[PATCH 1/7] gdbserver: remove support for LynxOS

Simon Marchi
2020-05-14T17:44:05Z

This port has been unmaintained for years, remove it.

gdbserver/ChangeLog:

* configure: Re-generate.
* configure.ac: Remove srv_lynxos test.
* configure.srv: Remove lynxos cases.
* lynx-i386-low.cc, lynx-low.cc, lynx-low.h, lynx-ppc-low.c:
Remove.
---
gdbserver/configure | 2 -
gdbserver/configure.ac | 2 -
gdbserver/configure.srv | 13 -
gdbserver/lynx-i386-low.cc | 358 ------------------
gdbserver/lynx-low.cc | 747 -------------------------------------
gdbserver/lynx-low.h | 102 -----
gdbserver/lynx-ppc-low.cc | 185 ---------
7 files changed, 1409 deletions(-)
delete mode 100644 gdbserver/lynx-i386-low.cc
delete mode 100644 gdbserver/lynx-low.cc
delete mode 100644 gdbserver/lynx-low.h
delete mode 100644 gdbserver/lynx-ppc-low.cc

diff --git a/gdbserver/configure b/gdbserver/configure
index 5479823705e5..dc818736b0ec 100755
--- a/gdbserver/configure
+++ b/gdbserver/configure
@@ -10254,8 +10254,6 @@ elif test "${srv_mingw}" = "yes"; then
LIBS="$LIBS $WIN32APILIBS"
elif test "${srv_qnx}" = "yes"; then
LIBS="$LIBS -lsocket"
-elif test "${srv_lynxos}" = "yes"; then
- LIBS="$LIBS -lnetinet"
fi

if test "${srv_linux_usrregs}" = "yes"; then
diff --git a/gdbserver/configure.ac b/gdbserver/configure.ac
index 090a6dcdb6e9..0b1c81d6af54 100644
--- a/gdbserver/configure.ac
+++ b/gdbserver/configure.ac
@@ -227,8 +227,6 @@ elif test "${srv_mingw}" = "yes"; then
LIBS="$LIBS $WIN32APILIBS"
elif test "${srv_qnx}" = "yes"; then
LIBS="$LIBS -lsocket"
-elif test "${srv_lynxos}" = "yes"; then
- LIBS="$LIBS -lnetinet"
fi

if test "${srv_linux_usrregs}" = "yes"; then
diff --git a/gdbserver/configure.srv b/gdbserver/configure.srv
index 9a027e44af60..24a930624013 100644
--- a/gdbserver/configure.srv
+++ b/gdbserver/configure.srv
@@ -117,12 +117,6 @@ case "${gdbserver_host}" in
ipa_obj="linux-i386-ipa.o linux-x86-tdesc-ipa.o"
ipa_obj="${ipa_obj} arch/i386-ipa.o"
;;
- i[34567]86-*-lynxos*) srv_regobj=""
- srv_tgtobj="lynx-low.o lynx-i386-low.o fork-child.o"
- srv_tgtobj="${srv_tgtobj} nat/fork-inferior.o"
- srv_tgtobj="${srv_tgtobj} arch/i386.o"
- srv_lynxos=yes
- ;;
i[34567]86-*-mingw32ce*)
srv_regobj=""
srv_tgtobj="x86-low.o nat/x86-dregs.o win32-low.o"
@@ -274,13 +268,6 @@ case "${gdbserver_host}" in
srv_linux_thread_db=yes
ipa_obj="${ipa_ppc_linux_regobj} linux-ppc-ipa.o"
;;
- powerpc-*-lynxos*) srv_regobj="powerpc-32.o"
- srv_tgtobj="lynx-low.o lynx-ppc-low.o"
- srv_xmlfiles="rs6000/powerpc-32.xml"
- srv_xmlfiles="${srv_xmlfiles} rs6000/power-core.xml"
- srv_xmlfiles="${srv_xmlfiles} rs6000/power-fpu.xml"
- srv_lynxos=yes
- ;;
riscv*-*-linux*) srv_tgtobj="arch/riscv.o nat/riscv-linux-tdesc.o"
srv_tgtobj="${srv_tgtobj} linux-riscv-low.o"
srv_tgtobj="${srv_tgtobj} ${srv_linux_obj}"
diff --git a/gdbserver/lynx-i386-low.cc b/gdbserver/lynx-i386-low.cc
deleted file mode 100644
index d00e1a167719..000000000000
--- a/gdbserver/lynx-i386-low.cc
+++ /dev/null
@@ -1,358 +0,0 @@
-/* Copyright (C) 2010-2020 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 3 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, see <http://www.gnu.org/licenses/>. */
-
-#include "server.h"
-#include "lynx-low.h"
-#include <limits.h>
-#include <sys/ptrace.h>
-#include "gdbsupport/x86-xstate.h"
-#include "arch/i386.h"
-#include "x86-tdesc.h"
-
-/* The following two typedefs are defined in a .h file which is not
- in the standard include path (/sys/include/family/x86/ucontext.h),
- so we just duplicate them here.
-
- Unfortunately for us, the definition of this structure differs between
- LynxOS 5.x and LynxOS 178. Rather than duplicate the code, we use
- different definitions depending on the target. */
-
-#ifdef VMOS_DEV
-#define LYNXOS_178
-#endif
-
-/* General register context */
-typedef struct usr_econtext {
-
- uint32_t uec_fault;
- uint32_t uec_es;
- uint32_t uec_ds;
- uint32_t uec_edi;
- uint32_t uec_esi;
- uint32_t uec_ebp;
- uint32_t uec_temp;
- uint32_t uec_ebx;
- uint32_t uec_edx;
- uint32_t uec_ecx;
- uint32_t uec_eax;
- uint32_t uec_inum;
- uint32_t uec_ecode;
- uint32_t uec_eip;
- uint32_t uec_cs;
- uint32_t uec_eflags;
- uint32_t uec_esp;
- uint32_t uec_ss;
- uint32_t uec_fs;
- uint32_t uec_gs;
-} usr_econtext_t;
-
-#if defined(LYNXOS_178)
-
-/* Floating point register context */
-typedef struct usr_fcontext {
- uint32_t ufc_control;
- uint32_t ufc_status;
- uint32_t ufc_tag;
- uint8_t *ufc_inst_off;
- uint32_t ufc_inst_sel;
- uint8_t *ufc_data_off;
- uint32_t ufc_data_sel;
- struct ufp387_real {
- uint16_t umant4;
- uint16_t umant3;
- uint16_t umant2;
- uint16_t umant1;
- uint16_t us_and_e;
- } ufc_reg[8];
-} usr_fcontext_t;
-
-#else /* This is LynxOS 5.x. */
-
-/* Floating point and SIMD register context */
-typedef struct usr_fcontext {
- uint16_t ufc_control;
- uint16_t ufc_status;
- uint16_t ufc_tag;
- uint16_t ufc_opcode;
- uint8_t *ufc_inst_off;
- uint32_t ufc_inst_sel;
- uint8_t *ufc_data_off;
- uint32_t ufc_data_sel;
- uint32_t usse_mxcsr;
- uint32_t usse_mxcsr_mask;
- struct ufp387_real {
- uint16_t umant4;
- uint16_t umant3;
- uint16_t umant2;
- uint16_t umant1;
- uint16_t us_and_e;
- uint16_t ureserved_1;
- uint16_t ureserved_2;
- uint16_t ureserved_3;
- } ufc_reg[8];
- struct uxmm_register {
- uint16_t uchunk_1;
- uint16_t uchunk_2;
- uint16_t uchunk_3;
- uint16_t uchunk_4;
- uint16_t uchunk_5;
- uint16_t uchunk_6;
- uint16_t uchunk_7;
- uint16_t uchunk_8;
- } uxmm_reg[8];
- char ureserved[16][14];
-} usr_fcontext_t;
-
-#endif
-
-/* The index of various registers inside the regcache. */
-
-enum lynx_i386_gdb_regnum
-{
- I386_EAX_REGNUM,
- I386_ECX_REGNUM,
- I386_EDX_REGNUM,
- I386_EBX_REGNUM,
- I386_ESP_REGNUM,
- I386_EBP_REGNUM,
- I386_ESI_REGNUM,
- I386_EDI_REGNUM,
- I386_EIP_REGNUM,
- I386_EFLAGS_REGNUM,
- I386_CS_REGNUM,
- I386_SS_REGNUM,
- I386_DS_REGNUM,
- I386_ES_REGNUM,
- I386_FS_REGNUM,
- I386_GS_REGNUM,
- I386_ST0_REGNUM,
- I386_FCTRL_REGNUM = I386_ST0_REGNUM + 8,
- I386_FSTAT_REGNUM,
- I386_FTAG_REGNUM,
- I386_FISEG_REGNUM,
- I386_FIOFF_REGNUM,
- I386_FOSEG_REGNUM,
- I386_FOOFF_REGNUM,
- I386_FOP_REGNUM,
- I386_XMM0_REGNUM = 32,
- I386_MXCSR_REGNUM = I386_XMM0_REGNUM + 8,
- I386_SENTINEL_REGUM
-};
-
-/* The fill_function for the general-purpose register set. */
-
-static void
-lynx_i386_fill_gregset (struct regcache *regcache, char *buf)
-{
-#define lynx_i386_collect_gp(regnum, fld) \
- collect_register (regcache, regnum, \
- buf + offsetof (usr_econtext_t, uec_##fld))
-
- lynx_i386_collect_gp (I386_EAX_REGNUM, eax);
- lynx_i386_collect_gp (I386_ECX_REGNUM, ecx);
- lynx_i386_collect_gp (I386_EDX_REGNUM, edx);
- lynx_i386_collect_gp (I386_EBX_REGNUM, ebx);
- lynx_i386_collect_gp (I386_ESP_REGNUM, esp);
- lynx_i386_collect_gp (I386_EBP_REGNUM, ebp);
- lynx_i386_collect_gp (I386_ESI_REGNUM, esi);
- lynx_i386_collect_gp (I386_EDI_REGNUM, edi);
- lynx_i386_collect_gp (I386_EIP_REGNUM, eip);
- lynx_i386_collect_gp (I386_EFLAGS_REGNUM, eflags);
- lynx_i386_collect_gp (I386_CS_REGNUM, cs);
- lynx_i386_collect_gp (I386_SS_REGNUM, ss);
- lynx_i386_collect_gp (I386_DS_REGNUM, ds);
- lynx_i386_collect_gp (I386_ES_REGNUM, es);
- lynx_i386_collect_gp (I386_FS_REGNUM, fs);
- lynx_i386_collect_gp (I386_GS_REGNUM, gs);
-}
-
-/* The store_function for the general-purpose register set. */
-
-static void
-lynx_i386_store_gregset (struct regcache *regcache, const char *buf)
-{
-#define lynx_i386_supply_gp(regnum, fld) \
- supply_register (regcache, regnum, \
- buf + offsetof (usr_econtext_t, uec_##fld))
-
- lynx_i386_supply_gp (I386_EAX_REGNUM, eax);
- lynx_i386_supply_gp (I386_ECX_REGNUM, ecx);
- lynx_i386_supply_gp (I386_EDX_REGNUM, edx);
- lynx_i386_supply_gp (I386_EBX_REGNUM, ebx);
- lynx_i386_supply_gp (I386_ESP_REGNUM, esp);
- lynx_i386_supply_gp (I386_EBP_REGNUM, ebp);
- lynx_i386_supply_gp (I386_ESI_REGNUM, esi);
- lynx_i386_supply_gp (I386_EDI_REGNUM, edi);
- lynx_i386_supply_gp (I386_EIP_REGNUM, eip);
- lynx_i386_supply_gp (I386_EFLAGS_REGNUM, eflags);
- lynx_i386_supply_gp (I386_CS_REGNUM, cs);
- lynx_i386_supply_gp (I386_SS_REGNUM, ss);
- lynx_i386_supply_gp (I386_DS_REGNUM, ds);
- lynx_i386_supply_gp (I386_ES_REGNUM, es);
- lynx_i386_supply_gp (I386_FS_REGNUM, fs);
- lynx_i386_supply_gp (I386_GS_REGNUM, gs);
-}
-
-/* Extract the first 16 bits of register REGNUM in the REGCACHE,
- and store these 2 bytes at DEST.
-
- This is useful to collect certain 16bit registers which are known
- by GDBserver as 32bit registers (such as the Control Register
- for instance). */
-
-static void
-collect_16bit_register (struct regcache *regcache, int regnum, char *dest)
-{
- gdb_byte word[4];
-
- collect_register (regcache, regnum, word);
- memcpy (dest, word, 2);
-}
-
-/* The fill_function for the floating-point register set. */
-
-static void
-lynx_i386_fill_fpregset (struct regcache *regcache, char *buf)
-{
- int i;
-
- /* Collect %st0 .. %st7. */
- for (i = 0; i < 8; i++)
- collect_register (regcache, I386_ST0_REGNUM + i,
- buf + offsetof (usr_fcontext_t, ufc_reg)
- + i * sizeof (struct ufp387_real));
-
- /* Collect the other FPU registers. */
- collect_16bit_register (regcache, I386_FCTRL_REGNUM,
- buf + offsetof (usr_fcontext_t, ufc_control));
- collect_16bit_register (regcache, I386_FSTAT_REGNUM,
- buf + offsetof (usr_fcontext_t, ufc_status));
- collect_16bit_register (regcache, I386_FTAG_REGNUM,
- buf + offsetof (usr_fcontext_t, ufc_tag));
- collect_register (regcache, I386_FISEG_REGNUM,
- buf + offsetof (usr_fcontext_t, ufc_inst_sel));
- collect_register (regcache, I386_FIOFF_REGNUM,
- buf + offsetof (usr_fcontext_t, ufc_inst_off));
- collect_register (regcache, I386_FOSEG_REGNUM,
- buf + offsetof (usr_fcontext_t, ufc_data_sel));
- collect_register (regcache, I386_FOOFF_REGNUM,
- buf + offsetof (usr_fcontext_t, ufc_data_off));
-#if !defined(LYNXOS_178)
- collect_16bit_register (regcache, I386_FOP_REGNUM,
- buf + offsetof (usr_fcontext_t, ufc_opcode));
-
- /* Collect the XMM registers. */
- for (i = 0; i < 8; i++)
- collect_register (regcache, I386_XMM0_REGNUM + i,
- buf + offsetof (usr_fcontext_t, uxmm_reg)
- + i * sizeof (struct uxmm_register));
- collect_register (regcache, I386_MXCSR_REGNUM,
- buf + offsetof (usr_fcontext_t, usse_mxcsr));
-#endif
-}
-
-/* This is the supply counterpart for collect_16bit_register:
- It extracts a 2byte value from BUF, and uses that value to
- set REGNUM's value in the regcache.
-
- This is useful to supply the value of certain 16bit registers
- which are known by GDBserver as 32bit registers (such as the Control
- Register for instance). */
-
-static void
-supply_16bit_register (struct regcache *regcache, int regnum, const char *buf)
-{
- gdb_byte word[4];
-
- memcpy (word, buf, 2);
- memset (word + 2, 0, 2);
- supply_register (regcache, regnum, word);
-}
-
-/* The store_function for the floating-point register set. */
-
-static void
-lynx_i386_store_fpregset (struct regcache *regcache, const char *buf)
-{
- int i;
-
- /* Store the %st0 .. %st7 registers. */
- for (i = 0; i < 8; i++)
- supply_register (regcache, I386_ST0_REGNUM + i,
- buf + offsetof (usr_fcontext_t, ufc_reg)
- + i * sizeof (struct ufp387_real));
-
- /* Store the other FPU registers. */
- supply_16bit_register (regcache, I386_FCTRL_REGNUM,
- buf + offsetof (usr_fcontext_t, ufc_control));
- supply_16bit_register (regcache, I386_FSTAT_REGNUM,
- buf + offsetof (usr_fcontext_t, ufc_status));
- supply_16bit_register (regcache, I386_FTAG_REGNUM,
- buf + offsetof (usr_fcontext_t, ufc_tag));
- supply_register (regcache, I386_FISEG_REGNUM,
- buf + offsetof (usr_fcontext_t, ufc_inst_sel));
- supply_register (regcache, I386_FIOFF_REGNUM,
- buf + offsetof (usr_fcontext_t, ufc_inst_off));
- supply_register (regcache, I386_FOSEG_REGNUM,
- buf + offsetof (usr_fcontext_t, ufc_data_sel));
- supply_register (regcache, I386_FOOFF_REGNUM,
- buf + offsetof (usr_fcontext_t, ufc_data_off));
-#if !defined(LYNXOS_178)
- supply_16bit_register (regcache, I386_FOP_REGNUM,
- buf + offsetof (usr_fcontext_t, ufc_opcode));
-
- /* Store the XMM registers. */
- for (i = 0; i < 8; i++)
- supply_register (regcache, I386_XMM0_REGNUM + i,
- buf + offsetof (usr_fcontext_t, uxmm_reg)
- + i * sizeof (struct uxmm_register));
- supply_register (regcache, I386_MXCSR_REGNUM,
- buf + offsetof (usr_fcontext_t, usse_mxcsr));
-#endif
-}
-
-/* Implements the lynx_target_ops.arch_setup routine. */
-
-static void
-lynx_i386_arch_setup (void)
-{
- struct target_desc *tdesc
- = i386_create_target_description (X86_XSTATE_SSE_MASK, false, false);
-
- init_target_desc (tdesc, i386_expedite_regs);
-
- lynx_tdesc = tdesc;
-}
-
-/* Description of all the x86-lynx register sets. */
-
-struct lynx_regset_info lynx_target_regsets[] = {
- /* General Purpose Registers. */
- {PTRACE_GETREGS, PTRACE_SETREGS, sizeof(usr_econtext_t),
- lynx_i386_fill_gregset, lynx_i386_store_gregset},
- /* Floating Point Registers. */
- { PTRACE_GETFPREGS, PTRACE_SETFPREGS, sizeof(usr_fcontext_t),
- lynx_i386_fill_fpregset, lynx_i386_store_fpregset },
- /* End of list marker. */
- {0, 0, -1, NULL, NULL }
-};
-
-/* The lynx_target_ops vector for x86-lynx. */
-
-struct lynx_target_ops the_low_target = {
- lynx_i386_arch_setup,
-};
diff --git a/gdbserver/lynx-low.cc b/gdbserver/lynx-low.cc
deleted file mode 100644
index 9aa140c12988..000000000000
--- a/gdbserver/lynx-low.cc
+++ /dev/null
@@ -1,747 +0,0 @@
-/* Copyright (C) 2009-2020 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 3 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, see <http://www.gnu.org/licenses/>. */
-
-#include "server.h"
-#include "target.h"
-#include "lynx-low.h"
-
-#include <limits.h>
-#include <sys/ptrace.h>
-#include <sys/piddef.h> /* Provides PIDGET, TIDGET, BUILDPID, etc. */
-#include <unistd.h>
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include "gdbsupport/gdb_wait.h"
-#include <signal.h>
-#include "gdbsupport/filestuff.h"
-#include "gdbsupport/common-inferior.h"
-#include "nat/fork-inferior.h"
-
-int using_threads = 1;
-
-const struct target_desc *lynx_tdesc;
-
-/* Per-process private data. */
-
-struct process_info_private
-{
- /* The PTID obtained from the last wait performed on this process.
- Initialized to null_ptid until the first wait is performed. */
- ptid_t last_wait_event_ptid;
-};
-
-/* Print a debug trace on standard output if debug_threads is set. */
-
-static void
-lynx_debug (char *string, ...)
-{
- va_list args;
-
- if (!debug_threads)
- return;
-
- va_start (args, string);
- fprintf (stderr, "DEBUG(lynx): ");
- vfprintf (stderr, string, args);
- fprintf (stderr, "\n");
- va_end (args);
-}
-
-/* Build a ptid_t given a PID and a LynxOS TID. */
-
-static ptid_t
-lynx_ptid_t (int pid, long tid)
-{
- /* brobecker/2010-06-21: It looks like the LWP field in ptids
- should be distinct for each thread (see write_ptid where it
- writes the thread ID from the LWP). So instead of storing
- the LynxOS tid in the tid field of the ptid, we store it in
- the lwp field. */
- return ptid_t (pid, tid, 0);
-}
-
-/* Return the process ID of the given PTID.
-
- This function has little reason to exist, it's just a wrapper around
- ptid_get_pid. But since we have a getter function for the lynxos
- ptid, it feels cleaner to have a getter for the pid as well. */
-
-static int
-lynx_ptid_get_pid (ptid_t ptid)
-{
- return ptid.pid ();
-}
-
-/* Return the LynxOS tid of the given PTID. */
-
-static long
-lynx_ptid_get_tid (ptid_t ptid)
-{
- /* See lynx_ptid_t: The LynxOS tid is stored inside the lwp field
- of the ptid. */
- return ptid.lwp ();
-}
-
-/* For a given PTID, return the associated PID as known by the LynxOS
- ptrace layer. */
-
-static int
-lynx_ptrace_pid_from_ptid (ptid_t ptid)
-{
- return BUILDPID (lynx_ptid_get_pid (ptid), lynx_ptid_get_tid (ptid));
-}
-
-/* Return a string image of the ptrace REQUEST number. */
-
-static char *
-ptrace_request_to_str (int request)
-{
-#define CASE(X) case X: return #X
- switch (request)
- {
- CASE(PTRACE_TRACEME);
- CASE(PTRACE_PEEKTEXT);
- CASE(PTRACE_PEEKDATA);
- CASE(PTRACE_PEEKUSER);
- CASE(PTRACE_POKETEXT);
- CASE(PTRACE_POKEDATA);
- CASE(PTRACE_POKEUSER);
- CASE(PTRACE_CONT);
- CASE(PTRACE_KILL);
- CASE(PTRACE_SINGLESTEP);
- CASE(PTRACE_ATTACH);
- CASE(PTRACE_DETACH);
- CASE(PTRACE_GETREGS);
- CASE(PTRACE_SETREGS);
- CASE(PTRACE_GETFPREGS);
- CASE(PTRACE_SETFPREGS);
- CASE(PTRACE_READDATA);
- CASE(PTRACE_WRITEDATA);
- CASE(PTRACE_READTEXT);
- CASE(PTRACE_WRITETEXT);
- CASE(PTRACE_GETFPAREGS);
- CASE(PTRACE_SETFPAREGS);
- CASE(PTRACE_GETWINDOW);
- CASE(PTRACE_SETWINDOW);
- CASE(PTRACE_SYSCALL);
- CASE(PTRACE_DUMPCORE);
- CASE(PTRACE_SETWRBKPT);
- CASE(PTRACE_SETACBKPT);
- CASE(PTRACE_CLRBKPT);
- CASE(PTRACE_GET_UCODE);
-#ifdef PT_READ_GPR
- CASE(PT_READ_GPR);
-#endif
-#ifdef PT_WRITE_GPR
- CASE(PT_WRITE_GPR);
-#endif
-#ifdef PT_READ_FPR
- CASE(PT_READ_FPR);
-#endif
-#ifdef PT_WRITE_FPR
- CASE(PT_WRITE_FPR);
-#endif
-#ifdef PT_READ_VPR
- CASE(PT_READ_VPR);
-#endif
-#ifdef PT_WRITE_VPR
- CASE(PT_WRITE_VPR);
-#endif
-#ifdef PTRACE_PEEKUSP
- CASE(PTRACE_PEEKUSP);
-#endif
-#ifdef PTRACE_POKEUSP
- CASE(PTRACE_POKEUSP);
-#endif
- CASE(PTRACE_PEEKTHREAD);
- CASE(PTRACE_THREADUSER);
- CASE(PTRACE_FPREAD);
- CASE(PTRACE_FPWRITE);
- CASE(PTRACE_SETSIG);
- CASE(PTRACE_CONT_ONE);
- CASE(PTRACE_KILL_ONE);
- CASE(PTRACE_SINGLESTEP_ONE);
- CASE(PTRACE_GETLOADINFO);
- CASE(PTRACE_GETTRACESIG);
-#ifdef PTRACE_GETTHREADLIST
- CASE(PTRACE_GETTHREADLIST);
-#endif
- }
-#undef CASE
-
- return "<unknown-request>";
-}
-
-/* A wrapper around ptrace that allows us to print debug traces of
- ptrace calls if debug traces are activated. */
-
-static int
-lynx_ptrace (int request, ptid_t ptid, int addr, int data, int addr2)
-{
- int result;
- const int pid = lynx_ptrace_pid_from_ptid (ptid);
- int saved_errno;
-
- if (debug_threads)
- fprintf (stderr, "PTRACE (%s, pid=%d(pid=%d, tid=%d), addr=0x%x, "
- "data=0x%x, addr2=0x%x)",
- ptrace_request_to_str (request), pid, PIDGET (pid), TIDGET (pid),
- addr, data, addr2);
- result = ptrace (request, pid, addr, data, addr2);
- saved_errno = errno;
- if (debug_threads)
- fprintf (stderr, " -> %d (=0x%x)\n", result, result);
-
- errno = saved_errno;
- return result;
-}
-
-/* Call add_process with the given parameters, and initializes
- the process' private data. */
-
-static struct process_info *
-lynx_add_process (int pid, int attached)
-{
- struct process_info *proc;
-
- proc = add_process (pid, attached);
- proc->tdesc = lynx_tdesc;
- proc->priv = XCNEW (struct process_info_private);
- proc->priv->last_wait_event_ptid = null_ptid;
-
- return proc;
-}
-
-/* Callback used by fork_inferior to start tracing the inferior. */
-
-static void
-lynx_ptrace_fun ()
-{
- int pgrp;
-
- /* Switch child to its own process group so that signals won't
- directly affect GDBserver. */
- pgrp = getpid();
- if (pgrp < 0)
- trace_start_error_with_name ("pgrp");
- if (setpgid (0, pgrp) < 0)
- trace_start_error_with_name ("setpgid");
- if (ioctl (0, TIOCSPGRP, &pgrp) < 0)
- trace_start_error_with_name ("ioctl");
- if (lynx_ptrace (PTRACE_TRACEME, null_ptid, 0, 0, 0) < 0)
- trace_start_error_with_name ("lynx_ptrace");
-}
-
-/* Implement the create_inferior method of the target_ops vector. */
-
-int
-lynx_process_target::create_inferior (const char *program,
- const std::vector<char *> &program_args)
-{
- int pid;
- std::string str_program_args = stringify_argv (program_args);
-
- lynx_debug ("create_inferior ()");
-
- pid = fork_inferior (program,
- str_program_args.c_str (),
- get_environ ()->envp (), lynx_ptrace_fun,
- NULL, NULL, NULL, NULL);
-
- post_fork_inferior (pid, program);
-
- lynx_add_process (pid, 0);
- /* Do not add the process thread just yet, as we do not know its tid.
- We will add it later, during the wait for the STOP event corresponding
- to the lynx_ptrace (PTRACE_TRACEME) call above. */
- return pid;
-}
-
-/* Assuming we've just attached to a running inferior whose pid is PID,
- add all threads running in that process. */
-
-static void
-lynx_add_threads_after_attach (int pid)
-{
- /* Ugh! There appears to be no way to get the list of threads
- in the program we just attached to. So get the list by calling
- the "ps" command. This is only needed now, as we will then
- keep the thread list up to date thanks to thread creation and
- exit notifications. */
- FILE *f;
- char buf[256];
- int thread_pid, thread_tid;
-
- f = popen ("ps atx", "r");
- if (f == NULL)
- perror_with_name ("Cannot get thread list");
-
- while (fgets (buf, sizeof (buf), f) != NULL)
- if ((sscanf (buf, "%d %d", &thread_pid, &thread_tid) == 2
- && thread_pid == pid))
- {
- ptid_t thread_ptid = lynx_ptid_t (pid, thread_tid);
-
- if (!find_thread_ptid (thread_ptid))
- {
- lynx_debug ("New thread: (pid = %d, tid = %d)",
- pid, thread_tid);
- add_thread (thread_ptid, NULL);
- }
- }
-
- pclose (f);
-}
-
-/* Implement the attach target_ops method. */
-
-int
-lynx_process_target::attach (unsigned long pid)
-{
- ptid_t ptid = lynx_ptid_t (pid, 0);
-
- if (lynx_ptrace (PTRACE_ATTACH, ptid, 0, 0, 0) != 0)
- error ("Cannot attach to process %lu: %s (%d)\n", pid,
- safe_strerror (errno), errno);
-
- lynx_add_process (pid, 1);
- lynx_add_threads_after_attach (pid);
-
- return 0;
-}
-
-/* Implement the resume target_ops method. */
-
-void
-lynx_process_target::resume (thread_resume *resume_info, size_t n)
-{
- ptid_t ptid = resume_info[0].thread;
- const int request
- = (resume_info[0].kind == resume_step
- ? (n == 1 ? PTRACE_SINGLESTEP_ONE : PTRACE_SINGLESTEP)
- : PTRACE_CONT);
- const int signal = resume_info[0].sig;
-
- /* If given a minus_one_ptid, then try using the current_process'
- private->last_wait_event_ptid. On most LynxOS versions,
- using any of the process' thread works well enough, but
- LynxOS 178 is a little more sensitive, and triggers some
- unexpected signals (Eg SIG61) when we resume the inferior
- using a different thread. */
- if (ptid == minus_one_ptid)
- ptid = current_process()->priv->last_wait_event_ptid;
-
- /* The ptid might still be minus_one_ptid; this can happen between
- the moment we create the inferior or attach to a process, and
- the moment we resume its execution for the first time. It is
- fine to use the current_thread's ptid in those cases. */
- if (ptid == minus_one_ptid)
- ptid = ptid_of (current_thread);
-
- regcache_invalidate_pid (ptid.pid ());
-
- errno = 0;
- lynx_ptrace (request, ptid, 1, signal, 0);
- if (errno)
- perror_with_name ("ptrace");
-}
-
-/* Resume the execution of the given PTID. */
-
-static void
-lynx_continue (ptid_t ptid)
-{
- struct thread_resume resume_info;
-
- resume_info.thread = ptid;
- resume_info.kind = resume_continue;
- resume_info.sig = 0;
-
- lynx_resume (&resume_info, 1);
-}
-
-/* A wrapper around waitpid that handles the various idiosyncrasies
- of LynxOS' waitpid. */
-
-static int
-lynx_waitpid (int pid, int *stat_loc)
-{
- int ret = 0;
-
- while (1)
- {
- ret = waitpid (pid, stat_loc, WNOHANG);
- if (ret < 0)
- {
- /* An ECHILD error is not indicative of a real problem.
- It happens for instance while waiting for the inferior
- to stop after attaching to it. */
- if (errno != ECHILD)
- perror_with_name ("waitpid (WNOHANG)");
- }
- if (ret > 0)
- break;
- /* No event with WNOHANG. See if there is one with WUNTRACED. */
- ret = waitpid (pid, stat_loc, WNOHANG | WUNTRACED);
- if (ret < 0)
- {
- /* An ECHILD error is not indicative of a real problem.
- It happens for instance while waiting for the inferior
- to stop after attaching to it. */
- if (errno != ECHILD)
- perror_with_name ("waitpid (WNOHANG|WUNTRACED)");
- }
- if (ret > 0)
- break;
- usleep (1000);
- }
- return ret;
-}
-
-/* Implement the wait target_ops method. */
-
-static ptid_t
-lynx_wait_1 (ptid_t ptid, struct target_waitstatus *status, int options)
-{
- int pid;
- int ret;
- int wstat;
- ptid_t new_ptid;
-
- if (ptid == minus_one_ptid)
- pid = lynx_ptid_get_pid (ptid_of (current_thread));
- else
- pid = BUILDPID (lynx_ptid_get_pid (ptid), lynx_ptid_get_tid (ptid));
-
-retry:
-
- ret = lynx_waitpid (pid, &wstat);
- new_ptid = lynx_ptid_t (ret, ((union wait *) &wstat)->w_tid);
- find_process_pid (ret)->priv->last_wait_event_ptid = new_ptid;
-
- /* If this is a new thread, then add it now. The reason why we do
- this here instead of when handling new-thread events is because
- we need to add the thread associated to the "main" thread - even
- for non-threaded applications where the new-thread events are not
- generated. */
- if (!find_thread_ptid (new_ptid))
- {
- lynx_debug ("New thread: (pid = %d, tid = %d)",
- lynx_ptid_get_pid (new_ptid), lynx_ptid_get_tid (new_ptid));
- add_thread (new_ptid, NULL);
- }
-
- if (WIFSTOPPED (wstat))
- {
- status->kind = TARGET_WAITKIND_STOPPED;
- status->value.integer = gdb_signal_from_host (WSTOPSIG (wstat));
- lynx_debug ("process stopped with signal: %d",
- status->value.integer);
- }
- else if (WIFEXITED (wstat))
- {
- status->kind = TARGET_WAITKIND_EXITED;
- status->value.integer = WEXITSTATUS (wstat);
- lynx_debug ("process exited with code: %d", status->value.integer);
- }
- else if (WIFSIGNALED (wstat))
- {
- status->kind = TARGET_WAITKIND_SIGNALLED;
- status->value.integer = gdb_signal_from_host (WTERMSIG (wstat));
- lynx_debug ("process terminated with code: %d",
- status->value.integer);
- }
- else
- {
- /* Not sure what happened if we get here, or whether we can
- in fact get here. But if we do, handle the event the best
- we can. */
- status->kind = TARGET_WAITKIND_STOPPED;
- status->value.integer = gdb_signal_from_host (0);
- lynx_debug ("unknown event ????");
- }
-
- /* SIGTRAP events are generated for situations other than single-step/
- breakpoint events (Eg. new-thread events). Handle those other types
- of events, and resume the execution if necessary. */
- if (status->kind == TARGET_WAITKIND_STOPPED
- && status->value.integer == GDB_SIGNAL_TRAP)
- {
- const int realsig = lynx_ptrace (PTRACE_GETTRACESIG, new_ptid, 0, 0, 0);
-
- lynx_debug ("(realsig = %d)", realsig);
- switch (realsig)
- {
- case SIGNEWTHREAD:
- /* We just added the new thread above. No need to do anything
- further. Just resume the execution again. */
- lynx_continue (new_ptid);
- goto retry;
-
- case SIGTHREADEXIT:
- remove_thread (find_thread_ptid (new_ptid));
- lynx_continue (new_ptid);
- goto retry;
- }
- }
-
- return new_ptid;
-}
-
-/* A wrapper around lynx_wait_1 that also prints debug traces when
- such debug traces have been activated. */
-
-ptid_t
-lynx_process_target::wait (ptid_t ptid, target_waitstatus *status,
- int options)
-{
- ptid_t new_ptid;
-
- lynx_debug ("wait (pid = %d, tid = %ld)",
- lynx_ptid_get_pid (ptid), lynx_ptid_get_tid (ptid));
- new_ptid = lynx_wait_1 (ptid, status, options);
- lynx_debug (" -> (pid=%d, tid=%ld, status->kind = %d)",
- lynx_ptid_get_pid (new_ptid), lynx_ptid_get_tid (new_ptid),
- status->kind);
- return new_ptid;
-}
-
-/* Implement the kill target_ops method. */
-
-int
-lynx_process_target::kill (process_info *process)
-{
- ptid_t ptid = lynx_ptid_t (process->pid, 0);
- struct target_waitstatus status;
-
- lynx_ptrace (PTRACE_KILL, ptid, 0, 0, 0);
- lynx_wait (ptid, &status, 0);
- mourn (process);
- return 0;
-}
-
-/* Implement the detach target_ops method. */
-
-int
-lynx_process_target::detach (process_info *process)
-{
- ptid_t ptid = lynx_ptid_t (process->pid, 0);
-
- lynx_ptrace (PTRACE_DETACH, ptid, 0, 0, 0);
- mourn (process);
- return 0;
-}
-
-/* Implement the mourn target_ops method. */
-
-void
-lynx_process_target::mourn (struct process_info *proc)
-{
- for_each_thread (proc->pid, remove_thread);
-
- /* Free our private data. */
- free (proc->priv);
- proc->priv = NULL;
-
- remove_process (proc);
-}
-
-/* Implement the join target_ops method. */
-
-void
-lynx_process_target::join (int pid)
-{
- /* The PTRACE_DETACH is sufficient to detach from the process.
- So no need to do anything extra. */
-}
-
-/* Implement the thread_alive target_ops method. */
-
-bool
-lynx_process_target::thread_alive (ptid_t ptid)
-{
- /* The list of threads is updated at the end of each wait, so it
- should be up to date. No need to re-fetch it. */
- return (find_thread_ptid (ptid) != NULL);
-}
-
-/* Implement the fetch_registers target_ops method. */
-
-void
-lynx_process_target::fetch_registers (regcache *regcache, int regno)
-{
- struct lynx_regset_info *regset = lynx_target_regsets;
- ptid_t inferior_ptid = ptid_of (current_thread);
-
- lynx_debug ("fetch_registers (regno = %d)", regno);
-
- while (regset->size >= 0)
- {
- char *buf;
- int res;
-
- buf = xmalloc (regset->size);
- res = lynx_ptrace (regset->get_request, inferior_ptid, (int) buf, 0, 0);
- if (res < 0)
- perror ("ptrace");
- regset->store_function (regcache, buf);
- free (buf);
- regset++;
- }
-}
-
-/* Implement the store_registers target_ops method. */
-
-void
-lynx_process_target::store_registers (regcache *regcache, int regno)
-{
- struct lynx_regset_info *regset = lynx_target_regsets;
- ptid_t inferior_ptid = ptid_of (current_thread);
-
- lynx_debug ("store_registers (regno = %d)", regno);
-
- while (regset->size >= 0)
- {
- char *buf;
- int res;
-
- buf = xmalloc (regset->size);
- res = lynx_ptrace (regset->get_request, inferior_ptid, (int) buf, 0, 0);
- if (res == 0)
- {
- /* Then overlay our cached registers on that. */
- regset->fill_function (regcache, buf);
- /* Only now do we write the register set. */
- res = lynx_ptrace (regset->set_request, inferior_ptid, (int) buf,
- 0, 0);
- }
- if (res < 0)
- perror ("ptrace");
- free (buf);
- regset++;
- }
-}
-
-/* Implement the read_memory target_ops method. */
-
-int
-lynx_process_target::read_memory (CORE_ADDR memaddr, unsigned char *myaddr,
- int len)
-{
- /* On LynxOS, memory reads needs to be performed in chunks the size
- of int types, and they should also be aligned accordingly. */
- int buf;
- const int xfer_size = sizeof (buf);
- CORE_ADDR addr = memaddr & -(CORE_ADDR) xfer_size;
- ptid_t inferior_ptid = ptid_of (current_thread);
-
- while (addr < memaddr + len)
- {
- int skip = 0;
- int truncate = 0;
-
- errno = 0;
- if (addr < memaddr)
- skip = memaddr - addr;
- if (addr + xfer_size > memaddr + len)
- truncate = addr + xfer_size - memaddr - len;
- buf = lynx_ptrace (PTRACE_PEEKTEXT, inferior_ptid, addr, 0, 0);
- if (errno)
- return errno;
- memcpy (myaddr + (addr - memaddr) + skip, (gdb_byte *) &buf + skip,
- xfer_size - skip - truncate);
- addr += xfer_size;
- }
-
- return 0;
-}
-
-/* Implement the write_memory target_ops method. */
-
-int
-lynx_process_target::write_memory (CORE_ADDR memaddr,
- const unsigned char *myaddr, int len)
-{
- /* On LynxOS, memory writes needs to be performed in chunks the size
- of int types, and they should also be aligned accordingly. */
- int buf;
- const int xfer_size = sizeof (buf);
- CORE_ADDR addr = memaddr & -(CORE_ADDR) xfer_size;
- ptid_t inferior_ptid = ptid_of (current_thread);
-
- while (addr < memaddr + len)
- {
- int skip = 0;
- int truncate = 0;
-
- if (addr < memaddr)
- skip = memaddr - addr;
- if (addr + xfer_size > memaddr + len)
- truncate = addr + xfer_size - memaddr - len;
- if (skip > 0 || truncate > 0)
- {
- /* We need to read the memory at this address in order to preserve
- the data that we are not overwriting. */
- read_memory (addr, (unsigned char *) &buf, xfer_size);
- if (errno)
- return errno;
- }
- memcpy ((gdb_byte *) &buf + skip, myaddr + (addr - memaddr) + skip,
- xfer_size - skip - truncate);
- errno = 0;
- lynx_ptrace (PTRACE_POKETEXT, inferior_ptid, addr, buf, 0);
- if (errno)
- return errno;
- addr += xfer_size;
- }
-
- return 0;
-}
-
-/* Implement the kill_request target_ops method. */
-
-void
-lynx_process_target::request_interrupt ()
-{
- ptid_t inferior_ptid = ptid_of (get_first_thread ());
-
- kill (lynx_ptid_get_pid (inferior_ptid), SIGINT);
-}
-
-bool
-lynx_process_target::supports_hardware_single_step ()
-{
- return true;
-}
-
-const gdb_byte *
-lynx_process_target::sw_breakpoint_from_kind (int kind, int *size)
-{
- error (_("Target does not implement the sw_breakpoint_from_kind op"));
-}
-
-/* The LynxOS target ops object. */
-
-static lynx_process_target the_lynx_target;
-
-void
-initialize_low (void)
-{
- set_target_ops (&the_lynx_target);
- the_low_target.arch_setup ();
-}
-
diff --git a/gdbserver/lynx-low.h b/gdbserver/lynx-low.h
deleted file mode 100644
index fa975a21f30c..000000000000
--- a/gdbserver/lynx-low.h
+++ /dev/null
@@ -1,102 +0,0 @@
-/* Copyright (C) 2010-2020 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 3 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, see <http://www.gnu.org/licenses/>. */
-
-#ifndef GDBSERVER_LYNX_LOW_H
-#define GDBSERVER_LYNX_LOW_H
-
-struct regcache;
-struct target_desc;
-
-/* Some information relative to a given register set. */
-
-struct lynx_regset_info
-{
- /* The ptrace request needed to get/set registers of this set. */
- int get_request, set_request;
- /* The size of the register set. */
- int size;
- /* Fill the buffer BUF from the contents of the given REGCACHE. */
- void (*fill_function) (struct regcache *regcache, char *buf);
- /* Store the register value in BUF in the given REGCACHE. */
- void (*store_function) (struct regcache *regcache, const char *buf);
-};
-
-/* A list of regsets for the target being debugged, terminated by an entry
- where the size is negative.
-
- This list should be created by the target-specific code. */
-
-extern struct lynx_regset_info lynx_target_regsets[];
-
-/* The target-specific operations for LynxOS support. */
-
-struct lynx_target_ops
-{
- /* Architecture-specific setup. */
- void (*arch_setup) (void);
-};
-
-extern struct lynx_target_ops the_low_target;
-
-/* Target ops definitions for a LynxOS target. */
-
-class lynx_process_target : public process_stratum_target
-{
-public:
-
- int create_inferior (const char *program,
- const std::vector<char *> &program_args) override;
-
- int attach (unsigned long pid) override;
-
- int kill (process_info *proc) override;
-
- int detach (process_info *proc) override;
-
- void mourn (process_info *proc) override;
-
- void join (int pid) override;
-
- bool thread_alive (ptid_t pid) override;
-
- void resume (thread_resume *resume_info, size_t n) override;
-
- ptid_t wait (ptid_t ptid, target_waitstatus *status,
- int options) override;
-
- void fetch_registers (regcache *regcache, int regno) override;
-
- void store_registers (regcache *regcache, int regno) override;
-
- int read_memory (CORE_ADDR memaddr, unsigned char *myaddr,
- int len) override;
-
- int write_memory (CORE_ADDR memaddr, const unsigned char *myaddr,
- int len) override;
-
- void request_interrupt () override;
-
- bool supports_hardware_single_step () override;
-
- const gdb_byte *sw_breakpoint_from_kind (int kind, int *size) override;
-};
-
-/* The inferior's target description. This is a global because the
- LynxOS ports support neither bi-arch nor multi-process. */
-extern const struct target_desc *lynx_tdesc;
-
-#endif /* GDBSERVER_LYNX_LOW_H */
diff --git a/gdbserver/lynx-ppc-low.cc b/gdbserver/lynx-ppc-low.cc
deleted file mode 100644
index f93fc1d8d87f..000000000000
--- a/gdbserver/lynx-ppc-low.cc
+++ /dev/null
@@ -1,185 +0,0 @@
-/* Copyright (C) 2009-2020 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 3 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, see <http://www.gnu.org/licenses/>. */
-
-#include "server.h"
-#include "lynx-low.h"
-#include <limits.h>
-#include <sys/ptrace.h>
-
-/* The following two typedefs are defined in a .h file which is not
- in the standard include path (/sys/include/family/ppc/ucontext.h),
- so we just duplicate them here. */
-
-/* General register context */
-typedef struct usr_econtext_s
-{
- uint32_t uec_iregs[32];
- uint32_t uec_inum;
- uint32_t uec_srr0;
- uint32_t uec_srr1;
- uint32_t uec_lr;
- uint32_t uec_ctr;
- uint32_t uec_cr;
- uint32_t uec_xer;
- uint32_t uec_dar;
- uint32_t uec_mq;
- uint32_t uec_msr;
- uint32_t uec_sregs[16];
- uint32_t uec_ss_count;
- uint32_t uec_ss_addr1;
- uint32_t uec_ss_addr2;
- uint32_t uec_ss_code1;
- uint32_t uec_ss_code2;
-} usr_econtext_t;
-
-/* Floating point register context */
-typedef struct usr_fcontext_s
-{
- uint64_t ufc_freg[32];
- uint32_t ufc_fpscr[2];
-} usr_fcontext_t;
-
-/* Index of for various registers inside the regcache. */
-#define R0_REGNUM 0
-#define F0_REGNUM 32
-#define PC_REGNUM 64
-#define MSR_REGNUM 65
-#define CR_REGNUM 66
-#define LR_REGNUM 67
-#define CTR_REGNUM 68
-#define XER_REGNUM 69
-#define FPSCR_REGNUM 70
-
-/* Defined in auto-generated file powerpc-32.c. */
-extern void init_registers_powerpc_32 (void);
-extern const struct target_desc *tdesc_powerpc_32;
-
-/* The fill_function for the general-purpose register set. */
-
-static void
-lynx_ppc_fill_gregset (struct regcache *regcache, char *buf)
-{
- int i;
-
- /* r0 - r31 */
- for (i = 0; i < 32; i++)
- collect_register (regcache, R0_REGNUM + i,
- buf + offsetof (usr_econtext_t, uec_iregs[i]));
-
- /* The other registers provided in the GP register context. */
- collect_register (regcache, PC_REGNUM,
- buf + offsetof (usr_econtext_t, uec_srr0));
- collect_register (regcache, MSR_REGNUM,
- buf + offsetof (usr_econtext_t, uec_srr1));
- collect_register (regcache, CR_REGNUM,
- buf + offsetof (usr_econtext_t, uec_cr));
- collect_register (regcache, LR_REGNUM,
- buf + offsetof (usr_econtext_t, uec_lr));
- collect_register (regcache, CTR_REGNUM,
- buf + offsetof (usr_econtext_t, uec_ctr));
- collect_register (regcache, XER_REGNUM,
- buf + offsetof (usr_econtext_t, uec_xer));
-}
-
-/* The store_function for the general-purpose register set. */
-
-static void
-lynx_ppc_store_gregset (struct regcache *regcache, const char *buf)
-{
- int i;
-
- /* r0 - r31 */
- for (i = 0; i < 32; i++)
- supply_register (regcache, R0_REGNUM + i,
- buf + offsetof (usr_econtext_t, uec_iregs[i]));
-
- /* The other registers provided in the GP register context. */
- supply_register (regcache, PC_REGNUM,
- buf + offsetof (usr_econtext_t, uec_srr0));
- supply_register (regcache, MSR_REGNUM,
- buf + offsetof (usr_econtext_t, uec_srr1));
- supply_register (regcache, CR_REGNUM,
- buf + offsetof (usr_econtext_t, uec_cr));
- supply_register (regcache, LR_REGNUM,
- buf + offsetof (usr_econtext_t, uec_lr));
- supply_register (regcache, CTR_REGNUM,
- buf + offsetof (usr_econtext_t, uec_ctr));
- supply_register (regcache, XER_REGNUM,
- buf + offsetof (usr_econtext_t, uec_xer));
-}
-
-/* The fill_function for the floating-point register set. */
-
-static void
-lynx_ppc_fill_fpregset (struct regcache *regcache, char *buf)
-{
- int i;
-
- /* f0 - f31 */
- for (i = 0; i < 32; i++)
- collect_register (regcache, F0_REGNUM + i,
- buf + offsetof (usr_fcontext_t, ufc_freg[i]));
-
- /* fpscr */
- collect_register (regcache, FPSCR_REGNUM,
- buf + offsetof (usr_fcontext_t, ufc_fpscr));
-}
-
-/* The store_function for the floating-point register set. */
-
-static void
-lynx_ppc_store_fpregset (struct regcache *regcache, const char *buf)
-{
- int i;
-
- /* f0 - f31 */
- for (i = 0; i < 32; i++)
- supply_register (regcache, F0_REGNUM + i,
- buf + offsetof (usr_fcontext_t, ufc_freg[i]));
-
- /* fpscr */
- supply_register (regcache, FPSCR_REGNUM,
- buf + offsetof (usr_fcontext_t, ufc_fpscr));
-}
-
-/* Implements the lynx_target_ops.arch_setup routine. */
-
-static void
-lynx_ppc_arch_setup (void)
-{
- init_registers_powerpc_32 ();
- lynx_tdesc = tdesc_powerpc_32;
-}
-
-/* Description of all the powerpc-lynx register sets. */
-
-struct lynx_regset_info lynx_target_regsets[] = {
- /* General Purpose Registers. */
- {PTRACE_GETREGS, PTRACE_SETREGS, sizeof(usr_econtext_t),
- lynx_ppc_fill_gregset, lynx_ppc_store_gregset},
- /* Floating Point Registers. */
- { PTRACE_GETFPREGS, PTRACE_SETFPREGS, sizeof(usr_fcontext_t),
- lynx_ppc_fill_fpregset, lynx_ppc_store_fpregset },
- /* End of list marker. */
- {0, 0, -1, NULL, NULL }
-};
-
-/* The lynx_target_ops vector for powerpc-lynxos. */
-
-struct lynx_target_ops the_low_target = {
- lynx_ppc_arch_setup,
-};
--
2.26.2