Auto-sync with upstream branch master
Upstream commit: 25f7a3c96116a9102df8bf7b04ef160faa32416d
- malloc: make malloc fail with requests larger than PTRDIFF_MAX (BZ#23741)
- powerpc: Fix format issue from 3a16dd780eeba602
- powerpc: fma using builtins
- powerpc: Use generic fabs{f} implementations
- mips: Remove rt_sigreturn usage on context function
- powerpc: Remove rt_sigreturn usage on context function
- support: Add support_capture_subprogram
- stdlib/tst-secure-getenv: handle >64 groups