diff options
| author | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2015-04-18 22:41:46 +0200 |
|---|---|---|
| committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2015-04-22 20:00:24 +0200 |
| commit | e71fc570caec4f2d4bbe729dfe9eb41bfe5a732a (patch) | |
| tree | 3e9036c730288367ef489989e05b4452ca1116c8 /libc/sysdeps/linux/arm/bits | |
| parent | 298f58e073b2782bd264edea969769b7b5e7cf41 (diff) | |
arm: Add BX and BXC macros
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'libc/sysdeps/linux/arm/bits')
| -rw-r--r-- | libc/sysdeps/linux/arm/bits/arm_bx.h | 12 | ||||
| -rw-r--r-- | libc/sysdeps/linux/arm/bits/uClibc_arch_features.h | 26 |
2 files changed, 35 insertions, 3 deletions
diff --git a/libc/sysdeps/linux/arm/bits/arm_bx.h b/libc/sysdeps/linux/arm/bits/arm_bx.h index 321490e55..2c290896d 100644 --- a/libc/sysdeps/linux/arm/bits/arm_bx.h +++ b/libc/sysdeps/linux/arm/bits/arm_bx.h @@ -24,11 +24,17 @@ #endif /* features.h not yet included */ #if defined(__USE_BX__) -# if ( defined (__ARM_ARCH_2__) || defined (__ARM_ARCH_3__) \ - || defined (__ARM_ARCH_3M__) || defined (__ARM_ARCH_4__) \ - ) +# if (__ARM_ARCH <= 4 && !defined __ARM_ARCH_4T__) # error Use of BX was requested, but is not available on the target processor. # endif /* ARCH level */ #endif /* __USE_BX__ */ +#if defined(__USE_BX__) && (__ARM_ARCH > 4 || (__ARM_ARCH == 4 && defined __ARM_ARCH_4T__)) +# define BX(reg) bx reg +# define BXC(cond, reg) bx##cond reg +#else +# define BX(reg) mov pc, reg +# define BXC(cond, reg) mov##cond pc, reg +#endif + #endif /* _ARM_BX_H */ diff --git a/libc/sysdeps/linux/arm/bits/uClibc_arch_features.h b/libc/sysdeps/linux/arm/bits/uClibc_arch_features.h index b01d79c5c..e85aa52fe 100644 --- a/libc/sysdeps/linux/arm/bits/uClibc_arch_features.h +++ b/libc/sysdeps/linux/arm/bits/uClibc_arch_features.h @@ -48,6 +48,32 @@ /* only weird assemblers generally need this */ #undef __UCLIBC_ASM_LINE_SEP__ + +/* The __ARM_ARCH define is provided by gcc 4.8. Construct it otherwise. */ +#ifndef __ARM_ARCH +# ifdef __ARM_ARCH_2__ +# define __ARM_ARCH 2 +# elif defined (__ARM_ARCH_3__) || defined (__ARM_ARCH_3M__) +# define __ARM_ARCH 3 +# elif defined (__ARM_ARCH_4__) || defined (__ARM_ARCH_4T__) +# define __ARM_ARCH 4 +# elif defined (__ARM_ARCH_5__) || defined (__ARM_ARCH_5E__) \ + || defined(__ARM_ARCH_5T__) || defined(__ARM_ARCH_5TE__) \ + || defined(__ARM_ARCH_5TEJ__) +# define __ARM_ARCH 5 +# elif defined (__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) \ + || defined (__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) \ + || defined (__ARM_ARCH_6K__) || defined(__ARM_ARCH_6T2__) +# define __ARM_ARCH 6 +# elif defined (__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) \ + || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) \ + || defined(__ARM_ARCH_7EM__) +# define __ARM_ARCH 7 +# else +# error unknown arm architecture +# endif +#endif + #ifdef __GNUC__ # define __need_uClibc_config_h # include <bits/uClibc_config.h> |