~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/arch/arm/include/asm/jump_label.h

Version: ~ [ linux-5.14-rc3 ] ~ [ linux-5.13.5 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.53 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.135 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.198 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.240 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.276 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.276 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.18.140 ] ~ [ linux-3.16.85 ] ~ [ linux-3.14.79 ] ~ [ linux-3.12.74 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 #ifndef _ASM_ARM_JUMP_LABEL_H
  2 #define _ASM_ARM_JUMP_LABEL_H
  3 
  4 #ifndef __ASSEMBLY__
  5 
  6 #include <linux/types.h>
  7 #include <asm/unified.h>
  8 
  9 #define JUMP_LABEL_NOP_SIZE 4
 10 
 11 static __always_inline bool arch_static_branch(struct static_key *key, bool branch)
 12 {
 13         asm_volatile_goto("1:\n\t"
 14                  WASM(nop) "\n\t"
 15                  ".pushsection __jump_table,  \"aw\"\n\t"
 16                  ".word 1b, %l[l_yes], %c0\n\t"
 17                  ".popsection\n\t"
 18                  : :  "i" (&((char *)key)[branch]) :  : l_yes);
 19 
 20         return false;
 21 l_yes:
 22         return true;
 23 }
 24 
 25 static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch)
 26 {
 27         asm_volatile_goto("1:\n\t"
 28                  WASM(b) " %l[l_yes]\n\t"
 29                  ".pushsection __jump_table,  \"aw\"\n\t"
 30                  ".word 1b, %l[l_yes], %c0\n\t"
 31                  ".popsection\n\t"
 32                  : :  "i" (&((char *)key)[branch]) :  : l_yes);
 33 
 34         return false;
 35 l_yes:
 36         return true;
 37 }
 38 
 39 typedef u32 jump_label_t;
 40 
 41 struct jump_entry {
 42         jump_label_t code;
 43         jump_label_t target;
 44         jump_label_t key;
 45 };
 46 
 47 #endif  /* __ASSEMBLY__ */
 48 #endif
 49 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp