From: Mark Kettenis Date: Tue, 4 Feb 2014 12:18:15 +0000 (+0100) Subject: Add support for ELF core files on OpenBSD/sparc64. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=26fd922825675d652176675cb0a8fcf6143a8a5d;p=binutils-gdb.git Add support for ELF core files on OpenBSD/sparc64. gdb/ChangeLog: * sparc64obsd-tdep.c (sparc64obsd_gregset): New variable. (sparc64obsd_supply_gregset): Handle registers sets used in ELF core dumps. (sparc64obsd_init_abi): Adjust minimum size of the general purpose register set used in ELF core dumps. Add floating-point register set. --- diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 07738fa1683..c60aa7cf234 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,11 @@ +2014-02-04 Mark Kettenis + + * sparc64obsd-tdep.c (sparc64obsd_gregset): New variable. + (sparc64obsd_supply_gregset): Handle registers sets used in ELF + core dumps. + (sparc64obsd_init_abi): Adjust minimum size of the general purpose + register set used in ELF core dumps. Add floating-point register set. + 2014-02-03 Kevin Buettner * mn10300-tdep.c (mn10300_dwarf2_reg_to_regnum): Rewrite diff --git a/gdb/sparc64obsd-tdep.c b/gdb/sparc64obsd-tdep.c index efce431ed55..c446aa02b00 100644 --- a/gdb/sparc64obsd-tdep.c +++ b/gdb/sparc64obsd-tdep.c @@ -35,14 +35,30 @@ #include "solib-svr4.h" #include "bsd-uthread.h" -/* OpenBSD uses the traditional NetBSD core file format, even for - ports that use ELF. The core files don't use multiple register - sets. Instead, the general-purpose and floating-point registers - are lumped together in a single section. Unlike on NetBSD, OpenBSD - uses a different layout for its general-purpose registers than the - layout used for ptrace(2). */ +/* Older OpenBSD versions used the traditional NetBSD core file + format, even for ports that use ELF. These core files don't use + multiple register sets. Instead, the general-purpose and + floating-point registers are lumped together in a single section. + Unlike on NetBSD, OpenBSD uses a different layout for its + general-purpose registers than the layout used for ptrace(2). + + Newer OpenBSD versions use ELF core files. Here the register sets + match the ptrace(2) layout. */ /* From . */ +const struct sparc_gregset sparc64obsd_gregset = +{ + 0 * 8, /* "tstate" */ + 1 * 8, /* %pc */ + 2 * 8, /* %npc */ + 3 * 8, /* %y */ + -1, /* %fprs */ + -1, + 5 * 8, /* %g1 */ + 20 * 8, /* %l0 */ + 4 /* sizeof (%y) */ +}; + const struct sparc_gregset sparc64obsd_core_gregset = { 0 * 8, /* "tstate" */ @@ -61,10 +77,24 @@ sparc64obsd_supply_gregset (const struct regset *regset, struct regcache *regcache, int regnum, const void *gregs, size_t len) { - const char *regs = gregs; + const void *fpregs = (char *)gregs + 288; - sparc64_supply_gregset (&sparc64obsd_core_gregset, regcache, regnum, regs); - sparc64_supply_fpregset (&sparc64_bsd_fpregset, regcache, regnum, regs + 288); + if (len < 832) + { + sparc64_supply_gregset (&sparc64obsd_gregset, regcache, regnum, gregs); + return; + } + + sparc64_supply_gregset (&sparc64obsd_core_gregset, regcache, regnum, gregs); + sparc64_supply_fpregset (&sparc64_bsd_fpregset, regcache, regnum, fpregs); +} + +static void +sparc64obsd_supply_fpregset (const struct regset *regset, + struct regcache *regcache, + int regnum, const void *fpregs, size_t len) +{ + sparc64_supply_fpregset (&sparc64_bsd_fpregset, regcache, regnum, fpregs); } @@ -379,7 +409,10 @@ sparc64obsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); tdep->gregset = regset_alloc (gdbarch, sparc64obsd_supply_gregset, NULL); - tdep->sizeof_gregset = 832; + tdep->sizeof_gregset = 288; + + tdep->fpregset = regset_alloc (gdbarch, sparc64obsd_supply_fpregset, NULL); + tdep->sizeof_fpregset = 272; /* Make sure we can single-step "new" syscalls. */ tdep->step_trap = sparcnbsd_step_trap;