aboutsummaryrefslogtreecommitdiff
path: root/source/Plugins/Process/elf-core/ThreadElfCore.h
diff options
context:
space:
mode:
Diffstat (limited to 'source/Plugins/Process/elf-core/ThreadElfCore.h')
-rw-r--r--source/Plugins/Process/elf-core/ThreadElfCore.h296
1 files changed, 166 insertions, 130 deletions
diff --git a/source/Plugins/Process/elf-core/ThreadElfCore.h b/source/Plugins/Process/elf-core/ThreadElfCore.h
index b4e990140675..1957ac243ceb 100644
--- a/source/Plugins/Process/elf-core/ThreadElfCore.h
+++ b/source/Plugins/Process/elf-core/ThreadElfCore.h
@@ -16,168 +16,204 @@
// Other libraries and framework includes
// Project includes
-#include "lldb/Target/Thread.h"
#include "lldb/Core/DataExtractor.h"
+#include "lldb/Target/Thread.h"
-struct compat_timeval
-{
- int64_t tv_sec;
- int32_t tv_usec;
+struct compat_timeval {
+ alignas(8) uint64_t tv_sec;
+ alignas(8) uint64_t tv_usec;
};
// PRSTATUS structure's size differs based on architecture.
-// Currently parsing done only for x86-64 architecture by
-// simply reading data from the buffer.
-// The following macros are used to specify the size.
-// Calculating size using sizeof() wont work because of padding.
-#define ELFLINUXPRSTATUS64_SIZE (112)
-#define ELFLINUXPRPSINFO64_SIZE (132)
+// This is the layout in the x86-64 arch.
+// In the i386 case we parse it manually and fill it again
+// in the same structure
+// The gp registers are also a part of this struct, but they are handled
+// separately
#undef si_signo
#undef si_code
#undef si_errno
-struct ELFLinuxPrStatus
-{
- int32_t si_signo;
- int32_t si_code;
- int32_t si_errno;
-
- int16_t pr_cursig;
-
- uint64_t pr_sigpend;
- uint64_t pr_sighold;
-
- uint32_t pr_pid;
- uint32_t pr_ppid;
- uint32_t pr_pgrp;
- uint32_t pr_sid;
-
- compat_timeval pr_utime;
- compat_timeval pr_stime;
- compat_timeval pr_cutime;
- compat_timeval pr_cstime;
-
- ELFLinuxPrStatus();
-
- bool
- Parse(lldb_private::DataExtractor &data, lldb_private::ArchSpec &arch);
-
- static size_t
- GetSize(lldb_private::ArchSpec &arch)
- {
- switch(arch.GetCore())
- {
- case lldb_private::ArchSpec::eCore_s390x_generic:
- case lldb_private::ArchSpec::eCore_x86_64_x86_64:
- return ELFLINUXPRSTATUS64_SIZE;
- default:
- return 0;
- }
+struct ELFLinuxPrStatus {
+ int32_t si_signo;
+ int32_t si_code;
+ int32_t si_errno;
+
+ int16_t pr_cursig;
+
+ alignas(8) uint64_t pr_sigpend;
+ alignas(8) uint64_t pr_sighold;
+
+ uint32_t pr_pid;
+ uint32_t pr_ppid;
+ uint32_t pr_pgrp;
+ uint32_t pr_sid;
+
+ compat_timeval pr_utime;
+ compat_timeval pr_stime;
+ compat_timeval pr_cutime;
+ compat_timeval pr_cstime;
+
+ ELFLinuxPrStatus();
+
+ lldb_private::Error Parse(lldb_private::DataExtractor &data,
+ lldb_private::ArchSpec &arch);
+
+ // Return the bytesize of the structure
+ // 64 bit - just sizeof
+ // 32 bit - hardcoded because we are reusing the struct, but some of the
+ // members are smaller -
+ // so the layout is not the same
+ static size_t GetSize(lldb_private::ArchSpec &arch) {
+ switch (arch.GetCore()) {
+ case lldb_private::ArchSpec::eCore_s390x_generic:
+ case lldb_private::ArchSpec::eCore_x86_64_x86_64:
+ return sizeof(ELFLinuxPrStatus);
+ case lldb_private::ArchSpec::eCore_x86_32_i386:
+ case lldb_private::ArchSpec::eCore_x86_32_i486:
+ return 72;
+ default:
+ return 0;
+ }
+ }
+};
+
+static_assert(sizeof(ELFLinuxPrStatus) == 112,
+ "sizeof ELFLinuxPrStatus is not correct!");
+
+struct ELFLinuxSigInfo {
+ int32_t si_signo;
+ int32_t si_code;
+ int32_t si_errno;
+
+ ELFLinuxSigInfo();
+
+ lldb_private::Error Parse(lldb_private::DataExtractor &data,
+ const lldb_private::ArchSpec &arch);
+
+ // Return the bytesize of the structure
+ // 64 bit - just sizeof
+ // 32 bit - hardcoded because we are reusing the struct, but some of the
+ // members are smaller -
+ // so the layout is not the same
+ static size_t GetSize(const lldb_private::ArchSpec &arch) {
+ switch (arch.GetCore()) {
+ case lldb_private::ArchSpec::eCore_x86_64_x86_64:
+ return sizeof(ELFLinuxSigInfo);
+ case lldb_private::ArchSpec::eCore_s390x_generic:
+ case lldb_private::ArchSpec::eCore_x86_32_i386:
+ case lldb_private::ArchSpec::eCore_x86_32_i486:
+ return 12;
+ default:
+ return 0;
}
+ }
};
-struct ELFLinuxPrPsInfo
-{
- char pr_state;
- char pr_sname;
- char pr_zomb;
- char pr_nice;
- uint64_t pr_flag;
- uint32_t pr_uid;
- uint32_t pr_gid;
- int32_t pr_pid;
- int32_t pr_ppid;
- int32_t pr_pgrp;
- int32_t pr_sid;
- char pr_fname[16];
- char pr_psargs[80];
-
- ELFLinuxPrPsInfo();
-
- bool
- Parse(lldb_private::DataExtractor &data, lldb_private::ArchSpec &arch);
-
- static size_t
- GetSize(lldb_private::ArchSpec &arch)
- {
- switch(arch.GetCore())
- {
- case lldb_private::ArchSpec::eCore_s390x_generic:
- case lldb_private::ArchSpec::eCore_x86_64_x86_64:
- return ELFLINUXPRPSINFO64_SIZE;
- default:
- return 0;
- }
+static_assert(sizeof(ELFLinuxSigInfo) == 12,
+ "sizeof ELFLinuxSigInfo is not correct!");
+
+// PRPSINFO structure's size differs based on architecture.
+// This is the layout in the x86-64 arch case.
+// In the i386 case we parse it manually and fill it again
+// in the same structure
+struct ELFLinuxPrPsInfo {
+ char pr_state;
+ char pr_sname;
+ char pr_zomb;
+ char pr_nice;
+ alignas(8) uint64_t pr_flag;
+ uint32_t pr_uid;
+ uint32_t pr_gid;
+ int32_t pr_pid;
+ int32_t pr_ppid;
+ int32_t pr_pgrp;
+ int32_t pr_sid;
+ char pr_fname[16];
+ char pr_psargs[80];
+
+ ELFLinuxPrPsInfo();
+
+ lldb_private::Error Parse(lldb_private::DataExtractor &data,
+ lldb_private::ArchSpec &arch);
+
+ // Return the bytesize of the structure
+ // 64 bit - just sizeof
+ // 32 bit - hardcoded because we are reusing the struct, but some of the
+ // members are smaller -
+ // so the layout is not the same
+ static size_t GetSize(lldb_private::ArchSpec &arch) {
+ switch (arch.GetCore()) {
+ case lldb_private::ArchSpec::eCore_s390x_generic:
+ case lldb_private::ArchSpec::eCore_x86_64_x86_64:
+ return sizeof(ELFLinuxPrPsInfo);
+ case lldb_private::ArchSpec::eCore_x86_32_i386:
+ case lldb_private::ArchSpec::eCore_x86_32_i486:
+ return 124;
+ default:
+ return 0;
}
+ }
};
-struct ThreadData
-{
- lldb_private::DataExtractor gpregset;
- lldb_private::DataExtractor fpregset;
- lldb_private::DataExtractor vregset;
- lldb::tid_t tid;
- int signo;
- std::string name;
+static_assert(sizeof(ELFLinuxPrPsInfo) == 136,
+ "sizeof ELFLinuxPrPsInfo is not correct!");
+
+struct ThreadData {
+ lldb_private::DataExtractor gpregset;
+ lldb_private::DataExtractor fpregset;
+ lldb_private::DataExtractor vregset;
+ lldb::tid_t tid;
+ int signo = 0;
+ int prstatus_sig = 0;
+ std::string name;
};
-class ThreadElfCore : public lldb_private::Thread
-{
+class ThreadElfCore : public lldb_private::Thread {
public:
- ThreadElfCore (lldb_private::Process &process, const ThreadData &td);
+ ThreadElfCore(lldb_private::Process &process, const ThreadData &td);
- ~ThreadElfCore() override;
+ ~ThreadElfCore() override;
- void
- RefreshStateAfterStop() override;
+ void RefreshStateAfterStop() override;
- lldb::RegisterContextSP
- GetRegisterContext() override;
+ lldb::RegisterContextSP GetRegisterContext() override;
- lldb::RegisterContextSP
- CreateRegisterContextForFrame(lldb_private::StackFrame *frame) override;
+ lldb::RegisterContextSP
+ CreateRegisterContextForFrame(lldb_private::StackFrame *frame) override;
- void
- ClearStackFrames() override;
+ void ClearStackFrames() override;
- static bool
- ThreadIDIsValid (lldb::tid_t thread)
- {
- return thread != 0;
- }
+ static bool ThreadIDIsValid(lldb::tid_t thread) { return thread != 0; }
- const char *
- GetName() override
- {
- if (m_thread_name.empty())
- return NULL;
- return m_thread_name.c_str();
- }
+ const char *GetName() override {
+ if (m_thread_name.empty())
+ return NULL;
+ return m_thread_name.c_str();
+ }
- void
- SetName(const char *name) override
- {
- if (name && name[0])
- m_thread_name.assign (name);
- else
- m_thread_name.clear();
- }
+ void SetName(const char *name) override {
+ if (name && name[0])
+ m_thread_name.assign(name);
+ else
+ m_thread_name.clear();
+ }
protected:
- //------------------------------------------------------------------
- // Member variables.
- //------------------------------------------------------------------
- std::string m_thread_name;
- lldb::RegisterContextSP m_thread_reg_ctx_sp;
+ //------------------------------------------------------------------
+ // Member variables.
+ //------------------------------------------------------------------
+ std::string m_thread_name;
+ lldb::RegisterContextSP m_thread_reg_ctx_sp;
- int m_signo;
+ int m_signo;
- lldb_private::DataExtractor m_gpregset_data;
- lldb_private::DataExtractor m_fpregset_data;
- lldb_private::DataExtractor m_vregset_data;
+ lldb_private::DataExtractor m_gpregset_data;
+ lldb_private::DataExtractor m_fpregset_data;
+ lldb_private::DataExtractor m_vregset_data;
- bool CalculateStopInfo() override;
+ bool CalculateStopInfo() override;
};
#endif // liblldb_ThreadElfCore_h_
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-21 10:08:52 +0000