0a6a1f1d05
This brings our tree to NetBSD 7.0, as found on -current on the 10-10-2015. This updates: - LLVM to 3.6.1 - GCC to GCC 5.1 - Replace minix/commands/zdump with usr.bin/zdump - external/bsd/libelf has moved to /external/bsd/elftoolchain/ - Import ctwm - Drop sprintf from libminc Change-Id: I149836ac18e9326be9353958bab9b266efb056f0
49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
/*===- InstrProfiling.c - Support library for PGO instrumentation ---------===*\
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|*
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|* The LLVM Compiler Infrastructure
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|*
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|* This file is distributed under the University of Illinois Open Source
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|* License. See LICENSE.TXT for details.
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|*
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\*===----------------------------------------------------------------------===*/
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#include "InstrProfiling.h"
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#include <string.h>
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__attribute__((visibility("hidden")))
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uint64_t __llvm_profile_get_magic(void) {
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/* Magic number to detect file format and endianness.
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*
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* Use 255 at one end, since no UTF-8 file can use that character. Avoid 0,
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* so that utilities, like strings, don't grab it as a string. 129 is also
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* invalid UTF-8, and high enough to be interesting.
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*
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* Use "lprofr" in the centre to stand for "LLVM Profile Raw", or "lprofR"
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* for 32-bit platforms.
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*/
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unsigned char R = sizeof(void *) == sizeof(uint64_t) ? 'r' : 'R';
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return
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(uint64_t)255 << 56 |
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(uint64_t)'l' << 48 |
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(uint64_t)'p' << 40 |
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(uint64_t)'r' << 32 |
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(uint64_t)'o' << 24 |
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(uint64_t)'f' << 16 |
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(uint64_t) R << 8 |
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(uint64_t)129;
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}
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__attribute__((visibility("hidden")))
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uint64_t __llvm_profile_get_version(void) {
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/* This should be bumped any time the output format changes. */
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return 1;
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}
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__attribute__((visibility("hidden")))
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void __llvm_profile_reset_counters(void) {
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uint64_t *I = __llvm_profile_counters_begin();
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uint64_t *E = __llvm_profile_counters_end();
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memset(I, 0, sizeof(uint64_t)*(E - I));
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}
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