diff options
Diffstat (limited to 'gdb/testsuite/gdb.dwarf2/dw2-step-between-inline-func-blocks.c')
-rw-r--r-- | gdb/testsuite/gdb.dwarf2/dw2-step-between-inline-func-blocks.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.dwarf2/dw2-step-between-inline-func-blocks.c b/gdb/testsuite/gdb.dwarf2/dw2-step-between-inline-func-blocks.c new file mode 100644 index 0000000..0e0370e --- /dev/null +++ b/gdb/testsuite/gdb.dwarf2/dw2-step-between-inline-func-blocks.c @@ -0,0 +1,100 @@ +/* This testcase is part of GDB, the GNU debugger. + + Copyright 2024-2025 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/>. */ + +/* Used to insert labels within function foo. */ +#define LABEL(N) asm ("foo_label_" #N ": .globl foo_label_" #N) + +volatile int global_var = 0; + +/* The contents of this '#if 0' block exist so the generated debug can + point to these as the source lines. */ +#if 0 + +void +bar (void) /* bar decl line */ +{ + /* bar line 1 */ + /* bar line 2 */ + /* bar line 3 */ + /* bar line 4 */ +} + +void +foo (void) /* foo decl line */ +{ + /* foo line 1 */ + /* foo line 2 */ + /* foo line 3 */ + /* foo line 4 */ +} + +#endif + +extern void *foo_label_6 (void); + +void +foo (void) +{ + /* This label is used to find the start of 'foo' when generating the + debug information. */ + asm ("foo_label: .globl foo_label"); + ++global_var; + + LABEL (1); + ++global_var; + + LABEL (2); + ++global_var; + + LABEL (3); + ++global_var; + + /* This goto will always trigger, but we make it conditional so that the + compiler doesn't optimise out the code between the goto and the + destination. + + Also 'goto *ADDR' is a GCC extension, but it is critical that the + destination address be a global label so that we can generate DWARF + that has ranges that start exactly at the destination address. */ + if (global_var > 0) + goto *(&foo_label_6); + + LABEL (4); + ++global_var; + + LABEL (5); + ++global_var; + + LABEL (6); + ++global_var; + + LABEL (7); + ++global_var; + + LABEL (8); + ++global_var; + + LABEL (9); + ++global_var; +} + +int +main (void) +{ + asm ("main_label: .globl main_label"); + foo (); +} |