From d6ea322fbc99d69b4009efc9fd69ffb0596a3a35 Mon Sep 17 00:00:00 2001 From: Dawn Perchik Date: Fri, 28 Jun 1996 14:28:20 +0000 Subject: * configure,configure.in: Add target sparclet. * monitor.h,monitor.c: Added monitor flags MO_NO_ECHO_ON_SETMEM (don't expect echo on setmem command), MO_RUN_FIRST_TIME (if command to start process running on target is different from one to continue execution), MO_HEX_PREFIX (if addresses from monitor have a "0x" prefix). * monitor.c,parse.c,sparc-tdep.c: Don't require strings in the registers array. This is to allow NULLs to be place holders in the tm-*.h file so that only minor changes are needed when a new processor is introduced (eg, one without floating point). * sparc-tdep.c: Conditionally remove dependancies on floating point. * sparclet-rom.c,config/sparc/sparclet.mt,config/sparc/tm-sparclet.h: New files for target sparclet. * symfile.c: Add option for 2nd parameter on load command : a load offset added to the vma of each section. --- gdb/config/sparc/.Sanitize | 1 + gdb/config/sparc/sparclet.mt | 3 ++ gdb/config/sparc/tm-sparclet.h | 102 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 106 insertions(+) create mode 100644 gdb/config/sparc/sparclet.mt create mode 100644 gdb/config/sparc/tm-sparclet.h (limited to 'gdb') diff --git a/gdb/config/sparc/.Sanitize b/gdb/config/sparc/.Sanitize index 3d69adb..2e12f02 100644 --- a/gdb/config/sparc/.Sanitize +++ b/gdb/config/sparc/.Sanitize @@ -44,6 +44,7 @@ tm-nbsd.h tm-sp64.h tm-sp64sim.h tm-sparc.h +tm-sparclet.h tm-sparclite.h tm-sparclynx.h tm-spc-em.h diff --git a/gdb/config/sparc/sparclet.mt b/gdb/config/sparc/sparclet.mt new file mode 100644 index 0000000..f08cfd7 --- /dev/null +++ b/gdb/config/sparc/sparclet.mt @@ -0,0 +1,3 @@ +# Target: SPARC embedded Sparclet monitor +TDEPFILES= sparc-tdep.o monitor.o sparclet-rom.o dsrec.o +TM_FILE= tm-sparclet.h diff --git a/gdb/config/sparc/tm-sparclet.h b/gdb/config/sparc/tm-sparclet.h new file mode 100644 index 0000000..1a73cc9 --- /dev/null +++ b/gdb/config/sparc/tm-sparclet.h @@ -0,0 +1,102 @@ +/* Target machine definitions for GDB for an embedded SPARC. + Copyright 1989, 1992, 1993 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 "sparc/tm-sparc.h" + +#define TARGET_SPARCLET 1 + +/* overrides of tm-sparc.h */ + +/* Initializer for an array of names of registers. + There should be NUM_REGS strings in this initializer. */ +/* Sparclet has no fp! */ +/* Compiler maps types for floats by number, so can't + change the numbers here. */ + +#undef REGISTER_NAMES +/* g0 removed - Sparclet returns error if attempt to access. */ +/* psr removed - Sparclet does not return ": " in response, + the monitor is therefore unable to get the expected response delimiter, + causing a timeout. */ +#define REGISTER_NAMES \ +{ "", "g1", "g2", "g3", "g4", "g5", "g6", "g7", \ + "o0", "o1", "o2", "o3", "o4", "o5", "o6", "o7", \ + "l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7", \ + "i0", "i1", "i2", "i3", "i4", "i5", "i6", "i7", \ + \ + 0, 0, 0, 0, 0, 0, 0, 0, \ + 0, 0, 0, 0, 0, 0, 0, 0, \ + 0, 0, 0, 0, 0, 0, 0, 0, \ + 0, 0, 0, 0, 0, 0, 0, 0, \ + \ + "y", 0, "wim", "tbr", "pc", "npc", 0, 0 } + +/* Remove FP dependant code which was defined in tm-sparc.h */ +#undef FP0_REGNUM /* Floating point register 0 */ +#undef FPS_REGNUM /* Floating point status register */ +#undef CPS_REGNUM /* Coprocessor status register */ + +#undef EXTRACT_RETURN_VALUE +#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ + { \ + memcpy ((VALBUF), \ + (char *)(REGBUF) + REGISTER_RAW_SIZE (O0_REGNUM) * 8 + \ + (TYPE_LENGTH(TYPE) >= REGISTER_RAW_SIZE (O0_REGNUM) \ + ? 0 : REGISTER_RAW_SIZE (O0_REGNUM) - TYPE_LENGTH(TYPE)), \ + TYPE_LENGTH(TYPE)); \ + } +#undef STORE_RETURN_VALUE +#define STORE_RETURN_VALUE(TYPE,VALBUF) \ + { \ + /* Other values are returned in register %o0. */ \ + write_register_bytes (REGISTER_BYTE (O0_REGNUM), (VALBUF), \ + TYPE_LENGTH (TYPE)); \ + } +#undef PRINT_REGISTER_HOOK +#define PRINT_REGISTER_HOOK(regno) + +/* Override the standard gdb prompt when compiled for this target. */ + +#define DEFAULT_PROMPT "(gdbslet) " + +/* Offsets into jmp_buf. Not defined by Sun, but at least documented in a + comment in ! */ + +#define JB_ELEMENT_SIZE 4 /* Size of each element in jmp_buf */ + +#define JB_ONSSTACK 0 +#define JB_SIGMASK 1 +#define JB_SP 2 +#define JB_PC 3 +#define JB_NPC 4 +#define JB_PSR 5 +#define JB_G1 6 +#define JB_O0 7 +#define JB_WBCNT 8 + +/* Figure out where the longjmp will land. We expect that we have just entered + longjmp and haven't yet setup the stack frame, so the args are still in the + output regs. %o0 (O0_REGNUM) points at the jmp_buf structure from which we + extract the pc (JB_PC) that we will land at. The pc is copied into ADDR. + This routine returns true on success */ + +extern int +get_longjmp_target PARAMS ((CORE_ADDR *)); + +#define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR) -- cgit v1.1