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Make build hermetic without shell scripts

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- Fix some minor issues in ar.com
- Have execve() look for `ape` command
- Rewrite NT paths using /c/ rather /??/c:/
- Replace broken GCC symlinks with .sym files
- Rewrite $PATH environment variables on startup
- Make $(APE_NO_MODIFY_SELF) the default bootloader
- Add all build command dependencies to build/bootstrap
- Get the repository mostly building from source on non-Linux
This commit is contained in:
Justine Tunney 2022-05-25 11:31:08 -07:00
parent d44ff6ce1f
commit d230a01222
160 changed files with 2754 additions and 1342 deletions
Download patch file Download diff file Expand all files Collapse all files

52
libc/calls/mkntpath.c
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@ -31,6 +31,10 @@ static inline bool IsSlash(char c) {
return c == '/' || c == '\\';
}
static inline int IsAlpha(int c) {
return ('A' <= c && c <= 'Z') || ('a' <= c && c <= 'z');
}
textwindows static const char *FixNtMagicPath(const char *path,
unsigned flags) {
const struct NtMagicPaths *mp = &kNtMagicPaths;
@ -78,18 +82,51 @@ textwindows int __mkntpath2(const char *path,
*/
char16_t *p;
const char *q;
size_t i, n, m, z;
bool isdospath;
size_t i, n, m, x, z;
if (!path) return efault();
path = FixNtMagicPath(path, flags);
p = path16;
q = path;
if (IsSlash(path[0]) && IsSlash(path[1]) && path[2] == '?' &&
IsSlash(path[3])) {
if (IsSlash(q[0]) && IsAlpha(q[1]) && IsSlash(q[2])) {
z = MIN(32767, PATH_MAX);
// turn "\c\foo" into "\\?\c:\foo"
p[0] = '\\';
p[1] = '\\';
p[2] = '?';
p[3] = '\\';
p[4] = q[1];
p[5] = ':';
p[6] = '\\';
p += 7;
q += 3;
z -= 7;
x = 7;
} else if (IsSlash(q[0]) && IsAlpha(q[1]) && IsSlash(q[2])) {
z = MIN(32767, PATH_MAX);
// turn "c:\foo" into "\\?\c:\foo"
p[0] = '\\';
p[1] = '\\';
p[2] = '?';
p[3] = '\\';
p[4] = q[0];
p[5] = ':';
p[6] = '\\';
p += 7;
q += 3;
z -= 7;
x = 7;
} else if (IsSlash(q[0]) && IsSlash(q[1]) && q[2] == '?' && IsSlash(q[3])) {
z = MIN(32767, PATH_MAX);
x = 0;
} else {
z = MIN(260, PATH_MAX);
x = 0;
}
if (IsSlash(q[0]) && q[1] == 't' && q[2] == 'm' && q[3] == 'p' &&
// turn /tmp into GetTempPath()
if (!x && IsSlash(q[0]) && q[1] == 't' && q[2] == 'm' && q[3] == 'p' &&
(IsSlash(q[4]) || !q[4])) {
m = GetTempPath(z, p);
if (!q[4]) return m;
@ -99,15 +136,20 @@ textwindows int __mkntpath2(const char *path,
} else {
m = 0;
}
// turn utf-8 into utf-16
n = tprecode8to16(p, z, q).ax;
if (n >= z - 1) {
STRACE("path too long for windows: %#s", path);
return enametoolong();
}
// turn slash into backslash
for (i = 0; i < n; ++i) {
if (p[i] == '/') {
p[i] = '\\';
}
}
return m + n;
return x + m + n;
}