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* i386-linux-tdep.h (I386_LINUX_NUM_REGS): New define.
* x86-64-linux-nat.c: Include "i386-linux-tdep.h" and "amd64.h". Change "register array" to "register cache" in comments. (x86_64_linux_gregset64_reg_offset): New variable. (GETREGS_SUPPLIES): Remove macro. (supply_gregset): Call amd64_supply_native_gregset instead of x86_64_linux_supply_gregset. (fill_gregset): Rename `regno' to `regnum'. Call amd64_collect_native_gregset instead of x86_64_linux_fill_gregset. (store_regs): Rename `regno' to `regnum'. (store_fpregs): Rename `regno' to `regnum'. (fetch_inferior_registers): Rename `regno' to `regnum'. Use amd64_native_gregset_supplies_p instead of GREGSET_SUPPLIES. Reorganize function a bit. (store_inferior_registers): Rename `regno' to `regnum'. Use amd64_native_gregset_supplies_p instead of GREGSET_SUPPLIES. Reorganize function a bit. (_initialize_x86_64_linux_nat): New function. * config/i386/x86-64linux.mh.
This commit is contained in:
Mark Kettenis
parent
546143b61a
commit
60fac5b81a
@ -1,3 +1,25 @@
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2003-08-29 Mark Kettenis <kettenis@gnu.org>
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* i386-linux-tdep.h (I386_LINUX_NUM_REGS): New define.
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* x86-64-linux-nat.c: Include "i386-linux-tdep.h" and "amd64.h".
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Change "register array" to "register cache" in comments.
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(x86_64_linux_gregset64_reg_offset): New variable.
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(GETREGS_SUPPLIES): Remove macro.
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(supply_gregset): Call amd64_supply_native_gregset instead of
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x86_64_linux_supply_gregset.
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(fill_gregset): Rename `regno' to `regnum'. Call
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amd64_collect_native_gregset instead of x86_64_linux_fill_gregset.
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(store_regs): Rename `regno' to `regnum'.
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(store_fpregs): Rename `regno' to `regnum'.
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(fetch_inferior_registers): Rename `regno' to `regnum'. Use
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amd64_native_gregset_supplies_p instead of GREGSET_SUPPLIES.
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Reorganize function a bit.
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(store_inferior_registers): Rename `regno' to `regnum'. Use
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amd64_native_gregset_supplies_p instead of GREGSET_SUPPLIES.
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Reorganize function a bit.
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(_initialize_x86_64_linux_nat): New function.
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* config/i386/x86-64linux.mh.
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2003-08-29 Andrew Cagney <cagney@redhat.com>
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* config/mips/tm-embed.h (STOPPED_BY_WATCHPOINT): Delete macro.
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@ -4,7 +4,7 @@ XM_FILE= xm-i386.h
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NAT_FILE= nm-x86-64linux.h
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NATDEPFILES= infptrace.o inftarg.o fork-child.o \
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i386-nat.o x86-64-linux-nat.o \
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i386-nat.o amd64-nat.o x86-64-linux-nat.o \
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linux-nat.o \
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proc-service.o thread-db.o lin-lwp.o linux-proc.o gcore.o
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@ -1,6 +1,6 @@
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/* Target-dependent code for GNU/Linux x86.
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Copyright 2002 Free Software Foundation, Inc.
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Copyright 2002, 2003 Free Software Foundation, Inc.
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This file is part of GDB.
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@ -33,4 +33,7 @@
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system call number that the kernel is supposed to restart. */
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#define I386_LINUX_ORIG_EAX_REGNUM I386_SSE_NUM_REGS
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/* Total number of registers for GNU/Linux. */
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#define I386_LINUX_NUM_REGS (I386_LINUX_ORIG_EAX_REGNUM + 1)
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#endif /* i386-linux-tdep.h */
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@ -50,13 +50,56 @@
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#include "x86-64-tdep.h"
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#include "x86-64-linux-tdep.h"
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#include "i386-linux-tdep.h"
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#include "amd64-nat.h"
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/* Mapping between the general-purpose registers in GNU/Linux x86-64
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`struct user' format and GDB's register cache layout. */
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static int x86_64_linux_gregset64_reg_offset[] =
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{
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RAX * 8, RBX * 8, /* %rax, %rbx */
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RCX * 8, RDX * 8, /* %rcx, %rdx */
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RSI * 8, RDI * 8, /* %rsi, %rdi */
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RBP * 8, RSP * 8, /* %rbp, %rsp */
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R8 * 8, R9 * 8, /* %r8 ... */
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R10 * 8, R11 * 8,
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R12 * 8, R13 * 8,
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R14 * 8, R15 * 8, /* ... %r15 */
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RIP * 8, EFLAGS * 8, /* %rip, %eflags */
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DS * 8, ES * 8, /* %ds, %es */
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FS * 8, GS * 8 /* %fs, %gs */
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};
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/* Mapping between the general-purpose registers in GNU/Linux x86-64
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`struct user' format and GDB's register cache layout for GNU/Linux
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i386.
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Note that most GNU/Linux x86-64 registers are 64-bit, while the
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GNU/Linux i386 registers are all 32-bit, but since we're
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little-endian we get away with that. */
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/* From <sys/reg.h> on GNU/Linux i386. */
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static int x86_64_linux_gregset32_reg_offset[] =
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{
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10 * 8, 11 * 8, /* %eax, %ecx */
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12 * 8, 13 * 8, /* %edx, %ebx */
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19 * 8, 4 * 8, /* %esp, %ebp */
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13 * 8, 14 * 8, /* %esi, %edi */
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16 * 8, 18 * 8, /* %eip, %eflags */
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17 * 8, 20 * 8, /* %cs, %ss */
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23 * 8, 24 * 8, /* %ds, %es */
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25 * 4, 26 * 4, /* %fs, %gs */
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-1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1,
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15 * 8 /* "orig_eax" */
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};
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/* Which ptrace request retrieves which registers?
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These apply to the corresponding SET requests as well. */
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#define GETREGS_SUPPLIES(regno) \
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(0 <= (regno) && (regno) < X86_64_NUM_GREGS)
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#define GETFPREGS_SUPPLIES(regno) \
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(FP0_REGNUM <= (regno) && (regno) <= MXCSR_REGNUM)
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@ -64,27 +107,27 @@
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/* Transfering the general-purpose registers between GDB, inferiors
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and core files. */
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/* Fill GDB's register array with the general-purpose register values
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/* Fill GDB's register cache with the general-purpose register values
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in *GREGSETP. */
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void
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supply_gregset (elf_gregset_t *gregsetp)
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{
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x86_64_linux_supply_gregset ((char *) gregsetp);
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amd64_supply_native_gregset (current_regcache, gregsetp, -1);
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}
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/* Fill register REGNO (if it is a general-purpose register) in
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*GREGSETPS with the value in GDB's register array. If REGNO is -1,
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/* Fill register REGNUM (if it is a general-purpose register) in
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*GREGSETP with the value in GDB's register cache. If REGNUM is -1,
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do this for all registers. */
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void
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fill_gregset (elf_gregset_t *gregsetp, int regno)
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fill_gregset (elf_gregset_t *gregsetp, int regnum)
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{
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x86_64_linux_fill_gregset ((char *) gregsetp, regno);
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amd64_collect_native_gregset (current_regcache, gregsetp, regnum);
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}
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/* Fetch all general-purpose registers from process/thread TID and
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store their values in GDB's register array. */
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store their values in GDB's register cache. */
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static void
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fetch_regs (int tid)
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@ -97,18 +140,18 @@ fetch_regs (int tid)
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supply_gregset (®s);
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}
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/* Store all valid general-purpose registers in GDB's register array
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/* Store all valid general-purpose registers in GDB's register cache
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into the process/thread specified by TID. */
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static void
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store_regs (int tid, int regno)
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store_regs (int tid, int regnum)
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{
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elf_gregset_t regs;
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if (ptrace (PTRACE_GETREGS, tid, 0, (long) ®s) < 0)
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perror_with_name ("Couldn't get registers");
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fill_gregset (®s, regno);
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fill_gregset (®s, regnum);
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if (ptrace (PTRACE_SETREGS, tid, 0, (long) ®s) < 0)
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perror_with_name ("Couldn't write registers");
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@ -117,7 +160,7 @@ store_regs (int tid, int regno)
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/* Transfering floating-point registers between GDB, inferiors and cores. */
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/* Fill GDB's register array with the floating-point and SSE register
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/* Fill GDB's register cache with the floating-point and SSE register
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values in *FPREGSETP. */
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void
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@ -127,7 +170,7 @@ supply_fpregset (elf_fpregset_t *fpregsetp)
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}
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/* Fill register REGNUM (if it is a floating-point or SSE register) in
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*FPREGSETP with the value in GDB's register array. If REGNUM is
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*FPREGSETP with the value in GDB's register cache. If REGNUM is
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-1, do this for all registers. */
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void
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@ -137,7 +180,7 @@ fill_fpregset (elf_fpregset_t *fpregsetp, int regnum)
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}
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/* Fetch all floating-point registers from process/thread TID and store
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thier values in GDB's register array. */
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thier values in GDB's register cache. */
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static void
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fetch_fpregs (int tid)
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@ -150,18 +193,18 @@ fetch_fpregs (int tid)
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supply_fpregset (&fpregs);
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}
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/* Store all valid floating-point registers in GDB's register array
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/* Store all valid floating-point registers in GDB's register cache
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into the process/thread specified by TID. */
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static void
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store_fpregs (int tid, int regno)
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store_fpregs (int tid, int regnum)
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{
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elf_fpregset_t fpregs;
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if (ptrace (PTRACE_GETFPREGS, tid, 0, (long) &fpregs) < 0)
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perror_with_name ("Couldn't get floating point status");
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fill_fpregset (&fpregs, regno);
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fill_fpregset (&fpregs, regnum);
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if (ptrace (PTRACE_SETFPREGS, tid, 0, (long) &fpregs) < 0)
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perror_with_name ("Couldn't write floating point status");
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@ -170,12 +213,12 @@ store_fpregs (int tid, int regno)
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/* Transferring arbitrary registers between GDB and inferior. */
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/* Fetch register REGNO from the child process. If REGNO is -1, do
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/* Fetch register REGNUM from the child process. If REGNUM is -1, do
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this for all registers (including the floating point and SSE
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registers). */
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void
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fetch_inferior_registers (int regno)
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fetch_inferior_registers (int regnum)
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{
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int tid;
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@ -184,35 +227,29 @@ fetch_inferior_registers (int regno)
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if (tid == 0)
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tid = PIDGET (inferior_ptid); /* Not a threaded program. */
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if (regno == -1)
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if (regnum == -1 || amd64_native_gregset_supplies_p (regnum))
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{
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fetch_regs (tid);
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fetch_fpregs (tid);
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if (regnum != -1)
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return;
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}
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if (GETREGS_SUPPLIES (regno))
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{
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fetch_regs (tid);
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return;
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}
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if (GETFPREGS_SUPPLIES (regno))
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if (regnum == -1 || GETFPREGS_SUPPLIES (regnum))
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{
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fetch_fpregs (tid);
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return;
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}
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internal_error (__FILE__, __LINE__,
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"Got request for bad register number %d.", regno);
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"Got request for bad register number %d.", regnum);
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}
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/* Store register REGNO back into the child process. If REGNO is -1,
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do this for all registers (including the floating-point and SSE
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/* Store register REGNUM back into the child process. If REGNUM is
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-1, do this for all registers (including the floating-point and SSE
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registers). */
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void
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store_inferior_registers (int regno)
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store_inferior_registers (int regnum)
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{
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int tid;
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@ -221,27 +258,21 @@ store_inferior_registers (int regno)
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if (tid == 0)
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tid = PIDGET (inferior_ptid); /* Not a threaded program. */
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if (regno == -1)
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if (regnum == -1 || amd64_native_gregset_supplies_p (regnum))
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{
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store_regs (tid, regno);
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store_fpregs (tid, regno);
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store_regs (tid, regnum);
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if (regnum != -1)
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return;
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}
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if (GETREGS_SUPPLIES (regno))
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if (regnum == -1 || GETFPREGS_SUPPLIES (regnum))
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{
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store_regs (tid, regno);
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return;
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}
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if (GETFPREGS_SUPPLIES (regno))
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{
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store_fpregs (tid, regno);
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store_fpregs (tid, regnum);
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return;
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}
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internal_error (__FILE__, __LINE__,
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"Got request to store bad register number %d.", regno);
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"Got request to store bad register number %d.", regnum);
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}
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@ -354,3 +385,20 @@ child_post_startup_inferior (ptid_t ptid)
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i386_cleanup_dregs ();
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linux_child_post_startup_inferior (ptid);
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}
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/* Provide a prototype to silence -Wmissing-prototypes. */
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void _initialize_x86_64_linux_nat (void);
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void
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_initialize_x86_64_linux_nat (void)
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{
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amd64_native_gregset32_reg_offset = x86_64_linux_gregset32_reg_offset;
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amd64_native_gregset32_num_regs = I386_LINUX_NUM_REGS;
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amd64_native_gregset64_reg_offset = x86_64_linux_gregset64_reg_offset;
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gdb_assert (ARRAY_SIZE (x86_64_linux_gregset32_reg_offset)
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== amd64_native_gregset32_num_regs);
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gdb_assert (ARRAY_SIZE (x86_64_linux_gregset64_reg_offset)
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== amd64_native_gregset64_num_regs);
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}
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