diff options
Diffstat (limited to 'gdb/symm-nat.c')
| -rw-r--r-- | gdb/symm-nat.c | 924 |
1 files changed, 497 insertions, 427 deletions
diff --git a/gdb/symm-nat.c b/gdb/symm-nat.c index 56e1c67..d1ad863 100644 --- a/gdb/symm-nat.c +++ b/gdb/symm-nat.c @@ -1,21 +1,22 @@ /* Sequent Symmetry host interface, for GDB when running under Unix. Copyright 1986, 1987, 1989, 1991, 1992, 1994 Free Software Foundation, Inc. -This file is part of GDB. + This file is part of GDB. -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ /* FIXME, some 387-specific items of use taken from i387-tdep.c -- ought to be merged back in. */ @@ -52,8 +53,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "gdbcore.h" void -store_inferior_registers(regno) -int regno; +store_inferior_registers (regno) + int regno; { struct pt_regset regs; int i; @@ -63,32 +64,32 @@ int regno; might cause problems when calling functions in the inferior. At least fpu_control and fpa_pcr (probably more) should be added to the registers array to solve this properly. */ - mptrace (XPT_RREGS, inferior_pid, (PTRACE_ARG3_TYPE) ®s, 0); - - regs.pr_eax = *(int *)®isters[REGISTER_BYTE(0)]; - regs.pr_ebx = *(int *)®isters[REGISTER_BYTE(5)]; - regs.pr_ecx = *(int *)®isters[REGISTER_BYTE(2)]; - regs.pr_edx = *(int *)®isters[REGISTER_BYTE(1)]; - regs.pr_esi = *(int *)®isters[REGISTER_BYTE(6)]; - regs.pr_edi = *(int *)®isters[REGISTER_BYTE(7)]; - regs.pr_esp = *(int *)®isters[REGISTER_BYTE(14)]; - regs.pr_ebp = *(int *)®isters[REGISTER_BYTE(15)]; - regs.pr_eip = *(int *)®isters[REGISTER_BYTE(16)]; - regs.pr_flags = *(int *)®isters[REGISTER_BYTE(17)]; + mptrace (XPT_RREGS, inferior_pid, (PTRACE_ARG3_TYPE) & regs, 0); + + regs.pr_eax = *(int *) ®isters[REGISTER_BYTE (0)]; + regs.pr_ebx = *(int *) ®isters[REGISTER_BYTE (5)]; + regs.pr_ecx = *(int *) ®isters[REGISTER_BYTE (2)]; + regs.pr_edx = *(int *) ®isters[REGISTER_BYTE (1)]; + regs.pr_esi = *(int *) ®isters[REGISTER_BYTE (6)]; + regs.pr_edi = *(int *) ®isters[REGISTER_BYTE (7)]; + regs.pr_esp = *(int *) ®isters[REGISTER_BYTE (14)]; + regs.pr_ebp = *(int *) ®isters[REGISTER_BYTE (15)]; + regs.pr_eip = *(int *) ®isters[REGISTER_BYTE (16)]; + regs.pr_flags = *(int *) ®isters[REGISTER_BYTE (17)]; for (i = 0; i < 31; i++) { regs.pr_fpa.fpa_regs[i] = - *(int *)®isters[REGISTER_BYTE(FP1_REGNUM+i)]; + *(int *) ®isters[REGISTER_BYTE (FP1_REGNUM + i)]; } - memcpy (regs.pr_fpu.fpu_stack[0], ®isters[REGISTER_BYTE(ST0_REGNUM)], 10); - memcpy (regs.pr_fpu.fpu_stack[1], ®isters[REGISTER_BYTE(ST1_REGNUM)], 10); - memcpy (regs.pr_fpu.fpu_stack[2], ®isters[REGISTER_BYTE(ST2_REGNUM)], 10); - memcpy (regs.pr_fpu.fpu_stack[3], ®isters[REGISTER_BYTE(ST3_REGNUM)], 10); - memcpy (regs.pr_fpu.fpu_stack[4], ®isters[REGISTER_BYTE(ST4_REGNUM)], 10); - memcpy (regs.pr_fpu.fpu_stack[5], ®isters[REGISTER_BYTE(ST5_REGNUM)], 10); - memcpy (regs.pr_fpu.fpu_stack[6], ®isters[REGISTER_BYTE(ST6_REGNUM)], 10); - memcpy (regs.pr_fpu.fpu_stack[7], ®isters[REGISTER_BYTE(ST7_REGNUM)], 10); - mptrace (XPT_WREGS, inferior_pid, (PTRACE_ARG3_TYPE) ®s, 0); + memcpy (regs.pr_fpu.fpu_stack[0], ®isters[REGISTER_BYTE (ST0_REGNUM)], 10); + memcpy (regs.pr_fpu.fpu_stack[1], ®isters[REGISTER_BYTE (ST1_REGNUM)], 10); + memcpy (regs.pr_fpu.fpu_stack[2], ®isters[REGISTER_BYTE (ST2_REGNUM)], 10); + memcpy (regs.pr_fpu.fpu_stack[3], ®isters[REGISTER_BYTE (ST3_REGNUM)], 10); + memcpy (regs.pr_fpu.fpu_stack[4], ®isters[REGISTER_BYTE (ST4_REGNUM)], 10); + memcpy (regs.pr_fpu.fpu_stack[5], ®isters[REGISTER_BYTE (ST5_REGNUM)], 10); + memcpy (regs.pr_fpu.fpu_stack[6], ®isters[REGISTER_BYTE (ST6_REGNUM)], 10); + memcpy (regs.pr_fpu.fpu_stack[7], ®isters[REGISTER_BYTE (ST7_REGNUM)], 10); + mptrace (XPT_WREGS, inferior_pid, (PTRACE_ARG3_TYPE) & regs, 0); } void @@ -100,240 +101,287 @@ fetch_inferior_registers (regno) registers_fetched (); - mptrace (XPT_RREGS, inferior_pid, (PTRACE_ARG3_TYPE) ®s, 0); - *(int *)®isters[REGISTER_BYTE(EAX_REGNUM)] = regs.pr_eax; - *(int *)®isters[REGISTER_BYTE(EBX_REGNUM)] = regs.pr_ebx; - *(int *)®isters[REGISTER_BYTE(ECX_REGNUM)] = regs.pr_ecx; - *(int *)®isters[REGISTER_BYTE(EDX_REGNUM)] = regs.pr_edx; - *(int *)®isters[REGISTER_BYTE(ESI_REGNUM)] = regs.pr_esi; - *(int *)®isters[REGISTER_BYTE(EDI_REGNUM)] = regs.pr_edi; - *(int *)®isters[REGISTER_BYTE(EBP_REGNUM)] = regs.pr_ebp; - *(int *)®isters[REGISTER_BYTE(ESP_REGNUM)] = regs.pr_esp; - *(int *)®isters[REGISTER_BYTE(EIP_REGNUM)] = regs.pr_eip; - *(int *)®isters[REGISTER_BYTE(EFLAGS_REGNUM)] = regs.pr_flags; + mptrace (XPT_RREGS, inferior_pid, (PTRACE_ARG3_TYPE) & regs, 0); + *(int *) ®isters[REGISTER_BYTE (EAX_REGNUM)] = regs.pr_eax; + *(int *) ®isters[REGISTER_BYTE (EBX_REGNUM)] = regs.pr_ebx; + *(int *) ®isters[REGISTER_BYTE (ECX_REGNUM)] = regs.pr_ecx; + *(int *) ®isters[REGISTER_BYTE (EDX_REGNUM)] = regs.pr_edx; + *(int *) ®isters[REGISTER_BYTE (ESI_REGNUM)] = regs.pr_esi; + *(int *) ®isters[REGISTER_BYTE (EDI_REGNUM)] = regs.pr_edi; + *(int *) ®isters[REGISTER_BYTE (EBP_REGNUM)] = regs.pr_ebp; + *(int *) ®isters[REGISTER_BYTE (ESP_REGNUM)] = regs.pr_esp; + *(int *) ®isters[REGISTER_BYTE (EIP_REGNUM)] = regs.pr_eip; + *(int *) ®isters[REGISTER_BYTE (EFLAGS_REGNUM)] = regs.pr_flags; for (i = 0; i < FPA_NREGS; i++) { - *(int *)®isters[REGISTER_BYTE(FP1_REGNUM+i)] = + *(int *) ®isters[REGISTER_BYTE (FP1_REGNUM + i)] = regs.pr_fpa.fpa_regs[i]; } - memcpy (®isters[REGISTER_BYTE(ST0_REGNUM)], regs.pr_fpu.fpu_stack[0], 10); - memcpy (®isters[REGISTER_BYTE(ST1_REGNUM)], regs.pr_fpu.fpu_stack[1], 10); - memcpy (®isters[REGISTER_BYTE(ST2_REGNUM)], regs.pr_fpu.fpu_stack[2], 10); - memcpy (®isters[REGISTER_BYTE(ST3_REGNUM)], regs.pr_fpu.fpu_stack[3], 10); - memcpy (®isters[REGISTER_BYTE(ST4_REGNUM)], regs.pr_fpu.fpu_stack[4], 10); - memcpy (®isters[REGISTER_BYTE(ST5_REGNUM)], regs.pr_fpu.fpu_stack[5], 10); - memcpy (®isters[REGISTER_BYTE(ST6_REGNUM)], regs.pr_fpu.fpu_stack[6], 10); - memcpy (®isters[REGISTER_BYTE(ST7_REGNUM)], regs.pr_fpu.fpu_stack[7], 10); + memcpy (®isters[REGISTER_BYTE (ST0_REGNUM)], regs.pr_fpu.fpu_stack[0], 10); + memcpy (®isters[REGISTER_BYTE (ST1_REGNUM)], regs.pr_fpu.fpu_stack[1], 10); + memcpy (®isters[REGISTER_BYTE (ST2_REGNUM)], regs.pr_fpu.fpu_stack[2], 10); + memcpy (®isters[REGISTER_BYTE (ST3_REGNUM)], regs.pr_fpu.fpu_stack[3], 10); + memcpy (®isters[REGISTER_BYTE (ST4_REGNUM)], regs.pr_fpu.fpu_stack[4], 10); + memcpy (®isters[REGISTER_BYTE (ST5_REGNUM)], regs.pr_fpu.fpu_stack[5], 10); + memcpy (®isters[REGISTER_BYTE (ST6_REGNUM)], regs.pr_fpu.fpu_stack[6], 10); + memcpy (®isters[REGISTER_BYTE (ST7_REGNUM)], regs.pr_fpu.fpu_stack[7], 10); } /* FIXME: This should be merged with i387-tdep.c as well. */ static -print_fpu_status(ep) -struct pt_regset ep; +print_fpu_status (ep) + struct pt_regset ep; { - int i; - int bothstatus; - int top; - int fpreg; - unsigned char *p; - - printf_unfiltered("80387:"); - if (ep.pr_fpu.fpu_ip == 0) { - printf_unfiltered(" not in use.\n"); - return; - } else { - printf_unfiltered("\n"); + int i; + int bothstatus; + int top; + int fpreg; + unsigned char *p; + + printf_unfiltered ("80387:"); + if (ep.pr_fpu.fpu_ip == 0) + { + printf_unfiltered (" not in use.\n"); + return; } - if (ep.pr_fpu.fpu_status != 0) { - print_387_status_word (ep.pr_fpu.fpu_status); + else + { + printf_unfiltered ("\n"); + } + if (ep.pr_fpu.fpu_status != 0) + { + print_387_status_word (ep.pr_fpu.fpu_status); } - print_387_control_word (ep.pr_fpu.fpu_control); - printf_unfiltered ("last exception: "); - printf_unfiltered ("opcode 0x%x; ", ep.pr_fpu.fpu_rsvd4); - printf_unfiltered ("pc 0x%x:0x%x; ", ep.pr_fpu.fpu_cs, ep.pr_fpu.fpu_ip); - printf_unfiltered ("operand 0x%x:0x%x\n", ep.pr_fpu.fpu_data_offset, ep.pr_fpu.fpu_op_sel); - - top = (ep.pr_fpu.fpu_status >> 11) & 7; - - printf_unfiltered ("regno tag msb lsb value\n"); - for (fpreg = 7; fpreg >= 0; fpreg--) + print_387_control_word (ep.pr_fpu.fpu_control); + printf_unfiltered ("last exception: "); + printf_unfiltered ("opcode 0x%x; ", ep.pr_fpu.fpu_rsvd4); + printf_unfiltered ("pc 0x%x:0x%x; ", ep.pr_fpu.fpu_cs, ep.pr_fpu.fpu_ip); + printf_unfiltered ("operand 0x%x:0x%x\n", ep.pr_fpu.fpu_data_offset, ep.pr_fpu.fpu_op_sel); + + top = (ep.pr_fpu.fpu_status >> 11) & 7; + + printf_unfiltered ("regno tag msb lsb value\n"); + for (fpreg = 7; fpreg >= 0; fpreg--) + { + double val; + + printf_unfiltered ("%s %d: ", fpreg == top ? "=>" : " ", fpreg); + + switch ((ep.pr_fpu.fpu_tag >> (fpreg * 2)) & 3) { - double val; - - printf_unfiltered ("%s %d: ", fpreg == top ? "=>" : " ", fpreg); - - switch ((ep.pr_fpu.fpu_tag >> (fpreg * 2)) & 3) - { - case 0: printf_unfiltered ("valid "); break; - case 1: printf_unfiltered ("zero "); break; - case 2: printf_unfiltered ("trap "); break; - case 3: printf_unfiltered ("empty "); break; - } - for (i = 9; i >= 0; i--) - printf_unfiltered ("%02x", ep.pr_fpu.fpu_stack[fpreg][i]); - - i387_to_double ((char *)ep.pr_fpu.fpu_stack[fpreg], (char *)&val); - printf_unfiltered (" %g\n", val); + case 0: + printf_unfiltered ("valid "); + break; + case 1: + printf_unfiltered ("zero "); + break; + case 2: + printf_unfiltered ("trap "); + break; + case 3: + printf_unfiltered ("empty "); + break; } - if (ep.pr_fpu.fpu_rsvd1) - warning ("rsvd1 is 0x%x\n", ep.pr_fpu.fpu_rsvd1); - if (ep.pr_fpu.fpu_rsvd2) - warning ("rsvd2 is 0x%x\n", ep.pr_fpu.fpu_rsvd2); - if (ep.pr_fpu.fpu_rsvd3) - warning ("rsvd3 is 0x%x\n", ep.pr_fpu.fpu_rsvd3); - if (ep.pr_fpu.fpu_rsvd5) - warning ("rsvd5 is 0x%x\n", ep.pr_fpu.fpu_rsvd5); + for (i = 9; i >= 0; i--) + printf_unfiltered ("%02x", ep.pr_fpu.fpu_stack[fpreg][i]); + + i387_to_double ((char *) ep.pr_fpu.fpu_stack[fpreg], (char *) &val); + printf_unfiltered (" %g\n", val); + } + if (ep.pr_fpu.fpu_rsvd1) + warning ("rsvd1 is 0x%x\n", ep.pr_fpu.fpu_rsvd1); + if (ep.pr_fpu.fpu_rsvd2) + warning ("rsvd2 is 0x%x\n", ep.pr_fpu.fpu_rsvd2); + if (ep.pr_fpu.fpu_rsvd3) + warning ("rsvd3 is 0x%x\n", ep.pr_fpu.fpu_rsvd3); + if (ep.pr_fpu.fpu_rsvd5) + warning ("rsvd5 is 0x%x\n", ep.pr_fpu.fpu_rsvd5); } -print_1167_control_word(pcr) -unsigned int pcr; +print_1167_control_word (pcr) + unsigned int pcr; { - int pcr_tmp; + int pcr_tmp; - pcr_tmp = pcr & FPA_PCR_MODE; - printf_unfiltered("\tMODE= %#x; RND= %#x ", pcr_tmp, pcr_tmp & 12); - switch (pcr_tmp & 12) { + pcr_tmp = pcr & FPA_PCR_MODE; + printf_unfiltered ("\tMODE= %#x; RND= %#x ", pcr_tmp, pcr_tmp & 12); + switch (pcr_tmp & 12) + { case 0: - printf_unfiltered("RN (Nearest Value)"); - break; + printf_unfiltered ("RN (Nearest Value)"); + break; case 1: - printf_unfiltered("RZ (Zero)"); - break; + printf_unfiltered ("RZ (Zero)"); + break; case 2: - printf_unfiltered("RP (Positive Infinity)"); - break; + printf_unfiltered ("RP (Positive Infinity)"); + break; case 3: - printf_unfiltered("RM (Negative Infinity)"); - break; + printf_unfiltered ("RM (Negative Infinity)"); + break; + } + printf_unfiltered ("; IRND= %d ", pcr_tmp & 2); + if (0 == pcr_tmp & 2) + { + printf_unfiltered ("(same as RND)\n"); } - printf_unfiltered("; IRND= %d ", pcr_tmp & 2); - if (0 == pcr_tmp & 2) { - printf_unfiltered("(same as RND)\n"); - } else { - printf_unfiltered("(toward zero)\n"); + else + { + printf_unfiltered ("(toward zero)\n"); } - pcr_tmp = pcr & FPA_PCR_EM; - printf_unfiltered("\tEM= %#x", pcr_tmp); - if (pcr_tmp & FPA_PCR_EM_DM) printf_unfiltered(" DM"); - if (pcr_tmp & FPA_PCR_EM_UOM) printf_unfiltered(" UOM"); - if (pcr_tmp & FPA_PCR_EM_PM) printf_unfiltered(" PM"); - if (pcr_tmp & FPA_PCR_EM_UM) printf_unfiltered(" UM"); - if (pcr_tmp & FPA_PCR_EM_OM) printf_unfiltered(" OM"); - if (pcr_tmp & FPA_PCR_EM_ZM) printf_unfiltered(" ZM"); - if (pcr_tmp & FPA_PCR_EM_IM) printf_unfiltered(" IM"); - printf_unfiltered("\n"); - pcr_tmp = FPA_PCR_CC; - printf_unfiltered("\tCC= %#x", pcr_tmp); - if (pcr_tmp & FPA_PCR_20MHZ) printf_unfiltered(" 20MHZ"); - if (pcr_tmp & FPA_PCR_CC_Z) printf_unfiltered(" Z"); - if (pcr_tmp & FPA_PCR_CC_C2) printf_unfiltered(" C2"); - - /* Dynix defines FPA_PCR_CC_C0 to 0x100 and ptx defines - FPA_PCR_CC_C1 to 0x100. Use whichever is defined and assume - the OS knows what it is doing. */ + pcr_tmp = pcr & FPA_PCR_EM; + printf_unfiltered ("\tEM= %#x", pcr_tmp); + if (pcr_tmp & FPA_PCR_EM_DM) + printf_unfiltered (" DM"); + if (pcr_tmp & FPA_PCR_EM_UOM) + printf_unfiltered (" UOM"); + if (pcr_tmp & FPA_PCR_EM_PM) + printf_unfiltered (" PM"); + if (pcr_tmp & FPA_PCR_EM_UM) + printf_unfiltered (" UM"); + if (pcr_tmp & FPA_PCR_EM_OM) + printf_unfiltered (" OM"); + if (pcr_tmp & FPA_PCR_EM_ZM) + printf_unfiltered (" ZM"); + if (pcr_tmp & FPA_PCR_EM_IM) + printf_unfiltered (" IM"); + printf_unfiltered ("\n"); + pcr_tmp = FPA_PCR_CC; + printf_unfiltered ("\tCC= %#x", pcr_tmp); + if (pcr_tmp & FPA_PCR_20MHZ) + printf_unfiltered (" 20MHZ"); + if (pcr_tmp & FPA_PCR_CC_Z) + printf_unfiltered (" Z"); + if (pcr_tmp & FPA_PCR_CC_C2) + printf_unfiltered (" C2"); + + /* Dynix defines FPA_PCR_CC_C0 to 0x100 and ptx defines + FPA_PCR_CC_C1 to 0x100. Use whichever is defined and assume + the OS knows what it is doing. */ #ifdef FPA_PCR_CC_C1 - if (pcr_tmp & FPA_PCR_CC_C1) printf_unfiltered(" C1"); + if (pcr_tmp & FPA_PCR_CC_C1) + printf_unfiltered (" C1"); #else - if (pcr_tmp & FPA_PCR_CC_C0) printf_unfiltered(" C0"); + if (pcr_tmp & FPA_PCR_CC_C0) + printf_unfiltered (" C0"); #endif - switch (pcr_tmp) - { - case FPA_PCR_CC_Z: - printf_unfiltered(" (Equal)"); - break; + switch (pcr_tmp) + { + case FPA_PCR_CC_Z: + printf_unfiltered (" (Equal)"); + break; #ifdef FPA_PCR_CC_C1 - case FPA_PCR_CC_C1: + case FPA_PCR_CC_C1: #else - case FPA_PCR_CC_C0: + case FPA_PCR_CC_C0: #endif - printf_unfiltered(" (Less than)"); - break; - case 0: - printf_unfiltered(" (Greater than)"); - break; - case FPA_PCR_CC_Z | + printf_unfiltered (" (Less than)"); + break; + case 0: + printf_unfiltered (" (Greater than)"); + break; + case FPA_PCR_CC_Z | #ifdef FPA_PCR_CC_C1 FPA_PCR_CC_C1 #else FPA_PCR_CC_C0 #endif - | FPA_PCR_CC_C2: - printf_unfiltered(" (Unordered)"); - break; - default: - printf_unfiltered(" (Undefined)"); - break; - } - printf_unfiltered("\n"); - pcr_tmp = pcr & FPA_PCR_AE; - printf_unfiltered("\tAE= %#x", pcr_tmp); - if (pcr_tmp & FPA_PCR_AE_DE) printf_unfiltered(" DE"); - if (pcr_tmp & FPA_PCR_AE_UOE) printf_unfiltered(" UOE"); - if (pcr_tmp & FPA_PCR_AE_PE) printf_unfiltered(" PE"); - if (pcr_tmp & FPA_PCR_AE_UE) printf_unfiltered(" UE"); - if (pcr_tmp & FPA_PCR_AE_OE) printf_unfiltered(" OE"); - if (pcr_tmp & FPA_PCR_AE_ZE) printf_unfiltered(" ZE"); - if (pcr_tmp & FPA_PCR_AE_EE) printf_unfiltered(" EE"); - if (pcr_tmp & FPA_PCR_AE_IE) printf_unfiltered(" IE"); - printf_unfiltered("\n"); + | FPA_PCR_CC_C2: + printf_unfiltered (" (Unordered)"); + break; + default: + printf_unfiltered (" (Undefined)"); + break; + } + printf_unfiltered ("\n"); + pcr_tmp = pcr & FPA_PCR_AE; + printf_unfiltered ("\tAE= %#x", pcr_tmp); + if (pcr_tmp & FPA_PCR_AE_DE) + printf_unfiltered (" DE"); + if (pcr_tmp & FPA_PCR_AE_UOE) + printf_unfiltered (" UOE"); + if (pcr_tmp & FPA_PCR_AE_PE) + printf_unfiltered (" PE"); + if (pcr_tmp & FPA_PCR_AE_UE) + printf_unfiltered (" UE"); + if (pcr_tmp & FPA_PCR_AE_OE) + printf_unfiltered (" OE"); + if (pcr_tmp & FPA_PCR_AE_ZE) + printf_unfiltered (" ZE"); + if (pcr_tmp & FPA_PCR_AE_EE) + printf_unfiltered (" EE"); + if (pcr_tmp & FPA_PCR_AE_IE) + printf_unfiltered (" IE"); + printf_unfiltered ("\n"); } -print_1167_regs(regs) -long regs[FPA_NREGS]; +print_1167_regs (regs) + long regs[FPA_NREGS]; { - int i; - - union { - double d; - long l[2]; - } xd; - union { - float f; - long l; - } xf; - - - for (i = 0; i < FPA_NREGS; i++) { - xf.l = regs[i]; - printf_unfiltered("%%fp%d: raw= %#x, single= %f", i+1, regs[i], xf.f); - if (!(i & 1)) { - printf_unfiltered("\n"); - } else { - xd.l[1] = regs[i]; - xd.l[0] = regs[i+1]; - printf_unfiltered(", double= %f\n", xd.d); + int i; + + union + { + double d; + long l[2]; + } + xd; + union + { + float f; + long l; + } + xf; + + + for (i = 0; i < FPA_NREGS; i++) + { + xf.l = regs[i]; + printf_unfiltered ("%%fp%d: raw= %#x, single= %f", i + 1, regs[i], xf.f); + if (!(i & 1)) + { + printf_unfiltered ("\n"); + } + else + { + xd.l[1] = regs[i]; + xd.l[0] = regs[i + 1]; + printf_unfiltered (", double= %f\n", xd.d); } } } -print_fpa_status(ep) -struct pt_regset ep; +print_fpa_status (ep) + struct pt_regset ep; { - printf_unfiltered("WTL 1167:"); - if (ep.pr_fpa.fpa_pcr !=0) { - printf_unfiltered("\n"); - print_1167_control_word(ep.pr_fpa.fpa_pcr); - print_1167_regs(ep.pr_fpa.fpa_regs); - } else { - printf_unfiltered(" not in use.\n"); + printf_unfiltered ("WTL 1167:"); + if (ep.pr_fpa.fpa_pcr != 0) + { + printf_unfiltered ("\n"); + print_1167_control_word (ep.pr_fpa.fpa_pcr); + print_1167_regs (ep.pr_fpa.fpa_regs); + } + else + { + printf_unfiltered (" not in use.\n"); } } -#if 0 /* disabled because it doesn't go through the target vector. */ +#if 0 /* disabled because it doesn't go through the target vector. */ i386_float_info () { - char ubuf[UPAGES*NBPG]; + char ubuf[UPAGES * NBPG]; struct pt_regset regset; - if (have_inferior_p()) + if (have_inferior_p ()) { - PTRACE_READ_REGS (inferior_pid, (PTRACE_ARG3_TYPE) ®set); + PTRACE_READ_REGS (inferior_pid, (PTRACE_ARG3_TYPE) & regset); } else { @@ -342,7 +390,7 @@ i386_float_info () { perror ("seek on core file"); } - if (myread (corechan, ubuf, UPAGES*NBPG) < 0) + if (myread (corechan, ubuf, UPAGES * NBPG) < 0) { perror ("read on core file"); } @@ -350,20 +398,20 @@ i386_float_info () regset.pr_fpu = ((struct user *) ubuf)->u_fpusave; regset.pr_fpa = ((struct user *) ubuf)->u_fpasave; } - print_fpu_status(regset); - print_fpa_status(regset); + print_fpu_status (regset); + print_fpa_status (regset); } #endif static volatile int got_sigchld; -/*ARGSUSED*/ +/*ARGSUSED */ /* This will eventually be more interesting. */ void -sigchld_handler(signo) - int signo; +sigchld_handler (signo) + int signo; { - got_sigchld++; + got_sigchld++; } /* @@ -384,7 +432,7 @@ sigchld_handler(signo) * Thanks to XPT_MPDEBUGGER, we have to mange child_wait(). */ int -child_wait(pid, status) +child_wait (pid, status) int pid; struct target_waitstatus *status; { @@ -399,133 +447,145 @@ child_wait(pid, status) prstatus_t pstatus; #endif - do { - set_sigint_trap(); /* Causes SIGINT to be passed on to the - attached process. */ - save_errno = errno; + do + { + set_sigint_trap (); /* Causes SIGINT to be passed on to the + attached process. */ + save_errno = errno; - got_sigchld = 0; + got_sigchld = 0; - sigemptyset(&set); + sigemptyset (&set); - while (got_sigchld == 0) { - sigsuspend(&set); - } - - clear_sigint_trap(); + while (got_sigchld == 0) + { + sigsuspend (&set); + } - rv = mptrace(XPT_STOPSTAT, 0, (char *)&pt, 0); - if (-1 == rv) { - printf("XPT_STOPSTAT: errno %d\n", errno); /* DEBUG */ - continue; - } + clear_sigint_trap (); + + rv = mptrace (XPT_STOPSTAT, 0, (char *) &pt, 0); + if (-1 == rv) + { + printf ("XPT_STOPSTAT: errno %d\n", errno); /* DEBUG */ + continue; + } - pid = pt.ps_pid; - - if (pid != inferior_pid) { - /* NOTE: the mystery fork in csh/tcsh needs to be ignored. - * We should not return new children for the initial run - * of a process until it has done the exec. - */ - /* inferior probably forked; send it on its way */ - rv = mptrace(XPT_UNDEBUG, pid, 0, 0); - if (-1 == rv) { - printf("child_wait: XPT_UNDEBUG: pid %d: %s\n", pid, - safe_strerror(errno)); + pid = pt.ps_pid; + + if (pid != inferior_pid) + { + /* NOTE: the mystery fork in csh/tcsh needs to be ignored. + * We should not return new children for the initial run + * of a process until it has done the exec. + */ + /* inferior probably forked; send it on its way */ + rv = mptrace (XPT_UNDEBUG, pid, 0, 0); + if (-1 == rv) + { + printf ("child_wait: XPT_UNDEBUG: pid %d: %s\n", pid, + safe_strerror (errno)); } - continue; - } - /* FIXME: Do we deal with fork notification correctly? */ - switch (pt.ps_reason) { - case PTS_FORK: - /* multi proc: treat like PTS_EXEC */ - /* - * Pretend this didn't happen, since gdb isn't set up - * to deal with stops on fork. - */ - rv = ptrace(PT_CONTSIG, pid, 1, 0); - if (-1 == rv) { - printf("PTS_FORK: PT_CONTSIG: error %d\n", errno); + continue; + } + /* FIXME: Do we deal with fork notification correctly? */ + switch (pt.ps_reason) + { + case PTS_FORK: + /* multi proc: treat like PTS_EXEC */ + /* + * Pretend this didn't happen, since gdb isn't set up + * to deal with stops on fork. + */ + rv = ptrace (PT_CONTSIG, pid, 1, 0); + if (-1 == rv) + { + printf ("PTS_FORK: PT_CONTSIG: error %d\n", errno); } - continue; - case PTS_EXEC: - /* - * Pretend this is a SIGTRAP. - */ - status->kind = TARGET_WAITKIND_STOPPED; - status->value.sig = TARGET_SIGNAL_TRAP; - break; - case PTS_EXIT: - /* - * Note: we stop before the exit actually occurs. Extract - * the exit code from the uarea. If we're stopped in the - * exit() system call, the exit code will be in - * u.u_ap[0]. An exit due to an uncaught signal will have - * something else in here, see the comment in the default: - * case, below. Finally,let the process exit. - */ - if (death_by_signal) - { - status->kind = TARGET_WAITKIND_SIGNALED; - status->value.sig = target_signal_from_host (death_by_signal); - death_by_signal = 0; - break; - } - xvaloff = (unsigned long)&u.u_ap[0] - (unsigned long)&u; - errno = 0; - rv = ptrace(PT_RUSER, pid, (char *)xvaloff, 0); - status->kind = TARGET_WAITKIND_EXITED; - status->value.integer = rv; - /* - * addr & data to mptrace() don't matter here, since - * the process is already dead. - */ - rv = mptrace(XPT_UNDEBUG, pid, 0, 0); - if (-1 == rv) { - printf("child_wait: PTS_EXIT: XPT_UNDEBUG: pid %d error %d\n", pid, - errno); + continue; + case PTS_EXEC: + /* + * Pretend this is a SIGTRAP. + */ + status->kind = TARGET_WAITKIND_STOPPED; + status->value.sig = TARGET_SIGNAL_TRAP; + break; + case PTS_EXIT: + /* + * Note: we stop before the exit actually occurs. Extract + * the exit code from the uarea. If we're stopped in the + * exit() system call, the exit code will be in + * u.u_ap[0]. An exit due to an uncaught signal will have + * something else in here, see the comment in the default: + * case, below. Finally,let the process exit. + */ + if (death_by_signal) + { + status->kind = TARGET_WAITKIND_SIGNALED; + status->value.sig = target_signal_from_host (death_by_signal); + death_by_signal = 0; + break; } - break; - case PTS_WATCHPT_HIT: - fatal("PTS_WATCHPT_HIT\n"); - break; - default: - /* stopped by signal */ - status->kind = TARGET_WAITKIND_STOPPED; - status->value.sig = target_signal_from_host (pt.ps_reason); - death_by_signal = 0; - - if (0 == (SIGNALS_DFL_SAFE & sigmask(pt.ps_reason))) { - break; + xvaloff = (unsigned long) &u.u_ap[0] - (unsigned long) &u; + errno = 0; + rv = ptrace (PT_RUSER, pid, (char *) xvaloff, 0); + status->kind = TARGET_WAITKIND_EXITED; + status->value.integer = rv; + /* + * addr & data to mptrace() don't matter here, since + * the process is already dead. + */ + rv = mptrace (XPT_UNDEBUG, pid, 0, 0); + if (-1 == rv) + { + printf ("child_wait: PTS_EXIT: XPT_UNDEBUG: pid %d error %d\n", pid, + errno); + } + break; + case PTS_WATCHPT_HIT: + fatal ("PTS_WATCHPT_HIT\n"); + break; + default: + /* stopped by signal */ + status->kind = TARGET_WAITKIND_STOPPED; + status->value.sig = target_signal_from_host (pt.ps_reason); + death_by_signal = 0; + + if (0 == (SIGNALS_DFL_SAFE & sigmask (pt.ps_reason))) + { + break; } - /* else default action of signal is to die */ + /* else default action of signal is to die */ #ifdef SVR4_SHARED_LIBS - rv = ptrace(PT_GET_PRSTATUS, pid, (char *)&pstatus, 0); - if (-1 == rv) - error("child_wait: signal %d PT_GET_PRSTATUS: %s\n", - pt.ps_reason, safe_strerror(errno)); - if (pstatus.pr_cursig != pt.ps_reason) { - printf("pstatus signal %d, pt signal %d\n", - pstatus.pr_cursig, pt.ps_reason); + rv = ptrace (PT_GET_PRSTATUS, pid, (char *) &pstatus, 0); + if (-1 == rv) + error ("child_wait: signal %d PT_GET_PRSTATUS: %s\n", + pt.ps_reason, safe_strerror (errno)); + if (pstatus.pr_cursig != pt.ps_reason) + { + printf ("pstatus signal %d, pt signal %d\n", + pstatus.pr_cursig, pt.ps_reason); } - sa_hand = (int)pstatus.pr_action.sa_handler; + sa_hand = (int) pstatus.pr_action.sa_handler; #else - saoff = (unsigned long)&u.u_sa[0] - (unsigned long)&u; - saoff += sizeof(struct sigaction) * (pt.ps_reason - 1); - errno = 0; - sa_hand = ptrace(PT_RUSER, pid, (char *)saoff, 0); - if (errno) - error("child_wait: signal %d: RUSER: %s\n", - pt.ps_reason, safe_strerror(errno)); + saoff = (unsigned long) &u.u_sa[0] - (unsigned long) &u; + saoff += sizeof (struct sigaction) * (pt.ps_reason - 1); + errno = 0; + sa_hand = ptrace (PT_RUSER, pid, (char *) saoff, 0); + if (errno) + error ("child_wait: signal %d: RUSER: %s\n", + pt.ps_reason, safe_strerror (errno)); #endif - if ((int)SIG_DFL == sa_hand) { - /* we will be dying */ - death_by_signal = pt.ps_reason; + if ((int) SIG_DFL == sa_hand) + { + /* we will be dying */ + death_by_signal = pt.ps_reason; } - break; - } + break; + } - } while (pid != inferior_pid); /* Some other child died or stopped */ + } + while (pid != inferior_pid); /* Some other child died or stopped */ return pid; } @@ -542,28 +602,30 @@ child_wait (pid, ourstatus) int save_errno; int status; - do { - pid = wait (&status); - save_errno = errno; + do + { + pid = wait (&status); + save_errno = errno; - if (pid == -1) - { - if (save_errno == EINTR) - continue; - fprintf (stderr, "Child process unexpectedly missing: %s.\n", - safe_strerror (save_errno)); - ourstatus->kind = TARGET_WAITKIND_SIGNALLED; - ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; - return -1; - } - } while (pid != inferior_pid); /* Some other child died or stopped */ + if (pid == -1) + { + if (save_errno == EINTR) + continue; + fprintf (stderr, "Child process unexpectedly missing: %s.\n", + safe_strerror (save_errno)); + ourstatus->kind = TARGET_WAITKIND_SIGNALLED; + ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; + return -1; + } + } + while (pid != inferior_pid); /* Some other child died or stopped */ store_waitstatus (ourstatus, status); return pid; } #endif /* ATTACH_DETACH */ + - /* This function simply calls ptrace with the given arguments. It exists so that all calls to ptrace are isolated in this machine-dependent file. */ @@ -577,12 +639,12 @@ call_ptrace (request, pid, addr, data) } int -call_mptrace(request, pid, addr, data) - int request, pid; - PTRACE_ARG3_TYPE addr; - int data; +call_mptrace (request, pid, addr, data) + int request, pid; + PTRACE_ARG3_TYPE addr; + int data; { - return mptrace(request, pid, addr, data); + return mptrace (request, pid, addr, data); } #if defined (DEBUG_PTRACE) @@ -604,10 +666,10 @@ kill_inferior () kill (inferior_pid, SIGKILL); #ifdef ATTACH_DETACH - detach(SIGKILL); + detach (SIGKILL); #else /* ATTACH_DETACH */ - ptrace(PT_KILL, inferior_pid, 0, 0); - wait((int *)NULL); + ptrace (PT_KILL, inferior_pid, 0, 0); + wait ((int *) NULL); #endif /* ATTACH_DETACH */ target_mourn_inferior (); } @@ -637,7 +699,7 @@ child_resume (pid, step, signal) instructions), so we don't have to worry about that here. */ if (step) - ptrace (PT_SSTEP, pid, (PTRACE_ARG3_TYPE) 1, signal); + ptrace (PT_SSTEP, pid, (PTRACE_ARG3_TYPE) 1, signal); else ptrace (PT_CONTSIG, pid, (PTRACE_ARG3_TYPE) 1, signal); @@ -651,32 +713,35 @@ int attach (pid) int pid; { - sigset_t set; - int rv; + sigset_t set; + int rv; - rv = mptrace(XPT_DEBUG, pid, 0, 0); - if (-1 == rv) { - error("mptrace(XPT_DEBUG): %s", safe_strerror(errno)); - } - rv = mptrace(XPT_SIGNAL, pid, 0, SIGSTOP); - if (-1 == rv) { - error("mptrace(XPT_SIGNAL): %s", safe_strerror(errno)); - } - attach_flag = 1; - return pid; + rv = mptrace (XPT_DEBUG, pid, 0, 0); + if (-1 == rv) + { + error ("mptrace(XPT_DEBUG): %s", safe_strerror (errno)); + } + rv = mptrace (XPT_SIGNAL, pid, 0, SIGSTOP); + if (-1 == rv) + { + error ("mptrace(XPT_SIGNAL): %s", safe_strerror (errno)); + } + attach_flag = 1; + return pid; } void detach (signo) int signo; { - int rv; + int rv; - rv = mptrace(XPT_UNDEBUG, inferior_pid, 1, signo); - if (-1 == rv) { - error("mptrace(XPT_UNDEBUG): %s", safe_strerror(errno)); - } - attach_flag = 0; + rv = mptrace (XPT_UNDEBUG, inferior_pid, 1, signo); + if (-1 == rv) + { + error ("mptrace(XPT_UNDEBUG): %s", safe_strerror (errno)); + } + attach_flag = 0; } #endif /* ATTACH_DETACH */ @@ -685,8 +750,8 @@ detach (signo) #ifndef PTRACE_XFER_TYPE #define PTRACE_XFER_TYPE int #endif - + /* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory in the NEW_SUN_PTRACE case. It ought to be straightforward. But it appears that writing did @@ -696,7 +761,7 @@ detach (signo) /* Copy LEN bytes to or from inferior's memory starting at MEMADDR to debugger memory starting at MYADDR. Copy to inferior if WRITE is nonzero. - + Returns the length copied, which is either the LEN argument or zero. This xfer function does not do partial moves, since child_ops doesn't allow memory operations to cross below us in the target stack @@ -708,28 +773,29 @@ child_xfer_memory (memaddr, myaddr, len, write, target) char *myaddr; int len; int write; - struct target_ops *target; /* ignored */ + struct target_ops *target; /* ignored */ { register int i; /* Round starting address down to longword boundary. */ - register CORE_ADDR addr = memaddr & - sizeof (PTRACE_XFER_TYPE); + register CORE_ADDR addr = memaddr & -sizeof (PTRACE_XFER_TYPE); /* Round ending address up; get number of longwords that makes. */ register int count - = (((memaddr + len) - addr) + sizeof (PTRACE_XFER_TYPE) - 1) - / sizeof (PTRACE_XFER_TYPE); + = (((memaddr + len) - addr) + sizeof (PTRACE_XFER_TYPE) - 1) + / sizeof (PTRACE_XFER_TYPE); /* Allocate buffer of that many longwords. */ register PTRACE_XFER_TYPE *buffer - = (PTRACE_XFER_TYPE *) alloca (count * sizeof (PTRACE_XFER_TYPE)); + = (PTRACE_XFER_TYPE *) alloca (count * sizeof (PTRACE_XFER_TYPE)); if (write) { /* Fill start and end extra bytes of buffer with existing memory data. */ - if (addr != memaddr || len < (int) sizeof (PTRACE_XFER_TYPE)) { - /* Need part of initial word -- fetch it. */ - buffer[0] = ptrace (PT_RTEXT, inferior_pid, (PTRACE_ARG3_TYPE) addr, - 0); - } + if (addr != memaddr || len < (int) sizeof (PTRACE_XFER_TYPE)) + { + /* Need part of initial word -- fetch it. */ + buffer[0] = ptrace (PT_RTEXT, inferior_pid, (PTRACE_ARG3_TYPE) addr, + 0); + } if (count > 1) /* FIXME, avoid if even boundary */ { @@ -756,7 +822,7 @@ child_xfer_memory (memaddr, myaddr, len, write, target) if (errno) { /* Using the appropriate one (I or D) is necessary for - Gould NP1, at least. */ + Gould NP1, at least. */ errno = 0; ptrace (PT_WTEXT, inferior_pid, (PTRACE_ARG3_TYPE) addr, buffer[i]); @@ -800,45 +866,49 @@ _initialize_symm_nat () * Note that attach is not implemented in dynix 3, and not in ptx * until version 2.1 of the OS. */ - int rv; - sigset_t set; - struct sigaction sact; - - rv = mptrace(XPT_MPDEBUGGER, 0, 0, 0); - if (-1 == rv) { - fatal("_initialize_symm_nat(): mptrace(XPT_MPDEBUGGER): %s", - safe_strerror(errno)); - } + int rv; + sigset_t set; + struct sigaction sact; - /* - * Under MPDEBUGGER, we get SIGCLHD when a traced process does - * anything of interest. - */ - - /* - * Block SIGCHLD. We leave it blocked all the time, and then - * call sigsuspend() in child_wait() to wait for the child - * to do something. None of these ought to fail, but check anyway. - */ - sigemptyset(&set); - rv = sigaddset(&set, SIGCHLD); - if (-1 == rv) { - fatal("_initialize_symm_nat(): sigaddset(SIGCHLD): %s", - safe_strerror(errno)); - } - rv = sigprocmask(SIG_BLOCK, &set, (sigset_t *)NULL); - if (-1 == rv) { - fatal("_initialize_symm_nat(): sigprocmask(SIG_BLOCK): %s", - safe_strerror(errno)); - } + rv = mptrace (XPT_MPDEBUGGER, 0, 0, 0); + if (-1 == rv) + { + fatal ("_initialize_symm_nat(): mptrace(XPT_MPDEBUGGER): %s", + safe_strerror (errno)); + } - sact.sa_handler = sigchld_handler; - sigemptyset(&sact.sa_mask); - sact.sa_flags = SA_NOCLDWAIT; /* keep the zombies away */ - rv = sigaction(SIGCHLD, &sact, (struct sigaction *)NULL); - if (-1 == rv) { - fatal("_initialize_symm_nat(): sigaction(SIGCHLD): %s", - safe_strerror(errno)); - } + /* + * Under MPDEBUGGER, we get SIGCLHD when a traced process does + * anything of interest. + */ + + /* + * Block SIGCHLD. We leave it blocked all the time, and then + * call sigsuspend() in child_wait() to wait for the child + * to do something. None of these ought to fail, but check anyway. + */ + sigemptyset (&set); + rv = sigaddset (&set, SIGCHLD); + if (-1 == rv) + { + fatal ("_initialize_symm_nat(): sigaddset(SIGCHLD): %s", + safe_strerror (errno)); + } + rv = sigprocmask (SIG_BLOCK, &set, (sigset_t *) NULL); + if (-1 == rv) + { + fatal ("_initialize_symm_nat(): sigprocmask(SIG_BLOCK): %s", + safe_strerror (errno)); + } + + sact.sa_handler = sigchld_handler; + sigemptyset (&sact.sa_mask); + sact.sa_flags = SA_NOCLDWAIT; /* keep the zombies away */ + rv = sigaction (SIGCHLD, &sact, (struct sigaction *) NULL); + if (-1 == rv) + { + fatal ("_initialize_symm_nat(): sigaction(SIGCHLD): %s", + safe_strerror (errno)); + } #endif } |