mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-07-25 12:00:31 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Get Cosmopolitan into releasable state

Browse source 
A new rollup tool now exists for flattening out the headers in a way
that works better for our purposes than cpp. A lot of the API clutter
has been removed. APIs that aren't a sure thing in terms of general
recommendation are now marked internal.

There's now a smoke test for the amalgamation archive and gigantic
header file. So we can now guarantee you can use this project on the
easiest difficulty setting without the gigantic repository.

A website is being created, which is currently a work in progress:
https://justine.storage.googleapis.com/cosmopolitan/index.html
This commit is contained in:
Justine Tunney 2020-11-25 08:19:00 -08:00
parent dba7552c1e
commit ea0b5d9d1c
775 changed files with 6864 additions and 3963 deletions
Download patch file Download diff file Expand all files Collapse all files

56
libc/log/gdb.h
View file

@ -1,12 +1,20 @@
#ifndef COSMOPOLITAN_LIBC_LOG_GDB_H_
#define COSMOPOLITAN_LIBC_LOG_GDB_H_
#include "libc/calls/calls.h"
#include "libc/runtime/missioncritical.h"
#include "libc/calls/wait4.h"
#include "libc/sysv/consts/nr.h"
#include "libc/sysv/consts/w.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
/**
* @fileoverview GDB Attach Support Code.
*
* The goal of these macros is to make the backtrace into the failing
* code as short as possible. It also helps avoid GDB getting confused
* about how we don't use its readability destroying unwind directives.
*/
extern volatile int g_gdbsync;
int gdbexec(const char *);
@ -15,21 +23,37 @@ int attachdebugger(intptr_t);
#define attachdebugger(CONTINUE_TO_ADDR) /* shorten backtraces */ \
SYNCHRONIZE_DEBUGGER((attachdebugger)(CONTINUE_TO_ADDR))
#define SYNCHRONIZE_DEBUGGER(PID) \
({ \
int Rc, Pid = (PID); \
if (Pid != -1) { \
while ((Rc = WAIT4(Pid, NULL, WNOHANG, NULL)) == 0) { \
if (g_gdbsync) { \
g_gdbsync = 0; \
if (Rc > 0) Pid = 0; \
break; \
} else { \
SCHED_YIELD(); \
} \
} \
} \
Pid; \
#define SYNCHRONIZE_DEBUGGER(PID) \
({ \
int Rc, Pid = (PID); \
if (Pid != -1) { \
while ((Rc = __inline_wait4(Pid, NULL, WNOHANG, NULL)) == 0) { \
if (g_gdbsync) { \
g_gdbsync = 0; \
if (Rc > 0) Pid = 0; \
break; \
} else { \
sched_yield(); \
} \
} \
} \
Pid; \
})
#define __inline_wait4(PID, OPT_OUT_WSTATUS, OPTIONS, OPT_OUT_RUSAGE) \
({ \
int64_t WaAx; \
if (!IsWindows()) { \
register void *Reg10 asm("r10") = (OPT_OUT_RUSAGE); \
asm volatile("syscall" \
: "=a"(WaAx) \
: "0"(__NR_wait4), "D"(PID), "S"(OPT_OUT_WSTATUS), \
"d"(OPTIONS), "r"(Reg10) \
: "rcx", "r11", "cc", "memory"); \
} else { \
WaAx = wait4$nt(PID, OPT_OUT_WSTATUS, OPTIONS, OPT_OUT_RUSAGE); \
} \
WaAx; \
})
COSMOPOLITAN_C_END_