buildflags.md: Drop mentions of ppc64

The ppc64 architecture is no longer built.
This commit is contained in:
Florian Weimer 2021-11-15 12:31:16 +01:00
parent 8a2e388e10
commit 92261d7c20

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@ -261,7 +261,7 @@ not), but their selection depends on the architecture:
or thread stacks spill into other regions of memory.) This flag is
fully ABI-compatible and has adds very little run-time overhead, but
is only available on certain architectures (currently aarch64, i386,
ppc64, ppc64le, s390x, x86_64).
ppc64le, s390x, x86_64).
* `-fcf-protection`: Instrument binaries to guard against
ROP/JOP attacks. Used on i686 and x86_64.
* `-m64` and `-m32`: Some GCC builds support both 32-bit and 64-bit in
@ -274,7 +274,7 @@ not), but their selection depends on the architecture:
handlers. It also makes performance and debugging tools more
useful because unwind information is available without having to
install (and load) debugging ienformation.
Asynchronous unwind tables are enabled for aarch64, i686, ppc64,
Asynchronous unwind tables are enabled for aarch64, i686,
ppc64le, s390x, and x86_64. They are not needed on armhfp due to
architectural differences in stack management. On these
architectures, `-fexceptions` (see above) still enables regular
@ -309,7 +309,7 @@ tuning in the `gcc` package. These settings are:
(z13).
* **x86_64**: `-mtune=generic` selects tuning which is expected to
beneficial for a broad range of current CPUs.
* **ppc64** and **aarch64** do not have any architecture-specific tuning.
* **aarch64** does not have any architecture-specific tuning.
# Individual linker flags