From e750d25e90a8c29ecc1bc063473ce657af0996dc Mon Sep 17 00:00:00 2001 From: Jason Thorpe Date: Sat, 11 May 2002 17:22:27 +0000 Subject: [PATCH] * Makefile.in (ALLDEPFILES): Remove i387-nat.c. (i387-nat.o): Delete dependency list. (go32-nat.o): Change i387-nat.h to i387-tdep.h. (x86-64-linux-nat.o): Likewise. * i387-nat.c: Delete file, moving contents to... * i387-tdep.c: ...here. * i387-nat.h: Rename... * i387-tdep.h: ...to this. * go32-nat.c: Include i387-tdep.h instead of i387-nat.h. * i386-linux-nat.c: Likewise. * i386bsd-nat.c: Likewise. * i386gnu-nat.c: Likewise. * i386nbsd-nat.c: Likewise. * i386v4-nat.c: Likewise. * x86-64-linux-nat.c: Likewise. * config/i386/fbsd.mh (NATDEPFILES): Remove i387-nat.o. * config/i386/go32.mh (NATDEPFILES): Likewise. * config/i386/i386gnu.mh (NATDEPFILES): Likewise. * config/i386/i386sol2.mh (NATDEPFILES): Likewise. * config/i386/i386v42mp.mh (NATDEPFILES): Likewise. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/nbsd.mh (NATDEPFILES): Likewise. * config/i386/nbsdelf.mh (NATDEPFILES): Likewise. * config/i386/obsd.mh (NATDEPFILES): Likewise. * config/i386/x86-64linux.mh (NATDEPFILES): Likewise. --- gdb/ChangeLog | 28 ++++ gdb/Makefile.in | 9 +- gdb/config/i386/fbsd.mh | 2 +- gdb/config/i386/go32.mh | 2 +- gdb/config/i386/i386gnu.mh | 2 +- gdb/config/i386/i386sol2.mh | 2 +- gdb/config/i386/i386v42mp.mh | 2 +- gdb/config/i386/linux.mh | 2 +- gdb/config/i386/nbsd.mh | 2 +- gdb/config/i386/nbsdelf.mh | 2 +- gdb/config/i386/obsd.mh | 2 +- gdb/config/i386/x86-64linux.mh | 2 +- gdb/go32-nat.c | 2 +- gdb/i386-linux-nat.c | 2 +- gdb/i386bsd-nat.c | 2 +- gdb/i386gnu-nat.c | 2 +- gdb/i386nbsd-nat.c | 2 +- gdb/i386v4-nat.c | 2 +- gdb/i387-nat.c | 335 ---------------------------------------- gdb/i387-tdep.c | 308 ++++++++++++++++++++++++++++++++++++ gdb/{i387-nat.h => i387-tdep.h} | 8 +- gdb/x86-64-linux-nat.c | 2 +- 22 files changed, 360 insertions(+), 362 deletions(-) delete mode 100644 gdb/i387-nat.c rename gdb/{i387-nat.h => i387-tdep.h} (95%) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index be0d4d9..870cd2a 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,33 @@ 2002-05-11 Jason Thorpe + * Makefile.in (ALLDEPFILES): Remove i387-nat.c. + (i387-nat.o): Delete dependency list. + (go32-nat.o): Change i387-nat.h to i387-tdep.h. + (x86-64-linux-nat.o): Likewise. + * i387-nat.c: Delete file, moving contents to... + * i387-tdep.c: ...here. + * i387-nat.h: Rename... + * i387-tdep.h: ...to this. + * go32-nat.c: Include i387-tdep.h instead of i387-nat.h. + * i386-linux-nat.c: Likewise. + * i386bsd-nat.c: Likewise. + * i386gnu-nat.c: Likewise. + * i386nbsd-nat.c: Likewise. + * i386v4-nat.c: Likewise. + * x86-64-linux-nat.c: Likewise. + * config/i386/fbsd.mh (NATDEPFILES): Remove i387-nat.o. + * config/i386/go32.mh (NATDEPFILES): Likewise. + * config/i386/i386gnu.mh (NATDEPFILES): Likewise. + * config/i386/i386sol2.mh (NATDEPFILES): Likewise. + * config/i386/i386v42mp.mh (NATDEPFILES): Likewise. + * config/i386/linux.mh (NATDEPFILES): Likewise. + * config/i386/nbsd.mh (NATDEPFILES): Likewise. + * config/i386/nbsdelf.mh (NATDEPFILES): Likewise. + * config/i386/obsd.mh (NATDEPFILES): Likewise. + * config/i386/x86-64linux.mh (NATDEPFILES): Likewise. + +2002-05-11 Jason Thorpe + * Makefile.in (ALLDEPFILES): Add alphabsd-tdep.c. (alphabsd-nat.o): Depend on alphabsd-tdep.h. (alphanbsd-nat.o): Likewise. diff --git a/gdb/Makefile.in b/gdb/Makefile.in index 4ff3105..cb9efcf 100644 --- a/gdb/Makefile.in +++ b/gdb/Makefile.in @@ -1192,7 +1192,7 @@ ALLDEPFILES = 29k-share/udi/udip2soc.c 29k-share/udi/udr.c \ i386-tdep.c i386b-nat.c i386mach-nat.c i386v-nat.c i386-linux-nat.c \ i386aix-nat.c i386m3-nat.c i386v4-nat.c i386ly-tdep.c \ i386bsd-nat.c i386bsd-tdep.c i386fbsd-nat.c \ - i387-tdep.c i387-nat.c \ + i387-tdep.c \ i386-linux-tdep.c i386-nat.c \ i960-tdep.c \ ia64-linux-nat.c ia64-linux-tdep.c ia64-tdep.c \ @@ -1557,7 +1557,7 @@ gdbtypes.o: gdbtypes.c $(bfd_h) $(complaints_h) $(defs_h) $(expression_h) \ $(target_h) $(value_h) $(gdb_string_h) $(wrapper_h) $(cp_abi_h) go32-nat.o: go32-nat.c $(defs_h) $(inferior_h) gdb_wait.h $(gdbcore_h) \ - $(command_h) $(floatformat_h) $(target_h) i387-nat.h $(regcache_h) + $(command_h) $(floatformat_h) $(target_h) i387-tdep.h $(regcache_h) gnu-nat.o: process_reply_S.h exc_request_S.h notify_S.h msg_reply_S.h \ exc_request_U.h msg_U.h gnu-nat.h @@ -1634,9 +1634,6 @@ i386v4-nat.o: i386v4-nat.c $(defs_h) $(regcache_h) i387-tdep.o: i387-tdep.c $(floatformat_h) $(defs_h) $(gdbcore_h) \ $(inferior_h) $(language_h) $(regcache_h) $(doublest_h) i386-tdep.h -i387-nat.o: i387-nat.c $(defs_h) $(inferior_h) $(value_h) $(regcache_h) \ - i387-nat.h - i960-tdep.o: i960-tdep.c $(floatformat_h) $(defs_h) $(expression_h) \ $(frame_h) $(gdbtypes_h) $(symtab_h) $(value_h) $(gdbcore_h) \ $(regcache_h) @@ -2162,7 +2159,7 @@ x86-64-tdep.o : x86-64-tdep.c $(defs_h) $(inferior_h) $(gdbcore_h) $(gdbcmd_h) \ $(dwarf2cfi_h) gdb_assert.h x86-64-linux-nat.o : x86-64-linux-nat.c $(defs_h) $(inferior_h) \ - $(gdbcore_h) $(regcache_h) i387-nat.h gdb_assert.h x86-64-tdep.h \ + $(gdbcore_h) $(regcache_h) i387-tdep.h gdb_assert.h x86-64-tdep.h \ i386-tdep.h win32-nat.o: win32-nat.c $(gdbcmd_h) $(gdbcore_h) $(inferior_h) $(defs_h) \ diff --git a/gdb/config/i386/fbsd.mh b/gdb/config/i386/fbsd.mh index 4509b9c..08d9e7d 100644 --- a/gdb/config/i386/fbsd.mh +++ b/gdb/config/i386/fbsd.mh @@ -4,4 +4,4 @@ XM_FILE= xm-i386.h NAT_FILE= nm-fbsd.h # NOTE: Do not spread NATDEPFILES over several lines - it hurts BSD make. -NATDEPFILES= fork-child.o infptrace.o inftarg.o solib.o solib-svr4.o solib-legacy.o corelow.o core-aout.o core-regset.o i386-nat.o i387-nat.o i386bsd-nat.o i386fbsd-nat.o gcore.o fbsd-proc.o +NATDEPFILES= fork-child.o infptrace.o inftarg.o solib.o solib-svr4.o solib-legacy.o corelow.o core-aout.o core-regset.o i386-nat.o i386bsd-nat.o i386fbsd-nat.o gcore.o fbsd-proc.o diff --git a/gdb/config/i386/go32.mh b/gdb/config/i386/go32.mh index 3d3bdfd..94a7a9d 100644 --- a/gdb/config/i386/go32.mh +++ b/gdb/config/i386/go32.mh @@ -7,7 +7,7 @@ MMALLOC_CFLAGS= XM_FILE= xm-go32.h NAT_FILE= nm-go32.h -NATDEPFILES= go32-nat.o i386-nat.o i387-nat.o +NATDEPFILES= go32-nat.o i386-nat.o TERMCAP= HOST_IPC= diff --git a/gdb/config/i386/i386gnu.mh b/gdb/config/i386/i386gnu.mh index 13feba5..da444a5 100644 --- a/gdb/config/i386/i386gnu.mh +++ b/gdb/config/i386/i386gnu.mh @@ -1,5 +1,5 @@ # Host: Intel 386 running the GNU Hurd -NATDEPFILES= i386gnu-nat.o i387-nat.o gnu-nat.o corelow.o core-regset.o \ +NATDEPFILES= i386gnu-nat.o gnu-nat.o corelow.o core-regset.o \ fork-child.o solib.o solib-svr4.o solib-legacy.o \ notify_S.o process_reply_S.o msg_reply_S.o \ msg_U.o exc_request_U.o exc_request_S.o diff --git a/gdb/config/i386/i386sol2.mh b/gdb/config/i386/i386sol2.mh index ab7f474..ec93f4a 100644 --- a/gdb/config/i386/i386sol2.mh +++ b/gdb/config/i386/i386sol2.mh @@ -4,5 +4,5 @@ XM_FILE= xm-i386v4.h XM_CLIBS= -lsocket -lnsl NAT_FILE= nm-i386sol2.h -NATDEPFILES= core-regset.o fork-child.o i386v4-nat.o i387-nat.o corelow.o \ +NATDEPFILES= core-regset.o fork-child.o i386v4-nat.o corelow.o \ procfs.o proc-api.o proc-events.o proc-flags.o proc-why.o gcore.o diff --git a/gdb/config/i386/i386v42mp.mh b/gdb/config/i386/i386v42mp.mh index 6479be3..4aac5d9 100644 --- a/gdb/config/i386/i386v42mp.mh +++ b/gdb/config/i386/i386v42mp.mh @@ -14,7 +14,7 @@ NAT_FILE= nm-i386v42mp.h # continuation character (backslash) to extend a commented line. As a # consequence, make considers subsequent tab-indented lines to be # some sort of error. -NATDEPFILES= corelow.o core-regset.o fork-child.o i386v4-nat.o i387-nat.o \ +NATDEPFILES= corelow.o core-regset.o fork-child.o i386v4-nat.o \ gcore.o solib.o solib-svr4.o solib-legacy.o procfs.o proc-api.o \ proc-events.o proc-flags.o proc-why.o uw-thread.o diff --git a/gdb/config/i386/linux.mh b/gdb/config/i386/linux.mh index cc645e9..494ccf1 100644 --- a/gdb/config/i386/linux.mh +++ b/gdb/config/i386/linux.mh @@ -4,7 +4,7 @@ XM_FILE= xm-i386.h NAT_FILE= nm-linux.h NATDEPFILES= infptrace.o inftarg.o fork-child.o corelow.o linux-proc.o \ - core-aout.o i386-nat.o i386-linux-nat.o i387-nat.o \ + core-aout.o i386-nat.o i386-linux-nat.o \ proc-service.o thread-db.o lin-lwp.o linux-proc.o gcore.o # The dynamically loaded libthread_db needs access to symbols in the diff --git a/gdb/config/i386/nbsd.mh b/gdb/config/i386/nbsd.mh index 66f4561..fdab53c 100644 --- a/gdb/config/i386/nbsd.mh +++ b/gdb/config/i386/nbsd.mh @@ -6,7 +6,7 @@ # continuation character (backslash) to extend a commented line. As a # consequence, BSD make considers subsequent tab-indented lines to be # "unassociated shell commands". -NATDEPFILES= fork-child.o infptrace.o inftarg.o corelow.o i387-nat.o i386bsd-nat.o i386nbsd-nat.o solib.o solib-sunos.o +NATDEPFILES= fork-child.o infptrace.o inftarg.o corelow.o i386bsd-nat.o i386nbsd-nat.o solib.o solib-sunos.o XM_FILE= xm-nbsd.h NAT_FILE= nm-nbsd.h diff --git a/gdb/config/i386/nbsdelf.mh b/gdb/config/i386/nbsdelf.mh index f25a406..0dda7d6 100644 --- a/gdb/config/i386/nbsdelf.mh +++ b/gdb/config/i386/nbsdelf.mh @@ -1,4 +1,4 @@ # Host: Intel 386 running NetBSD -NATDEPFILES= fork-child.o infptrace.o inftarg.o corelow.o i387-nat.o i386bsd-nat.o i386nbsd-nat.o solib.o solib-svr4.o solib-legacy.o +NATDEPFILES= fork-child.o infptrace.o inftarg.o corelow.o i386bsd-nat.o i386nbsd-nat.o solib.o solib-svr4.o solib-legacy.o XM_FILE= xm-nbsd.h NAT_FILE= nm-nbsdelf.h diff --git a/gdb/config/i386/obsd.mh b/gdb/config/i386/obsd.mh index 2bfd732..d9593ce 100644 --- a/gdb/config/i386/obsd.mh +++ b/gdb/config/i386/obsd.mh @@ -4,4 +4,4 @@ XM_FILE= xm-i386.h NAT_FILE= nm-obsd.h # NOTE: Do not spread NATDEPFILES over several lines - it hurts BSD make. -NATDEPFILES= fork-child.o infptrace.o inftarg.o solib.o solib-sunos.o corelow.o core-aout.o i386-nat.o i387-nat.o i386bsd-nat.o +NATDEPFILES= fork-child.o infptrace.o inftarg.o solib.o solib-sunos.o corelow.o core-aout.o i386-nat.o i386bsd-nat.o diff --git a/gdb/config/i386/x86-64linux.mh b/gdb/config/i386/x86-64linux.mh index a0a192c..bc79f3f 100644 --- a/gdb/config/i386/x86-64linux.mh +++ b/gdb/config/i386/x86-64linux.mh @@ -5,7 +5,7 @@ XM_FILE= xm-i386.h NAT_FILE= nm-x86-64.h NATDEPFILES= infptrace.o inftarg.o fork-child.o corelow.o \ core-aout.o i386-nat.o x86-64-linux-nat.o \ - i387-nat.o proc-service.o thread-db.o lin-lwp.o \ + proc-service.o thread-db.o lin-lwp.o \ linux-proc.o gcore.o LOADLIBES = -ldl -rdynamic diff --git a/gdb/go32-nat.c b/gdb/go32-nat.c index 7b64b17..a16b1b3 100644 --- a/gdb/go32-nat.c +++ b/gdb/go32-nat.c @@ -29,7 +29,7 @@ #include "gdbcmd.h" #include "floatformat.h" #include "buildsym.h" -#include "i387-nat.h" +#include "i387-tdep.h" #include "i386-tdep.h" #include "value.h" #include "regcache.h" diff --git a/gdb/i386-linux-nat.c b/gdb/i386-linux-nat.c index a0d19e7..e20e894 100644 --- a/gdb/i386-linux-nat.c +++ b/gdb/i386-linux-nat.c @@ -57,7 +57,7 @@ #include "gregset.h" /* Prototypes for i387_supply_fsave etc. */ -#include "i387-nat.h" +#include "i387-tdep.h" /* Defines for XMM0_REGNUM etc. */ #include "i386-tdep.h" diff --git a/gdb/i386bsd-nat.c b/gdb/i386bsd-nat.c index 5d35830..ad5a301 100644 --- a/gdb/i386bsd-nat.c +++ b/gdb/i386bsd-nat.c @@ -148,7 +148,7 @@ fill_gregset (gregset_t *gregsetp, int regno) regcache_collect (i, REG_ADDR (gregsetp, i)); } -#include "i387-nat.h" +#include "i387-tdep.h" /* Fill GDB's register array with the floating-point register values in *FPREGSETP. */ diff --git a/gdb/i386gnu-nat.c b/gdb/i386gnu-nat.c index e82fe0d..329ef2f 100644 --- a/gdb/i386gnu-nat.c +++ b/gdb/i386gnu-nat.c @@ -36,7 +36,7 @@ #include "i386-tdep.h" #include "gnu-nat.h" -#include "i387-nat.h" +#include "i387-tdep.h" #ifdef HAVE_SYS_PROCFS_H # include diff --git a/gdb/i386nbsd-nat.c b/gdb/i386nbsd-nat.c index 32a3d78..f8934cc 100644 --- a/gdb/i386nbsd-nat.c +++ b/gdb/i386nbsd-nat.c @@ -39,7 +39,7 @@ typedef struct fpreg fpregset_t; #include "gregset.h" /* Prototypes for i387_supply_fsave etc. */ -#include "i387-nat.h" +#include "i387-tdep.h" struct md_core { diff --git a/gdb/i386v4-nat.c b/gdb/i386v4-nat.c index 33dbde8..c67f1fb 100644 --- a/gdb/i386v4-nat.c +++ b/gdb/i386v4-nat.c @@ -27,7 +27,7 @@ #ifdef HAVE_SYS_REG_H #include #endif -#include "i387-nat.h" +#include "i387-tdep.h" #ifdef HAVE_SYS_PROCFS_H diff --git a/gdb/i387-nat.c b/gdb/i387-nat.c deleted file mode 100644 index 7cb42ba..0000000 --- a/gdb/i387-nat.c +++ /dev/null @@ -1,335 +0,0 @@ -/* Native-dependent code for the i387. - Copyright 2000, 2001, 2002 Free Software Foundation, Inc. - - 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 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. */ - -#include "defs.h" -#include "inferior.h" -#include "value.h" -#include "regcache.h" - -#include "i387-nat.h" -#include "i386-tdep.h" - -/* FIXME: kettenis/2000-05-21: Right now more than a few i386 targets - define their own routines to manage the floating-point registers in - GDB's register array. Most (if not all) of these targets use the - format used by the "fsave" instruction in their communication with - the OS. They should all be converted to use the routines below. */ - -/* At fsave_offset[REGNUM] you'll find the offset to the location in - the data structure used by the "fsave" instruction where GDB - register REGNUM is stored. */ - -static int fsave_offset[] = -{ - 28 + 0 * FPU_REG_RAW_SIZE, /* FP0_REGNUM through ... */ - 28 + 1 * FPU_REG_RAW_SIZE, - 28 + 2 * FPU_REG_RAW_SIZE, - 28 + 3 * FPU_REG_RAW_SIZE, - 28 + 4 * FPU_REG_RAW_SIZE, - 28 + 5 * FPU_REG_RAW_SIZE, - 28 + 6 * FPU_REG_RAW_SIZE, - 28 + 7 * FPU_REG_RAW_SIZE, /* ... FP7_REGNUM. */ - 0, /* FCTRL_REGNUM (16 bits). */ - 4, /* FSTAT_REGNUM (16 bits). */ - 8, /* FTAG_REGNUM (16 bits). */ - 16, /* FISEG_REGNUM (16 bits). */ - 12, /* FIOFF_REGNUM. */ - 24, /* FOSEG_REGNUM. */ - 20, /* FOOFF_REGNUM. */ - 18 /* FOP_REGNUM (bottom 11 bits). */ -}; - -#define FSAVE_ADDR(fsave, regnum) (fsave + fsave_offset[regnum - FP0_REGNUM]) - - -/* Fill register REGNUM in GDB's register array with the appropriate - value from *FSAVE. This function masks off any of the reserved - bits in *FSAVE. */ - -void -i387_supply_register (int regnum, char *fsave) -{ - /* Most of the FPU control registers occupy only 16 bits in - the fsave area. Give those a special treatment. */ - if (regnum >= FPC_REGNUM - && regnum != FIOFF_REGNUM && regnum != FOOFF_REGNUM) - { - unsigned char val[4]; - - memcpy (val, FSAVE_ADDR (fsave, regnum), 2); - val[2] = val[3] = 0; - if (regnum == FOP_REGNUM) - val[1] &= ((1 << 3) - 1); - supply_register (regnum, val); - } - else - supply_register (regnum, FSAVE_ADDR (fsave, regnum)); -} - -/* Fill GDB's register array with the floating-point register values - in *FSAVE. This function masks off any of the reserved - bits in *FSAVE. */ - -void -i387_supply_fsave (char *fsave) -{ - int i; - - for (i = FP0_REGNUM; i < XMM0_REGNUM; i++) - i387_supply_register (i, fsave); -} - -/* Fill register REGNUM (if it is a floating-point register) in *FSAVE - with the value in GDB's register array. If REGNUM is -1, do this - for all registers. This function doesn't touch any of the reserved - bits in *FSAVE. */ - -void -i387_fill_fsave (char *fsave, int regnum) -{ - int i; - - for (i = FP0_REGNUM; i < XMM0_REGNUM; i++) - if (regnum == -1 || regnum == i) - { - /* Most of the FPU control registers occupy only 16 bits in - the fsave area. Give those a special treatment. */ - if (i >= FPC_REGNUM - && i != FIOFF_REGNUM && i != FOOFF_REGNUM) - { - unsigned char buf[4]; - - regcache_collect (i, buf); - - if (i == FOP_REGNUM) - { - /* The opcode occupies only 11 bits. Make sure we - don't touch the other bits. */ - buf[1] &= ((1 << 3) - 1); - buf[1] |= ((FSAVE_ADDR (fsave, i))[1] & ~((1 << 3) - 1)); - } - memcpy (FSAVE_ADDR (fsave, i), buf, 2); - } - else - regcache_collect (i, FSAVE_ADDR (fsave, i)); - } -} - - -/* At fxsave_offset[REGNUM] you'll find the offset to the location in - the data structure used by the "fxsave" instruction where GDB - register REGNUM is stored. */ - -static int fxsave_offset[] = -{ - 32, /* FP0_REGNUM through ... */ - 48, - 64, - 80, - 96, - 112, - 128, - 144, /* ... FP7_REGNUM (80 bits each). */ - 0, /* FCTRL_REGNUM (16 bits). */ - 2, /* FSTAT_REGNUM (16 bits). */ - 4, /* FTAG_REGNUM (16 bits). */ - 12, /* FISEG_REGNUM (16 bits). */ - 8, /* FIOFF_REGNUM. */ - 20, /* FOSEG_REGNUM (16 bits). */ - 16, /* FOOFF_REGNUM. */ - 6, /* FOP_REGNUM (bottom 11 bits). */ - 160, /* XMM0_REGNUM through ... */ - 176, - 192, - 208, - 224, - 240, - 256, - 272, /* ... XMM7_REGNUM (128 bits each). */ - 24, /* MXCSR_REGNUM. */ -}; - -#define FXSAVE_ADDR(fxsave, regnum) \ - (fxsave + fxsave_offset[regnum - FP0_REGNUM]) - -static int i387_tag (unsigned char *raw); - - -/* Fill GDB's register array with the floating-point and SSE register - values in *FXSAVE. This function masks off any of the reserved - bits in *FXSAVE. */ - -void -i387_supply_fxsave (char *fxsave) -{ - int i; - - for (i = FP0_REGNUM; i <= MXCSR_REGNUM; i++) - { - /* Most of the FPU control registers occupy only 16 bits in - the fxsave area. Give those a special treatment. */ - if (i >= FPC_REGNUM && i < XMM0_REGNUM - && i != FIOFF_REGNUM && i != FOOFF_REGNUM) - { - unsigned char val[4]; - - memcpy (val, FXSAVE_ADDR (fxsave, i), 2); - val[2] = val[3] = 0; - if (i == FOP_REGNUM) - val[1] &= ((1 << 3) - 1); - else if (i== FTAG_REGNUM) - { - /* The fxsave area contains a simplified version of the - tag word. We have to look at the actual 80-bit FP - data to recreate the traditional i387 tag word. */ - - unsigned long ftag = 0; - int fpreg; - int top; - - top = (((FXSAVE_ADDR (fxsave, FSTAT_REGNUM))[1] >> 3) & 0x7); - - for (fpreg = 7; fpreg >= 0; fpreg--) - { - int tag; - - if (val[0] & (1 << fpreg)) - { - int regnum = (fpreg + 8 - top) % 8 + FP0_REGNUM; - tag = i387_tag (FXSAVE_ADDR (fxsave, regnum)); - } - else - tag = 3; /* Empty */ - - ftag |= tag << (2 * fpreg); - } - val[0] = ftag & 0xff; - val[1] = (ftag >> 8) & 0xff; - } - supply_register (i, val); - } - else - supply_register (i, FXSAVE_ADDR (fxsave, i)); - } -} - -/* Fill register REGNUM (if it is a floating-point or SSE register) in - *FXSAVE with the value in GDB's register array. If REGNUM is -1, do - this for all registers. This function doesn't touch any of the - reserved bits in *FXSAVE. */ - -void -i387_fill_fxsave (char *fxsave, int regnum) -{ - int i; - - for (i = FP0_REGNUM; i <= MXCSR_REGNUM; i++) - if (regnum == -1 || regnum == i) - { - /* Most of the FPU control registers occupy only 16 bits in - the fxsave area. Give those a special treatment. */ - if (i >= FPC_REGNUM && i < XMM0_REGNUM - && i != FIOFF_REGNUM && i != FDOFF_REGNUM) - { - unsigned char buf[4]; - - regcache_collect (i, buf); - - if (i == FOP_REGNUM) - { - /* The opcode occupies only 11 bits. Make sure we - don't touch the other bits. */ - buf[1] &= ((1 << 3) - 1); - buf[1] |= ((FXSAVE_ADDR (fxsave, i))[1] & ~((1 << 3) - 1)); - } - else if (i == FTAG_REGNUM) - { - /* Converting back is much easier. */ - - unsigned short ftag; - int fpreg; - - ftag = (buf[1] << 8) | buf[0]; - buf[0] = 0; - buf[1] = 0; - - for (fpreg = 7; fpreg >= 0; fpreg--) - { - int tag = (ftag >> (fpreg * 2)) & 3; - - if (tag != 3) - buf[0] |= (1 << fpreg); - } - } - memcpy (FXSAVE_ADDR (fxsave, i), buf, 2); - } - else - regcache_collect (i, FXSAVE_ADDR (fxsave, i)); - } -} - -/* Recreate the FTW (tag word) valid bits from the 80-bit FP data in - *RAW. */ - -static int -i387_tag (unsigned char *raw) -{ - int integer; - unsigned int exponent; - unsigned long fraction[2]; - - integer = raw[7] & 0x80; - exponent = (((raw[9] & 0x7f) << 8) | raw[8]); - fraction[0] = ((raw[3] << 24) | (raw[2] << 16) | (raw[1] << 8) | raw[0]); - fraction[1] = (((raw[7] & 0x7f) << 24) | (raw[6] << 16) - | (raw[5] << 8) | raw[4]); - - if (exponent == 0x7fff) - { - /* Special. */ - return (2); - } - else if (exponent == 0x0000) - { - if (fraction[0] == 0x0000 && fraction[1] == 0x0000 && !integer) - { - /* Zero. */ - return (1); - } - else - { - /* Special. */ - return (2); - } - } - else - { - if (integer) - { - /* Valid. */ - return (0); - } - else - { - /* Special. */ - return (2); - } - } -} diff --git a/gdb/i387-tdep.c b/gdb/i387-tdep.c index 2a6f77c..000264f 100644 --- a/gdb/i387-tdep.c +++ b/gdb/i387-tdep.c @@ -388,3 +388,311 @@ i387_float_info (void) printf_filtered ("Opcode: %s\n", local_hex_string_custom (fop ? (fop | 0xd800) : 0, "04")); } + +/* FIXME: kettenis/2000-05-21: Right now more than a few i386 targets + define their own routines to manage the floating-point registers in + GDB's register array. Most (if not all) of these targets use the + format used by the "fsave" instruction in their communication with + the OS. They should all be converted to use the routines below. */ + +/* At fsave_offset[REGNUM] you'll find the offset to the location in + the data structure used by the "fsave" instruction where GDB + register REGNUM is stored. */ + +static int fsave_offset[] = +{ + 28 + 0 * FPU_REG_RAW_SIZE, /* FP0_REGNUM through ... */ + 28 + 1 * FPU_REG_RAW_SIZE, + 28 + 2 * FPU_REG_RAW_SIZE, + 28 + 3 * FPU_REG_RAW_SIZE, + 28 + 4 * FPU_REG_RAW_SIZE, + 28 + 5 * FPU_REG_RAW_SIZE, + 28 + 6 * FPU_REG_RAW_SIZE, + 28 + 7 * FPU_REG_RAW_SIZE, /* ... FP7_REGNUM. */ + 0, /* FCTRL_REGNUM (16 bits). */ + 4, /* FSTAT_REGNUM (16 bits). */ + 8, /* FTAG_REGNUM (16 bits). */ + 16, /* FISEG_REGNUM (16 bits). */ + 12, /* FIOFF_REGNUM. */ + 24, /* FOSEG_REGNUM. */ + 20, /* FOOFF_REGNUM. */ + 18 /* FOP_REGNUM (bottom 11 bits). */ +}; + +#define FSAVE_ADDR(fsave, regnum) (fsave + fsave_offset[regnum - FP0_REGNUM]) + + +/* Fill register REGNUM in GDB's register array with the appropriate + value from *FSAVE. This function masks off any of the reserved + bits in *FSAVE. */ + +void +i387_supply_register (int regnum, char *fsave) +{ + /* Most of the FPU control registers occupy only 16 bits in + the fsave area. Give those a special treatment. */ + if (regnum >= FPC_REGNUM + && regnum != FIOFF_REGNUM && regnum != FOOFF_REGNUM) + { + unsigned char val[4]; + + memcpy (val, FSAVE_ADDR (fsave, regnum), 2); + val[2] = val[3] = 0; + if (regnum == FOP_REGNUM) + val[1] &= ((1 << 3) - 1); + supply_register (regnum, val); + } + else + supply_register (regnum, FSAVE_ADDR (fsave, regnum)); +} + +/* Fill GDB's register array with the floating-point register values + in *FSAVE. This function masks off any of the reserved + bits in *FSAVE. */ + +void +i387_supply_fsave (char *fsave) +{ + int i; + + for (i = FP0_REGNUM; i < XMM0_REGNUM; i++) + i387_supply_register (i, fsave); +} + +/* Fill register REGNUM (if it is a floating-point register) in *FSAVE + with the value in GDB's register array. If REGNUM is -1, do this + for all registers. This function doesn't touch any of the reserved + bits in *FSAVE. */ + +void +i387_fill_fsave (char *fsave, int regnum) +{ + int i; + + for (i = FP0_REGNUM; i < XMM0_REGNUM; i++) + if (regnum == -1 || regnum == i) + { + /* Most of the FPU control registers occupy only 16 bits in + the fsave area. Give those a special treatment. */ + if (i >= FPC_REGNUM + && i != FIOFF_REGNUM && i != FOOFF_REGNUM) + { + unsigned char buf[4]; + + regcache_collect (i, buf); + + if (i == FOP_REGNUM) + { + /* The opcode occupies only 11 bits. Make sure we + don't touch the other bits. */ + buf[1] &= ((1 << 3) - 1); + buf[1] |= ((FSAVE_ADDR (fsave, i))[1] & ~((1 << 3) - 1)); + } + memcpy (FSAVE_ADDR (fsave, i), buf, 2); + } + else + regcache_collect (i, FSAVE_ADDR (fsave, i)); + } +} + + +/* At fxsave_offset[REGNUM] you'll find the offset to the location in + the data structure used by the "fxsave" instruction where GDB + register REGNUM is stored. */ + +static int fxsave_offset[] = +{ + 32, /* FP0_REGNUM through ... */ + 48, + 64, + 80, + 96, + 112, + 128, + 144, /* ... FP7_REGNUM (80 bits each). */ + 0, /* FCTRL_REGNUM (16 bits). */ + 2, /* FSTAT_REGNUM (16 bits). */ + 4, /* FTAG_REGNUM (16 bits). */ + 12, /* FISEG_REGNUM (16 bits). */ + 8, /* FIOFF_REGNUM. */ + 20, /* FOSEG_REGNUM (16 bits). */ + 16, /* FOOFF_REGNUM. */ + 6, /* FOP_REGNUM (bottom 11 bits). */ + 160, /* XMM0_REGNUM through ... */ + 176, + 192, + 208, + 224, + 240, + 256, + 272, /* ... XMM7_REGNUM (128 bits each). */ + 24, /* MXCSR_REGNUM. */ +}; + +#define FXSAVE_ADDR(fxsave, regnum) \ + (fxsave + fxsave_offset[regnum - FP0_REGNUM]) + +static int i387_tag (unsigned char *raw); + + +/* Fill GDB's register array with the floating-point and SSE register + values in *FXSAVE. This function masks off any of the reserved + bits in *FXSAVE. */ + +void +i387_supply_fxsave (char *fxsave) +{ + int i; + + for (i = FP0_REGNUM; i <= MXCSR_REGNUM; i++) + { + /* Most of the FPU control registers occupy only 16 bits in + the fxsave area. Give those a special treatment. */ + if (i >= FPC_REGNUM && i < XMM0_REGNUM + && i != FIOFF_REGNUM && i != FOOFF_REGNUM) + { + unsigned char val[4]; + + memcpy (val, FXSAVE_ADDR (fxsave, i), 2); + val[2] = val[3] = 0; + if (i == FOP_REGNUM) + val[1] &= ((1 << 3) - 1); + else if (i== FTAG_REGNUM) + { + /* The fxsave area contains a simplified version of the + tag word. We have to look at the actual 80-bit FP + data to recreate the traditional i387 tag word. */ + + unsigned long ftag = 0; + int fpreg; + int top; + + top = (((FXSAVE_ADDR (fxsave, FSTAT_REGNUM))[1] >> 3) & 0x7); + + for (fpreg = 7; fpreg >= 0; fpreg--) + { + int tag; + + if (val[0] & (1 << fpreg)) + { + int regnum = (fpreg + 8 - top) % 8 + FP0_REGNUM; + tag = i387_tag (FXSAVE_ADDR (fxsave, regnum)); + } + else + tag = 3; /* Empty */ + + ftag |= tag << (2 * fpreg); + } + val[0] = ftag & 0xff; + val[1] = (ftag >> 8) & 0xff; + } + supply_register (i, val); + } + else + supply_register (i, FXSAVE_ADDR (fxsave, i)); + } +} + +/* Fill register REGNUM (if it is a floating-point or SSE register) in + *FXSAVE with the value in GDB's register array. If REGNUM is -1, do + this for all registers. This function doesn't touch any of the + reserved bits in *FXSAVE. */ + +void +i387_fill_fxsave (char *fxsave, int regnum) +{ + int i; + + for (i = FP0_REGNUM; i <= MXCSR_REGNUM; i++) + if (regnum == -1 || regnum == i) + { + /* Most of the FPU control registers occupy only 16 bits in + the fxsave area. Give those a special treatment. */ + if (i >= FPC_REGNUM && i < XMM0_REGNUM + && i != FIOFF_REGNUM && i != FDOFF_REGNUM) + { + unsigned char buf[4]; + + regcache_collect (i, buf); + + if (i == FOP_REGNUM) + { + /* The opcode occupies only 11 bits. Make sure we + don't touch the other bits. */ + buf[1] &= ((1 << 3) - 1); + buf[1] |= ((FXSAVE_ADDR (fxsave, i))[1] & ~((1 << 3) - 1)); + } + else if (i == FTAG_REGNUM) + { + /* Converting back is much easier. */ + + unsigned short ftag; + int fpreg; + + ftag = (buf[1] << 8) | buf[0]; + buf[0] = 0; + buf[1] = 0; + + for (fpreg = 7; fpreg >= 0; fpreg--) + { + int tag = (ftag >> (fpreg * 2)) & 3; + + if (tag != 3) + buf[0] |= (1 << fpreg); + } + } + memcpy (FXSAVE_ADDR (fxsave, i), buf, 2); + } + else + regcache_collect (i, FXSAVE_ADDR (fxsave, i)); + } +} + +/* Recreate the FTW (tag word) valid bits from the 80-bit FP data in + *RAW. */ + +static int +i387_tag (unsigned char *raw) +{ + int integer; + unsigned int exponent; + unsigned long fraction[2]; + + integer = raw[7] & 0x80; + exponent = (((raw[9] & 0x7f) << 8) | raw[8]); + fraction[0] = ((raw[3] << 24) | (raw[2] << 16) | (raw[1] << 8) | raw[0]); + fraction[1] = (((raw[7] & 0x7f) << 24) | (raw[6] << 16) + | (raw[5] << 8) | raw[4]); + + if (exponent == 0x7fff) + { + /* Special. */ + return (2); + } + else if (exponent == 0x0000) + { + if (fraction[0] == 0x0000 && fraction[1] == 0x0000 && !integer) + { + /* Zero. */ + return (1); + } + else + { + /* Special. */ + return (2); + } + } + else + { + if (integer) + { + /* Valid. */ + return (0); + } + else + { + /* Special. */ + return (2); + } + } +} diff --git a/gdb/i387-nat.h b/gdb/i387-tdep.h similarity index 95% rename from gdb/i387-nat.h rename to gdb/i387-tdep.h index 1637e9b..5bfd06e 100644 --- a/gdb/i387-nat.h +++ b/gdb/i387-tdep.h @@ -1,4 +1,4 @@ -/* Native-dependent code for the i387. +/* Target-dependent code for the i387. Copyright 2000, 2001 Free Software Foundation, Inc. This file is part of GDB. @@ -18,8 +18,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#ifndef I387_NAT_H -#define I387_NAT_H +#ifndef I387_TDEP_H +#define I387_TDEP_H /* Fill register REGNUM in GDB's register array with the appropriate value from *FSAVE. This function masks off any of the reserved @@ -53,4 +53,4 @@ extern void i387_supply_fxsave (char *fxsave); extern void i387_fill_fxsave (char *fxsave, int regnum); -#endif /* i387-nat.h */ +#endif /* i387-tdep.h */ diff --git a/gdb/x86-64-linux-nat.c b/gdb/x86-64-linux-nat.c index 3295327..f57a5f2 100644 --- a/gdb/x86-64-linux-nat.c +++ b/gdb/x86-64-linux-nat.c @@ -25,7 +25,7 @@ #include "inferior.h" #include "gdbcore.h" #include "regcache.h" -#include "i387-nat.h" +#include "i387-tdep.h" #include "gdb_assert.h" #include "x86-64-tdep.h" -- 2.7.4