l4/pkg/libc_backends/lib/sig/lib/ARCH-amd64/arch.h

   1 /*
   2  * (c) 2009 Adam Lackorzynski <adam@os.inf.tu-dresden.de>
   3  *     economic rights: Technische Universität Dresden (Germany)
   4  * This file is part of TUD:OS and distributed under the terms of the
   5  * GNU Lesser General Public License 2.1.
   6  * Please see the COPYING-LGPL-2.1 file for details.
   7  */
   8 #pragma once
   9
  10 #include <ucontext.h>
  11 #include <sys/ucontext.h>
  12 #include <stdio.h>
  13
  14 static inline
  15 void fill_ucontext_frame(ucontext_t *ucf, l4_exc_regs_t *ue)
  16 {
  17   ucf->uc_mcontext.gregs[REG_R15]    = ue->r15;
  18   ucf->uc_mcontext.gregs[REG_R14]    = ue->r14;
  19   ucf->uc_mcontext.gregs[REG_R13]    = ue->r13;
  20   ucf->uc_mcontext.gregs[REG_R12]    = ue->r12;
  21   ucf->uc_mcontext.gregs[REG_R11]    = ue->r11;
  22   ucf->uc_mcontext.gregs[REG_R10]    = ue->r10;
  23   ucf->uc_mcontext.gregs[REG_R9]     = ue->r9;
  24   ucf->uc_mcontext.gregs[REG_R8]     = ue->r8;
  25   ucf->uc_mcontext.gregs[REG_RDI]    = ue->rdi;
  26   ucf->uc_mcontext.gregs[REG_RSI]    = ue->rsi;
  27   ucf->uc_mcontext.gregs[REG_RBP]    = ue->rbp;
  28   ucf->uc_mcontext.gregs[REG_RBX]    = ue->rbx;
  29   ucf->uc_mcontext.gregs[REG_RDX]    = ue->rdx;
  30   ucf->uc_mcontext.gregs[REG_RCX]    = ue->rcx;
  31   ucf->uc_mcontext.gregs[REG_RAX]    = ue->rax;
  32
  33   ucf->uc_mcontext.gregs[REG_TRAPNO] = ue->trapno;
  34   ucf->uc_mcontext.gregs[REG_ERR]    = ue->err;
  35   ucf->uc_mcontext.gregs[REG_CR2]    = ue->pfa;
  36
  37   ucf->uc_mcontext.gregs[REG_RIP]    = ue->ip;
  38   ucf->uc_mcontext.gregs[REG_EFL]    = ue->flags;
  39   ucf->uc_mcontext.gregs[REG_RSP]    = ue->sp;
  40 }
  41
  42 static inline
  43 void fill_utcb_exc(l4_exc_regs_t *ue, ucontext_t *ucf)
  44 {
  45   ue->r15    = ucf->uc_mcontext.gregs[REG_R15];
  46   ue->r14    = ucf->uc_mcontext.gregs[REG_R14];
  47   ue->r13    = ucf->uc_mcontext.gregs[REG_R13];
  48   ue->r12    = ucf->uc_mcontext.gregs[REG_R12];
  49   ue->r11    = ucf->uc_mcontext.gregs[REG_R11];
  50   ue->r10    = ucf->uc_mcontext.gregs[REG_R10];
  51   ue->r9     = ucf->uc_mcontext.gregs[REG_R9];
  52   ue->r8     = ucf->uc_mcontext.gregs[REG_R8];
  53   ue->rdi    = ucf->uc_mcontext.gregs[REG_RDI];
  54   ue->rsi    = ucf->uc_mcontext.gregs[REG_RSI];
  55   ue->rbp    = ucf->uc_mcontext.gregs[REG_RBP];
  56   ue->rbx    = ucf->uc_mcontext.gregs[REG_RBX];
  57   ue->rdx    = ucf->uc_mcontext.gregs[REG_RDX];
  58   ue->rcx    = ucf->uc_mcontext.gregs[REG_RCX];
  59   ue->rax    = ucf->uc_mcontext.gregs[REG_RAX];
  60
  61   ue->trapno = ucf->uc_mcontext.gregs[REG_TRAPNO];
  62   ue->err    = ucf->uc_mcontext.gregs[REG_ERR];
  63
  64   ue->sp     = ucf->uc_mcontext.gregs[REG_RSP];
  65   ue->ip     = ucf->uc_mcontext.gregs[REG_RIP];
  66   ue->flags  = ucf->uc_mcontext.gregs[REG_EFL];
  67 }
  68
  69 static inline
  70 void show_regs(l4_exc_regs_t *u)
  71 {
  72   printf("Exception: State:  Trap=%ld\n", u->trapno);
  73   printf("Want more? Code it...\n");
  74 }