diff options
Diffstat (limited to 'csu/initfini.c')
| -rw-r--r-- | csu/initfini.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/csu/initfini.c b/csu/initfini.c index 1da5e2721a..8dcd30a008 100644 --- a/csu/initfini.c +++ b/csu/initfini.c @@ -34,12 +34,22 @@ Cambridge, MA 02139, USA. */ #include <stdlib.h> + +#ifdef HAVE_ELF /* These declarations make the functions go in the right sections when we define them below. GCC syntax does not allow the attribute specifications to be in the function definitions themselves. */ void _init (void) __attribute__ ((section (".init"))); void _fini (void) __attribute__ ((section (".fini"))); +#define SECTION(x) /* Put nothing extra before the defn. */ + +#else +/* Some non-ELF systems support .init and .fini sections, + but the __attribute__ syntax only works for ELF. */ +#define SECTION(x) asm (".section " x); +#endif + /* End the here document containing the initial common code. Then move the output file crtcommon.tmp to crti.s-new and crtn.s-new. */ asm ("\nEOF_common\n\ @@ -48,10 +58,10 @@ cp -f crti.s-new crtn.s-new"); /* Append the .init prologue to crti.s-new. */ asm ("cat >> crti.s-new <<\\EOF.crti.init"); +SECTION (".init") void _init (void) { - (void) &_init; /* Don't optimize out the function! */ /* End the here document containing the .init prologue code. Then fetch the .section directive just written and append that to crtn.s-new, followed by the function epilogue. */ @@ -67,10 +77,10 @@ asm ("\nEOF.crtn.init\ \n\ cat >> crti.s-new <<\\EOF.crti.fini"); +SECTION (".fini") void _fini (void) { - (void) &_fini; /* Don't optimize out the function! */ /* End the here document containing the .fini prologue code. Then fetch the .section directive just written and append that to crtn.s-new, followed by the function epilogue. */ |