Differences From
Artifact [cc3bf9e501]:
- File
arch/posix/errnos
— part of check-in
[e50a476efe]
at
2019-08-22 02:52:20
on branch trunk
— removed sneaky segfault in x86-64 syscall fn where %r8 (the register that contains the pointer to the syscall arguments from the C syscall wrapper, which need to be copied into the correct registers before the kernel is invoked) gets overwritten if the syscall valency > 5, because of overlapping ccall and syscall ABI argument registers - r8 is clobbered by argument 5 and any further attempts to use it as a ptr segfault at best. also modified the report function so that it immediate cancels compilation if a sub-process reports failure. changed allocator function signatures so they can return a condition code if the kernel reports an error; updated example code so it compiles and runs without fault.
(user:
lexi,
size: 120)
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5 5 ENOSPC
6 6 EDQUOT
7 7 EIO
8 8 EAGAIN
9 9 EFBIG
10 10 EINTR
11 11 EDESTADDRREQ
12 +EACCES
13 +EMFILE
14 +ENODEV
15 +ENOMEM
16 +ENXIO
17 +EOVERFLOW