hikey: Add UEFI sources for reference
UEFI needs to be built outside Android build system.
Please follow the instructions in README.
The sources correspond to:
https://github.com/96boards/edk2/commit/14eae0c12e71fd33c4c0fc51e4475e8db02566cf
https://github.com/96boards/arm-trusted-firmware/commit/e9b4909dcd75fc4ae7041cfb83d28ab9adb7afdf
https://github.com/96boards/l-loader/commit/6b784ad5c4ab00e2b1c6f53cd5f74054e5d00a78
https://git.linaro.org/uefi/uefi-tools.git/commit/abe618f8ab72034fff1ce46c9c006a2c6bd40a7e
Change-Id: Ieeefdb63e673e0c8e64e0a1f02c7bddc63b2c7fb
Signed-off-by: Vishal Bhoj <vishal.bhoj@linaro.org>
diff --git a/uefi/linaro-edk2/StdLib/Include/signal.h b/uefi/linaro-edk2/StdLib/Include/signal.h
new file mode 100644
index 0000000..26f8d6b
--- /dev/null
+++ b/uefi/linaro-edk2/StdLib/Include/signal.h
@@ -0,0 +1,86 @@
+/** @file
+ This file declares a type and two functions and defines several
+ macros, for handling various signals (conditions that may be reported during
+ program execution).
+
+ For historical reasons; programs expect signal to be declared
+ in <sys/signal.h>. The signal function is documented in <sys/signal.h>.
+
+ The signal function is declared in the C Standard as:<BR>
+ void (*signal(int sig, void (*func)(int)))(int);
+
+ The EDK II implementation of the library or base firmware does not generate
+ any of these signals, except as a result of explicit calls to the raise function.
+
+ Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
+ This program and the accompanying materials are licensed and made available under
+ the terms and conditions of the BSD License that accompanies this distribution.
+ The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+**/
+#ifndef _SIGNAL_H
+#define _SIGNAL_H
+#include <sys/EfiCdefs.h>
+#include <sys/signal.h>
+
+/* The type sig_atomic_t is the (possibly volatile-qualified) integer type of
+ an object that can be accessed as an atomic entity, even in the presence
+ of asynchronous interrupts.
+
+ This, possibly machine specific, type is defined in <machine/signal.h>.
+*/
+
+/** @{
+ The following three macros expand to constant expressions with distinct
+ values that have type compatible with the second argument to, and the
+ return value of, the signal function, and whose values compare unequal to
+ the address of any declarable function.
+**/
+#define SIG_IGN ((__sighandler_t *) 0)
+#define SIG_DFL ((__sighandler_t *) 1)
+#define SIG_ERR ((__sighandler_t *) 3)
+/*@}*/
+
+/** @{
+ The following macros expand to positive integer constant expressions with
+ type int and distinct values that are the signal numbers, each
+ corresponding to the specified condition.
+ The C95 specification requires these to be macros.
+**/
+#define SIGINT __SigInt ///< receipt of an interactive attention signal
+#define SIGILL __SigIll ///< detection of an invalid function image, such as an invalid instruction
+#define SIGABRT __SigAbrt ///< abnormal termination, such as is initiated by the abort function
+#define SIGFPE __SigFpe ///< an erroneous arithmetic operation, such as zero divide or an operation resulting in overflow
+#define SIGSEGV __SigSegv ///< an invalid access to storage
+#define SIGTERM __SigTerm ///< a termination request sent to the program
+#define SIGBREAK __SigBreak ///< added for Python
+#define SIGALRM __SigAlrm ///< Added for Posix timer functions
+#define SIGVTALRM __SigVtAlrm ///< Added for Posix timer functions
+#define SIGPROF __SigProf ///< Added for Posix timer functions
+#define SIGUSR1 __SigUsr1 ///< Added for Posix timer functions
+#define SIGUSR2 __SigUsr2 ///< Added for Posix timer functions
+#define SIGWINCH __SigWinch ///< Added for Posix timer functions
+#define SIGPIPE __SigPipe ///< Added for Posix timer functions
+#define SIGQUIT __SigQuit ///< Added for Posix timer functions
+#define SIG_LAST __Sig_Last ///< One more than the largest signal number
+/*@}*/
+
+__BEGIN_DECLS
+
+/** Send a signal.
+
+ The raise function carries out the actions described for signal,
+ in <sys/signal.h>, for the signal sig. If a signal handler is called, the
+ raise function does not return until after the signal handler does.
+
+ @return The raise function returns zero if successful,
+ or nonzero if unsuccessful.
+**/
+int raise(int sig);
+
+__END_DECLS
+
+#endif /* _SIGNAL_H */