Changeset 80487bc5 in mainline for uspace

Timestamp:

2010-01-25T21:40:13Z (16 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

e515b21a

Parents:

0d21b53

Message:

Allow taskdump to read register state and extract PC, FP (not implemented for all arches).

Location:

uspace

Files:

• app/taskdump/taskdump.c (modified) (4 diffs)
• lib/libc/arch/amd64/include/istate.h (added)
• lib/libc/arch/arm32/include/istate.h (added)
• lib/libc/arch/ia32/include/istate.h (added)
• lib/libc/arch/ia64/include/istate.h (added)
• lib/libc/arch/mips32/include/istate.h (added)
• lib/libc/arch/mips32eb/include/istate.h (added)
• lib/libc/arch/ppc32/include/istate.h (added)
• lib/libc/arch/sparc64/include/istate.h (added)
• lib/libc/generic/udebug.c (modified) (1 diff)
• lib/libc/include/udebug.h (modified) (1 diff)

uspace/app/taskdump/taskdump.c

@@ -41 +41 @@
 #include <task.h>
 #include <kernel/mm/as.h>
+#include <libarch/istate.h>
 #include <macros.h>
 #include <assert.h>
@@ -58 +59 @@
 static void print_syntax();
 static int threads_dump(void);
+static int thread_dump(uintptr_t thash);
 static int areas_dump(void);
 static int area_dump(as_area_info_t *area);
@@ -229 +231 @@
         for (i = 0; i < n_threads; i++) {
                 printf(" [%d] hash: 0x%lx\n", 1+i, thash_buf[i]);
+
+                thread_dump(thash_buf[i]);
         }
         putchar('\n');
@@ -291 +295 @@
 }
 
+static int thread_dump(uintptr_t thash)
+{
+        istate_t istate;
+        uintptr_t pc, fp;
+        int rc;
+
+        rc = udebug_regs_read(phoneid, thash, &istate);
+        if (rc < 0) {
+                printf("Failed reading registers (%d).\n", rc);
+                return EIO;
+        }
+
+        pc = istate_get_pc(&istate);
+        fp = istate_get_fp(&istate);
+
+        printf("Thread 0x%lx crashed at PC 0x%lx. FP 0x%lx\n", thash, pc, fp);
+        printf("Istate hexdump:\n");
+        hex_dump(0, &istate, (sizeof(istate_t) + 15) & ~15);
+
+        return EOK;
+}
+
 static int area_dump(as_area_info_t *area)
 {

uspace/lib/libc/generic/udebug.c

@@ -97 +97 @@
 }
 
+int udebug_regs_read(int phoneid, thash_t tid, void *buffer)
+{
+        return async_req_3_0(phoneid, IPC_M_DEBUG_ALL, UDEBUG_M_REGS_READ,
+            tid, (sysarg_t)buffer);
+}
+
 int udebug_go(int phoneid, thash_t tid, udebug_event_t *ev_type,
     sysarg_t *val0, sysarg_t *val1)

uspace/lib/libc/include/udebug.h

@@ -51 +51 @@
 int udebug_mem_read(int phoneid, void *buffer, uintptr_t addr, size_t n);
 int udebug_args_read(int phoneid, thash_t tid, sysarg_t *buffer);
+int udebug_regs_read(int phoneid, thash_t tid, void *buffer);
 int udebug_go(int phoneid, thash_t tid, udebug_event_t *ev_type,
         sysarg_t *val0, sysarg_t *val1);