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Introduce #include <cosmo.h> to toolchain users

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This change improves the way internal APIs are being hidden behind the
`COSMO` define. The cosmo.h header will take care of defining that, so
that a separate define statement isn't needed. This change also does a
lot more to define which APIs are standard, and which belong to Cosmo.
This commit is contained in:
Justine Tunney 2023-06-09 18:02:06 -07:00
parent 9b55dbe417
commit 4a59210008
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GPG key ID: BE714B4575D6E328
115 changed files with 699 additions and 422 deletions
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27
libc/runtime/stack.h
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@ -1,18 +1,15 @@
#ifndef COSMOPOLITAN_LIBC_RUNTIME_STACK_H_
#define COSMOPOLITAN_LIBC_RUNTIME_STACK_H_
#include "ape/config.h"
#include "libc/dce.h"
#include "libc/nt/version.h"
#include "libc/runtime/runtime.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
#ifdef COSMO
/**
* Tunes APE stack maximum size.
*
* This defaults to `STACKSIZE`. The bottom-most page will be protected
* to ensure your stack does not magically grow beyond this value. It's
* possible to detect stack overflows, by calling `ShowCrashReports()`.
* Your stack size must be a power of two; the linker will check this.
* The bottom-most page will be protected to ensure your stack does not
* magically grow beyond this value. It's possible to detect stack
* overflows, by calling `ShowCrashReports()`. Your stack size must be a
* power of two; the linker will check this.
*
* If you want to know how much stack your programs needs, then
*
@ -24,7 +21,7 @@
* @see ape/ape.lds
*/
#define STATIC_STACK_SIZE(BYTES) \
STATIC_SYMBOL("ape_stack_memsz", _STACK_STRINGIFY(BYTES) _STACK_EXTRA)
_STACK_SYMBOL("ape_stack_memsz", _STACK_STRINGIFY(BYTES) _STACK_EXTRA)
/**
* Tunes APE stack virtual address.
@ -46,7 +43,7 @@
* @see ape/ape.lds
*/
#define STATIC_STACK_ADDR(ADDR) \
STATIC_SYMBOL("ape_stack_vaddr", _STACK_STRINGIFY(ADDR))
_STACK_SYMBOL("ape_stack_vaddr", _STACK_STRINGIFY(ADDR))
/**
* Makes program stack executable if declared, e.g.
@ -63,11 +60,14 @@
* printf("result %d should be 7\n", func());
* }
*/
#define STATIC_EXEC_STACK() STATIC_SYMBOL("ape_stack_pf", "7")
#define STATIC_EXEC_STACK() _STACK_SYMBOL("ape_stack_pf", "7")
#define _STACK_STRINGIFY(ADDR) #ADDR
#define _STACK_SYMBOL(NAME, VALUE) \
asm(".equ\t" NAME "," VALUE "\n\t" \
".globl\t" NAME)
#if IsAsan()
#ifdef __SANITIZE_ADDRESS__
#define _STACK_EXTRA "*2"
#else
#define _STACK_EXTRA ""
@ -125,7 +125,7 @@ extern char ape_stack_align[] __attribute__((__weak__));
* Returns true if at least `n` bytes of stack are available.
*/
#define HaveStackMemory(n) \
((intptr_t)__builtin_frame_address(0) >= GetStackAddr() + GUARDSIZE + (n))
((intptr_t)__builtin_frame_address(0) >= GetStackAddr() + APE_GUARDSIZE + (n))
forceinline void CheckLargeStackAllocation(void *p, ssize_t n) {
for (; n > 0; n -= 4096) {
@ -133,6 +133,7 @@ forceinline void CheckLargeStackAllocation(void *p, ssize_t n) {
}
}
#endif /* COSMO */
COSMOPOLITAN_C_END_
#endif /* GNU ELF */
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */