Defined in 2 files as a macro:

• include/asm-mips/regdef.h, line 40 (as a macro)
• include/asm-mips64/regdef.h, line 41 (as a macro)

Referenced in 3 files:

• include/asm-alpha/unistd.h, line 467
• include/asm-arm/sembuf.h, line 911
• include/asm-ppc/board.h, line 607