Date: Mon, 15 Jun 2015 12:09:50 GMT From: mihai@FreeBSD.org To: svn-soc-all@FreeBSD.org Subject: socsvn commit: r287115 - soc2015/mihai/bhyve-on-arm-head/sys/arm/vexpress Message-ID: <201506151209.t5FC9oct068067@socsvn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: mihai Date: Mon Jun 15 12:09:49 2015 New Revision: 287115 URL: http://svnweb.FreeBSD.org/socsvn/?view=rev&rev=287115 Log: sys: arm: vexpress: add semihosting feature for EARLY printfs using special syscall 0x1234 Added: soc2015/mihai/bhyve-on-arm-head/sys/arm/vexpress/vexpress_semihosting.S soc2015/mihai/bhyve-on-arm-head/sys/arm/vexpress/vexpress_semihosting.h Added: soc2015/mihai/bhyve-on-arm-head/sys/arm/vexpress/vexpress_semihosting.S ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ soc2015/mihai/bhyve-on-arm-head/sys/arm/vexpress/vexpress_semihosting.S Mon Jun 15 12:09:49 2015 (r287115) @@ -0,0 +1,8 @@ + @ + @ Function for C code to make semihosting calls: + @ + .globl __semi_call +__semi_call: + svc 0x123456 + mov pc, lr + Added: soc2015/mihai/bhyve-on-arm-head/sys/arm/vexpress/vexpress_semihosting.h ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ soc2015/mihai/bhyve-on-arm-head/sys/arm/vexpress/vexpress_semihosting.h Mon Jun 15 12:09:49 2015 (r287115) @@ -0,0 +1,9 @@ +#ifndef SEMIHOSTING_H +#define SEMIHOSTING_H + +#define SYS_WRITE0 4 +#define SEMIHOSTING_SVC 0x123456 /* SVC comment field for semihosting */ + +int __semi_call(int id, ...); + +#endif /* ! SEMIHOSTING_H */
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201506151209.t5FC9oct068067>