mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-07-02 17:28:30 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Add Linux ptrace() tutorial

Browse source
This commit is contained in:
Justine Tunney 2022-03-24 08:00:21 -07:00
parent 98909b1391
commit 3b9e66ecba
14 changed files with 1290 additions and 23 deletions
Download patch file Download diff file Expand all files Collapse all files

21
libc/intrin/kprintf.greg.c
View file

@ -468,6 +468,7 @@ privileged static size_t kformat(char *b, size_t n, const char *fmt, va_list va,
if (cols) --cols; /* end quote */
}
goto EmitChar;
case 'm':
if (!(x = errno) && sign == ' ' &&
(!IsWindows() || !__imp_GetLastError())) {
@ -479,7 +480,10 @@ privileged static size_t kformat(char *b, size_t n, const char *fmt, va_list va,
} else {
goto FormatDecimal;
}
case 'n':
// nonstandard %n specifier
// used to print newlines that work in raw terminal modes
if (__nomultics) {
if (p < e) *p = '\r';
++p;
@ -487,13 +491,18 @@ privileged static size_t kformat(char *b, size_t n, const char *fmt, va_list va,
if (p < e) *p = '\n';
++p;
break;
case 'r':
// undocumented %r specifier
// used for good carriage return
// helps integrate loggers with repls
if (!__replmode) {
break;
} else {
s = "\r\033[K";
goto FormatString;
}
case 'S':
c = 's';
type = 1;
@ -695,10 +704,12 @@ privileged static size_t kformat(char *b, size_t n, const char *fmt, va_list va,
privileged size_t ksnprintf(char *b, size_t n, const char *fmt, ...) {
size_t m;
va_list v;
struct Timestamps t = {0};
struct Timestamps t;
t = kenter();
va_start(v, fmt);
m = kformat(b, n, fmt, v, t);
va_end(v);
kleave(t);
return m;
}
@ -713,8 +724,12 @@ privileged size_t ksnprintf(char *b, size_t n, const char *fmt, ...) {
* @vforksafe
*/
privileged size_t kvsnprintf(char *b, size_t n, const char *fmt, va_list v) {
struct Timestamps t = {0};
return kformat(b, n, fmt, v, t);
size_t m;
struct Timestamps t;
t = kenter();
m = kformat(b, n, fmt, v, t);
kleave(t);
return m;
}
/**