height="45" rx="4" fill="#0a0a0f" stroke="#1a1a2e"/>
|
||||
<text x="615" y="255" class="cyn">gpio_set_dir(pin,d)</text>
|
||||
<text x="900" y="255" class="dim">I/O dir</text>
|
||||
|
||||
<rect x="600" y="280" width="540" height="45" rx="4" fill="#0a0a0f" stroke="#1a1a2e"/>
|
||||
<text x="615" y="310" class="cyn">gpio_put(pin,val)</text>
|
||||
<text x="900" y="310" class="dim">Set H/L</text>
|
||||
|
||||
<rect x="600" y="335" width="540" height="45" rx="4" fill="#0a0a0f" stroke="#1a1a2e"/>
|
||||
<text x="615" y="365" class="cyn">sleep_ms(ms)</text>
|
||||
<text x="900" y="365" class="dim">Delay</text>
|
||||
|
||||
<!-- Bottom: LED Blink Code -->
|
||||
<rect x="40" y="430" width="1120" height="350" rx="8" class="pnl"/>
|
||||
<text x="60" y="468" class="sub">Basic LED Blink Code</text>
|
||||
|
||||
<rect x="60" y="485" width="1080" height="280" rx="6" fill="#0a0a0f" stroke="#00ff41" stroke-width="1"/>
|
||||
<text x="80" y="515" class="cyn">#define LED_PIN 16</text>
|
||||
<text x="80" y="540" class="txt">int main(void) {</text>
|
||||
<text x="100" y="565" class="txt">gpio_init(LED_PIN);</text>
|
||||
<text x="100" y="590" class="txt">gpio_set_dir(LED_PIN, GPIO_OUT);</text>
|
||||
<text x="100" y="615" class="txt">while (true) {</text>
|
||||
<text x="120" y="640" class="grn">gpio_put(LED_PIN, 1);</text>
|
||||
<text x="500" y="640" class="dim">// ON</text>
|
||||
<text x="120" y="665" class="txt">sleep_ms(500);</text>
|
||||
<text x="120" y="690" class="red">gpio_put(LED_PIN, 0);</text>
|
||||
<text x="500" y="690" class="dim">// OFF</text>
|
||||
<text x="120" y="715" class="txt">sleep_ms(500);</text>
|
||||
<text x="100" y="740" class="txt">}}</text>
|
||||
</svg>
|
||||
|
After Width: | Height: | Size: 3.7 KiB |
@@ -0,0 +1,79 @@
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 800">
|
||||
<style>
|
||||
.bg{fill:#0a0a0f}.pnl{fill:#12121a;stroke:#1a1a2e}.hdr{fill:#12121a}
|
||||
.title{font:bold 42px 'Courier New',monospace;fill:#00ff41}
|
||||
.sub{font:bold 28px 'Courier New',monospace;fill:#00d4ff}
|
||||
.txt{font:24px 'Courier New',monospace;fill:#c0c0c0}
|
||||
.dim{font:20px 'Courier New',monospace;fill:#888}
|
||||
.grn{font:bold 24px 'Courier New',monospace;fill:#00ff41}
|
||||
.red{font:bold 24px 'Courier New',monospace;fill:#ff0040}
|
||||
.cyn{font:bold 24px 'Courier New',monospace;fill:#00d4ff}
|
||||
.amb{font:bold 24px 'Courier New',monospace;fill:#ffaa00}
|
||||
.badge{stroke:#00ff41;rx:14}
|
||||
</style>
|
||||
<rect class="bg" width="1200" height="800"/>
|
||||
|
||||
<!-- Title -->
|
||||
<text x="600" y="52" text-anchor="middle" class="title">Ghidra Binary Analysis</text>
|
||||
<text x="600" y="88" text-anchor="middle" class="dim">Analyzing a Raw .bin Without Symbols</text>
|
||||
|
||||
<!-- Step 1: Import -->
|
||||
<rect x="40" y="110" width="360" height="280" rx="8" class="pnl"/>
|
||||
<text x="220" y="148" text-anchor="middle" class="sub">1. Import</text>
|
||||
<rect x="60" y="165" width="320" height="40" rx="4" fill="#0a0a0f" stroke="#00ff41" stroke-width="1"/>
|
||||
<text x="80" y="192" class="grn">File -> Import</text>
|
||||
<text x="60" y="232" class="txt">Language:</text>
|
||||
<text x="60" y="262" class="cyn">ARM Cortex 32 LE</text>
|
||||
<text x="60" y="302" class="txt">Block:</text>
|
||||
<text x="200" y="302" class="grn">.text</text>
|
||||
<text x="60" y="340" class="txt">Base:</text>
|
||||
<text x="200" y="340" class="amb">10000000</text>
|
||||
<text x="60" y="370" class="dim">XIP address for RP2350</text>
|
||||
|
||||
<!-- Step 2: Analyze -->
|
||||
<rect x="420" y="110" width="360" height="280" rx="8" class="pnl"/>
|
||||
<text x="600" y="148" text-anchor="middle" class="sub">2. Analyze</text>
|
||||
<rect x="440" y="165" width="320" height="40" rx="4" fill="#0a0a0f" stroke="#00ff41" stroke-width="1"/>
|
||||
<text x="460" y="192" class="grn">Auto-Analyze: Yes</text>
|
||||
<text x="440" y="235" class="txt">Ghidra finds:</text>
|
||||
<text x="440" y="270" class="dim">FUN_1000019a</text>
|
||||
<text x="440" y="300" class="dim">FUN_10000210</text>
|
||||
<text x="440" y="330" class="dim">FUN_10000234</text>
|
||||
<text x="440" y="365" class="dim">Auto-generated names</text>
|
||||
|
||||
<!-- Step 3: Resolve -->
|
||||
<rect x="800" y="110" width="360" height="280" rx="8" class="pnl"/>
|
||||
<text x="980" y="148" text-anchor="middle" class="sub">3. Resolve</text>
|
||||
<rect x="820" y="165" width="320" height="40" rx="4" fill="#0a0a0f" stroke="#00ff41" stroke-width="1"/>
|
||||
<text x="840" y="192" class="grn">Edit Function Sig</text>
|
||||
<text x="820" y="235" class="txt">Rename to:</text>
|
||||
<text x="820" y="270" class="cyn">data_cpy</text>
|
||||
<text x="820" y="300" class="cyn">frame_dummy</text>
|
||||
<text x="820" y="330" class="grn">main</text>
|
||||
<text x="820" y="365" class="dim">Fix signatures</text>
|
||||
|
||||
<!-- Bottom: Decompiled Output -->
|
||||
<rect x="40" y="410" width="1120" height="370" rx="8" class="pnl"/>
|
||||
<text x="60" y="448" class="sub">Decompiled main() in Ghidra</text>
|
||||
|
||||
<rect x="60" y="465" width="520" height="295" rx="6" fill="#0a0a0f" stroke="#ff0040" stroke-width="1"/>
|
||||
<text x="80" y="500" class="red">Before Resolving:</text>
|
||||
<text x="80" y="535" class="txt">void FUN_10000234(void){</text>
|
||||
<text x="100" y="570" class="dim">FUN_10002f54();</text>
|
||||
<text x="100" y="605" class="txt">do {</text>
|
||||
<text x="120" y="640" class="dim">FUN_100030e4(</text>
|
||||
<text x="140" y="675" class="dim">DAT_10000244,0x2b);</text>
|
||||
<text x="100" y="710" class="txt">} while(true);</text>
|
||||
<text x="80" y="740" class="txt">}</text>
|
||||
|
||||
<rect x="600" y="465" width="540" height="295" rx="6" fill="#0a0a0f" stroke="#00ff41" stroke-width="1"/>
|
||||
<text x="620" y="500" class="grn">After Resolving:</text>
|
||||
<text x="620" y="535" class="txt">int main(void) {</text>
|
||||
<text x="640" y="570" class="cyn">stdio_init_all();</text>
|
||||
<text x="640" y="605" class="txt">do {</text>
|
||||
<text x="660" y="640" class="cyn">printf(</text>
|
||||
<text x="680" y="675" class="amb">"age: %d\r\n"</text>
|
||||
<text x="680" y="700" class="grn">, 0x2b);</text>
|
||||
<text x="640" y="725" class="txt">} while(true);</text>
|
||||
<text x="620" y="750" class="txt">}</text>
|
||||
</svg>
|
||||
@@ -0,0 +1,77 @@
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 800">
|
||||
<style>
|
||||
.bg{fill:#0a0a0f}.pnl{fill:#12121a;stroke:#1a1a2e}.hdr{fill:#12121a}
|
||||
.title{font:bold 42px 'Courier New',monospace;fill:#00ff41}
|
||||
.sub{font:bold 28px 'Courier New',monospace;fill:#00d4ff}
|
||||
.txt{font:24px 'Courier New',monospace;fill:#c0c0c0}
|
||||
.dim{font:20px 'Courier New',monospace;fill:#888}
|
||||
.grn{font:bold 24px 'Courier New',monospace;fill:#00ff41}
|
||||
.red{font:bold 24px 'Courier New',monospace;fill:#ff0040}
|
||||
.cyn{font:bold 24px 'Courier New',monospace;fill:#00d4ff}
|
||||
.amb{font:bold 24px 'Courier New',monospace;fill:#ffaa00}
|
||||
.badge{stroke:#00ff41;rx:14}
|
||||
</style>
|
||||
<rect class="bg" width="1200" height="800"/>
|
||||
|
||||
<!-- Title -->
|
||||
<text x="600" y="52" text-anchor="middle" class="title">Compiler Optimization</text>
|
||||
<text x="600" y="88" text-anchor="middle" class="dim">Why Your Variable Disappeared</text>
|
||||
|
||||
<!-- Source Code Panel -->
|
||||
<rect x="40" y="110" width="540" height="280" rx="8" class="pnl"/>
|
||||
<text x="310" y="148" text-anchor="middle" class="sub">Source Code</text>
|
||||
|
||||
<rect x="60" y="165" width="500" height="205" rx="6" fill="#0a0a0f" stroke="#00d4ff" stroke-width="1"/>
|
||||
<text x="80" y="195" class="txt">int main(void) {</text>
|
||||
<text x="100" y="225" class="amb">uint8_t age = 42;</text>
|
||||
<text x="100" y="255" class="red">age = 43;</text>
|
||||
<text x="100" y="285" class="txt">stdio_init_all();</text>
|
||||
<text x="100" y="315" class="txt">while (true)</text>
|
||||
<text x="120" y="345" class="txt">printf("age: %d", age);</text>
|
||||
|
||||
<!-- Compiler Thought Bubble -->
|
||||
<rect x="620" y="110" width="540" height="280" rx="8" class="pnl"/>
|
||||
<text x="890" y="148" text-anchor="middle" class="sub">Compiler Thinks...</text>
|
||||
|
||||
<rect x="640" y="170" width="500" height="50" rx="4" fill="#0a0a0f" stroke="#ffaa00" stroke-width="2"/>
|
||||
<text x="655" y="202" class="amb">age = 42 is NEVER read</text>
|
||||
|
||||
<rect x="640" y="232" width="500" height="50" rx="4" fill="#0a0a0f" stroke="#ff0040" stroke-width="2"/>
|
||||
<text x="655" y="264" class="red">Dead store -> REMOVED</text>
|
||||
|
||||
<rect x="640" y="294" width="500" height="50" rx="4" fill="#0a0a0f" stroke="#00ff41" stroke-width="2"/>
|
||||
<text x="655" y="326" class="grn">age = 43 -> constant fold</text>
|
||||
|
||||
<text x="640" y="370" class="dim">Replaces variable with literal</text>
|
||||
|
||||
<!-- Assembly Result -->
|
||||
<rect x="40" y="410" width="1120" height="170" rx="8" class="pnl"/>
|
||||
<text x="600" y="448" text-anchor="middle" class="sub">Resulting Assembly</text>
|
||||
|
||||
<rect x="60" y="465" width="1080" height="95" rx="6" fill="#0a0a0f" stroke="#00ff41" stroke-width="1"/>
|
||||
<text x="80" y="498" class="grn">1000023a</text>
|
||||
<text x="280" y="498" class="amb">2b 21</text>
|
||||
<text x="420" y="498" class="txt">movs r1, #0x2b</text>
|
||||
<text x="730" y="498" class="dim">; 0x2b = 43</text>
|
||||
<text x="80" y="535" class="dim">No age=42 instruction — compiler removed it</text>
|
||||
|
||||
<!-- Key Takeaway -->
|
||||
<rect x="40" y="600" width="1120" height="180" rx="8" class="pnl"/>
|
||||
<text x="600" y="640" text-anchor="middle" class="sub">Key Takeaway</text>
|
||||
|
||||
<rect x="60" y="658" width="330" height="105" rx="6" fill="#0a0a0f" stroke="#ff0040" stroke-width="1"/>
|
||||
<text x="225" y="693" text-anchor="middle" class="red">Source Code</text>
|
||||
<text x="225" y="723" text-anchor="middle" class="txt">age = 42</text>
|
||||
<text x="225" y="748" text-anchor="middle" class="txt">age = 43</text>
|
||||
|
||||
<text x="425" y="711" text-anchor="middle" dominant-baseline="middle" class="grn">-></text>
|
||||
|
||||
<rect x="460" y="658" width="310" height="105" rx="6" fill="#0a0a0f" stroke="#00ff41" stroke-width="1"/>
|
||||
<text x="615" y="693" text-anchor="middle" class="grn">Binary</text>
|
||||
<text x="615" y="733" text-anchor="middle" class="amb">movs r1, #0x2b</text>
|
||||
|
||||
<rect x="800" y="658" width="340" height="105" rx="6" fill="#0a0a0f" stroke="#1a1a2e" stroke-width="1"/>
|
||||
<text x="970" y="698" text-anchor="middle" class="cyn">Compiler</text>
|
||||
<text x="970" y="728" text-anchor="middle" class="dim">Optimizes dead</text>
|
||||
<text x="970" y="748" text-anchor="middle" class="dim">stores away!</text>
|
||||
</svg>
|
||||
@@ -0,0 +1,86 @@
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 800">
|
||||
<style>
|
||||
.bg{fill:#0a0a0f}.pnl{fill:#12121a;stroke:#1a1a2e}.hdr{fill:#12121a}
|
||||
.title{font:bold 42px 'Courier New',monospace;fill:#00ff41}
|
||||
.sub{font:bold 28px 'Courier New',monospace;fill:#00d4ff}
|
||||
.txt{font:24px 'Courier New',monospace;fill:#c0c0c0}
|
||||
.dim{font:20px 'Courier New',monospace;fill:#888}
|
||||
.grn{font:bold 24px 'Courier New',monospace;fill:#00ff41}
|
||||
.red{font:bold 24px 'Courier New',monospace;fill:#ff0040}
|
||||
.cyn{font:bold 24px 'Courier New',monospace;fill:#00d4ff}
|
||||
.amb{font:bold 24px 'Courier New',monospace;fill:#ffaa00}
|
||||
.badge{stroke:#00ff41;rx:14}
|
||||
</style>
|
||||
<rect class="bg" width="1200" height="800"/>
|
||||
|
||||
<!-- Title -->
|
||||
<text x="600" y="52" text-anchor="middle" class="title">Binary Patching</text>
|
||||
<text x="600" y="88" text-anchor="middle" class="dim">Changing Values in the Binary</text>
|
||||
|
||||
<!-- Before Patch -->
|
||||
<rect x="40" y="110" width="540" height="240" rx="8" class="pnl"/>
|
||||
<text x="310" y="148" text-anchor="middle" class="sub">Before Patch</text>
|
||||
|
||||
<rect x="60" y="168" width="500" height="50" rx="4" fill="#0a0a0f" stroke="#ff0040" stroke-width="2"/>
|
||||
<text x="80" y="200" class="grn">1000023a</text>
|
||||
<text x="230" y="200" class="red">2b 21</text>
|
||||
<text x="330" y="200" class="txt">movs r1,#0x2b</text>
|
||||
|
||||
<text x="60" y="248" class="dim">0x2b = 43 decimal</text>
|
||||
<text x="60" y="278" class="txt">Output:</text>
|
||||
<text x="200" y="278" class="amb">age: 43</text>
|
||||
<text x="60" y="308" class="dim">Compiler-optimized constant</text>
|
||||
|
||||
<!-- After Patch -->
|
||||
<rect x="620" y="110" width="540" height="240" rx="8" class="pnl"/>
|
||||
<text x="890" y="148" text-anchor="middle" class="sub">After Patch</text>
|
||||
|
||||
<rect x="640" y="168" width="500" height="50" rx="4" fill="#0a0a0f" stroke="#00ff41" stroke-width="2"/>
|
||||
<text x="660" y="200" class="grn">1000023a</text>
|
||||
<text x="810" y="200" class="grn">46 21</text>
|
||||
<text x="910" y="200" class="txt">movs r1,#0x46</text>
|
||||
|
||||
<text x="640" y="248" class="dim">0x46 = 70 decimal</text>
|
||||
<text x="640" y="278" class="txt">Output:</text>
|
||||
<text x="780" y="278" class="grn">age: 70</text>
|
||||
<text x="640" y="308" class="dim">Changed program behavior!</text>
|
||||
|
||||
<!-- How To Patch -->
|
||||
<rect x="40" y="370" width="1120" height="200" rx="8" class="pnl"/>
|
||||
<text x="600" y="410" text-anchor="middle" class="sub">How to Patch in Ghidra</text>
|
||||
|
||||
<rect x="60" y="430" width="240" height="55" rx="6" fill="#0a0a0f" stroke="#00d4ff" stroke-width="1"/>
|
||||
<text x="180" y="465" text-anchor="middle" class="cyn">1. Find Instr</text>
|
||||
|
||||
<text x="335" y="460" text-anchor="middle" dominant-baseline="middle" class="grn">-></text>
|
||||
|
||||
<rect x="370" y="430" width="220" height="55" rx="6" fill="#0a0a0f" stroke="#ffaa00" stroke-width="1"/>
|
||||
<text x="480" y="465" text-anchor="middle" class="amb">2. Rt-Click</text>
|
||||
|
||||
<text x="620" y="460" text-anchor="middle" dominant-baseline="middle" class="grn">-></text>
|
||||
|
||||
<rect x="650" y="430" width="240" height="55" rx="6" fill="#0a0a0f" stroke="#ff0040" stroke-width="1"/>
|
||||
<text x="770" y="465" text-anchor="middle" class="red">3. Patch Val</text>
|
||||
|
||||
<text x="920" y="460" text-anchor="middle" dominant-baseline="middle" class="grn">-></text>
|
||||
|
||||
<rect x="950" y="430" width="180" height="55" rx="6" fill="#0a0a0f" stroke="#00ff41" stroke-width="1"/>
|
||||
<text x="1040" y="465" text-anchor="middle" class="grn">Done!</text>
|
||||
|
||||
<text x="60" y="540" class="dim">Patch Instruction: change operand</text>
|
||||
|
||||
<!-- Export Steps -->
|
||||
<rect x="40" y="590" width="1120" height="190" rx="8" class="pnl"/>
|
||||
<text x="600" y="630" text-anchor="middle" class="sub">Export Patched Binary</text>
|
||||
|
||||
<rect x="60" y="650" width="330" height="50" rx="4" fill="#0a0a0f" stroke="#1a1a2e"/>
|
||||
<text x="225" y="682" text-anchor="middle" class="cyn">File: Export</text>
|
||||
|
||||
<rect x="420" y="650" width="300" height="50" rx="4" fill="#0a0a0f" stroke="#1a1a2e"/>
|
||||
<text x="570" y="682" text-anchor="middle" class="amb">Format: Raw Bytes</text>
|
||||
|
||||
<rect x="750" y="650" width="380" height="50" rx="4" fill="#0a0a0f" stroke="#1a1a2e"/>
|
||||
<text x="940" y="682" text-anchor="middle" class="grn">Save as *-h.bin</text>
|
||||
|
||||
<text x="60" y="745" class="dim">Exported binary has your patches</text>
|
||||
</svg>
|
||||
|
After Width: | Height: | Size: 4.1 KiB |
@@ -0,0 +1,99 @@
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 800">
|
||||
<style>
|
||||
.bg{fill:#0a0a0f}.pnl{fill:#12121a;stroke:#1a1a2e}.hdr{fill:#12121a}
|
||||
.title{font:bold 42px 'Courier New',monospace;fill:#00ff41}
|
||||
.sub{font:bold 28px 'Courier New',monospace;fill:#00d4ff}
|
||||
.txt{font:24px 'Courier New',monospace;fill:#c0c0c0}
|
||||
.dim{font:20px 'Courier New',monospace;fill:#888}
|
||||
.grn{font:bold 24px 'Courier New',monospace;fill:#00ff41}
|
||||
.red{font:bold 24px 'Courier New',monospace;fill:#ff0040}
|
||||
.cyn{font:bold 24px 'Courier New',monospace;fill:#00d4ff}
|
||||
.amb{font:bold 24px 'Courier New',monospace;fill:#ffaa00}
|
||||
.badge{stroke:#00ff41;rx:14}
|
||||
</style>
|
||||
<rect class="bg" width="1200" height="800"/>
|
||||
|
||||
<!-- Title -->
|
||||
<text x="600" y="52" text-anchor="middle" class="title">GPIO Hacking</text>
|
||||
<text x="600" y="88" text-anchor="middle" class="dim">Patching GPIO 16 to GPIO 17</text>
|
||||
|
||||
<!-- Original Code -->
|
||||
<rect x="40" y="110" width="540" height="280" rx="8" class="pnl"/>
|
||||
<text x="310" y="148" text-anchor="middle" class="sub">Original: GPIO 16</text>
|
||||
<text x="60" y="185" class="red">Red LED on pin 16</text>
|
||||
|
||||
<rect x="60" y="205" width="500" height="42" rx="4" fill="#0a0a0f" stroke="#ff0040" stroke-width="1"/>
|
||||
<text x="80" y="233" class="grn">1000023a</text>
|
||||
<text x="230" y="233" class="red">10 20</text>
|
||||
<text x="330" y="233" class="txt">movs r0,#0x10</text>
|
||||
|
||||
<rect x="60" y="255" width="500" height="42" rx="4" fill="#0a0a0f" stroke="#ff0040" stroke-width="1"/>
|
||||
<text x="80" y="283" class="grn">10000244</text>
|
||||
<text x="230" y="283" class="red">10 23</text>
|
||||
<text x="330" y="283" class="txt">movs r3,#0x10</text>
|
||||
|
||||
<rect x="60" y="305" width="500" height="42" rx="4" fill="#0a0a0f" stroke="#ff0040" stroke-width="1"/>
|
||||
<text x="80" y="333" class="grn">10000252</text>
|
||||
<text x="230" y="333" class="red">10 24</text>
|
||||
<text x="330" y="333" class="txt">movs r4,#0x10</text>
|
||||
|
||||
<text x="60" y="368" class="dim">0x10 = 16, three locations</text>
|
||||
|
||||
<!-- Patched Code -->
|
||||
<rect x="620" y="110" width="540" height="280" rx="8" class="pnl"/>
|
||||
<text x="890" y="148" text-anchor="middle" class="sub">Patched: GPIO 17</text>
|
||||
<text x="640" y="185" class="grn">Green LED on pin 17</text>
|
||||
|
||||
<rect x="640" y="205" width="500" height="42" rx="4" fill="#0a0a0f" stroke="#00ff41" stroke-width="1"/>
|
||||
<text x="660" y="233" class="grn">1000023a</text>
|
||||
<text x="810" y="233" class="grn">11 20</text>
|
||||
<text x="910" y="233" class="txt">movs r0,#0x11</text>
|
||||
|
||||
<rect x="640" y="255" width="500" height="42" rx="4" fill="#0a0a0f" stroke="#00ff41" stroke-width="1"/>
|
||||
<text x="660" y="283" class="grn">10000244</text>
|
||||
<text x="810" y="283" class="grn">11 23</text>
|
||||
<text x="910" y="283" class="txt">movs r3,#0x11</text>
|
||||
|
||||
<rect x="640" y="305" width="500" height="42" rx="4" fill="#0a0a0f" stroke="#00ff41" stroke-width="1"/>
|
||||
<text x="660" y="333" class="grn">10000252</text>
|
||||
<text x="810" y="333" class="grn">11 24</text>
|
||||
<text x="910" y="333" class="txt">movs r4,#0x11</text>
|
||||
|
||||
<text x="640" y="368" class="dim">0x11 = 17, all patched!</text>
|
||||
|
||||
<!-- What Each Patch Does -->
|
||||
<rect x="40" y="410" width="1120" height="170" rx="8" class="pnl"/>
|
||||
<text x="600" y="448" text-anchor="middle" class="sub">What Each Patch Controls</text>
|
||||
|
||||
<rect x="60" y="468" width="340" height="50" rx="4" fill="#0a0a0f" stroke="#00d4ff" stroke-width="1"/>
|
||||
<text x="80" y="500" class="cyn">gpio_init</text>
|
||||
<text x="240" y="500" class="dim">r0</text>
|
||||
|
||||
<rect x="420" y="468" width="340" height="50" rx="4" fill="#0a0a0f" stroke="#ffaa00" stroke-width="1"/>
|
||||
<text x="440" y="500" class="amb">gpio_set_dir</text>
|
||||
<text x="640" y="500" class="dim">r3</text>
|
||||
|
||||
<rect x="780" y="468" width="360" height="50" rx="4" fill="#0a0a0f" stroke="#00ff41" stroke-width="1"/>
|
||||
<text x="800" y="500" class="grn">gpio_put</text>
|
||||
<text x="960" y="500" class="dim">r4</text>
|
||||
|
||||
<text x="60" y="550" class="dim">ALL pin refs must be patched</text>
|
||||
|
||||
<!-- Bonus Patch -->
|
||||
<rect x="40" y="600" width="1120" height="180" rx="8" class="pnl"/>
|
||||
<text x="600" y="640" text-anchor="middle" class="sub">Bonus: Change Print Value</text>
|
||||
|
||||
<rect x="60" y="660" width="480" height="50" rx="4" fill="#0a0a0f" stroke="#ff0040" stroke-width="1"/>
|
||||
<text x="80" y="692" class="red">00 21</text>
|
||||
<text x="170" y="692" class="txt">movs r1,#0x0</text>
|
||||
<text x="400" y="692" class="dim">age: 0</text>
|
||||
|
||||
<text x="570" y="692" text-anchor="middle" dominant-baseline="middle" class="grn">-></text>
|
||||
|
||||
<rect x="600" y="660" width="530" height="50" rx="4" fill="#0a0a0f" stroke="#00ff41" stroke-width="1"/>
|
||||
<text x="620" y="692" class="grn">42 21</text>
|
||||
<text x="720" y="692" class="txt">movs r1,#0x42</text>
|
||||
<text x="960" y="692" class="grn">age: 66</text>
|
||||
|
||||
<text x="60" y="748" class="dim">Changed value: 0 to 66 (0x42)</text>
|
||||
</svg>
|
||||
|
After Width: | Height: | Size: 4.6 KiB |
@@ -0,0 +1,78 @@
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 800">
|
||||
<style>
|
||||
.bg{fill:#0a0a0f}.pnl{fill:#12121a;stroke:#1a1a2e}.hdr{fill:#12121a}
|
||||
.title{font:bold 42px 'Courier New',monospace;fill:#00ff41}
|
||||
.sub{font:bold 28px 'Courier New',monospace;fill:#00d4ff}
|
||||
.txt{font:24px 'Courier New',monospace;fill:#c0c0c0}
|
||||
.dim{font:20px 'Courier New',monospace;fill:#888}
|
||||
.grn{font:bold 24px 'Courier New',monospace;fill:#00ff41}
|
||||
.red{font:bold 24px 'Courier New',monospace;fill:#ff0040}
|
||||
.cyn{font:bold 24px 'Courier New',monospace;fill:#00d4ff}
|
||||
.amb{font:bold 24px 'Courier New',monospace;fill:#ffaa00}
|
||||
.badge{stroke:#00ff41;rx:14}
|
||||
</style>
|
||||
<rect class="bg" width="1200" height="800"/>
|
||||
|
||||
<!-- Title -->
|
||||
<text x="600" y="52" text-anchor="middle" class="title">GPIO Coprocessor</text>
|
||||
<text x="600" y="88" text-anchor="middle" class="dim">RP2350 Single-Cycle I/O via mcrr</text>
|
||||
|
||||
<!-- MCRR Instruction Anatomy -->
|
||||
<rect x="40" y="110" width="1120" height="195" rx="8" class="pnl"/>
|
||||
<text x="600" y="148" text-anchor="middle" class="sub">mcrr Instruction Breakdown</text>
|
||||
|
||||
<rect x="60" y="168" width="1080" height="50" rx="4" fill="#0a0a0f" stroke="#00ff41" stroke-width="2"/>
|
||||
<text x="600" y="200" text-anchor="middle" class="grn">mcrr p0, #4, r4, r5, c0</text>
|
||||
|
||||
<text x="80" y="250" class="cyn">mcrr</text>
|
||||
<text x="200" y="250" class="dim">Move to Coprocessor (2 regs)</text>
|
||||
<text x="80" y="278" class="amb">p0</text>
|
||||
<text x="200" y="278" class="dim">Coprocessor 0 (GPIO)</text>
|
||||
<text x="620" y="250" class="grn">r4</text>
|
||||
<text x="700" y="250" class="dim">GPIO pin number</text>
|
||||
<text x="620" y="278" class="red">r5</text>
|
||||
<text x="700" y="278" class="dim">Value (0=LOW, 1=HIGH)</text>
|
||||
|
||||
<!-- Two Coprocessor Registers -->
|
||||
<rect x="40" y="320" width="540" height="210" rx="8" class="pnl"/>
|
||||
<text x="310" y="358" text-anchor="middle" class="sub">Output Value (c0)</text>
|
||||
|
||||
<rect x="60" y="378" width="500" height="50" rx="4" fill="#0a0a0f" stroke="#00ff41" stroke-width="1"/>
|
||||
<text x="80" y="410" class="grn">mcrr p0,#4,r4,r5,c0</text>
|
||||
|
||||
<text x="60" y="455" class="txt">r4 = pin number</text>
|
||||
<text x="60" y="485" class="txt">r5 = 0 or 1</text>
|
||||
<text x="60" y="515" class="dim">Controls GPIO output state</text>
|
||||
|
||||
<rect x="620" y="320" width="540" height="210" rx="8" class="pnl"/>
|
||||
<text x="890" y="358" text-anchor="middle" class="sub">Output Enable (c4)</text>
|
||||
|
||||
<rect x="640" y="378" width="500" height="50" rx="4" fill="#0a0a0f" stroke="#ffaa00" stroke-width="1"/>
|
||||
<text x="660" y="410" class="amb">mcrr p0,#4,r4,r5,c4</text>
|
||||
|
||||
<text x="640" y="455" class="txt">r4 = pin number</text>
|
||||
<text x="640" y="485" class="txt">r5 = 1 (enable output)</text>
|
||||
<text x="640" y="515" class="dim">Sets pin direction to OUTPUT</text>
|
||||
|
||||
<!-- GPIO Init Full Sequence -->
|
||||
<rect x="40" y="545" width="1120" height="235" rx="8" class="pnl"/>
|
||||
<text x="600" y="583" text-anchor="middle" class="sub">gpio_init(16) Sequence</text>
|
||||
|
||||
<rect x="60" y="603" width="340" height="80" rx="6" fill="#0a0a0f" stroke="#00d4ff" stroke-width="1"/>
|
||||
<text x="230" y="633" text-anchor="middle" class="cyn">Step 1: Config Pad</text>
|
||||
<text x="230" y="660" text-anchor="middle" class="dim">addr 0x40038044</text>
|
||||
|
||||
<rect x="420" y="603" width="340" height="80" rx="6" fill="#0a0a0f" stroke="#ffaa00" stroke-width="1"/>
|
||||
<text x="590" y="633" text-anchor="middle" class="amb">Step 2: Set Func</text>
|
||||
<text x="590" y="660" text-anchor="middle" class="dim">FUNCSEL = 5 (SIO)</text>
|
||||
|
||||
<rect x="780" y="603" width="340" height="80" rx="6" fill="#0a0a0f" stroke="#00ff41" stroke-width="1"/>
|
||||
<text x="950" y="633" text-anchor="middle" class="grn">Step 3: Enable Out</text>
|
||||
<text x="950" y="660" text-anchor="middle" class="dim">mcrr p0,#4,r4,r5,c4</text>
|
||||
|
||||
<line x1="400" y1="643" x2="420" y2="643" stroke="#00ff41" stroke-width="2"/>
|
||||
<line x1="760" y1="643" x2="780" y2="643" stroke="#00ff41" stroke-width="2"/>
|
||||
|
||||
<text x="60" y="720" class="dim">Pad: clear OD, set IE, clear ISO</text>
|
||||
<text x="60" y="750" class="dim">SIO = fast single-cycle GPIO access</text>
|
||||
</svg>
|
||||
|
After Width: | Height: | Size: 3.9 KiB |
@@ -0,0 +1,119 @@
|
||||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 800">
|
||||
<style>
|
||||
.bg{fill:#0a0a0f}.pnl{fill:#12121a;stroke:#1a1a2e}.hdr{fill:#12121a}
|
||||
.title{font:bold 42px 'Courier New',monospace;fill:#00ff41}
|
||||
.sub{font:bold 28px 'Courier New',monospace;fill:#00d4ff}
|
||||
.txt{font:24px 'Courier New',monospace;fill:#c0c0c0}
|
||||
.dim{font:20px 'Courier New',monospace;fill:#888}
|
||||
.grn{font:bold 24px 'Courier New',monospace;fill:#00ff41}
|
||||
.red{font:bold 24px 'Courier New',monospace;fill:#ff0040}
|
||||
.cyn{font:bold 24px 'Courier New',monospace;fill:#00d4ff}
|
||||
.amb{font:bold 24px 'Courier New',monospace;fill:#ffaa00}
|
||||
.badge{stroke:#00ff41;rx:14}
|
||||
</style>
|
||||
<rect class="bg" width="1200" height="800"/>
|
||||
|
||||
<!-- Title -->
|
||||
<text x="600" y="52" text-anchor="middle" class="title">Full Patching Pipeline</text>
|
||||
<text x="600" y="88" text-anchor="middle" class="dim">End-to-End Binary Hacking Workflow</text>
|
||||
|
||||
<!-- Step 1 -->
|
||||
<rect x="40" y="115" width="365" height="160" rx="8" class="pnl"/>
|
||||
<rect x="55" y="130" width="40" height="40" rx="20" fill="#0a0a0f" stroke="#00ff41" stroke-width="2"/>
|
||||
<text x="75" y="158" text-anchor="middle" class="grn">1</text>
|
||||
<text x="110" y="158" class="sub">Import .bin</text>
|
||||
<text x="55" y="195" class="txt">Ghidra: Import</text>
|
||||
<text x="55" y="225" class="cyn">ARM Cortex 32 LE</text>
|
||||
<text x="55" y="252" class="dim">Base: 0x10000000</text>
|
||||
|
||||
<!-- Arrow 1-2 -->
|
||||
<line x1="405" y1="195" x2="425" y2="195" stroke="#00ff41" stroke-width="2"/>
|
||||
|
||||
<!-- Step 2 -->
|
||||
<rect x="425" y="115" width="345" height="160" rx="8" class="pnl"/>
|
||||
<rect x="440" y="130" width="40" height="40" rx="20" fill="#0a0a0f" stroke="#00d4ff" stroke-width="2"/>
|
||||
<text x="460" y="158" text-anchor="middle" class="cyn">2</text>
|
||||
<text x="495" y="158" class="sub">Analyze</text>
|
||||
<text x="440" y="195" class="txt">Auto-analyze</text>
|
||||
<text x="440" y="225" class="txt">Rename functions</text>
|
||||
<text x="440" y="252" class="dim">Fix signatures</text>
|
||||
|
||||
<!-- Arrow 2-3 -->
|
||||
<line x1="770" y1="195" x2="790" y2="195" stroke="#00ff41" stroke-width="2"/>
|
||||
|
||||
<!-- Step 3 -->
|
||||
<rect x="790" y="115" width="370" height="160" rx="8" class="pnl"/>
|
||||
<rect x="805" y="130" width="40" height="40" rx="20" fill="#0a0a0f" stroke="#ffaa00" stroke-width="2"/>
|
||||
<text x="825" y="158" text-anchor="middle" class="amb">3</text>
|
||||
<text x="860" y="158" class="sub">Find Target</text>
|
||||
<text x="805" y="195" class="txt">Listing window</text>
|
||||
<text x="805" y="225" class="txt">Find movs rN,#val</text>
|
||||
<text x="805" y="252" class="dim">Identify bytes to change</text>
|
||||
|
||||
<!-- Step 4 -->
|
||||
<rect x="40" y="295" width="365" height="160" rx="8" class="pnl"/>
|
||||
<rect x="55" y="310" width="40" height="40" rx="20" fill="#0a0a0f" stroke="#ff0040" stroke-width="2"/>
|
||||
<text x="75" y="338" text-anchor="middle" class="red">4</text>
|
||||
<text x="110" y="338" class="sub">Patch</text>
|
||||
<text x="55" y="375" class="txt">Right-click:</text>
|
||||
<text x="55" y="405" class="txt">Patch Instruction</text>
|
||||
<text x="55" y="432" class="dim">Change operand value</text>
|
||||
|
||||
<!-- Arrow 4-5 -->
|
||||
<line x1="405" y1="375" x2="425" y2="375" stroke="#00ff41" stroke-width="2"/>
|
||||
|
||||
<!-- Step 5 -->
|
||||
<rect x="425" y="295" width="345" height="160" rx="8" class="pnl"/>
|
||||
<rect x="440" y="310" width="40" height="40" rx="20" fill="#0a0a0f" stroke="#00ff41" stroke-width="2"/>
|
||||
<text x="460" y="338" text-anchor="middle" class="grn">5</text>
|
||||
<text x="495" y="338" class="sub">Export</text>
|
||||
<text x="440" y="375" class="txt">File: Export</text>
|
||||
<text x="440" y="405" class="amb">Format: Raw Bytes</text>
|
||||
<text x="440" y="432" class="dim">Save as *-h.bin</text>
|
||||
|
||||
<!-- Arrow 5-6 -->
|
||||
<line x1="770" y1="375" x2="790" y2="375" stroke="#00ff41" stroke-width="2"/>
|
||||
|
||||
<!-- Step 6 -->
|
||||
<rect x="790" y="295" width="370" height="160" rx="8" class="pnl"/>
|
||||
<rect x="805" y="310" width="40" height="40" rx="20" fill="#0a0a0f" stroke="#00d4ff" stroke-width="2"/>
|
||||
<text x="825" y="338" text-anchor="middle" class="cyn">6</text>
|
||||
<text x="860" y="338" class="sub">Convert UF2</text>
|
||||
<text x="805" y="375" class="txt">uf2conv.py</text>
|
||||
<text x="805" y="405" class="amb">--family 0xe48bff59</text>
|
||||
<text x="805" y="432" class="dim">RP2350 family ID</text>
|
||||
|
||||
<!-- UF2 Command -->
|
||||
<rect x="40" y="475" width="1120" height="90" rx="8" class="pnl"/>
|
||||
<text x="60" y="505" class="sub">UF2 Command</text>
|
||||
<rect x="60" y="518" width="1080" height="35" rx="4" fill="#0a0a0f" stroke="#00ff41" stroke-width="1"/>
|
||||
<text x="80" y="542" class="grn">python uf2conv.py file.bin --base 0x10000000 -o hacked.uf2</text>
|
||||
|
||||
<!-- Flash & Verify -->
|
||||
<rect x="40" y="585" width="540" height="195" rx="8" class="pnl"/>
|
||||
<text x="310" y="623" text-anchor="middle" class="sub">Flash to Pico 2</text>
|
||||
<text x="60" y="658" class="txt">1. Hold BOOTSEL + USB</text>
|
||||
<text x="60" y="688" class="txt">2. Drop hacked.uf2</text>
|
||||
<text x="60" y="718" class="txt">3. Pico reboots hacked</text>
|
||||
<text x="60" y="748" class="dim">RPI-RP2 drive in BOOTSEL</text>
|
||||
|
||||
<!-- Key Memory Sections -->
|
||||
<rect x="620" y="585" width="540" height="195" rx="8" class="pnl"/>
|
||||
<text x="890" y="623" text-anchor="middle" class="sub">Key Sections</text>
|
||||
|
||||
<text x="640" y="658" class="grn">.text</text>
|
||||
<text x="800" y="658" class="txt">Flash</text>
|
||||
<text x="940" y="658" class="dim">Code</text>
|
||||
|
||||
<text x="640" y="688" class="cyn">.rodata</text>
|
||||
<text x="800" y="688" class="txt">Flash</text>
|
||||
<text x="940" y="688" class="dim">Constants</text>
|
||||
|
||||
<text x="640" y="718" class="amb">.data</text>
|
||||
<text x="800" y="718" class="txt">RAM</text>
|
||||
<text x="940" y="718" class="dim">Init globals</text>
|
||||
|
||||
<text x="640" y="748" class="red">.bss</text>
|
||||
<text x="800" y="748" class="txt">RAM</text>
|
||||
<text x="940" y="748" class="dim">Zeroed globals</text>
|
||||
</svg>
|
||||
|
After Width: | Height: | Size: 5.5 KiB |
Reference in New Issue
Block a user