• Lv Zheng's avatar
    ACPICA: Utilities: Add formatted printing APIs · 80a648c1
    Lv Zheng authored
    This patch introduces formatted printing APIs to handle ACPICA specific
    formatted print requirements. Currently only specific OSPMs will use this
    customized printing support, Linux kernel doesn't use these APIs at this
    time. It will be enabled for Linux kernel resident ACPICA after being well
    tested. So currently this patch is a no-op.
    
    The specific formatted printing APIs are useful to ACPICA as:
     1. Some portable applications do not link standard C library, so they
        cannot use standard formatted print APIs directly.
     2. Platform specific printing format may differ and thus not portable, for
        example, u64 is %ull for Linux kernel and is %uI64 for some MSVC
        versions.
     3. Platform specific printing format may conflict with ACPICA's usages
        while it is not possible for ACPICA developers to test their code for
        all platforms. For example, developers may generate %pRxxx while Linux
        kernel treats %pR as structured resource printing and decodes variable
        argument as a "struct resource" pointer.
    This patch solves above issues by introducing the new APIs.
    
    Note that users of such APIs are not introduced in this patch. Users of
    acpi_os_file_vprintf()/acpi_ut_file_printf() need to invoke acpi_os_initialize(),
    this should be taken care by the further patches where such users are
    introduced. Lv Zheng.
    Signed-off-by: default avatarLv Zheng <lv.zheng@intel.com>
    Signed-off-by: default avatarBob Moore <robert.moore@intel.com>
    Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
    80a648c1
Makefile 2.33 KB