From: Simon Marchi Date: Fri, 12 Jun 2020 20:06:42 +0000 (-0400) Subject: gdbserver: remove support for Blackfin X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1fa29f56baa741dd9a9238cf848927a7a7d83d6d;p=binutils-gdb.git gdbserver: remove support for Blackfin 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-bfin-low.c. * configure.srv: Remove bfin case. * linux-bfin-low.cc: Remove. * linux-low.cc: Remove BFIN-conditional code. Change-Id: I846310d15e6386118ec7eabb1b87e647174560fb --- diff --git a/gdbserver/ChangeLog b/gdbserver/ChangeLog index 07cf443354e..e49c8186556 100644 --- a/gdbserver/ChangeLog +++ b/gdbserver/ChangeLog @@ -1,3 +1,10 @@ +2020-06-12 Simon Marchi + + * Makefile.in (SFILES): Remove linux-bfin-low.c. + * configure.srv: Remove bfin case. + * linux-bfin-low.cc: Remove. + * linux-low.cc: Remove BFIN-conditional code. + 2020-06-12 Simon Marchi * configure: Re-generate. diff --git a/gdbserver/Makefile.in b/gdbserver/Makefile.in index 417a530e25d..58577ca898c 100644 --- a/gdbserver/Makefile.in +++ b/gdbserver/Makefile.in @@ -180,7 +180,6 @@ SFILES = \ $(srcdir)/inferiors.cc \ $(srcdir)/linux-aarch64-low.cc \ $(srcdir)/linux-arm-low.cc \ - $(srcdir)/linux-bfin-low.cc \ $(srcdir)/linux-cris-low.cc \ $(srcdir)/linux-crisv32-low.cc \ $(srcdir)/linux-ia64-low.cc \ diff --git a/gdbserver/configure.srv b/gdbserver/configure.srv index 0a3bf32dd18..4b4e25a5e5e 100644 --- a/gdbserver/configure.srv +++ b/gdbserver/configure.srv @@ -81,11 +81,6 @@ case "${gdbserver_host}" in srv_mingw=yes srv_mingwce=yes ;; - bfin-*-*linux*) srv_regobj=reg-bfin.o - srv_tgtobj="$srv_linux_obj linux-bfin-low.o" - srv_linux_usrregs=yes - srv_linux_thread_db=yes - ;; crisv32-*-linux*) srv_regobj=reg-crisv32.o srv_tgtobj="$srv_linux_obj linux-crisv32-low.o" srv_linux_regsets=yes diff --git a/gdbserver/linux-bfin-low.cc b/gdbserver/linux-bfin-low.cc deleted file mode 100644 index 963ccfeda94..00000000000 --- a/gdbserver/linux-bfin-low.cc +++ /dev/null @@ -1,173 +0,0 @@ -/* GNU/Linux/BFIN specific low level interface, for the remote server for GDB. - - Copyright (C) 2005-2020 Free Software Foundation, Inc. - - Contributed by Analog Devices, 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" -#include - -/* Linux target op definitions for the BFIN architecture. */ - -class bfin_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; - - int low_decr_pc_after_break () override; - - bool low_breakpoint_at (CORE_ADDR pc) override; -}; - -/* The singleton target ops object. */ - -static bfin_target the_bfin_target; - -bool -bfin_target::low_supports_breakpoints () -{ - return true; -} - -CORE_ADDR -bfin_target::low_get_pc (regcache *regcache) -{ - return linux_get_pc_32bit (regcache); -} - -void -bfin_target::low_set_pc (regcache *regcache, CORE_ADDR pc) -{ - linux_set_pc_32bit (regcache, pc); -} - -int -bfin_target::low_decr_pc_after_break () -{ - return 2; -} - -/* Defined in auto-generated file reg-bfin.c. */ -void init_registers_bfin (void); -extern const struct target_desc *tdesc_bfin; - -static int bfin_regmap[] = -{ - PT_R0, PT_R1, PT_R2, PT_R3, PT_R4, PT_R5, PT_R6, PT_R7, - PT_P0, PT_P1, PT_P2, PT_P3, PT_P4, PT_P5, PT_USP, PT_FP, - PT_I0, PT_I1, PT_I2, PT_I3, PT_M0, PT_M1, PT_M2, PT_M3, - PT_B0, PT_B1, PT_B2, PT_B3, PT_L0, PT_L1, PT_L2, PT_L3, - PT_A0X, PT_A0W, PT_A1X, PT_A1W, PT_ASTAT, PT_RETS, - PT_LC0, PT_LT0, PT_LB0, PT_LC1, PT_LT1, PT_LB1, - -1 /* PT_CYCLES */, -1 /* PT_CYCLES2 */, - -1 /* PT_USP */, PT_SEQSTAT, PT_SYSCFG, PT_PC, PT_RETX, PT_RETN, PT_RETE, - PT_PC, -}; - -#define bfin_num_regs ARRAY_SIZE (bfin_regmap) - -bool -bfin_target::low_cannot_store_register (int regno) -{ - return (regno >= bfin_num_regs); -} - -bool -bfin_target::low_cannot_fetch_register (int regno) -{ - return (regno >= bfin_num_regs); -} - -#define bfin_breakpoint_len 2 -static const gdb_byte bfin_breakpoint[bfin_breakpoint_len] = {0xa1, 0x00}; - -/* Implementation of target ops method "sw_breakpoint_from_kind". */ - -const gdb_byte * -bfin_target::sw_breakpoint_from_kind (int kind, int *size) -{ - *size = bfin_breakpoint_len; - return bfin_breakpoint; -} - -bool -bfin_target::low_breakpoint_at (CORE_ADDR where) -{ - unsigned char insn[bfin_breakpoint_len]; - - read_inferior_memory(where, insn, bfin_breakpoint_len); - if (insn[0] == bfin_breakpoint[0] - && insn[1] == bfin_breakpoint[1]) - return true; - - /* If necessary, recognize more trap instructions here. GDB only uses the - one. */ - return false; -} - -void -bfin_target::low_arch_setup () -{ - current_process ()->tdesc = tdesc_bfin; -} - -static struct usrregs_info bfin_usrregs_info = - { - bfin_num_regs, - bfin_regmap, - }; - -static struct regs_info myregs_info = - { - NULL, /* regset_bitmap */ - &bfin_usrregs_info, - }; - -const regs_info * -bfin_target::get_regs_info () -{ - return &myregs_info; -} - -/* The linux target ops object. */ - -linux_process_target *the_linux_target = &the_bfin_target; - -void -initialize_low_arch (void) -{ - init_registers_bfin (); -} diff --git a/gdbserver/linux-low.cc b/gdbserver/linux-low.cc index 8ba39252c0f..bde6c767e87 100644 --- a/gdbserver/linux-low.cc +++ b/gdbserver/linux-low.cc @@ -86,11 +86,6 @@ #define PT_TEXT_ADDR 49*4 #define PT_DATA_ADDR 50*4 #define PT_TEXT_END_ADDR 51*4 -/* BFIN already defines these since at least 2.6.32 kernels. */ -#elif defined(BFIN) -#define PT_TEXT_ADDR 220 -#define PT_TEXT_END_ADDR 224 -#define PT_DATA_ADDR 228 /* These are still undefined in 3.10 kernels. */ #elif defined(__TMS320C6X__) #define PT_TEXT_ADDR (0x10000*4)