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#include "platform_config.h"
#define IS_MACH (defined(__MACH__))
#if !defined(HAVE_SLASHMACRO) && !defined(HAVE_DOLLARMACRO)
#error Unknown gnu as macro parameter convention! Run ./configure
#endif
#if (IS_MACH)
.macro FN name
#if defined(HAVE_SLASHMACRO)
\name:
_\name:
#elif defined(HAVE_DOLLARMACRO)
$0:
_$0:
#endif
.endm
.macro FN_EXT name, args, xmmused
#if defined(HAVE_SLASHMACRO)
FN \name
#elif defined(HAVE_DOLLARMACRO)
FN $0
#endif
.endm
.macro FN_END name
.endm
.macro HIDDEN name
#if defined(HAVE_AS_PRIVATE_EXTERN)
#if defined(HAVE_SLASHMACRO)
.private_extern \name
.private_extern _\name
#elif defined(HAVE_DOLLARMACRO)
.private_extern $0
.private_extern _$0
#endif
#endif
.endm
#else
.macro FN name
\name:
_\name:
.endm
.macro FN_EXT name, args, xmmused
FN \name
.endm
.macro FN_END name
.size \name, .-\name
.size _\name, .-_\name
.type \name, @function
.type _\name, @function
.endm
.macro HIDDEN name
#if defined(HAVE_AS_HIDDEN)
.hidden \name
.hidden _\name
#endif
.endm
/* set NX for stack */
.section .note.GNU-stack,"",@progbits
#endif
#if (IS_MACH)
.macro SECTION_TEXT
.section __TEXT,__text,regular
.endm
.macro SECTION_RODATA
.section __TEXT,__text,regular
.endm
#else
/* put everything in the code segment to simplify things */
.macro SECTION_TEXT
.text
.endm
.macro SECTION_RODATA
.text
.endm
#endif
/* declare a global function */
.macro GLOBAL name
#if defined(HAVE_SLASHMACRO)
.globl \name
.globl _\name
#elif defined(HAVE_DOLLARMACRO)
.globl $0
.globl _$0
#endif
.endm
.macro FN_LOCAL_PREFIX name
#if defined(HAVE_SLASHMACRO)
FN LOCAL_PREFIX(\name)
#elif defined(HAVE_DOLLARMACRO)
FN LOCAL_PREFIX($0)
#endif
.endm
.macro FN_EXT_LOCAL_PREFIX name, args, xmmused
#if defined(HAVE_SLASHMACRO)
FN_EXT LOCAL_PREFIX(\name), \args, \xmmused
#elif defined(HAVE_DOLLARMACRO)
FN_EXT LOCAL_PREFIX($0), $1, $2
#endif
.endm
.macro FN_END_LOCAL_PREFIX name
#if defined(HAVE_SLASHMACRO)
FN_END LOCAL_PREFIX(\name)
#elif defined(HAVE_DOLLARMACRO)
FN_END LOCAL_PREFIX($0)
#endif
.endm
.macro GLOBAL_LOCAL_PREFIX name
#if defined(HAVE_SLASHMACRO)
GLOBAL LOCAL_PREFIX(\name)
HIDDEN LOCAL_PREFIX(\name)
#elif defined(HAVE_DOLLARMACRO)
GLOBAL LOCAL_PREFIX($0)
HIDDEN LOCAL_PREFIX($0)
#endif
.endm
.macro GLOBAL_HIDDEN_FN name
#if defined(HAVE_SLASHMACRO)
GLOBAL \name
HIDDEN \name
FN \name
#elif defined(HAVE_DOLLARMACRO)
GLOBAL $0
HIDDEN $0
FN $0
#endif
.endm
.macro GLOBAL_HIDDEN_FN_EXT name, args, xmmused
#if defined(HAVE_SLASHMACRO)
GLOBAL \name
HIDDEN \name
FN_EXT \name, \args, \xmmused
#elif defined(HAVE_DOLLARMACRO)
GLOBAL $0
HIDDEN $0
FN_EXT $0, $1, $2
#endif
.endm
/* pic support */
.macro LOAD_VAR_PIC var, reg
#if (IS_X86_32)
#if defined(HAVE_SLASHMACRO)
call 1f
1:
popl \reg
leal \var - 1b(\reg), \reg
#elif defined(HAVE_DOLLARMACRO)
call 1f
1:
popl $1
leal $0 - 1b($1), $1
#endif
#else
#if defined(HAVE_SLASHMACRO)
leaq \var(%rip), \reg
#elif defined(HAVE_DOLLARMACRO)
leaq $0(%rip), $1
#endif
#endif
.endm
SECTION_RODATA
.p2align 4,,15
chacha_constants:
.long 0x61707865,0x3320646e,0x79622d32,0x6b206574 /* "expand 32-byte k" */
.byte 2,3,0,1,6,7,4,5,10,11,8,9,14,15,12,13 /* pshufb rotate by 16 */
.byte 3,0,1,2,7,4,5,6,11,8,9,10,15,12,13,14 /* pshufb rotate by 8 */
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