Changeset 89971 in vbox for trunk/src/VBox/Runtime/common/dbg

Timestamp:

Jun 30, 2021 9:37:27 AM (3 years ago)

Author:

vboxsync

Message:

Runtime/RTDbgCfg: Add API to look for a DWARF debug file by build-id and add basic support to talk to a debuginfod server

File:

• trunk/src/VBox/Runtime/common/dbg/dbgcfg.cpp (modified) (5 diffs)

trunk/src/VBox/Runtime/common/dbg/dbgcfg.cpp

@@ -729 +729 @@
     if (!pszCacheSubDir || !*pszCacheSubDir)
         return VWRN_NOT_FOUND;
-    if (!(fFlags & RTDBGCFG_O_SYMSRV))
+    if (   !(fFlags & RTDBGCFG_O_SYMSRV)
+        && !(fFlags & RTDBGCFG_O_DEBUGINFOD))
         return VWRN_NOT_FOUND;
 
@@ -794 +795 @@
             RTHttpSetFollowRedirects(hHttp, 8);
 
-            static const char * const s_apszHeaders[] =
+            static const char * const s_apszHeadersMsSymSrv[] =
             {
                 "User-Agent: Microsoft-Symbol-Server/6.6.0999.9",
@@ -800 +801 @@
             };
 
-            rc = RTHttpSetHeaders(hHttp, RT_ELEMENTS(s_apszHeaders), s_apszHeaders);
+            static const char * const s_apszHeadersDebuginfod[] =
+            {
+                "User-Agent: IPRT DbgCfg 1.0",
+                "Pragma: no-cache",
+            };
+
+            if (fFlags & RTDBGCFG_O_SYMSRV)
+                rc = RTHttpSetHeaders(hHttp, RT_ELEMENTS(s_apszHeadersMsSymSrv), s_apszHeadersMsSymSrv);
+            else /* Must be debuginfod. */
+                rc = RTHttpSetHeaders(hHttp, RT_ELEMENTS(s_apszHeadersDebuginfod), s_apszHeadersDebuginfod);
             if (RT_SUCCESS(rc))
             {
-                RTStrPrintf(szUrl, sizeof(szUrl), "%s/%s/%s/%s", pszServer, pszFilename, pszCacheSubDir, pszFilename);
+                if (fFlags & RTDBGCFG_O_SYMSRV)
+                    RTStrPrintf(szUrl, sizeof(szUrl), "%s/%s/%s/%s", pszServer, pszFilename, pszCacheSubDir, pszFilename);
+                else
+                    RTStrPrintf(szUrl, sizeof(szUrl), "%s/buildid/%s/debuginfo", pszServer, pszCacheSubDir);
 
                 /** @todo Use some temporary file name and rename it after the operation
@@ -815 +828 @@
                     rtDbgCfgLog1(pThis, "%Rrc on URL '%s'\n", rc, szUrl);
                 }
-                if (rc == VERR_HTTP_NOT_FOUND)
+                if (   rc == VERR_HTTP_NOT_FOUND
+                    && (fFlags & RTDBGCFG_O_SYMSRV))
                 {
                     /* Try the compressed version of the file. */
@@ -1390 +1404 @@
                                   RT_OPSYS_UNKNOWN | RTDBGCFG_O_EXT_DEBUG_FILE,
                                   pfnCallback, pvUser1, pvUser2);
+}
+
+
+RTDECL(int) RTDbgCfgOpenDwoBuildId(RTDBGCFG hDbgCfg, const char *pszFilename, const uint8_t *pbBuildId,
+                                   size_t cbBuildId, PFNRTDBGCFGOPEN pfnCallback, void *pvUser1, void *pvUser2)
+{
+    char *pszSubDir = NULL;
+    int rc = RTStrAPrintf(&pszSubDir, "%#.*Rhxs", cbBuildId, pbBuildId);
+    if (RT_SUCCESS(rc))
+    {
+        rc = rtDbgCfgOpenWithSubDir(hDbgCfg, pszFilename, pszSubDir, NULL,
+                                    RTDBGCFG_O_DEBUGINFOD | RT_OPSYS_UNKNOWN | RTDBGCFG_O_EXT_DEBUG_FILE,
+                                    pfnCallback, pvUser1, pvUser2);
+        RTStrFree(pszSubDir);
+    }
+
+    return rc;
 }