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plt-findfre-1.c revision 1.1.1.1 
      1 /* plt-findfre-1.c -- Test for sframe_find_fre for SFRAME_FDE_TYPE_PCMASK.
      2 
      3    Copyright (C) 2023-2024 Free Software Foundation, Inc.
      4 
      5    This program is free software; you can redistribute it and/or modify
      6    it under the terms of the GNU General Public License as published by
      7    the Free Software Foundation; either version 3 of the License, or
      8    (at your option) any later version.
      9 
     10    This program is distributed in the hope that it will be useful,
     11    but WITHOUT ANY WARRANTY; without even the implied warranty of
     12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     13    GNU General Public License for more details.
     14 
     15    You should have received a copy of the GNU General Public License
     16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
     17 
     18 #include "config.h"
     19 
     20 #include <stdlib.h>
     21 #include <string.h>
     22 #include <sys/stat.h>
     23 
     24 #include "sframe-api.h"
     25 
     26 /* DejaGnu should not use gnulib's vsnprintf replacement here.  */
     27 #undef vsnprintf
     28 #include <dejagnu.h>
     29 
     30 static int
     31 add_plt_fde1 (sframe_encoder_ctx *ectx, int idx)
     32 {
     33   int i, err;
     34   /* A contiguous block containing 3 FREs.  The start_ip_offset must remain
     35      less than 16 bytes.  */
     36   sframe_frame_row_entry fres[]
     37     = { {0x0, {0x1, 0, 0}, 0x3},
     38 	{0x6, {0x2, 0xf0, 0}, 0x5},
     39 	{0xc, {0x3, 0xf0, 0}, 0x4}
     40       };
     41 
     42   unsigned char finfo = sframe_fde_create_func_info (SFRAME_FRE_TYPE_ADDR1,
     43 						     SFRAME_FDE_TYPE_PCMASK);
     44   /* 5 pltN entries of 16 bytes each.  */
     45   err = sframe_encoder_add_funcdesc_v2 (ectx, 0x1000, 16*5, finfo, 16, 3);
     46   if (err == -1)
     47     return err;
     48 
     49   for (i = 0; i < 3; i++)
     50     if (sframe_encoder_add_fre (ectx, idx, fres+i) == SFRAME_ERR)
     51       return -1;
     52 
     53   return 0;
     54 }
     55 
     56 int main (void)
     57 {
     58   sframe_encoder_ctx *ectx;
     59   sframe_decoder_ctx *dctx;
     60   sframe_frame_row_entry frep;
     61   char *sframe_buf;
     62   size_t sf_size;
     63   int err = 0;
     64   unsigned int fde_cnt = 0;
     65 
     66 #define TEST(name, cond)                                                      \
     67   do                                                                          \
     68     {                                                                         \
     69       if (cond)                                                               \
     70 	pass (name);                                                          \
     71       else                                                                    \
     72 	fail (name);                                                          \
     73     }                                                                         \
     74     while (0)
     75 
     76   ectx = sframe_encode (SFRAME_VERSION, 0, SFRAME_ABI_AMD64_ENDIAN_LITTLE,
     77 			SFRAME_CFA_FIXED_FP_INVALID,
     78 			-8, /* Fixed RA offset for AMD64.  */
     79 			&err);
     80 
     81   err = add_plt_fde1 (ectx, 0);
     82   TEST ("plt-findfre-1: Adding FDE1 for plt", err == 0);
     83 
     84   fde_cnt = sframe_encoder_get_num_fidx (ectx);
     85   TEST ("plt-findfre-1: Test FDE count", fde_cnt == 1);
     86 
     87   sframe_buf = sframe_encoder_write (ectx, &sf_size, &err);
     88   TEST ("plt-findfre-1: Encoder write", err == 0);
     89 
     90   dctx = sframe_decode (sframe_buf, sf_size, &err);
     91   TEST("plt-findfre-1: Decoder setup", dctx != NULL);
     92 
     93   /* Find the first FRE in PLT1.  */
     94   err = sframe_find_fre (dctx, (0x1000 + 0x0), &frep);
     95   TEST("plt-findfre-1: Find first FRE in PLT1",
     96        ((err == 0) && (sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x1)));
     97 
     98   /* Find the second FRE.  */
     99   err = sframe_find_fre (dctx, (0x1000 + 0x6), &frep);
    100   TEST("plt-findfre-1: Find second FRE in PLT1",
    101        ((err == 0) && (sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x2)));
    102 
    103   /* Find the last FRE.  */
    104   err = sframe_find_fre (dctx, (0x1000 + 0xc), &frep);
    105   TEST("plt-findfre-1: Find last FRE in PLT1",
    106        ((err == 0) && (sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x3)));
    107 
    108   /* Find the first FRE in PLT4.  */
    109   err = sframe_find_fre (dctx, (0x1000 + 16*3 + 0x0), &frep);
    110   TEST("plt-findfre-1: Find first FRE in PLT4",
    111        ((err == 0) && (sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x1)));
    112 
    113   /* Find the second FRE in PLT4.  */
    114   err = sframe_find_fre (dctx, (0x1000 + 16*3 + 0x6), &frep);
    115   TEST("plt-findfre-1: Find second FRE in PLT4",
    116        ((err == 0) && (sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x2)));
    117 
    118   /* Find the last FRE in PLT4.  */
    119   err = sframe_find_fre (dctx, (0x1000 + 16*3 + 0xc), &frep);
    120   TEST("plt-findfre-1: Find last FRE in PLT4",
    121        ((err == 0) && (sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x3)));
    122 
    123   sframe_encoder_free (&ectx);
    124   sframe_decoder_free (&dctx);
    125 
    126   return 0;
    127 }
    128