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-rw-r--r--recipes/gcc/gcc-3.4.6/GCOV_PREFIX_STRIP-cross-profile_3.4.patch389
1 files changed, 389 insertions, 0 deletions
diff --git a/recipes/gcc/gcc-3.4.6/GCOV_PREFIX_STRIP-cross-profile_3.4.patch b/recipes/gcc/gcc-3.4.6/GCOV_PREFIX_STRIP-cross-profile_3.4.patch
new file mode 100644
index 0000000000..701a687e05
--- /dev/null
+++ b/recipes/gcc/gcc-3.4.6/GCOV_PREFIX_STRIP-cross-profile_3.4.patch
@@ -0,0 +1,389 @@
+2005-05-04 Grigory Zagorodnev <grigory.zagorodnev@intel.com>
+ H.J. Lu <hongjiu.lu@intel.com>
+
+
+ Cross-profiling support: relocate .gcda files when
+ running at system other than executable been built on.
+
+
+ * 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.
+
+Grigory Zagorodnev
+Intel Corporation
+
+--- gcc-3.4/gcc/gcov-io.c.prefix 2004-02-26 13:54:47.000000000 -0800
++++ gcc-3.4/gcc/gcov-io.c 2005-05-04 11:46:01.000000000 -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;
+@@ -83,6 +84,14 @@ 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);
++ *tmp = '\0';
++ name = strcat( strcat(tmp, prefix), name);
++#endif
++
+ #if GCOV_LOCKED
+ if (mode > 0)
+ fd = open (name, O_RDWR);
+--- gcc-3.4/gcc/gcov-io.h.prefix 2005-05-02 15:37:58.000000000 -0700
++++ gcc-3.4/gcc/gcov-io.h 2005-05-04 11:46:01.000000000 -0700
+@@ -502,7 +502,7 @@ 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-3.4/gcc/libgcov.c.prefix 2004-02-26 13:54:47.000000000 -0800
++++ gcc-3.4/gcc/libgcov.c 2005-05-04 12:01:58.000000000 -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;
+@@ -204,9 +268,14 @@ 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:Cannot open\n", 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%s:Cannot open\n", gcov_prefix, gi_ptr->filename);
+ continue;
+ }
+
+@@ -216,8 +285,8 @@ 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);
+ read_fatal:;
+ gcov_close ();
+ continue;
+@@ -250,8 +319,8 @@ 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;
+ }
+@@ -309,8 +378,8 @@ gcov_exit (void)
+ if (!gcov_is_eof ())
+ {
+ read_error:;
+- fprintf (stderr, error < 0 ? "profiling:%s:Overflow merging\n"
+- : "profiling:%s:Error merging\n", gi_ptr->filename);
++ fprintf (stderr, error < 0 ? "profiling:%s%s:Overflow merging\n"
++ : "profiling:%s%s:Error merging\n", gcov_prefix, gi_ptr->filename);
+ goto read_fatal;
+ }
+ rewrite:;
+@@ -357,8 +426,8 @@ 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;
+ }
+@@ -418,9 +487,9 @@ gcov_exit (void)
+ gcov_write_summary (GCOV_TAG_PROGRAM_SUMMARY, &program);
+ 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);
+ }
+ }
+
+@@ -430,11 +499,69 @@ 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-3.4/gcc/tsystem.h.prefix 2003-11-12 16:07:48.000000000 -0800
++++ gcc-3.4/gcc/tsystem.h 2005-05-04 12:12:08.000000000 -0700
+@@ -106,4 +106,15 @@ extern int errno;
+ #define NULL 0
+ #endif
+
++/* 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 */
+Index: gcc-3.4/gcc/doc/gcov.texi
+===================================================================
+RCS file: /cvsroot/gcc/gcc/gcc/doc/gcov.texi,v
+retrieving revision 1.19.4.3
+diff -u -p -r1.19.4.3 gcov.texi
+--- gcc-3.4/gcc/doc/gcov.texi 14 Mar 2004 22:31:20 -0000 1.19.4.3
++++ gcc-3.4/gcc/doc/gcov.texi 4 May 2005 13:44:25 -0000
+@@ -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
+@@ -510,3 +511,36 @@ 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.
+Index: gcc-3.4/gcc/doc/invoke.texi
+===================================================================
+RCS file: /cvsroot/gcc/gcc/gcc/doc/invoke.texi,v
+retrieving revision 1.390.2.40
+diff -u -p -r1.390.2.40 invoke.texi
+--- gcc-3.4/gcc/doc/invoke.texi 22 Apr 2005 06:49:59 -0000 1.390.2.40
++++ gcc-3.4/gcc/doc/invoke.texi 4 May 2005 13:44:25 -0000
+@@ -3158,6 +3158,7 @@ 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}.
+
+ @itemize
+
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