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4 Commits (2848289168fbbd9a6855c84ec8fde8929a2b042b)

Author SHA1 Message Date
Richard Henderson 79be812bdb util/selfmap: Use dev_t and ino_t in MapInfo 
Use dev_t instead of a string, and ino_t instead of uint64_t.
The latter is likely to be identical on modern systems but is
more type-correct for usage.

Tested-by: Helge Deller <deller@gmx.de>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2023-09-01 13:34:03 -07:00
Richard Henderson 3ce3dd8ca9 util/selfmap: Rewrite using qemu/interval-tree.h 
We will want to be able to search the set of mappings.
For this patch, the two users iterate the tree in order.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2023-08-08 13:27:17 -07:00
Richard Henderson 53645dc4cb util/selfmap: Discard mapping on error 
From clang-13:
util/selfmap.c:26:21: error: variable 'errors' set but not used \
    [-Werror,-Wunused-but-set-variable]

Quite right of course, but there's no reason not to check errors.

First, incrementing errors is incorrect, because qemu_strtoul
returns an errno not a count -- just or them together so that
we have a non-zero value at the end.

Second, if we have an error, do not add the struct to the list,
but free it instead.

Cc: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2021-07-26 07:06:49 -10:00
Alex Bennée 01ef6b9e4e linux-user: factor out reading of /proc/self/maps 
Unfortunately reading /proc/self/maps is still considered the gold
standard for a process finding out about it's own memory layout. As we
will want this data in other contexts soon factor out the code to read
and parse the data. Rather than just blindly copying the existing
sscanf based code we use a more modern glib version of the parsing
code to make a more general purpose map structure.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200403191150.863-9-alex.bennee@linaro.org>
 2020-04-07 16:19:49 +01:00