X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;ds=sidebyside;f=lib%2Flibrte_eal%2Fwindows%2Feal_debug.c;h=56ed70df7d067427b0dd55cfe77da6647bd6668f;hb=ba5b133e3348dd7c266791cbb456519a27b7c08c;hp=669be6ff97c2bd15618622e9e70350f836b88c31;hpb=a083f8cc77460c15ac99a427ab6833dc8c8ae5bc;p=dpdk.git

diff --git a/lib/librte_eal/windows/eal_debug.c b/lib/librte_eal/windows/eal_debug.c
index 669be6ff97..56ed70df7d 100644
--- a/lib/librte_eal/windows/eal_debug.c
+++ b/lib/librte_eal/windows/eal_debug.c
@@ -5,16 +5,76 @@
 #include <stdarg.h>
 #include <rte_log.h>
 #include <rte_debug.h>
+#include <rte_windows.h>
 
- /* call abort(), it will generate a coredump if enabled */
+#include <dbghelp.h>
+
+#define BACKTRACE_SIZE 256
+
+/* dump the stack of the calling core */
 void
-__rte_panic(const char *funcname, const char *format, ...)
+rte_dump_stack(void)
 {
-	va_list ap;
+	PVOID stack_trace[BACKTRACE_SIZE] = {0};
+	USHORT frame_num;
+	BOOL ret;
+	HANDLE process = GetCurrentProcess();
+
+	ret = SymInitialize(process, NULL, TRUE);
+	if (!ret) {
+		RTE_LOG_WIN32_ERR("SymInitialize()");
+		return;
+	}
+
+	SymSetOptions(SYMOPT_LOAD_LINES | SYMOPT_UNDNAME);
+
+	frame_num = RtlCaptureStackBackTrace(0, BACKTRACE_SIZE,
+			stack_trace, NULL);
+
+	while (frame_num > 0) {
+		DWORD64 address = (DWORD64)(stack_trace[frame_num - 1]);
+		DWORD64 sym_disp = 0;
+		DWORD error_code = 0, lin_disp;
+		char buffer[sizeof(SYMBOL_INFO) + MAX_SYM_NAME * sizeof(TCHAR)];
+		PSYMBOL_INFO symbol_info = (PSYMBOL_INFO)buffer;
+		IMAGEHLP_LINE64 line;
+
+		symbol_info->SizeOfStruct = sizeof(SYMBOL_INFO);
+		symbol_info->MaxNameLen = MAX_SYM_NAME;
+		line.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
+
+		ret = SymFromAddr(process, address, &sym_disp, symbol_info);
+		if (!ret) {
+			error_code = GetLastError();
+			if (error_code == ERROR_INVALID_ADDRESS) {
+				/* Missing symbols, print message */
+				rte_log(RTE_LOG_ERR, RTE_LOGTYPE_EAL,
+				    "%d: [<missing_symbols>]\n", frame_num--);
+				continue;
+			} else {
+				RTE_LOG_WIN32_ERR("SymFromAddr()");
+				goto end;
+			}
+		}
+
+		ret = SymGetLineFromAddr64(process, address, &lin_disp, &line);
+		if (!ret) {
+			error_code = GetLastError();
+			/* If ERROR_INVALID_ADDRESS tag unknown and proceed */
+			if (error_code != ERROR_INVALID_ADDRESS) {
+				RTE_LOG_WIN32_ERR("SymGetLineFromAddr64()");
+				goto end;
+			}
+		}
 
-	rte_log(RTE_LOG_CRIT, RTE_LOGTYPE_EAL, "PANIC in %s():\n", funcname);
-	va_start(ap, format);
-	rte_vlog(RTE_LOG_CRIT, RTE_LOGTYPE_EAL, format, ap);
-	va_end(ap);
-	abort();
+		rte_log(RTE_LOG_ERR, RTE_LOGTYPE_EAL,
+			"%d: [%s (%s+0x%0llx)[0x%0llX]]\n", frame_num,
+			error_code ? "<unknown>" : line.FileName,
+			symbol_info->Name, sym_disp, symbol_info->Address);
+		frame_num--;
+	}
+end:
+	ret = SymCleanup(process);
+	if (!ret)
+		RTE_LOG_WIN32_ERR("SymCleanup()");
 }