diff options
author | 2015-08-28 09:58:54 +0800 | |
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committer | 2015-09-01 12:44:00 +0800 | |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/ipxe/src/libgcc | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/ipxe/src/libgcc')
-rw-r--r-- | qemu/roms/ipxe/src/libgcc/__divdi3.c | 26 | ||||
-rw-r--r-- | qemu/roms/ipxe/src/libgcc/__moddi3.c | 26 | ||||
-rw-r--r-- | qemu/roms/ipxe/src/libgcc/__udivdi3.c | 10 | ||||
-rw-r--r-- | qemu/roms/ipxe/src/libgcc/__udivmoddi4.c | 32 | ||||
-rw-r--r-- | qemu/roms/ipxe/src/libgcc/__umoddi3.c | 13 | ||||
-rw-r--r-- | qemu/roms/ipxe/src/libgcc/icc.c | 8 | ||||
-rw-r--r-- | qemu/roms/ipxe/src/libgcc/libgcc.h | 14 | ||||
-rw-r--r-- | qemu/roms/ipxe/src/libgcc/memcpy.c | 18 |
8 files changed, 147 insertions, 0 deletions
diff --git a/qemu/roms/ipxe/src/libgcc/__divdi3.c b/qemu/roms/ipxe/src/libgcc/__divdi3.c new file mode 100644 index 000000000..7097b11e1 --- /dev/null +++ b/qemu/roms/ipxe/src/libgcc/__divdi3.c @@ -0,0 +1,26 @@ +/* + * arch/i386/libgcc/__divdi3.c + */ + +#include "libgcc.h" + +__libgcc int64_t __divdi3(int64_t num, int64_t den) +{ + int minus = 0; + int64_t v; + + if ( num < 0 ) { + num = -num; + minus = 1; + } + if ( den < 0 ) { + den = -den; + minus ^= 1; + } + + v = __udivmoddi4(num, den, NULL); + if ( minus ) + v = -v; + + return v; +} diff --git a/qemu/roms/ipxe/src/libgcc/__moddi3.c b/qemu/roms/ipxe/src/libgcc/__moddi3.c new file mode 100644 index 000000000..d671bbc4d --- /dev/null +++ b/qemu/roms/ipxe/src/libgcc/__moddi3.c @@ -0,0 +1,26 @@ +/* + * arch/i386/libgcc/__moddi3.c + */ + +#include "libgcc.h" + +__libgcc int64_t __moddi3(int64_t num, int64_t den) +{ + int minus = 0; + int64_t v; + + if ( num < 0 ) { + num = -num; + minus = 1; + } + if ( den < 0 ) { + den = -den; + minus ^= 1; + } + + (void) __udivmoddi4(num, den, (uint64_t *)&v); + if ( minus ) + v = -v; + + return v; +} diff --git a/qemu/roms/ipxe/src/libgcc/__udivdi3.c b/qemu/roms/ipxe/src/libgcc/__udivdi3.c new file mode 100644 index 000000000..f5a14de20 --- /dev/null +++ b/qemu/roms/ipxe/src/libgcc/__udivdi3.c @@ -0,0 +1,10 @@ +/* + * arch/i386/libgcc/__divdi3.c + */ + +#include "libgcc.h" + +__libgcc uint64_t __udivdi3(uint64_t num, uint64_t den) +{ + return __udivmoddi4(num, den, NULL); +} diff --git a/qemu/roms/ipxe/src/libgcc/__udivmoddi4.c b/qemu/roms/ipxe/src/libgcc/__udivmoddi4.c new file mode 100644 index 000000000..21e0d51f9 --- /dev/null +++ b/qemu/roms/ipxe/src/libgcc/__udivmoddi4.c @@ -0,0 +1,32 @@ +#include "libgcc.h" + +__libgcc uint64_t __udivmoddi4(uint64_t num, uint64_t den, uint64_t *rem_p) +{ + uint64_t quot = 0, qbit = 1; + + if ( den == 0 ) { + return 1/((unsigned)den); /* Intentional divide by zero, without + triggering a compiler warning which + would abort the build */ + } + + /* Left-justify denominator and count shift */ + while ( (int64_t)den >= 0 ) { + den <<= 1; + qbit <<= 1; + } + + while ( qbit ) { + if ( den <= num ) { + num -= den; + quot += qbit; + } + den >>= 1; + qbit >>= 1; + } + + if ( rem_p ) + *rem_p = num; + + return quot; +} diff --git a/qemu/roms/ipxe/src/libgcc/__umoddi3.c b/qemu/roms/ipxe/src/libgcc/__umoddi3.c new file mode 100644 index 000000000..fb4da991c --- /dev/null +++ b/qemu/roms/ipxe/src/libgcc/__umoddi3.c @@ -0,0 +1,13 @@ +/* + * arch/i386/libgcc/__umoddi3.c + */ + +#include "libgcc.h" + +__libgcc uint64_t __umoddi3(uint64_t num, uint64_t den) +{ + uint64_t v; + + (void) __udivmoddi4(num, den, &v); + return v; +} diff --git a/qemu/roms/ipxe/src/libgcc/icc.c b/qemu/roms/ipxe/src/libgcc/icc.c new file mode 100644 index 000000000..2f7f605c2 --- /dev/null +++ b/qemu/roms/ipxe/src/libgcc/icc.c @@ -0,0 +1,8 @@ +/* + * Intel's compiler creates an implicit call to this function at the + * start of main(). + * + */ +void __libgcc __intel_new_proc_init ( void ) { + /* Do nothing */ +} diff --git a/qemu/roms/ipxe/src/libgcc/libgcc.h b/qemu/roms/ipxe/src/libgcc/libgcc.h new file mode 100644 index 000000000..d3e9bdd73 --- /dev/null +++ b/qemu/roms/ipxe/src/libgcc/libgcc.h @@ -0,0 +1,14 @@ +#ifndef _LIBGCC_H +#define _LIBGCC_H + +#include <stdint.h> +#include <stddef.h> + +extern __libgcc uint64_t __udivmoddi4 ( uint64_t num, uint64_t den, + uint64_t *rem ); +extern __libgcc uint64_t __udivdi3 (uint64_t num, uint64_t den ); +extern __libgcc uint64_t __umoddi3 ( uint64_t num, uint64_t den ); +extern __libgcc int64_t __divdi3 ( int64_t num, int64_t den ); +extern __libgcc int64_t __moddi3 ( int64_t num, int64_t den ); + +#endif /* _LIBGCC_H */ diff --git a/qemu/roms/ipxe/src/libgcc/memcpy.c b/qemu/roms/ipxe/src/libgcc/memcpy.c new file mode 100644 index 000000000..e98b78384 --- /dev/null +++ b/qemu/roms/ipxe/src/libgcc/memcpy.c @@ -0,0 +1,18 @@ +/** @file + * + * gcc sometimes likes to insert implicit calls to memcpy(). + * Unfortunately, there doesn't seem to be any way to prevent it from + * doing this, or to force it to use the optimised memcpy() as seen by + * C code; it insists on inserting a symbol reference to "memcpy". We + * therefore include wrapper functions just to keep gcc happy. + * + */ + +#include <string.h> + +void * gcc_implicit_memcpy ( void *dest, const void *src, + size_t len ) asm ( "memcpy" ); + +void * gcc_implicit_memcpy ( void *dest, const void *src, size_t len ) { + return memcpy ( dest, src, len ); +} |