From 4024c42af1814d0301d7172b19114af4aff92915 Mon Sep 17 00:00:00 2001
From: monkuous <84319635+monkuous@users.noreply.github.com>
Date: Sat, 15 Nov 2025 23:19:02 +0100
Subject: [PATCH] kernel: pass AT_PAGESZ on exec

---
 kernel-src/include/kernel/elf.h | 2 ++
 kernel-src/sys/elf.c            | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/kernel-src/include/kernel/elf.h b/kernel-src/include/kernel/elf.h
index 8ff64f01..467081fe 100644
--- a/kernel-src/include/kernel/elf.h
+++ b/kernel-src/include/kernel/elf.h
@@ -27,6 +27,7 @@
 #define AT_PHDR 3
 #define AT_PHENT 4
 #define AT_PHNUM 5
+#define AT_PAGESZ 6
 #define AT_ENTRY 9
 #define AT_SECURE 23
 #define AT_EXECFN 31
@@ -43,6 +44,7 @@ typedef struct {
 	auxv64_t entry;
 	auxv64_t execfn;
 	auxv64_t secure;
+	auxv64_t pagesz;
 	auxv64_t null;
 } auxv64list_t;
 
diff --git a/kernel-src/sys/elf.c b/kernel-src/sys/elf.c
index 484b841d..6d7c142e 100644
--- a/kernel-src/sys/elf.c
+++ b/kernel-src/sys/elf.c
@@ -163,11 +163,13 @@ int elf_load(vnode_t *vnode, void *base, void **entry, char **interpreter, auxv6
 	auxv64->phent.type = AT_PHENT;
 	auxv64->entry.type = AT_ENTRY;
 	auxv64->secure.type = AT_SECURE;
+	auxv64->pagesz.type = AT_PAGESZ;
 
 	auxv64->secure.val = 0; // set later by whoever called elf_load
 	auxv64->phnum.val = header.phcount;
 	auxv64->phent.val = header.phsize;
 	auxv64->entry.val = header.entry + (uintptr_t)base;
+	auxv64->pagesz.val = PAGE_SIZE;
 	*entry = (void *)(header.entry + (uintptr_t)base);
 
 	__assert(header.phsize == sizeof(elfph64_t));