diff options
| -rw-r--r-- | tests/tcg/multiarch/arm-compat-semi/semihosting.c | 55 |
1 files changed, 54 insertions, 1 deletions
diff --git a/tests/tcg/multiarch/arm-compat-semi/semihosting.c b/tests/tcg/multiarch/arm-compat-semi/semihosting.c index b3fd16cd12..8627eee3cf 100644 --- a/tests/tcg/multiarch/arm-compat-semi/semihosting.c +++ b/tests/tcg/multiarch/arm-compat-semi/semihosting.c @@ -8,9 +8,13 @@ */ #define SYS_WRITE0 0x04 +#define SYS_HEAPINFO 0x16 #define SYS_REPORTEXC 0x18 #include <stdint.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> #include "semicall.h" int main(int argc, char *argv[argc]) @@ -21,8 +25,57 @@ int main(int argc, char *argv[argc]) uintptr_t exit_block[2] = {0x20026, 0}; uintptr_t exit_code = (uintptr_t) &exit_block; #endif + struct { + void *heap_base; + void *heap_limit; + void *stack_base; + void *stack_limit; + } info; + void *ptr_to_info = (void *) &info; - __semi_call(SYS_WRITE0, (uintptr_t) "Hello World"); + __semi_call(SYS_WRITE0, (uintptr_t) "Checking HeapInfo\n"); + + memset(&info, 0, sizeof(info)); + __semi_call(SYS_HEAPINFO, (uintptr_t) &ptr_to_info); + + if (info.heap_base == NULL || info.heap_limit == NULL) { + printf("null heap: %p -> %p\n", info.heap_base, info.heap_limit); + exit(1); + } + + /* Error if heap base is above limit */ + if ((uintptr_t) info.heap_base >= (uintptr_t) info.heap_limit) { + printf("heap base %p >= heap_limit %p\n", + info.heap_base, info.heap_limit); + exit(2); + } + + if (info.stack_base == NULL || info.stack_limit) { + printf("null stack: %p -> %p\n", info.stack_base, info.stack_limit); + exit(3); + } + + /* check our local variables are indeed inside the reported stack */ + if (ptr_to_info > info.stack_base) { + printf("info appears to be above stack: %p > %p\n", ptr_to_info, + info.stack_base); + exit(4); + } else if (ptr_to_info < info.stack_limit) { + printf("info appears to be outside stack: %p < %p\n", ptr_to_info, + info.stack_limit); + exit(5); + } + + if (ptr_to_info > info.heap_base && ptr_to_info < info.heap_limit) { + printf("info appears to be inside the heap: %p in %p:%p\n", + ptr_to_info, info.heap_base, info.heap_limit); + exit(6); + } + + printf("heap: %p -> %p\n", info.heap_base, info.heap_limit); + printf("stack: %p -> %p\n", info.stack_base, info.stack_limit); + + __semi_call(SYS_WRITE0, (uintptr_t) "Passed HeapInfo checks"); __semi_call(SYS_REPORTEXC, exit_code); /* if we get here we failed */ return -1; |