X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fi386bsd-nat.c;h=5d45c3384b2828c7f37bfdcff2c647e728417740;hb=93692b589dc7017d5a2fbdffdfad5f84f597d8f1;hp=5dcd0b3977cb7a99cdeca7bc9ff32424b6fd4e8f;hpb=0fb0cc7590113e9b459dfcc48dc71c9d419d9580;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/i386bsd-nat.c b/gdb/i386bsd-nat.c index 5dcd0b3977..5d45c3384b 100644 --- a/gdb/i386bsd-nat.c +++ b/gdb/i386bsd-nat.c @@ -1,7 +1,6 @@ /* Native-dependent code for modern i386 BSD's. - Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009 - Free Software Foundation, Inc. + Copyright (C) 2000-2016 Free Software Foundation, Inc. This file is part of GDB. @@ -22,9 +21,7 @@ #include "inferior.h" #include "regcache.h" -#include "gdb_assert.h" #include -#include #include #include #include @@ -84,6 +81,10 @@ static int i386bsd_r_reg_offset[] = so that we try PT_GETXMMREGS the first time around. */ static int have_ptrace_xmmregs = -1; #endif + +#ifdef PT_GETXSTATE_INFO +size_t i386bsd_xsave_len; +#endif /* Supply the general-purpose registers in GREGS, to REGCACHE. */ @@ -130,13 +131,14 @@ i386bsd_collect_gregset (const struct regcache *regcache, for all registers (including the floating point registers). */ static void -i386bsd_fetch_inferior_registers (struct regcache *regcache, int regnum) +i386bsd_fetch_inferior_registers (struct target_ops *ops, + struct regcache *regcache, int regnum) { if (regnum == -1 || GETREGS_SUPPLIES (regnum)) { struct reg regs; - if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), + if (ptrace (PT_GETREGS, get_ptrace_pid (inferior_ptid), (PTRACE_TYPE_ARG3) ®s, 0) == -1) perror_with_name (_("Couldn't get registers")); @@ -150,9 +152,26 @@ i386bsd_fetch_inferior_registers (struct regcache *regcache, int regnum) struct fpreg fpregs; #ifdef HAVE_PT_GETXMMREGS char xmmregs[512]; +#endif + +#ifdef PT_GETXSTATE_INFO + if (i386bsd_xsave_len != 0) + { + char *xstateregs; + + xstateregs = alloca (i386bsd_xsave_len); + if (ptrace (PT_GETXSTATE, get_ptrace_pid (inferior_ptid), + (PTRACE_TYPE_ARG3) xstateregs, 0) == -1) + perror_with_name (_("Couldn't get extended state status")); + i387_supply_xsave (regcache, -1, xstateregs); + return; + } +#endif + +#ifdef HAVE_PT_GETXMMREGS if (have_ptrace_xmmregs != 0 - && ptrace(PT_GETXMMREGS, PIDGET (inferior_ptid), + && ptrace(PT_GETXMMREGS, get_ptrace_pid (inferior_ptid), (PTRACE_TYPE_ARG3) xmmregs, 0) == 0) { have_ptrace_xmmregs = 1; @@ -160,18 +179,15 @@ i386bsd_fetch_inferior_registers (struct regcache *regcache, int regnum) } else { - if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), + have_ptrace_xmmregs = 0; +#endif + if (ptrace (PT_GETFPREGS, get_ptrace_pid (inferior_ptid), (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) perror_with_name (_("Couldn't get floating point status")); i387_supply_fsave (regcache, -1, &fpregs); +#ifdef HAVE_PT_GETXMMREGS } -#else - if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), - (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) - perror_with_name (_("Couldn't get floating point status")); - - i387_supply_fsave (regcache, -1, &fpregs); #endif } } @@ -180,19 +196,20 @@ i386bsd_fetch_inferior_registers (struct regcache *regcache, int regnum) this for all registers (including the floating point registers). */ static void -i386bsd_store_inferior_registers (struct regcache *regcache, int regnum) +i386bsd_store_inferior_registers (struct target_ops *ops, + struct regcache *regcache, int regnum) { if (regnum == -1 || GETREGS_SUPPLIES (regnum)) { struct reg regs; - if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), + if (ptrace (PT_GETREGS, get_ptrace_pid (inferior_ptid), (PTRACE_TYPE_ARG3) ®s, 0) == -1) perror_with_name (_("Couldn't get registers")); i386bsd_collect_gregset (regcache, ®s, regnum); - if (ptrace (PT_SETREGS, PIDGET (inferior_ptid), + if (ptrace (PT_SETREGS, get_ptrace_pid (inferior_ptid), (PTRACE_TYPE_ARG3) ®s, 0) == -1) perror_with_name (_("Couldn't write registers")); @@ -205,16 +222,37 @@ i386bsd_store_inferior_registers (struct regcache *regcache, int regnum) struct fpreg fpregs; #ifdef HAVE_PT_GETXMMREGS char xmmregs[512]; +#endif + +#ifdef PT_GETXSTATE_INFO + if (i386bsd_xsave_len != 0) + { + char *xstateregs; + + xstateregs = alloca (i386bsd_xsave_len); + if (ptrace (PT_GETXSTATE, get_ptrace_pid (inferior_ptid), + (PTRACE_TYPE_ARG3) xstateregs, 0) == -1) + perror_with_name (_("Couldn't get extended state status")); + + i387_collect_xsave (regcache, -1, xstateregs, 0); + + if (ptrace (PT_SETXSTATE, get_ptrace_pid (inferior_ptid), + (PTRACE_TYPE_ARG3) xstateregs, i386bsd_xsave_len) == -1) + perror_with_name (_("Couldn't write extended state status")); + return; + } +#endif +#ifdef HAVE_PT_GETXMMREGS if (have_ptrace_xmmregs != 0 - && ptrace(PT_GETXMMREGS, PIDGET (inferior_ptid), + && ptrace(PT_GETXMMREGS, get_ptrace_pid (inferior_ptid), (PTRACE_TYPE_ARG3) xmmregs, 0) == 0) { have_ptrace_xmmregs = 1; i387_collect_fxsave (regcache, regnum, xmmregs); - if (ptrace (PT_SETXMMREGS, PIDGET (inferior_ptid), + if (ptrace (PT_SETXMMREGS, get_ptrace_pid (inferior_ptid), (PTRACE_TYPE_ARG3) xmmregs, 0) == -1) perror_with_name (_("Couldn't write XMM registers")); } @@ -222,13 +260,13 @@ i386bsd_store_inferior_registers (struct regcache *regcache, int regnum) { have_ptrace_xmmregs = 0; #endif - if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), + if (ptrace (PT_GETFPREGS, get_ptrace_pid (inferior_ptid), (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) perror_with_name (_("Couldn't get floating point status")); i387_collect_fsave (regcache, regnum, &fpregs); - if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid), + if (ptrace (PT_SETFPREGS, get_ptrace_pid (inferior_ptid), (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) perror_with_name (_("Couldn't write floating point status")); #ifdef HAVE_PT_GETXMMREGS @@ -262,12 +300,24 @@ i386bsd_target (void) #define DBREG_DRX(d, x) ((&d->dr0)[x]) #endif +static unsigned long +i386bsd_dr_get (ptid_t ptid, int regnum) +{ + struct dbreg dbregs; + + if (ptrace (PT_GETDBREGS, get_ptrace_pid (inferior_ptid), + (PTRACE_TYPE_ARG3) &dbregs, 0) == -1) + perror_with_name (_("Couldn't read debug registers")); + + return DBREG_DRX ((&dbregs), regnum); +} + static void i386bsd_dr_set (int regnum, unsigned int value) { struct dbreg dbregs; - if (ptrace (PT_GETDBREGS, PIDGET (inferior_ptid), + if (ptrace (PT_GETDBREGS, get_ptrace_pid (inferior_ptid), (PTRACE_TYPE_ARG3) &dbregs, 0) == -1) perror_with_name (_("Couldn't get debug registers")); @@ -278,7 +328,7 @@ i386bsd_dr_set (int regnum, unsigned int value) DBREG_DRX ((&dbregs), regnum) = value; - if (ptrace (PT_SETDBREGS, PIDGET (inferior_ptid), + if (ptrace (PT_SETDBREGS, get_ptrace_pid (inferior_ptid), (PTRACE_TYPE_ARG3) &dbregs, 0) == -1) perror_with_name (_("Couldn't write debug registers")); } @@ -297,38 +347,30 @@ i386bsd_dr_set_addr (int regnum, CORE_ADDR addr) i386bsd_dr_set (regnum, addr); } -void -i386bsd_dr_reset_addr (int regnum) +CORE_ADDR +i386bsd_dr_get_addr (int regnum) { - gdb_assert (regnum >= 0 && regnum <= 4); - - i386bsd_dr_set (regnum, 0); + return i386bsd_dr_get (inferior_ptid, regnum); } unsigned long i386bsd_dr_get_status (void) { - struct dbreg dbregs; - - /* FIXME: kettenis/2001-03-31: Calling perror_with_name if the - ptrace call fails breaks debugging remote targets. The correct - way to fix this is to add the hardware breakpoint and watchpoint - stuff to the target vector. For now, just return zero if the - ptrace call fails. */ - if (ptrace (PT_GETDBREGS, PIDGET (inferior_ptid), - (PTRACE_TYPE_ARG3) &dbregs, 0) == -1) -#if 0 - perror_with_name (_("Couldn't read debug registers")); -#else - return 0; -#endif + return i386bsd_dr_get (inferior_ptid, 6); +} - return DBREG_DRX ((&dbregs), 6); +unsigned long +i386bsd_dr_get_control (void) +{ + return i386bsd_dr_get (inferior_ptid, 7); } #endif /* PT_GETDBREGS */ +/* Provide a prototype to silence -Wmissing-prototypes. */ +void _initialize_i386bsd_nat (void); + void _initialize_i386bsd_nat (void) {