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Add syscalls to Blinkenlights and fix bugs

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This commit is contained in:
Justine Tunney 2022-05-13 13:31:21 -07:00
parent f6df29cc3d
commit 578cb21591
25 changed files with 187 additions and 108 deletions
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35
libc/str/strsignal.c → libc/str/strsignal.greg.c
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@ -18,6 +18,7 @@
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/bits.h"
#include "libc/fmt/magnumstrs.internal.h"
#include "libc/log/libfatal.internal.h"
#include "libc/macros.internal.h"
#include "libc/str/str.h"
@ -26,7 +27,7 @@ static char g_strsignal[12];
/**
* Returns string describing signal code.
*
* This returns SIGUNKNOWN for 0 which is the empty value. Textual names
* This returns SIGZERO for 0 which is the empty value. Textual names
* should be available for signals 1 through 32. Signals in the range 33
* and 128 are returned as a `SIG%03d` string. Everything else is SIGWUT
*
@ -34,24 +35,36 @@ static char g_strsignal[12];
* @return pointer to static memory that mutates on subsequent calls
* @see sigaction()
*/
char *strsignal(int sig) {
noasan noinstrument char *strsignal(int sig) {
char *p;
const char *s;
strcpy(g_strsignal, "SIG");
p = g_strsignal;
p[0] = 'S';
p[1] = 'I';
p[2] = 'G';
p[3] = 0;
if (sig) {
if ((s = GetMagnumStr(kSignalNames, sig))) {
strcpy(g_strsignal + 3, s);
return g_strsignal;
__stpcpy(p + 3, s);
return p;
}
}
if (!sig) {
strcpy(g_strsignal + 3, "UNKNOWN");
p[3] = 'Z';
p[4] = 'E';
p[5] = 'R';
p[6] = 'O';
p[7] = 0;
} else if (1 <= sig && sig <= 128) {
g_strsignal[3] = '0' + sig / 100;
g_strsignal[4] = '0' + sig / 10 % 10;
g_strsignal[5] = '0' + sig % 10;
g_strsignal[6] = 0;
p[3] = '0' + sig / 100;
p[4] = '0' + sig / 10 % 10;
p[5] = '0' + sig % 10;
p[6] = 0;
} else {
strcpy(g_strsignal + 3, "WUT");
p[3] = 'W';
p[4] = 'U';
p[5] = 'T';
p[6] = 0;
}
return g_strsignal;
}