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- #ifndef __ARM_FEATURES_H__
- #define __ARM_FEATURES_H__
- #if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) \
- || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) \
- || defined(__ARM_ARCH_7EM__)
- #define HAVE_ARMV7
- #define HAVE_ARMV6
- #define HAVE_ARMV5
- #elif defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) \
- || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) \
- || defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6T2__)
- #define HAVE_ARMV6
- #define HAVE_ARMV5
- #elif defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5E__) \
- || defined(__ARM_ARCH_5T__) || defined(__ARM_ARCH_5TE__) || defined(__ARM_ARCH_5TEJ__)
- #define HAVE_ARMV5
- #endif
- /* no need for HAVE_NEON - GCC defines __ARM_NEON__ consistently */
- /* global function/external symbol */
- #ifndef __MACH__
- #define ESYM(name) name
- #define FUNCTION(name) \
- .globl name; \
- .type name, %function; \
- name
- #define EXTRA_UNSAVED_REGS
- #else
- #define ESYM(name) _##name
- #define FUNCTION(name) \
- .globl ESYM(name); \
- name: \
- ESYM(name)
- // r7 is preserved, but add it for EABI alignment..
- #define EXTRA_UNSAVED_REGS r7, r9,
- #endif
- // indexed branch (XB) via branch table (BT)
- #ifdef __PIC__
- #define PIC_XB(c,r,s) add##c pc, r, s
- #define PIC_BT(a) b a
- #else
- #define PIC_XB(c,r,s) ldr##c pc, [pc, r, s]
- #define PIC_BT(a) .word a
- #endif
- // load data address (LDR) either via literal pool or via GOT
- #ifdef __PIC__
- // can't use pool loads since ldr= only allows a symbol or a constant expr :-(
- #define PIC_LDR_INIT() \
- .macro pic_ldr r t a; \
- ldr \r, [pc, $.LD\@-.-8]; \
- ldr \t, [pc, $.LD\@-.-4]; \
- .LP\@:add \r, pc; \
- ldr \r, [\r, \t]; \
- add pc, $4; \
- .LD\@:.word _GLOBAL_OFFSET_TABLE_-.LP\@-8; \
- .word \a(GOT); \
- .endm;
- #define PIC_LDR(r,t,a) pic_ldr r, t, a
- #else
- #define PIC_LDR_INIT()
- #define PIC_LDR(r,t,a) ldr r, =a
- #endif
- #endif /* __ARM_FEATURES_H__ */
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