From bd1467aee8dff8f1ea196b1ae10b14b6d1709dfb Mon Sep 17 00:00:00 2001 From: Simon Marchi Date: Fri, 12 Jun 2020 16:06:44 -0400 Subject: [PATCH] gdbserver: remove support for M32R This port has been unmaintained for years and the upstream Linux kernel does not support this architecture anymore, remove it. gdbserver/ChangeLog: * Makefile.in (SFILES): Remove linux-m32r-low.cc. * configure.srv: Remove m32r case. * linux-m32r-low.cc: Remove. Change-Id: I5617b2b1fd92aeec19b38e0e3c0b78adaafdb35b --- gdbserver/ChangeLog | 6 ++ gdbserver/Makefile.in | 1 - gdbserver/configure.srv | 5 -- gdbserver/linux-m32r-low.cc | 163 ------------------------------------ 4 files changed, 6 insertions(+), 169 deletions(-) delete mode 100644 gdbserver/linux-m32r-low.cc diff --git a/gdbserver/ChangeLog b/gdbserver/ChangeLog index c857f001404..bbfbf83c89b 100644 --- a/gdbserver/ChangeLog +++ b/gdbserver/ChangeLog @@ -1,3 +1,9 @@ +2020-06-12 Simon Marchi + + * Makefile.in (SFILES): Remove linux-m32r-low.cc. + * configure.srv: Remove m32r case. + * linux-m32r-low.cc: Remove. + 2020-06-12 Simon Marchi * Makefile.in (SFILES): Remove linux-cris-low.c. diff --git a/gdbserver/Makefile.in b/gdbserver/Makefile.in index 32996293817..80cc12e5860 100644 --- a/gdbserver/Makefile.in +++ b/gdbserver/Makefile.in @@ -182,7 +182,6 @@ SFILES = \ $(srcdir)/linux-arm-low.cc \ $(srcdir)/linux-ia64-low.cc \ $(srcdir)/linux-low.cc \ - $(srcdir)/linux-m32r-low.cc \ $(srcdir)/linux-m68k-low.cc \ $(srcdir)/linux-mips-low.cc \ $(srcdir)/linux-nios2-low.cc \ diff --git a/gdbserver/configure.srv b/gdbserver/configure.srv index e362c961703..76d2b8e7e02 100644 --- a/gdbserver/configure.srv +++ b/gdbserver/configure.srv @@ -125,11 +125,6 @@ case "${gdbserver_host}" in srv_tgtobj="$srv_linux_obj linux-ia64-low.o" srv_linux_usrregs=yes ;; - m32r*-*-linux*) srv_regobj=reg-m32r.o - srv_tgtobj="$srv_linux_obj linux-m32r-low.o" - srv_linux_usrregs=yes - srv_linux_thread_db=yes - ;; m68*-*-linux*) if test "$gdb_cv_m68k_is_coldfire" = yes; then srv_regobj=reg-cf.o else diff --git a/gdbserver/linux-m32r-low.cc b/gdbserver/linux-m32r-low.cc deleted file mode 100644 index 3f84b17302a..00000000000 --- a/gdbserver/linux-m32r-low.cc +++ /dev/null @@ -1,163 +0,0 @@ -/* GNU/Linux/m32r specific low level interface, for the remote server for GDB. - Copyright (C) 2005-2020 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 . */ - -#include "server.h" -#include "linux-low.h" - -#ifdef HAVE_SYS_REG_H -#include -#endif - -/* Linux target op definitions for the m32r architecture. */ - -class m32r_target : public linux_process_target -{ -public: - - const regs_info *get_regs_info () override; - - const gdb_byte *sw_breakpoint_from_kind (int kind, int *size) override; - -protected: - - void low_arch_setup () override; - - bool low_cannot_fetch_register (int regno) override; - - bool low_cannot_store_register (int regno) override; - - bool low_supports_breakpoints () override; - - CORE_ADDR low_get_pc (regcache *regcache) override; - - void low_set_pc (regcache *regcache, CORE_ADDR newpc) override; - - bool low_breakpoint_at (CORE_ADDR pc) override; -}; - -/* The singleton target ops object. */ - -static m32r_target the_m32r_target; - -bool -m32r_target::low_supports_breakpoints () -{ - return true; -} - -CORE_ADDR -m32r_target::low_get_pc (regcache *regcache) -{ - return linux_get_pc_32bit (regcache); -} - -void -m32r_target::low_set_pc (regcache *regcache, CORE_ADDR pc) -{ - linux_set_pc_32bit (regcache, pc); -} - -/* Defined in auto-generated file reg-m32r.c. */ -void init_registers_m32r (void); -extern const struct target_desc *tdesc_m32r; - -#define m32r_num_regs 25 - -static int m32r_regmap[] = { -#ifdef PT_R0 - PT_R0, PT_R1, PT_R2, PT_R3, PT_R4, PT_R5, PT_R6, PT_R7, - PT_R8, PT_R9, PT_R10, PT_R11, PT_R12, PT_FP, PT_LR, PT_SPU, - PT_PSW, PT_CBR, PT_SPI, PT_SPU, PT_BPC, PT_PC, PT_ACCL, PT_ACCH, PT_EVB -#else - 4 * 4, 4 * 5, 4 * 6, 4 * 7, 4 * 0, 4 * 1, 4 * 2, 4 * 8, - 4 * 9, 4 * 10, 4 * 11, 4 * 12, 4 * 13, 4 * 24, 4 * 25, 4 * 23, - 4 * 19, 4 * 31, 4 * 26, 4 * 23, 4 * 20, 4 * 30, 4 * 16, 4 * 15, 4 * 32 -#endif -}; - -bool -m32r_target::low_cannot_store_register (int regno) -{ - return (regno >= m32r_num_regs); -} - -bool -m32r_target::low_cannot_fetch_register (int regno) -{ - return (regno >= m32r_num_regs); -} - -static const unsigned short m32r_breakpoint = 0x10f1; -#define m32r_breakpoint_len 2 - -/* Implementation of target ops method "sw_breakpoint_from_kind". */ - -const gdb_byte * -m32r_target::sw_breakpoint_from_kind (int kind, int *size) -{ - *size = m32r_breakpoint_len; - return (const gdb_byte *) &m32r_breakpoint; -} - -bool -m32r_target::low_breakpoint_at (CORE_ADDR where) -{ - unsigned short insn; - - read_memory (where, (unsigned char *) &insn, m32r_breakpoint_len); - if (insn == m32r_breakpoint) - return true; - - /* If necessary, recognize more trap instructions here. GDB only uses the - one. */ - return false; -} - -void -m32r_target::low_arch_setup () -{ - current_process ()->tdesc = tdesc_m32r; -} - -static struct usrregs_info m32r_usrregs_info = - { - m32r_num_regs, - m32r_regmap, - }; - -static struct regs_info myregs_info = - { - NULL, /* regset_bitmap */ - &m32r_usrregs_info, - }; - -const regs_info * -m32r_target::get_regs_info () -{ - return &myregs_info; -} - -/* The linux target ops object. */ - -linux_process_target *the_linux_target = &the_m32r_target; - -void -initialize_low_arch (void) -{ - init_registers_m32r (); -}