| /trunk/uspace/lib/libc/arch/ia32/src/entry.s |
|---|
| 0,0 → 1,60 |
| # |
| # Copyright (c) 2005 Martin Decky |
| # 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. |
| # |
| .section .init, "ax" |
| .org 0 |
| .globl __entry |
| .globl __entry_driver |
| ## User-space task entry point |
| # |
| # |
| __entry: |
| mov %ss, %ax |
| mov %ax, %ds |
| mov %ax, %es |
| mov %ax, %fs |
| # Do not set %gs, it contains descriptor that can see TLS |
| call __main |
| call __io_init |
| call main |
| call __exit |
| __entry_driver: |
| mov %ss, %ax |
| mov %ax, %ds |
| mov %ax, %es |
| mov %ax, %fs |
| # Do not set %gs, it contains descriptor that can see TLS |
| call __main |
| call main |
| call __exit |
| /trunk/uspace/lib/libc/arch/ia32/src/thread_entry.s |
|---|
| 0,0 → 1,53 |
| # |
| # Copyright (c) 2006 Jakub Jermar |
| # 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. |
| # |
| .text |
| .globl __thread_entry |
| ## User-space thread entry point for all but the first threads. |
| # |
| # |
| __thread_entry: |
| mov %ss, %dx |
| mov %dx, %ds |
| mov %dx, %es |
| mov %dx, %fs |
| # Do not set %gs, it contains descriptor that can see TLS |
| # |
| # EAX contains address of uarg. |
| # |
| pushl %eax |
| call __thread_main |
| # |
| # Not reached. |
| # |
| .end __thread_entry |
| /trunk/uspace/lib/libc/arch/ia32/src/psthread.S |
|---|
| 0,0 → 1,84 |
| # |
| # Copyright (c) 2001-2004 Jakub Jermar |
| # 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. |
| # |
| .text |
| .global context_save |
| .global context_restore |
| ## Save current CPU context |
| # |
| # Save CPU context to the context_t variable |
| # pointed by the 1st argument. Returns 1 in EAX. |
| # |
| context_save: |
| movl 0(%esp),%eax # the caller's return %eip |
| movl 4(%esp),%edx # address of the kernel_context variable to save context to |
| movl %esp,0(%edx) # %esp -> ctx->sp |
| movl %eax,4(%edx) # %eip -> ctx->pc |
| movl %ebx,8(%edx) # %ebx -> ctx->ebx |
| movl %esi,12(%edx) # %esi -> ctx->esi |
| movl %edi,16(%edx) # %edi -> ctx->edi |
| movl %ebp,20(%edx) # %ebp -> ctx->ebp |
| # Save TLS |
| movl %gs:0, %eax |
| movl %eax, 24(%edx) # tls -> ctx->tls |
| xorl %eax,%eax # context_save returns 1 |
| incl %eax |
| ret |
| ## Restore saved CPU context |
| # |
| # Restore CPU context from context_t variable |
| # pointed by the 1st argument. Returns 0 in EAX. |
| # |
| context_restore: |
| movl 4(%esp),%eax # address of the kernel_context variable to restore context from |
| movl 0(%eax),%esp # ctx->sp -> %esp |
| movl 4(%eax),%edx # ctx->pc -> %edx |
| movl 8(%eax),%ebx # ctx->ebx -> %ebx |
| movl 12(%eax),%esi # ctx->esi -> %esi |
| movl 16(%eax),%edi # ctx->edi -> %edi |
| movl 20(%eax),%ebp # ctx->ebp -> %ebp |
| movl %edx,0(%esp) # ctx->pc -> saver's return %eip |
| # Set thread local storage |
| pushl %edi |
| movl 24(%eax), %eax # Set arg1 to TLS addr |
| movl $1, %edi # Syscall 1 |
| int $0x30 |
| popl %edi |
| xorl %eax,%eax # context_restore returns 0 |
| ret |
| /trunk/uspace/lib/libc/arch/ia32/src/syscall.c |
|---|
| 0,0 → 1,59 |
| /* |
| * Copyright (c) 2005 Martin Decky |
| * 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 libcia32 ia32 |
| * @brief ia32 architecture dependent parts of libc |
| * @ingroup lc |
| * @{ |
| */ |
| /** @file |
| */ |
| #include <thread.h> |
| #include <libc.h> |
| sysarg_t __syscall(const sysarg_t p1, const sysarg_t p2, const sysarg_t p3, |
| const sysarg_t p4, const syscall_t id) |
| { |
| sysarg_t ret; |
| asm volatile ( |
| "int $0x30\n" |
| : "=a" (ret) |
| : "a" (p1), |
| "c" (p2), |
| "d" (p3), |
| "S" (p4), |
| "D" (id) |
| ); |
| return ret; |
| } |
| /** @} |
| */ |
| /trunk/uspace/lib/libc/arch/ia32/src/thread.c |
|---|
| 0,0 → 1,0 |
| link ../../amd64/src/thread.c |
| Property changes: |
| Added: svn:special |
| +* |
| \ No newline at end of property |