Commit 8ca761f6 authored by Peter Feiner's avatar Peter Feiner Committed by Anthony Liguori
Browse files

exec: make -mem-path filenames deterministic 



Adds ramblocks' names to their backing files when using -mem-path.  Eases
introspection and debugging.

Signed-off-by: default avatarPeter Feiner <peter@gridcentric.ca>
Message-id: 1362423265-15855-1-git-send-email-peter@gridcentric.ca
Signed-off-by: default avatarAnthony Liguori <aliguori@us.ibm.com>
parent 4524051c

exec.c

+12 −1
Original line number Diff line number Diff line
@@ -844,6 +844,8 @@ static void *file_ram_alloc(RAMBlock *block, 
                            const char *path)

{

    char *filename;

    char *sanitized_name;

    char *c;

    void *area;

    int fd;

#ifdef MAP_POPULATE
@@ -865,7 +867,16 @@ static void *file_ram_alloc(RAMBlock *block, 
        return NULL;

    }



    filename = g_strdup_printf("%s/qemu_back_mem.XXXXXX", path);

    /* Make name safe to use with mkstemp by replacing '/' with '_'. */

    sanitized_name = g_strdup(block->mr->name);

    for (c = sanitized_name; *c != '\0'; c++) {

        if (*c == '/')

            *c = '_';

    }



    filename = g_strdup_printf("%s/qemu_back_mem.%s.XXXXXX", path,

                               sanitized_name);

    g_free(sanitized_name);



    fd = mkstemp(filename);

    if (fd < 0) {