| /tags/0.3.0/uspace/lib/libc/arch/ia32/src/setjmp.S |
|---|
| 0,0 → 1,57 |
| # |
| # Copyright (c) 2008 Josef Cejka |
| # 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. |
| # |
| #include <kernel/arch/context_offset.h> |
| .text |
| .global setjmp |
| .global longjmp |
| .type setjmp,@function |
| setjmp: |
| movl 0(%esp),%eax # save pc value into eax |
| movl 4(%esp),%edx # address of the jmp_buf structure to save context to |
| # save registers to the jmp_buf structure |
| CONTEXT_SAVE_ARCH_CORE %edx %eax |
| xorl %eax,%eax # set_jmp returns 0 |
| ret |
| .type longjmp,@function |
| longjmp: |
| movl 4(%esp), %ecx # put address of jmp_buf into ecx |
| movl 8(%esp), %eax # put return value into eax |
| # restore registers from the jmp_buf structure |
| CONTEXT_RESTORE_ARCH_CORE %ecx %edx |
| movl %edx,0(%esp) # put saved pc on stack |
| ret |
| /tags/0.3.0/uspace/lib/libc/arch/ia32/src/fibril.S |
|---|
| 0,0 → 1,79 |
| # |
| # 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. |
| # |
| #include <kernel/arch/context_offset.h> |
| .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 context variable to save context to |
| # save registers to the context structure |
| CONTEXT_SAVE_ARCH_CORE %edx %eax |
| # Save TLS |
| movl %gs:0, %eax |
| movl %eax, OFFSET_TLS(%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 context variable to restore context from |
| # restore registers from the context structure |
| CONTEXT_RESTORE_ARCH_CORE %eax %edx |
| movl %edx,0(%esp) # ctx->pc -> saver's return %eip |
| # Set thread local storage |
| pushl %edx |
| movl OFFSET_TLS(%eax), %edx # Set arg1 to TLS addr |
| movl $1, %eax # Syscall SYS_TLS_SET |
| int $0x30 |
| popl %edx |
| xorl %eax,%eax # context_restore returns 0 |
| ret |
| /tags/0.3.0/uspace/lib/libc/arch/ia32/src/syscall.S |
|---|
| 0,0 → 1,56 |
| # |
| # Copyright (c) 2007 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 |
| /** Syscall wrapper. |
| * |
| * Mind the order of arguments. First two arguments and the syscall number go to |
| * scratch registers. An optimized version of this wrapper for fewer arguments |
| * could benefit from this and not save unused registers on the stack. |
| */ |
| .global __syscall |
| __syscall: |
| pushl %ebx |
| pushl %esi |
| pushl %edi |
| pushl %ebp |
| movl 20(%esp), %edx # First argument. |
| movl 24(%esp), %ecx # Second argument. |
| movl 28(%esp), %ebx # Third argument. |
| movl 32(%esp), %esi # Fourth argument. |
| movl 36(%esp), %edi # Fifth argument. |
| movl 40(%esp), %ebp # Sixth argument. |
| movl 44(%esp), %eax # Syscall number. |
| int $0x30 |
| popl %ebp |
| popl %edi |
| popl %esi |
| popl %ebx |
| ret |
| /tags/0.3.0/uspace/lib/libc/arch/ia32/src/tls.c |
|---|
| 0,0 → 1,51 |
| /* |
| * Copyright (c) 2006 Ondrej Palkovsky |
| * 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 libcamd64 amd64 |
| * @ingroup lc |
| * @{ |
| */ |
| /** @file |
| * @ingroup libcia32 |
| */ |
| #include <tls.h> |
| #include <sys/types.h> |
| tcb_t * __alloc_tls(void **data, size_t size) |
| { |
| return tls_alloc_variant_2(data, size); |
| } |
| void __free_tls_arch(tcb_t *tcb, size_t size) |
| { |
| tls_free_variant_2(tcb, size); |
| } |
| /** @} |
| */ |
| /tags/0.3.0/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 |
| /tags/0.3.0/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 |