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0d15aea98b
The testcase had usages of some magic numbers, making it difficult to keep up when format changes come along. libsframe/testsuite/ * libsframe.find/findfre-1.c: Restructure a bit. Run test for two ways of placement of .sframe and .text.
195 lines
6.8 KiB
C
195 lines
6.8 KiB
C
/* findfre-1.c -- Test for sframe_find_fre in libsframe.
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Copyright (C) 2023-2025 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "config.h"
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include "sframe-api.h"
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/* DejaGnu should not use gnulib's vsnprintf replacement here. */
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#undef vsnprintf
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#include <dejagnu.h>
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static int
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add_fde1 (sframe_encoder_ctx *encode, uint32_t start_pc_vaddr,
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uint32_t sframe_vaddr, int idx, uint32_t *func_size)
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{
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/* A contiguous block containing 4 FREs. */
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#define FDE1_NUM_FRES 4
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sframe_frame_row_entry fres[FDE1_NUM_FRES]
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= { {0x0, {0x1, 0, 0}, 0x3},
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{0x1, {0x2, 0xf0, 0}, 0x5},
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{0x10, {0x3, 0xf0, 0}, 0x4},
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{0x38, {0x8, 0xf0, 0}, 0x5}
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};
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/* Function size in bytes. P.S. Must be a value greater than the
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fre_start_addr of the last FRE above (0x38). */
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*func_size = 0x40;
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int32_t func1_start_addr = start_pc_vaddr - sframe_vaddr;
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unsigned char finfo = sframe_fde_create_func_info (SFRAME_FRE_TYPE_ADDR1,
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SFRAME_FDE_TYPE_PCINC);
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int err = sframe_encoder_add_funcdesc (encode, func1_start_addr, *func_size,
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finfo, FDE1_NUM_FRES);
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if (err == -1)
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return err;
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for (unsigned int i = 0; i < FDE1_NUM_FRES; i++)
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if (sframe_encoder_add_fre (encode, idx, fres + i) == SFRAME_ERR)
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return -1;
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return 0;
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}
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static int
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add_fde2 (sframe_encoder_ctx *encode, uint32_t start_pc_vaddr,
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uint32_t sframe_vaddr, int idx, uint32_t *func_size)
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{
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/* A contiguous block containing 4 FREs. */
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#define FDE2_NUM_FRES 4
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sframe_frame_row_entry fres[FDE2_NUM_FRES]
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= { {0x0, {0x10, 0, 0}, 0x3},
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{0x10, {0x12, 0xf0, 0}, 0x5},
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{0x14, {0x14, 0xf0, 0}, 0x4},
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{0x20, {0x15, 0xf0, 0}, 0x5}
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};
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/* Function size in bytes. P.S. Must be a value greater than the
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fre_start_addr of the last FRE above (0x20). */
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*func_size = 0x60;
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int32_t func2_start_addr = start_pc_vaddr - sframe_vaddr;
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unsigned char finfo = sframe_fde_create_func_info (SFRAME_FRE_TYPE_ADDR1,
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SFRAME_FDE_TYPE_PCINC);
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int err = sframe_encoder_add_funcdesc (encode, func2_start_addr, *func_size,
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finfo, FDE2_NUM_FRES);
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if (err == -1)
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return err;
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for (unsigned int i = 0; i < FDE2_NUM_FRES; i++)
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if (sframe_encoder_add_fre (encode, idx, fres + i) == SFRAME_ERR)
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return -1;
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return 0;
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}
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static
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void test_text_findfre (uint32_t text_vaddr, uint32_t sframe_vaddr)
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{
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sframe_encoder_ctx *encode;
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sframe_decoder_ctx *dctx;
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sframe_frame_row_entry frep;
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uint32_t func1_start_vaddr;
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uint32_t func2_start_vaddr;
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uint32_t func1_size = 0;
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uint32_t func2_size = 0;
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uint32_t fde_cnt = 0;
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int32_t lookup_pc;
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char *sframe_buf;
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size_t sf_size;
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int err = 0;
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#define TEST(name, cond) \
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do \
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{ \
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if (cond) \
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pass (name); \
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else \
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fail (name); \
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} \
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while (0)
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encode = sframe_encode (SFRAME_VERSION, 0,
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SFRAME_ABI_AMD64_ENDIAN_LITTLE,
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SFRAME_CFA_FIXED_FP_INVALID,
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-8, /* Fixed RA offset for AMD64. */
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&err);
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func1_start_vaddr = text_vaddr;
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err = add_fde1 (encode, func1_start_vaddr, sframe_vaddr, 0, &func1_size);
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TEST ("findfre-1: Adding FDE1", err == 0);
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/* Function 2 is placed after 0x10 bytes from the end of Function 1. */
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func2_start_vaddr = func1_start_vaddr + func1_size + 0x10;
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err = add_fde2 (encode, func2_start_vaddr, sframe_vaddr, 1, &func2_size);
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TEST ("findfre-1: Adding FDE2", err == 0);
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fde_cnt = sframe_encoder_get_num_fidx (encode);
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TEST ("findfre-1: Test FDE count", fde_cnt == 2);
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sframe_buf = sframe_encoder_write (encode, &sf_size, &err);
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TEST ("findfre-1: Encoder write", err == 0);
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dctx = sframe_decode (sframe_buf, sf_size, &err);
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TEST ("findfre-1: Decoder setup", dctx != NULL);
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/* Find the third FRE in first FDE. */
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lookup_pc = func1_start_vaddr + 0x15 - sframe_vaddr;
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err = sframe_find_fre (dctx, lookup_pc, &frep);
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TEST ("findfre-1: Find third FRE",
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(err == 0 && sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x3));
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/* Find an FRE for PC at the end of range covered by FRE. */
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lookup_pc = func1_start_vaddr + 0x9 - sframe_vaddr;
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err = sframe_find_fre (dctx, lookup_pc, &frep);
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TEST ("findfre-1: Find FRE for last PC covered by FRE",
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(err == 0 && sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x2));
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/* Find the last FRE in first FDE. */
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lookup_pc = func1_start_vaddr + 0x39 - sframe_vaddr;
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err = sframe_find_fre (dctx, lookup_pc, &frep);
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TEST ("findfre-1: Find last FRE",
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(err == 0 && sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x8));
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/* Find the second FRE in second FDE. */
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lookup_pc = func2_start_vaddr + 0x11 - sframe_vaddr;
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err = sframe_find_fre (dctx, lookup_pc, &frep);
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TEST ("findfre-1: Find second FRE",
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(err == 0 && sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x12));
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/* Find the first FRE in second FDE. */
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lookup_pc = func2_start_vaddr + 0x0 - sframe_vaddr;
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err = sframe_find_fre (dctx, lookup_pc, &frep);
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TEST ("findfre-1: Find first FRE",
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(err == 0 && sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x10));
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/* Find FRE for PC out of range. Expect error code. */
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lookup_pc = func1_start_vaddr + func1_size - sframe_vaddr;
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err = sframe_find_fre (dctx, lookup_pc, &frep);
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TEST ("findfre-1: Find FRE for out of range PC", err == SFRAME_ERR);
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sframe_encoder_free (&encode);
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sframe_decoder_free (&dctx);
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}
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int main (void)
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{
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uint32_t sframe_vaddr = 0x402220;
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uint32_t text_vaddr = 0x401020;
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printf ("Testing with text_vaddr = %#x; sframe_vaddr = %#x\n", text_vaddr,
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sframe_vaddr);
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test_text_findfre (text_vaddr, sframe_vaddr);
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sframe_vaddr = 0x401020;
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text_vaddr = 0x402220;
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printf ("Testing with text_vaddr = %#x; sframe_vaddr = %#x\n", text_vaddr,
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sframe_vaddr);
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test_text_findfre (text_vaddr, sframe_vaddr);
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}
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