Merge "Add the UMOUNT_NOFOLLOW flag to <sys/mount.h>."
diff --git a/libc/dns/resolv/res_send.c b/libc/dns/resolv/res_send.c
index 6439e31..a8da3ac 100644
--- a/libc/dns/resolv/res_send.c
+++ b/libc/dns/resolv/res_send.c
@@ -402,6 +402,10 @@
}
if (statp->nscount == 0) {
+ // We have no nameservers configured, so there's no point trying.
+ // Tell the cache the query failed, or any retries and anyone else asking the same
+ // question will block for PENDING_REQUEST_TIMEOUT seconds instead of failing fast.
+ _resolv_cache_query_failed(statp->netid, buf, buflen);
errno = ESRCH;
return (-1);
}
diff --git a/linker/Android.mk b/linker/Android.mk
index 54535fc..0ab0fda 100644
--- a/linker/Android.mk
+++ b/linker/Android.mk
@@ -6,7 +6,7 @@
debugger.cpp \
dlfcn.cpp \
linker.cpp \
- linker_allocator.cpp \
+ linker_block_allocator.cpp \
linker_environ.cpp \
linker_libc_support.c \
linker_phdr.cpp \
diff --git a/linker/linker.cpp b/linker/linker.cpp
index 593785b..ea7d637 100644
--- a/linker/linker.cpp
+++ b/linker/linker.cpp
@@ -50,7 +50,7 @@
#include "private/UniquePtr.h"
#include "linker.h"
-#include "linker_allocator.h"
+#include "linker_block_allocator.h"
#include "linker_debug.h"
#include "linker_environ.h"
#include "linker_leb128.h"
@@ -92,8 +92,8 @@
static ElfW(Addr) get_elf_exec_load_bias(const ElfW(Ehdr)* elf);
-static LinkerAllocator<soinfo> g_soinfo_allocator;
-static LinkerAllocator<LinkedListEntry<soinfo>> g_soinfo_links_allocator;
+static LinkerTypeAllocator<soinfo> g_soinfo_allocator;
+static LinkerTypeAllocator<LinkedListEntry<soinfo>> g_soinfo_links_allocator;
static soinfo* solist;
static soinfo* sonext;
diff --git a/linker/linker_allocator.cpp b/linker/linker_block_allocator.cpp
similarity index 81%
rename from linker/linker_allocator.cpp
rename to linker/linker_block_allocator.cpp
index ac11b97..fc9a75b 100644
--- a/linker/linker_allocator.cpp
+++ b/linker/linker_block_allocator.cpp
@@ -14,7 +14,7 @@
* limitations under the License.
*/
-#include "linker_allocator.h"
+#include "linker_block_allocator.h"
#include <inttypes.h>
#include <string.h>
#include <sys/mman.h>
@@ -22,9 +22,9 @@
#include "private/bionic_prctl.h"
-struct LinkerAllocatorPage {
- LinkerAllocatorPage* next;
- uint8_t bytes[PAGE_SIZE-sizeof(LinkerAllocatorPage*)];
+struct LinkerBlockAllocatorPage {
+ LinkerBlockAllocatorPage* next;
+ uint8_t bytes[PAGE_SIZE-sizeof(LinkerBlockAllocatorPage*)];
};
struct FreeBlockInfo {
@@ -64,7 +64,7 @@
return;
}
- LinkerAllocatorPage* page = find_page(block);
+ LinkerBlockAllocatorPage* page = find_page(block);
if (page == nullptr) {
abort();
@@ -87,7 +87,7 @@
}
void LinkerBlockAllocator::protect_all(int prot) {
- for (LinkerAllocatorPage* page = page_list_; page != nullptr; page = page->next) {
+ for (LinkerBlockAllocatorPage* page = page_list_; page != nullptr; page = page->next) {
if (mprotect(page, PAGE_SIZE, prot) == -1) {
abort();
}
@@ -95,8 +95,9 @@
}
void LinkerBlockAllocator::create_new_page() {
- LinkerAllocatorPage* page = reinterpret_cast<LinkerAllocatorPage*>(mmap(nullptr, PAGE_SIZE,
- PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0));
+ LinkerBlockAllocatorPage* page = reinterpret_cast<LinkerBlockAllocatorPage*>(
+ mmap(nullptr, PAGE_SIZE, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0));
+
if (page == MAP_FAILED) {
abort(); // oom
}
@@ -107,7 +108,7 @@
FreeBlockInfo* first_block = reinterpret_cast<FreeBlockInfo*>(page->bytes);
first_block->next_block = free_block_list_;
- first_block->num_free_blocks = (PAGE_SIZE - sizeof(LinkerAllocatorPage*))/block_size_;
+ first_block->num_free_blocks = (PAGE_SIZE - sizeof(LinkerBlockAllocatorPage*))/block_size_;
free_block_list_ = first_block;
@@ -115,12 +116,12 @@
page_list_ = page;
}
-LinkerAllocatorPage* LinkerBlockAllocator::find_page(void* block) {
+LinkerBlockAllocatorPage* LinkerBlockAllocator::find_page(void* block) {
if (block == nullptr) {
abort();
}
- LinkerAllocatorPage* page = page_list_;
+ LinkerBlockAllocatorPage* page = page_list_;
while (page != nullptr) {
const uint8_t* page_ptr = reinterpret_cast<const uint8_t*>(page);
if (block >= (page_ptr + sizeof(page->next)) && block < (page_ptr + PAGE_SIZE)) {
diff --git a/linker/linker_allocator.h b/linker/linker_block_allocator.h
similarity index 87%
rename from linker/linker_allocator.h
rename to linker/linker_block_allocator.h
index 5d3563f..1d41806 100644
--- a/linker/linker_allocator.h
+++ b/linker/linker_block_allocator.h
@@ -21,7 +21,7 @@
#include <limits.h>
#include "private/bionic_macros.h"
-struct LinkerAllocatorPage;
+struct LinkerBlockAllocatorPage;
/*
* This class is a non-template version of the LinkerAllocator
@@ -40,10 +40,10 @@
private:
void create_new_page();
- LinkerAllocatorPage* find_page(void* block);
+ LinkerBlockAllocatorPage* find_page(void* block);
size_t block_size_;
- LinkerAllocatorPage* page_list_;
+ LinkerBlockAllocatorPage* page_list_;
void* free_block_list_;
DISALLOW_COPY_AND_ASSIGN(LinkerBlockAllocator);
@@ -57,14 +57,15 @@
* anonymous mmaps.
*/
template<typename T>
-class LinkerAllocator {
+class LinkerTypeAllocator {
public:
- LinkerAllocator() : block_allocator_(sizeof(T)) {}
+ LinkerTypeAllocator() : block_allocator_(sizeof(T)) {}
T* alloc() { return reinterpret_cast<T*>(block_allocator_.alloc()); }
void free(T* t) { block_allocator_.free(t); }
void protect_all(int prot) { block_allocator_.protect_all(prot); }
private:
LinkerBlockAllocator block_allocator_;
- DISALLOW_COPY_AND_ASSIGN(LinkerAllocator);
+ DISALLOW_COPY_AND_ASSIGN(LinkerTypeAllocator);
};
+
#endif // __LINKER_ALLOCATOR_H
diff --git a/linker/tests/Android.mk b/linker/tests/Android.mk
index aa9491e..9a08bec 100644
--- a/linker/tests/Android.mk
+++ b/linker/tests/Android.mk
@@ -28,7 +28,7 @@
LOCAL_SRC_FILES := \
linked_list_test.cpp \
- linker_allocator_test.cpp \
- ../linker_allocator.cpp
+ linker_block_allocator_test.cpp \
+ ../linker_block_allocator.cpp
include $(BUILD_NATIVE_TEST)
diff --git a/linker/tests/linker_allocator_test.cpp b/linker/tests/linker_block_allocator_test.cpp
similarity index 92%
rename from linker/tests/linker_allocator_test.cpp
rename to linker/tests/linker_block_allocator_test.cpp
index 9292a05..3ef0f36 100644
--- a/linker/tests/linker_allocator_test.cpp
+++ b/linker/tests/linker_block_allocator_test.cpp
@@ -20,7 +20,7 @@
#include <gtest/gtest.h>
-#include "../linker_allocator.h"
+#include "../linker_block_allocator.h"
#include <unistd.h>
@@ -49,7 +49,7 @@
};
TEST(linker_allocator, test_nominal) {
- LinkerAllocator<test_struct_nominal> allocator;
+ LinkerTypeAllocator<test_struct_nominal> allocator;
test_struct_nominal* ptr1 = allocator.alloc();
ASSERT_TRUE(ptr1 != nullptr);
@@ -65,7 +65,7 @@
}
TEST(linker_allocator, test_small) {
- LinkerAllocator<test_struct_small> allocator;
+ LinkerTypeAllocator<test_struct_small> allocator;
char* ptr1 = reinterpret_cast<char*>(allocator.alloc());
char* ptr2 = reinterpret_cast<char*>(allocator.alloc());
@@ -76,7 +76,7 @@
}
TEST(linker_allocator, test_larger) {
- LinkerAllocator<test_struct_larger> allocator;
+ LinkerTypeAllocator<test_struct_larger> allocator;
test_struct_larger* ptr1 = allocator.alloc();
test_struct_larger* ptr2 = allocator.alloc();
@@ -99,7 +99,7 @@
}
static void protect_all() {
- LinkerAllocator<test_struct_larger> allocator;
+ LinkerTypeAllocator<test_struct_larger> allocator;
// number of allocs to reach the end of first page
size_t n = kPageSize/sizeof(test_struct_larger) - 1;