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-rw-r--r--tests/analysis/disass/Makefile5
-rw-r--r--tests/analysis/disass/block.py37
-rw-r--r--tests/analysis/disass/evalcommand.c243
3 files changed, 284 insertions, 1 deletions
diff --git a/tests/analysis/disass/Makefile b/tests/analysis/disass/Makefile
index ef70dec..17df230 100644
--- a/tests/analysis/disass/Makefile
+++ b/tests/analysis/disass/Makefile
@@ -1,5 +1,5 @@
-EXECUTABLES=hello endofname irreducible selfloop
+EXECUTABLES=hello endofname irreducible selfloop evalcommand
all: $(EXECUTABLES)
@@ -15,5 +15,8 @@ irreducible: irreducible.c
selfloop: selfloop.c
$(ARM_CROSS)gcc $< -o $@
+evalcommand: evalcommand.c
+ $(ARM_CROSS)gcc $< -o $@
+
clean:
rm -f $(EXECUTABLES)
diff --git a/tests/analysis/disass/block.py b/tests/analysis/disass/block.py
index 0b4f3dd..f8e6fe9 100644
--- a/tests/analysis/disass/block.py
+++ b/tests/analysis/disass/block.py
@@ -33,6 +33,8 @@ class TestBasicBlocks(ChrysalideTestCase):
os.system('make -C %s selfloop > /dev/null 2>&1' % dirpath)
+ os.system('make -C %s evalcommand > /dev/null 2>&1' % dirpath)
+
@classmethod
def tearDownClass(cls):
@@ -147,3 +149,38 @@ class TestBasicBlocks(ChrysalideTestCase):
loop_count += 1
self.assertEqual(loop_count, 1)
+
+
+ def testComplexLoopBlock(self):
+ """Validate support for complex loop blocks."""
+
+ fullname = sys.modules[self.__class__.__module__].__file__
+ filename = os.path.basename(fullname)
+
+ baselen = len(fullname) - len(filename)
+
+ cnt = FileContent(fullname[:baselen] + 'evalcommand')
+ self.assertIsNotNone(cnt)
+
+ fmt = ElfFormat(cnt)
+ self.assertIsNotNone(fmt)
+
+ binary = LoadedBinary(fmt)
+ self.assertIsNotNone(binary)
+
+ binary.analyze_and_wait()
+
+ sym = fmt.find_symbol_by_label('evalcommand')
+ self.assertIsNotNone(sym)
+
+ found = sym.basic_blocks.find_by_addr(sym.range.addr)
+ self.assertIsNotNone(found)
+
+ loop_count = 0
+
+ for blk in sym.basic_blocks:
+ for _, dt in blk.destinations:
+ if dt == ArchInstruction.ILT_LOOP:
+ loop_count += 1
+
+ self.assertEqual(loop_count, 3)
diff --git a/tests/analysis/disass/evalcommand.c b/tests/analysis/disass/evalcommand.c
new file mode 100644
index 0000000..f6effc3
--- /dev/null
+++ b/tests/analysis/disass/evalcommand.c
@@ -0,0 +1,243 @@
+
+
+/**
+ * On reproduit un code similaire à celui d'un fichier de Busybox (busybox-1.30.0/shell/ash.c).
+ *
+ * La commande de compilation est :
+ *
+ * arm-linux-gnueabi-gcc -Wp,-MD,shell/.ash.o.d -std=gnu99 -Iinclude -Ilibbb -include include/autoconf.h -D_GNU_SOURCE -DNDEBUG -D"BB_VER=KBUILD_STR(1.30.0)" -Wall -Wshadow -Wwrite-strings -Wundef -Wstrict-prototypes -Wunused -Wunused-parameter -Wunused-function -Wunused-value -Wmissing-prototypes -Wmissing-declarations -Wno-format-security -Wdeclaration-after-statement -Wold-style-definition -fno-builtin-strlen -finline-limit=0 -fomit-frame-pointer -ffunction-sections -fdata-sections -fno-guess-branch-probability -funsigned-char -static-libgcc -falign-functions=1 -falign-jumps=1 -falign-labels=1 -falign-loops=1 -fno-unwind-tables -fno-asynchronous-unwind-tables -fno-builtin-printf -Os -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(ash)" -D"KBUILD_MODNAME=KBUILD_STR(ash)" -c -o shell/ash.o shell/ash.c
+ *
+ */
+
+#if 0
+
+static int
+evalcommand(union node *cmd, int flags)
+{
+ static const struct builtincmd null_bltin = {
+ "\0\0", bltincmd /* why three NULs? */
+ };
+
+ union node *argp;
+ struct arglist arglist;
+ char **argv;
+ int argc;
+ const struct strlist *sp;
+ struct cmdentry cmdentry;
+ const char *path;
+ char **nargv;
+
+
+ /* First expand the arguments. */
+
+ cmdentry.cmdtype = CMDBUILTIN;
+ cmdentry.u.cmd = &null_bltin;
+ arglist.lastp = &arglist.list;
+ *arglist.lastp = NULL;
+
+ argc = 0;
+ if (cmd->ncmd.args) {
+ smallint pseudovarflag;
+
+ for (argp = cmd->ncmd.args; argp; argp = argp->narg.next) {
+ struct strlist **spp;
+
+ spp = arglist.lastp;
+ if (pseudovarflag)
+ expandarg(argp, &arglist, EXP_VARTILDE);
+
+ for (sp = *spp; sp; sp = sp->next)
+ argc++;
+ }
+ }
+
+ /* Reserve one extra spot at the front for shellexec. */
+ nargv = NULL;//stalloc(sizeof(char *) * (argc + 2));
+ argv = ++nargv;
+ *nargv = NULL;
+
+
+
+
+ path = vpath.var_text;
+
+ /* Now locate the command. */
+
+ for (;;) {
+ find_command(argv[0], &cmdentry, DO_ERR, path);
+
+#if ENABLE_ASH_CMDCMD
+ if (cmdentry.u.cmd == COMMANDCMD) {
+ nargv = parse_command_args(argv, &path);
+ break;
+
+ } else
+#endif
+ break;
+ }
+
+
+
+ return 0;
+
+}
+
+#endif
+
+
+static int __attribute__ ((naked)) evalcommand(void /*union node*/ *cmd, int flags)
+{
+
+ /*
+ 138ac: e92d401f push {r0, r1, r2, r3, r4, lr}
+ 138b0: e3a03002 mov r3, #2
+ 138b4: e58d3008 str r3, [sp, #8]
+ 138b8: e59f30b8 ldr r3, [pc, #184] ; 13978 <evalcommand+0xcc>
+ 138bc: e58dd004 str sp, [sp, #4]
+ 138c0: e58d300c str r3, [sp, #12]
+ 138c4: e3a03000 mov r3, #0
+ 138c8: e58d3000 str r3, [sp]
+ 138cc: e590300c ldr r3, [r0, #12]
+ 138d0: e3530000 cmp r3, #0
+ 138d4: 1a00000d bne 13910 <evalcommand+0x64>
+ 138d8: e3a00000 mov r0, #0
+ 138dc: e59f3098 ldr r3, [pc, #152] ; 1397c <evalcommand+0xd0>
+ 138e0: e5800004 str r0, [r0, #4]
+ 138e4: e5933000 ldr r3, [r3]
+ 138e8: e3a02001 mov r2, #1
+ 138ec: e59330f0 ldr r3, [r3, #240] ; 0xf0
+ 138f0: e28d1008 add r1, sp, #8
+ 138f4: ebfffe71 bl 132c0 <find_command>
+ 138f8: e59d200c ldr r2, [sp, #12]
+ 138fc: e59f307c ldr r3, [pc, #124] ; 13980 <evalcommand+0xd4>
+ 13900: e1520003 cmp r2, r3
+ 13904: 1a000018 bne 1396c <evalcommand+0xc0>
+ 13908: e3a01004 mov r1, #4
+ 1390c: ea00000f b 13950 <evalcommand+0xa4>
+ 13910: e5933004 ldr r3, [r3, #4]
+ 13914: eaffffed b 138d0 <evalcommand+0x24>
+ 13918: e5d23000 ldrb r3, [r2]
+ 1391c: e353002d cmp r3, #45 ; 0x2d
+ 13920: 1a000011 bne 1396c <evalcommand+0xc0>
+ 13924: e5d23001 ldrb r3, [r2, #1]
+ 13928: e2820002 add r0, r2, #2
+ 1392c: e3530000 cmp r3, #0
+ 13930: 0a00000d beq 1396c <evalcommand+0xc0>
+ 13934: e353002d cmp r3, #45 ; 0x2d
+ 13938: 0a000008 beq 13960 <evalcommand+0xb4>
+ 1393c: e3530070 cmp r3, #112 ; 0x70
+ 13940: 1a000009 bne 1396c <evalcommand+0xc0>
+ 13944: e4d03001 ldrb r3, [r0], #1
+ 13948: e3530000 cmp r3, #0
+ 1394c: 1afffffa bne 1393c <evalcommand+0x90>
+ 13950: e5b12004 ldr r2, [r1, #4]!
+ 13954: e3520000 cmp r2, #0
+ 13958: 0a000003 beq 1396c <evalcommand+0xc0>
+ 1395c: eaffffed b 13918 <evalcommand+0x6c>
+ 13960: e5d22002 ldrb r2, [r2, #2]
+ 13964: e3520000 cmp r2, #0
+ 13968: 1afffff3 bne 1393c <evalcommand+0x90>
+ 1396c: e3a00000 mov r0, #0
+ 13970: e28dd014 add sp, sp, #20
+ 13974: e49df004 pop {pc} ; (ldr pc, [sp], #4)
+ 13978: 00017fa4 .word 0x00017fa4
+ 1397c: 000213f4 .word 0x000213f4
+ 13980: 00017e60 .word 0x00017e60
+ */
+
+
+asm (
+
+ "push {r0, r1, r2, r3, r4, lr}" "\n"
+ "mov r3, #2" "\n"
+ "str r3, [sp, #8]" "\n"
+ "ldr r3, [pc, #184]" "\n"
+ "str sp, [sp, #4]" "\n"
+ "str r3, [sp, #12]" "\n"
+ "mov r3, #0" "\n"
+ "str r3, [sp]" "\n"
+ "ldr r3, [r0, #12]" "\n"
+
+ ".Lbl_138d0%=:" "\n"
+
+ "cmp r3, #0" "\n"
+ "bne .Lbl_13910%=" "\n"
+
+ "mov r0, #0" "\n"
+ "ldr r3, [pc, #152]" "\n"
+ "str r0, [r0, #4]" "\n"
+ "ldr r3, [r3]" "\n"
+ "mov r2, #1" "\n"
+ "ldr r3, [r3, #240]" "\n"
+ "add r1, sp, #8" "\n"
+ "bl .Lbl_find%=" "\n" /* <find_command> */
+ "ldr r2, [sp, #12]" "\n"
+ "ldr r3, [pc, #124]" "\n"
+ "cmp r2, r3" "\n"
+ "bne .Lbl_1396c%=" "\n"
+
+ "mov r1, #4" "\n"
+ "b .Lbl_13950%=" "\n"
+
+ ".Lbl_13910%=:" "\n"
+
+ "ldr r3, [r3, #4]" "\n"
+ "b .Lbl_138d0%=" "\n"
+
+ ".Lbl_13918%=:" "\n"
+
+ "ldrb r3, [r2]" "\n"
+ "cmp r3, #45" "\n"
+ "bne .Lbl_1396c%=" "\n"
+
+ "ldrb r3, [r2, #1]" "\n"
+ "add r0, r2, #2" "\n"
+ "cmp r3, #0" "\n"
+ "beq .Lbl_1396c%=" "\n"
+
+ "cmp r3, #45" "\n"
+ "beq .Lbl_13960%=" "\n"
+
+ ".Lbl_1393c%=:" "\n"
+
+ "cmp r3, #112" "\n"
+ "bne .Lbl_1396c%=" "\n"
+
+ "ldrb r3, [r0], #1" "\n"
+ "cmp r3, #0" "\n"
+ "bne .Lbl_1393c%=" "\n"
+
+ ".Lbl_13950%=:" "\n"
+
+ "ldr r2, [r1, #4]!" "\n"
+ "cmp r2, #0" "\n"
+ "beq .Lbl_1396c%=" "\n"
+ "b .Lbl_13918%=" "\n"
+
+ ".Lbl_13960%=:" "\n"
+
+ "ldrb r2, [r2, #2]" "\n"
+ "cmp r2, #0" "\n"
+ "bne .Lbl_1393c%=" "\n"
+
+ ".Lbl_1396c%=:" "\n"
+
+ "mov r0, #0" "\n"
+ "add sp, sp, #20" "\n"
+ "pop {pc}" "\n"
+
+ ".word 0x00017fa4" "\n"
+ ".word 0x000213f4" "\n"
+ ".word 0x00017e60" "\n"
+
+ ".Lbl_find%=:" "\n"
+
+ ::"r" (cmd, flags));
+
+}
+
+int main(int argc, char **argv)
+{
+ return evalcommand((void *)0, 0);
+
+}
generated by cgit v0.11.2-87-g4458 at 2024-11-12 15:37:55 (GMT)