Merge pull request hathach#1716 from silvergasp/master

fuzz: Add support for fuzzing

Author: hathach

.github/workflows/build_aarch64.yml

@@ -3,17 +3,17 @@ name: Build AArch64
 on:
   push:
     paths:
-      - 'src'
-      - 'examples'
-      - 'lib'
-      - 'hw'
+      - 'src/**'
+      - 'examples/**'
+      - 'lib/**'
+      - 'hw/**'
   pull_request:
     branches: [ master ]
     paths:
-      - 'src'
-      - 'examples'
-      - 'lib'
-      - 'hw'
+      - 'src/**'
+      - 'examples/**'
+      - 'lib/**'
+      - 'hw/**'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}

.github/workflows/build_arm.yml

@@ -3,17 +3,17 @@ name: Build ARM
 on:
   push:
     paths:
-      - 'src'
-      - 'examples'
-      - 'lib'
-      - 'hw'
+      - 'src/**'
+      - 'examples/**'
+      - 'lib/**'
+      - 'hw/**'
   pull_request:
     branches: [ master ]
     paths:
-      - 'src'
-      - 'examples'
-      - 'lib'
-      - 'hw'
+      - 'src/**'
+      - 'examples/**'
+      - 'lib/**'
+      - 'hw/**'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}

.github/workflows/build_esp.yml

@@ -3,17 +3,17 @@ name: Build ESP
 on:
   push:
     paths:
-      - 'src'
-      - 'examples'
-      - 'lib'
-      - 'hw'
+      - 'src/**'
+      - 'examples/**'
+      - 'lib/**'
+      - 'hw/**'
   pull_request:
     branches: [ master ]
     paths:
-      - 'src'
-      - 'examples'
-      - 'lib'
-      - 'hw'
+      - 'src/**'
+      - 'examples/**'
+      - 'lib/**'
+      - 'hw/**'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}

.github/workflows/build_msp430.yml

@@ -3,17 +3,17 @@ name: Build MSP430
 on:
   push:
     paths:
-      - 'src'
-      - 'examples'
-      - 'lib'
-      - 'hw'
+      - 'src/**'
+      - 'examples/**'
+      - 'lib/**'
+      - 'hw/**'
   pull_request:
     branches: [ master ]
     paths:
-      - 'src'
-      - 'examples'
-      - 'lib'
-      - 'hw'
+      - 'src/**'
+      - 'examples/**'
+      - 'lib/**'
+      - 'hw/**'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}

.github/workflows/build_renesas.yml

@@ -3,17 +3,17 @@ name: Build Renesas
 on:
   push:
     paths:
-      - 'src'
-      - 'examples'
-      - 'lib'
-      - 'hw'
+      - 'src/**'
+      - 'examples/**'
+      - 'lib/**'
+      - 'hw/**'
   pull_request:
     branches: [ master ]
     paths:
-      - 'src'
-      - 'examples'
-      - 'lib'
-      - 'hw'
+      - 'src/**'
+      - 'examples/**'
+      - 'lib/**'
+      - 'hw/**'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}

.github/workflows/build_riscv.yml

@@ -3,17 +3,17 @@ name: Build RISC-V
 on:
   push:
     paths:
-      - 'src'
-      - 'examples'
-      - 'lib'
-      - 'hw'
+      - 'src/**'
+      - 'examples/**'
+      - 'lib/**'
+      - 'hw/**'
   pull_request:
     branches: [ master ]
     paths:
-      - 'src'
-      - 'examples'
-      - 'lib'
-      - 'hw'
+      - 'src/**'
+      - 'examples/**'
+      - 'lib/**'
+      - 'hw/**'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}

.github/workflows/pre-commit.yml

@@ -34,4 +34,13 @@ jobs:
         # Install Ceedling
         gem install ceedling
         cd test/unit-test
-        ceedling test:all
+        ceedling test:all
+
+    - name: Build Fuzzer
+      run: |
+        fuzz_harness=$(ls -d test/fuzz/device/*/)
+        for h in $fuzz_harness
+        do
+          make -C $h get-deps
+          make -C $h all
+        done

.github/workflows/test_hardware.yml

@@ -3,17 +3,17 @@ name: Hardware Test
 on:
   push:
     paths:
-      - 'src'
-      - 'examples'
-      - 'lib'
-      - 'hw'
+      - 'src/**'
+      - 'examples/**'
+      - 'lib/**'
+      - 'hw/**'
   pull_request:
     branches: [ master ]
     paths:
-      - 'src'
-      - 'examples'
-      - 'lib'
-      - 'hw'
+      - 'src/**'
+      - 'examples/**'
+      - 'lib/**'
+      - 'hw/**'
 
 # Hardware in the loop (HIL)
 # Current self-hosted instance is running on an EPYC 7232 server hosted by HiFiPhile user

src/class/cdc/cdc_device.c

@@ -171,6 +171,7 @@ uint32_t tud_cdc_n_write(uint8_t itf, void const* buffer, uint32_t bufsize)
   uint16_t ret = tu_fifo_write_n(&p_cdc->tx_ff, buffer, (uint16_t) bufsize);
 
   // flush if queue more than packet size
+  // may need to suppress -Wunreachable-code since most of the time CFG_TUD_CDC_TX_BUFSIZE < BULK_PACKET_SIZE
   if ( (tu_fifo_count(&p_cdc->tx_ff) >= BULK_PACKET_SIZE) || ((CFG_TUD_CDC_TX_BUFSIZE < BULK_PACKET_SIZE) && tu_fifo_full(&p_cdc->tx_ff)) )
   {
     tud_cdc_n_write_flush(itf);