hare

commit bb37ab76b7ed43cc6c67711453283c32aabe2e02
parent 92afe81232ffca34df036cc8d0712b3bad8fecee
Author: Ember Sawady <ecs@d2evs.net>
Date:   Wed,  6 Sep 2023 19:13:45 +0000

rt: run @fini functions in reverse order

they're topologically sorted in the binary, so running them in reverse
ensures that @finis for a module run before the ones for their
dependencies

Fixes: https://todo.sr.ht/~sircmpwn/hare/616
Signed-off-by: Ember Sawady <ecs@d2evs.net>

Diffstat:
M
rt/start+libc.ha
 | 
4
++--
M
rt/start+test+libc.ha
 | 
4
++--
M
rt/start+test.ha
 | 
4
++--
M
rt/start.ha
 | 
4
++--

4 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/rt/start+libc.ha b/rt/start+libc.ha
@@ -22,8 +22,8 @@ export fn init() void = {
 export fn fini() void = {
 	const nfini = (&fini_end: uintptr - &fini_start: uintptr): size
 		/ size(*fn() void);
-	for (let i = 0z; i < nfini; i += 1) {
-		fini_start[i]();
+	for (let i = nfini; i > 0; i -= 1) {
+		fini_start[i - 1]();
 	};
 };
 
diff --git a/rt/start+test+libc.ha b/rt/start+test+libc.ha
@@ -21,8 +21,8 @@ export fn init() void = {
 export fn fini() void = {
 	const nfini = (&fini_end: uintptr - &fini_start: uintptr): size
 		/ size(*fn() void);
-	for (let i = 0z; i < nfini; i += 1) {
-		fini_start[i]();
+	for (let i = nfini; i > 0; i -= 1) {
+		fini_start[i - 1]();
 	};
 };
 
diff --git a/rt/start+test.ha b/rt/start+test.ha
@@ -21,8 +21,8 @@ export fn init() void = {
 export fn fini() void = {
 	const nfini = (&fini_end: uintptr - &fini_start: uintptr): size
 		/ size(*fn() void);
-	for (let i = 0z; i < nfini; i += 1) {
-		fini_start[i]();
+	for (let i = nfini; i > 0; i -= 1) {
+		fini_start[i - 1]();
 	};
 };
 
diff --git a/rt/start.ha b/rt/start.ha
@@ -22,8 +22,8 @@ export fn init() void = {
 export fn fini() void = {
 	const nfini = (&fini_end: uintptr - &fini_start: uintptr): size
 		/ size(*fn() void);
-	for (let i = 0z; i < nfini; i += 1) {
-		fini_start[i]();
+	for (let i = nfini; i > 0; i -= 1) {
+		fini_start[i - 1]();
 	};
 };