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Only compile the __go_ptrace varargs shim on Linux to avoid compilation
failures on some other platforms. The C ptrace function is not entirely
portable (e.g., NetBSD has `int data` instead of `void* data`), and so
far Linux is the only platform that needs the varargs shim.
Additionally, make the types in the ptrace and raw_ptrace function
declarations match. This makes it more clear that the only difference
between the two is that calls via the former are allowed to block while
calls via the latter are not.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/263517
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Make the types of the addr and data arguments in the __go_ptrace shim
match the types declared in Go and the types declared by the C ptrace
function, i.e., void*. This avoids a warning about an implicit
int-to-pointer cast on some platforms.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/262340
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AIX ptrace syscalls doesn't have the same semantic than the glibc one.
The syscall package is already handling it correctly so disable the new
__go_ptrace C function for AIX.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/256777
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ptrace is actually declared as a variadic function. On ppc64le
the ABI requires to the caller to allocate space for the parameters
and allows the caller to modify them.
On ppc64le, depending on how and what version of GCC is used,
it will save to parameter save area. This happened to clobber
a saved LR, and caused syscall.TestExecPtrace to fail with a timeout
when the tracee segfaults, and waits for the parent process to inspect.
Wrap this function to avoid directly calling glibc's ptrace from go.
Fixes golang/go#36698
Fixes go/92567
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/254755
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Since aix/ppc64 has been added to GC toolchain, a mix between new and
old files were created in gcc toolchain.
This commit corrects this merge for aix/ppc64 and aix/ppc.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/167658
From-SVN: r269797
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Fixes Solaris build.
Reviewed-on: https://go-review.googlesource.com/c/162885
From-SVN: r268940
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Compiling with LTO revealed a number of cases in the runtime and
standard library where C and Go disagreed about the type of an object or
function (or where Go and code generated by the compiler disagreed). In
all cases the underlying representation was the same (e.g., uintptr vs.
void*), so this wasn't causing actual problems, but it did result in a
number of annoying warnings when compiling with LTO.
Reviewed-on: https://go-review.googlesource.com/c/160700
From-SVN: r268923
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Only build net/hook_cloexec.go on GNU/Linux and FreeBSD, because those
are the only systems with accept4.
Add syscall/libcall_bsd.go to define sendfile for *BSD and Solaris.
Revert tcpsockopt_solaris.go back to the earlier version, so that it
works on Solaris 10.
Always pass the address of a Pid_t value to TIOCGPGRP and TIOCSPGRP.
Include <unistd.h> in runtime/go-varargs.c.
Reviewed-on: https://go-review.googlesource.com/16719
From-SVN: r229880
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It is not needed due to the removal of the ctx field.
Reviewed-on: https://go-review.googlesource.com/16525
From-SVN: r229616
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syscall)
PR go/67874
net, runtime: Call C library fcntl function rather than syscall.Syscall.
Not all systems define a fcntl syscall; some only have fcntl64.
Fixes GCC PR go/67874.
Reviewed-on: https://go-review.googlesource.com/15497
From-SVN: r228576
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The next revision, 19185, renames several runtime files, and
will be handled in a separate change.
From-SVN: r211328
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From-SVN: r205321
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