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linux-user: Fix executable page of /proc/self/maps

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The guest binary and libraries are not always map with the
executable bit in the host process. The guest may read a
/proc/self/maps with no executable address range. The
perm fields should be based on the guest permission inside
Qemu.

Signed-off-by: Nicolas Surbayrole <nsurbayrole@quarkslab.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210308091959.986540-1-nsurbayrole@quarkslab.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Nicolas Surbayrole 2021-03-08 10:19:59 +01:00 committed by Laurent Vivier
parent 3f8d1885e4
commit 08f3a96b33
1 changed files with 3 additions and 3 deletions
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6
linux-user/syscall.c
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@ -7890,9 +7890,9 @@ static int open_self_maps(void *cpu_env, int fd)
count = dprintf(fd, TARGET_ABI_FMT_ptr "-" TARGET_ABI_FMT_ptr count = dprintf(fd, TARGET_ABI_FMT_ptr "-" TARGET_ABI_FMT_ptr
" %c%c%c%c %08" PRIx64 " %s %"PRId64, " %c%c%c%c %08" PRIx64 " %s %"PRId64,
h2g(min), h2g(max - 1) + 1, h2g(min), h2g(max - 1) + 1,
e->is_read ? 'r' : '-', (flags & PAGE_READ) ? 'r' : '-',
e->is_write ? 'w' : '-', (flags & PAGE_WRITE_ORG) ? 'w' : '-',
e->is_exec ? 'x' : '-', (flags & PAGE_EXEC) ? 'x' : '-',
e->is_priv ? 'p' : '-', e->is_priv ? 'p' : '-',
(uint64_t) e->offset, e->dev, e->inode); (uint64_t) e->offset, e->dev, e->inode);
if (path) { if (path) {