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| author | James Hogan <james.hogan@imgtec.com> | 2014-09-01 22:48:40 +0100 |
|---|---|---|
| committer | Maciej W. Rozycki <macro@codesourcery.com> | 2014-09-03 22:09:10 +0100 |
| commit | ac740bc7a9103a561329ebf7aa05ff31bcab2267 (patch) | |
| tree | 6b3243a23c0c7bddbfcfdbe9eeaa11ee97798f67 /gdb/ChangeLog | |
| parent | 7d793aa9f0986828d5dde8f3811a7adafc38b6b4 (diff) | |
| download | binutils-ac740bc7a9103a561329ebf7aa05ff31bcab2267.zip binutils-ac740bc7a9103a561329ebf7aa05ff31bcab2267.tar.gz binutils-ac740bc7a9103a561329ebf7aa05ff31bcab2267.tar.bz2 | |
Reset errno before PTRACE_PEEKUSER for MIPS DSP_CONTROL
PTRACE_PEEKUSER can return -1, which is usually used to determine whether
a system call has reported an error, so errno must be used alone to
determine whether an error occurred. However errno isn't modified by a
successful system call so it must be reset to a known value (0) before the
syscall call.
Add the missing errno reset when reading the DSP_CONTROL register in the
native MIPS Linux backend and the MIPS gdbserver backend.
gdb/:
* mips-linux-nat.c (mips_linux_read_description): Reset errno to 0
prior to reading DSP_CONTROL with PTRACE_PEEKUSER ptrace call.
gdb/gdbserver/:
* linux-mips-low.c (mips_read_description): Reset errno to 0 prior
to reading DSP_CONTROL with PTRACE_PEEKUSER ptrace call.
Diffstat (limited to 'gdb/ChangeLog')
| -rw-r--r-- | gdb/ChangeLog | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index d416623..ad1a87b 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +2014-09-03 James Hogan <james.hogan@imgtec.com> + + * mips-linux-nat.c (mips_linux_read_description): Reset errno to 0 + prior to reading DSP_CONTROL with PTRACE_PEEKUSER ptrace call. + 2014-09-03 Sergio Durigan Junior <sergiodj@redhat.com> PR python/16699 |