diff options
Diffstat (limited to 'tools/debugger/xenitp/xenitp.c')
| -rw-r--r-- | tools/debugger/xenitp/xenitp.c | 1732 |
1 files changed, 0 insertions, 1732 deletions
diff --git a/tools/debugger/xenitp/xenitp.c b/tools/debugger/xenitp/xenitp.c deleted file mode 100644 index 812810c02f..0000000000 --- a/tools/debugger/xenitp/xenitp.c +++ /dev/null @@ -1,1732 +0,0 @@ -/* tools/debugger/xenitp.c - A low-level debugger. - - Based on xenctxt.c, but heavily modified. - Copyright 2007 Tristan Gingold <tgingold@free.fr> - - Xenitp 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. - - Xenitp 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, see <http://www.gnu.org/licenses/>. -*/ - -#include <time.h> -#include <stdlib.h> -#include <sys/mman.h> -#include <stdio.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> -#include <unistd.h> -#include <errno.h> -#include <argp.h> -#include <signal.h> -#include <string.h> -#include <getopt.h> - -#include "xenctrl.h" -#include <xen/sys/privcmd.h> -#include "dis-asm.h" - -#ifdef __HYPERVISOR_ia64_debug_op -#define HAVE_DEBUG_OP -#include <xen/arch-ia64/debug_op.h> -#endif - -static xc_interface *xc_handle = 0; -static int domid = 0; -static vcpu_guest_context_t *cur_ctx; -static int cur_vcpu; - -#define PSR_BN (1UL << 44) -#define PSR_SS (1UL << 40) -#define PSR_DB (1UL << 24) -#define PSR_TB (1UL << 26) -#define PSR_DD (1UL << 39) -#define PSR_ID (1UL << 37) -#define PSR_IT (1UL << 36) -#define PSR_DT (1UL << 17) -#define PSR_RI_SHIFT 41 -#define CFM_SOF_MASK 0x3f - -int virt_to_phys (int is_inst, unsigned long vaddr, unsigned long *paddr); - -/* wrapper for vcpu_gest_context_any_t */ -static int xc_ia64_vcpu_getcontext(xc_interface *xc_handle, - uint32_t domid, - uint32_t vcpu, - vcpu_guest_context_t *ctxt) -{ - return xc_vcpu_getcontext(xc_handle, domid, vcpu, - (vcpu_guest_context_any_t *)ctxt); -} - -static inline unsigned int ctx_slot (vcpu_guest_context_t *ctx) -{ - return (ctx->regs.psr >> PSR_RI_SHIFT) & 3; -} - -unsigned char * -target_map_memory (unsigned long paddr) -{ - static unsigned long cur_page = (unsigned long)-1; - static unsigned char *cur_map = NULL; - - if ((paddr >> XC_PAGE_SHIFT) != cur_page) { - if (cur_map) { - munmap (cur_map, XC_PAGE_SIZE); - cur_map = NULL; - } - cur_page = paddr >> XC_PAGE_SHIFT; - cur_map = xc_map_foreign_range (xc_handle, domid, XC_PAGE_SIZE, - PROT_READ, cur_page); - if (cur_map == NULL) { - perror ("cannot map page"); - cur_page = -1; - return NULL; - } - } - return cur_map + (paddr & (XC_PAGE_SIZE - 1)); -} - -/* Get LENGTH bytes from info's buffer, at target address memaddr. - Transfer them to myaddr. */ -int -target_read_memory (bfd_vma memaddr, bfd_byte *myaddr, - unsigned int length, struct disassemble_info *info) -{ - int i; - unsigned long paddr; - - if (cur_ctx->regs.psr & PSR_IT) { - if (virt_to_phys (1, memaddr, &paddr) != 0) - return EIO; - } - else { - /* Clear UC. */ - paddr = memaddr & ~(1UL << 63); - } - - for (i = 0; i < length; i++) { - unsigned char *p = target_map_memory (paddr + i); - - if (p == NULL) - return EIO; - myaddr[i] = *p; - } - return 0; -} - -/* Print an error message. We can assume that this is in response to - an error return from buffer_read_memory. */ -void -perror_memory (int status, bfd_vma memaddr, struct disassemble_info *info) -{ - if (status != EIO) - /* Can't happen. */ - (*info->fprintf_func) (info->stream, "Unknown error %d\n", status); - else - /* Actually, address between memaddr and memaddr + len was - out of bounds. */ - (*info->fprintf_func) (info->stream, - "Address 0x%" PRIx64 " is out of bounds.\n", - memaddr); -} - -/* This could be in a separate file, to save miniscule amounts of space - in statically linked executables. */ - -/* Just print the address is hex. This is included for completeness even - though both GDB and objdump provide their own (to print symbolic - addresses). */ - -void -generic_print_address (bfd_vma addr, struct disassemble_info *info) -{ - (*info->fprintf_func) (info->stream, "0x%" PRIx64, addr); -} - -/* Just return the given address. */ - -int -generic_symbol_at_address (bfd_vma addr, struct disassemble_info * info) -{ - return 1; -} - -bfd_boolean -generic_symbol_is_valid (asymbol * sym ATTRIBUTE_UNUSED, - struct disassemble_info *info ATTRIBUTE_UNUSED) -{ - return 1; -} - -bfd_vma bfd_getl32 (const bfd_byte *addr) -{ - unsigned long v; - - v = (unsigned long) addr[0]; - v |= (unsigned long) addr[1] << 8; - v |= (unsigned long) addr[2] << 16; - v |= (unsigned long) addr[3] << 24; - - return (bfd_vma) v; -} - -bfd_vma bfd_getl64 (const bfd_byte *addr) -{ - unsigned long v; - - v = (unsigned long) addr[0]; - v |= (unsigned long) addr[1] << 8; - v |= (unsigned long) addr[2] << 16; - v |= (unsigned long) addr[3] << 24; - v |= (unsigned long) addr[4] << 32; - v |= (unsigned long) addr[5] << 40; - v |= (unsigned long) addr[6] << 48; - v |= (unsigned long) addr[7] << 56; - - return (bfd_vma) v; -} - -bfd_vma bfd_getb32 (const bfd_byte *addr) -{ - unsigned long v; - - v = (unsigned long) addr[0] << 24; - v |= (unsigned long) addr[1] << 16; - v |= (unsigned long) addr[2] << 8; - v |= (unsigned long) addr[3]; - - return (bfd_vma) v; -} - -bfd_vma bfd_getl16 (const bfd_byte *addr) -{ - unsigned long v; - - v = (unsigned long) addr[0]; - v |= (unsigned long) addr[1] << 8; - - return (bfd_vma) v; -} - -bfd_vma bfd_getb16 (const bfd_byte *addr) -{ - unsigned long v; - - v = (unsigned long) addr[0] << 24; - v |= (unsigned long) addr[1] << 16; - - return (bfd_vma) v; -} - -void -init_disassemble_info (struct disassemble_info *info, void *stream, - fprintf_ftype fprintf_func) -{ - memset (info, 0, sizeof (*info)); - - info->flavour = bfd_target_unknown_flavour; - info->arch = bfd_arch_unknown; - info->endian = BFD_ENDIAN_UNKNOWN; - info->octets_per_byte = 1; - info->fprintf_func = fprintf_func; - info->stream = stream; - info->read_memory_func = target_read_memory; - info->memory_error_func = perror_memory; - info->print_address_func = generic_print_address; - info->symbol_at_address_func = generic_symbol_at_address; - info->symbol_is_valid = generic_symbol_is_valid; - info->display_endian = BFD_ENDIAN_UNKNOWN; -} - - -void target_disas (FILE *out, unsigned long code, unsigned long size) -{ - unsigned long pc; - int count; - struct disassemble_info disasm_info; - - INIT_DISASSEMBLE_INFO(disasm_info, out, fprintf); - - disasm_info.read_memory_func = target_read_memory; -#if 0 - disasm_info.buffer = NULL; - disasm_info.buffer_vma = (unsigned long)code; - disasm_info.buffer_length = size; -#endif - - disasm_info.endian = BFD_ENDIAN_LITTLE; - disasm_info.mach = 0; //bfd_mach_ia64; - - for (pc = code; pc < code + size; pc += count) { - int slot = (pc & 0x0f) / 6; - fprintf (out, "0x%016lx+%d:%c ", pc & ~0x0fUL, slot, - ((pc & ~0x0fUL) == cur_ctx->regs.ip - && slot == ctx_slot (cur_ctx)) ? '*' : ' '); - - count = print_insn_ia64 (pc, &disasm_info); - -#if 0 - { - int i; - uint8_t b; - - fprintf (out, " {"); - for (i = 0; i < count; i++) { - target_read_memory (pc + i, &b, 1, &disasm_info); - fprintf (out, " %02x", b); - } - fprintf (out, " }"); - } -#endif - fprintf (out, "\n"); - if (count < 0) - break; - } -} - - -#define PTE_ED_SHIFT 52 -#define PTE_ED_MASK 1 -#define PTE_PPN_SHIFT 12 -#define PTE_PPN_MASK 0x3fffffffff -#define PTE_AR_SHIFT 9 -#define PTE_AR_MASK 7 -#define PTE_PL_SHIFT 7 -#define PTE_PL_MASK 3 -#define PTE_D_SHIFT 6 -#define PTE_D_MASK 1 -#define PTE_A_SHIFT 5 -#define PTE_A_MASK 1 -#define PTE_MA_SHIFT 2 -#define PTE_MA_MASK 7 -#define PTE_P_SHIFT 0 -#define PTE_P_MASK 1 -#define ITIR_KEY_SHIFT 8 -#define ITIR_KEY_MASK 0xffffff -#define ITIR_PS_SHIFT 2 -#define ITIR_PS_MASK 0x3f -#define ITIR_PS_MIN 12 -#define ITIR_PS_MAX 28 -#define RR_RID_SHIFT 8 -#define RR_RID_MASK 0xffffff -#define RR_PS_SHIFT 2 -#define RR_PS_MASK 0x3f -#define RR_VE_MASK 1 - -static const char *get_ps (int ps_val) -{ - static const char ps[][5] = {" 4K", " 8K", " 16K", " ", - " 64K", " ", "256K", " ", - " 1M", " ", " 4M", " ", - " 16M", " ", " 64M", " ", - "256M"}; - return ((ps_val >= ITIR_PS_MIN && ps_val <= ITIR_PS_MAX) ? - ps[ps_val - ITIR_PS_MIN] : " "); - -} - -static void print_a_tr (int i, const struct ia64_tr_entry *tr) -{ - int ps_val, ma_val; - unsigned long pa; - - static const char ma[][4] = {"WB ", " ", " ", " ", - "UC ", "UCE", "WC ", "Nat"}; - - ps_val = tr->itir >> ITIR_PS_SHIFT & ITIR_PS_MASK; - ma_val = tr->pte >> PTE_MA_SHIFT & PTE_MA_MASK; - pa = (tr->pte >> PTE_PPN_SHIFT & PTE_PPN_MASK) << PTE_PPN_SHIFT; - pa = (pa >> ps_val) << ps_val; - printf (" [%2d] %ld %06lx %016lx %013lx %02d %s %ld %ld %ld %ld " - "%ld %d %s %06lx\n", i, - tr->pte >> PTE_P_SHIFT & PTE_P_MASK, - tr->rid >> RR_RID_SHIFT & RR_RID_MASK, - tr->vadr, pa, ps_val, get_ps (ps_val), - tr->pte >> PTE_ED_SHIFT & PTE_ED_MASK, - tr->pte >> PTE_PL_SHIFT & PTE_PL_MASK, - tr->pte >> PTE_AR_SHIFT & PTE_AR_MASK, - tr->pte >> PTE_A_SHIFT & PTE_A_MASK, - tr->pte >> PTE_D_SHIFT & PTE_D_MASK, - ma_val, ma[ma_val], - tr->itir >> ITIR_KEY_SHIFT & ITIR_KEY_MASK); -} - -void print_ctx (vcpu_guest_context_t *ctx) -{ - struct vcpu_guest_context_regs *regs = &ctx->regs; - int i; - unsigned int rbs_size, cfm_sof; - - rbs_size = (regs->ar.bsp - regs->ar.bspstore) / 8; - cfm_sof = (regs->cfm & CFM_SOF_MASK); - printf ("bspstore: %016lx bsp: %016lx rbs_size=%d, sof=%d\n", - regs->ar.bspstore, regs->ar.bsp, rbs_size, cfm_sof); - - for (i = 0; i < cfm_sof; i++) { - int off = cfm_sof - i; - unsigned int rbs_off = - (((62 - ((rbs_size + regs->rbs_voff) % 64) + off)) / 63) + off; - if (rbs_off > rbs_size) - break; - printf (" r%02d: %016lx%s", 32 + i, - regs->rbs[rbs_size - rbs_off], - (i % 3) != 2 ? " " : "\n"); - } - if ((i % 3) != 0) - printf ("\n"); - - printf ("\n"); - printf (" r1: %016lx ", regs->r[1]); - printf (" r2: %016lx ", regs->r[2]); - printf (" r3: %016lx\n", regs->r[3]); - printf (" r4: %016lx ", regs->r[4]); - printf (" r5: %016lx ", regs->r[5]); - printf (" r6: %016lx\n", regs->r[6]); - printf (" r7: %016lx ", regs->r[7]); - printf (" r8: %016lx ", regs->r[8]); - printf (" r9: %016lx\n", regs->r[9]); - printf (" r10: %016lx ", regs->r[10]); - printf (" r11: %016lx ", regs->r[11]); - printf (" sp: %016lx\n", regs->r[12]); - printf (" tp: %016lx ", regs->r[13]); - printf (" r14: %016lx ", regs->r[14]); - printf (" r15: %016lx\n", regs->r[15]); - printf (" r16: %016lx ", regs->r[16]); - printf (" r17: %016lx ", regs->r[17]); - printf (" r18: %016lx\n", regs->r[18]); - printf (" r19: %016lx ", regs->r[19]); - printf (" r20: %016lx ", regs->r[20]); - printf (" r21: %016lx\n", regs->r[21]); - printf (" r22: %016lx ", regs->r[22]); - printf (" r23: %016lx ", regs->r[23]); - printf (" r24: %016lx\n", regs->r[24]); - printf (" r25: %016lx ", regs->r[25]); - printf (" r26: %016lx ", regs->r[26]); - printf (" r27: %016lx\n", regs->r[27]); - printf (" r28: %016lx ", regs->r[28]); - printf (" r29: %016lx ", regs->r[29]); - printf (" r30: %016lx\n", regs->r[30]); - printf (" r31: %016lx ", regs->r[31]); - printf (" "); - printf (" b0: %016lx\n", regs->b[0]); - - printf ("\n"); - printf (" psr: %016lx ", regs->psr); - printf (" cfm: %016lx ", regs->cfm); - printf (" pr: %016lx\n", regs->pr); - - printf ("\n"); - printf (" ip: %016lx+%d", regs->ip, (int)(regs->psr >> PSR_RI_SHIFT) & 3); - printf ("\n"); - target_disas (stdout, regs->ip, 16); -} - -void print_br (vcpu_guest_context_t *ctx) -{ - struct vcpu_guest_context_regs *regs = &ctx->regs; - - printf (" b0: %016lx ", regs->b[0]); - printf (" b1: %016lx ", regs->b[1]); - printf (" b2: %016lx\n", regs->b[2]); - printf (" b3: %016lx ", regs->b[3]); - printf (" b4: %016lx ", regs->b[4]); - printf (" b5: %016lx\n", regs->b[5]); - printf (" b6: %016lx ", regs->b[6]); - printf (" b7: %016lx\n", regs->b[7]); -} - -void print_regs (vcpu_guest_context_t *ctx) -{ - struct vcpu_guest_context_regs *regs = &ctx->regs; - - printf (" r1: %016lx ", regs->r[1]); - printf (" r2: %016lx ", regs->r[2]); - printf (" r3: %016lx\n", regs->r[3]); - printf (" r4: %016lx ", regs->r[4]); - printf (" r5: %016lx ", regs->r[5]); - printf (" r6: %016lx\n", regs->r[6]); - printf (" r7: %016lx ", regs->r[7]); - printf (" r8: %016lx ", regs->r[8]); - printf (" r9: %016lx\n", regs->r[9]); - printf (" r10: %016lx ", regs->r[10]); - printf (" r11: %016lx ", regs->r[11]); - printf (" sp: %016lx\n", regs->r[12]); - printf (" tp: %016lx ", regs->r[13]); - printf (" r14: %016lx ", regs->r[14]); - printf (" r15: %016lx\n", regs->r[15]); - - printf (" Bank %d (current) Bank %d\n", - (regs->psr & PSR_BN) ? 1 : 0, (regs->psr & PSR_BN) ? 0 : 1); - printf ("16:%016lx ", regs->r[16]); - printf ("17:%016lx ", regs->r[17]); - printf ("16:%016lx ", regs->bank[0]); - printf ("17:%016lx\n", regs->bank[1]); - printf ("18:%016lx ", regs->r[18]); - printf ("19:%016lx ", regs->r[19]); - printf ("18:%016lx ", regs->bank[2]); - printf ("19:%016lx\n", regs->bank[3]); - printf ("20:%016lx ", regs->r[20]); - printf ("21:%016lx ", regs->r[21]); - printf ("20:%016lx ", regs->bank[4]); - printf ("21:%016lx\n", regs->bank[5]); - printf ("22:%016lx ", regs->r[22]); - printf ("23:%016lx ", regs->r[23]); - printf ("22:%016lx ", regs->bank[6]); - printf ("23:%016lx\n", regs->bank[7]); - printf ("24:%016lx ", regs->r[24]); - printf ("25:%016lx ", regs->r[25]); - printf ("24:%016lx ", regs->bank[8]); - printf ("25:%016lx\n", regs->bank[9]); - printf ("26:%016lx ", regs->r[26]); - printf ("27:%016lx ", regs->r[27]); - printf ("26:%016lx ", regs->bank[10]); - printf ("27:%016lx\n", regs->bank[11]); - printf ("28:%016lx ", regs->r[28]); - printf ("29:%016lx ", regs->r[29]); - printf ("28:%016lx ", regs->bank[12]); - printf ("29:%016lx\n", regs->bank[13]); - printf ("30:%016lx ", regs->r[30]); - printf ("31:%016lx ", regs->r[31]); - printf ("30:%016lx ", regs->bank[14]); - printf ("31:%016lx\n", regs->bank[15]); - printf ("\n"); -} - -void print_cr (vcpu_guest_context_t *ctx) -{ - struct vcpu_guest_context_regs *regs = &ctx->regs; - - printf (" dcr: %016lx ", regs->cr.dcr); - printf (" itm: %016lx ", regs->cr.itm); - printf (" iva: %016lx\n", regs->cr.iva); - printf (" pta: %016lx ", regs->cr.pta); - printf (" ipsr: %016lx ", regs->cr.ipsr); - printf (" isr: %016lx\n", regs->cr.isr); - printf (" iip: %016lx ", regs->cr.iip); - printf (" ifa: %016lx ", regs->cr.ifa); - printf (" itir: %016lx\n", regs->cr.itir); - printf (" iipa: %016lx ", regs->cr.iipa); - printf (" ifs: %016lx ", regs->cr.ifs); - printf (" iim: %016lx\n", regs->cr.iim); - printf (" iha: %016lx ", regs->cr.iha); - printf (" lid: %016lx ", regs->cr.lid); - printf (" ivr: %016lx\n", regs->cr.ivr); - printf (" tpr: %016lx ", regs->cr.tpr); - printf (" eoi: %016lx ", regs->cr.eoi); - printf (" irr0: %016lx\n", regs->cr.irr[0]); - printf (" irr1: %016lx ", regs->cr.irr[1]); - printf (" irr2: %016lx ", regs->cr.irr[2]); - printf (" irr3: %016lx\n", regs->cr.irr[3]); - printf (" itv: %016lx ", regs->cr.itv); - printf (" pmv: %016lx ", regs->cr.pmv); - printf (" cmcv: %016lx\n", regs->cr.cmcv); - printf (" lrr0: %016lx ", regs->cr.lrr0); - printf (" lrr1: %016lx ", regs->cr.lrr1); - printf (" ev_cb:%016lx\n", ctx->event_callback_ip); -} - -void print_ar (vcpu_guest_context_t *ctx) -{ - struct vcpu_guest_context_regs *regs = &ctx->regs; - - printf (" kr0: %016lx ", regs->ar.kr[0]); - printf (" kr1: %016lx ", regs->ar.kr[1]); - printf (" kr2: %016lx\n", regs->ar.kr[2]); - printf (" kr3: %016lx ", regs->ar.kr[3]); - printf (" kr4: %016lx ", regs->ar.kr[4]); - printf (" kr5: %016lx\n", regs->ar.kr[5]); - printf (" kr6: %016lx ", regs->ar.kr[6]); - printf (" kr7: %016lx ", regs->ar.kr[7]); - printf (" rsc: %016lx\n", regs->ar.rsc); - printf (" bsp: %016lx ", regs->ar.bsp); - printf (" bsps: %016lx ", regs->ar.bspstore); - printf (" rnat: %016lx\n", regs->ar.rnat); - printf (" csd: %016lx ", regs->ar.csd); - printf (" ccv: %016lx ", regs->ar.ccv); - printf (" unat: %016lx\n", regs->ar.unat); - printf (" fpsr: %016lx ", regs->ar.fpsr); - printf (" itc: %016lx\n", regs->ar.itc); - printf (" pfs: %016lx ", regs->ar.pfs); - printf (" lc: %016lx ", regs->ar.lc); - printf (" ec: %016lx\n", regs->ar.ec); -} - -void print_a_rr (int num, unsigned long rr) -{ - int ps_val = (rr >> RR_PS_SHIFT) & RR_PS_MASK; - - printf (" [%d] %06lx %02x %s %ld\n", - num, (rr >> RR_RID_SHIFT) & RR_RID_MASK, - ps_val, get_ps (ps_val), rr & RR_VE_MASK); -} - -void print_rr (vcpu_guest_context_t *ctx) -{ - struct vcpu_guest_context_regs *regs = &ctx->regs; - int i; - - printf (" rr: rid ps ve\n"); - for (i = 0; i < 8; i++) - print_a_rr (i, regs->rr[i]); -} - -void print_db (vcpu_guest_context_t *ctx) -{ - struct vcpu_guest_context_regs *regs = &ctx->regs; - int i; - - for (i = 0; i < 7; i += 2) - printf (" ibr[%d]: %016lx ibr[%d]: %016lx\n", - i, regs->ibr[i], i + 1, regs->ibr[i + 1]); - printf ("\n"); - for (i = 0; i < 7; i += 2) - printf (" dbr[%d]: %016lx dbr[%d]: %016lx\n", - i, regs->dbr[i], i + 1, regs->dbr[i + 1]); -} - -struct bit_descr { - const char *name; - unsigned char sz; -}; - -const struct bit_descr psr_bits[] = - { - {"", 1 }, {"be", 1 }, {"up", 1 }, {"ac", 1 }, - {"mfl", 1 }, {"mfh", 1 }, {"", 7 }, - {"ic", 1 }, {"i", 1 }, {"pk", 1 }, - {"", 1 }, {"dt", 1 }, {"dfl", 1 }, {"dfh", 1 }, - {"sp", 1 }, {"pp", 1 }, {"di", 1 }, {"si", 1 }, - {"db", 1 }, {"lp", 1 }, {"tb", 1 }, {"rt", 1 }, - {"", 4 }, - {"cpl", 2 }, {"is", 1 }, {"mc", 1 }, - {"it", 1 }, {"id", 1 }, {"da", 1 }, {"dd", 1 }, - {"ss", 1 }, {"ri", 2 }, {"ed", 1 }, - {"bn", 1 }, {"ia", 1 }, {"vm", 1 }, - {NULL, 0 } - }; - -void print_bits (const struct bit_descr *desc, unsigned long val) -{ - const struct bit_descr *d; - unsigned int off; - - /* Reverse order. */ - for (d = desc, off = 0; d->name; d++) - off += d->sz; - - d--; - - while (1) { - off -= d->sz; - if (*d->name) { - if (d->sz != 1 || ((val >> off) & 1)) - printf (" %s", d->name); - if (d->sz != 1) - printf ("=%lx", (val >> off) & ((1 << d->sz) - 1)); - } - if (d == desc) - break; - d--; - } -} - -void print_tr (vcpu_guest_context_t *ctx) -{ - struct vcpu_tr_regs *tr = &ctx->regs.tr; - int i; - - printf ("\n itr: P rid va pa ps ed pl " - "ar a d ma key\n"); - - for (i = 0; i < sizeof (tr->itrs) / sizeof (tr->itrs[0]); i++) - print_a_tr (i, &tr->itrs[i]); - - printf ("\n dtr: P rid va pa ps ed pl " - "ar a d ma key\n"); - - for (i = 0; i < sizeof (tr->dtrs) / sizeof (tr->dtrs[0]); i++) - print_a_tr (i, &tr->dtrs[i]); -} - -int lock_pages (void *addr, size_t len); -void unlock_pages (void *addr, size_t len); -int do_xen_hypercall (xc_interface *xc_handle, privcmd_hypercall_t *hypercall); - -#ifdef HAVE_DEBUG_OP -static int do_ia64_debug_op (xc_interface *xc_handle, - unsigned long cmd, unsigned long domain, - xen_ia64_debug_op_t *op) -{ - int ret = -1; - privcmd_hypercall_t hypercall; - - hypercall.op = __HYPERVISOR_ia64_debug_op; - hypercall.arg[0] = cmd; - hypercall.arg[1] = domain; - hypercall.arg[2] = (unsigned long)op; - - if (lock_pages (op, sizeof (*op)) != 0) { - perror ("Could not lock memory for Xen hypercall"); - goto out1; - } - - ret = do_xen_hypercall (xc_handle, &hypercall); - if (ret < 0) { - if (errno == EACCES) - fprintf (stderr,"domctl operation failed -- need to " - "rebuild the user-space tool set?\n"); - } - - unlock_pages (op, sizeof (*op)); - -out1: - return ret; -} -#endif - -static volatile int ctrl_c_hit; - -void ctrl_c_handler (int sig) -{ - ctrl_c_hit = 1; -} - -int wait_domain (int vcpu, vcpu_guest_context_t *ctx) -{ - struct timespec ts; - xc_dominfo_t dominfo; - int ret; - int cnt = 0; - - ts.tv_sec = 0; - ts.tv_nsec = 10*1000*1000; - - ret = xc_domain_unpause (xc_handle, domid); - if (ret < 0) - perror ("xc_domain_unpause"); - - ctrl_c_hit = 0; - - while (1) { - ret = xc_domain_getinfo (xc_handle, domid, 1, &dominfo); - if (ret < 0) - perror ("xc_domain_getinfo"); - - if (dominfo.paused) - break; - - if (ctrl_c_hit) { - fflush (stdout); - /* Force pause. */ - ret = xc_domain_pause (xc_handle, domid); - if (ret < 0) - perror ("xc_domain_pause"); - - break; - } - - printf ("%c\b", "/-\\|"[(cnt++) % 4]); - fflush (stdout); - nanosleep (&ts, NULL); - } - return xc_ia64_vcpu_getcontext (xc_handle, domid, vcpu, ctx); -} - -int virt_to_phys (int is_inst, unsigned long vaddr, unsigned long *paddr) -{ - struct vcpu_tr_regs *trs = &cur_ctx->regs.tr; - struct ia64_tr_entry *tr; - int i; - int num; - - /* Search in tr. */ - if (is_inst) { - tr = trs->itrs; - num = sizeof (trs->itrs) / sizeof (trs->itrs[0]); - } - else { - tr = trs->dtrs; - num = sizeof (trs->dtrs) / sizeof (trs->dtrs[0]); - } - for (i = 0; i < num; i++, tr++) { - int ps_val = (tr->itir >> ITIR_PS_SHIFT) & ITIR_PS_MASK; - unsigned long ps_mask = (-1L) << ps_val; - - if ((tr->vadr & ps_mask) == (vaddr & ps_mask)) { - *paddr = ((tr->pte & (PTE_PPN_MASK << PTE_PPN_SHIFT)) & ps_mask) | - (vaddr & ~ps_mask); - return 0; - } - } - return -1; -} - -unsigned long * -get_reg_addr (const char *name) -{ - if (strcmp (name, "ip") == 0) - return &cur_ctx->regs.ip; - else if (strcmp (name, "psr") == 0) - return &cur_ctx->regs.psr; - else if (strcmp (name, "iip") == 0) - return &cur_ctx->regs.cr.iip; - else if (strcmp (name, "b0") == 0) - return &cur_ctx->regs.b[0]; - else - return 0; -} - -enum prio_expr {EXPR_BASE, EXPR_SUM, EXPR_LOGIC, EXPR_PROD}; - -int parse_expr (char **buf, unsigned long *res, enum prio_expr prio); - -int next_char (char **buf) -{ - char *b; - - b = *buf; - while (isspace ((unsigned char)*b)) - b++; - *buf = b; - return *b; -} - -int parse_unary (char **buf, unsigned long *res) -{ - char c; - - c = next_char (buf); - switch (c) { - case '0' ... '9': - { - char *e; - *res = strtoul (*buf, &e, 0); - if (e == *buf) { - printf ("bad literal\n"); - return -1; - } - *buf = e; - } - break; - case '+': - (*buf)++; - return parse_unary (buf, res); - case '$': - { - char *b; - char *e; - char c; - unsigned long *reg; - int len; - - b = *buf; - e = b + 1; - - while ((*e >= 'a' && *e <= 'z') || - (*e >= 'A' && *e <= 'Z') || - (*e >= '0' && *e <= '9') || - (*e == '_' || *e == '.')) - e++; - - if (b == e) { - printf ("identifier missing after '$'\n"); - return -1; - } - - b++; - len = e - b; - - c = b[len]; - b[len] = 0; - reg = get_reg_addr (b); - b[len] = c; - - if (reg != NULL) - *res = *reg; - else if (strncmp (b, "d2p", len) == 0 || - strncmp (b, "i2p", len) == 0) { - unsigned long vaddr; - - *buf = e; - if (parse_unary (buf, &vaddr) != 0) - return -1; - if (virt_to_phys (*b == 'i', vaddr, res) != 0) { - printf ("cannot find vaddr %016lx in tr\n", vaddr); - return -1; - } - return 0; - } - else { - printf ("unknown symbol\n"); - return -1; - } - *buf = e; - } - break; - case '(': - (*buf)++; - if (parse_expr (buf, res, EXPR_BASE) != 0) - return -1; - - if (next_char (buf) != ')') { - printf ("missing ')'\n"); - return -1; - } - else - (*buf)++; - break; - default: - printf ("unknown operand '%c' in expression\n", c); - return -1; - } - - return 0; -} - -int parse_expr (char **buf, unsigned long *res, enum prio_expr prio) -{ - unsigned long val = 0; - unsigned long val1; - char c; - - if (parse_unary (buf, &val) != 0) - return -1; - - while (1) { - c = next_char (buf); - switch (c) { - case '+': - case '-': - if (prio > EXPR_SUM) - return 0; - (*buf)++; - if (parse_expr (buf, &val1, EXPR_SUM) < 0) - return -1; - if (c == '+') - val += val1; - else - val -= val1; - break; - case '*': - if (prio > EXPR_PROD) - return 0; - - (*buf)++; - if (parse_expr (buf, &val1, EXPR_SUM) < 0) - return -1; - - val *= val1; - break; - default: - *res = val; - return 0; - } - } -} - -char *parse_arg (char **buf) -{ - char *res; - char *b = *buf; - - /* Eat leading spaces. */ - while (isspace ((unsigned char)*b)) - b++; - - res = b; - while (*b && !isspace ((unsigned char)*b)) - b++; - - /* Set the NUL terminator. */ - if (*b) - *b++ = 0; - - *buf = b; - return res; -} - -vcpu_guest_context_any_t *vcpu_ctx_any; - -int vcpu_setcontext (int vcpu) -{ - int ret; - - ret = xc_vcpu_setcontext (xc_handle, domid, vcpu, &vcpu_ctx_any[vcpu]); - if (ret < 0) - perror ("xc_vcpu_setcontext"); - - return ret; -} - -enum cmd_status { CMD_ERROR, CMD_OK, CMD_REPEAT, CMD_QUIT }; - -struct command_desc -{ - const char *name; - const char *help; - enum cmd_status (*cmd)(char *line); -}; - -static enum cmd_status -cmd_registers (char *line) -{ - print_ctx (cur_ctx); - return CMD_OK; -} - -static enum cmd_status -cmd_sstep (char *line) -{ - /* Set psr.dd and psr.id to skip over current breakpoint. */ - cur_ctx->regs.psr |= PSR_SS | PSR_DD | PSR_ID; - cur_ctx->regs.psr &= ~PSR_TB; - if (vcpu_setcontext (cur_vcpu) < 0) - return CMD_ERROR; - - if (wait_domain (cur_vcpu, cur_ctx) < 0) { - perror ("wait_domain"); - return CMD_ERROR; - } - - print_ctx (cur_ctx); - - return CMD_REPEAT; -} - -static enum cmd_status -cmd_go (char *line) -{ - unsigned long n = 1; - - if (*line != 0) { - if (parse_expr (&line, &n, 0) < 0) - return CMD_ERROR; - } - while (n > 0) { - /* Set psr.dd and psr.id to skip over current breakpoint. */ - if ((cur_ctx->regs.psr & (PSR_SS | PSR_TB | PSR_DB)) != 0) { - cur_ctx->regs.psr &= ~(PSR_SS | PSR_TB); - cur_ctx->regs.psr |= PSR_DD | PSR_ID; - if (vcpu_setcontext (cur_vcpu) < 0) - return CMD_ERROR; - } - - if (wait_domain (cur_vcpu, cur_ctx) < 0) { - perror ("wait_domain"); - return CMD_ERROR; - } - print_ctx (cur_ctx); - n--; - } - - return CMD_REPEAT; -} - -static enum cmd_status -cmd_cb (char *line) -{ - if ((cur_ctx->regs.psr & (PSR_SS | PSR_TB)) != PSR_TB) { - cur_ctx->regs.psr &= ~PSR_SS; - cur_ctx->regs.psr |= PSR_TB; - if (vcpu_setcontext (cur_vcpu) < 0) - return CMD_ERROR; - } - - if (wait_domain (cur_vcpu, cur_ctx) < 0) { - perror ("wait_domain"); - return CMD_ERROR; - } - - print_ctx (cur_ctx); - - return CMD_REPEAT; -} - -static int quit_paused; - -static enum cmd_status -cmd_quit (char *line) -{ - if (!strcmp (line, "paused")) - quit_paused = 1; - return CMD_QUIT; -} - -static enum cmd_status -cmd_echo (char *line) -{ - printf ("%s", line); - return CMD_OK; -} - -static enum cmd_status -cmd_disassemble (char *args) -{ - static unsigned long addr; - unsigned long end_addr = addr + 16; - - if (*args != 0) { - if (parse_expr (&args, &addr, 0) < 0) - return CMD_ERROR; - if (*args != 0) { - if (parse_expr (&args, &end_addr, 0) < 0) - return CMD_ERROR; - } - else - end_addr = addr + 16; - } - target_disas (stdout, addr, end_addr - addr); - addr = end_addr; - return CMD_REPEAT; -} - -static enum cmd_status -cmd_dump (char *args) -{ - static unsigned long addr; - unsigned long end_addr = addr + 256; - unsigned long p; - - if (*args != 0) { - if (parse_expr (&args, &addr, 0) < 0) - return CMD_ERROR; - if (*args != 0) { - if (parse_expr (&args, &end_addr, 0) < 0) - return CMD_ERROR; - } - else - end_addr = addr + 256; - } - for (p = addr; p < end_addr; p += 16) { - int i; - printf ("%016lx:", p); - for (i = 0; i < 16; i++) { - unsigned char *m = target_map_memory (p + i); - printf ("%c%02x", i == 8 ? '-' : ' ', *m); - } - printf ("\n"); - } - addr = end_addr; - return CMD_REPEAT; -} - -static enum cmd_status -cmd_break (char *args) -{ - unsigned long addr; - int i; - - for (i = 0; i < 4; i++) - if (cur_ctx->regs.ibr[2 * i] == 0 && cur_ctx->regs.ibr[2 * i + 1] == 0) - break; - - if (i == 4) { - printf ("no availabe break points\n"); - return CMD_ERROR; - } - - if (parse_expr (&args, &addr, 0) < 0) - return CMD_ERROR; - - cur_ctx->regs.ibr[2 * i] = addr; - cur_ctx->regs.ibr[2 * i + 1] = 0x87fffffffffffff0UL; - cur_ctx->regs.psr |= PSR_DB; - - if (vcpu_setcontext (cur_vcpu) < 0) - return CMD_ERROR; - else - return CMD_OK; -} - -static enum cmd_status -cmd_watch (char *args) -{ - unsigned long addr; - unsigned long mask; - int i; - - for (i = 0; i < 4; i++) - if (cur_ctx->regs.dbr[2 * i] == 0 && cur_ctx->regs.dbr[2 * i + 1] == 0) - break; - - if (i == 4) { - printf ("no availabe watch points\n"); - return CMD_ERROR; - } - - if (parse_expr (&args, &addr, 0) < 0) - return CMD_ERROR; - - if (*args == 0) - mask = 3; - else if (parse_expr (&args, &mask, 0) < 0) - return CMD_ERROR; - - cur_ctx->regs.dbr[2 * i] = addr; - cur_ctx->regs.dbr[2 * i + 1] = ~((1UL << mask) - 1) | (0xc7UL << 56); - cur_ctx->regs.psr |= PSR_DB; - - if (vcpu_setcontext (cur_vcpu) < 0) - return CMD_ERROR; - else { - printf ("Watchpoint %d set\n", i); - return CMD_OK; - } -} - -static enum cmd_status -cmd_delete (char *args) -{ - unsigned long num; - - if (parse_expr (&args, &num, 0) < 0) - return CMD_ERROR; - - if (num < 4) { - cur_ctx->regs.ibr[2 * num] = 0; - cur_ctx->regs.ibr[2 * num + 1] = 0; - } - else if (num < 8) { - num -= 4; - cur_ctx->regs.dbr[2 * num] = 0; - cur_ctx->regs.dbr[2 * num + 1] = 0; - } - else { - printf ("breakpoint out of range\n"); - return CMD_ERROR; - } - - cur_ctx->regs.psr |= PSR_DB; - - if (vcpu_setcontext (cur_vcpu) < 0) - return CMD_ERROR; - else - return CMD_OK; -} - -static enum cmd_status -cmd_disable (char *args) -{ - unsigned long num; - - if (parse_expr (&args, &num, 0) < 0) - return CMD_ERROR; - - if (num >= 4) { - printf ("breakpoint out of range\n"); - return CMD_ERROR; - } - - cur_ctx->regs.ibr[2 * num + 1] &= ~(1UL << 63); - - if (vcpu_setcontext (cur_vcpu) < 0) - return CMD_ERROR; - else - return CMD_OK; -} - -static enum cmd_status -cmd_enable (char *args) -{ - unsigned long num; - - if (parse_expr (&args, &num, 0) < 0) - return CMD_ERROR; - - if (num >= 4) { - printf ("breakpoint out of range\n"); - return CMD_ERROR; - } - - cur_ctx->regs.ibr[2 * num + 1] |= 1UL << 63; - - if (vcpu_setcontext (cur_vcpu) < 0) - return CMD_ERROR; - else - return CMD_OK; -} - -static enum cmd_status -cmd_print (char *args) -{ - unsigned long addr; - - if (parse_expr (&args, &addr, 0) < 0) - return CMD_ERROR; - - printf ("res: 0x%016lx = %ld\n", addr, addr); - - return CMD_OK; -} - -struct bit_xlat { - unsigned int bit; - const char *name; -}; - -static const struct bit_xlat debug_flags[] = { - { XEN_IA64_DEBUG_ON_KERN_SSTEP, "sstep" }, - { XEN_IA64_DEBUG_ON_KERN_DEBUG, "debug" }, - { XEN_IA64_DEBUG_ON_KERN_TBRANCH, "tbranch" }, - { XEN_IA64_DEBUG_ON_EXTINT, "extint" }, - { XEN_IA64_DEBUG_ON_EXCEPT, "except" }, - { XEN_IA64_DEBUG_ON_EVENT, "event" }, - { XEN_IA64_DEBUG_ON_PRIVOP, "privop" }, - { XEN_IA64_DEBUG_ON_PAL, "pal" }, - { XEN_IA64_DEBUG_ON_SAL, "sal" }, - { XEN_IA64_DEBUG_ON_EFI, "efi" }, - { XEN_IA64_DEBUG_ON_RFI, "rfi" }, - { XEN_IA64_DEBUG_ON_MMU, "mmu" }, - { XEN_IA64_DEBUG_ON_BAD_MPA, "mpa" }, - { XEN_IA64_DEBUG_FORCE_SS, "ss" }, - { XEN_IA64_DEBUG_FORCE_DB, "db" }, - { XEN_IA64_DEBUG_ON_TR, "tr" }, - { XEN_IA64_DEBUG_ON_TC, "tc" }, -#if 0 - { XEN_IA64_DEBUG_ON_KEYS, "keys" }, - { XEN_IA64_DEBUG_ON_MOV_TO_CR, "mov_to_cr" }, - { XEN_IA64_DEBUG_ON_VHPT, "vhpt" }, - { XEN_IA64_DEBUG_ON_IOSAPIC, "iosapic" }, -#endif - { 0, NULL } -}; - -static enum cmd_status -cmd_disp (char *arg) -{ - if (strcmp (arg, "br") == 0) - print_br (cur_ctx); - else if (strcmp (arg, "regs") == 0) - print_regs (cur_ctx); - else if (strcmp (arg, "cr") == 0) - print_cr (cur_ctx); - else if (strcmp (arg, "ar") == 0) - print_ar (cur_ctx); - else if (strcmp (arg, "tr") == 0) - print_tr (cur_ctx); - else if (strcmp (arg, "rr") == 0) - print_rr (cur_ctx); - else if (strcmp (arg, "db") == 0) - print_db (cur_ctx); - else if (strcmp (arg, "psr") == 0) { - printf ("psr:"); - print_bits (psr_bits, cur_ctx->regs.psr); - printf ("\n"); - } - else if (strcmp (arg, "ipsr") == 0) { - printf ("ipsr:"); - print_bits (psr_bits, cur_ctx->regs.cr.ipsr); - printf ("\n"); - } - else if (strcmp (arg, "break") == 0) { - int i; - - for (i = 0; i < 4; i++) - if (cur_ctx->regs.ibr[2 * i + 1]) - printf ("%d: 0x%016lx %s\n", i, cur_ctx->regs.ibr[2 * i], - (cur_ctx->regs.ibr[2 * i + 1] & (1UL << 63)) ? - "enabled" : "disabled"); - for (i = 0; i < 4; i++) - if (cur_ctx->regs.dbr[2 * i + 1]) - printf ("%d: 0x%016lx %s\n", i, cur_ctx->regs.dbr[2 * i], - (cur_ctx->regs.dbr[2 * i + 1] & (1UL << 63)) ? - "enabled" : "disabled"); - } - else if (strcmp (arg, "domain") == 0) { - xc_dominfo_t dominfo; -#ifdef HAVE_DEBUG_OP - xen_ia64_debug_op_t debug_op; - int i; -#endif - if (xc_domain_getinfo (xc_handle, domid, 1, &dominfo) < 0) { - perror ("xc_domain_getinfo"); - return 0; - } - - printf ("id=%d nr_pages=%lu shared_info_frame=%lu max_mem=%luKB\n", - dominfo.domid, dominfo.nr_pages, dominfo.shared_info_frame, - dominfo.max_memkb); - printf (" nr_online_vcpu=%u max_vcpu_id=%u\n", - dominfo.nr_online_vcpus, dominfo.max_vcpu_id); - printf (" status:"); - if (dominfo.dying) - printf (" dying"); - if (dominfo.crashed) - printf (" crashed"); - if (dominfo.shutdown) - printf (" shutdown(%u)", dominfo.shutdown_reason); - if (dominfo.paused) - printf (" paused"); - if (dominfo.blocked) - printf (" blocked"); - if (dominfo.running) - printf (" running"); - if (dominfo.hvm) - printf (" hvm"); - if (dominfo.debugged) - printf (" debug"); - printf ("\n"); - -#ifdef HAVE_DEBUG_OP - if (do_ia64_debug_op (xc_handle, XEN_IA64_DEBUG_OP_GET_FLAGS, - domid, &debug_op) < 0) { - perror ("xc_domain_getinfo"); - return 0; - } - printf ("debug flags: %08lx: ", debug_op.flags); - for (i = 0; debug_flags[i].name; i++) - if (debug_flags[i].bit & debug_op.flags) - printf (" %s", debug_flags[i].name); - printf ("\n"); -#endif - } - else if (*arg == 0) - printf ("choose among br, regs, cr, ar, tr, rr, db\n"); - else { - printf ("cannot disp '%s'\n", arg); - return CMD_ERROR; - } - return CMD_OK; -} - -static enum cmd_status -cmd_bev (char *arg) -{ - xen_ia64_debug_op_t debug_op; - int i; - - if (do_ia64_debug_op (xc_handle, XEN_IA64_DEBUG_OP_GET_FLAGS, - domid, &debug_op) < 0) { - perror ("get debug flags"); - return CMD_ERROR; - } - if (arg == NULL || arg[0] == 0) { - printf ("debug flags: %08lx:\n", debug_op.flags); - for (i = 0; debug_flags[i].name; i++) - printf (" %c%s\n", - (debug_flags[i].bit & debug_op.flags) ? '+' : '-', - debug_flags[i].name); - return CMD_OK; - } - else { - char *p = strtok ((char *)arg, " "); - - while (p != NULL) { - unsigned int flag = 0; - - for (i = 0; debug_flags[i].name; i++) - if (strcmp (p, debug_flags[i].name) == 0 - || ((p[0] == '-' || p[0] == '+') - && strcmp (p + 1, debug_flags[i].name) == 0)) { - flag = debug_flags[i].bit; - break; - } - if (flag == 0) { - printf ("unknown event %s\n", p); - return CMD_ERROR; - } - if (p[0] == '-') - debug_op.flags &= ~flag; - else - debug_op.flags |= flag; - - p = strtok (NULL, " "); - } - if (do_ia64_debug_op (xc_handle, XEN_IA64_DEBUG_OP_SET_FLAGS, - domid, &debug_op) < 0) { - perror ("set debug flags"); - return CMD_ERROR; - } - /* Disabling force_SS and force_DB requires setting psr. */ - if (vcpu_setcontext (cur_vcpu) < 0) - return CMD_ERROR; - else - return CMD_OK; - } -} - -static enum cmd_status -cmd_set (char *line) -{ - char *reg; - unsigned long *addr; - unsigned long val; - - reg = parse_arg (&line); - - addr = get_reg_addr (reg); - if (addr == NULL) { - printf ("unknown register %s\n", reg); - return CMD_ERROR; - } - - if (parse_expr (&line, &val, 0) < 0) - return CMD_ERROR; - - *addr = val; - - if (vcpu_setcontext (cur_vcpu) < 0) - return CMD_ERROR; - else - return CMD_OK; -} - -const struct command_desc commands[]; - -static enum cmd_status -cmd_help (char *line) -{ - int i; - - for (i = 0; commands[i].name; i++) - printf ("%s -- %s\n", commands[i].name, commands[i].help); - - return CMD_OK; -} - -const struct command_desc commands[] = { - { "registers", "display current registers", cmd_registers }, - { "sstep", "single step", cmd_sstep }, - { "go", "resume execution", cmd_go }, - { "quit", "quit debugger", cmd_quit }, - { "echo", "display parameters", cmd_echo }, - { "disassemble", "disassemble memory", cmd_disassemble }, - { "dump", "dump memory", cmd_dump }, - { "break", "set a break point", cmd_break }, - { "watch", "set a watch point", cmd_watch }, - { "cb", "resume until branch", cmd_cb }, - { "delete", "delete a break point", cmd_delete }, - { "disable", "disable a break point", cmd_disable }, - { "enable", "enable a break point", cmd_enable }, - { "print", "print an expression", cmd_print }, - { "disp", "disp br/regs/cr/ar/tr/rr/db/psr/break/domain", cmd_disp}, - { "bev", "break on event", cmd_bev}, - { "set", "set reg val", cmd_set}, - { "help", "disp help", cmd_help }, - { NULL, NULL, NULL } -}; - - -enum cmd_status do_command (int vcpu, char *line) -{ - char *cmd; - char *args; - int i; - const struct command_desc *desc; - static const struct command_desc *last_desc; - enum cmd_status status; - int flag_ambiguous; - - cur_vcpu = vcpu; - cur_ctx = &vcpu_ctx_any[vcpu].c; - - /* Handle repeat last-command. */ - if (*line == 0) { - if (last_desc != NULL) - return (*last_desc->cmd)(""); - else - return CMD_OK; - } - last_desc = NULL; - - cmd = parse_arg (&line); - args = line; - - desc = NULL; - flag_ambiguous = 0; - - for (i = 0; commands[i].name; i++) { - const char *n = commands[i].name; - char *c = cmd; - - while (*n == *c && *n) - n++, c++; - - if (*c == 0) { - /* Match. */ - if (desc != NULL) { - if (!flag_ambiguous) - printf ("ambiguous command: %s", desc->name); - printf (", %s", commands[i].name); - flag_ambiguous = 1; - } - else - desc = &commands[i]; - } - } - - if (flag_ambiguous) { - printf ("\n"); - return CMD_ERROR; - } - else if (!desc) { - printf ("command not found, try help\n"); - return CMD_ERROR; - } - - status = (*desc->cmd)(args); - if (status == CMD_REPEAT) - last_desc = desc; - return status; -} - -void xenitp (int vcpu) -{ - int ret; - struct sigaction sa; - xc_dominfo_t dominfo; - - xc_handle = xc_interface_open (); /* for accessing control interface */ - - ret = xc_domain_getinfo (xc_handle, domid, 1, &dominfo); - if (ret < 0) { - perror ("xc_domain_getinfo"); - exit (-1); - } - - vcpu_ctx_any = calloc (sizeof(vcpu_ctx_any), dominfo.max_vcpu_id + 1); - if (!vcpu_ctx_any) { - perror ("vcpu context array alloc"); - exit (-1); - } - cur_ctx = &vcpu_ctx_any[vcpu].c; - - if (xc_domain_setdebugging (xc_handle, domid, 1) != 0) - perror ("setdebugging"); - - ret = xc_domain_pause (xc_handle, domid); - if (ret < 0) { - perror ("xc_domain_pause"); - exit (-1); - } - - ret = xc_ia64_vcpu_getcontext (xc_handle, domid, vcpu, cur_ctx); - if (ret < 0) { - perror ("xc_ia64_vcpu_getcontext"); - exit (-1); - } - - print_ctx (cur_ctx); - - /* Catch ctrl-c. */ - sa.sa_handler = &ctrl_c_handler; - sa.sa_flags = 0; - sigemptyset (&sa.sa_mask); - if (sigaction (SIGINT, &sa, NULL) != 0) - perror ("sigaction"); - - while (1) { - char buf[128]; - int len; - - printf ("XenITP> "); - fflush (stdout); - - if (fgets (buf, sizeof (buf), stdin) == NULL) - break; - - len = strlen ((char *)buf); - if (len >= 1 && buf[len - 1] == '\n') - buf[len - 1] = 0; - - ret = do_command (vcpu, buf); - if (ret == CMD_QUIT) - break; - } - - /* Clear debug bits. */ - if ((cur_ctx->regs.psr & (PSR_SS | PSR_TB | PSR_DB)) != 0) { - cur_ctx->regs.psr &= ~(PSR_SS | PSR_TB | PSR_DB); - cur_ctx->regs.psr |= PSR_DD | PSR_ID; - vcpu_setcontext (cur_vcpu); - } - - /* Disable debugging. */ - if (xc_domain_setdebugging (xc_handle, domid, 0) != 0) - perror ("setdebugging"); - - if (!quit_paused) { - ret = xc_domain_unpause (xc_handle, domid); - if (ret < 0) { - perror ("xc_domain_unpause"); - exit (-1); - } - } - - ret = xc_interface_close (xc_handle); - if (ret < 0) { - perror ("xc_interface_close"); - exit (-1); - } -} - -static void usage (void) -{ - printf ("usage:\n"); - printf (" xenitp <DOMAIN> [VCPU]\n"); - -} - -int main (int argc, char **argv) -{ - int ch; - static const char *sopts = "h" - ; - static const struct option lopts[] = { - {"help", 0, NULL, 'h'}, - {0, 0, 0, 0} - }; - int vcpu = 0; - - while ((ch = getopt_long (argc, argv, sopts, lopts, NULL)) != -1) { - switch (ch) { - case 'h': - usage (); - exit (-1); - case '?': - fprintf (stderr, "%s --help for more options\n", argv[0]); - exit (-1); - } - } - - argv += optind; - argc -= optind; - - if (argc < 1 || argc > 2) { - usage (); - exit (-1); - } - - domid = atoi (argv[0]); - if (domid == 0) { - fprintf (stderr, "cannot trace dom0\n"); - exit (-1); - } - - if (argc == 2) - vcpu = atoi (argv[1]); - - xenitp (vcpu); - - return 0; -} - -/* - * Local variables: - * mode: C - * c-set-style: "BSD" - * c-basic-offset: 4 - * tab-width: 4 - * indent-tabs-mode: nil - * End: - */ |