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Add support for Semihosting v2 support for AArch64 in libgloss.

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Semihosting v2 changes are documented here:
https://developer.arm.com/docs/100863/latest/

The biggest change is the addition of an extensions mechanism
to add more extensions in the future.

Signed-off-by: Tamar Christina <tamar.christina@arm.com>
This commit is contained in:
Tamar Christina
2017-07-05 13:04:59 +01:00
committed by Corinna Vinschen
parent d7d6ad7b6b
commit ddb6f8a02a
4 changed files with 186 additions and 47 deletions
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78
libgloss/aarch64/svc.h
View File

@@ -23,37 +23,59 @@
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
#include <_ansi.h>
/* Now the SWI numbers and reason codes for RDI (Angel) monitors. */
#define AngelSVC 0xF000
#define AngelSVCInsn "hlt"
#define AngelSVCAsm hlt
#define AngelSVC 0xF000
#define AngelSVCInsn "hlt"
#define AngelSVCAsm hlt
/* The reason codes: */
#define AngelSVC_Reason_Open 0x01
#define AngelSVC_Reason_Close 0x02
#define AngelSVC_Reason_WriteC 0x03
#define AngelSVC_Reason_Write0 0x04
#define AngelSVC_Reason_Write 0x05
#define AngelSVC_Reason_Read 0x06
#define AngelSVC_Reason_ReadC 0x07
#define AngelSVC_Reason_IsTTY 0x09
#define AngelSVC_Reason_Seek 0x0A
#define AngelSVC_Reason_FLen 0x0C
#define AngelSVC_Reason_TmpNam 0x0D
#define AngelSVC_Reason_Remove 0x0E
#define AngelSVC_Reason_Rename 0x0F
#define AngelSVC_Reason_Clock 0x10
#define AngelSVC_Reason_Time 0x11
#define AngelSVC_Reason_System 0x12
#define AngelSVC_Reason_Errno 0x13
#define AngelSVC_Reason_GetCmdLine 0x15
#define AngelSVC_Reason_HeapInfo 0x16
#define AngelSVC_Reason_EnterSVC 0x17
#define AngelSVC_Reason_ReportException 0x18
#define AngelSVC_Reason_SyncCacheRange 0x19
#define AngelSVC_Reason_Elapsed 0x30
#define ADP_Stopped_ApplicationExit ((2 << 16) + 38)
#define ADP_Stopped_RunTimeError ((2 << 16) + 35)
#define AngelSVC_Reason_Open 0x01
#define AngelSVC_Reason_Close 0x02
#define AngelSVC_Reason_WriteC 0x03
#define AngelSVC_Reason_Write0 0x04
#define AngelSVC_Reason_Write 0x05
#define AngelSVC_Reason_Read 0x06
#define AngelSVC_Reason_ReadC 0x07
#define AngelSVC_Reason_IsError 0x08
#define AngelSVC_Reason_IsTTY 0x09
#define AngelSVC_Reason_Seek 0x0A
#define AngelSVC_Reason_FLen 0x0C
#define AngelSVC_Reason_TmpNam 0x0D
#define AngelSVC_Reason_Remove 0x0E
#define AngelSVC_Reason_Rename 0x0F
#define AngelSVC_Reason_Clock 0x10
#define AngelSVC_Reason_Time 0x11
#define AngelSVC_Reason_System 0x12
#define AngelSVC_Reason_Errno 0x13
#define AngelSVC_Reason_GetCmdLine 0x15
#define AngelSVC_Reason_HeapInfo 0x16
#define AngelSVC_Reason_EnterSVC 0x17
#define AngelSVC_Reason_ReportException 0x18
#define AngelSVC_Reason_SyncCacheRange 0x19
#define AngelSVC_Reason_ReportExceptionExtended 0x20
#define AngelSVC_Reason_Elapsed 0x30
#define AngelSVC_Reason_TickFreq 0x31
#define ADP_Stopped_ApplicationExit ((2 << 16) + 38)
#define ADP_Stopped_RunTimeError ((2 << 16) + 35)
/* Semihosting feature magic numbers. */
#define NUM_SHFB_MAGIC 4
#define SHFB_MAGIC_0 0x53
#define SHFB_MAGIC_1 0x48
#define SHFB_MAGIC_2 0x46
#define SHFB_MAGIC_3 0x42
/* Semihosting extensions. */
#define SH_EXT_EXIT_EXTENDED_BITNUM 0x0
#define SH_EXT_STDOUT_STDERR_BITNUM 0x1
#if !defined (__ASSEMBLER__)
extern int _get_semihosting_exts _PARAMS ((char*, int, int));
extern int _has_ext_exit_extended _PARAMS ((void));
extern int _has_ext_stdout_stderr _PARAMS ((void));
#endif
#if defined(ARM_RDI_MONITOR) && !defined(__ASSEMBLER__)