Hi UEFI community,
I’d like to inform you about an update in the *CdePkg* branch of
edk2-staging.
https://github.com/tianocore/edk2-staging/tree/CdePkg#cdepkg
The goal of the *CdePkg* is to provide an *ANSI C Interface* for UEFI
POST drivers,
that enables BIOS engineers to (more) easily port standard C programs
or libraries
(e.g. the openSSL library, already done) to POST drivers.
Furthermore the *ANSI C Interface* is disseminated widely, also it’s
bugs and pitfalls are known very well
by a broad range of IT professionals and may help to be better
supportable by the open source initiative
compared to the proprietary interface that is available today in
Tianocore UEFI.
Now *3*new ANSI C functions *_w**assert()* *from ASSERT.H* and
*setlocale(), localeconv()**from LOCALE.H***
are introduced for *PEI* and *DXE*.
Currently there are *13* examples implemented, demonstrating all in
all *110* functions defined by ANSI C:
1. *argvc:
*https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/HOSTED_ENV/argcv/main.c#L57*//*
argc/argv handling according to
https://msdn.microsoft.com/en-us/library/a1y7w461.aspx
<https://msdn.microsoft.com/en-us/library/a1y7w461.aspx>
2. *systeminterfacePEI*:
https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/SYSTEM_IF/systeminterfacePEI/main.c#L57
demonstration, how *PeiServices*and *FileHandle*are passed into *main()*
3. *systeminterfaceDXE*:
https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/SYSTEM_IF/systeminterfaceDXE/main.c#L57
demonstration, how *SystemTable*and *ImageHandle*are passed into *main()*
*__*
*_ANSI C LIBRARY functions:_*
4. *time.h
**clock()*:https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/TIME_H/clock/main.c#L1
for PEI and DXE phase. It provides TSC based, millisecond precise,
exact and chipset independent *clock() *function.
*NOTE: in emulation mode the TSC nominal frequency is supposed to be 1GHz*
https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/clock?view=vs-2019
5. *time.h **difftime()*:
https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/difftime-difftime32-difftime64?view=vs-2019
*time.h **mktime()*:
https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/mktime-mktime32-mktime64?view=vs-2019
<%20https:/docs.microsoft.com/en-us/cpp/c-runtime-library/reference/mktime-mktime32-mktime64?view=vs-2019>
*time.h **time()*:
https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/time-time32-time64?view=vs-2019
<%20https:/docs.microsoft.com/en-us/cpp/c-runtime-library/reference/time-time32-time64?view=vs-2019>
*time.h **asctime()*:
https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/asctime-wasctime?view=vs-2019
*time.h c**time()*:
https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/ctime-ctime32-ctime64-wctime-wctime32-wctime64?view=vs-2019
*time.h gm**time()*:
https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/gmtime-gmtime32-gmtime64?view=vs-2019
*time.h local**time()*:
https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/localtime-localtime32-localtime64?view=vs-2019
*time.h strf**time()*:
https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strftime-wcsftime-strftime-l-wcsftime-l?view=vs-2019
*NOTE: All TIME.H functions support UTC only.*
All functions are tested in one single driver PEI/DXE:
https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/TIME_H/timehfunctions/main.c#L52
6. *STRING.H
**memcpy():*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/memcpy-wmemcpy?view=vs-2019
*STRING.H
**memmove():*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/memmove-wmemmove?view=vs-2019**
*STRING.H strcpy():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strcpy-wcscpy-mbscpy?view=vs-2019
*STRING.H **strncpy():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strncpy-strncpy-l-wcsncpy-wcsncpy-l-mbsncpy-mbsncpy-l?view=vs-2019
*STRING.H **strcat():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strcat-wcscat-mbscat?view=vs-2019
*STRING.H **strncat():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strncat-strncat-l-wcsncat-wcsncat-l-mbsncat-mbsncat-l?view=vs-2019
*STRING.H **memcmp():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/memcmp-wmemcmp?view=vs-2019
*STRING.H **strcmp():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strcmp-wcscmp-mbscmp?view=vs-2019
*STRING.H **strncmp():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strncmp-wcsncmp-mbsncmp-mbsncmp-l?view=vs-2019
*STRING.H **memchr():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/memchr-wmemchr?view=vs-2019
*STRING.H **strchr():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strchr-wcschr-mbschr-mbschr-l?view=vs-2019
*STRING.H **strcspn():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strcspn-wcscspn-mbscspn-mbscspn-l?view=vs-2019
*STRING.H **strpbrk():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strpbrk-wcspbrk-mbspbrk-mbspbrk-l?view=vs-2019
*STRING.H **strrchr():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strrchr-wcsrchr-mbsrchr-mbsrchr-l?view=vs-2019
*STRING.H **strspn():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strspn-wcsspn-mbsspn-mbsspn-l?view=vs-2019
*STRING.H **strstr():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strtok-strtok-l-wcstok-wcstok-l-mbstok-mbstok-l?view=vs-2019
*STRING.H **strtok():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strtok-strtok-l-wcstok-wcstok-l-mbstok-mbstok-l?view=vs-2019
*STRING.H **memset():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/memset-wmemset?view=vs-2019
*STRING.H **strerror():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strerror-strerror-wcserror-wcserror?view=vs-2019
*STRING.H **strlen():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strlen-wcslen-mbslen-mbslen-l-mbstrlen-mbstrlen-l?view=vs-2019
*NOTE: All STRING.H functions are completely available in PEI and DXE,
except strcoll() and strxftm()*
All functions are tested in one single driver PEI/DXE:
https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/STRING_H/stringhfunctions/main.c#L52
7. *WCHAR.H **wprintf():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/printf-printf-l-wprintf-wprintf-l?view=vs-2019
*WCHAR.H **swprintf():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/sprintf-sprintf-l-swprintf-swprintf-l-swprintf-l?view=vs-2019**
*WCHAR.H **vswprintf():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/vsprintf-vsprintf-l-vswprintf-vswprintf-l-vswprintf-l?view=vs-2019
*WCHAR.H **wcscpy():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strcpy-wcscpy-mbscpy?view=vs-2019
*WCHAR.H **wcsncpy():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strncpy-strncpy-l-wcsncpy-wcsncpy-l-mbsncpy-mbsncpy-l?view=vs-2019
*WCHAR.H **wcscat():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strcat-wcscat-mbscat?view=vs-2019**
*WCHAR.H **wcsncat():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strncat-strncat-l-wcsncat-wcsncat-l-mbsncat-mbsncat-l?view=vs-2019
*WCHAR.H **wcscmp():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strcmp-wcscmp-mbscmp?view=vs-2019
*WCHAR.H **wcsncmp():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strncmp-wcsncmp-mbsncmp-mbsncmp-l?view=vs-2019
*WCHAR.H **wcschr():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strchr-wcschr-mbschr-mbschr-l?view=vs-2019
*WCHAR.H **wcscspn():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strcspn-wcscspn-mbscspn-mbscspn-l?view=vs-2019**
*WCHAR.H **wcspbrk():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strpbrk-wcspbrk-mbspbrk-mbspbrk-l?view=vs-2019**
*WCHAR.H **wcsrchr*():
https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strrchr-wcsrchr-mbsrchr-mbsrchr-l?view=vs-2019**
*WCHAR.H **wcsspn():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strspn-wcsspn-mbsspn-mbsspn-l?view=vs-2019**
*WCHAR.H **wcsstr():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strstr-wcsstr-mbsstr-mbsstr-l?view=vs-2019
*WCHAR.H **wcstok():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strtok-strtok-l-wcstok-wcstok-l-mbstok-mbstok-l?view=vs-2019
*WCHAR.H **wcslen():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strlen-wcslen-mbslen-mbslen-l-mbstrlen-mbstrlen-l?view=vs-2019
*WCHAR.H **wmemcmp():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/memcmp-wmemcmp?view=vs-2019**
*WCHAR.H **wmemcpy():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/memcpy-wmemcpy?view=vs-2019**
*WCHAR.H **wmemmove():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/memmove-wmemmove?view=vs-2019**
*WCHAR.H **wmemset():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/memset-wmemset?view=vs-2019
*NOTE: 21 WCHAR.H functions are available in PEI and DXE. 29 functions
are not yet implemented, that are file and multi byte functions*
All functions are tested in one single driver PEI/DXE:
https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/WCHAR_H/wcharhfunctions/main.c
<https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/WCHAR_H/wcharhfunctions/main.c#L52>
8. *STDIO.H**tmpnam():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/tempnam-wtempnam-tmpnam-wtmpnam?view=vs-2019**
*STDIO.H**printf():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/printf-printf-l-wprintf-wprintf-l?view=vs-2019
*STDIO.H**snprintf():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/snprintf-snprintf-snprintf-l-snwprintf-snwprintf-l?view=vs-2019**
*STDIO.H**sprintf():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/sprintf-sprintf-l-swprintf-swprintf-l-swprintf-l?view=vs-2019**
*STDIO.H**vsnprintf():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/vsnprintf-vsnprintf-vsnprintf-l-vsnwprintf-vsnwprintf-l?view=vs-2019**
*STDIO.H**vsscanf():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/vsscanf-vswscanf?view=vs-2019**
*STDIO.H**sscanf():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/sscanf-sscanf-l-swscanf-swscanf-l?view=vs-2019**
*STDIO.H**vprintf():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/vprintf-vprintf-l-vwprintf-vwprintf-l?view=vs-2019**
*STDIO.H**vsprintf():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/vsprintf-vsprintf-l-vswprintf-vswprintf-l-vswprintf-l?view=vs-2019**
*NOTE: 9 STDIO.H functions are available in PEI and DXE. 36 functions
are not implemented for POST drivers because of file I/O (it is
standard IO dot h)*
*NOTE: snprintf(), vsnprintf() and vsscanf() are C99 and implemented
due to their usefulness for security related software*
*NOTE: printf() and vprintf() write to ConOut that is actually not
visible in PEI and DXE, but in the Emulator.*
All functions are tested in one single driver PEI/DXE:
https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/STDIO_H/stdiohfunctions/main.c
9. *STDLIB.H atoi():
**https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/atoi-atoi-l-wtoi-wtoi-l?view=vs-2019***
*STDLIB.H atol():
**https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/atol-atol-l-wtol-wtol-l?view=vs-2019***
*STDLIB.H strtol():
**https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strtol-wcstol-strtol-l-wcstol-l?view=vs-2019***
*STDLIB.H strtoul():
**https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strtoul-strtoul-l-wcstoul-wcstoul-l?view=vs-2019***
*STDLIB.H rand():
**https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/rand?view=vs-2019***
*STDLIB.H srand():
**https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/srand?view=vs-2019***
*STDLIB.H calloc():
**https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/calloc?view=vs-2019***
*STDLIB.H free():
**https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/free?view=vs-2019***
*STDLIB.H malloc():
**https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/malloc?view=vs-2019***
*STDLIB.H realloc():
**https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/realloc?view=vs-2019***
*STDLIB.H atexit():
**https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/atexit?view=vs-2019***
*STDLIB.H exit():
**https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/exit-exit-exit?view=vs-2019***
*STDLIB.H qsort():
**https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/qsort?view=vs-2019***
*STDLIB.H abs():
**https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/abs-labs-llabs-abs64?view=vs-2019***
*STDLIB.H labs():
**https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/abs-labs-llabs-abs64?view=vs-2019***
*STDLIB.H div():
**https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/div?view=vs-2019***
*STDLIB.H ldiv():
**https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/div?view=vs-2019***
*NOTE: missing from STDLIB.H: abort(), strtod(), atof(), getenv(),
system(), bsearch()*
All functions are tested in one single driver PEI/DXE:
https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/STDLIB_H/stdlibhfunctions/main.c
10. *CTYPE.**H isalnum()**:
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/isalnum-iswalnum-isalnum-l-iswalnum-l?view=vs-2019
*CTYPE.H **isalpha()**:
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/isalpha-iswalpha-isalpha-l-iswalpha-l?view=vs-2019
*CTYPE.H **iscntrl()**:
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/iscntrl-iswcntrl-iscntrl-l-iswcntrl-l?view=vs-2019
*CTYPE.H **isdigit()**:
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/isdigit-iswdigit-isdigit-l-iswdigit-l?view=vs-2019
*CTYPE.H **isgraph()**:
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/isgraph-iswgraph-isgraph-l-iswgraph-l?view=vs-2019
*CTYPE.H **islower()**:
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/islower-iswlower-islower-l-iswlower-l?view=vs-2019
*CTYPE.H **isprint()**:
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/isprint-iswprint-isprint-l-iswprint-l?view=vs-2019
*CTYPE.H **ispunct()**:
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/ispunct-iswpunct-ispunct-l-iswpunct-l?view=vs-2019
*CTYPE.H **isspace()**:
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/isspace-iswspace-isspace-l-iswspace-l?view=vs-2019
*CTYPE.H **isupper()**:
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/isupper-isupper-l-iswupper-iswupper-l?view=vs-2019
*CTYPE.H **isxdigit()**:
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/isxdigit-iswxdigit-isxdigit-l-iswxdigit-l?view=vs-2019
*CTYPE.H **tolower()**:
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/tolower-tolower-towlower-tolower-l-towlower-l?view=vs-2019
*CTYPE.H **toupper()**:
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/toupper-toupper-towupper-toupper-l-towupper-l?view=vs-2019
*NOTE: C locale support only*
All functions are tested in one single driver PEI/DXE:
<https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/STDLIB_H/stdlibhfunctions/main.c>https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/CTYPE_H/ctypehfunctions/main.c
11. *WCTYPE.H **iswalnum()**:
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/isalnum-iswalnum-isalnum-l-iswalnum-l?view=vs-2019
*WCTYPE.H **iswalpha():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/isalpha-iswalpha-isalpha-l-iswalpha-l?view=vs-2019
*WCTYPE.H **iswblank():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/isblank-iswblank-isblank-l-iswblank-l?view=vs-2019
*WCTYPE.H **iswcntrl():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/iscntrl-iswcntrl-iscntrl-l-iswcntrl-l?view=vs-2019
*WCTYPE.H **iswdigit():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/isdigit-iswdigit-isdigit-l-iswdigit-l?view=vs-2019
*WCTYPE.H **iswgraph():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/isgraph-iswgraph-isgraph-l-iswgraph-l?view=vs-2019
*WCTYPE.H **iswlower():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/islower-iswlower-islower-l-iswlower-l?view=vs-2019
*WCTYPE.H **iswprint():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/isprint-iswprint-isprint-l-iswprint-l?view=vs-2019
*WCTYPE.H **iswpunct():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/ispunct-iswpunct-ispunct-l-iswpunct-l?view=vs-2019
*WCTYPE.H **iswspace():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/isspace-iswspace-isspace-l-iswspace-l?view=vs-2019
*WCTYPE.H **iswupper():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/isupper-isupper-l-iswupper-iswupper-l?view=vs-2019
*WCTYPE.H **iswxdigit():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/isxdigit-iswxdigit-isxdigit-l-iswxdigit-l?view=vs-2019
*WCTYPE.H **iswctype():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/isctype-iswctype-isctype-l-iswctype-l?view=vs-2019
*WCTYPE.H **wctype():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/wctype?view=vs-2019
*WCTYPE.H **towlower():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/tolower-tolower-towlower-tolower-l-towlower-l?view=vs-2019
*WCTYPE.H **towupper():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/toupper-toupper-towupper-toupper-l-towupper-l?view=vs-2019
*WCTYPE.H **towctrans():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/towctrans?view=vs-2019
*WCTYPE.H **wctrans():
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/wctrans?view=vs-2019
*NOTE: C locale support only*
All functions are tested in one single driver PEI/DXE:
<https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/STDLIB_H/stdlibhfunctions/main.c>https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/WCTYPE_H/wctypehfunctions/main.c
12. *NEW ASSERT.**H _wassert()**:
*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/assert-macro-assert-wassert?view=vs-2019
*NOTE: assert() does NOT run into dead loop.*
All functions are tested in one single driver PEI/DXE:
<https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/STDLIB_H/stdlibhfunctions/main.c>https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/ASSERT_H/asserthfunctions/main.c
<https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/ASSERT_H/asserthfunctions/main.c#L52>**
13. *NEW LOCALE.**H localeconv()**:*
https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/localeconv?view=vs-2019
*NEW LOCALE.**H
setlocale()**:*https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/setlocale-wsetlocale?view=vs-2019
*NOTE: locale functions are provided for compatibility. Only “C”
locale is supported only.*
All functions are tested in one single driver PEI/DXE:
https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/LOCALE_H/localehfunctions/main.c
<https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/LOCALE_H/localehfunctions/main.c#L52>
Best Regards,
Kilian
*From: *Kilian Kegel <mailto:kilian_ke...@outlook.com>
*Sent: *Wednesday, October 23, 2019 10:03 PM
*To: *devel@edk2.groups.io <mailto:devel@edk2.groups.io>
*Cc: *Kinney, Michael D <mailto:michael.d.kin...@intel.com>;
Richardson, Brian <mailto:brian.richard...@intel.com>
*Subject: *[edk2-devel] [staging/branch]: CdePkg - C Development
Environment Package
Hi UEFI community,
I’d like to introduce the CdePkg to edk2-staging.
Some time ago I decided to write my own ANSI C Library for UEFI Shell
and POST.
The UEFI Shell library (“Torito C Library”) has been production-ready
for more than one year.
The POST version of the library (“CdeLib”) is not yet fully tested.
I will be demonstrating my verification procedure in the upcoming
weeks on EDK2 STAGING
https://github.com/tianocore/edk2-staging/tree/CdePkg
Currently there are 3 examples implemented:
14. *argvc:
*https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/HOSTED_ENV/argcv/main.c#L57*//*
argc/argv handling according to
https://msdn.microsoft.com/en-us/library/a1y7w461.aspx
<https://msdn.microsoft.com/en-us/library/a1y7w461.aspx>
15. *systeminterfacePEI*:
https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/SYSTEM_IF/systeminterfacePEI/main.c#L57
demonstration, how *PeiServices*and *FileHandle*are passed into *main()*
16. *systeminterfaceDXE*:
https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/SYSTEM_IF/systeminterfaceDXE/main.c#L57
demonstration, how *SystemTable*and *ImageHandle*are passed into *main()*
**
Upcoming next demonstration will be the *clock()*function end of this week
The idea is to bring the ANSI C Library interface into POST drivers.
This will:
1. ease porting tasks
2. allow cross development
3. allow developers to focus on their aims, because they aren’t
forced to keep in mind a lot of additional info (e.g. *RShiftU64*)
4. provide all intrisics to allow the compiler to be a “C compiler”
(e.g. *char buffer[256] = { 1*};)
What is CdePkg and Torito C Library?
* CdePkg and Torito C Library are a /one man show / after work
party/, that is owned and written solely by myself
* CdePkg is a reference implementation only for Microsoft C compiler
* CdePkg is a feasibility study
* CdePkg is the successor of Torito C, based on the same source code
* CdePkg C Development Environment is similar to MdePkg Module
Development Environment
but guarantees that the C compiler is always fully usable (all
intrinsics available) and the C90/C95 standard library is always available
What are the design goals?
* to rewrite the whole thing from scratch, without using any public
source code from GNU, BSD, Watcom
* completeness: full blown C90 + C95 support, as lowest common
denominator
* tailored for UEFI: small code size, for UEFI-POST-driver uses a
C-Library-Driver, that contains core/worker functions for
*realloc()* == *malloc()*and*free()*,
entire*printf()*-family, entire*scanf()*-family.
UEFI-POST-driver just uses small wrapper functions to run the
C-Library-Driver code.
* stable, exact, chipset independent TSC based *clock()*
with*CLOCKS_PER_SEC* == 1000
* complete set of the Microsoft C-compiler intrinsic functions
* ROM-able! Runs with stack but w/o any static storage duration in
.data segment, e.g. for *rand(), strtok(), tmpfile()***
This is required for early PEI before memory sizing, when PEI-images
run directly out of flash
* Microsoft (bug) compatible (as far as possible)
1. use original Microsoft header files for UEFI Shell Apps
created in VS2019
2. allow expensive debugging tasks of ANSI C .EFI applications in
Visual Studio in its Windows NT counter part
3. to save my lifetime writing a documentation
https://github.com/tianocore/edk2-staging/tree/CdePkg/implemented.md#validation-status
* all the above in one single C-Library CdeLib.lib
*CdePkg*shall be adjusted to other compilers/tool chains too, once it
is feature-complete and accepted by the UEFI community.
As long as it is for Microsoft VS2019 only.
**
*CdePkg*README.md is here:
<https://github.com/MinnowWare/CdePkg#cdepkg>
https://github.com/tianocore/edk2-staging/tree/CdePkg#cdepkg
*CdePkg* HOWTO is here:
https://github.com/tianocore/edk2-staging/blob/CdePkg/README.md#howto
*CdeValidationPkg*README.md is here:
https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/README.md
<https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/README.md#cdevalidationpkg>
*CdeValidationPkg* HOWTO is here:
https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/README.md
<https://github.com/tianocore/edk2-staging/blob/CdePkg/CdeValidationPkg/README.md#howto>
HOWTO:
1. clone the *edk2-staging* repository
2. checkout *CdePkg*
3. run *LAUNCH.BAT*
4. run |*build -p EmulatorPkg\EmulatorPkg.dsc -t VS2015x86 -a IA32*|||
5. |run*DBGEMU.BAT *to start emulation*(EmulatorPkg)*|
6. |run*build -a IA32 -a X64 -n 5 -t VS2015x86 -b DEBUG -p
Vlv2TbltDevicePkg\PlatformPkgX64.dsc*||**|
7. |update MinnowBoard
with*Build/Vlv2TbltDevicePkgX64\DEBUG_VS2015x86\FV\VLV.fd*|
|**|
|Best regards,|
|Kilian Kegel|
