mirror of
https://sourceware.org/git/binutils-gdb.git
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dccbb60975
This commit includes gdb_assert.h in common-defs.h and removes all other inclusions. gdb/ 2014-08-07 Gary Benson <gbenson@redhat.com> * common/common-defs.h: Include gdb_assert.h. * aarch64-tdep.c: Do not include gdb_assert.h. * addrmap.c: Likewise. * aix-thread.c: Likewise. * alpha-linux-tdep.c: Likewise. * alpha-mdebug-tdep.c: Likewise. * alphanbsd-tdep.c: Likewise. * amd64-nat.c: Likewise. * amd64-tdep.c: Likewise. * amd64bsd-nat.c: Likewise. * amd64fbsd-nat.c: Likewise. * amd64fbsd-tdep.c: Likewise. * amd64nbsd-nat.c: Likewise. * amd64nbsd-tdep.c: Likewise. * amd64obsd-nat.c: Likewise. * amd64obsd-tdep.c: Likewise. * arch-utils.c: Likewise. * arm-tdep.c: Likewise. * armbsd-tdep.c: Likewise. * auxv.c: Likewise. * bcache.c: Likewise. * bfin-tdep.c: Likewise. * blockframe.c: Likewise. * breakpoint.c: Likewise. * bsd-kvm.c: Likewise. * bsd-uthread.c: Likewise. * buildsym.c: Likewise. * c-exp.y: Likewise. * c-lang.c: Likewise. * charset.c: Likewise. * cleanups.c: Likewise. * cli-out.c: Likewise. * cli/cli-decode.c: Likewise. * cli/cli-dump.c: Likewise. * cli/cli-logging.c: Likewise. * cli/cli-script.c: Likewise. * cli/cli-utils.c: Likewise. * coffread.c: Likewise. * common/common-utils.c: Likewise. * common/queue.h: Likewise. * common/signals.c: Likewise. * common/vec.h: Likewise. * complaints.c: Likewise. * completer.c: Likewise. * corelow.c: Likewise. * cp-abi.c: Likewise. * cp-name-parser.y: Likewise. * cp-namespace.c: Likewise. * cp-support.c: Likewise. * cris-tdep.c: Likewise. * dbxread.c: Likewise. * dictionary.c: Likewise. * doublest.c: Likewise. * dsrec.c: Likewise. * dummy-frame.c: Likewise. * dwarf2-frame-tailcall.c: Likewise. * dwarf2-frame.c: Likewise. * dwarf2expr.c: Likewise. * dwarf2loc.c: Likewise. * dwarf2read.c: Likewise. * eval.c: Likewise. * event-loop.c: Likewise. * exceptions.c: Likewise. * expprint.c: Likewise. * f-valprint.c: Likewise. * fbsd-nat.c: Likewise. * findvar.c: Likewise. * frame-unwind.c: Likewise. * frame.c: Likewise. * frv-tdep.c: Likewise. * gcore.c: Likewise. * gdb-dlfcn.c: Likewise. * gdb_bfd.c: Likewise. * gdbarch.c: Likewise. * gdbarch.sh: Likewise. * gdbtypes.c: Likewise. * gnu-nat.c: Likewise. * gnu-v3-abi.c: Likewise. * go-lang.c: Likewise. * guile/scm-exception.c: Likewise. * guile/scm-gsmob.c: Likewise. * guile/scm-lazy-string.c: Likewise. * guile/scm-math.c: Likewise. * guile/scm-pretty-print.c: Likewise. * guile/scm-safe-call.c: Likewise. * guile/scm-utils.c: Likewise. * guile/scm-value.c: Likewise. * h8300-tdep.c: Likewise. * hppa-hpux-nat.c: Likewise. * hppa-tdep.c: Likewise. * hppanbsd-tdep.c: Likewise. * hppaobsd-tdep.c: Likewise. * i386-darwin-nat.c: Likewise. * i386-darwin-tdep.c: Likewise. * i386-nto-tdep.c: Likewise. * i386-tdep.c: Likewise. * i386bsd-nat.c: Likewise. * i386fbsd-tdep.c: Likewise. * i386gnu-nat.c: Likewise. * i386nbsd-tdep.c: Likewise. * i386obsd-tdep.c: Likewise. * i387-tdep.c: Likewise. * ia64-libunwind-tdep.c: Likewise. * ia64-tdep.c: Likewise. * inf-ptrace.c: Likewise. * inf-ttrace.c: Likewise. * infcall.c: Likewise. * infcmd.c: Likewise. * infrun.c: Likewise. * inline-frame.c: Likewise. * interps.c: Likewise. * jv-lang.c: Likewise. * jv-typeprint.c: Likewise. * linux-fork.c: Likewise. * linux-nat.c: Likewise. * linux-thread-db.c: Likewise. * m32c-tdep.c: Likewise. * m32r-linux-nat.c: Likewise. * m32r-tdep.c: Likewise. * m68k-tdep.c: Likewise. * m68kbsd-nat.c: Likewise. * m68kbsd-tdep.c: Likewise. * m88k-tdep.c: Likewise. * machoread.c: Likewise. * macroexp.c: Likewise. * macrotab.c: Likewise. * maint.c: Likewise. * mdebugread.c: Likewise. * memory-map.c: Likewise. * mep-tdep.c: Likewise. * mi/mi-common.c: Likewise. * microblaze-tdep.c: Likewise. * mingw-hdep.c: Likewise. * mips-linux-nat.c: Likewise. * mips-linux-tdep.c: Likewise. * mips-tdep.c: Likewise. * mips64obsd-tdep.c: Likewise. * mipsnbsd-tdep.c: Likewise. * mn10300-linux-tdep.c: Likewise. * mn10300-tdep.c: Likewise. * moxie-tdep.c: Likewise. * mt-tdep.c: Likewise. * nat/linux-btrace.c: Likewise. * nat/linux-osdata.c: Likewise. * nat/linux-ptrace.c: Likewise. * nat/mips-linux-watch.c: Likewise. * nios2-linux-tdep.c: Likewise. * nios2-tdep.c: Likewise. * objc-lang.c: Likewise. * objfiles.c: Likewise. * obsd-nat.c: Likewise. * opencl-lang.c: Likewise. * osabi.c: Likewise. * parse.c: Likewise. * ppc-linux-nat.c: Likewise. * ppc-sysv-tdep.c: Likewise. * ppcfbsd-nat.c: Likewise. * ppcfbsd-tdep.c: Likewise. * ppcnbsd-nat.c: Likewise. * ppcnbsd-tdep.c: Likewise. * ppcobsd-nat.c: Likewise. * ppcobsd-tdep.c: Likewise. * printcmd.c: Likewise. * procfs.c: Likewise. * prologue-value.c: Likewise. * psymtab.c: Likewise. * python/py-lazy-string.c: Likewise. * python/py-value.c: Likewise. * regcache.c: Likewise. * reggroups.c: Likewise. * registry.c: Likewise. * remote-sim.c: Likewise. * remote.c: Likewise. * rs6000-aix-tdep.c: Likewise. * rs6000-tdep.c: Likewise. * s390-linux-tdep.c: Likewise. * score-tdep.c: Likewise. * ser-base.c: Likewise. * ser-mingw.c: Likewise. * sh-tdep.c: Likewise. * sh64-tdep.c: Likewise. * solib-darwin.c: Likewise. * solib-spu.c: Likewise. * solib-svr4.c: Likewise. * source.c: Likewise. * sparc-nat.c: Likewise. * sparc-sol2-tdep.c: Likewise. * sparc-tdep.c: Likewise. * sparc64-sol2-tdep.c: Likewise. * sparc64-tdep.c: Likewise. * sparc64fbsd-tdep.c: Likewise. * sparc64nbsd-tdep.c: Likewise. * sparc64obsd-tdep.c: Likewise. * sparcnbsd-tdep.c: Likewise. * sparcobsd-tdep.c: Likewise. * spu-multiarch.c: Likewise. * spu-tdep.c: Likewise. * stabsread.c: Likewise. * stack.c: Likewise. * symfile.c: Likewise. * symtab.c: Likewise. * target-descriptions.c: Likewise. * target-memory.c: Likewise. * target.c: Likewise. * tic6x-linux-tdep.c: Likewise. * tic6x-tdep.c: Likewise. * tilegx-linux-nat.c: Likewise. * tilegx-tdep.c: Likewise. * top.c: Likewise. * tramp-frame.c: Likewise. * tui/tui-out.c: Likewise. * tui/tui-winsource.c: Likewise. * ui-out.c: Likewise. * user-regs.c: Likewise. * utils.c: Likewise. * v850-tdep.c: Likewise. * valops.c: Likewise. * value.c: Likewise. * varobj.c: Likewise. * vax-nat.c: Likewise. * xml-syscall.c: Likewise. * xml-tdesc.c: Likewise. * xstormy16-tdep.c: Likewise. * xtensa-linux-nat.c: Likewise. * xtensa-tdep.c: Likewise. gdb/gdbserver/ 2014-08-07 Gary Benson <gbenson@redhat.com> * server.h: Do not include gdb_assert.h.
438 lines
13 KiB
C
438 lines
13 KiB
C
/* Parts of target interface that deal with accessing memory and memory-like
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objects.
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Copyright (C) 2006-2014 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "vec.h"
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#include "target.h"
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#include "memory-map.h"
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#include <sys/time.h>
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static int
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compare_block_starting_address (const void *a, const void *b)
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{
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const struct memory_write_request *a_req = a;
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const struct memory_write_request *b_req = b;
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if (a_req->begin < b_req->begin)
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return -1;
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else if (a_req->begin == b_req->begin)
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return 0;
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else
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return 1;
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}
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/* Adds to RESULT all memory write requests from BLOCK that are
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in [BEGIN, END) range.
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If any memory request is only partially in the specified range,
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that part of the memory request will be added. */
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static void
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claim_memory (VEC(memory_write_request_s) *blocks,
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VEC(memory_write_request_s) **result,
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ULONGEST begin,
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ULONGEST end)
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{
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int i;
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ULONGEST claimed_begin;
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ULONGEST claimed_end;
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struct memory_write_request *r;
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for (i = 0; VEC_iterate (memory_write_request_s, blocks, i, r); ++i)
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{
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/* If the request doesn't overlap [BEGIN, END), skip it. We
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must handle END == 0 meaning the top of memory; we don't yet
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check for R->end == 0, which would also mean the top of
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memory, but there's an assertion in
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target_write_memory_blocks which checks for that. */
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if (begin >= r->end)
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continue;
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if (end != 0 && end <= r->begin)
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continue;
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claimed_begin = max (begin, r->begin);
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if (end == 0)
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claimed_end = r->end;
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else
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claimed_end = min (end, r->end);
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if (claimed_begin == r->begin && claimed_end == r->end)
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VEC_safe_push (memory_write_request_s, *result, r);
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else
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{
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struct memory_write_request *n =
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VEC_safe_push (memory_write_request_s, *result, NULL);
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*n = *r;
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n->begin = claimed_begin;
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n->end = claimed_end;
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n->data += claimed_begin - r->begin;
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}
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}
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}
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/* Given a vector of struct memory_write_request objects in BLOCKS,
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add memory requests for flash memory into FLASH_BLOCKS, and for
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regular memory to REGULAR_BLOCKS. */
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static void
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split_regular_and_flash_blocks (VEC(memory_write_request_s) *blocks,
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VEC(memory_write_request_s) **regular_blocks,
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VEC(memory_write_request_s) **flash_blocks)
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{
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struct mem_region *region;
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CORE_ADDR cur_address;
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/* This implementation runs in O(length(regions)*length(blocks)) time.
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However, in most cases the number of blocks will be small, so this does
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not matter.
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Note also that it's extremely unlikely that a memory write request
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will span more than one memory region, however for safety we handle
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such situations. */
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cur_address = 0;
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while (1)
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{
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VEC(memory_write_request_s) **r;
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region = lookup_mem_region (cur_address);
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r = region->attrib.mode == MEM_FLASH ? flash_blocks : regular_blocks;
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cur_address = region->hi;
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claim_memory (blocks, r, region->lo, region->hi);
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if (cur_address == 0)
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break;
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}
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}
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/* Given an ADDRESS, if BEGIN is non-NULL this function sets *BEGIN
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to the start of the flash block containing the address. Similarly,
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if END is non-NULL *END will be set to the address one past the end
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of the block containing the address. */
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static void
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block_boundaries (CORE_ADDR address, CORE_ADDR *begin, CORE_ADDR *end)
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{
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struct mem_region *region;
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unsigned blocksize;
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region = lookup_mem_region (address);
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gdb_assert (region->attrib.mode == MEM_FLASH);
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blocksize = region->attrib.blocksize;
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if (begin)
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*begin = address / blocksize * blocksize;
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if (end)
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*end = (address + blocksize - 1) / blocksize * blocksize;
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}
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/* Given the list of memory requests to be WRITTEN, this function
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returns write requests covering each group of flash blocks which must
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be erased. */
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static VEC(memory_write_request_s) *
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blocks_to_erase (VEC(memory_write_request_s) *written)
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{
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unsigned i;
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struct memory_write_request *ptr;
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VEC(memory_write_request_s) *result = NULL;
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for (i = 0; VEC_iterate (memory_write_request_s, written, i, ptr); ++i)
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{
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CORE_ADDR begin, end;
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block_boundaries (ptr->begin, &begin, 0);
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block_boundaries (ptr->end - 1, 0, &end);
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if (!VEC_empty (memory_write_request_s, result)
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&& VEC_last (memory_write_request_s, result)->end >= begin)
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{
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VEC_last (memory_write_request_s, result)->end = end;
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}
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else
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{
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struct memory_write_request *n =
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VEC_safe_push (memory_write_request_s, result, NULL);
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memset (n, 0, sizeof (struct memory_write_request));
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n->begin = begin;
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n->end = end;
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}
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}
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return result;
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}
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/* Given ERASED_BLOCKS, a list of blocks that will be erased with
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flash erase commands, and WRITTEN_BLOCKS, the list of memory
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addresses that will be written, compute the set of memory addresses
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that will be erased but not rewritten (e.g. padding within a block
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which is only partially filled by "load"). */
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static VEC(memory_write_request_s) *
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compute_garbled_blocks (VEC(memory_write_request_s) *erased_blocks,
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VEC(memory_write_request_s) *written_blocks)
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{
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VEC(memory_write_request_s) *result = NULL;
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unsigned i, j;
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unsigned je = VEC_length (memory_write_request_s, written_blocks);
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struct memory_write_request *erased_p;
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/* Look at each erased memory_write_request in turn, and
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see what part of it is subsequently written to.
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This implementation is O(length(erased) * length(written)). If
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the lists are sorted at this point it could be rewritten more
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efficiently, but the complexity is not generally worthwhile. */
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for (i = 0;
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VEC_iterate (memory_write_request_s, erased_blocks, i, erased_p);
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++i)
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{
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/* Make a deep copy -- it will be modified inside the loop, but
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we don't want to modify original vector. */
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struct memory_write_request erased = *erased_p;
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for (j = 0; j != je;)
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{
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struct memory_write_request *written
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= VEC_index (memory_write_request_s,
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written_blocks, j);
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/* Now try various cases. */
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/* If WRITTEN is fully to the left of ERASED, check the next
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written memory_write_request. */
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if (written->end <= erased.begin)
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{
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++j;
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continue;
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}
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/* If WRITTEN is fully to the right of ERASED, then ERASED
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is not written at all. WRITTEN might affect other
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blocks. */
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if (written->begin >= erased.end)
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{
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VEC_safe_push (memory_write_request_s, result, &erased);
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goto next_erased;
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}
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/* If all of ERASED is completely written, we can move on to
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the next erased region. */
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if (written->begin <= erased.begin
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&& written->end >= erased.end)
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{
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goto next_erased;
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}
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/* If there is an unwritten part at the beginning of ERASED,
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then we should record that part and try this inner loop
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again for the remainder. */
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if (written->begin > erased.begin)
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{
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struct memory_write_request *n =
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VEC_safe_push (memory_write_request_s, result, NULL);
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memset (n, 0, sizeof (struct memory_write_request));
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n->begin = erased.begin;
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n->end = written->begin;
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erased.begin = written->begin;
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continue;
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}
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/* If there is an unwritten part at the end of ERASED, we
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forget about the part that was written to and wait to see
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if the next write request writes more of ERASED. We can't
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push it yet. */
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if (written->end < erased.end)
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{
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erased.begin = written->end;
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++j;
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continue;
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}
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}
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/* If we ran out of write requests without doing anything about
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ERASED, then that means it's really erased. */
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VEC_safe_push (memory_write_request_s, result, &erased);
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next_erased:
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;
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}
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return result;
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}
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static void
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cleanup_request_data (void *p)
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{
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VEC(memory_write_request_s) **v = p;
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struct memory_write_request *r;
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int i;
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for (i = 0; VEC_iterate (memory_write_request_s, *v, i, r); ++i)
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xfree (r->data);
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}
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static void
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cleanup_write_requests_vector (void *p)
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{
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VEC(memory_write_request_s) **v = p;
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VEC_free (memory_write_request_s, *v);
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}
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int
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target_write_memory_blocks (VEC(memory_write_request_s) *requests,
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enum flash_preserve_mode preserve_flash_p,
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void (*progress_cb) (ULONGEST, void *))
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{
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struct cleanup *back_to = make_cleanup (null_cleanup, NULL);
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VEC(memory_write_request_s) *blocks = VEC_copy (memory_write_request_s,
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requests);
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unsigned i;
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int err = 0;
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struct memory_write_request *r;
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VEC(memory_write_request_s) *regular = NULL;
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VEC(memory_write_request_s) *flash = NULL;
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VEC(memory_write_request_s) *erased, *garbled;
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/* END == 0 would represent wraparound: a write to the very last
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byte of the address space. This file was not written with that
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possibility in mind. This is fixable, but a lot of work for a
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rare problem; so for now, fail noisily here instead of obscurely
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later. */
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for (i = 0; VEC_iterate (memory_write_request_s, requests, i, r); ++i)
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gdb_assert (r->end != 0);
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make_cleanup (cleanup_write_requests_vector, &blocks);
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/* Sort the blocks by their start address. */
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qsort (VEC_address (memory_write_request_s, blocks),
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VEC_length (memory_write_request_s, blocks),
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sizeof (struct memory_write_request), compare_block_starting_address);
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/* Split blocks into list of regular memory blocks,
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and list of flash memory blocks. */
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make_cleanup (cleanup_write_requests_vector, ®ular);
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make_cleanup (cleanup_write_requests_vector, &flash);
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split_regular_and_flash_blocks (blocks, ®ular, &flash);
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/* If a variable is added to forbid flash write, even during "load",
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it should be checked here. Similarly, if this function is used
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for other situations besides "load" in which writing to flash
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is undesirable, that should be checked here. */
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/* Find flash blocks to erase. */
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erased = blocks_to_erase (flash);
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make_cleanup (cleanup_write_requests_vector, &erased);
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/* Find what flash regions will be erased, and not overwritten; then
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either preserve or discard the old contents. */
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garbled = compute_garbled_blocks (erased, flash);
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make_cleanup (cleanup_request_data, &garbled);
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make_cleanup (cleanup_write_requests_vector, &garbled);
|
|
|
|
if (!VEC_empty (memory_write_request_s, garbled))
|
|
{
|
|
if (preserve_flash_p == flash_preserve)
|
|
{
|
|
struct memory_write_request *r;
|
|
|
|
/* Read in regions that must be preserved and add them to
|
|
the list of blocks we read. */
|
|
for (i = 0; VEC_iterate (memory_write_request_s, garbled, i, r); ++i)
|
|
{
|
|
gdb_assert (r->data == NULL);
|
|
r->data = xmalloc (r->end - r->begin);
|
|
err = target_read_memory (r->begin, r->data, r->end - r->begin);
|
|
if (err != 0)
|
|
goto out;
|
|
|
|
VEC_safe_push (memory_write_request_s, flash, r);
|
|
}
|
|
|
|
qsort (VEC_address (memory_write_request_s, flash),
|
|
VEC_length (memory_write_request_s, flash),
|
|
sizeof (struct memory_write_request),
|
|
compare_block_starting_address);
|
|
}
|
|
}
|
|
|
|
/* We could coalesce adjacent memory blocks here, to reduce the
|
|
number of write requests for small sections. However, we would
|
|
have to reallocate and copy the data pointers, which could be
|
|
large; large sections are more common in loadable objects than
|
|
large numbers of small sections (although the reverse can be true
|
|
in object files). So, we issue at least one write request per
|
|
passed struct memory_write_request. The remote stub will still
|
|
have the opportunity to batch flash requests. */
|
|
|
|
/* Write regular blocks. */
|
|
for (i = 0; VEC_iterate (memory_write_request_s, regular, i, r); ++i)
|
|
{
|
|
LONGEST len;
|
|
|
|
len = target_write_with_progress (current_target.beneath,
|
|
TARGET_OBJECT_MEMORY, NULL,
|
|
r->data, r->begin, r->end - r->begin,
|
|
progress_cb, r->baton);
|
|
if (len < (LONGEST) (r->end - r->begin))
|
|
{
|
|
/* Call error? */
|
|
err = -1;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
if (!VEC_empty (memory_write_request_s, erased))
|
|
{
|
|
/* Erase all pages. */
|
|
for (i = 0; VEC_iterate (memory_write_request_s, erased, i, r); ++i)
|
|
target_flash_erase (r->begin, r->end - r->begin);
|
|
|
|
/* Write flash data. */
|
|
for (i = 0; VEC_iterate (memory_write_request_s, flash, i, r); ++i)
|
|
{
|
|
LONGEST len;
|
|
|
|
len = target_write_with_progress (¤t_target,
|
|
TARGET_OBJECT_FLASH, NULL,
|
|
r->data, r->begin,
|
|
r->end - r->begin,
|
|
progress_cb, r->baton);
|
|
if (len < (LONGEST) (r->end - r->begin))
|
|
error (_("Error writing data to flash"));
|
|
}
|
|
|
|
target_flash_done ();
|
|
}
|
|
|
|
out:
|
|
do_cleanups (back_to);
|
|
|
|
return err;
|
|
}
|