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runtime: dump registers on Solaris
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Patch by Rainer Orth <[email protected]>.

Fixes https://gcc.gnu.org/PR106813

Change-Id: Ica2b1c5bb7a468d1103904d16cc9b815f2f0bf63
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/581724
Reviewed-by: Ian Lance Taylor <[email protected]>
Reviewed-by: Than McIntosh <[email protected]>
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ianlancetaylor committed Apr 29, 2024
1 parent 1f0c836 commit 60f985a
Showing 1 changed file with 59 additions and 4 deletions.
63 changes: 59 additions & 4 deletions libgo/runtime/go-signal.c
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Original file line number Diff line number Diff line change
Expand Up @@ -216,6 +216,10 @@ getSiginfoCode(siginfo_t *info)
return (uintptr)(info->si_code);
}

#if defined(__sparc__) && defined(__arch64__) && defined(__linux__)
#define gregs mc_gregs
#endif

struct getSiginfoRet {
uintptr sigaddr;
uintptr sigpc;
Expand All @@ -242,9 +246,9 @@ getSiginfo(siginfo_t *info, void *context __attribute__((unused)))
// Use unportable code to pull it from context, and if that fails
// try a stack backtrace across the signal handler.

#if defined(__x86_64__) && defined(__linux__)
#if defined(__x86_64__) && (defined(__linux__) || (defined(__sun__) && defined(__svr4__)))
ret.sigpc = ((ucontext_t*)(context))->uc_mcontext.gregs[REG_RIP];
#elif defined(__i386__) && defined(__linux__)
#elif defined(__i386__) && (defined(__linux__) || (defined(__sun__) && defined(__svr4__)))
ret.sigpc = ((ucontext_t*)(context))->uc_mcontext.gregs[REG_EIP];
#elif defined(__alpha__) && defined(__linux__)
ret.sigpc = ((ucontext_t*)(context))->uc_mcontext.sc_pc;
Expand All @@ -263,6 +267,9 @@ getSiginfo(siginfo_t *info, void *context __attribute__((unused)))
#elif defined(__NetBSD__)
ret.sigpc = _UC_MACHINE_PC(((ucontext_t*)(context)));
#endif
#if defined(__sparc__) && (defined(__linux__) || (defined(__sun__) && defined(__svr4__)))
ret.sigpc = ((ucontext_t*)(context))->uc_mcontext.gregs[REG_PC];
#endif

if (ret.sigpc == 0) {
// Skip getSiginfo/sighandler/sigtrampgo/sigtramp/handler.
Expand All @@ -285,7 +292,7 @@ void dumpregs(siginfo_t *, void *)
void
dumpregs(siginfo_t *info __attribute__((unused)), void *context __attribute__((unused)))
{
#if defined(__x86_64__) && defined(__linux__)
#if defined(__x86_64__) && (defined(__linux__) || (defined(__sun__) && defined(__svr4__)))
{
mcontext_t *m = &((ucontext_t*)(context))->uc_mcontext;

Expand All @@ -306,12 +313,22 @@ dumpregs(siginfo_t *info __attribute__((unused)), void *context __attribute__((u
runtime_printf("r14 %X\n", m->gregs[REG_R14]);
runtime_printf("r15 %X\n", m->gregs[REG_R15]);
runtime_printf("rip %X\n", m->gregs[REG_RIP]);
#if defined(REG_EFL)
runtime_printf("rflags %X\n", m->gregs[REG_EFL]);
#elif defined(REG_RFL)
runtime_printf("rflags %X\n", m->gregs[REG_RFL]);
#endif
#if defined(REG_CSGSFS)
runtime_printf("cs %X\n", m->gregs[REG_CSGSFS] & 0xffff);
runtime_printf("fs %X\n", (m->gregs[REG_CSGSFS] >> 16) & 0xffff);
runtime_printf("gs %X\n", (m->gregs[REG_CSGSFS] >> 32) & 0xffff);
#elif defined(REG_CS) && defined(REG_FS) && defined(REG_GS)
runtime_printf("cs %X\n", m->gregs[REG_CS]);
runtime_printf("fs %X\n", m->gregs[REG_FS]);
runtime_printf("gs %X\n", m->gregs[REG_GS]);
#endif
}
#elif defined(__i386__) && defined(__linux__)
#elif defined(__i386__) && (defined(__linux__) || (defined(__sun__) && defined(__svr4__)))
{
mcontext_t *m = &((ucontext_t*)(context))->uc_mcontext;

Expand Down Expand Up @@ -423,5 +440,43 @@ dumpregs(siginfo_t *info __attribute__((unused)), void *context __attribute__((u
runtime_printf("pc %X\n", m->pc);
runtime_printf("pstate %X\n", m->pstate);
}
#elif defined(__sparc__) && (defined(__linux__) || (defined(__sun__) && defined(__svr4__)))
{
mcontext_t *m = &((ucontext_t*)(context))->uc_mcontext;

#ifdef __sparcv9
#define REG_FMT "%X"
#else
#define REG_FMT "%x"
#endif

#ifdef REG_CCR
runtime_printf("ccr " REG_FMT "\n", m->gregs[REG_CCR]);
#else
runtime_printf("psr " REG_FMT "\n", m->gregs[REG_PSR]);
#endif
runtime_printf("pc " REG_FMT "\n", m->gregs[REG_PC]);
runtime_printf("npc " REG_FMT "\n", m->gregs[REG_nPC]);
runtime_printf("y " REG_FMT "\n", m->gregs[REG_Y]);
runtime_printf("g1 " REG_FMT "\n", m->gregs[REG_G1]);
runtime_printf("g2 " REG_FMT "\n", m->gregs[REG_G2]);
runtime_printf("g3 " REG_FMT "\n", m->gregs[REG_G3]);
runtime_printf("g4 " REG_FMT "\n", m->gregs[REG_G4]);
runtime_printf("g5 " REG_FMT "\n", m->gregs[REG_G5]);
runtime_printf("g6 " REG_FMT "\n", m->gregs[REG_G6]);
runtime_printf("g7 " REG_FMT "\n", m->gregs[REG_G7]);
runtime_printf("o0 " REG_FMT "\n", m->gregs[REG_O0]);
runtime_printf("o1 " REG_FMT "\n", m->gregs[REG_O1]);
runtime_printf("o2 " REG_FMT "\n", m->gregs[REG_O2]);
runtime_printf("o3 " REG_FMT "\n", m->gregs[REG_O3]);
runtime_printf("o4 " REG_FMT "\n", m->gregs[REG_O4]);
runtime_printf("o5 " REG_FMT "\n", m->gregs[REG_O5]);
runtime_printf("o6 " REG_FMT "\n", m->gregs[REG_O6]);
runtime_printf("o7 " REG_FMT "\n", m->gregs[REG_O7]);
#if defined(REG_ASI) && defined(REG_FPRS) && !defined(__linux__)
runtime_printf("asi " REG_FMT "\n", m->gregs[REG_ASI]);
runtime_printf("fprs " REG_FMT "\n", m->gregs[REG_FPRS]);
#endif
}
#endif
}

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