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cosmopolitan/libc/mem
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Justine Tunney 1eb6484c9c
Rewrite getcwd() 
This change addresses a bug that was reported in #923 where bash on
Windows behaved strangely. It turned out that our weak linking of
malloc() caused bash's configure script to favor its own getcwd()
function, which is implemented in the most astonishing way, using
opendir() and readdir() to recursively construct the current path.

This change moves getcwd() into LIBC_STDIO so it can strongly link
malloc(). A new __getcwd() function is now introduced, so all the
low-level runtime services can still use the actual system call. It
provides the Linux Kernel API convention across platforms, and is
overall a higher-quality implementation than what we had before.

In the future, we should probably take a closer look into why bash's
getcwd() polyfill wasn't working as intended on Windows, since there
might be a potential opportunity there to improve our readdir() too.
2023-11-02 13:16:42 -07:00
..
_gc_free.c Run clang-format on most sources 2023-04-27 05:44:32 -07:00
alg.h Make improvements 2023-09-06 12:34:59 -07:00
aligned_alloc.c Make improvements 2023-10-03 06:17:16 -07:00
alloca.h Remove some dead code 2023-07-03 02:48:29 -07:00
arraylist.internal.h Fold LIBC_ALG into LIBC_MEM 2022-08-13 08:32:34 -07:00
arraylist2.internal.h Fold LIBC_ALG into LIBC_MEM 2022-08-13 08:32:34 -07:00
bisect.internal.h Fold LIBC_ALG into LIBC_MEM 2022-08-13 08:32:34 -07:00
bsearch.c Clean up some code 2023-10-11 11:45:31 -07:00
bsearch_r.c Clean up some code 2023-10-11 11:45:31 -07:00
bulk_free.c Get LIBC_MEM and LIBC_STDIO building with aarch64 2023-05-10 04:20:47 -07:00
calloc.c Make improvements 2023-10-03 06:17:16 -07:00
critbit0.h Remove old stack code and improve dirstream 2023-08-16 07:54:40 -07:00
critbit0_allprefixed.c Fold LIBC_ALG into LIBC_MEM 2022-08-13 08:32:34 -07:00
critbit0_clear.c Fix small matters and improve sysconf() 2023-08-17 00:32:11 -07:00
critbit0_contains.c Fold LIBC_ALG into LIBC_MEM 2022-08-13 08:32:34 -07:00
critbit0_delete.c Fold LIBC_ALG into LIBC_MEM 2022-08-13 08:32:34 -07:00
critbit0_emplace.c Fix warnings 2023-09-01 20:50:18 -07:00
critbit0_get.c Fold LIBC_ALG into LIBC_MEM 2022-08-13 08:32:34 -07:00
critbit0_insert.c Remove old stack code and improve dirstream 2023-08-16 07:54:40 -07:00
free.c Make improvements 2023-10-03 06:17:16 -07:00
gc.c Make improvements 2023-10-03 06:17:16 -07:00
gc.h Pay off more technical debt 2022-09-12 23:36:56 -07:00
gc.internal.h Pay off more technical debt 2022-09-12 23:36:56 -07:00
heapsort.c Import OpenBSD sorting algorithms 2022-09-06 17:52:26 -07:00
hook.internal.h Get LIBC_MEM and LIBC_STDIO building with aarch64 2023-05-10 04:20:47 -07:00
hook_realloc_in_place.c Make improvements 2023-10-03 06:17:16 -07:00
internal.h Make improvements 2023-09-21 07:30:39 -07:00
mallinfo.c Improve synchronization 2022-04-15 15:31:55 -07:00
malloc.c Make improvements 2023-10-03 06:17:16 -07:00
malloc_inspect_all.c Improve synchronization 2022-04-15 15:31:55 -07:00
malloc_trim.c Get LIBC_MEM and LIBC_STDIO building with aarch64 2023-05-10 04:20:47 -07:00
malloc_usable_size.c Make improvements 2023-10-03 06:17:16 -07:00
mallopt.c Get us closer to building busybox 2023-06-18 04:13:45 -07:00
mem.h Make improvements 2023-09-06 12:34:59 -07:00
mem.mk Make improvements 2023-09-18 21:04:47 -07:00
memalign.c Make improvements 2023-10-03 06:17:16 -07:00
mergesort.c Import OpenBSD sorting algorithms 2022-09-06 17:52:26 -07:00
posix_memalign.c Make improvements 2023-10-03 06:17:16 -07:00
putenv.c Make improvements 2023-09-21 07:30:39 -07:00
pvalloc.c Make improvements 2023-10-03 06:17:16 -07:00
qsort.c Polyfill IPv6 on non-Linux 2022-09-08 06:06:22 -07:00
radix_sort_int32.c Make fatcosmocc good enough to build ncurses 6.4 2023-08-12 22:30:05 -07:00
radix_sort_int64.c Make fatcosmocc good enough to build ncurses 6.4 2023-08-12 22:30:05 -07:00
realloc.c Make improvements 2023-10-03 06:17:16 -07:00
reallocarray.c Make improvements 2023-10-03 06:17:16 -07:00
realpath.c Rewrite getcwd() 2023-11-02 13:16:42 -07:00
reverse.internal.h Fold LIBC_ALG into LIBC_MEM 2022-08-13 08:32:34 -07:00
setenv.c Make improvements 2023-09-21 07:30:39 -07:00
shuffle.internal.h Fold LIBC_ALG into LIBC_MEM 2022-08-13 08:32:34 -07:00
sortedints.c Mint APE Loader v1.5 2023-07-26 13:54:49 -07:00
sortedints.internal.h Make fixes and improvements 2022-10-19 07:19:19 -07:00
strdup.c Make improvements 2023-10-03 06:17:16 -07:00
strndup.c Make improvements 2023-10-03 06:17:16 -07:00
valloc.c Make improvements 2023-10-03 06:17:16 -07:00
wcsdup.c Make improvements 2023-10-03 06:17:16 -07:00