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executor: update KCOV support for FreeBSD

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KCOV support has been added to FreeBSD in r342962. Use
the header file and update the code to latest changes
introduced in the review process.
This commit is contained in:
Michael Tuexen 2019-01-12 18:22:40 +01:00 committed by Dmitry Vyukov
parent 95f1d718cf
commit 9eb9389ab9
1 changed files with 4 additions and 17 deletions
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21
executor/executor_bsd.h
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@ -40,18 +40,8 @@ static long execute_syscall(const call_t* c, long a[kMaxArgs])
#if GOOS_freebsd
// TODO(mptre): once kcov is merged to FreeBSD[1], just include sys/kcov.h for
// both FreeBSD and OpenBSD.
//
// [1] https://reviews.freebsd.org/D14599
#define KIOENABLE _IOWINT('c', 2) // Enable coverage recording
#define KIODISABLE _IO('c', 3) // Disable coverage recording
#define KIOSETBUFSIZE _IOWINT('c', 4) // Set the buffer size
#define KCOV_MODE_NONE -1
#define KCOV_MODE_TRACE_PC 0
#define KCOV_MODE_TRACE_CMP 1
// KCOV support was added in https://svnweb.freebsd.org/changeset/base/342962
#include <sys/kcov.h>
#elif GOOS_openbsd
@ -74,8 +64,7 @@ static void cover_open(cover_t* cov)
close(fd);
#if GOOS_freebsd
// On FreeBSD provide the size in bytes, not in number of entries.
if (ioctl(cov->fd, KIOSETBUFSIZE, kCoverSize * sizeof(uint64_t)))
if (ioctl(cov->fd, KIOSETBUFSIZE, kCoverSize))
fail("ioctl init trace write failed");
#elif GOOS_openbsd
unsigned long cover_size = kCoverSize;
@ -84,9 +73,7 @@ static void cover_open(cover_t* cov)
#endif
#if GOOS_freebsd
// FreeBSD only supports kcov on 64-bit platforms and always uses
// entries of type uint64_t.
size_t mmap_alloc_size = kCoverSize * sizeof(uint64_t);
size_t mmap_alloc_size = kCoverSize * KCOV_ENTRY_SIZE;
#else
size_t mmap_alloc_size = kCoverSize * (is_kernel_64_bit ? 8 : 4);
#endif