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Make improvements
This change progresses our AARCH64 support: - The AARCH64 build and tests are now passing - Add 128-bit floating-point support to printf() - Fix clone() so it initializes cosmo's x28 TLS register - Fix TLS memory layout issue with aarch64 _Alignas vars - Revamp microbenchmarking tools so they work on aarch64 - Make some subtle improvements to aarch64 crash reporting - Make kisdangerous() memory checks more accurate on aarch64 - Remove sys_open() since it's not available on Linux AARCH64 This change makes general improvements to Cosmo and Redbean: - Introduce GetHostIsa() function in Redbean - You can now feature check using pledge(0, 0) - You can now feature check using unveil("",0) - Refactor some more x86-specific asm comments - Refactor and write docs for some libm functions - Make the mmap() API behave more similar to Linux - Fix WIFSIGNALED() which wrongly returned true for zero - Rename some obscure cosmo keywords from noFOO to dontFOO
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116 changed files with 1194 additions and 1025 deletions
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@ -170,6 +170,31 @@
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.previous
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.endm
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// Begins definition of frameless function that calls no functions.
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.macro .leafprologue
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#if !(defined(TINY) && !defined(__PG__))
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#ifdef __x86_64__
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push %rbp
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mov %rsp,%rbp
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#elif defined(__aarch64__)
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stp x29,x30,[sp,#-16]!
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mov x29,sp
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#endif
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#endif
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.endm
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// Ends definition of frameless function that calls no functions.
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.macro .leafepilogue
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#if !(defined(TINY) && !defined(__PG__))
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#ifdef __x86_64__
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pop %rbp
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#elif defined(__aarch64__)
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ldp x29,x30,[sp],#16
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#endif
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#endif
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ret
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.endm
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// Documents unreachable assembly code.
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.macro .unreachable
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#if !defined(NDEBUG) && defined(__x86_64__)
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.byte 0x0f,0x1f,0105,\endfunc-. # nopl disp8(%rbp)
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.endm
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// Begins definition of frameless function that calls no functions.
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.macro .leafprologue
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#if !(defined(TINY) && !defined(__PG__))
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push %rbp
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mov %rsp,%rbp
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#endif
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.endm
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// Ends definition of frameless function that calls no functions.
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.macro .leafepilogue
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#if !(defined(TINY) && !defined(__PG__))
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pop %rbp
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#endif
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ret
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.endm
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// Good alignment for functions where alignment actually helps.
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// @note 16-byte
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.macro .alignfunc
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