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[PULL,6/9] linux-user: Add new flag VERIFY_NONE

Message ID 20230515083113.107056-7-laurent@vivier.eu (mailing list archive)
State New, archived
Headers show
Series [PULL,1/9] linux-user: Emulate /proc/cpuinfo output for riscv | expand

Commit Message

Laurent Vivier May 15, 2023, 8:31 a.m. UTC 
From: Thomas Weißschuh <thomas@t-8ch.de>

This can be used to validate that an address range is mapped but without
being readable or writable.

It will be used by an updated implementation of mincore().

Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20230422100314.1650-2-thomas@t-8ch.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/qemu.h | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index e2e93fbd1d5d..92f9f5af41c7 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -168,6 +168,7 @@  abi_long do_brk(abi_ulong new_brk);
 
 /* user access */
 
+#define VERIFY_NONE  0
 #define VERIFY_READ  PAGE_READ
 #define VERIFY_WRITE (PAGE_READ | PAGE_WRITE)