[compiler-rt] Fix purecap compilation for CheriBSD

This commit fixes type mismatches between uptr and usize.

Author: RoundofThree

compiler-rt/lib/sanitizer_common/sanitizer_allocator.cpp

@@ -84,7 +84,7 @@ static void NORETURN ReportInternalAllocatorOutOfMemory(uptr requested_size) {
   Die();
 }
 
-void *InternalAlloc(uptr size, InternalAllocatorCache *cache, usize alignment) {
+void *InternalAlloc(usize size, InternalAllocatorCache *cache, usize alignment) {
   void *p = RawInternalAlloc(size, cache, alignment);
   if (UNLIKELY(!p))
     ReportInternalAllocatorOutOfMemory(size);

compiler-rt/lib/sanitizer_common/sanitizer_common.cpp

@@ -308,7 +308,7 @@ usize ReadBinaryNameCached(/*out*/char *buf, usize buf_len) {
   return name_len;
 }
 
-uptr ReadBinaryDir(/*out*/ char *buf, uptr buf_len) {
+usize ReadBinaryDir(/*out*/ char *buf, usize buf_len) {
   ReadBinaryNameCached(buf, buf_len);
   const char *exec_name_pos = StripModuleName(buf);
   uptr name_len = exec_name_pos - buf;

compiler-rt/lib/sanitizer_common/sanitizer_libc.h

@@ -29,11 +29,11 @@ extern "C" {
 // In normal runtime code, use the __sanitizer::internal_X() aliases instead.
 SANITIZER_INTERFACE_ATTRIBUTE void *__sanitizer_internal_memcpy(void *dest,
                                                                 const void *src,
-                                                                uptr n);
+                                                                usize n);
 SANITIZER_INTERFACE_ATTRIBUTE void *__sanitizer_internal_memmove(
-    void *dest, const void *src, uptr n);
+    void *dest, const void *src, usize n);
 SANITIZER_INTERFACE_ATTRIBUTE void *__sanitizer_internal_memset(void *s, int c,
-                                                                uptr n);
+                                                                usize n);
 }  // extern "C"
 
 // String functions

compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp

@@ -233,11 +233,11 @@ uptr internal_mremap(void *old_address, usize old_size, usize new_size, int flag
 }
 #endif
 
-int internal_mprotect(void *addr, uptr length, int prot) {
+int internal_mprotect(void *addr, usize length, int prot) {
   return internal_syscall(SYSCALL(mprotect), (uptr)addr, length, prot);
 }
 
-int internal_madvise(uptr addr, uptr length, int advice) {
+int internal_madvise(uptr addr, usize length, int advice) {
   return internal_syscall(SYSCALL(madvise), addr, length, advice);
 }
 
@@ -480,7 +480,7 @@ usize internal_dup2(int oldfd, int newfd) {
 #endif
 }
 
-usize internal_readlink(const char *path, char *buf, uptr bufsize) {
+usize internal_readlink(const char *path, char *buf, usize bufsize) {
 #    if SANITIZER_LINUX
   return internal_syscall(SYSCALL(readlinkat), AT_FDCWD, (uptr)path, (uptr)buf,
                           bufsize);
@@ -1172,7 +1172,7 @@ usize GetPageSize() {
 }
 #endif // !SANITIZER_ANDROID
 
-uptr ReadBinaryName(/*out*/char *buf, uptr buf_len) {
+usize ReadBinaryName(/*out*/char *buf, usize buf_len) {
 #if SANITIZER_SOLARIS
   const char *default_module_name = getexecname();
   CHECK_NE(default_module_name, NULL);

compiler-rt/lib/sanitizer_common/sanitizer_procmaps_bsd.cpp

@@ -40,7 +40,7 @@
 namespace __sanitizer {
 
 #if SANITIZER_FREEBSD
-void GetMemoryProfile(fill_profile_f cb, uptr *stats) {
+void GetMemoryProfile(fill_profile_f cb, usize *stats) {
   const int Mib[] = {
     CTL_KERN,
     KERN_PROC,