| 0,0 → 1,98 |
|---|
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** @addtogroup rtld rtld |
| * @brief |
| * @{ |
| */ |
| /** |
| * @file |
| */ |
| |
| #include <sys/types.h> |
| #include <align.h> |
| #include <tls.h> |
| |
| void _putint(int i); |
| /* FIXME */ |
| void __udivdi3(void); |
| void __umoddi3(void); |
| |
| static void kputint(unsigned i) |
| { |
| unsigned dummy; |
| asm volatile ( |
| "movl $30, %%eax;" |
| "int $0x30" |
| : "=d" (dummy) /* output - %edx clobbered */ |
| : "d" (i) /* input */ |
| : "%eax","%ecx" /* all scratch registers clobbered */ |
| ); |
| } |
| |
| typedef struct { |
| unsigned long int ti_module; |
| unsigned long int ti_offset; |
| } tls_index; |
| |
| void __attribute__ ((__regparm__ (1))) |
| *___tls_get_addr(tls_index *ti); |
| |
| void __attribute__ ((__regparm__ (1))) |
| *___tls_get_addr(tls_index *ti) |
| { |
| size_t tls_size; |
| uint8_t *tls; |
| |
| /* Calculate size of TLS block */ |
| tls_size = ALIGN_UP(&_tbss_end - &_tdata_start, &_tls_alignment); |
| |
| /* The TLS block is just before TCB */ |
| tls = (uint8_t *)__tcb_get() - tls_size; |
| |
| return tls + ti->ti_offset; |
| } |
| |
| void __umoddi3(void) |
| { |
| kputint(0x101); |
| *(int *)0 = 0; /* cause a page fault */ |
| } |
| |
| void __udivdi3(void) |
| { |
| kputint(0x102); |
| *(int *)0 = 0; /* cause a page fault */ |
| } |
| |
| void _putint(int i) |
| { |
| } |
| |
| /** @} |
| */ |