2012-06-08 00:08:12 +02:00
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From eb42dbe8f2c478276128622b3fe1125e4cd13759 Mon Sep 17 00:00:00 2001
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2012-05-31 19:37:49 +02:00
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From: Alexander Graf <agraf@suse.de>
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Date: Wed, 30 May 2012 14:40:47 +0200
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Subject: [PATCH] linux-user: fix multi-threaded /proc/self/maps
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When reading our faked /proc/self/maps from a secondary thread,
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we get an invalid stack entry. This is because ts->stack_base is not
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initialized in non-primary threads.
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However, ts->info is, and the stack layout information we're looking
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for is there too. So let's use that one instead!
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Signed-off-by: Alexander Graf <agraf@suse.de>
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---
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linux-user/syscall.c | 4 ++--
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1 files changed, 2 insertions(+), 2 deletions(-)
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diff --git a/linux-user/syscall.c b/linux-user/syscall.c
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index 39d02f8..06408bd 100644
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--- a/linux-user/syscall.c
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+++ b/linux-user/syscall.c
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@@ -4920,8 +4920,8 @@ static int open_self_maps(void *cpu_env, int fd)
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#if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
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dprintf(fd, "%08llx-%08llx rw-p %08llx 00:00 0 [stack]\n",
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(unsigned long long)ts->info->stack_limit,
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- (unsigned long long)(ts->stack_base + (TARGET_PAGE_SIZE - 1))
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- & TARGET_PAGE_MASK,
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+ (unsigned long long)(ts->info->start_stack +
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+ (TARGET_PAGE_SIZE - 1)) & TARGET_PAGE_MASK,
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(unsigned long long)0);
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#endif
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