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From: Szabolcs Nagy <nsz@sourceware.org>
To: glibc-cvs@sourceware.org
Subject: [glibc/arm/morello/main] cheri: malloc: Set __always_fail_morecore
Date: Fri,  9 Dec 2022 12:21:40 +0000 (GMT)	[thread overview]
Message-ID: <20221209122140.E5ECC383234E@sourceware.org> (raw)

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=da7a5b5f4df247726806ec7c5ce57d6bf4290a01

commit da7a5b5f4df247726806ec7c5ce57d6bf4290a01
Author: Szabolcs Nagy <szabolcs.nagy@arm.com>
Date:   Mon Dec 5 13:31:54 2022 +0000

    cheri: malloc: Set __always_fail_morecore
    
    Morello linux does not support brk syscall, so fail early in the malloc
    implementation instead of trying to use the syscall which always fails.

Diff:
---
 malloc/arena.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/malloc/arena.c b/malloc/arena.c
index 85cc2ad066..c63cb70f74 100644
--- a/malloc/arena.c
+++ b/malloc/arena.c
@@ -327,6 +327,7 @@ ptmalloc_init (void)
 #endif
 
 #ifdef __CHERI_PURE_CAPABILITY__
+  __always_fail_morecore = true;
   if (TUNABLE_GET_FULL (glibc, mem, cap_narrowing, int32_t, NULL) == 0)
     cap_narrowing_enabled = false;
   else

                 reply	other threads:[~2022-12-09 12:21 UTC|newest]

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