litmus-rt.git - The LITMUS^RT kernel.

The LITMUS^RT kernel.

Bjoern Brandenburg

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author	Glenn Elliott <gelliott@cs.unc.edu>	2012-04-13 16:18:03 -0400
committer	Glenn Elliott <gelliott@cs.unc.edu>	2012-04-13 16:18:03 -0400
commit	c0667dc4894e913048cf8904f0ce9a79b481b556 (patch)
tree	1803f6f9a6de45c949f57d1172aab4aa2546393b /arch/arm/mm/cache-v7.S
parent	8eb55f8fa1a2c3854f0f77b9b8663178c0129f6c (diff)

Move RSM and IKGLP imp. to own .c fileswip-ikglp

Also reformated code to be slightly more standard coding practice compliant.

Diffstat (limited to 'arch/arm/mm/cache-v7.S')

0 files changed, 0 insertions, 0 deletions

e.h> #include <asm/context.S> /* void *strncpy(char *dest, const char *src, size_t n); * R0 = address (dest) * R1 = address (src) * R2 = size * Returns a pointer (R0) to the destination string dest * we do this by not changing R0 */ #ifdef CONFIG_STRNCPY_L1 .section .l1.text #else .text #endif .align 2 ENTRY(_strncpy) CC = R2 == 0; if CC JUMP 6f; P2 = R2 ; /* size */ P0 = R0 ; /* dst*/ P1 = R1 ; /* src*/ LSETUP (1f, 2f) LC0 = P2; 1: R1 = B [P1++] (Z); B [P0++] = R1; CC = R1 == 0; 2: if CC jump 3f; RTS; /* if src is shorter than n, we need to null pad bytes in dest * but, we can get here when the last byte is zero, and we don't * want to copy an extra byte at the end, so we need to check */ 3: R2 = LC0; CC = R2 if ! CC jump 6f; /* if the required null padded portion is small, do it here, rather than * handling the overhead of memset (which is OK when things are big). */ R3 = 0x20; CC = R2 < R3; IF CC jump 4f; R2 += -1; /* Set things up for memset * R0 = address * R1 = filler byte (this case it's zero, set above) * R2 = count (set above) */ I1 = R0; R0 = RETS; I0 = R0; R0 = P0; pseudo_long_call _memset, p0; R0 = I0; RETS = R0; R0 = I1; RTS; 4: LSETUP(5f, 5f) LC0; 5: B [P0++] = R1; 6: RTS; ENDPROC(_strncpy)


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