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libsframe provides an API to find the FRE associated with a given PC in the program. This patch adds a direct test of this API. In this test, we create two dummy SFrame FDEs with 4 FREs each. Then we test that sframe_find_fre () works for the first, second, third and the last FRE from one of the FDEs. Such a test ensures better regression testing for the sframe_find_fre () function which is going to be the bread and butter of an SFrame based stack tracer. libsframe/ * Makefile.in: Regenerated. * testsuite/libsframe.find/find.exp: New test. * testsuite/libsframe.find/findfre-1.c: New test. * testsuite/libsframe.find/local.mk: Build new test. * testsuite/local.mk: Include libsframe.find.users/aburgess/try-core-file-pid0
Indu Bhagat
3 years ago
5 changed files with 250 additions and 10 deletions
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# Copyright (C) 2023 Free Software Foundation, Inc. |
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# |
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# This file is part of the GNU Binutils. |
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# |
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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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# |
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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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# |
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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, write to the Free Software |
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# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
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# MA 02110-1301, USA. |
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# |
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load_lib dejagnu.exp |
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# Run the tests only if compatible dejagnu gcc pair is found |
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if [string equal $COMPAT_DEJAGNU "no"] { |
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verbose -log "SFrame testsuite needs perhaps a more recent DejaGnu" |
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unsupported findfre-1 |
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return; |
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} |
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if { [host_execute "testsuite/libsframe.find/findfre-1"] ne "" } { |
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fail "findfre-1" |
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} |
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/* findfre-1.c -- Test for sframe_find_fre in libsframe.
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Copyright (C) 2023 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, int idx) |
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{ |
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int i, err; |
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/* A contiguous block containing 4 FREs. */ |
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sframe_frame_row_entry 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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unsigned char finfo = sframe_fde_create_func_info (SFRAME_FRE_TYPE_ADDR1, |
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SFRAME_FDE_TYPE_PCINC); |
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err = sframe_encoder_add_funcdesc (encode, 0xfffff03e, 0x40, finfo, 4); |
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if (err == -1) |
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return err; |
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for (i = 0; i < 4; 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, int idx) |
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{ |
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int i, err; |
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/* A contiguous block containing 4 FREs. */ |
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sframe_frame_row_entry 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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unsigned char finfo = sframe_fde_create_func_info (SFRAME_FRE_TYPE_ADDR1, |
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SFRAME_FDE_TYPE_PCINC); |
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err = sframe_encoder_add_funcdesc (encode, 0xfffff08e, 0x60, finfo, 4); |
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if (err == -1) |
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return err; |
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for (i = 0; i < 4; 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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int main (void) |
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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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char *sframe_buf; |
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size_t sf_size; |
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int err = 0; |
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unsigned int fde_cnt = 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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err = add_fde1 (encode, 0); |
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TEST ("findfre-1: Adding FDE1", err == 0); |
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err = add_fde2 (encode, 1); |
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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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err = sframe_find_fre (dctx, (0xfffff03e + 0x15), &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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err = sframe_find_fre (dctx, (0xfffff03e + 0x9), &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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err = sframe_find_fre (dctx, (0xfffff03e + 0x39), &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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err = sframe_find_fre (dctx, (0xfffff08e + 0x11), &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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err = sframe_find_fre (dctx, (0xfffff08e + 0x0), &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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err = sframe_find_fre (dctx, (0xfffff03e + 0x40), &frep); |
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TEST("findfre-1: Find FRE for out of range PC", |
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(err == SFRAME_ERR)); |
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sframe_encoder_free (&encode); |
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sframe_decoder_free (&dctx); |
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return 0; |
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} |
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if HAVE_COMPAT_DEJAGNU |
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check_PROGRAMS += %D%/findfre-1 |
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endif |
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%C%_findfre_1_SOURCES = %D%/findfre-1.c |
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%C%_findfre_1_LDADD = ${top_builddir}/libsframe.la |
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%C%_findfre_1_CPPFLAGS = -I${top_srcdir}/../include -Wall |
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