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> compile NEMU

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221220000 张三
Linux zzy 5.15.146.1-microsoft-standard-WSL2 #1 SMP Thu Jan 11 04:09:03 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
 20:43:23 up 2 days, 10:57,  1 user,  load average: 0.55, 0.55, 0.46
This commit is contained in:
tracer-ics2023
2024-09-14 20:43:23 +08:00
committed by zzy
parent e37e121bea
commit 2f30e78edd
1 changed files with 5 additions and 1 deletions
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6
abstract-machine/klib/src/stdlib.c
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@ -29,12 +29,16 @@ int atoi(const char* nptr) {
return x; return x;
} }
static uint8_t* ptr;
void *malloc(size_t size) { void *malloc(size_t size) {
// On native, malloc() will be called during initializaion of C runtime. // On native, malloc() will be called during initializaion of C runtime.
// Therefore do not call panic() here, else it will yield a dead recursion: // Therefore do not call panic() here, else it will yield a dead recursion:
// panic() -> putchar() -> (glibc) -> malloc() -> panic() // panic() -> putchar() -> (glibc) -> malloc() -> panic()
#if !(defined(__ISA_NATIVE__) && defined(__NATIVE_USE_KLIB__)) #if !(defined(__ISA_NATIVE__) && defined(__NATIVE_USE_KLIB__))
panic("Not implemented"); if (ptr == NULL) ptr = heap.start;
// assert(ptr + size <= heap.end && ptr >= heap.start);
ptr += size;
return ptr - size;
#endif #endif
return NULL; return NULL;
} }