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Graduate some clock_gettime() constants to #define

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- CLOCK_THREAD_CPUTIME_ID
- CLOCK_PROCESS_CPUTIME_ID

Cosmo now supports the above constants universally across supported OSes
therefore it's now safe to let programs detect their presence w/ #ifdefs
This commit is contained in:
Justine Tunney 2024-07-22 07:14:35 -07:00
parent c83ec5fdd9
commit 3de6632be6
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4 changed files with 8 additions and 7 deletions
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4
ape/specification.md
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@ -402,8 +402,8 @@ arises in the fact that our Linux-flavored GCC and Clang toolchains
producing TLS instructions that use the %fs convention.
To solve these challenges, the `cosmocc` compiler will rewrite binary
objects after they've been compiled by GCC, so that `%gs` register is
used, rather than `%fs`. Morphing x86-64 binaries after they've been
objects after they've been compiled by GCC, so that the `%gs` register
is used, rather than `%fs`. Morphing x86-64 binaries after they've been
compiled is normally difficult, due to the complexity of the machine
instruction language. However GCC provides `-mno-tls-direct-seg-refs`
which greatly reduces the complexity of this task. This flag forgoes