gcov-io.c (gcov_var): Move from gcov-io.h.
2014-01-08 Rong Xu <xur@google.com> * gcc/gcov-io.c (gcov_var): Move from gcov-io.h. (gcov_position): Ditto. (gcov_is_error): Ditto. (gcov_rewrite): Ditto. * gcc/gcov-io.h: Refactor. Move gcov_var to gcov-io.h, and libgcov only part to libgcc/libgcov.h. * libgcc/libgcov-driver.c: Use libgcov.h. (buffer_fn_data): Use xmalloc instead of malloc. (gcov_exit_merge_gcda): Ditto. * libgcc/libgcov-driver-system.c (allocate_filename_struct): Ditto. * libgcc/libgcov.h: New common header files for libgcov-*.h. * libgcc/libgcov-interface.c: Use libgcov.h * libgcc/libgcov-merge.c: Ditto. * libgcc/libgcov-profiler.c: Ditto. * libgcc/Makefile.in: Add dependence to libgcov.h From-SVN: r206435
This commit is contained in:
Rong Xu
Teresa Johnson
parent
ab04b46efc
commit
40d6b7535c
@ -1,3 +1,12 @@
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2014-01-08 Rong Xu <xur@google.com>
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* gcov-io.c (gcov_var): Move from gcov-io.h.
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(gcov_position): Ditto.
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(gcov_is_error): Ditto.
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(gcov_rewrite): Ditto.
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* gcov-io.h: Refactor. Move gcov_var to gcov-io.h, and libgcov
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only part to libgcc/libgcov.h.
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2014-01-08 Marek Polacek <polacek@redhat.com>
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PR middle-end/59669
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@ -36,6 +36,61 @@ static const gcov_unsigned_t *gcov_read_words (unsigned);
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static void gcov_allocate (unsigned);
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#endif
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/* Optimum number of gcov_unsigned_t's read from or written to disk. */
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#define GCOV_BLOCK_SIZE (1 << 10)
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GCOV_LINKAGE struct gcov_var
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{
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FILE *file;
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gcov_position_t start; /* Position of first byte of block */
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unsigned offset; /* Read/write position within the block. */
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unsigned length; /* Read limit in the block. */
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unsigned overread; /* Number of words overread. */
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int error; /* < 0 overflow, > 0 disk error. */
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int mode; /* < 0 writing, > 0 reading */
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#if IN_LIBGCOV
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/* Holds one block plus 4 bytes, thus all coverage reads & writes
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fit within this buffer and we always can transfer GCOV_BLOCK_SIZE
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to and from the disk. libgcov never backtracks and only writes 4
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or 8 byte objects. */
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gcov_unsigned_t buffer[GCOV_BLOCK_SIZE + 1];
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#else
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int endian; /* Swap endianness. */
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/* Holds a variable length block, as the compiler can write
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strings and needs to backtrack. */
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size_t alloc;
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gcov_unsigned_t *buffer;
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#endif
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} gcov_var;
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/* Save the current position in the gcov file. */
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static inline gcov_position_t
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gcov_position (void)
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{
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gcc_assert (gcov_var.mode > 0);
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return gcov_var.start + gcov_var.offset;
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}
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/* Return nonzero if the error flag is set. */
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static inline int
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gcov_is_error (void)
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{
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return gcov_var.file ? gcov_var.error : 1;
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}
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#if IN_LIBGCOV
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/* Move to beginning of file and initialize for writing. */
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GCOV_LINKAGE inline void
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gcov_rewrite (void)
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{
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gcc_assert (gcov_var.mode > 0);
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gcov_var.mode = -1;
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gcov_var.start = 0;
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gcov_var.offset = 0;
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fseek (gcov_var.file, 0L, SEEK_SET);
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}
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#endif
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static inline gcov_unsigned_t from_file (gcov_unsigned_t value)
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{
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#if !IN_LIBGCOV
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270
gcc/gcov-io.h
270
gcc/gcov-io.h
@ -164,51 +164,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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#ifndef GCC_GCOV_IO_H
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#define GCC_GCOV_IO_H
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#if IN_LIBGCOV
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/* About the target */
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#if BITS_PER_UNIT == 8
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typedef unsigned gcov_unsigned_t __attribute__ ((mode (SI)));
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typedef unsigned gcov_position_t __attribute__ ((mode (SI)));
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#if LONG_LONG_TYPE_SIZE > 32
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typedef signed gcov_type __attribute__ ((mode (DI)));
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typedef unsigned gcov_type_unsigned __attribute__ ((mode (DI)));
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#else
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typedef signed gcov_type __attribute__ ((mode (SI)));
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typedef unsigned gcov_type_unsigned __attribute__ ((mode (SI)));
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#endif
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#else
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#if BITS_PER_UNIT == 16
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typedef unsigned gcov_unsigned_t __attribute__ ((mode (HI)));
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typedef unsigned gcov_position_t __attribute__ ((mode (HI)));
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#if LONG_LONG_TYPE_SIZE > 32
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typedef signed gcov_type __attribute__ ((mode (SI)));
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typedef unsigned gcov_type_unsigned __attribute__ ((mode (SI)));
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#else
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typedef signed gcov_type __attribute__ ((mode (HI)));
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typedef unsigned gcov_type_unsigned __attribute__ ((mode (HI)));
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#endif
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#else
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typedef unsigned gcov_unsigned_t __attribute__ ((mode (QI)));
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typedef unsigned gcov_position_t __attribute__ ((mode (QI)));
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#if LONG_LONG_TYPE_SIZE > 32
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typedef signed gcov_type __attribute__ ((mode (HI)));
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typedef unsigned gcov_type_unsigned __attribute__ ((mode (HI)));
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#else
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typedef signed gcov_type __attribute__ ((mode (QI)));
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typedef unsigned gcov_type_unsigned __attribute__ ((mode (QI)));
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#endif
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#endif
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#endif
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#if defined (TARGET_POSIX_IO)
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#define GCOV_LOCKED 1
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#else
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#define GCOV_LOCKED 0
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#endif
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#else /* !IN_LIBGCOV */
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#ifndef IN_LIBGCOV
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/* About the host */
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typedef unsigned gcov_unsigned_t;
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@ -231,47 +187,9 @@ typedef unsigned HOST_WIDEST_INT gcov_type_unsigned;
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#define GCOV_LOCKED 0
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#endif
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#endif /* !IN_LIBGCOV */
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/* In gcov we want function linkage to be static. In the compiler we want
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it extern, so that they can be accessed from elsewhere. In libgcov we
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need these functions to be extern, so prefix them with __gcov. In
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libgcov they must also be hidden so that the instance in the executable
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is not also used in a DSO. */
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#if IN_LIBGCOV
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#include "tconfig.h"
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#define gcov_var __gcov_var
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#define gcov_open __gcov_open
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#define gcov_close __gcov_close
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#define gcov_write_tag_length __gcov_write_tag_length
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#define gcov_position __gcov_position
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#define gcov_seek __gcov_seek
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#define gcov_rewrite __gcov_rewrite
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#define gcov_is_error __gcov_is_error
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#define gcov_write_unsigned __gcov_write_unsigned
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#define gcov_write_counter __gcov_write_counter
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#define gcov_write_summary __gcov_write_summary
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#define gcov_read_unsigned __gcov_read_unsigned
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#define gcov_read_counter __gcov_read_counter
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#define gcov_read_summary __gcov_read_summary
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/* Poison these, so they don't accidentally slip in. */
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#pragma GCC poison gcov_write_string gcov_write_tag gcov_write_length
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#pragma GCC poison gcov_read_string gcov_sync gcov_time gcov_magic
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#ifdef HAVE_GAS_HIDDEN
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#define ATTRIBUTE_HIDDEN __attribute__ ((__visibility__ ("hidden")))
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#else
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#define ATTRIBUTE_HIDDEN
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#endif
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#else
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#define ATTRIBUTE_HIDDEN
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#endif
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#endif /* !IN_LIBGOCV */
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#ifndef GCOV_LINKAGE
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#define GCOV_LINKAGE extern
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@ -442,132 +360,7 @@ struct gcov_summary
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struct gcov_ctr_summary ctrs[GCOV_COUNTERS_SUMMABLE];
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};
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/* Structures embedded in coveraged program. The structures generated
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by write_profile must match these. */
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#if IN_LIBGCOV
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/* Information about counters for a single function. */
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struct gcov_ctr_info
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{
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gcov_unsigned_t num; /* number of counters. */
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gcov_type *values; /* their values. */
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};
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/* Information about a single function. This uses the trailing array
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idiom. The number of counters is determined from the merge pointer
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array in gcov_info. The key is used to detect which of a set of
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comdat functions was selected -- it points to the gcov_info object
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of the object file containing the selected comdat function. */
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struct gcov_fn_info
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{
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const struct gcov_info *key; /* comdat key */
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gcov_unsigned_t ident; /* unique ident of function */
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gcov_unsigned_t lineno_checksum; /* function lineo_checksum */
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gcov_unsigned_t cfg_checksum; /* function cfg checksum */
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struct gcov_ctr_info ctrs[0]; /* instrumented counters */
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};
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/* Type of function used to merge counters. */
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typedef void (*gcov_merge_fn) (gcov_type *, gcov_unsigned_t);
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/* Information about a single object file. */
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struct gcov_info
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{
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gcov_unsigned_t version; /* expected version number */
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struct gcov_info *next; /* link to next, used by libgcov */
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gcov_unsigned_t stamp; /* uniquifying time stamp */
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const char *filename; /* output file name */
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gcov_merge_fn merge[GCOV_COUNTERS]; /* merge functions (null for
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unused) */
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unsigned n_functions; /* number of functions */
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const struct gcov_fn_info *const *functions; /* pointer to pointers
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to function information */
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};
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/* Register a new object file module. */
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extern void __gcov_init (struct gcov_info *) ATTRIBUTE_HIDDEN;
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/* Called before fork, to avoid double counting. */
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extern void __gcov_flush (void) ATTRIBUTE_HIDDEN;
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/* Function to reset all counters to 0. */
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extern void __gcov_reset (void);
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/* Function to enable early write of profile information so far. */
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extern void __gcov_dump (void);
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/* The merge function that just sums the counters. */
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extern void __gcov_merge_add (gcov_type *, unsigned) ATTRIBUTE_HIDDEN;
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/* The merge function to choose the most common value. */
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extern void __gcov_merge_single (gcov_type *, unsigned) ATTRIBUTE_HIDDEN;
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/* The merge function to choose the most common difference between
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consecutive values. */
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extern void __gcov_merge_delta (gcov_type *, unsigned) ATTRIBUTE_HIDDEN;
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/* The merge function that just ors the counters together. */
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extern void __gcov_merge_ior (gcov_type *, unsigned) ATTRIBUTE_HIDDEN;
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extern void __gcov_merge_time_profile (gcov_type *, unsigned) ATTRIBUTE_HIDDEN;
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/* The profiler functions. */
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extern void __gcov_interval_profiler (gcov_type *, gcov_type, int, unsigned);
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extern void __gcov_pow2_profiler (gcov_type *, gcov_type);
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extern void __gcov_one_value_profiler (gcov_type *, gcov_type);
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extern void __gcov_indirect_call_profiler (gcov_type*, gcov_type,
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void*, void*);
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extern void __gcov_indirect_call_profiler_v2 (gcov_type, void *);
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extern void __gcov_average_profiler (gcov_type *, gcov_type);
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extern void __gcov_ior_profiler (gcov_type *, gcov_type);
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extern void __gcov_time_profiler (gcov_type *);
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#ifndef inhibit_libc
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/* The wrappers around some library functions.. */
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extern pid_t __gcov_fork (void) ATTRIBUTE_HIDDEN;
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extern int __gcov_execl (const char *, char *, ...) ATTRIBUTE_HIDDEN;
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extern int __gcov_execlp (const char *, char *, ...) ATTRIBUTE_HIDDEN;
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extern int __gcov_execle (const char *, char *, ...) ATTRIBUTE_HIDDEN;
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extern int __gcov_execv (const char *, char *const []) ATTRIBUTE_HIDDEN;
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extern int __gcov_execvp (const char *, char *const []) ATTRIBUTE_HIDDEN;
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extern int __gcov_execve (const char *, char *const [], char *const [])
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ATTRIBUTE_HIDDEN;
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#endif
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#endif /* IN_LIBGCOV */
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#if IN_LIBGCOV >= 0
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/* Optimum number of gcov_unsigned_t's read from or written to disk. */
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#define GCOV_BLOCK_SIZE (1 << 10)
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GCOV_LINKAGE struct gcov_var
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{
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FILE *file;
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gcov_position_t start; /* Position of first byte of block */
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unsigned offset; /* Read/write position within the block. */
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unsigned length; /* Read limit in the block. */
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unsigned overread; /* Number of words overread. */
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int error; /* < 0 overflow, > 0 disk error. */
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int mode; /* < 0 writing, > 0 reading */
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#if IN_LIBGCOV
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/* Holds one block plus 4 bytes, thus all coverage reads & writes
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fit within this buffer and we always can transfer GCOV_BLOCK_SIZE
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to and from the disk. libgcov never backtracks and only writes 4
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or 8 byte objects. */
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gcov_unsigned_t buffer[GCOV_BLOCK_SIZE + 1];
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#else
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int endian; /* Swap endianness. */
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/* Holds a variable length block, as the compiler can write
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strings and needs to backtrack. */
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size_t alloc;
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gcov_unsigned_t *buffer;
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#endif
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} gcov_var ATTRIBUTE_HIDDEN;
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#if !defined(inhibit_libc)
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/* Functions for reading and writing gcov files. In libgcov you can
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open the file for reading then writing. Elsewhere you can open the
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@ -578,38 +371,20 @@ GCOV_LINKAGE struct gcov_var
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you use the functions for reading, then gcov_rewrite then the
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functions for writing. Your file may become corrupted if you break
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these invariants. */
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#if IN_LIBGCOV
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GCOV_LINKAGE int gcov_open (const char */*name*/) ATTRIBUTE_HIDDEN;
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#else
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#if !IN_LIBGCOV
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GCOV_LINKAGE int gcov_open (const char */*name*/, int /*direction*/);
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GCOV_LINKAGE int gcov_magic (gcov_unsigned_t, gcov_unsigned_t);
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#endif
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GCOV_LINKAGE int gcov_close (void) ATTRIBUTE_HIDDEN;
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/* Available everywhere. */
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static gcov_position_t gcov_position (void);
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static int gcov_is_error (void);
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GCOV_LINKAGE int gcov_close (void) ATTRIBUTE_HIDDEN;
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GCOV_LINKAGE gcov_unsigned_t gcov_read_unsigned (void) ATTRIBUTE_HIDDEN;
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GCOV_LINKAGE gcov_type gcov_read_counter (void) ATTRIBUTE_HIDDEN;
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GCOV_LINKAGE void gcov_read_summary (struct gcov_summary *) ATTRIBUTE_HIDDEN;
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#if IN_LIBGCOV
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/* Available only in libgcov */
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GCOV_LINKAGE void gcov_write_counter (gcov_type) ATTRIBUTE_HIDDEN;
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GCOV_LINKAGE void gcov_write_tag_length (gcov_unsigned_t, gcov_unsigned_t)
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ATTRIBUTE_HIDDEN;
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GCOV_LINKAGE void gcov_write_summary (gcov_unsigned_t /*tag*/,
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const struct gcov_summary *)
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ATTRIBUTE_HIDDEN;
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static void gcov_rewrite (void);
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GCOV_LINKAGE void gcov_seek (gcov_position_t /*position*/) ATTRIBUTE_HIDDEN;
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#else
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/* Available outside libgcov */
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GCOV_LINKAGE const char *gcov_read_string (void);
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GCOV_LINKAGE void gcov_sync (gcov_position_t /*base*/,
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gcov_unsigned_t /*length */);
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#endif
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#if !IN_GCOV
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/* Available outside gcov */
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@ -651,37 +426,6 @@ GCOV_LINKAGE void compute_working_sets (const struct gcov_ctr_summary *summary,
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GCOV_LINKAGE time_t gcov_time (void);
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#endif
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/* Save the current position in the gcov file. */
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static inline gcov_position_t
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gcov_position (void)
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{
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gcc_assert (gcov_var.mode > 0);
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return gcov_var.start + gcov_var.offset;
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}
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/* Return nonzero if the error flag is set. */
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static inline int
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gcov_is_error (void)
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{
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return gcov_var.file ? gcov_var.error : 1;
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}
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#if IN_LIBGCOV
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/* Move to beginning of file and initialize for writing. */
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static inline void
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gcov_rewrite (void)
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{
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gcc_assert (gcov_var.mode > 0);
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gcov_var.mode = -1;
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gcov_var.start = 0;
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gcov_var.offset = 0;
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fseek (gcov_var.file, 0L, SEEK_SET);
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}
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#endif
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#endif /* IN_LIBGCOV >= 0 */
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#endif /* !inhibit_libc */
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#endif /* GCC_GCOV_IO_H */
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@ -1,3 +1,15 @@
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2014-01-08 Rong Xu <xur@google.com>
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* libgcov-driver.c: Use libgcov.h.
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(buffer_fn_data): Use xmalloc instead of malloc.
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(gcov_exit_merge_gcda): Ditto.
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* libgcov-driver-system.c (allocate_filename_struct): Ditto.
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* libgcov.h: New common header files for libgcov-*.h.
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* libgcov-interface.c: Use libgcov.h
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* libgcov-merge.c: Ditto.
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* libgcov-profiler.c: Ditto.
|
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* Makefile.in: Add dependence to libgcov.h
|
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|
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2014-01-02 Joseph Myers <joseph@codesourcery.com>
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* config/rs6000/ibm-ldouble.c (__gcc_qdiv): Scale up arguments in
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@ -868,14 +868,14 @@ libgcov-driver-objects = $(patsubst %,%$(objext),$(LIBGCOV_DRIVER))
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libgcov-objects = $(libgcov-merge-objects) $(libgcov-profiler-objects) \
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$(libgcov-interface-objects) $(libgcov-driver-objects)
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$(libgcov-merge-objects): %$(objext): $(srcdir)/libgcov-merge.c
|
||||
$(libgcov-merge-objects): %$(objext): $(srcdir)/libgcov-merge.c $(srcdir)/libgcov.h
|
||||
$(gcc_compile) -DL$* -c $(srcdir)/libgcov-merge.c
|
||||
$(libgcov-profiler-objects): %$(objext): $(srcdir)/libgcov-profiler.c
|
||||
$(libgcov-profiler-objects): %$(objext): $(srcdir)/libgcov-profiler.c $(srcdir)/libgcov.h
|
||||
$(gcc_compile) -DL$* -c $(srcdir)/libgcov-profiler.c
|
||||
$(libgcov-interface-objects): %$(objext): $(srcdir)/libgcov-interface.c
|
||||
$(libgcov-interface-objects): %$(objext): $(srcdir)/libgcov-interface.c $(srcdir)/libgcov.h
|
||||
$(gcc_compile) -DL$* -c $(srcdir)/libgcov-interface.c
|
||||
$(libgcov-driver-objects): %$(objext): $(srcdir)/libgcov-driver.c \
|
||||
$(srcdir)/libgcov-driver-system.c
|
||||
$(srcdir)/libgcov-driver-system.c $(srcdir)/libgcov.h
|
||||
$(gcc_compile) -DL$* -c $(srcdir)/libgcov-driver.c
|
||||
|
||||
|
||||
|
||||
@ -124,7 +124,7 @@ allocate_filename_struct (struct gcov_filename_aux *gf)
|
||||
prefix_length = 1;
|
||||
}
|
||||
/* Allocate and initialize the filename scratch space plus one. */
|
||||
gi_filename = (char *) malloc (prefix_length + gcov_max_filename + 2);
|
||||
gi_filename = (char *) xmalloc (prefix_length + gcov_max_filename + 2);
|
||||
if (prefix_length)
|
||||
memcpy (gi_filename, gcov_prefix, prefix_length);
|
||||
gi_filename_up = gi_filename + prefix_length;
|
||||
|
||||
@ -23,21 +23,7 @@ a copy of the GCC Runtime Library Exception along with this program;
|
||||
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#include "tconfig.h"
|
||||
#include "tsystem.h"
|
||||
#include "coretypes.h"
|
||||
#include "tm.h"
|
||||
#include "libgcc_tm.h"
|
||||
|
||||
#if defined(inhibit_libc)
|
||||
#define IN_LIBGCOV (-1)
|
||||
#else
|
||||
#define IN_LIBGCOV 1
|
||||
#if defined(L_gcov)
|
||||
#define GCOV_LINKAGE /* nothing */
|
||||
#endif
|
||||
#endif
|
||||
#include "gcov-io.h"
|
||||
#include "libgcov.h"
|
||||
|
||||
#if defined(inhibit_libc)
|
||||
/* If libc and its header files are not available, provide dummy functions. */
|
||||
@ -156,7 +142,7 @@ buffer_fn_data (const char *filename, const struct gcov_info *gi_ptr,
|
||||
n_ctrs++;
|
||||
|
||||
len = sizeof (*fn_buffer) + sizeof (fn_buffer->info.ctrs[0]) * n_ctrs;
|
||||
fn_buffer = (struct gcov_fn_buffer *)malloc (len);
|
||||
fn_buffer = (struct gcov_fn_buffer *) xmalloc (len);
|
||||
|
||||
if (!fn_buffer)
|
||||
goto fail;
|
||||
@ -183,7 +169,7 @@ buffer_fn_data (const char *filename, const struct gcov_info *gi_ptr,
|
||||
|
||||
length = GCOV_TAG_COUNTER_NUM (gcov_read_unsigned ());
|
||||
len = length * sizeof (gcov_type);
|
||||
values = (gcov_type *)malloc (len);
|
||||
values = (gcov_type *) xmalloc (len);
|
||||
if (!values)
|
||||
goto fail;
|
||||
|
||||
@ -450,7 +436,7 @@ gcov_exit_merge_gcda (struct gcov_info *gi_ptr,
|
||||
histogram entries that will be emitted, and thus the
|
||||
size of the merged summary. */
|
||||
(*sum_tail) = (struct gcov_summary_buffer *)
|
||||
malloc (sizeof(struct gcov_summary_buffer));
|
||||
xmalloc (sizeof(struct gcov_summary_buffer));
|
||||
(*sum_tail)->summary = tmp;
|
||||
(*sum_tail)->next = 0;
|
||||
sum_tail = &((*sum_tail)->next);
|
||||
@ -718,7 +704,7 @@ gcov_exit_merge_summary (const struct gcov_info *gi_ptr, struct gcov_summary *pr
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
prg->checksum = crc32;
|
||||
|
||||
return 0;
|
||||
|
||||
@ -23,20 +23,9 @@ a copy of the GCC Runtime Library Exception along with this program;
|
||||
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#include "tconfig.h"
|
||||
#include "tsystem.h"
|
||||
#include "coretypes.h"
|
||||
#include "tm.h"
|
||||
#include "libgcc_tm.h"
|
||||
#include "libgcov.h"
|
||||
#include "gthr.h"
|
||||
|
||||
#if defined(inhibit_libc)
|
||||
#define IN_LIBGCOV (-1)
|
||||
#else
|
||||
#define IN_LIBGCOV 1
|
||||
#endif
|
||||
#include "gcov-io.h"
|
||||
|
||||
#if defined(inhibit_libc)
|
||||
|
||||
#ifdef L_gcov_flush
|
||||
|
||||
@ -23,19 +23,7 @@ a copy of the GCC Runtime Library Exception along with this program;
|
||||
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#include "tconfig.h"
|
||||
#include "tsystem.h"
|
||||
#include "coretypes.h"
|
||||
#include "tm.h"
|
||||
#include "libgcc_tm.h"
|
||||
|
||||
#if defined(inhibit_libc)
|
||||
#define IN_LIBGCOV (-1)
|
||||
#else
|
||||
#define IN_LIBGCOV 1
|
||||
#endif
|
||||
|
||||
#include "gcov-io.h"
|
||||
#include "libgcov.h"
|
||||
|
||||
#if defined(inhibit_libc)
|
||||
/* If libc and its header files are not available, provide dummy functions. */
|
||||
|
||||
@ -23,15 +23,8 @@ a copy of the GCC Runtime Library Exception along with this program;
|
||||
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#include "tconfig.h"
|
||||
#include "tsystem.h"
|
||||
#include "coretypes.h"
|
||||
#include "tm.h"
|
||||
#include "libgcc_tm.h"
|
||||
|
||||
#include "libgcov.h"
|
||||
#if !defined(inhibit_libc)
|
||||
#define IN_LIBGCOV 1
|
||||
#include "gcov-io.h"
|
||||
|
||||
#ifdef L_gcov_interval_profiler
|
||||
/* If VALUE is in interval <START, START + STEPS - 1>, then increases the
|
||||
|
||||
229
libgcc/libgcov.h
Normal file
229
libgcc/libgcov.h
Normal file
@ -0,0 +1,229 @@
|
||||
/* Header file for libgcov-*.c.
|
||||
Copyright (C) 1996-2014 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GCC.
|
||||
|
||||
GCC is free software; you can redistribute it and/or modify it under
|
||||
the terms of the GNU General Public License as published by the Free
|
||||
Software Foundation; either version 3, or (at your option) any later
|
||||
version.
|
||||
|
||||
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
for more details.
|
||||
|
||||
Under Section 7 of GPL version 3, you are granted additional
|
||||
permissions described in the GCC Runtime Library Exception, version
|
||||
3.1, as published by the Free Software Foundation.
|
||||
|
||||
You should have received a copy of the GNU General Public License and
|
||||
a copy of the GCC Runtime Library Exception along with this program;
|
||||
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#ifndef GCC_LIBGCOV_H
|
||||
#define GCC_LIBGCOV_H
|
||||
|
||||
/* work around the poisoned malloc/calloc in system.h. */
|
||||
#ifndef xmalloc
|
||||
#define xmalloc malloc
|
||||
#endif
|
||||
#ifndef xcalloc
|
||||
#define xcalloc calloc
|
||||
#endif
|
||||
|
||||
#include "tconfig.h"
|
||||
#include "tsystem.h"
|
||||
#include "coretypes.h"
|
||||
#include "tm.h"
|
||||
#include "libgcc_tm.h"
|
||||
|
||||
#if BITS_PER_UNIT == 8
|
||||
typedef unsigned gcov_unsigned_t __attribute__ ((mode (SI)));
|
||||
typedef unsigned gcov_position_t __attribute__ ((mode (SI)));
|
||||
#if LONG_LONG_TYPE_SIZE > 32
|
||||
typedef signed gcov_type __attribute__ ((mode (DI)));
|
||||
typedef unsigned gcov_type_unsigned __attribute__ ((mode (DI)));
|
||||
#else
|
||||
typedef signed gcov_type __attribute__ ((mode (SI)));
|
||||
typedef unsigned gcov_type_unsigned __attribute__ ((mode (SI)));
|
||||
#endif
|
||||
#else
|
||||
#if BITS_PER_UNIT == 16
|
||||
typedef unsigned gcov_unsigned_t __attribute__ ((mode (HI)));
|
||||
typedef unsigned gcov_position_t __attribute__ ((mode (HI)));
|
||||
#if LONG_LONG_TYPE_SIZE > 32
|
||||
typedef signed gcov_type __attribute__ ((mode (SI)));
|
||||
typedef unsigned gcov_type_unsigned __attribute__ ((mode (SI)));
|
||||
#else
|
||||
typedef signed gcov_type __attribute__ ((mode (HI)));
|
||||
typedef unsigned gcov_type_unsigned __attribute__ ((mode (HI)));
|
||||
#endif
|
||||
#else
|
||||
typedef unsigned gcov_unsigned_t __attribute__ ((mode (QI)));
|
||||
typedef unsigned gcov_position_t __attribute__ ((mode (QI)));
|
||||
#if LONG_LONG_TYPE_SIZE > 32
|
||||
typedef signed gcov_type __attribute__ ((mode (HI)));
|
||||
typedef unsigned gcov_type_unsigned __attribute__ ((mode (HI)));
|
||||
#else
|
||||
typedef signed gcov_type __attribute__ ((mode (QI)));
|
||||
typedef unsigned gcov_type_unsigned __attribute__ ((mode (QI)));
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#if defined (TARGET_POSIX_IO)
|
||||
#define GCOV_LOCKED 1
|
||||
#else
|
||||
#define GCOV_LOCKED 0
|
||||
#endif
|
||||
|
||||
#if defined(inhibit_libc)
|
||||
#define IN_LIBGCOV (-1)
|
||||
#else
|
||||
#define IN_LIBGCOV 1
|
||||
#if defined(L_gcov)
|
||||
#define GCOV_LINKAGE /* nothing */
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/* In libgcov we need these functions to be extern, so prefix them with
|
||||
__gcov. In libgcov they must also be hidden so that the instance in
|
||||
the executable is not also used in a DSO. */
|
||||
#define gcov_var __gcov_var
|
||||
#define gcov_open __gcov_open
|
||||
#define gcov_close __gcov_close
|
||||
#define gcov_write_tag_length __gcov_write_tag_length
|
||||
#define gcov_position __gcov_position
|
||||
#define gcov_seek __gcov_seek
|
||||
#define gcov_rewrite __gcov_rewrite
|
||||
#define gcov_is_error __gcov_is_error
|
||||
#define gcov_write_unsigned __gcov_write_unsigned
|
||||
#define gcov_write_counter __gcov_write_counter
|
||||
#define gcov_write_summary __gcov_write_summary
|
||||
#define gcov_read_unsigned __gcov_read_unsigned
|
||||
#define gcov_read_counter __gcov_read_counter
|
||||
#define gcov_read_summary __gcov_read_summary
|
||||
|
||||
/* Poison these, so they don't accidentally slip in. */
|
||||
#pragma GCC poison gcov_write_string gcov_write_tag gcov_write_length
|
||||
#pragma GCC poison gcov_time gcov_magic
|
||||
|
||||
#ifdef HAVE_GAS_HIDDEN
|
||||
#define ATTRIBUTE_HIDDEN __attribute__ ((__visibility__ ("hidden")))
|
||||
#else
|
||||
#define ATTRIBUTE_HIDDEN
|
||||
#endif
|
||||
|
||||
#include "gcov-io.h"
|
||||
|
||||
/* Structures embedded in coveraged program. The structures generated
|
||||
by write_profile must match these. */
|
||||
|
||||
/* Information about counters for a single function. */
|
||||
struct gcov_ctr_info
|
||||
{
|
||||
gcov_unsigned_t num; /* number of counters. */
|
||||
gcov_type *values; /* their values. */
|
||||
};
|
||||
|
||||
/* Information about a single function. This uses the trailing array
|
||||
idiom. The number of counters is determined from the merge pointer
|
||||
array in gcov_info. The key is used to detect which of a set of
|
||||
comdat functions was selected -- it points to the gcov_info object
|
||||
of the object file containing the selected comdat function. */
|
||||
|
||||
struct gcov_fn_info
|
||||
{
|
||||
const struct gcov_info *key; /* comdat key */
|
||||
gcov_unsigned_t ident; /* unique ident of function */
|
||||
gcov_unsigned_t lineno_checksum; /* function lineo_checksum */
|
||||
gcov_unsigned_t cfg_checksum; /* function cfg checksum */
|
||||
struct gcov_ctr_info ctrs[0]; /* instrumented counters */
|
||||
};
|
||||
|
||||
/* Type of function used to merge counters. */
|
||||
typedef void (*gcov_merge_fn) (gcov_type *, gcov_unsigned_t);
|
||||
|
||||
/* Information about a single object file. */
|
||||
struct gcov_info
|
||||
{
|
||||
gcov_unsigned_t version; /* expected version number */
|
||||
struct gcov_info *next; /* link to next, used by libgcov */
|
||||
|
||||
gcov_unsigned_t stamp; /* uniquifying time stamp */
|
||||
const char *filename; /* output file name */
|
||||
|
||||
gcov_merge_fn merge[GCOV_COUNTERS]; /* merge functions (null for
|
||||
unused) */
|
||||
|
||||
unsigned n_functions; /* number of functions */
|
||||
const struct gcov_fn_info *const *functions; /* pointer to pointers
|
||||
to function information */
|
||||
};
|
||||
|
||||
/* Register a new object file module. */
|
||||
extern void __gcov_init (struct gcov_info *) ATTRIBUTE_HIDDEN;
|
||||
|
||||
/* Called before fork, to avoid double counting. */
|
||||
extern void __gcov_flush (void) ATTRIBUTE_HIDDEN;
|
||||
|
||||
/* Function to reset all counters to 0. */
|
||||
extern void __gcov_reset (void);
|
||||
|
||||
/* Function to enable early write of profile information so far. */
|
||||
extern void __gcov_dump (void);
|
||||
|
||||
/* The merge function that just sums the counters. */
|
||||
extern void __gcov_merge_add (gcov_type *, unsigned) ATTRIBUTE_HIDDEN;
|
||||
|
||||
/* The merge function to select the minimum valid counter value. */
|
||||
extern void __gcov_merge_time_profile (gcov_type *, unsigned) ATTRIBUTE_HIDDEN;
|
||||
|
||||
/* The merge function to choose the most common value. */
|
||||
extern void __gcov_merge_single (gcov_type *, unsigned) ATTRIBUTE_HIDDEN;
|
||||
|
||||
/* The merge function to choose the most common difference between
|
||||
consecutive values. */
|
||||
extern void __gcov_merge_delta (gcov_type *, unsigned) ATTRIBUTE_HIDDEN;
|
||||
|
||||
/* The merge function that just ors the counters together. */
|
||||
extern void __gcov_merge_ior (gcov_type *, unsigned) ATTRIBUTE_HIDDEN;
|
||||
|
||||
/* The profiler functions. */
|
||||
extern void __gcov_interval_profiler (gcov_type *, gcov_type, int, unsigned);
|
||||
extern void __gcov_pow2_profiler (gcov_type *, gcov_type);
|
||||
extern void __gcov_one_value_profiler (gcov_type *, gcov_type);
|
||||
extern void __gcov_indirect_call_profiler (gcov_type*, gcov_type,
|
||||
void*, void*);
|
||||
extern void __gcov_indirect_call_profiler_v2 (gcov_type, void *);
|
||||
extern void __gcov_time_profiler (gcov_type *);
|
||||
extern void __gcov_average_profiler (gcov_type *, gcov_type);
|
||||
extern void __gcov_ior_profiler (gcov_type *, gcov_type);
|
||||
|
||||
#ifndef inhibit_libc
|
||||
/* The wrappers around some library functions.. */
|
||||
extern pid_t __gcov_fork (void) ATTRIBUTE_HIDDEN;
|
||||
extern int __gcov_execl (const char *, char *, ...) ATTRIBUTE_HIDDEN;
|
||||
extern int __gcov_execlp (const char *, char *, ...) ATTRIBUTE_HIDDEN;
|
||||
extern int __gcov_execle (const char *, char *, ...) ATTRIBUTE_HIDDEN;
|
||||
extern int __gcov_execv (const char *, char *const []) ATTRIBUTE_HIDDEN;
|
||||
extern int __gcov_execvp (const char *, char *const []) ATTRIBUTE_HIDDEN;
|
||||
extern int __gcov_execve (const char *, char *const [], char *const [])
|
||||
ATTRIBUTE_HIDDEN;
|
||||
|
||||
/* Functions that only available in libgcov. */
|
||||
GCOV_LINKAGE int gcov_open (const char */*name*/) ATTRIBUTE_HIDDEN;
|
||||
GCOV_LINKAGE void gcov_write_counter (gcov_type) ATTRIBUTE_HIDDEN;
|
||||
GCOV_LINKAGE void gcov_write_tag_length (gcov_unsigned_t, gcov_unsigned_t)
|
||||
ATTRIBUTE_HIDDEN;
|
||||
GCOV_LINKAGE void gcov_write_summary (gcov_unsigned_t /*tag*/,
|
||||
const struct gcov_summary *)
|
||||
ATTRIBUTE_HIDDEN;
|
||||
GCOV_LINKAGE void gcov_seek (gcov_position_t /*position*/) ATTRIBUTE_HIDDEN;
|
||||
GCOV_LINKAGE inline void gcov_rewrite (void);
|
||||
|
||||
#endif /* !inhibit_libc */
|
||||
|
||||
#endif /* GCC_LIBGCOV_H */
|
||||
Loading…
x
Reference in New Issue
Block a user