From: Martin Liska Date: Tue, 9 Oct 2018 08:34:52 +0000 (+0200) Subject: ASAN: emit line information of stack variables. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2c73950deda1f9e594ce1a397e911b38bccb9b52;p=gcc.git ASAN: emit line information of stack variables. 2018-10-09 Martin Liska * asan.c (asan_emit_stack_protection): If a stack variable is located in a same file as current function, then emit line info into variable definition string. 2018-10-09 Martin Liska * c-c++-common/asan/pr64820.c: Add line number to scanned pattern. * c-c++-common/asan/use-after-return-1.c: Likewise. * g++.dg/asan/function-argument-1.C (main): Likewise. * g++.dg/asan/function-argument-2.C (main): Likewise. * g++.dg/asan/function-argument-3.C (main): Likewise. * g++.dg/asan/use-after-scope-1.C (main): Likewise. * g++.dg/asan/use-after-scope-2.C (main): Likewise. * g++.dg/asan/use-after-scope-types-1.C (main): Likewise. * g++.dg/asan/use-after-scope-types-2.C (main): Likewise. * g++.dg/asan/use-after-scope-types-3.C (main): Likewise. * g++.dg/asan/use-after-scope-types-4.C (main): Likewise. * g++.dg/asan/use-after-scope-types-5.C (main): Likewise. * gcc.dg/asan/pr78541.c (main): Likewise. * gcc.dg/asan/use-after-scope-1.c (main): Likewise. * gcc.dg/asan/use-after-scope-10.c (main): Likewise. * gcc.dg/asan/use-after-scope-2.c (main): Likewise. * gcc.dg/asan/use-after-scope-3.c (main): Likewise. * gcc.dg/asan/use-after-scope-5.c (main): Likewise. * gcc.dg/asan/use-after-scope-9.c (main): Likewise. From-SVN: r264951 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 430b614d0d7..4ccb6e1138e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2018-10-09 Martin Liska + + * asan.c (asan_emit_stack_protection): If a stack variable + is located in a same file as current function, then emit + line info into variable definition string. + 2018-10-08 Eric Botcazou * print-rtl.c (rtx_writer::print_rtx_operand_code_i): Print column diff --git a/gcc/asan.c b/gcc/asan.c index 235e219479d..b2c41187b91 100644 --- a/gcc/asan.c +++ b/gcc/asan.c @@ -1269,6 +1269,9 @@ asan_emit_stack_protection (rtx base, rtx pbase, unsigned int alignb, if (shadow_ptr_types[0] == NULL_TREE) asan_init_shadow_ptr_types (); + expanded_location cfun_xloc + = expand_location (DECL_SOURCE_LOCATION (current_function_decl)); + /* First of all, prepare the description string. */ pretty_printer asan_pp; @@ -1281,15 +1284,30 @@ asan_emit_stack_protection (rtx base, rtx pbase, unsigned int alignb, pp_space (&asan_pp); pp_wide_integer (&asan_pp, offsets[l - 1] - offsets[l]); pp_space (&asan_pp); + + expanded_location xloc + = expand_location (DECL_SOURCE_LOCATION (decl)); + char location[32]; + + if (xloc.file == cfun_xloc.file) + sprintf (location, ":%d", xloc.line); + else + location[0] = '\0'; + if (DECL_P (decl) && DECL_NAME (decl)) { - pp_decimal_int (&asan_pp, IDENTIFIER_LENGTH (DECL_NAME (decl))); + unsigned idlen + = IDENTIFIER_LENGTH (DECL_NAME (decl)) + strlen (location); + pp_decimal_int (&asan_pp, idlen); pp_space (&asan_pp); pp_tree_identifier (&asan_pp, DECL_NAME (decl)); + pp_string (&asan_pp, location); } else pp_string (&asan_pp, "9 "); - pp_space (&asan_pp); + + if (l > 2) + pp_space (&asan_pp); } str_cst = asan_pp_string (&asan_pp); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 6a8605b2c7a..eed63b24316 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,26 @@ +2018-10-09 Martin Liska + + * c-c++-common/asan/pr64820.c: Add line number to scanned + pattern. + * c-c++-common/asan/use-after-return-1.c: Likewise. + * g++.dg/asan/function-argument-1.C (main): Likewise. + * g++.dg/asan/function-argument-2.C (main): Likewise. + * g++.dg/asan/function-argument-3.C (main): Likewise. + * g++.dg/asan/use-after-scope-1.C (main): Likewise. + * g++.dg/asan/use-after-scope-2.C (main): Likewise. + * g++.dg/asan/use-after-scope-types-1.C (main): Likewise. + * g++.dg/asan/use-after-scope-types-2.C (main): Likewise. + * g++.dg/asan/use-after-scope-types-3.C (main): Likewise. + * g++.dg/asan/use-after-scope-types-4.C (main): Likewise. + * g++.dg/asan/use-after-scope-types-5.C (main): Likewise. + * gcc.dg/asan/pr78541.c (main): Likewise. + * gcc.dg/asan/use-after-scope-1.c (main): Likewise. + * gcc.dg/asan/use-after-scope-10.c (main): Likewise. + * gcc.dg/asan/use-after-scope-2.c (main): Likewise. + * gcc.dg/asan/use-after-scope-3.c (main): Likewise. + * gcc.dg/asan/use-after-scope-5.c (main): Likewise. + * gcc.dg/asan/use-after-scope-9.c (main): Likewise. + 2018-10-09 Paul Thomas PR fortran/87151 diff --git a/gcc/testsuite/c-c++-common/asan/pr64820.c b/gcc/testsuite/c-c++-common/asan/pr64820.c index 885a6621491..a00debf3588 100644 --- a/gcc/testsuite/c-c++-common/asan/pr64820.c +++ b/gcc/testsuite/c-c++-common/asan/pr64820.c @@ -28,4 +28,4 @@ int main(int argc, char **argv) { /* { dg-output "WRITE of size 1 at .* thread T0.*" } */ /* { dg-output " #0.*(Func2)?.*pr64820.(c:21)?.*" } */ /* { dg-output "is located in stack of thread T0 at offset.*" } */ -/* { dg-output "\'local\' <== Memory access at offset 32 is inside this variable" } */ +/* { dg-output "\'local\' \\(line 14\\) <== Memory access at offset 32 is inside this variable" } */ diff --git a/gcc/testsuite/c-c++-common/asan/use-after-return-1.c b/gcc/testsuite/c-c++-common/asan/use-after-return-1.c index 49933e531b9..e1bb18a5743 100644 --- a/gcc/testsuite/c-c++-common/asan/use-after-return-1.c +++ b/gcc/testsuite/c-c++-common/asan/use-after-return-1.c @@ -50,4 +50,4 @@ int main(int argc, char **argv) { /* { dg-output "WRITE of size 1 at .* thread T0.*" } */ /* { dg-output " #0.*(Func2)?.*use-after-return-1.(c:31)?.*" } */ /* { dg-output "is located in stack of thread T0 at offset.*" } */ -/* { dg-output "\'local\' <== Memory access at offset 32 is inside this variable" } */ +/* { dg-output "\'local\' \\(line 24\\) <== Memory access at offset 32 is inside this variable" } */ diff --git a/gcc/testsuite/g++.dg/asan/function-argument-1.C b/gcc/testsuite/g++.dg/asan/function-argument-1.C index bdbb37a44a4..f421ad68b5d 100644 --- a/gcc/testsuite/g++.dg/asan/function-argument-1.C +++ b/gcc/testsuite/g++.dg/asan/function-argument-1.C @@ -28,4 +28,4 @@ main () // { dg-output "ERROR: AddressSanitizer: stack-buffer-underflow on address.*(\n|\r\n|\r)" } // { dg-output "READ of size . at.*" } -// { dg-output ".*'arg' <== Memory access at offset \[0-9\]* underflows this variable.*" } +// { dg-output ".*'arg' \\(line 18\\) <== Memory access at offset \[0-9\]* underflows this variable.*" } diff --git a/gcc/testsuite/g++.dg/asan/function-argument-2.C b/gcc/testsuite/g++.dg/asan/function-argument-2.C index 3a7c33bdaaa..bdd3dc6e49f 100644 --- a/gcc/testsuite/g++.dg/asan/function-argument-2.C +++ b/gcc/testsuite/g++.dg/asan/function-argument-2.C @@ -21,4 +21,4 @@ main () // { dg-output "ERROR: AddressSanitizer: stack-buffer-overflow on address.*(\n|\r\n|\r)" } // { dg-output "READ of size . at.*" } -// { dg-output ".*'arg' <== Memory access at offset \[0-9\]* partially overflows this variable.*" } +// { dg-output ".*'arg' \\(line 11\\) <== Memory access at offset \[0-9\]* partially overflows this variable.*" } diff --git a/gcc/testsuite/g++.dg/asan/function-argument-3.C b/gcc/testsuite/g++.dg/asan/function-argument-3.C index 6994b6df1c8..26b3f9268af 100644 --- a/gcc/testsuite/g++.dg/asan/function-argument-3.C +++ b/gcc/testsuite/g++.dg/asan/function-argument-3.C @@ -25,4 +25,4 @@ main () // { dg-output "ERROR: AddressSanitizer: stack-buffer-overflow on address.*(\n|\r\n|\r)" } // { dg-output "READ of size . at.*" } -// { dg-output ".*'arg' <== Memory access at offset \[0-9\]* overflows this variable.*" } +// { dg-output ".*'arg' \\(line 14\\) <== Memory access at offset \[0-9\]* overflows this variable.*" } diff --git a/gcc/testsuite/g++.dg/asan/use-after-scope-1.C b/gcc/testsuite/g++.dg/asan/use-after-scope-1.C index fd875ad7a13..4cbc5345b57 100644 --- a/gcc/testsuite/g++.dg/asan/use-after-scope-1.C +++ b/gcc/testsuite/g++.dg/asan/use-after-scope-1.C @@ -18,4 +18,4 @@ int main() { // { dg-output "ERROR: AddressSanitizer: stack-use-after-scope on address.*(\n|\r\n|\r)" } // { dg-output "READ of size 4 at.*" } -// { dg-output ".*'v' <== Memory access at offset \[0-9\]* is inside this variable.*" } +// { dg-output ".*'v' \\(line 9\\) <== Memory access at offset \[0-9\]* is inside this variable.*" } diff --git a/gcc/testsuite/g++.dg/asan/use-after-scope-2.C b/gcc/testsuite/g++.dg/asan/use-after-scope-2.C index 92a4bd13029..5d11834dfeb 100644 --- a/gcc/testsuite/g++.dg/asan/use-after-scope-2.C +++ b/gcc/testsuite/g++.dg/asan/use-after-scope-2.C @@ -37,4 +37,4 @@ int main(int argc, char **argv) // { dg-output "ERROR: AddressSanitizer: stack-use-after-scope on address.*(\n|\r\n|\r)" } // { dg-output "READ of size 4 at.*" } -// { dg-output ".*'x' <== Memory access at offset \[0-9\]* is inside this variable.*" } +// { dg-output ".*'x' \\(line 31\\) <== Memory access at offset \[0-9\]* is inside this variable.*" } diff --git a/gcc/testsuite/g++.dg/asan/use-after-scope-types-1.C b/gcc/testsuite/g++.dg/asan/use-after-scope-types-1.C index bedcfa4edb9..180804ca81d 100644 --- a/gcc/testsuite/g++.dg/asan/use-after-scope-types-1.C +++ b/gcc/testsuite/g++.dg/asan/use-after-scope-types-1.C @@ -14,4 +14,4 @@ int main() // { dg-output "ERROR: AddressSanitizer: stack-use-after-scope on address.*(\n|\r\n|\r)" } // { dg-output "WRITE of size " } -// { dg-output ".*'x' <== Memory access at offset \[0-9\]* is inside this variable.*" } +// { dg-output ".*'x' \\(line 25\\) <== Memory access at offset \[0-9\]* is inside this variable.*" } diff --git a/gcc/testsuite/g++.dg/asan/use-after-scope-types-2.C b/gcc/testsuite/g++.dg/asan/use-after-scope-types-2.C index 75a01d9eb36..172c5c03b2e 100644 --- a/gcc/testsuite/g++.dg/asan/use-after-scope-types-2.C +++ b/gcc/testsuite/g++.dg/asan/use-after-scope-types-2.C @@ -14,4 +14,4 @@ int main() // { dg-output "ERROR: AddressSanitizer: stack-use-after-scope on address.*(\n|\r\n|\r)" } // { dg-output "WRITE of size " } -// { dg-output ".*'x' <== Memory access at offset \[0-9\]* is inside this variable.*" } +// { dg-output ".*'x' \\(line 25\\) <== Memory access at offset \[0-9\]* is inside this variable.*" } diff --git a/gcc/testsuite/g++.dg/asan/use-after-scope-types-3.C b/gcc/testsuite/g++.dg/asan/use-after-scope-types-3.C index 3350c69c6ae..d4ad0fcc3a5 100644 --- a/gcc/testsuite/g++.dg/asan/use-after-scope-types-3.C +++ b/gcc/testsuite/g++.dg/asan/use-after-scope-types-3.C @@ -14,4 +14,4 @@ int main() // { dg-output "ERROR: AddressSanitizer: stack-use-after-scope on address.*(\n|\r\n|\r)" } // { dg-output "WRITE of size " } -// { dg-output ".*'x' <== Memory access at offset \[0-9\]* is inside this variable.*" } +// { dg-output ".*'x' \\(line 25\\) <== Memory access at offset \[0-9\]* is inside this variable.*" } diff --git a/gcc/testsuite/g++.dg/asan/use-after-scope-types-4.C b/gcc/testsuite/g++.dg/asan/use-after-scope-types-4.C index 44f4d3b09f5..7638107d2cc 100644 --- a/gcc/testsuite/g++.dg/asan/use-after-scope-types-4.C +++ b/gcc/testsuite/g++.dg/asan/use-after-scope-types-4.C @@ -14,4 +14,4 @@ int main() // { dg-output "ERROR: AddressSanitizer: stack-use-after-scope on address.*(\n|\r\n|\r)" } // { dg-output "READ of size " } -// { dg-output ".*'x' <== Memory access at offset \[0-9\]* is inside this variable.*" } +// { dg-output ".*'x' \\(line 25\\) <== Memory access at offset \[0-9\]* is inside this variable.*" } diff --git a/gcc/testsuite/g++.dg/asan/use-after-scope-types-5.C b/gcc/testsuite/g++.dg/asan/use-after-scope-types-5.C index 42abc2a0ccd..fe7c57fc37b 100644 --- a/gcc/testsuite/g++.dg/asan/use-after-scope-types-5.C +++ b/gcc/testsuite/g++.dg/asan/use-after-scope-types-5.C @@ -14,4 +14,4 @@ int main() // { dg-output "ERROR: AddressSanitizer: stack-use-after-scope on address.*(\n|\r\n|\r)" } // { dg-output "WRITE of size " } -// { dg-output ".*'x' <== Memory access at offset \[0-9\]* is inside this variable.*" } +// { dg-output ".*'x' \\(line 25\\) <== Memory access at offset \[0-9\]* is inside this variable.*" } diff --git a/gcc/testsuite/gcc.dg/asan/pr78541.c b/gcc/testsuite/gcc.dg/asan/pr78541.c index fb02082f3d9..612c7e58071 100644 --- a/gcc/testsuite/gcc.dg/asan/pr78541.c +++ b/gcc/testsuite/gcc.dg/asan/pr78541.c @@ -22,4 +22,4 @@ int main() // { dg-output "ERROR: AddressSanitizer: stack-use-after-scope on address.*(\n|\r\n|\r)" } // { dg-output "READ of size.*" } -// { dg-output ".*'x' <== Memory access at offset \[0-9\]* is inside this variable.*" } +// { dg-output ".*'x' \\(line 9\\) <== Memory access at offset \[0-9\]* is inside this variable.*" } diff --git a/gcc/testsuite/gcc.dg/asan/use-after-scope-1.c b/gcc/testsuite/gcc.dg/asan/use-after-scope-1.c index bdbc97becae..19a8379f4af 100644 --- a/gcc/testsuite/gcc.dg/asan/use-after-scope-1.c +++ b/gcc/testsuite/gcc.dg/asan/use-after-scope-1.c @@ -15,4 +15,4 @@ main (void) // { dg-output "ERROR: AddressSanitizer: stack-use-after-scope on address.*(\n|\r\n|\r)" } // { dg-output "READ of size 1 at.*" } -// { dg-output ".*'my_char' <== Memory access at offset \[0-9\]* is inside this variable.*" } +// { dg-output ".*'my_char' \\(line 9\\) <== Memory access at offset \[0-9\]* is inside this variable.*" } diff --git a/gcc/testsuite/gcc.dg/asan/use-after-scope-10.c b/gcc/testsuite/gcc.dg/asan/use-after-scope-10.c index 60f45768019..e4b986ec071 100644 --- a/gcc/testsuite/gcc.dg/asan/use-after-scope-10.c +++ b/gcc/testsuite/gcc.dg/asan/use-after-scope-10.c @@ -20,4 +20,4 @@ main (int argc, char **argv) // { dg-output "ERROR: AddressSanitizer: stack-use-after-scope on address.*(\n|\r\n|\r)" } // { dg-output "WRITE of size .*" } -// { dg-output ".*'a' <== Memory access at offset \[0-9\]* is inside this variable.*" } +// { dg-output ".*'a' \\(line 12\\) <== Memory access at offset \[0-9\]* is inside this variable.*" } diff --git a/gcc/testsuite/gcc.dg/asan/use-after-scope-2.c b/gcc/testsuite/gcc.dg/asan/use-after-scope-2.c index dedb73400cd..101858126ff 100644 --- a/gcc/testsuite/gcc.dg/asan/use-after-scope-2.c +++ b/gcc/testsuite/gcc.dg/asan/use-after-scope-2.c @@ -44,4 +44,4 @@ main (void) // { dg-output "ERROR: AddressSanitizer: stack-use-after-scope on address.*(\n|\r\n|\r)" } // { dg-output "READ of size 4 at.*" } -// { dg-output ".*'c' <== Memory access at offset \[0-9\]* is inside this variable.*" } +// { dg-output ".*'c' \\(line 37\\) <== Memory access at offset \[0-9\]* is inside this variable.*" } diff --git a/gcc/testsuite/gcc.dg/asan/use-after-scope-3.c b/gcc/testsuite/gcc.dg/asan/use-after-scope-3.c index ddf3c04eb45..8f8533760c5 100644 --- a/gcc/testsuite/gcc.dg/asan/use-after-scope-3.c +++ b/gcc/testsuite/gcc.dg/asan/use-after-scope-3.c @@ -18,4 +18,4 @@ main (void) // { dg-output "ERROR: AddressSanitizer: stack-use-after-scope on address.*(\n|\r\n|\r)" } // { dg-output "WRITE of size 1 at.*" } -// { dg-output ".*'my_char' <== Memory access at offset \[0-9\]* overflows this variable.*" } +// { dg-output ".*'my_char' \\(line 11\\) <== Memory access at offset \[0-9\]* overflows this variable.*" } diff --git a/gcc/testsuite/gcc.dg/asan/use-after-scope-5.c b/gcc/testsuite/gcc.dg/asan/use-after-scope-5.c index b53712daa34..1c2fafb43be 100644 --- a/gcc/testsuite/gcc.dg/asan/use-after-scope-5.c +++ b/gcc/testsuite/gcc.dg/asan/use-after-scope-5.c @@ -24,4 +24,4 @@ main (int argc, char **argv) // { dg-output "ERROR: AddressSanitizer: stack-use-after-scope on address.*(\n|\r\n|\r)" } // { dg-output "READ of size 4 at.*" } -// { dg-output ".*'values' <== Memory access at offset \[0-9\]* is inside this variable.*" } +// { dg-output ".*'values' \\(line 10\\) <== Memory access at offset \[0-9\]* is inside this variable.*" } diff --git a/gcc/testsuite/gcc.dg/asan/use-after-scope-9.c b/gcc/testsuite/gcc.dg/asan/use-after-scope-9.c index c3e4da55aad..853765bf3cc 100644 --- a/gcc/testsuite/gcc.dg/asan/use-after-scope-9.c +++ b/gcc/testsuite/gcc.dg/asan/use-after-scope-9.c @@ -20,4 +20,4 @@ main (int argc, char **argv) // { dg-final { scan-tree-dump-times {= \.ASAN_POISON \(\)} 1 "asan1" } } // { dg-output "ERROR: AddressSanitizer: stack-use-after-scope on address.*(\n|\r\n|\r)" } // { dg-output "READ of size .*" } -// { dg-output ".*'a' <== Memory access at offset \[0-9\]* is inside this variable.*" } +// { dg-output ".*'a' \\(line 12\\) <== Memory access at offset \[0-9\]* is inside this variable.*" }