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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
120 lines
3.5 KiB
C
120 lines
3.5 KiB
C
/* Dump registers.
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Copyright (C) 2000-2022 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 <sgidefs.h>
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#include <sys/uio.h>
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#include <_itoa.h>
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#if _MIPS_SIM == _ABIO32
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# define CTX_TYPE struct sigcontext *
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# define CTX_REG(ctx, i) ((ctx)->sc_regs[(i)])
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# define CTX_PC(ctx) ((ctx)->sc_pc)
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# define CTX_MDHI(ctx) ((ctx)->sc_mdhi)
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# define CTX_MDLO(ctx) ((ctx)->sc_mdlo)
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# define REG_HEX_SIZE 8
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#else
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# define CTX_TYPE ucontext_t *
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# define CTX_REG(ctx, i) ((ctx)->uc_mcontext.gregs[(i)])
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# define CTX_PC(ctx) ((ctx)->uc_mcontext.pc)
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# define CTX_MDHI(ctx) ((ctx)->uc_mcontext.mdhi)
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# define CTX_MDLO(ctx) ((ctx)->uc_mcontext.mdhi)
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# define REG_HEX_SIZE 16
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#endif
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/* We will print the register dump in this format:
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R0 XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
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R8 XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
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R16 XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
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R24 XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
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pc lo hi
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XXXXXXXX XXXXXXXX XXXXXXXX
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The FPU registers will not be printed.
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*/
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static void
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hexvalue (_ITOA_WORD_TYPE 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, CTX_TYPE ctx)
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{
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char regs[38][REG_HEX_SIZE];
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struct iovec iov[38 * 2 + 10];
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size_t nr = 0;
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int i;
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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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for (i = 0; i < 32; i++)
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hexvalue (CTX_REG (ctx, i), regs[i], REG_HEX_SIZE);
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hexvalue (CTX_PC (ctx), regs[32], REG_HEX_SIZE);
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hexvalue (CTX_MDHI (ctx), regs[33], REG_HEX_SIZE);
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hexvalue (CTX_MDLO (ctx), regs[34], REG_HEX_SIZE);
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/* Generate the output. */
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ADD_STRING ("Register dump:\n\n R0 ");
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for (i = 0; i < 8; i++)
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{
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ADD_MEM (regs[i], REG_HEX_SIZE);
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ADD_STRING (" ");
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}
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ADD_STRING ("\n R8 ");
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for (i = 8; i < 16; i++)
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{
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ADD_MEM (regs[i], REG_HEX_SIZE);
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ADD_STRING (" ");
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}
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ADD_STRING ("\n R16 ");
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for (i = 16; i < 24; i++)
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{
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ADD_MEM (regs[i], REG_HEX_SIZE);
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ADD_STRING (" ");
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}
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ADD_STRING ("\n R24 ");
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for (i = 24; i < 32; i++)
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{
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ADD_MEM (regs[i], REG_HEX_SIZE);
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ADD_STRING (" ");
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}
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ADD_STRING ("\n pc lo hi\n ");
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for (i = 32; i < 35; i++)
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{
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ADD_MEM (regs[i], REG_HEX_SIZE);
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ADD_STRING (" ");
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}
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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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