diff options
Diffstat (limited to 'packages/gcc/gcc-4.0.2/GCOV_PREFIX_STRIP-cross-profile_4.1.patch')
| -rw-r--r-- | packages/gcc/gcc-4.0.2/GCOV_PREFIX_STRIP-cross-profile_4.1.patch | 371 |
1 files changed, 371 insertions, 0 deletions
diff --git a/packages/gcc/gcc-4.0.2/GCOV_PREFIX_STRIP-cross-profile_4.1.patch b/packages/gcc/gcc-4.0.2/GCOV_PREFIX_STRIP-cross-profile_4.1.patch new file mode 100644 index 0000000000..92ce00a1e3 --- /dev/null +++ b/packages/gcc/gcc-4.0.2/GCOV_PREFIX_STRIP-cross-profile_4.1.patch @@ -0,0 +1,371 @@ +2005-05-04 Grigory Zagorodnev <grigory.zagorodnev@intel.com> + H.J. Lu <hongjiu.lu@intel.com> + + * gcov-io.c (gcov_open): When in libgcov library + use given data file relocation prefix to build file name. + * gcov-io.h (gcov_open): Updated proto to accept + data file relocation prefix. + * libgcov.c (create_file_directory): New function. + (gcov_prefix): New static variable to hold data file + relocation prefix. + (gcov_version): Use relocation prefix. + (gcov_exit): Always try to create directory for output + file. Relocate filename at each use. + (__gcov_init): Initialize directory relocation prefix + if required. Strip off leading directories from + the initial filename. + * tsystem.h: include filenames.h + (DIR_SEPARATOR): Macro copied from system.h. + (DIR_SEPARATOR_2): Likewise. + * doc/gcov.texi (Cross-profiling): New node documenting + cross-profiling management. + * doc/invoke.texi (-fprofile-arcs): xref to cross-profiling. + +--- gcc-4/gcc/doc/gcov.texi.prefix 2005-03-28 11:56:34.000000000 -0800 ++++ gcc-4/gcc/doc/gcov.texi 2005-05-04 15:07:44.000000000 -0700 +@@ -42,6 +42,7 @@ test code coverage in your programs. + * Invoking Gcov:: How to use gcov. + * Gcov and Optimization:: Using gcov with GCC optimization. + * Gcov Data Files:: The files used by gcov. ++* Cross-profiling:: Data files relocation. + @end menu + + @node Gcov Intro +@@ -531,3 +532,36 @@ information. + The full details of the file format is specified in @file{gcov-io.h}, + and functions provided in that header file should be used to access the + coverage files. ++ ++@node Cross-profiling ++@section Data files relocation to support cross-profiling ++ ++Running the program will cause profile output to be generated. For each ++source file compiled with @option{-fprofile-arcs}, an accompanying @file{.gcda} ++file will be placed in the object file directory. That implicitly requires ++running the program at the same system as it was build or having same ++absolute directory structure on the target system (program will try ++to create needed directory structure). ++ ++To support cross-profiling, program compiled with @option{-fprofile-arcs} ++performs data file relocation basing on two environment variables: ++ ++@itemize @bullet ++@item ++GCOV_PREFIX contains the prefix to add to the absolute paths ++in the object file. ++ ++@item ++GCOV_PREFIX_STRIP indicates the how many initial directory names to strip off ++the hardwired absolute paths. Default value is 0. ++@end itemize ++ ++For example, if object file @file{/user/build/foo.o} was build with ++@option{-fprofile-arcs}, the final executable will try to create data file ++@file{/user/build/foo.gcda} when running at the target system and will ++fail if corresponding directory does not exists and is not allowed to create. ++ ++In this case, manipulating environment variables you can relocate data file ++to the suitable local directory. For our example, setting @samp{GCOV_PREFIX=/target/run} ++and @samp{GCOV_PREFIX_STRIP=1} values will force use of @file{/target/run/build/foo.gcda} ++file name. +--- gcc-4/gcc/doc/invoke.texi.prefix 2005-05-04 11:21:00.000000000 -0700 ++++ gcc-4/gcc/doc/invoke.texi 2005-05-04 15:07:44.000000000 -0700 +@@ -3420,6 +3420,7 @@ explicitly specified and it is not the f + the basename of the source file. In both cases any suffix is removed + (e.g.@: @file{foo.gcda} for input file @file{dir/foo.c}, or + @file{dir/foo.gcda} for output file specified as @option{-o dir/foo.o}). ++@xref{Cross-profiling}. + + @cindex @command{gcov} + @item --coverage +--- gcc-4/gcc/gcov-io.c.prefix 2005-04-28 16:11:30.000000000 -0700 ++++ gcc-4/gcc/gcov-io.c 2005-05-04 20:02:35.000000000 -0700 +@@ -55,13 +55,14 @@ static inline gcov_unsigned_t from_file + + GCOV_LINKAGE int + #if IN_LIBGCOV +-gcov_open (const char *name) ++gcov_open (const char *prefix, const char *name) + #else + gcov_open (const char *name, int mode) + #endif + { + #if IN_LIBGCOV + const int mode = 0; ++ char *tmp; + #endif + #if GCOV_LOCKED + struct flock s_flock; +@@ -82,6 +83,13 @@ gcov_open (const char *name, int mode) + #if !IN_LIBGCOV + gcov_var.endian = 0; + #endif ++ ++#if IN_LIBGCOV ++ /* Build complete filename with prefix */ ++ tmp = alloca (strlen (prefix) + strlen (name) + 1); ++ name = strcat (strcpy (tmp, prefix), name); ++#endif ++ + #if GCOV_LOCKED + if (mode > 0) + fd = open (name, O_RDWR); +--- gcc-4/gcc/gcov-io.h.prefix 2005-05-02 17:43:08.000000000 -0700 ++++ gcc-4/gcc/gcov-io.h 2005-05-04 15:07:44.000000000 -0700 +@@ -515,7 +515,7 @@ GCOV_LINKAGE struct gcov_var + functions for writing. Your file may become corrupted if you break + these invariants. */ + #if IN_LIBGCOV +-GCOV_LINKAGE int gcov_open (const char */*name*/) ATTRIBUTE_HIDDEN; ++GCOV_LINKAGE int gcov_open (const char */*prefix*/, const char */*name*/) ATTRIBUTE_HIDDEN; + #else + GCOV_LINKAGE int gcov_open (const char */*name*/, int /*direction*/); + GCOV_LINKAGE int gcov_magic (gcov_unsigned_t, gcov_unsigned_t); +--- gcc-4/gcc/libgcov.c.prefix 2005-04-28 16:11:30.000000000 -0700 ++++ gcc-4/gcc/libgcov.c 2005-05-04 15:07:44.000000000 -0700 +@@ -92,6 +92,70 @@ static struct gcov_info *gcov_list; + object file included in multiple programs. */ + static gcov_unsigned_t gcov_crc32; + ++/* Directory prefix to relocate coverage data file names */ ++static char *gcov_prefix = 0; ++ ++/* Level of dirs to strip off the initial filename to relocate */ ++static int gcov_prefix_strip = 0; ++ ++static int ++create_file_directory (const char *prefix, const char *filename) ++{ ++ char *dname; ++ char sep, *r, *s; ++ size_t plen, flen; ++ ++ /* Detect directory separator */ ++ s = strrchr (prefix, DIR_SEPARATOR); ++#ifdef DIR_SEPARATOR_2 ++ if (! s) ++ s = strrchr (prefix, DIR_SEPARATOR_2); ++#endif ++ if (s) ++ sep = *s; ++ else ++ sep = DIR_SEPARATOR; ++ ++ /* join prefix and filename, split path */ ++ plen = strlen(prefix); ++ flen = strlen(filename); ++ r = alloca(plen + flen + 1); ++ strncpy(r, prefix, plen); ++ strncpy(r + plen, filename, flen); ++ r[plen + flen] = '\0'; ++ s = strrchr(r, sep); ++ if (s) ++ *(s + 1) = '\0'; ++ ++ if (access (r, F_OK) == 0) ++ return 0; ++ ++ /* Skip consecutive separators. */ ++ for (dname = r; *dname && *dname == sep; ++dname); ++ while (1) ++ { ++ char *s = strchr (dname, sep); ++ if (s == 0) ++ break; ++ *s = '\0'; ++ /* Try to make directory if it doesn't already exist. */ ++ if (access (r, F_OK) == -1 ++ && mkdir (r, 0755) == -1 ++ /* The directory might have been made by another process. */ ++ && errno != EEXIST) ++ { ++ *s = sep; ++ fprintf (stderr, "profiling:%s:Cannot create directory\n", r); ++ return -1; ++ }; ++ *s = sep; ++ /* Skip consecutive separators. */ ++ for (dname = s + 1; *dname && *dname == sep; ++dname) ++ ; ++ } ++ return 0; ++} ++ + static int + gcov_version (struct gcov_info *ptr, gcov_unsigned_t version) + { +@@ -103,8 +167,8 @@ gcov_version (struct gcov_info *ptr, gco + GCOV_UNSIGNED2STRING (e, GCOV_VERSION); + + fprintf (stderr, +- "profiling:%s:Version mismatch - expected %.4s got %.4s\n", +- ptr->filename, e, v); ++ "profiling:%s%s:Version mismatch - expected %.4s got %.4s\n", ++ gcov_prefix, ptr->filename, e, v); + return 0; + } + return 1; +@@ -205,9 +269,16 @@ gcov_exit (void) + fi_stride &= ~(__alignof__ (struct gcov_fn_info) - 1); + } + +- if (!gcov_open (gi_ptr->filename)) ++ if (create_file_directory (gcov_prefix, gi_ptr->filename)) ++ { ++ fprintf (stderr, "profiling:%s%s:Skip\n", gcov_prefix, ++ gi_ptr->filename); ++ continue; ++ } ++ else if (!gcov_open (gcov_prefix, gi_ptr->filename)) + { +- fprintf (stderr, "profiling:%s:Cannot open\n", gi_ptr->filename); ++ fprintf (stderr, "profiling:%s%s:Cannot open\n", gcov_prefix, ++ gi_ptr->filename); + continue; + } + +@@ -217,8 +288,8 @@ gcov_exit (void) + /* Merge data from file. */ + if (tag != GCOV_DATA_MAGIC) + { +- fprintf (stderr, "profiling:%s:Not a gcov data file\n", +- gi_ptr->filename); ++ fprintf (stderr, "profiling:%s%s:Not a gcov data file\n", ++ gcov_prefix, gi_ptr->filename); + goto read_fatal; + } + length = gcov_read_unsigned (); +@@ -245,8 +316,8 @@ gcov_exit (void) + || gcov_read_unsigned () != fi_ptr->checksum) + { + read_mismatch:; +- fprintf (stderr, "profiling:%s:Merge mismatch for %s\n", +- gi_ptr->filename, ++ fprintf (stderr, "profiling:%s%s:Merge mismatch for %s\n", ++ gcov_prefix, gi_ptr->filename, + f_ix + 1 ? "function" : "summaries"); + goto read_fatal; + } +@@ -305,7 +376,8 @@ gcov_exit (void) + + read_error:; + fprintf (stderr, error < 0 ? "profiling:%s:Overflow merging\n" +- : "profiling:%s:Error merging\n", gi_ptr->filename); ++ : "profiling:%s%s:Error merging\n", gcov_prefix, ++ gi_ptr->filename); + + read_fatal:; + gcov_close (); +@@ -355,8 +427,8 @@ gcov_exit (void) + && (!GCOV_LOCKED || cs_all->runs == cs_prg->runs) + && memcmp (cs_all, cs_prg, sizeof (*cs_all))) + { +- fprintf (stderr, "profiling:%s:Invocation mismatch - some data files may have been removed%s", +- gi_ptr->filename, GCOV_LOCKED ++ fprintf (stderr, "profiling:%s%s:Invocation mismatch - some data files may have been removed%s", ++ gcov_prefix, gi_ptr->filename, GCOV_LOCKED + ? "" : " or concurrent update without locking support"); + all.checksum = ~0u; + } +@@ -419,9 +491,9 @@ gcov_exit (void) + gcov_write_unsigned (0); + if ((error = gcov_close ())) + fprintf (stderr, error < 0 ? +- "profiling:%s:Overflow writing\n" : +- "profiling:%s:Error writing\n", +- gi_ptr->filename); ++ "profiling:%s%s:Overflow writing\n" : ++ "profiling:%s%s:Error writing\n", ++ gcov_prefix, gi_ptr->filename); + } + } + +@@ -431,11 +503,69 @@ gcov_exit (void) + void + __gcov_init (struct gcov_info *info) + { ++ /* Save initial filename pointer to calculate CRC. */ ++ const char *ptr = info->filename; ++ + if (!info->version) + return; ++ ++ /* Initialize directory prefix if requred */ ++ if (gcov_prefix == 0) ++ { ++ if ((gcov_prefix = getenv("GCOV_PREFIX"))) ++ { ++ char *tmp; ++ ++ /* Normalize prefix: take off trailing separator. */ ++ tmp = gcov_prefix + strlen(gcov_prefix) - 1; ++ if (IS_DIR_SEPARATOR(*tmp)) ++ *tmp = '\0'; ++ ++ /* Check if the level of dirs to strip off specified */ ++ if ((tmp = getenv("GCOV_PREFIX_STRIP"))) ++ { ++ gcov_prefix_strip = atoi (tmp); ++ /* Do not consider negative values. */ ++ if (gcov_prefix_strip < 0) ++ gcov_prefix_strip = 0; ++ }; ++ } ++ else ++ gcov_prefix = (char *) ""; ++ }; ++ ++ /* Strip off leading directories from the initial filename */ ++ if (gcov_prefix_strip > 0) ++ { ++ char sep, *s; ++ int level; ++ const char *fname = info->filename; ++ ++ /* Detect directory separator */ ++ s = strrchr (fname, DIR_SEPARATOR); ++#ifdef DIR_SEPARATOR_2 ++ if (! s) ++ s = strrchr (fname, DIR_SEPARATOR_2); ++#endif ++ if (s) ++ sep = *s; ++ else ++ sep = DIR_SEPARATOR; ++ ++ /* Skip selected directory levels */ ++ for ( level = gcov_prefix_strip; level > 0; level--) ++ if ((s = strchr(fname + 1, sep))) ++ fname = s; ++ else ++ break; ++ ++ /* From this point info block refers stripped file name and ++ further operations must add prefix to get complete name.*/ ++ info->filename = fname; ++ }; ++ + if (gcov_version (info, info->version)) + { +- const char *ptr = info->filename; + gcov_unsigned_t crc32 = gcov_crc32; + + do +--- gcc-4/gcc/tsystem.h.prefix 2005-03-29 16:06:26.000000000 -0800 ++++ gcc-4/gcc/tsystem.h 2005-05-04 15:07:44.000000000 -0700 +@@ -131,4 +131,15 @@ extern int errno; + unreachable default case of a switch. Do not use gcc_assert(0). */ + #define gcc_unreachable() (abort ()) + ++/* Filename handling macros. */ ++#include "filenames.h" ++ ++/* These should be phased out in favor of IS_DIR_SEPARATOR, where possible. */ ++#ifndef DIR_SEPARATOR ++# define DIR_SEPARATOR '/' ++# ifdef HAVE_DOS_BASED_FILE_SYSTEM ++# define DIR_SEPARATOR_2 '\\' ++# endif ++#endif ++ + #endif /* ! GCC_TSYSTEM_H */ |