diff options
Diffstat (limited to 'recipes-core/newlib/newlib/iamcu-commit-5d3ad3b.patch')
| -rw-r--r-- | recipes-core/newlib/newlib/iamcu-commit-5d3ad3b.patch | 399 |
1 files changed, 0 insertions, 399 deletions
diff --git a/recipes-core/newlib/newlib/iamcu-commit-5d3ad3b.patch b/recipes-core/newlib/newlib/iamcu-commit-5d3ad3b.patch deleted file mode 100644 index f44aa07..0000000 --- a/recipes-core/newlib/newlib/iamcu-commit-5d3ad3b.patch +++ /dev/null @@ -1,399 +0,0 @@ -From 5d3ad3b123b7c121d7a6eac27fb13016171e27bc Mon Sep 17 00:00:00 2001 -From: Igor Venevtsev <igor.venevtsev@gmail.com> -Date: Thu, 31 Mar 2016 12:12:00 +0300 -Subject: 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 - -diff --git a/newlib/configure.host b/newlib/configure.host -index 8b0846e..bb163ec 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" -diff --git a/newlib/libc/include/machine/setjmp.h b/newlib/libc/include/machine/setjmp.h -index c08e682..2b4dd8b 100644 ---- a/newlib/libc/include/machine/setjmp.h -+++ b/newlib/libc/include/machine/setjmp.h -@@ -92,6 +92,9 @@ _BEGIN_STD_C - # define _JBLEN (13 * 4) - # elif defined(__unix__) || defined(__rtems__) - # define _JBLEN 9 -+# elif defined(__iamcu__) -+/* Intel MCU jmp_buf only covers callee-saved registers. */ -+# define _JBLEN 6 - # else - # include "setjmp-dj.h" - # endif -diff --git a/newlib/libc/machine/i386/memchr.S b/newlib/libc/machine/i386/memchr.S -index 7639685..d9b0bf2 100644 ---- a/newlib/libc/machine/i386/memchr.S -+++ b/newlib/libc/machine/i386/memchr.S -@@ -14,13 +14,33 @@ - SOTYPE_FUNCTION(memchr) - - SYM (memchr): -+#ifdef __iamcu__ -+ pushl edi -+ movl eax,edi -+ movl edx,eax -+ xorl edx,edx -+ testl ecx,ecx -+ jz L20 -+ -+ repnz -+ scasb -+ -+ setnz dl -+ decl edi -+ -+ decl edx -+ andl edi,edx -+L20: -+ movl edx,eax -+ -+ popl edi -+#else - pushl ebp - movl esp,ebp - pushl edi - movzbl 12(ebp),eax - movl 16(ebp),ecx - movl 8(ebp),edi -- - xorl edx,edx - testl ecx,ecx - jz L20 -@@ -111,4 +131,5 @@ L20: - leal -4(ebp),esp - popl edi - leave -+#endif - ret -diff --git a/newlib/libc/machine/i386/memcmp.S b/newlib/libc/machine/i386/memcmp.S -index 26b8ef1..4a01b82 100644 ---- a/newlib/libc/machine/i386/memcmp.S -+++ b/newlib/libc/machine/i386/memcmp.S -@@ -15,6 +15,33 @@ - - SYM (memcmp): - -+#ifdef __iamcu__ -+ pushl edi -+ pushl esi -+ movl eax,edi -+ movl edx,esi -+ cld -+ -+/* check if length is zero in which case just return 0 */ -+ -+ xorl eax,eax -+ testl ecx,ecx -+ jz L4 -+ -+/* compare any unaligned bytes or remainder bytes */ -+ repz -+ cmpsb -+ -+/* set output to be < 0 if less than, 0 if equal, or > 0 if greater than */ -+ xorl edx,edx -+ movb -1(esi),dl -+ movb -1(edi),al -+ subl edx,eax -+ -+L4: -+ popl esi -+ popl edi -+#else - pushl ebp - movl esp,ebp - subl $16,esp -@@ -73,4 +100,5 @@ L4: - popl edi - popl ebx - leave -+#endif - ret -diff --git a/newlib/libc/machine/i386/memcpy.S b/newlib/libc/machine/i386/memcpy.S -index b53e2a1..a14aa2a 100644 ---- a/newlib/libc/machine/i386/memcpy.S -+++ b/newlib/libc/machine/i386/memcpy.S -@@ -15,6 +15,17 @@ - - SYM (memcpy): - -+#ifdef __iamcu__ -+ pushl esi -+ pushl edi -+ movl eax,edi -+ movl edx,esi -+ -+ rep movsb -+ -+ popl edi -+ popl esi -+#else - pushl ebp - movl esp,ebp - pushl esi -@@ -71,4 +82,5 @@ SYM (memcpy): - popl edi - popl esi - leave -+#endif - ret -diff --git a/newlib/libc/machine/i386/memmove.S b/newlib/libc/machine/i386/memmove.S -index 1ea2f6d..1026582 100644 ---- a/newlib/libc/machine/i386/memmove.S -+++ b/newlib/libc/machine/i386/memmove.S -@@ -15,6 +15,32 @@ - - SYM (memmove): - -+#ifdef __iamcu__ -+ pushl esi -+ pushl edi -+ movl eax,edi -+ movl edx,esi -+ cmp esi,edi -+ ja .Lcopy_backward -+ je .Lbwd_write_0bytes -+ -+ rep movsb -+ -+ popl edi -+ popl esi -+ ret -+ -+.Lcopy_backward: -+ lea -1(edi,ecx),edi -+ lea -1(esi,ecx),esi -+ std -+ rep movsb -+ cld -+ -+.Lbwd_write_0bytes: -+ popl edi -+ popl esi -+#else - pushl ebp - movl esp,ebp - pushl esi -@@ -143,4 +169,5 @@ SYM (memmove): - popl edi - popl esi - leave -+#endif - ret -diff --git a/newlib/libc/machine/i386/memset.S b/newlib/libc/machine/i386/memset.S -index 6eb2cd6..83b2556 100644 ---- a/newlib/libc/machine/i386/memset.S -+++ b/newlib/libc/machine/i386/memset.S -@@ -15,6 +15,15 @@ - - SYM (memset): - -+#ifdef __iamcu__ -+ pushl edi -+ movl eax,edi -+ movzbl dl,eax -+ mov edi,edx -+ rep stosb -+ mov edx,eax -+ popl edi -+#else - pushl ebp - movl esp,ebp - pushl edi -@@ -96,4 +105,5 @@ SYM (memset): - leal -4(ebp),esp - popl edi - leave -+#endif - ret -diff --git a/newlib/libc/machine/i386/setjmp.S b/newlib/libc/machine/i386/setjmp.S -index fd746e4..45c689f 100644 ---- a/newlib/libc/machine/i386/setjmp.S -+++ b/newlib/libc/machine/i386/setjmp.S -@@ -20,6 +20,10 @@ - ** jmp_buf: - ** eax ebx ecx edx esi edi ebp esp eip - ** 0 4 8 12 16 20 24 28 32 -+ ** -+ ** Intel MCU jmp_buf: -+ ** ebx esi edi ebp esp eip -+ ** 0 4 8 12 16 20 - */ - - #include "i386mach.h" -@@ -31,6 +35,23 @@ - - SYM (setjmp): - -+#ifdef __iamcu__ -+ /* Store EIP. */ -+ movl 0(esp),ecx -+ movl ecx,20(eax) -+ -+ movl ebx,0 (eax) -+ movl esi,4 (eax) -+ movl edi,8 (eax) -+ movl ebp,12(eax) -+ -+ /* Skip return address, which will be pushed onto stack in -+ longjmp, and store SP. */ -+ leal 4(esp),ecx -+ movl ecx,16(eax) -+ -+ xorl eax,eax -+#else - pushl ebp - movl esp,ebp - -@@ -59,9 +80,28 @@ SYM (setjmp): - popl edi - movl $0,eax - leave -+#endif - ret - - SYM (longjmp): -+#ifdef __iamcu__ -+ /* Check retval. */ -+ testl edx,edx -+ jne 0f -+ incl edx -+0: -+ /* Restore stack first. */ -+ movl 16(eax),esp -+ -+ /* Put return address on stack. */ -+ pushl 20(eax) -+ -+ movl 0(eax),ebx -+ movl 4(eax),esi -+ movl 8(eax),edi -+ movl 12(eax),ebp -+ movl edx,eax -+#else - pushl ebp - movl esp,ebp - -@@ -87,5 +127,6 @@ SYM (longjmp): - movl 16(edi),esi - movl 20(edi),edi - __STI -+#endif - - ret -diff --git a/newlib/libc/machine/i386/strchr.S b/newlib/libc/machine/i386/strchr.S -index 1d98b81..43ee0fb 100644 ---- a/newlib/libc/machine/i386/strchr.S -+++ b/newlib/libc/machine/i386/strchr.S -@@ -15,6 +15,29 @@ - - SYM (strchr): - -+#ifdef __iamcu__ -+ xorl ecx,ecx -+ movb dl,cl -+ -+/* loop while (*s && *s++ != c) */ -+ leal -1(eax),eax -+L15: -+ incl eax -+ movb (eax),dl -+ testb dl,dl -+ je L14 -+ cmpb cl,dl -+ jne L15 -+ -+L14: -+/* if (*s == c) return address otherwise return NULL */ -+ cmpb cl,(eax) -+ je L19 -+ xorl eax,eax -+ -+L19: -+ ret -+#else - pushl ebp - movl esp,ebp - pushl edi -@@ -170,3 +193,5 @@ L27: - jmp L9 - - #endif /* !__OPTIMIZE_SIZE__ */ -+ -+#endif /* __iamcu__ */ -diff --git a/newlib/libc/machine/i386/strlen.S b/newlib/libc/machine/i386/strlen.S -index 0e3cb64..373ea0f 100644 ---- a/newlib/libc/machine/i386/strlen.S -+++ b/newlib/libc/machine/i386/strlen.S -@@ -18,9 +18,13 @@ SYM (strlen): - pushl ebp - movl esp,ebp - pushl edi -+#ifdef __iamcu__ -+ movl eax,edx -+#else - movl 8(ebp),edx -+#endif - --#ifdef __OPTIMIZE_SIZE__ -+#if defined __OPTIMIZE_SIZE__ || defined __iamcu__ - cld - movl edx,edi - movl $4294967295,ecx -diff --git a/newlib/libc/stdlib/strtold.c b/newlib/libc/stdlib/strtold.c -index a6d415d..1128b74 100644 ---- a/newlib/libc/stdlib/strtold.c -+++ b/newlib/libc/stdlib/strtold.c -@@ -35,7 +35,8 @@ POSSIBILITY OF SUCH DAMAGE. - - #ifdef _HAVE_LONG_DOUBLE - --#if defined (__x86_64__) || defined (__i386__) -+/* Intel MCU has no x87 floating point unit */ -+#if (defined (__x86_64__) || defined (__i386__)) && !defined (__iamcu__) - static const int map[] = { - 1, /* round to nearest */ - 3, /* round to zero */ |