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581c785bf3
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
135 lines
4.1 KiB
C
135 lines
4.1 KiB
C
/* Dump registers.
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Copyright (C) 1998-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<https://www.gnu.org/licenses/>. */
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#include <sys/uio.h>
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#include <_itoa.h>
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#include <sys/ucontext.h>
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/* We will print the register dump in this format:
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R0: XXXXXXXX R1: XXXXXXXX R2: XXXXXXXX R3: XXXXXXXX
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R4: XXXXXXXX R5: XXXXXXXX R6: XXXXXXXX R7: XXXXXXXX
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R8: XXXXXXXX R9: XXXXXXXX SL: XXXXXXXX FP: XXXXXXXX
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IP: XXXXXXXX SP: XXXXXXXX LR: XXXXXXXX PC: XXXXXXXX
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CPSR: XXXXXXXX
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Trap: XXXXXXXX Error: XXXXXXXX OldMask: XXXXXXXX
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Addr: XXXXXXXX
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*/
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static void
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hexvalue (unsigned long int value, char *buf, size_t len)
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{
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char *cp = _itoa_word (value, buf + len, 16, 0);
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while (cp > buf)
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*--cp = '0';
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}
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static void
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register_dump (int fd, const ucontext_t *ctx)
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{
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char regs[21][8];
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struct iovec iov[97];
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size_t nr = 0;
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#define ADD_STRING(str) \
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iov[nr].iov_base = (char *) str; \
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iov[nr].iov_len = strlen (str); \
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++nr
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#define ADD_MEM(str, len) \
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iov[nr].iov_base = str; \
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iov[nr].iov_len = len; \
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++nr
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/* Generate strings of register contents. */
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hexvalue (ctx->uc_mcontext.arm_r0, regs[0], 8);
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hexvalue (ctx->uc_mcontext.arm_r1, regs[1], 8);
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hexvalue (ctx->uc_mcontext.arm_r2, regs[2], 8);
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hexvalue (ctx->uc_mcontext.arm_r3, regs[3], 8);
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hexvalue (ctx->uc_mcontext.arm_r4, regs[4], 8);
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hexvalue (ctx->uc_mcontext.arm_r5, regs[5], 8);
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hexvalue (ctx->uc_mcontext.arm_r6, regs[6], 8);
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hexvalue (ctx->uc_mcontext.arm_r7, regs[7], 8);
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hexvalue (ctx->uc_mcontext.arm_r8, regs[8], 8);
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hexvalue (ctx->uc_mcontext.arm_r9, regs[9], 8);
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hexvalue (ctx->uc_mcontext.arm_r10, regs[10], 8);
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hexvalue (ctx->uc_mcontext.arm_fp, regs[11], 8);
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hexvalue (ctx->uc_mcontext.arm_ip, regs[12], 8);
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hexvalue (ctx->uc_mcontext.arm_sp, regs[13], 8);
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hexvalue (ctx->uc_mcontext.arm_lr, regs[14], 8);
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hexvalue (ctx->uc_mcontext.arm_pc, regs[15], 8);
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hexvalue (ctx->uc_mcontext.arm_cpsr, regs[16], 8);
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hexvalue (ctx->uc_mcontext.trap_no, regs[17], 8);
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hexvalue (ctx->uc_mcontext.error_code, regs[18], 8);
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hexvalue (ctx->uc_mcontext.oldmask, regs[19], 8);
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hexvalue (ctx->uc_mcontext.fault_address, regs[20], 8);
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/* Generate the output. */
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ADD_STRING ("Register dump:\n\n R0: ");
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ADD_MEM (regs[0], 8);
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ADD_STRING (" R1: ");
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ADD_MEM (regs[1], 8);
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ADD_STRING (" R2: ");
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ADD_MEM (regs[2], 8);
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ADD_STRING (" R3: ");
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ADD_MEM (regs[3], 8);
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ADD_STRING ("\n R4: ");
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ADD_MEM (regs[4], 8);
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ADD_STRING (" R5: ");
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ADD_MEM (regs[5], 8);
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ADD_STRING (" R6: ");
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ADD_MEM (regs[6], 8);
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ADD_STRING (" R7: ");
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ADD_MEM (regs[7], 8);
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ADD_STRING ("\n R8: ");
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ADD_MEM (regs[8], 8);
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ADD_STRING (" R9: ");
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ADD_MEM (regs[9], 8);
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ADD_STRING (" SL: ");
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ADD_MEM (regs[10], 8);
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ADD_STRING (" FP: ");
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ADD_MEM (regs[11], 8);
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ADD_STRING ("\n IP: ");
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ADD_MEM (regs[12], 8);
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ADD_STRING (" SP: ");
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ADD_MEM (regs[13], 8);
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ADD_STRING (" LR: ");
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ADD_MEM (regs[14], 8);
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ADD_STRING (" PC: ");
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ADD_MEM (regs[15], 8);
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ADD_STRING ("\n\n CPSR: ");
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ADD_MEM (regs[16], 8);
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ADD_STRING ("\n\n Trap: ");
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ADD_MEM (regs[17], 8);
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ADD_STRING (" Error: ");
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ADD_MEM (regs[18], 8);
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ADD_STRING (" OldMask: ");
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ADD_MEM (regs[19], 8);
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ADD_STRING ("\n Addr: ");
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ADD_MEM (regs[20], 8);
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ADD_STRING ("\n");
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/* Write the stuff out. */
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writev (fd, iov, nr);
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}
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#define REGISTER_DUMP register_dump (fd, ctx)
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