mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-05-23 22:02:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Rewrite ZipOS

Browse source 
This reduces the virtual memory usage of Emacs for me by 30%. We now
have a simpler implementation that uses read(), rather mmap()ing the
whole executable.
This commit is contained in:
Justine Tunney 2023-10-03 07:27:25 -07:00
parent ff77f2a6af
commit b01282e23e
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
21 changed files with 408 additions and 421 deletions
Download patch file Download diff file Expand all files Collapse all files

4
test/libc/calls/unveil_test.c
View file

@ -139,9 +139,9 @@ TEST(unveil, canBeUsedAgainAfterVfork) {
TEST(unveil, rwc_createExecutableFile_isAllowedButCantBeRun) {
SPAWN(fork);
ASSERT_SYS(0, 0, mkdir("folder", 0755));
testlib_extract("/zip/life.elf", "folder/life.elf", 0755);
ASSERT_SYS(0, 0, unveil("folder", "rwc"));
ASSERT_SYS(0, 0, unveil(0, 0));
testlib_extract("/zip/life.elf", "folder/life.elf", 0755);
SPAWN(fork);
ASSERT_SYS(0, 0, stat("folder/life.elf", &st));
ASSERT_SYS(EACCES, -1, execl("folder/life.elf", "folder/life.elf", 0));
@ -152,9 +152,9 @@ TEST(unveil, rwc_createExecutableFile_isAllowedButCantBeRun) {
TEST(unveil, rwcx_createExecutableFile_canAlsoBeRun) {
SPAWN(fork);
ASSERT_SYS(0, 0, mkdir("folder", 0755));
testlib_extract("/zip/life.elf", "folder/life.elf", 0755);
ASSERT_SYS(0, 0, unveil("folder", "rwcx"));
ASSERT_SYS(0, 0, unveil(0, 0));
testlib_extract("/zip/life.elf", "folder/life.elf", 0755);
SPAWN(fork);
ASSERT_SYS(0, 0, stat("folder/life.elf", &st));
execl("folder/life.elf", "folder/life.elf", 0);

10
test/libc/runtime/zipos_test.c
View file

@ -52,7 +52,7 @@ void *Worker(void *arg) {
}
TEST(zipos, test) {
int i, n = 16;
int i, n = 20;
pthread_t *t = gc(malloc(sizeof(pthread_t) * n));
for (i = 0; i < n; ++i) {
ASSERT_SYS(0, 0, pthread_create(t + i, 0, Worker, 0));
@ -86,6 +86,14 @@ TEST(zipos, readPastEof) {
EXPECT_SYS(0, 0, close(3));
}
TEST(zipos, simple) {
char buf[31] = {0};
ASSERT_SYS(0, 3, open("/zip/libc/testlib/hyperion.txt", O_RDONLY));
ASSERT_SYS(0, 30, read(3, buf, 30));
ASSERT_STREQ("The fall of Hyperion - a Dream", buf);
ASSERT_SYS(0, 0, close(3));
}
TEST(zipos_O_DIRECTORY, blocksOpeningOfNormalFiles) {
ASSERT_SYS(ENOTDIR, -1,
open("/zip/libc/testlib/hyperion.txt", O_RDONLY | O_DIRECTORY));