Re: [U-Boot] SUCCESS: Building U-Boot for MIPS64 on Windows7

Hi,

On Thu, Aug 2, 2018 at 6:48 AM, George Robinson george.robinson@prototech.us wrote:

I was able to successfully Build U-Boot v2018.07 under Windows 7 SP1 (64bit)

• under MinGW64_NT-6.1 ( a.k.a. MSYS2 or MSYS64 )
• using the native host toolchain (with GCC v7.3.0 for x86_64 code

generation on x86_64 CPU)

• using the target toolchain (with GCC v5.3.0 for MIPS code generation on

x86_64 CPU (Sourcery CodeBench Lite 2016.05-8) )

by modifying the function parse_dep_file() defnied in u-boot-master/scripts/basic/fixdep.c, as illustrated below:

The change was necessary because the command "gcc cc -Wp,-MD, dependencyfile.o.d..." generates a dependency file containg Windows style paths like: C:\src\bin ...instead of the Linux like path, like: /c/src/bin

static void parse_dep_file(void *map, size_t len) { char *m = map; char *end = m + len; char *p; char s[PATH_MAX]; int is_target; int saw_any_target = 0; int is_first_dep = 0;

    while (m < end) {
            /* Skip any "white space" */
            while (m < end && (*m == ' ' || *m == '\t' || *m == '\\' ||

*m == '\r' || *m == '\n')) m++; /* Skip any "non-white space" */ p = m; while (p < end && *p != ' ' && *p != '\t' && *p != '\' && *p != '\r' && *p != '\n') p++;

            /* Convert any Windows paths into Cygwin paths, just like

"cygpath -u <windowspath>" would do. */ if( ( (p-m) >=2) && (*(m+1) == ':') && ((*(m+2) == '/') || (*(m+2) == '\')) && (((*m>='A') && (*m<='Z')) || ((*m>='a') && (*m<='z'))) ) { *(m+1)= (*m) | 0x20; //Convert the drive letter to lowercase and move it where the colon was *m = '/'; //Prepend a forward slash //*(m+2) = '/'; //Make sure a forward slash follows the drive letter

                    // Substitute remaining backslashes in the Windows

path, with forward slashes while (p < end && *p != ' ' && *p != '\t' && *p != '\r' && *p != '\n') { if(*p == '\') *p = '/'; p++; } #ifdef FIXDEP_DBG fprintf(stderr,"FIXDEP: Windows path at %ld= %s\n", m-(char*)map, m); #endif }

            /* Is the token we found a target name? */
            is_target = (*(p-1) == ':');
            /* Don't write any target names into the dependency file */
            if (is_target) {
                    /* The /next/ file is the first dependency */
                    is_first_dep = 1;
            } else if( (p-m) > 0 )
            {       /* Save this token/filename */
                    memcpy(s, m, p-m);
                    s[p - m] = 0;


                    /* Ignore certain dependencies */
                    if (strrcmp(s, "include/generated/autoconf.h") &&
                        strrcmp(s, "arch/um/include/uml-config.h") &&
                        strrcmp(s, "include/linux/kconfig.h") &&
                        strrcmp(s, ".ver")) {
                            /*
                             * Do not list the source file as

dependency, * so that kbuild is not confused if a .c file * is rewritten into .S or vice versa. Storing * it in source_* is needed for modpost to * compute srcversions. */ if (is_first_dep) { /* * If processing the concatenation of * multiple dependency files, only * process the first target name, which * will be the original source name, * and ignore any other target names, * which will be intermediate temporary * files. */ if (!saw_any_target) { saw_any_target = 1; printf("source_%s := %s\n\n", target, s); printf("deps_%s := \\n", target); } is_first_dep = 0; } else printf(" %s \\n", s); do_config_file(s); } } /* * Start searching for next token immediately after the first * "whitespace" character that follows this token. */ m = p + 1; }

    if (!saw_any_target) {
            fprintf(stderr, "fixdep: parse error; no targets found\n");
            exit(1);
    }

    printf("\n%s: $(deps_%s)\n\n", target, target);
    printf("$(deps_%s):\n", target);

}

Also the command "gcc -print-file-name=include" generates such Windows style paths. They can be adjusted by patching the NOSTDINC_FLAGS assignment in the main Makefile as such:

PossiblyWinPath = $(shell $(CC) -print-file-name=include) NOSTDINC_FLAGS += -nostdinc -isystem $(shell cygpath -u $(subst \,/,$(PossiblyWinPath))) CHECKFLAGS += $(NOSTDINC_FLAGS)

Besides the above, in order to get it to compile I had to define the following data types because they were Linux-specific and were not defined in the sys/types.h belonging to MinGW64.

#ifdef __CHECKER__ #define __bitwise__ __attribute__((bitwise)) #else #define __bitwise__ #endif #ifdef __CHECK_ENDIAN__ #define __bitwise __bitwise__ #else #define __bitwise #endif

typedef unsigned short __u16; typedef unsigned int __u32; typedef unsigned long long int __u64;

typedef __u16 __bitwise __le16; typedef __u16 __bitwise __be16; typedef __u32 __bitwise __le32; typedef __u32 __bitwise __be32; #if defined(__GNUC__) typedef __u64 __bitwise __le64; typedef __u64 __bitwise __be64; #endif typedef __u16 __bitwise __sum16; typedef __u32 __bitwise __wsum;

Also, I had to add: #include <linux/byteorder/swab.h>

...to the file tools/zynqmpbif.c, because__swab32 was not defined anywhere in the default headers.

Is, this of any interest to anyone ?

Yes, please get the patch properly formatted and submit to the ML for review and testing. Thanks!

Regards, Bin