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
This commit is contained in:
Justine Tunney 2023-06-03 08:12:13 -07:00
parent 5655c9a4e7
commit 8f522cb702
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GPG key ID: BE714B4575D6E328
116 changed files with 1194 additions and 1025 deletions

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@ -170,6 +170,31 @@
.previous
.endm
// Begins definition of frameless function that calls no functions.
.macro .leafprologue
#if !(defined(TINY) && !defined(__PG__))
#ifdef __x86_64__
push %rbp
mov %rsp,%rbp
#elif defined(__aarch64__)
stp x29,x30,[sp,#-16]!
mov x29,sp
#endif
#endif
.endm
// Ends definition of frameless function that calls no functions.
.macro .leafepilogue
#if !(defined(TINY) && !defined(__PG__))
#ifdef __x86_64__
pop %rbp
#elif defined(__aarch64__)
ldp x29,x30,[sp],#16
#endif
#endif
ret
.endm
// Documents unreachable assembly code.
.macro .unreachable
#if !defined(NDEBUG) && defined(__x86_64__)
@ -390,22 +415,6 @@
.byte 0x0f,0x1f,0105,\endfunc-. # nopl disp8(%rbp)
.endm
// Begins definition of frameless function that calls no functions.
.macro .leafprologue
#if !(defined(TINY) && !defined(__PG__))
push %rbp
mov %rsp,%rbp
#endif
.endm
// Ends definition of frameless function that calls no functions.
.macro .leafepilogue
#if !(defined(TINY) && !defined(__PG__))
pop %rbp
#endif
ret
.endm
// Good alignment for functions where alignment actually helps.
// @note 16-byte
.macro .alignfunc