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| author | Adhemerval Zanella Netto <adhemerval.zanella@linaro.org> | 2023-01-12 10:58:50 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2023-02-01 08:42:11 -0300 |
| commit | 2290cf73cce1292d9345a8183fd29ae3994a9481 (patch) | |
| tree | 293c1361e50d8fc4c6b22c57d35f51521a5c3d83 /sysdeps/unix/sysv/linux/x86_64/clone3.S | |
| parent | 2fe58919a0bfd1064c59120520116237ba818ed3 (diff) | |
| download | glibc-2290cf73cce1292d9345a8183fd29ae3994a9481.tar.gz glibc-2290cf73cce1292d9345a8183fd29ae3994a9481.tar.xz glibc-2290cf73cce1292d9345a8183fd29ae3994a9481.zip | |
Linux: Do not align the stack for __clone3
All internal callers of __clone3 should provide an already aligned stack. Removing the stack alignment in __clone3 is a net gain: it simplifies the internal function contract (mask/unmask signals) along with the arch-specific code. Checked on x86_64-linux-gnu. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'sysdeps/unix/sysv/linux/x86_64/clone3.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/clone3.S | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/x86_64/clone3.S b/sysdeps/unix/sysv/linux/x86_64/clone3.S index bd4a834e46..802d56cbac 100644 --- a/sysdeps/unix/sysv/linux/x86_64/clone3.S +++ b/sysdeps/unix/sysv/linux/x86_64/clone3.S @@ -73,9 +73,6 @@ L(thread_start): the outermost frame obviously. */ xorl %ebp, %ebp - /* Align stack to 16 bytes per the x86-64 psABI. */ - and $-16, %RSP_LP - /* Set up arguments for the function call. */ mov %R8_LP, %RDI_LP /* Argument. */ call *%rdx /* Call function. */ |