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| author | Igor Venevtsev <igor.venevtsev@gmail.com> | 2016-03-31 12:12:00 +0300 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2016-04-04 17:32:07 +0300 |
| commit | 5d3ad3b123b7c121d7a6eac27fb13016171e27bc (patch) | |
| tree | 1addf58b9430f0d224f6775dc90dd36b6d1e62b8 /newlib/configure.host | |
| parent | 44b72b43d6e867408a1ce6bc7df6d60a5c968183 (diff) | |
Add Intel MCU target
Intel MCU System V ABI are incompartible with i386 System V ABI:
o Minimum instruction set is Intel Pentium ISA minus x87 instructions
o No x87 or vector registers
o First three args are passed in %eax, %edx and %ecx
o Full specification available here:
https://github.com/hjl-tools/x86-psABI/wiki/iamcu-psABI-0.7.pdf
newlib/
* configure.host: Add new ix86-*-elfiamcu target
newlib/libc/include/
* setjmp.h: Change _JBLEN for Intel MCU target
newlib/libc/machine/i386/
* memchr.S: (memchr) Target-specific size-optimized version
* memcmp.S: (memcmp) Likewise
* memcpy.S: (memcpy) Likewise
* memmove.S: (memmove) Likewise
* memset.S: (memset) Likewise
* setjmp.S: (setjmp) Likewise
* strchr.S: (strchr) Likewise
* strlen.S: (strlen) Likewise
newlib/libc/stdlib/
* srtold.c: (__flt_rounds) Disable for Intel MCU
Diffstat (limited to 'newlib/configure.host')
| -rw-r--r-- | newlib/configure.host | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/newlib/configure.host b/newlib/configure.host index 8b0846e43..bb163ecc3 100644 --- a/newlib/configure.host +++ b/newlib/configure.host @@ -696,6 +696,15 @@ case "${host}" in i[34567]86-*-netware*) newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES -DNO_EXEC -DABORT_PROVIDED -DCLOCK_PROVIDED -DMALLOC_PROVIDED -DHAVE_FCNTL" ;; + i[3-7]86-*-elfiamcu) + newlib_cflags="${newlib_cflags} -Os -DPREFER_SIZE_OVER_SPEED -ffunction-sections -fomit-frame-pointer -DREENTRANT_SYSCALL_PROVIDED" + if [ "${newlib_multithread}" = "no" ] ; then + newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES" + else + syscall_dir=syscalls + newlib_cflags="${newlib_cflags} -D__DYNAMIC_REENT__" + fi + ;; iq2000*) syscall_dir=syscalls default_newlib_io_long_long="yes" |