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/**
* Copyright (C) ARM Limited 2010-2014. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
static void gator_buffer_write_packed_int(int cpu, int buftype, int x)
{
uint32_t write = per_cpu(gator_buffer_write, cpu)[buftype];
uint32_t mask = gator_buffer_mask[buftype];
char *buffer = per_cpu(gator_buffer, cpu)[buftype];
int packedBytes = 0;
int more = true;
while (more) {
/* low order 7 bits of x */
char b = x & 0x7f;
x >>= 7;
if ((x == 0 && (b & 0x40) == 0) || (x == -1 && (b & 0x40) != 0))
more = false;
else
b |= 0x80;
buffer[(write + packedBytes) & mask] = b;
packedBytes++;
}
per_cpu(gator_buffer_write, cpu)[buftype] = (write + packedBytes) & mask;
}
static void gator_buffer_write_packed_int64(int cpu, int buftype, long long x)
{
uint32_t write = per_cpu(gator_buffer_write, cpu)[buftype];
uint32_t mask = gator_buffer_mask[buftype];
char *buffer = per_cpu(gator_buffer, cpu)[buftype];
int packedBytes = 0;
int more = true;
while (more) {
/* low order 7 bits of x */
char b = x & 0x7f;
x >>= 7;
if ((x == 0 && (b & 0x40) == 0) || (x == -1 && (b & 0x40) != 0))
more = false;
else
b |= 0x80;
buffer[(write + packedBytes) & mask] = b;
packedBytes++;
}
per_cpu(gator_buffer_write, cpu)[buftype] = (write + packedBytes) & mask;
}
static void gator_buffer_write_bytes(int cpu, int buftype, const char *x, int len)
{
int i;
u32 write = per_cpu(gator_buffer_write, cpu)[buftype];
u32 mask = gator_buffer_mask[buftype];
char *buffer = per_cpu(gator_buffer, cpu)[buftype];
for (i = 0; i < len; i++) {
buffer[write] = x[i];
write = (write + 1) & mask;
}
per_cpu(gator_buffer_write, cpu)[buftype] = write;
}
static void gator_buffer_write_string(int cpu, int buftype, const char *x)
{
int len = strlen(x);
gator_buffer_write_packed_int(cpu, buftype, len);
gator_buffer_write_bytes(cpu, buftype, x, len);
}
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