diff options
| -rw-r--r-- | src/unexsunos4.c | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/src/unexsunos4.c b/src/unexsunos4.c index c591fb07bdc..e36ddeed9e8 100644 --- a/src/unexsunos4.c +++ b/src/unexsunos4.c @@ -92,7 +92,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ #endif extern char *getenv (); -static unsigned Brk; +static unsigned brk_value; static struct exec nhdr; static int rd_only_len; static long cookie; @@ -145,7 +145,8 @@ unexec (new_name, a_name, bndry, bss_start, entry) */ cookie = time (0); - Brk = sbrk (0); /* Save the break, it is reset to &_end (by ld.so?) */ + /* Save the break, it is reset to &_end (by ld.so?). */ + brk_value = (unsigned) sbrk (0); /* * Round up data start to a page boundary (Lose if not a 2 power!) @@ -163,15 +164,13 @@ unexec (new_name, a_name, bndry, bss_start, entry) initialized = 1; #endif - /* - * Handle new data and bss sizes and optional new entry point. - * No one actually uses bss_start and entry, but tradition compels - * one to support them. - * Could complain if bss_start > Brk, but the caller is *supposed* to know - * what she is doing. - */ - nhdr.a_data = (bss_start ? bss_start : Brk) - N_DATADDR (nhdr); - nhdr.a_bss = bss_start ? Brk - bss_start : 0; + /* Handle new data and bss sizes and optional new entry point. + No one actually uses bss_start and entry, but tradition compels + one to support them. + Could complain if bss_start > brk_value, + but the caller is *supposed* to know what she is doing. */ + nhdr.a_data = (bss_start ? bss_start : brk_value) - N_DATADDR (nhdr); + nhdr.a_bss = bss_start ? brk_value - bss_start : 0; if (entry) nhdr.a_entry = entry; @@ -279,7 +278,7 @@ run_time_remap (progname) return; /* Restore the break */ - brk (Brk); + brk ((char *) brk_value); /* If nothing to remap: we are done! */ if (rd_only_len == 0) @@ -358,7 +357,7 @@ is_it (filename) * should the shared library decide to indirect through * addresses in the data segment not part of __DYNAMIC */ - mmap (data_start, rd_only_len, PROT_READ | PROT_EXEC, + mmap ((char *) data_start, rd_only_len, PROT_READ | PROT_EXEC, MAP_FILE | MAP_SHARED | MAP_FIXED, fd, N_DATOFF (hdr) + data_start - N_DATADDR (hdr)); close (fd); |