bionic/semaphore.c \
bionic/send.c \
bionic/setegid.c \
- bionic/__set_errno.c \
bionic/seteuid.c \
bionic/setpgrp.c \
bionic/setresuid.c \
bionic/__memcpy_chk.cpp \
bionic/__memmove_chk.cpp \
bionic/__memset_chk.cpp \
+ bionic/__set_errno.cpp \
bionic/setlocale.cpp \
bionic/__strcat_chk.cpp \
bionic/__strcpy_chk.cpp \
#include <errno.h>
+// These functions are called from our assembler syscall stubs.
+// C/C++ code should just assign 'errno' instead.
-int __set_errno(int n)
-{
- errno = n;
- return -1;
+// TODO: should be __LIBC_HIDDEN__, but already exported by NDK :-(
+// TODO: this isn't used on ARM.
+extern "C" int __set_errno(int n) {
+ errno = n;
+ return -1;
}
-/*
- * this function is called from syscall stubs,
- * (tail-called in the case of 0-4 arg versions)
- */
-
-__LIBC_HIDDEN__
-int __set_syscall_errno(int n)
-{
- /* some syscalls, mmap() for example, have valid return
- ** values that are "negative". Since errno values are not
- ** greater than 131 on Linux, we will just consider
- ** anything significantly out of range as not-an-error
- */
- if(n > -256) {
- return __set_errno(-n);
- } else {
- return n;
- }
+// TODO: this is only used on ARM, but is exported by NDK on all platforms :-(
+extern "C" __LIBC_HIDDEN__ int __set_syscall_errno(int n) {
+ // Some syscalls, mmap() for example, have valid return
+ // values that are "negative". Since errno values are not
+ // greater than 131 on Linux, we will just consider
+ // anything significantly out of range as not-an-error.
+ if(n > -256) {
+ return __set_errno(-n);
+ } else {
+ return n;
+ }
}
extern int __pthread_clone(int (*fn)(void*), void *child_stack, int flags, void *arg);
extern void _exit_with_stack_teardown(void * stackBase, int stackSize, int retCode);
extern void _exit_thread(int retCode);
-extern int __set_errno(int);
int __futex_wake_ex(volatile void *ftx, int pshared, int val)
{
#define ENOTSUP EOPNOTSUPP
#endif
-/* internal function that should *only* be called from system calls */
-/* use errno = xxxx instead in C code */
-extern int __set_errno(int error);
-
/* internal function returning the address of the thread-specific errno */
extern volatile int* __errno(void);