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[compiler-rt] dump registers for FreeBSD/i386 #99702

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Merged
merged 1 commit into from
Jul 19, 2024
Merged

[compiler-rt] dump registers for FreeBSD/i386 #99702

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12 changes: 12 additions & 0 deletions compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2262,6 +2262,18 @@ void SignalContext::DumpAllRegisters(void *context) {
Printf("r14 = 0x%016llx ", ucontext->uc_mcontext.mc_r14);
Printf("r15 = 0x%016llx ", ucontext->uc_mcontext.mc_r15);
Printf("\n");
# elif defined(__i386__)
Report("Register values:\n");
Printf("eax = 0x%08x ", ucontext->uc_mcontext.mc_eax);
Printf("ebx = 0x%08x ", ucontext->uc_mcontext.mc_ebx);
Printf("ecx = 0x%08x ", ucontext->uc_mcontext.mc_ecx);
Printf("edx = 0x%08x ", ucontext->uc_mcontext.mc_edx);
Printf("\n");
Printf("edi = 0x%08x ", ucontext->uc_mcontext.mc_edi);
Printf("esi = 0x%08x ", ucontext->uc_mcontext.mc_esi);
Printf("ebp = 0x%08x ", ucontext->uc_mcontext.mc_ebp);
Printf("esp = 0x%08x ", ucontext->uc_mcontext.mc_esp);
Printf("\n");
# else
(void)ucontext;
# endif
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17 changes: 17 additions & 0 deletions compiler-rt/test/sanitizer_common/TestCases/FreeBSD/dump_registers_i386.cpp
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@@ -0,0 +1,17 @@
// Check that sanitizer prints registers dump_registers on dump_registers=1
// RUN: %clangxx %s -o %t
// RUN: %env_tool_opts=dump_registers=0 not %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-NODUMP --strict-whitespace
// RUN: not %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-DUMP --strict-whitespace
//
// REQUIRES: i386-target-arch

#include <signal.h>

int main() {
raise(SIGSEGV);
// CHECK-DUMP: Register values
// CHECK-DUMP-NEXT: eax = {{0x[0-9a-f]+}} ebx = {{0x[0-9a-f]+}} ecx = {{0x[0-9a-f]+}} edx = {{0x[0-9a-f]+}}
// CHECK-DUMP-NEXT: edi = {{0x[0-9a-f]+}} esi = {{0x[0-9a-f]+}} ebp = {{0x[0-9a-f]+}} esp = {{0x[0-9a-f]+}}
// CHECK-NODUMP-NOT: Register values
return 0;
}