From: Laurent Vivier <laurent@vivier.eu>
To: qemu-devel@nongnu.org
Cc: Riku Voipio <riku.voipio@iki.fi>,
Laurent Vivier <laurent@vivier.eu>,
Lirong Yuan <yuanzi@google.com>
Subject: [PULL v3 09/16] linux-user: Update TASK_UNMAPPED_BASE for aarch64
Date: Thu, 19 Mar 2020 10:26:20 +0100 [thread overview]
Message-ID: <20200319092627.51487-10-laurent@vivier.eu> (raw)
In-Reply-To: <20200319092627.51487-1-laurent@vivier.eu>
From: Lirong Yuan <yuanzi@google.com>
This change updates TASK_UNMAPPED_BASE (the base address for guest programs) for aarch64. It is needed to allow qemu to work with Thread Sanitizer (TSan), which has specific boundary definitions for memory mappings on different platforms:
https://github.com/llvm/llvm-project/blob/master/compiler-rt/lib/tsan/rtl/tsan_platform.h
Signed-off-by: Lirong Yuan <yuanzi@google.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200313002813.3857-1-yuanzi@google.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
linux-user/mmap.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index 8685f02e7e90..e37803379747 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -184,7 +184,11 @@ static int mmap_frag(abi_ulong real_start,
}
#if HOST_LONG_BITS == 64 && TARGET_ABI_BITS == 64
+#ifdef TARGET_AARCH64
+# define TASK_UNMAPPED_BASE 0x5500000000
+#else
# define TASK_UNMAPPED_BASE (1ul << 38)
+#endif
#else
# define TASK_UNMAPPED_BASE 0x40000000
#endif
--
2.25.1
next prev parent reply other threads:[~2020-03-19 9:30 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-19 9:26 [PULL v3 00/16] Linux user for 5.0 patches Laurent Vivier
2020-03-19 9:26 ` [PULL v3 01/16] target/i386: Renumber EXCP_SYSCALL Laurent Vivier
2020-03-19 9:26 ` [PULL v3 02/16] linux-user/i386: Split out gen_signal Laurent Vivier
2020-03-19 9:26 ` [PULL v3 03/16] linux-user/i386: Emulate x86_64 vsyscalls Laurent Vivier
2020-03-19 9:26 ` [PULL v3 04/16] linux-user: Add x86_64 vsyscall page to /proc/self/maps Laurent Vivier
2020-03-19 9:26 ` [PULL v3 05/16] linux-user: Flush out implementation of gettimeofday Laurent Vivier
2020-03-19 9:26 ` [PULL v3 06/16] linux-user: Add AT_EXECFN auxval Laurent Vivier
2020-03-19 9:26 ` [PULL v3 07/16] linux-user: do prlimit selectively Laurent Vivier
2020-03-19 9:26 ` [PULL v3 08/16] linux-user: fix socket() strace Laurent Vivier
2020-03-19 9:26 ` Laurent Vivier [this message]
2020-03-19 9:26 ` [PULL v3 10/16] linux-user: Protect more syscalls Laurent Vivier
2020-03-19 9:26 ` [PULL v3 11/16] linux-user/syscall: Add support for clock_gettime64/clock_settime64 Laurent Vivier
2020-03-19 9:26 ` [PULL v3 12/16] linux-user/riscv: Update the syscall_nr's to the 5.5 kernel Laurent Vivier
2020-03-19 9:26 ` [PULL v3 13/16] scripts: add a script to generate syscall_nr.h Laurent Vivier
2020-03-19 9:26 ` [PULL v3 14/16] linux-user, aarch64: sync syscall numbers with kernel v5.5 Laurent Vivier
2020-03-19 9:26 ` [PULL v3 15/16] linux-user, nios2: " Laurent Vivier
2020-03-19 9:26 ` [PULL v3 16/16] linux-user, openrisc: " Laurent Vivier
2020-03-19 20:45 ` [PULL v3 00/16] Linux user for 5.0 patches Peter Maydell
2020-03-20 8:21 ` Laurent Vivier
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