diff options
| author | Andreas Schwab <schwab@linux-m68k.org> | 2010-07-25 21:09:54 +0200 |
|---|---|---|
| committer | Andreas Schwab <schwab@linux-m68k.org> | 2010-07-25 21:09:54 +0200 |
| commit | dcc19aacb785a5a0de0184342ab8eae714bff916 (patch) | |
| tree | 108d2dcfc0ec36a97a0283a849f6de2ad2d8f75e /src | |
| parent | 7bfa6d7793030944556daeede46dff688465cfd7 (diff) | |
| download | emacs-dcc19aacb785a5a0de0184342ab8eae714bff916.tar.gz | |
Use __executable_start to find start of text segment for profiling
* emacs.c (main) [PROFILING]: Use __executable_start if defined to
find start of text segment.
* dispnew.c (safe_bcopy): Don't define if HAVE___EXECUTABLE_START
is defined.
* configure.in: Check for __executable_start.
Diffstat (limited to 'src')
| -rw-r--r-- | src/ChangeLog | 5 | ||||
| -rw-r--r-- | src/config.in | 3 | ||||
| -rw-r--r-- | src/dispnew.c | 2 | ||||
| -rw-r--r-- | src/emacs.c | 10 |
4 files changed, 19 insertions, 1 deletions
diff --git a/src/ChangeLog b/src/ChangeLog index 0ed773d1acd..50a9fcb8ba8 100644 --- a/src/ChangeLog +++ b/src/ChangeLog @@ -1,5 +1,10 @@ 2010-07-25 Andreas Schwab <schwab@linux-m68k.org> + * emacs.c (main) [PROFILING]: Use __executable_start if defined to + find start of text segment. + * dispnew.c (safe_bcopy): Don't define if HAVE___EXECUTABLE_START + is defined. + * callproc.c (set_initial_environment): Avoid unbalanced braces. 2010-07-25 Ken Brown <kbrown@cornell.edu> diff --git a/src/config.in b/src/config.in index 40b62633446..647c8804dff 100644 --- a/src/config.in +++ b/src/config.in @@ -801,6 +801,9 @@ along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ /* Define to 1 if you want to use the X window system. */ #undef HAVE_X_WINDOWS +/* Define to 1 if you have the `__executable_start' function. */ +#undef HAVE___EXECUTABLE_START + /* Define to 1 if you have the `__fpending' function. */ #undef HAVE___FPENDING diff --git a/src/dispnew.c b/src/dispnew.c index fe64143ec07..73aafe07d94 100644 --- a/src/dispnew.c +++ b/src/dispnew.c @@ -436,7 +436,7 @@ DEFUN ("dump-redisplay-history", Fdump_redisplay_history, #endif /* GLYPH_DEBUG == 0 */ -#ifdef PROFILING +#if defined PROFILING && !HAVE___EXECUTABLE_START /* FIXME: only used to find text start for profiling. */ void diff --git a/src/emacs.c b/src/emacs.c index fbae7763877..a5d57116c4f 100644 --- a/src/emacs.c +++ b/src/emacs.c @@ -1747,9 +1747,18 @@ main (int argc, char **argv) #else extern char etext; #endif +#ifdef HAVE___EXECUTABLE_START + /* This symbol is defined by GNU ld to the start of the text + segment. */ + extern char __executable_start[]; +#else extern void safe_bcopy (); +#endif atexit (_mcleanup); +#ifdef HAVE___EXECUTABLE_START + monstartup (__executable_start, &etext); +#else /* This uses safe_bcopy because that function comes first in the Emacs executable. It might be better to use something that gives the start of the text segment, but start_of_text is not @@ -1757,6 +1766,7 @@ main (int argc, char **argv) /* FIXME: Does not work on architectures with function descriptors. */ monstartup (safe_bcopy, &etext); +#endif } else moncontrol (0); |