Commit 9bd9b758 authored by Nicolas Pitre's avatar Nicolas Pitre Committed by Anas Nashif
Browse files

Kconfig: introduce CONFIG_64BIT 



This is the generic symbol to select or otherwise test for when 64-bit
compilation is desired. Two trivial usages of this symbol are also
included.

Signed-off-by: default avatarNicolas Pitre <npitre@baylibre.com>
parent 9354bb5a

arch/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -83,6 +83,15 @@ config BIG_ENDIAN 
         is used to select linker script OUTPUT_FORMAT and command

         line option for gen_isr_tables.py.



config 64BIT

	bool

	help

	  This option tells the build system that the target system is

	  using a 64-bit address space, meaning that pointer and long types

	  are 64 bits wide. This option is selected by arch/$ARCH/Kconfig,

	  soc/**/Kconfig, or boards/**/Kconfig and the user should generally

	  avoid modifying it.



if ARC || ARM || NIOS2 || X86



config SRAM_SIZE

arch/common/gen_isr_tables.py

+6 −3
Original line number Diff line number Diff line
@@ -41,7 +41,7 @@ def endian_prefix(): 
    else:

        return "<"



def read_intlist(intlist_path):

def read_intlist(intlist_path, syms):

    """read a binary file containing the contents of the kernel's .intList

    section. This is an instance of a header created by

    include/linker/intlist.ld:
@@ -71,6 +71,9 @@ def read_intlist(intlist_path): 
    prefix = endian_prefix()



    intlist_header_fmt = prefix + "II"

    if "CONFIG_64BIT" in syms:

        intlist_entry_fmt = prefix + "iiQQ"

    else:

        intlist_entry_fmt = prefix + "iiII"



    with open(intlist_path, "rb") as fp:
@@ -220,7 +223,7 @@ def main(): 


                debug('3rd level offsets: {}'.format(list_3rd_lvl_offsets))



    intlist = read_intlist(args.intlist)

    intlist = read_intlist(args.intlist, syms)

    nvec = intlist["num_vectors"]

    offset = intlist["offset"]

tests/lib/c_lib/src/main.c

+4 −1
Original line number Diff line number Diff line
@@ -84,8 +84,11 @@ volatile size_t size_of_long_variable = sizeof(long_variable); 


void test_stddef(void)

{



#ifdef CONFIG_64BIT

	zassert_true((size_of_long_variable == 8), "sizeof");

#else

	zassert_true((size_of_long_variable == 4), "sizeof");

#endif

}



/*

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