| 201 | } |
| 202 | |
| 203 | async loadSymbols(libName) { |
| 204 | this.parsePos = 0; |
| 205 | if (this.apkEmbeddedLibrary && libName.endsWith('.apk')) { |
| 206 | libName = this.apkEmbeddedLibrary; |
| 207 | } |
| 208 | if (this.targetRootFS) { |
| 209 | libName = libName.substring(libName.lastIndexOf('/') + 1); |
| 210 | libName = this.targetRootFS + libName; |
| 211 | } |
| 212 | try { |
| 213 | this.symbols = [ |
| 214 | os.system(this.nmExec, ['-C', '-n', '-S', libName], -1, -1), |
| 215 | os.system(this.nmExec, ['-C', '-n', '-S', '-D', libName], -1, -1) |
| 216 | ]; |
| 217 | |
| 218 | try { |
| 219 | // Try to find separate debug symbols for the library in |
| 220 | // /usr/lib/debug/.build-id, getting the build-id from the binary |
| 221 | // notes using readelf. |
| 222 | const binaryNotes = os.system(this.readelfExec, ['-n', libName], -1, -1) |
| 223 | const buildId = /Build ID: ([a-zA-Z0-9]+)/.exec(binaryNotes)?.[1]?.toLowerCase() ?? null; |
| 224 | |
| 225 | if (buildId) { |
| 226 | const debugLibName = `/usr/lib/debug/.build-id/${buildId.slice(0, 2)}/${buildId.slice(2)}.debug`; |
| 227 | this.symbols.push( |
| 228 | os.system(this.nmExec, ['-C', '-n', '-S', debugLibName], -1, -1), |
| 229 | os.system(this.nmExec, ['-C', '-n', '-S', '-D', debugLibName], -1, -1) |
| 230 | ); |
| 231 | } |
| 232 | } catch { |
| 233 | // Ignore errors. |
| 234 | } |
| 235 | |
| 236 | const objdumpOutput = os.system(this.objdumpExec, ['-h', libName], -1, -1); |
| 237 | for (const line of objdumpOutput.split('\n')) { |
| 238 | const [, sectionName, , vma, , fileOffset] = line.trim().split(/\s+/); |
| 239 | if (sectionName === ".text") { |
| 240 | this.fileOffsetMinusVma = |
| 241 | this.parseHexAddr(fileOffset) - this.parseHexAddr(vma); |
| 242 | } |
| 243 | } |
| 244 | } catch (e) { |
| 245 | // If the library cannot be found on this system let's not panic. |
| 246 | this.symbols = ['', '']; |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | parseNextLine() { |
| 251 | if (this.symbols.length == 0) return false; |