erts: Change erl_exit into erts_exit

This is mostly a pure refactoring.

Except for the buggy cases when calling erlang:halt() with a positive
integer in the range -(INT_MIN+2) to -INT_MIN that got confused with
ERTS_ABORT_EXIT, ERTS_DUMP_EXIT and ERTS_INTR_EXIT.

Outcome             OLD erl_exit(n, )         NEW erts_exit(n, )
-------             -------------------       -------------------------------------------
exit(Status)        n = -Status <= 0          n = Status >= 0
crashdump+abort     n > 0, ignore n           n = ERTS_ERROR_EXIT < 0

The outcome of the old ERTS_ABORT_EXIT, ERTS_INTR_EXIT and
ERTS_DUMP_EXIT are the same as before (even though their values have
changed).

1 files changed, 7 insertions, 7 deletions

diff --git a/erts/emulator/sys/common/erl_mmap.c b/erts/emulator/sys/common/erl_mmap.c
index 754047829f..4180e65fdc 100644
--- a/erts/emulator/sys/common/erl_mmap.c
+++ b/erts/emulator/sys/common/erl_mmap.c
@@ -1334,7 +1334,7 @@ os_unreserve_physical(char *ptr, UWord size)
     void *res = mmap((void *) ptr, (size_t) size, ERTS_MMAP_UNRESERVE_PROT,
 		     ERTS_MMAP_UNRESERVE_FLAGS, ERTS_MMAP_FD, 0);
     if (res == (void *) MAP_FAILED)
-	erl_exit(ERTS_ABORT_EXIT, "Failed to unreserve memory");
+	erts_exit(ERTS_ABORT_EXIT, "Failed to unreserve memory");
 }
 
 static void *
@@ -2126,7 +2126,7 @@ erts_mmap_init(ErtsMMapInit *init)
 #endif
     erts_page_inv_mask = pagesize - 1;
     if (pagesize & erts_page_inv_mask)
-	erl_exit(-1, "erts_mmap: Invalid pagesize: %bpu\n",
+	erts_exit(1, "erts_mmap: Invalid pagesize: %bpu\n",
 		 pagesize);
 
     ERTS_MMAP_OP_RINGBUF_INIT();
@@ -2140,7 +2140,7 @@ erts_mmap_init(ErtsMMapInit *init)
 #if HAVE_MMAP && !defined(MAP_ANON)
     mmap_state.mmap_fd = open("/dev/zero", O_RDWR);
     if (mmap_state.mmap_fd < 0)
-	erl_exit(-1, "erts_mmap: Failed to open /dev/zero\n");
+	erts_exit(1, "erts_mmap: Failed to open /dev/zero\n");
 #endif
 
     erts_smp_mtx_init(&mmap_state.mtx, "erts_mmap");
@@ -2155,7 +2155,7 @@ erts_mmap_init(ErtsMMapInit *init)
 	sz = end - ptr;
 	start = os_mmap_virtual(ptr, sz);
 	if (!start || start > ptr || start >= end)
-	    erl_exit(-1,
+	    erts_exit(1,
 		     "erts_mmap: Failed to create virtual range for super carrier\n");
 	sz = start - ptr;
 	if (sz)
@@ -2193,7 +2193,7 @@ erts_mmap_init(ErtsMMapInit *init)
 	    start = os_mmap(NULL, sz, 1);
 	}
 	if (!start)
-	    erl_exit(-1,
+	    erts_exit(1,
 		     "erts_mmap: Failed to create super carrier of size %bpu MB\n",
 		     init->scs/1024/1024);
 	end = start + sz;
@@ -2242,7 +2242,7 @@ erts_mmap_init(ErtsMMapInit *init)
 	if ((desc_size
 	     + ERTS_SUPERALIGNED_SIZE
 	     + ERTS_PAGEALIGNED_SIZE) > end - start)
-	    erl_exit(-1, "erts_mmap: No space for segments in super carrier\n");
+	    erts_exit(1, "erts_mmap: No space for segments in super carrier\n");
 
 	mmap_state.sa.bot = start;
 	mmap_state.sa.bot += desc_size;
@@ -2280,7 +2280,7 @@ erts_mmap_init(ErtsMMapInit *init)
 	 */
 #ifdef ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION
 	if (virtual_map && !os_reserve_physical(start, mmap_state.sa.bot - start))
-	    erl_exit(-1, "erts_mmap: Failed to reserve physical memory for descriptors\n");
+	    erts_exit(1, "erts_mmap: Failed to reserve physical memory for descriptors\n");
 #endif
 	mmap_state.desc.unused_start = start;
 	mmap_state.desc.unused_end = mmap_state.sa.bot;