Merge pull request #2097 from riscv-software-src/fix-werror

Actually use -Werror in CI again

ci-tests/build-spike

@@ -8,7 +8,9 @@ rm -rf build
 mkdir build
 cd build
 mkdir install
-CXXFLAGS="-Wnon-virtual-dtor" CFLAGS="-Werror -Wall -Wextra -Wvla" $DIR/../configure --prefix=`pwd`/install
+CFLAGS="-Werror -Wall -Wextra -Wvla"
+CXXFLAGS="-Wnon-virtual-dtor $CFLAGS"
+CXXFLAGS="$CXXFLAGS" CFLAGS="$CFLAGS" $DIR/../configure --prefix=`pwd`/install
 make -j"$(nproc 2> /dev/null || sysctl -n hw.ncpu)"
 make check
 make install install-hdrs-list.h

riscv/bulknormdot.h

@@ -2,7 +2,7 @@
 #define _RISCV_BULKNORMDOT_H
 
 #include <cstdint>
-#include <iostream>
+#include <vector>
 #include "softfloat.h"
 
 struct bulk_norm_out_t {
@@ -56,6 +56,9 @@ template <typename U, typename M, typename E> class FloatFormat {
   virtual bool nan() const = 0;
   virtual bool sigNan() const = 0;
   virtual bool special() const = 0;
+
+public:
+  virtual ~FloatFormat() = default;
 };
 
 /** Template for an IEEE-754 floating-point format class */
@@ -178,8 +181,8 @@ class ofp8_e4m3 final : public IEEEFloatFormat<uint8_t, uint8_t, uint8_t, 4, 3>
  */
 template<typename ValueTypeLHS, typename ValueTypeRHS, typename SigProdType> bulk_norm_out_t bulk_norm_dot_no_mult(const DotConfig cfg, const ValueTypeLHS* a, const ValueTypeRHS* b, const SigProdType* prod_sigs)
 {
-  int approx_prod_exp[cfg.n];
+  std::vector<int> approx_prod_exp(cfg.n);
-  int flushed_prods[cfg.n];
+  std::vector<int> flushed_prods(cfg.n);
 
   bool any_pos_inf     = false;
   bool any_neg_inf     = false;
@@ -299,27 +302,27 @@ template<typename ValueTypeLHS, typename ValueTypeRHS, typename SigProdType> bul
 static inline bulk_norm_out_t bulk_norm_dot_bf16(const DotConfig cfg, const bf16_t* a, const bf16_t* b)
 {
   // product are extracted so that the no-mult version can be more easily matched against the RTL implementation
-  uint16_t prod_sigs[cfg.n];
+  std::vector<uint16_t> prod_sigs(cfg.n);
 
   // compute products, normalize to largest exponent, accumulate
   for (int i = 0; i < cfg.n; i++) {
     prod_sigs[i] = a[i].sig() * (uint16_t) b[i].sig();
   }
 
-  return bulk_norm_dot_no_mult<bf16_t, bf16_t, uint16_t>(cfg, a, b, prod_sigs);
+  return bulk_norm_dot_no_mult<bf16_t, bf16_t, uint16_t>(cfg, a, b, &prod_sigs[0]);
 }
 
 template <typename L, typename R>
 bulk_norm_out_t bulk_norm_dot_ofp8(const DotConfig cfg, const L* a, const R* b)
 {
   // products are extracted so that the no-mult version can be more easily matched against the RTL implementation
-  uint16_t prod_sigs[cfg.n];
+  std::vector<uint16_t> prod_sigs(cfg.n);
 
   // compute products, normalize to largest exponent, accumulate
   for (int i = 0; i < cfg.n; i++) {
     prod_sigs[i] = a[i].sig() * (uint16_t) b[i].sig();
   }
-  return bulk_norm_dot_no_mult<L, R, uint16_t>(cfg, a, b, prod_sigs);
+  return bulk_norm_dot_no_mult<L, R, uint16_t>(cfg, a, b, &prod_sigs[0]);
 }
 
 #endif

riscv/csrs.cc

@@ -2141,7 +2141,7 @@ inaccessible_csr_t::inaccessible_csr_t(processor_t* const proc, const reg_t addr
   csr_t(proc, addr) {
 }
 
-void inaccessible_csr_t::verify_permissions(insn_t insn, bool write) const {
+void inaccessible_csr_t::verify_permissions(insn_t insn, bool UNUSED write) const {
   if (state->v)
     throw trap_virtual_instruction(insn.bits());
   else

riscv/interactive.cc

@@ -72,6 +72,12 @@ processor_t *sim_t::get_core(const std::string& i)
   return get_core(p);
 }
 
+static void do_write(int fd, const void* buf, size_t n)
+{
+  auto res = write(fd, buf, n);
+  (void) res;
+}
+
 static void clear_str(bool noncanonical, int fd, std::string target_str)
 {
   if (noncanonical)
@@ -83,7 +89,7 @@ static void clear_str(bool noncanonical, int fd, std::string target_str)
       clear_motion += ' ';
     }
     clear_motion += '\r';
-    (void) write(fd, clear_motion.c_str(), clear_motion.size() + 1);
+    do_write(fd, clear_motion.c_str(), clear_motion.size() + 1);
   }
 }
 
@@ -96,7 +102,7 @@ static void send_key(bool noncanonical, int fd, keybuffer_t key_code, const int
     {
       key_motion += (char) ((key_code >> (i * BITS_PER_CHAR)) & 0xff);
     }
-    (void) write(fd, key_motion.c_str(), len);
+    do_write(fd, key_motion.c_str(), len);
   }
 }
 
@@ -144,7 +150,7 @@ static std::string readline(int fd)
         cursor_pos--;
         s.erase(cursor_pos, 1);
         if (noncanonical)
-          (void) write(fd, s.c_str(), s.size() + 1);
+          do_write(fd, s.c_str(), s.size() + 1);
         // move cursor by left arrow key
         for (unsigned i = 0; i < s.size() - cursor_pos; i++) {
           send_key(noncanonical, fd, KEYCODE_LEFT, 3);
@@ -176,7 +182,7 @@ static std::string readline(int fd)
           history_index = std::min(history_commands.size(), history_index + 1);
           s = history_commands[history_commands.size() - history_index];
           if (noncanonical)
-            (void) write(fd, s.c_str(), s.size() + 1);
+            do_write(fd, s.c_str(), s.size() + 1);
           cursor_pos = s.size();
         }
         key_buffer = 0;
@@ -192,7 +198,7 @@ static std::string readline(int fd)
             s = history_commands[history_commands.size() - history_index];
           }
           if (noncanonical)
-            (void) write(fd, s.c_str(), s.size() + 1);
+            do_write(fd, s.c_str(), s.size() + 1);
           cursor_pos = s.size();
         }
         key_buffer = 0;
@@ -221,7 +227,7 @@ static std::string readline(int fd)
         break;
       case KEYCODE_ENTER:
         if (noncanonical)
-          (void) write(fd, &ch, 1);
+          do_write(fd, &ch, 1);
         if (s.size() > initial_s_len && (history_commands.size() == 0 || s != history_commands[history_commands.size() - 1])) {
           history_commands.push_back(s);
         }
@@ -236,7 +242,7 @@ static std::string readline(int fd)
         s.insert(cursor_pos, 1, ch);
         cursor_pos++;
         if (noncanonical)
-          (void) write(fd, s.c_str(), s.size() + 1);
+          do_write(fd, s.c_str(), s.size() + 1);
         // send left arrow key to move cursor
         for (unsigned i = 0; i < s.size() - cursor_pos; i++) {
           send_key(noncanonical, fd, KEYCODE_LEFT, 3);