18819fa6ff
* arm-tdep.h (arm_insert_single_step_breakpoint): Add prototype. * arm-tdep.c (arm_override_mode): New global. (arm_pc_is_thumb): Respect arm_override_mode. Remove single-step execution mode heuristics. (thumb_get_next_pc_raw): Remove INSERT_BKTP argument; always insert second single-step breakpoint if needed, using arm_insert_single_step_breakpoint. (arm_get_next_pc_raw): Remove INSERT_BKTP argument. Only handle ARM execution mode, do not call thumb_get_next_pc_raw. (arm_get_next_pc): Encode execution mode in return value. Call either arm_get_next_pc_raw or thumb_get_next_pc_raw. (arm_insert_single_step_breakpoint): New function. (arm_software_single_step): Call it. * arm-linux-tdep.c (arm_linux_sigreturn_return_addr): Add IS_THUMB argument to return execution mode of sigreturn target. (arm_linux_syscall_next_pc): Use it. (arm_linux_copy_svc): Update call. (arm_linux_software_single_step): Call arm_insert_single_step_breakpoint. gdb/testsuite/ * gdb.arch/thumb-singlestep.S: New file. * gdb.arch/thumb-singlestep.exp: Likewise.
40 lines
1 KiB
ArmAsm
40 lines
1 KiB
ArmAsm
/* Test program with deliberately incorrect execution mode transition
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Copyright 2011 Free Software Foundation, Inc.
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This file is part of GDB.
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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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.text
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.align 2
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.global foo
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.thumb
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/* .thumb_func deliberately omitted */
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foo:
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mov r0,#42
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bx lr
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.text
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.align 2
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.global main
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.thumb
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.thumb_func
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.type main, %function
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main:
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push {r3, lr}
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blx foo
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pop {r3, pc}
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.size main, .-main
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