tcmalloc: linux_syscall_support: Don't mark %rsp as clobbered in clone

sys_clone doesn't clobber %rsp and gcc warns about the legacy/incorrect
register clobber specification.

gperftools's tcmalloc fixed this in https://github.com/gperftools/gperftools/commit/9e5b1628737c67b4587f937

Bug: 819294
Change-Id: I70fdd20d6a21d8e7a6e9c7d0f45f2932ce1ac58f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3045100
Commit-Queue: Venkatesh Srinivas <venkateshs@chromium.org>
Reviewed-by: Primiano Tucci <primiano@chromium.org>
Cr-Commit-Position: refs/heads/master@{#904653}
NOKEYCHECK=True
GitOrigin-RevId: d9d451fd95061797352d015879b4d7099efdb2a6
1 file changed
tree: 9eb772d5f0cd13de3bc58fad9043f56665c5316c
  1. src/