diff options
| author | Colin Cross <ccross@android.com> | 2014-02-14 18:56:23 -0800 |
|---|---|---|
| committer | Elliott Hughes <enh@google.com> | 2014-02-18 12:11:38 -0800 |
| commit | 3d19a8319b9c27af8aa5cfbf495da0fe7fa62d3e (patch) | |
| tree | a51591477e2f6f97ae56ae027d01ca1ff8c302ef /libc/tools/bionic_utils.py | |
| parent | d4bc9ef83b36916d5e63c4c3e4a092381473ea52 (diff) | |
bionic: fix __set_errno for arm64 syscalls that return a 64-bit value
bionic/libc/arch-arm64/syscalls/read.S ends with:
b.hi __set_errno
ret
END(read)
If __set_errno returns int, it will set w0 to 0xFFFFFFFF, which means
x0 is 0x00000000FFFFFFFF. When interpreted as a ssize_t that is
INT_MAX, not -1.
Change __set_errno to return long, which will cause x0 to be set instead
of w0.
Change-Id: I9f9ea0f2995928d2ea240eb2ff7758ecdf0ff412
Diffstat (limited to 'libc/tools/bionic_utils.py')
0 files changed, 0 insertions, 0 deletions