artemist/mes
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

mescc: Tinycc support: malloc,memcpy.

Browse source 
* mlibc/libc-mes.c (malloc): Rewrite.
* mlibc/libc-mes+tcc.c (memcpy): Implement.
This commit is contained in:
Jan Nieuwenhuizen 2017-07-27 18:51:58 +02:00
parent ba78b78203
commit ab74876131
2 changed files with 8 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
mlibc/libc-mes+tcc.c
View file

@ -148,7 +148,10 @@ longjmp (jmp_buf env, int val)
void * void *
memcpy (void *dest, void const *src, size_t n) memcpy (void *dest, void const *src, size_t n)
{ {
return 0; char* p = dest;
char* q = src;
while (n--) *p++ = *q++;
return dest;
} }
void * void *

7
mlibc/libc-mes.c
View file

@ -311,10 +311,11 @@ char *g_brk = 0;
void * void *
malloc (size_t size) malloc (size_t size)
{ {
if (!g_brk) g_brk = brk (0); if (!g_brk)
g_brk = brk (0);
if (brk (g_brk + size) == -1)
return 0;
char *p = g_brk; char *p = g_brk;
if (size < 0 || brk (g_brk + size) == -1)
return 0;
g_brk += size; g_brk += size;
return p; return p;
} }