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Make more threading improvements

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- ASAN memory morgue is now lockless
- Make C11 atomics header more portable
- Rewrote pthread keys support to be lockless
- Simplify Python's unicode table unpacking code
- Make crash report write(2) closer to being atomic
- Make it possible to strace/ftrace a single thread
- ASAN now checks nul-terminated strings fast and properly
- Windows fork() now restores TLS memory of calling thread
This commit is contained in:
Justine Tunney 2022-11-01 22:36:03 -07:00
parent d7b88734cd
commit e522aa3a07
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GPG key ID: BE714B4575D6E328
189 changed files with 1363 additions and 1217 deletions
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42
libc/vga/tty.greg.c
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@ -19,8 +19,8 @@
#include "libc/fmt/bing.internal.h"
#include "libc/fmt/itoa.h"
#include "libc/intrin/bits.h"
#include "libc/intrin/directmap.internal.h"
#include "libc/intrin/safemacros.internal.h"
#include "libc/runtime/directmap.internal.h"
#include "libc/runtime/pc.internal.h"
#include "libc/str/str.h"
#include "libc/str/thompike.h"
@ -40,12 +40,11 @@
* @see tool/build/lib/pty.c
*/
#define DEFAULT_FG ((TtyCanvasColor) \
{.bgr.r = 0xaa, .bgr.g = 0xaa, .bgr.b = 0xaa, \
.bgr.x = 0xff})
#define DEFAULT_BG ((TtyCanvasColor) \
{.bgr.r = 0, .bgr.g = 0, .bgr.b = 0, .bgr.x = 0xff})
#define CRTPORT 0x3d4
#define DEFAULT_FG \
((TtyCanvasColor){.bgr.r = 0xaa, .bgr.g = 0xaa, .bgr.b = 0xaa, .bgr.x = 0xff})
#define DEFAULT_BG \
((TtyCanvasColor){.bgr.r = 0, .bgr.g = 0, .bgr.b = 0, .bgr.x = 0xff})
#define CRTPORT 0x3d4
static void SetYn(struct Tty *tty, unsigned short yn) {
tty->yn = yn;
@ -70,11 +69,10 @@ static void SetXsFb(struct Tty *tty, unsigned short xsfb) {
static bool SetWcs(struct Tty *tty, unsigned init_flags) {
#ifdef VGA_USE_WCS
struct DirectMap dm;
if (!(init_flags & kTtyAllocWcs))
return false;
if (!(init_flags & kTtyAllocWcs)) return false;
dm = sys_mmap_metal(NULL, Yn(tty) * Xn(tty) * sizeof(wchar_t),
PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS,
-1, 0);
PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1,
0);
if (dm.addr == (void *)-1) {
tty->wcs = NULL;
return false;
@ -160,11 +158,10 @@ static void TtySetType(struct Tty *tty, unsigned char type,
}
}
void _StartTty(struct Tty *tty, unsigned char type,
unsigned short yp, unsigned short xp, unsigned short xsfb,
unsigned short starty, unsigned short startx,
unsigned char yc, unsigned char xc, void *fb,
unsigned init_flags) {
void _StartTty(struct Tty *tty, unsigned char type, unsigned short yp,
unsigned short xp, unsigned short xsfb, unsigned short starty,
unsigned short startx, unsigned char yc, unsigned char xc,
void *fb, unsigned init_flags) {
unsigned short yn, xn, xs = xp * sizeof(TtyCanvasColor);
struct DirectMap dm;
memset(tty, 0, sizeof(struct Tty));
@ -390,8 +387,7 @@ static void TtyTextEraseLineCells(struct Tty *tty, size_t dsty, size_t dstx,
uint8_t attr = TtyGetTextAttr(tty);
struct VgaTextCharCell *ccs = (struct VgaTextCharCell *)tty->canvas;
size_t dst = dsty * Xn(tty) + dstx, i;
for (i = 0; i < n; ++i)
ccs[dst + i] = (struct VgaTextCharCell){' ', attr};
for (i = 0; i < n; ++i) ccs[dst + i] = (struct VgaTextCharCell){' ', attr};
}
void _TtyEraseLineCells(struct Tty *tty, size_t dsty, size_t dstx, size_t n) {
@ -419,8 +415,8 @@ static void TtyTextMoveLineCells(struct Tty *tty, size_t dsty, size_t dstx,
memmove(ccs + dst, ccs + src, n * sizeof(struct VgaTextCharCell));
}
void _TtyMoveLineCells(struct Tty *tty, size_t dsty, size_t dstx,
size_t srcy, size_t srcx, size_t n) {
void _TtyMoveLineCells(struct Tty *tty, size_t dsty, size_t dstx, size_t srcy,
size_t srcx, size_t n) {
size_t xn = Xn(tty);
size_t dst = dsty * xn + dstx, src = srcy * xn + srcx;
tty->movelinecells(tty, dsty, dstx, srcy, srcx, n);
@ -436,8 +432,7 @@ void _TtyMoveLines(struct Tty *tty, size_t dsty, size_t srcy, size_t n) {
++srcy;
}
} else if (dsty > srcy) {
while (n-- != 0)
_TtyMoveLineCells(tty, dsty + n, 0, srcy + n, 0, xn);
while (n-- != 0) _TtyMoveLineCells(tty, dsty + n, 0, srcy + n, 0, xn);
}
}
@ -827,8 +822,7 @@ static TtyCanvasColor TtyMapXtermColor(uint8_t color) {
}
/** Map the given ECMA-48 / VT100 SGR color code to a direct color. */
static TtyCanvasColor TtyMapEcma48Color(uint8_t color)
{
static TtyCanvasColor TtyMapEcma48Color(uint8_t color) {
return TtyMapXtermColor(color % 16);
}