diff options
Diffstat (limited to 'boehm-gc/dyn_load.c')
| -rw-r--r-- | boehm-gc/dyn_load.c | 68 |
1 files changed, 52 insertions, 16 deletions
diff --git a/boehm-gc/dyn_load.c b/boehm-gc/dyn_load.c index d3ef572be68..71ad5fb1d78 100644 --- a/boehm-gc/dyn_load.c +++ b/boehm-gc/dyn_load.c @@ -355,10 +355,6 @@ void GC_register_dynamic_libraries() /* Stack mapping; discard */ continue; } - if (start <= datastart && end > datastart && maj_dev != 0) { - /* Main data segment; discard */ - continue; - } # ifdef THREADS if (GC_segment_is_thread_stack(start, end)) continue; # endif @@ -384,6 +380,13 @@ void GC_register_dynamic_libraries() } } +/* We now take care of the main data segment ourselves: */ +GC_bool GC_register_main_static_data() +{ + return FALSE; +} + +# define HAVE_REGISTER_MAIN_STATIC_DATA // // parse_map_entry parses an entry from /proc/self/maps so we can // locate all writable data segments that belong to shared libraries. @@ -469,13 +472,6 @@ static int GC_register_dynlib_callback(info, size, ptr) + sizeof (info->dlpi_phnum)) return -1; - /* Skip the first object - it is the main program. */ - if (*(int *)ptr == 0) - { - *(int *)ptr = 1; - return 0; - } - p = info->dlpi_phdr; for( i = 0; i < (int)(info->dlpi_phnum); ((i++),(p++)) ) { switch( p->p_type ) { @@ -491,6 +487,7 @@ static int GC_register_dynlib_callback(info, size, ptr) } } + * (int *)ptr = 1; /* Signal that we were called */ return 0; } @@ -500,16 +497,31 @@ static int GC_register_dynlib_callback(info, size, ptr) GC_bool GC_register_dynamic_libraries_dl_iterate_phdr() { - int tmp = 0; - if (dl_iterate_phdr) { - dl_iterate_phdr(GC_register_dynlib_callback, &tmp); + int did_something = 0; + dl_iterate_phdr(GC_register_dynlib_callback, &did_something); + if (!did_something) { + /* dl_iterate_phdr may forget the static data segment in */ + /* statically linked executables. */ + GC_add_roots_inner(DATASTART, (char *)(DATAEND), TRUE); +# if defined(DATASTART2) + GC_add_roots_inner(DATASTART2, (char *)(DATAEND2), TRUE); +# endif + } return TRUE; } else { return FALSE; } } +/* Do we need to separately register the main static data segment? */ +GC_bool GC_register_main_static_data() +{ + return (dl_iterate_phdr == 0); +} + +#define HAVE_REGISTER_MAIN_STATIC_DATA + # else /* !LINUX || version(glibc) < 2.2.4 */ /* Dynamic loading code for Linux running ELF. Somewhat tested on @@ -775,10 +787,23 @@ void GC_register_dynamic_libraries() } # endif -# ifndef MSWINCE +# ifdef MSWINCE + /* Do we need to separately register the main static data segment? */ + GC_bool GC_register_main_static_data() + { + return FALSE; + } +# else /* win32 */ extern GC_bool GC_no_win32_dlls; -# endif + + GC_bool GC_register_main_static_data() + { + return GC_no_win32_dlls; + } +# endif /* win32 */ +# define HAVE_REGISTER_MAIN_STATIC_DATA + void GC_register_dynamic_libraries() { MEMORY_BASIC_INFORMATION buf; @@ -1079,4 +1104,15 @@ void GC_register_dynamic_libraries(){} int GC_no_dynamic_loading; #endif /* !PCR */ + #endif /* !DYNAMIC_LOADING */ + +#ifndef HAVE_REGISTER_MAIN_STATIC_DATA + +/* Do we need to separately register the main static data segment? */ +GC_bool GC_register_main_static_data() +{ + return TRUE; +} +#endif /* HAVE_REGISTER_MAIN_STATIC_DATA */ + |