libsframe: testsuite: add sframe_find_fre tests for pltN entries

Add a new test plt-findfre-1 to ensure lookup of SFrame stack trace
information for pltN entries is correct.

In this test, a dummy SFrame FDE of type SFRAME_FDE_TYPE_PCMASK is
created.  The size of the 'function code block' covered by the SFrame
FDE is equivalent to 5 pltN entries of 16 bytes each.

The test first looks up SFrame FREs for some addresses in the first pltN
entry, followed by lookups for some addresses in the fourth pltN entry.

libsframe/
	* Makefile.in: Regenerated.
	* testsuite/libsframe.find/find.exp: Add new test.
	* testsuite/libsframe.find/local.mk: Likewise.
	* testsuite/libsframe.find/plt-findfre-1.c: New test.

4 files changed, 175 insertions, 5 deletions

diff --git a/libsframe/Makefile.in b/libsframe/Makefile.in
index 405bc04..c6a4cd5 100644
--- a/libsframe/Makefile.in
+++ b/libsframe/Makefile.in
@@ -116,7 +116,8 @@ check_PROGRAMS = $(am__EXEEXT_1)
 @HAVE_COMPAT_DEJAGNU_TRUE@	testsuite/libsframe.decode/frecnt-2 \
 @HAVE_COMPAT_DEJAGNU_TRUE@	testsuite/libsframe.encode/encode-1 \
 @HAVE_COMPAT_DEJAGNU_TRUE@	testsuite/libsframe.find/findfre-1 \
-@HAVE_COMPAT_DEJAGNU_TRUE@	testsuite/libsframe.find/findfunc-1
+@HAVE_COMPAT_DEJAGNU_TRUE@	testsuite/libsframe.find/findfunc-1 \
+@HAVE_COMPAT_DEJAGNU_TRUE@	testsuite/libsframe.find/plt-findfre-1
 subdir = .
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/../bfd/acinclude.m4 \
@@ -186,7 +187,8 @@ am__v_lt_1 =
 @HAVE_COMPAT_DEJAGNU_TRUE@	testsuite/libsframe.decode/frecnt-2$(EXEEXT) \
 @HAVE_COMPAT_DEJAGNU_TRUE@	testsuite/libsframe.encode/encode-1$(EXEEXT) \
 @HAVE_COMPAT_DEJAGNU_TRUE@	testsuite/libsframe.find/findfre-1$(EXEEXT) \
-@HAVE_COMPAT_DEJAGNU_TRUE@	testsuite/libsframe.find/findfunc-1$(EXEEXT)
+@HAVE_COMPAT_DEJAGNU_TRUE@	testsuite/libsframe.find/findfunc-1$(EXEEXT) \
+@HAVE_COMPAT_DEJAGNU_TRUE@	testsuite/libsframe.find/plt-findfre-1$(EXEEXT)
 am__dirstamp = $(am__leading_dot)dirstamp
 am_testsuite_libsframe_decode_be_flipping_OBJECTS = testsuite/libsframe.decode/testsuite_libsframe_decode_be_flipping-be-flipping.$(OBJEXT)
 testsuite_libsframe_decode_be_flipping_OBJECTS =  \
@@ -218,6 +220,11 @@ testsuite_libsframe_find_findfunc_1_OBJECTS =  \
 	$(am_testsuite_libsframe_find_findfunc_1_OBJECTS)
 testsuite_libsframe_find_findfunc_1_DEPENDENCIES =  \
 	${top_builddir}/libsframe.la
+am_testsuite_libsframe_find_plt_findfre_1_OBJECTS = testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.$(OBJEXT)
+testsuite_libsframe_find_plt_findfre_1_OBJECTS =  \
+	$(am_testsuite_libsframe_find_plt_findfre_1_OBJECTS)
+testsuite_libsframe_find_plt_findfre_1_DEPENDENCIES =  \
+	${top_builddir}/libsframe.la
 AM_V_P = $(am__v_P_@AM_V@)
 am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
 am__v_P_0 = false
@@ -258,14 +265,16 @@ SOURCES = $(libsframe_la_SOURCES) \
 	$(testsuite_libsframe_decode_frecnt_2_SOURCES) \
 	$(testsuite_libsframe_encode_encode_1_SOURCES) \
 	$(testsuite_libsframe_find_findfre_1_SOURCES) \
-	$(testsuite_libsframe_find_findfunc_1_SOURCES)
+	$(testsuite_libsframe_find_findfunc_1_SOURCES) \
+	$(testsuite_libsframe_find_plt_findfre_1_SOURCES)
 DIST_SOURCES = $(libsframe_la_SOURCES) \
 	$(testsuite_libsframe_decode_be_flipping_SOURCES) \
 	$(testsuite_libsframe_decode_frecnt_1_SOURCES) \
 	$(testsuite_libsframe_decode_frecnt_2_SOURCES) \
 	$(testsuite_libsframe_encode_encode_1_SOURCES) \
 	$(testsuite_libsframe_find_findfre_1_SOURCES) \
-	$(testsuite_libsframe_find_findfunc_1_SOURCES)
+	$(testsuite_libsframe_find_findfunc_1_SOURCES) \
+	$(testsuite_libsframe_find_plt_findfre_1_SOURCES)
 AM_V_DVIPS = $(am__v_DVIPS_@AM_V@)
 am__v_DVIPS_ = $(am__v_DVIPS_@AM_DEFAULT_V@)
 am__v_DVIPS_0 = @echo "  DVIPS   " $@;
@@ -540,6 +549,9 @@ testsuite_libsframe_find_findfre_1_CPPFLAGS = -I${top_srcdir}/../include -Wall
 testsuite_libsframe_find_findfunc_1_SOURCES = testsuite/libsframe.find/findfunc-1.c
 testsuite_libsframe_find_findfunc_1_LDADD = ${top_builddir}/libsframe.la
 testsuite_libsframe_find_findfunc_1_CPPFLAGS = -I${top_srcdir}/../include -Wall
+testsuite_libsframe_find_plt_findfre_1_SOURCES = testsuite/libsframe.find/plt-findfre-1.c
+testsuite_libsframe_find_plt_findfre_1_LDADD = ${top_builddir}/libsframe.la
+testsuite_libsframe_find_plt_findfre_1_CPPFLAGS = -I${top_srcdir}/../include -Wall
 all: config.h
 	$(MAKE) $(AM_MAKEFLAGS) all-am
 
@@ -712,6 +724,13 @@ testsuite/libsframe.find/testsuite_libsframe_find_findfunc_1-findfunc-1.$(OBJEXT
 testsuite/libsframe.find/findfunc-1$(EXEEXT): $(testsuite_libsframe_find_findfunc_1_OBJECTS) $(testsuite_libsframe_find_findfunc_1_DEPENDENCIES) $(EXTRA_testsuite_libsframe_find_findfunc_1_DEPENDENCIES) testsuite/libsframe.find/$(am__dirstamp)
 	@rm -f testsuite/libsframe.find/findfunc-1$(EXEEXT)
 	$(AM_V_CCLD)$(LINK) $(testsuite_libsframe_find_findfunc_1_OBJECTS) $(testsuite_libsframe_find_findfunc_1_LDADD) $(LIBS)
+testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.$(OBJEXT):  \
+	testsuite/libsframe.find/$(am__dirstamp) \
+	testsuite/libsframe.find/$(DEPDIR)/$(am__dirstamp)
+
+testsuite/libsframe.find/plt-findfre-1$(EXEEXT): $(testsuite_libsframe_find_plt_findfre_1_OBJECTS) $(testsuite_libsframe_find_plt_findfre_1_DEPENDENCIES) $(EXTRA_testsuite_libsframe_find_plt_findfre_1_DEPENDENCIES) testsuite/libsframe.find/$(am__dirstamp)
+	@rm -f testsuite/libsframe.find/plt-findfre-1$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(testsuite_libsframe_find_plt_findfre_1_OBJECTS) $(testsuite_libsframe_find_plt_findfre_1_LDADD) $(LIBS)
 
 mostlyclean-compile:
 	-rm -f *.$(OBJEXT)
@@ -731,6 +750,7 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@testsuite/libsframe.encode/$(DEPDIR)/testsuite_libsframe_encode_encode_1-encode-1.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@testsuite/libsframe.find/$(DEPDIR)/testsuite_libsframe_find_findfre_1-findfre-1.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@testsuite/libsframe.find/$(DEPDIR)/testsuite_libsframe_find_findfunc_1-findfunc-1.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@testsuite/libsframe.find/$(DEPDIR)/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.Po@am__quote@
 
 .c.o:
 @am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
@@ -861,6 +881,20 @@ testsuite/libsframe.find/testsuite_libsframe_find_findfunc_1-findfunc-1.obj: tes
 @AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
 @am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(testsuite_libsframe_find_findfunc_1_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o testsuite/libsframe.find/testsuite_libsframe_find_findfunc_1-findfunc-1.obj `if test -f 'testsuite/libsframe.find/findfunc-1.c'; then $(CYGPATH_W) 'testsuite/libsframe.find/findfunc-1.c'; else $(CYGPATH_W) '$(srcdir)/testsuite/libsframe.find/findfunc-1.c'; fi`
 
+testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.o: testsuite/libsframe.find/plt-findfre-1.c
+@am__fastdepCC_TRUE@	$(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(testsuite_libsframe_find_plt_findfre_1_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.o -MD -MP -MF testsuite/libsframe.find/$(DEPDIR)/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.Tpo -c -o testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.o `test -f 'testsuite/libsframe.find/plt-findfre-1.c' || echo '$(srcdir)/'`testsuite/libsframe.find/plt-findfre-1.c
+@am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) testsuite/libsframe.find/$(DEPDIR)/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.Tpo testsuite/libsframe.find/$(DEPDIR)/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='testsuite/libsframe.find/plt-findfre-1.c' object='testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.o' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(testsuite_libsframe_find_plt_findfre_1_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.o `test -f 'testsuite/libsframe.find/plt-findfre-1.c' || echo '$(srcdir)/'`testsuite/libsframe.find/plt-findfre-1.c
+
+testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.obj: testsuite/libsframe.find/plt-findfre-1.c
+@am__fastdepCC_TRUE@	$(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(testsuite_libsframe_find_plt_findfre_1_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.obj -MD -MP -MF testsuite/libsframe.find/$(DEPDIR)/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.Tpo -c -o testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.obj `if test -f 'testsuite/libsframe.find/plt-findfre-1.c'; then $(CYGPATH_W) 'testsuite/libsframe.find/plt-findfre-1.c'; else $(CYGPATH_W) '$(srcdir)/testsuite/libsframe.find/plt-findfre-1.c'; fi`
+@am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) testsuite/libsframe.find/$(DEPDIR)/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.Tpo testsuite/libsframe.find/$(DEPDIR)/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='testsuite/libsframe.find/plt-findfre-1.c' object='testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.obj' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(testsuite_libsframe_find_plt_findfre_1_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o testsuite/libsframe.find/testsuite_libsframe_find_plt_findfre_1-plt-findfre-1.obj `if test -f 'testsuite/libsframe.find/plt-findfre-1.c'; then $(CYGPATH_W) 'testsuite/libsframe.find/plt-findfre-1.c'; else $(CYGPATH_W) '$(srcdir)/testsuite/libsframe.find/plt-findfre-1.c'; fi`
+
 mostlyclean-libtool:
 	-rm -f *.lo
 
diff --git a/libsframe/testsuite/libsframe.find/find.exp b/libsframe/testsuite/libsframe.find/find.exp
index 05ac02b..ce80490 100644
--- a/libsframe/testsuite/libsframe.find/find.exp
+++ b/libsframe/testsuite/libsframe.find/find.exp
@@ -25,6 +25,7 @@ if [string equal $COMPAT_DEJAGNU "no"] {
     verbose -log "SFrame testsuite needs perhaps a more recent DejaGnu"
     unsupported findfre-1
     unsupported findfunc-1
+    unsupported plt-findfre-1
     return;
 }
 
@@ -35,3 +36,7 @@ if { [host_execute "testsuite/libsframe.find/findfre-1"] ne "" } {
 if { [host_execute "testsuite/libsframe.find/findfunc-1"] ne "" } {
     fail "findfunc-1"
 }
+
+if { [host_execute "testsuite/libsframe.find/plt-findfre-1"] ne "" } {
+    fail "plt-findfre-1"
+}
diff --git a/libsframe/testsuite/libsframe.find/local.mk b/libsframe/testsuite/libsframe.find/local.mk
index e8e4fa8..03206b1 100644
--- a/libsframe/testsuite/libsframe.find/local.mk
+++ b/libsframe/testsuite/libsframe.find/local.mk
@@ -1,5 +1,5 @@
 if HAVE_COMPAT_DEJAGNU
-  check_PROGRAMS += %D%/findfre-1 %D%/findfunc-1
+  check_PROGRAMS += %D%/findfre-1 %D%/findfunc-1 %D%/plt-findfre-1
 endif
 
 %C%_findfre_1_SOURCES = %D%/findfre-1.c
@@ -9,3 +9,7 @@ endif
 %C%_findfunc_1_SOURCES = %D%/findfunc-1.c
 %C%_findfunc_1_LDADD = ${top_builddir}/libsframe.la
 %C%_findfunc_1_CPPFLAGS = -I${top_srcdir}/../include -Wall
+
+%C%_plt_findfre_1_SOURCES = %D%/plt-findfre-1.c
+%C%_plt_findfre_1_LDADD = ${top_builddir}/libsframe.la
+%C%_plt_findfre_1_CPPFLAGS = -I${top_srcdir}/../include -Wall
diff --git a/libsframe/testsuite/libsframe.find/plt-findfre-1.c b/libsframe/testsuite/libsframe.find/plt-findfre-1.c
new file mode 100644
index 0000000..f6f4fd7
--- /dev/null
+++ b/libsframe/testsuite/libsframe.find/plt-findfre-1.c
@@ -0,0 +1,127 @@
+/* plt-findfre-1.c -- Test for sframe_find_fre for SFRAME_FDE_TYPE_PCMASK.
+
+   Copyright (C) 2023 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+
+#include "sframe-api.h"
+
+/* DejaGnu should not use gnulib's vsnprintf replacement here.  */
+#undef vsnprintf
+#include <dejagnu.h>
+
+static int
+add_plt_fde1 (sframe_encoder_ctx *ectx, int idx)
+{
+  int i, err;
+  /* A contiguous block containing 3 FREs.  The start_ip_offset must remain
+     less than 16 bytes.  */
+  sframe_frame_row_entry fres[]
+    = { {0x0, {0x1, 0, 0}, 0x3},
+	{0x6, {0x2, 0xf0, 0}, 0x5},
+	{0xc, {0x3, 0xf0, 0}, 0x4}
+      };
+
+  unsigned char finfo = sframe_fde_create_func_info (SFRAME_FRE_TYPE_ADDR1,
+						     SFRAME_FDE_TYPE_PCMASK);
+  /* 5 pltN entries of 16 bytes each.  */
+  err = sframe_encoder_add_funcdesc (ectx, 0x1000, 16*5, finfo, 3);
+  if (err == -1)
+    return err;
+
+  for (i = 0; i < 3; i++)
+    if (sframe_encoder_add_fre (ectx, idx, fres+i) == SFRAME_ERR)
+      return -1;
+
+  return 0;
+}
+
+int main (void)
+{
+  sframe_encoder_ctx *ectx;
+  sframe_decoder_ctx *dctx;
+  sframe_frame_row_entry frep;
+  char *sframe_buf;
+  size_t sf_size;
+  int err = 0;
+  unsigned int fde_cnt = 0;
+
+#define TEST(name, cond)                                                      \
+  do                                                                          \
+    {                                                                         \
+      if (cond)                                                               \
+	pass (name);                                                          \
+      else                                                                    \
+	fail (name);                                                          \
+    }                                                                         \
+    while (0)
+
+  ectx = sframe_encode (SFRAME_VERSION, 0, SFRAME_ABI_AMD64_ENDIAN_LITTLE,
+			SFRAME_CFA_FIXED_FP_INVALID,
+			-8, /* Fixed RA offset for AMD64.  */
+			&err);
+
+  err = add_plt_fde1 (ectx, 0);
+  TEST ("plt-findfre-1: Adding FDE1 for plt", err == 0);
+
+  fde_cnt = sframe_encoder_get_num_fidx (ectx);
+  TEST ("plt-findfre-1: Test FDE count", fde_cnt == 1);
+
+  sframe_buf = sframe_encoder_write (ectx, &sf_size, &err);
+  TEST ("plt-findfre-1: Encoder write", err == 0);
+
+  dctx = sframe_decode (sframe_buf, sf_size, &err);
+  TEST("plt-findfre-1: Decoder setup", dctx != NULL);
+
+  /* Find the first FRE in PLT1.  */
+  err = sframe_find_fre (dctx, (0x1000 + 0x0), &frep);
+  TEST("plt-findfre-1: Find first FRE in PLT1",
+       ((err == 0) && (sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x1)));
+
+  /* Find the second FRE.  */
+  err = sframe_find_fre (dctx, (0x1000 + 0x6), &frep);
+  TEST("plt-findfre-1: Find second FRE in PLT1",
+       ((err == 0) && (sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x2)));
+
+  /* Find the last FRE.  */
+  err = sframe_find_fre (dctx, (0x1000 + 0xc), &frep);
+  TEST("plt-findfre-1: Find last FRE in PLT1",
+       ((err == 0) && (sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x3)));
+
+  /* Find the first FRE in PLT4.  */
+  err = sframe_find_fre (dctx, (0x1000 + 16*3 + 0x0), &frep);
+  TEST("plt-findfre-1: Find first FRE in PLT4",
+       ((err == 0) && (sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x1)));
+
+  /* Find the second FRE in PLT4.  */
+  err = sframe_find_fre (dctx, (0x1000 + 16*3 + 0x6), &frep);
+  TEST("plt-findfre-1: Find second FRE in PLT4",
+       ((err == 0) && (sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x2)));
+
+  /* Find the last FRE in PLT4.  */
+  err = sframe_find_fre (dctx, (0x1000 + 16*3 + 0xc), &frep);
+  TEST("plt-findfre-1: Find last FRE in PLT4",
+       ((err == 0) && (sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x3)));
+
+  sframe_encoder_free (&ectx);
+  sframe_decoder_free (&dctx);
+
+  return 0;
+}