mirror of
https://github.com/tobast/libunwind-eh_elf.git
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Initial revision
This commit is contained in:
hp.com!davidm
parent
30dec34c3a
commit
e6446885f4
9 changed files with 0 additions and 471 deletions
|
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@ -1,74 +0,0 @@
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/* libunwind - a platform-independent unwind library
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Copyright (C) 2004 Hewlett-Packard Co
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Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
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|
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This file is part of libunwind.
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining
|
||||
a copy of this software and associated documentation files (the
|
||||
"Software"), to deal in the Software without restriction, including
|
||||
without limitation the rights to use, copy, modify, merge, publish,
|
||||
distribute, sublicense, and/or sell copies of the Software, and to
|
||||
permit persons to whom the Software is furnished to do so, subject to
|
||||
the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be
|
||||
included in all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
||||
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
||||
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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#include "unwind_i.h"
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PROTECTED int
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unw_is_signal_frame (unw_cursor_t *cursor)
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{
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#ifdef __linux__
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struct cursor *c = (struct cursor *) cursor;
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unw_word_t w0, w1, w2, w3, ip;
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unw_addr_space_t as;
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unw_accessors_t *a;
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void *arg;
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int ret;
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as = c->dwarf.as;
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a = unw_get_accessors (as);
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arg = c->dwarf.as_arg;
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/* Check if IP points at sigreturn() sequence. On Linux, this normally is:
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rt_sigreturn:
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0x34190000 ldi 0, %r25
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0x3414015a ldi __NR_rt_sigreturn,%r20
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0xe4008200 be,l 0x100(%sr2,%r0),%sr0,%r31
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0x08000240 nop
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When a signal interrupts a system call, the first word is instead:
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0x34190002 ldi 1, %r25
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*/
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ip = c->dwarf.ip;
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if (!ip)
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return 0;
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if ((ret = (*a->access_mem) (as, ip, &w0, 0, arg)) < 0
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|| (ret = (*a->access_mem) (as, ip + 4, &w1, 0, arg)) < 0
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|| (ret = (*a->access_mem) (as, ip + 8, &w2, 0, arg)) < 0
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|| (ret = (*a->access_mem) (as, ip + 12, &w3, 0, arg)) < 0)
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{
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Debug (1, "failed to read sigreturn code (ret=%d)\n", ret);
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return ret;
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}
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ret = ((w0 == 0x34190000 || w0 == 0x34190002)
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&& w1 == 0x3414015a && w2 == 0xe4008200 && w3 == 0x08000240);
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Debug (1, "(cursor=%p, ip=0x%08lx) -> %d\n", c, (unsigned) ip, ret);
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return ret;
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#else
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printf ("%s: implement me\n", __FUNCTION__);
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#endif
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return -UNW_ENOINFO;
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}
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@ -1,145 +0,0 @@
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/* libunwind - a platform-independent unwind library
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Copyright (c) 2004 Hewlett-Packard Development Company, L.P.
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Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
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This file is part of libunwind.
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Permission is hereby granted, free of charge, to any person obtaining
|
||||
a copy of this software and associated documentation files (the
|
||||
"Software"), to deal in the Software without restriction, including
|
||||
without limitation the rights to use, copy, modify, merge, publish,
|
||||
distribute, sublicense, and/or sell copies of the Software, and to
|
||||
permit persons to whom the Software is furnished to do so, subject to
|
||||
the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be
|
||||
included in all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
||||
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
||||
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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#include <stdlib.h>
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#include "unwind_i.h"
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#ifndef UNW_REMOTE_ONLY
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#if defined(__linux)
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# include <sys/syscall.h>
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static NORETURN inline long
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my_rt_sigreturn (void *new_sp, int in_syscall)
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{
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register unsigned long r25 __asm__ ("r25") = (in_syscall != 0);
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register unsigned long r20 __asm__ ("r20") = SYS_rt_sigreturn;
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__asm__ __volatile__ ("copy %0, %%sp\n"
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"be,l 0x100(%%sr2,%%r0),%%sr0,%%r31\n"
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"nop"
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:
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: "r"(new_sp), "r"(r20), "r"(r25)
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: "memory");
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abort ();
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}
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#endif /* __linux */
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HIDDEN inline int
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hppa_local_resume (unw_addr_space_t as, unw_cursor_t *cursor, void *arg)
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{
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#if defined(__linux)
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struct cursor *c = (struct cursor *) cursor;
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ucontext_t *uc = c->dwarf.as_arg;
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/* Ensure c->pi is up-to-date. On PA-RISC, it's relatively common to be
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missing DWARF unwind info. We don't want to fail in that case,
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because the frame-chain still would let us do a backtrace at
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least. */
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dwarf_make_proc_info (&c->dwarf);
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if (unlikely (c->sigcontext_format != HPPA_SCF_NONE))
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{
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struct sigcontext *sc = (struct sigcontext *) c->sigcontext_addr;
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Debug (8, "resuming at ip=%x via sigreturn(%p)\n", c->dwarf.ip, sc);
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my_rt_sigreturn (sc, (sc->sc_flags & PARISC_SC_FLAG_IN_SYSCALL) != 0);
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}
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else
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{
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Debug (8, "resuming at ip=%x via setcontext()\n", c->dwarf.ip);
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setcontext (uc);
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}
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#else
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# warning Implement me!
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#endif
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return -UNW_EINVAL;
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}
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#endif /* !UNW_REMOTE_ONLY */
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/* This routine is responsible for copying the register values in
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cursor C and establishing them as the current machine state. */
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static inline int
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establish_machine_state (struct cursor *c)
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{
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int (*access_reg) (unw_addr_space_t, unw_regnum_t, unw_word_t *,
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int write, void *);
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int (*access_fpreg) (unw_addr_space_t, unw_regnum_t, unw_fpreg_t *,
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int write, void *);
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unw_addr_space_t as = c->dwarf.as;
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void *arg = c->dwarf.as_arg;
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unw_fpreg_t fpval;
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unw_word_t val;
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int reg;
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access_reg = as->acc.access_reg;
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access_fpreg = as->acc.access_fpreg;
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Debug (8, "copying out cursor state\n");
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for (reg = 0; reg <= UNW_REG_LAST; ++reg)
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{
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Debug (16, "copying %s %d\n", unw_regname (reg), reg);
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if (unw_is_fpreg (reg))
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{
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if (tdep_access_fpreg (c, reg, &fpval, 0) >= 0)
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(*access_fpreg) (as, reg, &fpval, 1, arg);
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}
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else
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{
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if (tdep_access_reg (c, reg, &val, 0) >= 0)
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(*access_reg) (as, reg, &val, 1, arg);
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}
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}
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return 0;
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}
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PROTECTED int
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unw_resume (unw_cursor_t *cursor)
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{
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struct cursor *c = (struct cursor *) cursor;
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int ret;
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Debug (1, "(cursor=%p)\n", c);
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if (!c->dwarf.ip)
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{
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/* This can happen easily when the frame-chain gets truncated
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due to bad or missing unwind-info. */
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Debug (1, "refusing to resume execution at address 0\n");
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return -UNW_EINVAL;
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}
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if ((ret = establish_machine_state (c)) < 0)
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return ret;
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return (*c->dwarf.as->acc.resume) (c->dwarf.as, (unw_cursor_t *) c,
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c->dwarf.as_arg);
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}
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@ -1,70 +0,0 @@
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/* libunwind - a platform-independent unwind library
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Copyright (C) 2004 Hewlett-Packard Co
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||||
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
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||||
|
||||
This file is part of libunwind.
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining
|
||||
a copy of this software and associated documentation files (the
|
||||
"Software"), to deal in the Software without restriction, including
|
||||
without limitation the rights to use, copy, modify, merge, publish,
|
||||
distribute, sublicense, and/or sell copies of the Software, and to
|
||||
permit persons to whom the Software is furnished to do so, subject to
|
||||
the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be
|
||||
included in all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
||||
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
||||
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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||||
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#define SPILL(n) stw %r##n, (LINUX_UC_MCONTEXT_OFF+LINUX_SC_GR_OFF+4*(n))(%r26)
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#include "offsets.h"
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.align 4
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.protected _Uhppa_getcontext
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.global _Uhppa_getcontext
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.proc
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.callinfo
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_Uhppa_getcontext:
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SPILL (2) /* return-pointer */
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SPILL (3) /* frame pointer */
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SPILL (4) /* 2nd-ary frame pointer */
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SPILL (5) /* preserved register */
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SPILL (6) /* preserved register */
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SPILL (7) /* preserved register */
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SPILL (8) /* preserved register */
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SPILL (9) /* preserved register */
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SPILL (10) /* preserved register */
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SPILL (11) /* preserved register */
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SPILL (12) /* preserved register */
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SPILL (13) /* preserved register */
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SPILL (14) /* preserved register */
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||||
SPILL (15) /* preserved register */
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||||
SPILL (16) /* preserved register */
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SPILL (17) /* preserved register */
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SPILL (18) /* preserved register */
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SPILL (19) /* linkage-table register */
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SPILL (27) /* global-data pointer */
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SPILL (30) /* stack pointer */
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ldo (LINUX_UC_MCONTEXT_OFF+LINUX_SC_FR_OFF)(%r26), %r29
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fstds,ma %fr12, 8(%r29)
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fstds,ma %fr13, 8(%r29)
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fstds,ma %fr14, 8(%r29)
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fstds,ma %fr15, 8(%r29)
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fstds,ma %fr16, 8(%r29)
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fstds,ma %fr17, 8(%r29)
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fstds,ma %fr18, 8(%r29)
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fstds,ma %fr19, 8(%r29)
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||||
fstds,ma %fr20, 8(%r29)
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||||
fstds %fr21, 8(%r29)
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bv,n %r0(%rp)
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.procend
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||||
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@ -1,17 +0,0 @@
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|||
#define LINUX_UC_FLAGS_OFF 0x000
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#define LINUX_UC_LINK_OFF 0x004
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||||
#define LINUX_UC_STACK_OFF 0x008
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||||
#define LINUX_UC_MCONTEXT_OFF 0x018
|
||||
#define LINUX_UC_SIGMASK_OFF 0x1b8
|
||||
|
||||
#define LINUX_SC_FLAGS_OFF 0x000
|
||||
#define LINUX_SC_GR_OFF 0x004
|
||||
#define LINUX_SC_FR_OFF 0x088
|
||||
#define LINUX_SC_IASQ_OFF 0x188
|
||||
#define LINUX_SC_IAOQ_OFF 0x190
|
||||
#define LINUX_SC_SAR_OFF 0x198
|
||||
|
||||
/* The signal frame contains 4 words of space for the sigreturn
|
||||
trampoline, the siginfo structure, and then the sigcontext
|
||||
structure. See include/asm-parisc/compat_rt_sigframe.h. */
|
||||
#define LINUX_RT_SIGFRAME_UC_OFF 0xac
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||||
|
|
@ -1,50 +0,0 @@
|
|||
/* libunwind - a platform-independent unwind library
|
||||
Copyright (c) 2004-2005 Hewlett-Packard Development Company, L.P.
|
||||
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
|
||||
|
||||
This file is part of libunwind.
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining
|
||||
a copy of this software and associated documentation files (the
|
||||
"Software"), to deal in the Software without restriction, including
|
||||
without limitation the rights to use, copy, modify, merge, publish,
|
||||
distribute, sublicense, and/or sell copies of the Software, and to
|
||||
permit persons to whom the Software is furnished to do so, subject to
|
||||
the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be
|
||||
included in all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
||||
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
||||
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
||||
|
||||
#include "unwind_i.h"
|
||||
|
||||
static const char *regname[] =
|
||||
{
|
||||
"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
|
||||
"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
|
||||
"r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
|
||||
"r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
|
||||
"fr0", "fr1", "fr2", "fr3", "fr4", "fr5", "fr6", "fr7",
|
||||
"fr8", "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15",
|
||||
"fr16", "fr17", "fr18", "fr19", "fr20", "fr21", "fr22", "fr23",
|
||||
"fr24", "fr25", "fr26", "fr27", "fr28", "fr29", "fr30", "fr31",
|
||||
"ip",
|
||||
"eh0", "eh1", "eh2", "eh3",
|
||||
"cfa"
|
||||
};
|
||||
|
||||
PROTECTED const char *
|
||||
unw_regname (unw_regnum_t reg)
|
||||
{
|
||||
if (reg < (unw_regnum_t) ARRAY_SIZE (regname))
|
||||
return regname[reg];
|
||||
else
|
||||
return "???";
|
||||
}
|
||||
|
|
@ -1,73 +0,0 @@
|
|||
/* libunwind - a platform-independent unwind library
|
||||
Copyright (C) 2004 Hewlett-Packard Co
|
||||
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
|
||||
|
||||
This file is part of libunwind.
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining
|
||||
a copy of this software and associated documentation files (the
|
||||
"Software"), to deal in the Software without restriction, including
|
||||
without limitation the rights to use, copy, modify, merge, publish,
|
||||
distribute, sublicense, and/or sell copies of the Software, and to
|
||||
permit persons to whom the Software is furnished to do so, subject to
|
||||
the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be
|
||||
included in all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
||||
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
||||
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
||||
|
||||
/* The setcontext() in glibc is a no-op (as of 4 Dec 2004), so we have
|
||||
to implement something useful on our own here. */
|
||||
|
||||
#define FILL(n) ldw (LINUX_UC_MCONTEXT_OFF+LINUX_SC_GR_OFF+4*(n))(%r26),%r##n
|
||||
|
||||
#include "offsets.h"
|
||||
|
||||
.align 4
|
||||
.global _Uhppa_setcontext
|
||||
.protected _Uhppa_setcontext
|
||||
.proc
|
||||
.callinfo
|
||||
_Uhppa_setcontext:
|
||||
FILL (2) /* return-pointer */
|
||||
FILL (3) /* frame pointer */
|
||||
FILL (4) /* 2nd-ary frame pointer */
|
||||
FILL (5) /* preserved register */
|
||||
FILL (6) /* preserved register */
|
||||
FILL (7) /* preserved register */
|
||||
FILL (8) /* preserved register */
|
||||
FILL (9) /* preserved register */
|
||||
FILL (10) /* preserved register */
|
||||
FILL (11) /* preserved register */
|
||||
FILL (12) /* preserved register */
|
||||
FILL (13) /* preserved register */
|
||||
FILL (14) /* preserved register */
|
||||
FILL (15) /* preserved register */
|
||||
FILL (16) /* preserved register */
|
||||
FILL (17) /* preserved register */
|
||||
FILL (18) /* preserved register */
|
||||
FILL (19) /* linkage-table register */
|
||||
FILL (27) /* global-data pointer */
|
||||
FILL (30) /* stack pointer */
|
||||
|
||||
ldo (LINUX_UC_MCONTEXT_OFF+LINUX_SC_FR_OFF)(%r26), %r29
|
||||
fldds,ma 8(%r29), %fr12
|
||||
fldds,ma 8(%r29), %fr13
|
||||
fldds,ma 8(%r29), %fr14
|
||||
fldds,ma 8(%r29), %fr15
|
||||
fldds,ma 8(%r29), %fr16
|
||||
fldds,ma 8(%r29), %fr17
|
||||
fldds,ma 8(%r29), %fr18
|
||||
fldds,ma 8(%r29), %fr19
|
||||
fldds,ma 8(%r29), %fr20
|
||||
fldds 8(%r29), %fr21
|
||||
|
||||
bv,n %r0(%rp)
|
||||
.procend
|
||||
|
|
@ -1,5 +0,0 @@
|
|||
/* We need to get a separate copy of the ELF-code into
|
||||
libunwind-ptrace since it cannot (and must not) have any ELF
|
||||
dependencies on libunwind. */
|
||||
#include "tdep.h" /* get ELFCLASS defined */
|
||||
#include "../elf64.c"
|
||||
|
|
@ -1,33 +0,0 @@
|
|||
/* libunwind - a platform-independent unwind library
|
||||
Copyright (C) 2004-2005 Hewlett-Packard Co
|
||||
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
|
||||
|
||||
This file is part of libunwind.
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining
|
||||
a copy of this software and associated documentation files (the
|
||||
"Software"), to deal in the Software without restriction, including
|
||||
without limitation the rights to use, copy, modify, merge, publish,
|
||||
distribute, sublicense, and/or sell copies of the Software, and to
|
||||
permit persons to whom the Software is furnished to do so, subject to
|
||||
the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be
|
||||
included in all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
||||
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
||||
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
||||
|
||||
.globl _UI_longjmp_cont
|
||||
|
||||
.type _UI_longjmp_cont, @function
|
||||
_UI_longjmp_cont:
|
||||
push %rax /* push target IP as return address */
|
||||
mov %rdx, %rax /* set up return-value */
|
||||
retq
|
||||
.size _UI_longjmp_cont, .-_UI_longjmp_cont
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
.global _UI_setcontext
|
||||
|
||||
_UI_setcontext:
|
||||
retq
|
||||
Loading…
Reference in a new issue