diff options
Diffstat (limited to 'com32/lib/syslinux/dsinfo.c')
| -rw-r--r-- | com32/lib/syslinux/dsinfo.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/com32/lib/syslinux/dsinfo.c b/com32/lib/syslinux/dsinfo.c new file mode 100644 index 00000000..6d77a0de --- /dev/null +++ b/com32/lib/syslinux/dsinfo.c @@ -0,0 +1,47 @@ +/* ----------------------------------------------------------------------- * + * + * Copyright 2008 H. Peter Anvin - All Rights Reserved + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom + * the Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall + * be included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * ----------------------------------------------------------------------- */ + +#include <syslinux/config.h> +#include <klibc/compiler.h> +#include <com32.h> + +union syslinux_derivative_info __syslinux_derivative_info; + +void __constructor __syslinux_get_derivative_info(void) +{ + static com32sys_t reg; + + reg.eax.w[0] = 0x000A; + __intcall(0x22, ®, ®); + + __syslinux_derivative_info.r.ax = reg.eax.w[0]; + __syslinux_derivative_info.r.cx = reg.ecx.w[0]; + __syslinux_derivative_info.r.dx = reg.edx.w[0]; + __syslinux_derivative_info.r.esbx = MK_PTR(reg.es, reg.ebx.w[0]); + __syslinux_derivative_info.r.fssi = MK_PTR(reg.fs, reg.esi.w[0]); + __syslinux_derivative_info.r.gsdi = MK_PTR(reg.gs, reg.edi.w[0]); +} |