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| author | Andrew Waterman <waterman@s144.Millennium.Berkeley.EDU> | 2011-05-19 15:28:26 -0700 |
|---|---|---|
| committer | Andrew Waterman <waterman@s144.Millennium.Berkeley.EDU> | 2011-05-19 15:28:26 -0700 |
| commit | be22e4abd5fd8dad83068744a0d1497d50a2806c (patch) | |
| tree | 41e7e210dd9f8e0dc35b7da36eb4f483d19734f7 /pk/syscall.c | |
| parent | 92a8f05f5a2081deb086ad478c3ecbfd4e649002 (diff) | |
| download | pk-be22e4abd5fd8dad83068744a0d1497d50a2806c.zip pk-be22e4abd5fd8dad83068744a0d1497d50a2806c.tar.gz pk-be22e4abd5fd8dad83068744a0d1497d50a2806c.tar.bz2 | |
[pk] made PK smaller
Diffstat (limited to 'pk/syscall.c')
| -rw-r--r-- | pk/syscall.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/pk/syscall.c b/pk/syscall.c index 9482378..85c853b 100644 --- a/pk/syscall.c +++ b/pk/syscall.c @@ -2,6 +2,7 @@ #include <string.h> #include <errno.h> #include "pk.h" +#include "pcr.h" #include "file.h" #include "frontend.h" @@ -92,6 +93,13 @@ sysret_t sys_unlink(const char* name, size_t len) return frontend_syscall(SYS_unlink,(long)name,len,0,0); } +sysret_t sys_brk(size_t pos) +{ + if(pos > (mfpcr(PCR_MEMSIZE) << MEMSIZE_SHIFT)) + return (sysret_t){-1, ENOMEM}; + return (sysret_t){0,0}; +} + sysret_t syscall(long a0, long a1, long a2, long a3, long n) { const static void* syscall_table[] = { @@ -106,6 +114,7 @@ sysret_t syscall(long a0, long a1, long a2, long a3, long n) [SYS_lstat] = sys_lstat, [SYS_link] = sys_link, [SYS_unlink] = sys_unlink, + [SYS_brk] = sys_brk, }; if(n >= ARRAY_SIZE(syscall_table) || !syscall_table[n]) |