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4 Commits

Author SHA1 Message Date
yury
2dafb8d674 * arm-android: Use kuser_memory_barrier by default. 
git-svn-id: trunk@32077 -
 2015-10-17 16:07:04 +00:00
yury
0d9d730efe * arm-android: Use kuser_cmpxchg for Interlocked* functions when RTL is compiled for the ARMv5t CPU. 
git-svn-id: trunk@32072 -
 2015-10-17 14:38:17 +00:00
florian
e6efbd36ad * compiler defined cpuflags instead of creating them during system unit compilation 
git-svn-id: trunk@22091 -
 2012-08-15 15:49:11 +00:00
tom_at_work
f252fd369e Tried to reorganize the ARM define mess in rtl/arm/arm.inc. Instead of requiring to enumerate all possible ARM variants each time a CPU feature is used, add a define of the format CPUARM_HAS_XXX and use that. Note that a better solution would be to properly implement the compiler cpuinfo infrastructure, however that is much more work. 
+ CPUARM_HAS_BX is defined if the CPU supports the BX* instruction
  + CPUARM_HAS_REV is defined if the CPU supports the REV instruction. Note that you still have to check for compiler versions > 2.6.0 since the assembler reader of 2.6.0 does not understand that instruction.
  + CPUARM_HAS_IDIV is defined if the CPU supports the sdiv, udiv instructions. Use of this fixes a bug where previously these instruction were only used for armv7-m, while cortex3m cpus also support it.
  + CPUARM_HAS_LDREX is defined if the CPU supports the ldrex/strex instructions. Use of this fixes a bug with armv7(-a) cpus where this path has not been used.
  + SYSTEM_HAS_KUSER_CMPXCHG is defined if the system (mainly OS) support the kuser_cmpxchg functions. Use of this fixes a bug where ARMHF systems did not use it for synchronization (although ARMHF is armv7+ only, i.e. the LDREX path is used anyway)

git-svn-id: trunk@22081 -
 2012-08-14 19:45:03 +00:00