mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
synced 2026-02-04 02:18:37 +00:00
6af183ac21
- when recording the non-redirected address in guest_NRADDR, also snapshot the current R2 value, as that will be needed to run the original safely - As a consequence, the original-function information extracted by VALGRIND_GET_ORIG_FN is different on ppc64-linux (2 words) from all other platforms (1 word). So change the type of it from void* to a new type OrigFn which can be defined differently for each platform. - Change the CALL_FN_* macros for ppc64-linux to save/restore R2 values appropriately. - ppc64-linux: detect overflow/underflow of the redirect stack and bring Valgrind to a halt if this happens - Update VG_CLREQ_SZB for ppc32/64 (was out of date). git-svn-id: svn://svn.valgrind.org/valgrind/trunk@5569
156 lines
3.6 KiB
C
156 lines
3.6 KiB
C
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#include <stdlib.h>
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#include <stdio.h>
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#include "valgrind.h"
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/* Program that checks all numbers of args (0 through 12) work for
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wrapping. Also calls originals which trash all the iregs in an
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attempt to shake out any problems caused by insufficient saving of
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caller-save registers around the hidden call instruction. */
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typedef unsigned int UInt;
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#define ROL(_x,n) (((_x) << n) | ((UInt)(_x)) >> ((8*sizeof(UInt)-n)))
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#define TRASH_IREGS(_rlval, _vec) \
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do { \
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UInt* vec = (_vec); \
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/* x86 spills for v > 4, amd64 for v > 12. */ \
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UInt i, sum = 0; \
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UInt v1 = vec[1-1]; \
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UInt v2 = vec[2-1]; \
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UInt v3 = vec[3-1]; \
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UInt v4 = vec[4-1]; \
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UInt v5 = vec[5-1]; \
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UInt v6 = vec[6-1]; \
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UInt v7 = vec[7-1]; \
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UInt v8 = vec[8-1]; \
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UInt v9 = vec[9-1]; \
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UInt v10 = vec[10-1]; \
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UInt v11 = vec[11-1]; \
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UInt v12 = vec[12-1]; \
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for (i = 0; i < 50; i++) { \
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v1 = ROL(v1,1); \
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v2 = ROL(v2,2); \
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v3 = ROL(v3,3); \
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v4 = ROL(v4,4); \
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v5 = ROL(v5,5); \
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v6 = ROL(v6,6); \
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v7 = ROL(v7,7); \
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v8 = ROL(v8,8); \
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v9 = ROL(v9,9); \
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v10 = ROL(v10,10); \
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v11 = ROL(v11,11); \
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v12 = ROL(v12,12); \
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sum ^= (v1-v2); \
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sum ^= (v1-v3); \
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sum ^= (v1-v4); \
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sum ^= (v1-v5); \
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sum ^= (v1-v6); \
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sum ^= (v1-v7); \
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sum ^= (v1-v8); \
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sum ^= (v1-v9); \
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sum ^= (v1-v10); \
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sum ^= (v1-v11); \
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sum ^= (v1-v12); \
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} \
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_rlval = sum; \
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} while (0)
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/* --------------- 0 --------------- */
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UInt fn_0 ( void )
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{
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UInt r;
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UInt* words = calloc(200, sizeof(UInt));
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TRASH_IREGS(r, words);
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free(words);
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return r;
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}
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UInt I_WRAP_SONAME_FNNAME_ZU(NONE,fn_0) ( UInt a1 )
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{
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UInt r;
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OrigFn fn;
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VALGRIND_GET_ORIG_FN(fn);
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printf("fn_0 wrapper pre ()\n");
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CALL_FN_W_v(r, fn);
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printf("fn_0 wrapper post1 = %d\n", (int)r);
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CALL_FN_v_v(fn);
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printf("fn_0 wrapper post2 = %d\n", (int)r);
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return r;
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}
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/* --------------- 1 --------------- */
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UInt fn_1 ( UInt a1 )
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{
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UInt r;
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UInt* words = calloc(200, sizeof(UInt));
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words[1-1] = a1;
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TRASH_IREGS(r, words);
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free(words);
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return r;
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}
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UInt I_WRAP_SONAME_FNNAME_ZU(NONE,fn_1) ( UInt a1 )
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{
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UInt r;
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OrigFn fn;
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VALGRIND_GET_ORIG_FN(fn);
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printf("fn_1 wrapper pre ( %d )\n", (int)a1);
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CALL_FN_W_W(r, fn, a1);
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printf("fn_1 wrapper post1 = %d\n", (int)r);
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CALL_FN_v_W(fn, a1);
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printf("fn_1 wrapper post2 = %d\n", (int)r);
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return r;
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}
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/* --------------- 2 --------------- */
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UInt fn_2 ( UInt a1, UInt a2 )
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{
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UInt r;
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UInt* words = calloc(200, sizeof(UInt));
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words[1-1] = a1;
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words[2-1] = a2;
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TRASH_IREGS(r, words);
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free(words);
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return r;
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}
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UInt I_WRAP_SONAME_FNNAME_ZU(NONE,fn_2) ( UInt a1, UInt a2 )
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{
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UInt r;
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OrigFn fn;
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VALGRIND_GET_ORIG_FN(fn);
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printf("fn_2 wrapper pre ( %d, %d )\n", (int)a1, (int)a2);
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CALL_FN_W_WW(r, fn, a1, a2);
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printf("fn_2 wrapper post1 = %d\n", (int)r);
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CALL_FN_v_WW(fn, a1, a2);
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printf("fn_2 wrapper post2 = %d\n", (int)r);
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return r;
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}
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/* --------------- main --------------- */
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int main ( void )
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{
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UInt w;
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printf("fn_0 ...\n");
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w = fn_0();
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printf(" ... %d\n\n", (int)w);
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printf("fn_1 ...\n");
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w = fn_1(42);
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printf(" ... %d\n\n", (int)w);
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printf("fn_2 ...\n");
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w = fn_2(42,43);
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printf(" ... %d\n\n", (int)w);
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return 0;
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}
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