libfuzzer/FuzzerInterceptors.cpp:62:36: error: 'size_t' has not been declared

[kolbma]

Can't build it on target x86_64-unknown-linux-musl ...
Seems to be missed to #include <cstddef> somewhere to be compatible?

  running: "c++" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-Wall" "-Wextra" "-std=c++11" "-fno-omit-frame-pointer" "-w" "-o" "/home/rocket/Rocket_v0.5.0-rc.2/core/lib/fuzz/target/debug/build/libfuzzer-sys-6a0b651a20d3591b/out/libfuzzer/FuzzerInterceptors.o" "-c" "libfuzzer/FuzzerInterceptors.cpp"
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:62:36: error: 'size_t' has not been declared
  cargo:warning=   62 |                                    size_t n) {
  cargo:warning=      |                                    ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp: In function 'int internal_strcmp_strncmp(const char*, const char*, bool, int)':
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:63:3: error: 'size_t' was not declared in this scope; did you mean 'std::size_t'?
  cargo:warning=   63 |   size_t i = 0;
  cargo:warning=      |   ^~~~~~
  cargo:warning=      |   std::size_t
  cargo:warning=In file included from /usr/include/c++/10.3.1/cassert:43,
  cargo:warning=                 from libfuzzer/FuzzerInterceptors.cpp:27:
  cargo:warning=/usr/include/c++/10.3.1/x86_64-alpine-linux-musl/bits/c++config.h:264:26: note: 'std::size_t' declared here
  cargo:warning=  264 |   typedef __SIZE_TYPE__  size_t;
  cargo:warning=      |                          ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:66:11: error: 'i' was not declared in this scope
  cargo:warning=   66 |       if (i == n)
  cargo:warning=      |           ^
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:68:7: error: 'i' was not declared in this scope
  cargo:warning=   68 |       i++;
  cargo:warning=      |       ^
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp: At global scope:
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:82:61: error: 'size_t' has not been declared
  cargo:warning=   82 | static int internal_strncmp(const char *s1, const char *s2, size_t n) {
  cargo:warning=      |                                                             ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:90:60: error: 'size_t' has not been declared
  cargo:warning=   90 | static int internal_memcmp(const void *s1, const void *s2, size_t n) {
  cargo:warning=      |                                                            ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp: In function 'int internal_memcmp(const void*, const void*, int)':
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:93:8: error: 'size_t' was not declared in this scope; did you mean 'std::size_t'?
  cargo:warning=   93 |   for (size_t i = 0; i < n; ++i, ++t1, ++t2)
  cargo:warning=      |        ^~~~~~
  cargo:warning=      |        std::size_t
  cargo:warning=In file included from /usr/include/c++/10.3.1/cassert:43,
  cargo:warning=                 from libfuzzer/FuzzerInterceptors.cpp:27:
  cargo:warning=/usr/include/c++/10.3.1/x86_64-alpine-linux-musl/bits/c++config.h:264:26: note: 'std::size_t' declared here
  cargo:warning=  264 |   typedef __SIZE_TYPE__  size_t;
  cargo:warning=      |                          ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:93:22: error: 'i' was not declared in this scope
  cargo:warning=   93 |   for (size_t i = 0; i < n; ++i, ++t1, ++t2)
  cargo:warning=      |                      ^
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp: At global scope:
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:99:8: error: 'size_t' does not name a type
  cargo:warning=   99 | static size_t internal_strlen(const char *s) {
  cargo:warning=      |        ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:30:1: note: 'size_t' is defined in header '<cstddef>'; did you forget to '#include <cstddef>'?
  cargo:warning=   29 | #include <dlfcn.h> // for dlsym()
  cargo:warning=  +++ |+#include <cstddef>
  cargo:warning=   30 | 
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp: In function 'char* internal_strstr(const char*, const char*)':
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:108:3: error: 'size_t' was not declared in this scope; did you mean 'std::size_t'?
  cargo:warning=  108 |   size_t len1 = internal_strlen(haystack);
  cargo:warning=      |   ^~~~~~
  cargo:warning=      |   std::size_t
  cargo:warning=In file included from /usr/include/c++/10.3.1/cassert:43,
  cargo:warning=                 from libfuzzer/FuzzerInterceptors.cpp:27:
  cargo:warning=/usr/include/c++/10.3.1/x86_64-alpine-linux-musl/bits/c++config.h:264:26: note: 'std::size_t' declared here
  cargo:warning=  264 |   typedef __SIZE_TYPE__  size_t;
  cargo:warning=      |                          ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:109:9: error: expected ';' before 'len2'
  cargo:warning=  109 |   size_t len2 = internal_strlen(needle);
  cargo:warning=      |         ^~~~~
  cargo:warning=      |         ;
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:110:7: error: 'len1' was not declared in this scope
  cargo:warning=  110 |   if (len1 < len2)
  cargo:warning=      |       ^~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:110:14: error: 'len2' was not declared in this scope
  cargo:warning=  110 |   if (len1 < len2)
  cargo:warning=      |              ^~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:112:14: error: expected ';' before 'pos'
  cargo:warning=  112 |   for (size_t pos = 0; pos <= len1 - len2; pos++) {
  cargo:warning=      |              ^~~~
  cargo:warning=      |              ;
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:112:24: error: 'pos' was not declared in this scope
  cargo:warning=  112 |   for (size_t pos = 0; pos <= len1 - len2; pos++) {
  cargo:warning=      |                        ^~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:112:31: error: 'len1' was not declared in this scope
  cargo:warning=  112 |   for (size_t pos = 0; pos <= len1 - len2; pos++) {
  cargo:warning=      |                               ^~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:112:38: error: 'len2' was not declared in this scope
  cargo:warning=  112 |   for (size_t pos = 0; pos <= len1 - len2; pos++) {
  cargo:warning=      |                                      ^~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp: At global scope:
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:124:51: error: 'size_t' has not been declared
  cargo:warning=  124 |                                   const void *s2, size_t n, int result);
  cargo:warning=      |                                                   ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:126:52: error: 'size_t' has not been declared
  cargo:warning=  126 |                                    const char *s2, size_t n, int result);
  cargo:warning=      |                                                    ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:128:56: error: 'size_t' has not been declared
  cargo:warning=  128 |                                        const char *s2, size_t n, int result);
  cargo:warning=      |                                                        ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:137:68: error: 'size_t' has not been declared
  cargo:warning=  137 | void __sanitizer_weak_hook_memmem(void *called_pc, const void *s1, size_t len1,
  cargo:warning=      |                                                                    ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:138:51: error: 'size_t' has not been declared
  cargo:warning=  138 |                                   const void *s2, size_t len2, void *result);
  cargo:warning=      |                                                   ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:140:52: error: 'size_t' has not been declared
  cargo:warning=  140 | DEFINE_REAL(int, bcmp, const void *, const void *, size_t)
  cargo:warning=      |                                                    ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:22:39: note: in definition of macro 'DEFINE_REAL'
  cargo:warning=   22 |   typedef ret_type (*FUNC_TYPE(func))(__VA_ARGS__);                            \
  cargo:warning=      |                                       ^~~~~~~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:141:54: error: 'size_t' has not been declared
  cargo:warning=  141 | DEFINE_REAL(int, memcmp, const void *, const void *, size_t)
  cargo:warning=      |                                                      ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:22:39: note: in definition of macro 'DEFINE_REAL'
  cargo:warning=   22 |   typedef ret_type (*FUNC_TYPE(func))(__VA_ARGS__);                            \
  cargo:warning=      |                                       ^~~~~~~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:142:55: error: 'size_t' has not been declared
  cargo:warning=  142 | DEFINE_REAL(int, strncmp, const char *, const char *, size_t)
  cargo:warning=      |                                                       ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:22:39: note: in definition of macro 'DEFINE_REAL'
  cargo:warning=   22 |   typedef ret_type (*FUNC_TYPE(func))(__VA_ARGS__);                            \
  cargo:warning=      |                                       ^~~~~~~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:144:59: error: 'size_t' has not been declared
  cargo:warning=  144 | DEFINE_REAL(int, strncasecmp, const char *, const char *, size_t)
  cargo:warning=      |                                                           ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:22:39: note: in definition of macro 'DEFINE_REAL'
  cargo:warning=   22 |   typedef ret_type (*FUNC_TYPE(func))(__VA_ARGS__);                            \
  cargo:warning=      |                                       ^~~~~~~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:148:43: error: 'size_t' has not been declared
  cargo:warning=  148 | DEFINE_REAL(void *, memmem, const void *, size_t, const void *, size_t)
  cargo:warning=      |                                           ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:22:39: note: in definition of macro 'DEFINE_REAL'
  cargo:warning=   22 |   typedef ret_type (*FUNC_TYPE(func))(__VA_ARGS__);                            \
  cargo:warning=      |                                       ^~~~~~~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:148:65: error: 'size_t' has not been declared
  cargo:warning=  148 | DEFINE_REAL(void *, memmem, const void *, size_t, const void *, size_t)
  cargo:warning=      |                                                                 ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:22:39: note: in definition of macro 'DEFINE_REAL'
  cargo:warning=   22 |   typedef ret_type (*FUNC_TYPE(func))(__VA_ARGS__);                            \
  cargo:warning=      |                                       ^~~~~~~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:150:62: error: 'size_t' has not been declared
  cargo:warning=  150 | ATTRIBUTE_INTERFACE int bcmp(const char *s1, const char *s2, size_t n) {
  cargo:warning=      |                                                              ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:158:64: error: 'size_t' has not been declared
  cargo:warning=  158 | ATTRIBUTE_INTERFACE int memcmp(const void *s1, const void *s2, size_t n) {
  cargo:warning=      |                                                                ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:166:65: error: 'size_t' has not been declared
  cargo:warning=  166 | ATTRIBUTE_INTERFACE int strncmp(const char *s1, const char *s2, size_t n) {
  cargo:warning=      |                                                                 ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:182:69: error: 'size_t' has not been declared
  cargo:warning=  182 | ATTRIBUTE_INTERFACE int strncasecmp(const char *s1, const char *s2, size_t n) {
  cargo:warning=      |                                                                     ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:212:30: error: 'size_t' has not been declared
  cargo:warning=  212 | void *memmem(const void *s1, size_t len1, const void *s2, size_t len2) {
  cargo:warning=      |                              ^~~~~~
  cargo:warning=libfuzzer/FuzzerInterceptors.cpp:212:59: error: 'size_t' has not been declared
  cargo:warning=  212 | void *memmem(const void *s1, size_t len1, const void *s2, size_t len2) {
  cargo:warning=      |                                                           ^~~~~~
  exit status: 1

  --- stderr


  error occurred: Command "c++" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-Wall" "-Wextra" "-std=c++11" "-fno-omit-frame-pointer" "-w" "-o" "/home/rocket/Rocket_v0.5.0-rc.2/core/lib/fuzz/target/debug/build/libfuzzer-sys-6a0b651a20d3591b/out/libfuzzer/FuzzerInterceptors.o" "-c" "libfuzzer/FuzzerInterceptors.cpp" with args "c++" did not execute successfully (status code exit status: 1).

[kolbma]

After updating libfuzzer directory to the llvm branch release/13.x it can be compiled.

The only change is

$ diff -uw libfuzzer.20220120095225 libfuzzer
--- libfuzzer.20220120095225/FuzzerInterceptors.cpp
+++ libfuzzer/FuzzerInterceptors.cpp
@@ -25,6 +25,7 @@
   }
 
 #include <cassert>
+#include <cstddef> // for size_t
 #include <cstdint>
 #include <dlfcn.h> // for dlsym()

[fitzgen]

Happy to merge a PR that updates the vendored libfuzzer!