1sign define GdbBreakpoint text=● 2sign define GdbCurrentLine text=⇒ 3 4 5let s:gdb_port = 7778 6let s:run_gdb = "gdb -q -f build/bin/nvim" 7let s:breakpoints = {} 8let s:max_breakpoint_sign_id = 0 9 10 11let s:GdbServer = {} 12 13 14function s:GdbServer.new(gdb) 15 let this = copy(self) 16 let this._gdb = a:gdb 17 return this 18endfunction 19 20 21function s:GdbServer.on_exit() 22 let self._gdb._server_exited = 1 23endfunction 24 25 26let s:GdbPaused = vimexpect#State([ 27 \ ['Continuing.', 'continue'], 28 \ ['\v[\o32]{2}([^:]+):(\d+):\d+', 'jump'], 29 \ ['Remote communication error. Target disconnected.:', 'retry'], 30 \ ]) 31 32 33function s:GdbPaused.continue(...) 34 call self._parser.switch(s:GdbRunning) 35 call self.update_current_line_sign(0) 36endfunction 37 38 39function s:GdbPaused.jump(file, line, ...) 40 if tabpagenr() != self._tab 41 " Don't jump if we are not in the debugger tab 42 return 43 endif 44 let window = winnr() 45 exe self._jump_window 'wincmd w' 46 let self._current_buf = bufnr('%') 47 let target_buf = bufnr(a:file, 1) 48 if bufnr('%') != target_buf 49 exe 'buffer ' target_buf 50 let self._current_buf = target_buf 51 endif 52 exe ':' a:line 53 let self._current_line = a:line 54 exe window 'wincmd w' 55 call self.update_current_line_sign(1) 56endfunction 57 58 59function s:GdbPaused.retry(...) 60 if self._server_exited 61 return 62 endif 63 sleep 1 64 call self.attach() 65 call self.send('continue') 66endfunction 67 68 69let s:GdbRunning = vimexpect#State([ 70 \ ['\v^Breakpoint \d+', 'pause'], 71 \ ['\v\[Inferior\ +.{-}\ +exited\ +normally', 'disconnected'], 72 \ ['(gdb)', 'pause'], 73 \ ]) 74 75 76function s:GdbRunning.pause(...) 77 call self._parser.switch(s:GdbPaused) 78 if !self._initialized 79 call self.send('set confirm off') 80 call self.send('set pagination off') 81 if !empty(self._server_addr) 82 call self.send('set remotetimeout 50') 83 call self.attach() 84 call s:RefreshBreakpoints() 85 call self.send('c') 86 endif 87 let self._initialized = 1 88 endif 89endfunction 90 91 92function s:GdbRunning.disconnected(...) 93 if !self._server_exited && self._reconnect 94 " Refresh to force a delete of all watchpoints 95 call s:RefreshBreakpoints() 96 sleep 1 97 call self.attach() 98 call self.send('continue') 99 endif 100endfunction 101 102 103let s:Gdb = {} 104 105 106function s:Gdb.kill() 107 tunmap <f8> 108 tunmap <f10> 109 tunmap <f11> 110 tunmap <f12> 111 call self.update_current_line_sign(0) 112 exe 'bd! '.self._client_buf 113 if self._server_buf != -1 114 exe 'bd! '.self._server_buf 115 endif 116 exe 'tabnext '.self._tab 117 tabclose 118 unlet g:gdb 119endfunction 120 121 122function! s:Gdb.send(data) 123 call jobsend(self._client_id, a:data."\<cr>") 124endfunction 125 126 127function! s:Gdb.attach() 128 call self.send(printf('target remote %s', self._server_addr)) 129endfunction 130 131 132function! s:Gdb.update_current_line_sign(add) 133 " to avoid flicker when removing/adding the sign column(due to the change in 134 " line width), we switch ids for the line sign and only remove the old line 135 " sign after marking the new one 136 let old_line_sign_id = get(self, '_line_sign_id', 4999) 137 let self._line_sign_id = old_line_sign_id == 4999 ? 4998 : 4999 138 if a:add && self._current_line != -1 && self._current_buf != -1 139 exe 'sign place '.self._line_sign_id.' name=GdbCurrentLine line=' 140 \.self._current_line.' buffer='.self._current_buf 141 endif 142 exe 'sign unplace '.old_line_sign_id 143endfunction 144 145 146function! s:Spawn(server_cmd, client_cmd, server_addr, reconnect) 147 if exists('g:gdb') 148 throw 'Gdb already running' 149 endif 150 let gdb = vimexpect#Parser(s:GdbRunning, copy(s:Gdb)) 151 " gdbserver port 152 let gdb._server_addr = a:server_addr 153 let gdb._reconnect = a:reconnect 154 let gdb._initialized = 0 155 " window number that will be displaying the current file 156 let gdb._jump_window = 1 157 let gdb._current_buf = -1 158 let gdb._current_line = -1 159 let gdb._has_breakpoints = 0 160 let gdb._server_exited = 0 161 " Create new tab for the debugging view 162 tabnew 163 let gdb._tab = tabpagenr() 164 " create horizontal split to display the current file and maybe gdbserver 165 sp 166 let gdb._server_buf = -1 167 if type(a:server_cmd) == type('') 168 " spawn gdbserver in a vertical split 169 let server = s:GdbServer.new(gdb) 170 vsp | enew | let gdb._server_id = termopen(a:server_cmd, server) 171 let gdb._jump_window = 2 172 let gdb._server_buf = bufnr('%') 173 endif 174 " go to the bottom window and spawn gdb client 175 wincmd j 176 enew | let gdb._client_id = termopen(a:client_cmd, gdb) 177 let gdb._client_buf = bufnr('%') 178 tnoremap <silent> <f8> <c-\><c-n>:GdbContinue<cr>i 179 tnoremap <silent> <f10> <c-\><c-n>:GdbNext<cr>i 180 tnoremap <silent> <f11> <c-\><c-n>:GdbStep<cr>i 181 tnoremap <silent> <f12> <c-\><c-n>:GdbFinish<cr>i 182 " go to the window that displays the current file 183 exe gdb._jump_window 'wincmd w' 184 let g:gdb = gdb 185endfunction 186 187 188function! s:Test(bang, filter) 189 let cmd = "GDB=1 make test" 190 if a:bang == '!' 191 let server_addr = '| vgdb' 192 let cmd = printf('VALGRIND=1 %s', cmd) 193 else 194 let server_addr = printf('localhost:%d', s:gdb_port) 195 let cmd = printf('GDBSERVER_PORT=%d %s', s:gdb_port, cmd) 196 endif 197 if a:filter != '' 198 let cmd = printf('TEST_SCREEN_TIMEOUT=1000000 TEST_FILTER="%s" %s', a:filter, cmd) 199 endif 200 call s:Spawn(cmd, s:run_gdb, server_addr, 1) 201endfunction 202 203 204function! s:ToggleBreak() 205 let file_name = bufname('%') 206 let file_breakpoints = get(s:breakpoints, file_name, {}) 207 let linenr = line('.') 208 if has_key(file_breakpoints, linenr) 209 call remove(file_breakpoints, linenr) 210 else 211 let file_breakpoints[linenr] = 1 212 endif 213 let s:breakpoints[file_name] = file_breakpoints 214 call s:RefreshBreakpointSigns() 215 call s:RefreshBreakpoints() 216endfunction 217 218 219function! s:ClearBreak() 220 let s:breakpoints = {} 221 call s:RefreshBreakpointSigns() 222 call s:RefreshBreakpoints() 223endfunction 224 225 226function! s:RefreshBreakpointSigns() 227 let buf = bufnr('%') 228 let i = 5000 229 while i <= s:max_breakpoint_sign_id 230 exe 'sign unplace '.i 231 let i += 1 232 endwhile 233 let s:max_breakpoint_sign_id = 0 234 let id = 5000 235 for linenr in keys(get(s:breakpoints, bufname('%'), {})) 236 exe 'sign place '.id.' name=GdbBreakpoint line='.linenr.' buffer='.buf 237 let s:max_breakpoint_sign_id = id 238 let id += 1 239 endfor 240endfunction 241 242 243function! s:RefreshBreakpoints() 244 if !exists('g:gdb') 245 return 246 endif 247 if g:gdb._parser.state() == s:GdbRunning 248 " pause first 249 call jobsend(g:gdb._client_id, "\<c-c>") 250 endif 251 if g:gdb._has_breakpoints 252 call g:gdb.send('delete') 253 endif 254 let g:gdb._has_breakpoints = 0 255 for [file, breakpoints] in items(s:breakpoints) 256 for linenr in keys(breakpoints) 257 let g:gdb._has_breakpoints = 1 258 call g:gdb.send('break '.file.':'.linenr) 259 endfor 260 endfor 261endfunction 262 263 264function! s:GetExpression(...) range 265 let [lnum1, col1] = getpos("'<")[1:2] 266 let [lnum2, col2] = getpos("'>")[1:2] 267 let lines = getline(lnum1, lnum2) 268 let lines[-1] = lines[-1][:col2 - 1] 269 let lines[0] = lines[0][col1 - 1:] 270 return join(lines, "\n") 271endfunction 272 273 274function! s:Send(data) 275 if !exists('g:gdb') 276 throw 'Gdb is not running' 277 endif 278 call g:gdb.send(a:data) 279endfunction 280 281 282function! s:Eval(expr) 283 call s:Send(printf('print %s', a:expr)) 284endfunction 285 286 287function! s:Watch(expr) 288 let expr = a:expr 289 if expr[0] != '&' 290 let expr = '&' . expr 291 endif 292 293 call s:Eval(expr) 294 call s:Send('watch *$') 295endfunction 296 297 298function! s:Interrupt() 299 if !exists('g:gdb') 300 throw 'Gdb is not running' 301 endif 302 call jobsend(g:gdb._client_id, "\<c-c>info line\<cr>") 303endfunction 304 305 306function! s:Kill() 307 if !exists('g:gdb') 308 throw 'Gdb is not running' 309 endif 310 call g:gdb.kill() 311endfunction 312 313 314command! GdbDebugNvim call s:Spawn(printf('make && gdbserver localhost:%d build/bin/nvim', s:gdb_port), s:run_gdb, printf('localhost:%d', s:gdb_port), 0) 315command! -nargs=1 GdbDebugServer call s:Spawn(0, s:run_gdb, 'localhost:'.<q-args>, 0) 316command! -bang -nargs=? GdbDebugTest call s:Test(<q-bang>, <q-args>) 317command! -nargs=1 -complete=file GdbInspectCore call s:Spawn(0, printf('gdb -q -f -c %s build/bin/nvim', <q-args>), 0, 0) 318command! GdbDebugStop call s:Kill() 319command! GdbToggleBreakpoint call s:ToggleBreak() 320command! GdbClearBreakpoints call s:ClearBreak() 321command! GdbContinue call s:Send("c") 322command! GdbNext call s:Send("n") 323command! GdbStep call s:Send("s") 324command! GdbFinish call s:Send("finish") 325command! GdbFrameUp call s:Send("up") 326command! GdbFrameDown call s:Send("down") 327command! GdbInterrupt call s:Interrupt() 328command! GdbEvalWord call s:Eval(expand('<cword>')) 329command! -range GdbEvalRange call s:Eval(s:GetExpression(<f-args>)) 330command! GdbWatchWord call s:Watch(expand('<cword>') 331command! -range GdbWatchRange call s:Watch(s:GetExpression(<f-args>)) 332 333 334nnoremap <silent> <f8> :GdbContinue<cr> 335nnoremap <silent> <f10> :GdbNext<cr> 336nnoremap <silent> <f11> :GdbStep<cr> 337nnoremap <silent> <f12> :GdbFinish<cr> 338nnoremap <silent> <c-b> :GdbToggleBreakpoint<cr> 339nnoremap <silent> <m-pageup> :GdbFrameUp<cr> 340nnoremap <silent> <m-pagedown> :GdbFrameDown<cr> 341nnoremap <silent> <f9> :GdbEvalWord<cr> 342vnoremap <silent> <f9> :GdbEvalRange<cr> 343nnoremap <silent> <m-f9> :GdbWatchWord<cr> 344vnoremap <silent> <m-f9> :GdbWatchRange<cr> 345