29d73ae48c
* Makefile.in (arm-tdep.o): Update dependencies. * arm-tdep.c (thumb_skip_prologue): Remove. (thumb_analyze_prologue): New function. (arm_skip_prologue): Use thumb_analyze_prologue. (thumb_scan_prologue): Ditto. gdb/testsuite/ * gdb.arch/thumb-prologue.c, gdb.arch/thumb-prologue.exp: New files.
96 lines
2.2 KiB
C
96 lines
2.2 KiB
C
/* Unwinder test program.
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Copyright 2006 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 2 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, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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void tpcs_frame (void);
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int
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main (void)
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{
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tpcs_frame ();
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return 0;
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}
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/* Normally Thumb functions use r7 as the frame pointer. However,
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with the GCC option -mtpcs-frame, they may use fp instead. */
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asm(".text\n"
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" .align 2\n"
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" .thumb_func\n"
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" .code 16\n"
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"tpcs_frame_1:\n"
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" sub sp, #16\n"
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" push {r7}\n"
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" add r7, sp, #20\n"
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" str r7, [sp, #8]\n"
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" mov r7, pc\n"
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" str r7, [sp, #16]\n"
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" mov r7, fp\n"
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" str r7, [sp, #4]\n"
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" mov r7, lr\n"
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" str r7, [sp, #12]\n"
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" add r7, sp, #16\n"
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" mov fp, r7\n"
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" mov r7, sl\n"
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" push {r7}\n"
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/* Trap. */
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" .short 0xdffe\n"
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" pop {r2}\n"
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" mov sl, r2\n"
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" pop {r7}\n"
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" pop {r1, r2}\n"
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" mov fp, r1\n"
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" mov sp, r2\n"
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" bx lr\n"
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" .align 2\n"
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" .thumb_func\n"
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" .code 16\n"
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"tpcs_frame:\n"
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" sub sp, #16\n"
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" push {r7}\n"
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" add r7, sp, #20\n"
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" str r7, [sp, #8]\n"
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" mov r7, pc\n"
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" str r7, [sp, #16]\n"
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" mov r7, fp\n"
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" str r7, [sp, #4]\n"
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" mov r7, lr\n"
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" str r7, [sp, #12]\n"
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" add r7, sp, #16\n"
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" mov fp, r7\n"
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" mov r7, sl\n"
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" push {r7}\n"
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/* Clobber saved regs. */
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" mov r7, #0\n"
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" mov lr, r7\n"
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" bl tpcs_frame_1\n"
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" pop {r2}\n"
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" mov sl, r2\n"
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" pop {r7}\n"
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" pop {r1, r2}\n"
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" mov fp, r1\n"
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" mov sp, r2\n"
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" bx lr\n"
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);
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