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/* minidump_format.h: A cross-platform reimplementation of minidump-related
* portions of DbgHelp.h from the Windows Platform SDK.
*
* (This is C99 source, please don't corrupt it with C++.)
*
* This file contains the necessary definitions to read minidump files
* produced on RISCV and RISCV64. These files may be read on any platform
* provided that the alignments of these structures on the processing system
* are identical to the alignments of these structures on the producing
* system. For this reason, precise-sized types are used. The structures
* defined by this file have been laid out to minimize alignment problems by
* ensuring that all members are aligned on their natural boundaries.
* In some cases, tail-padding may be significant when different ABIs specify
* different tail-padding behaviors. To avoid problems when reading or
* writing affected structures, MD_*_SIZE macros are provided where needed,
* containing the useful size of the structures without padding.
*
* Structures that are defined by Microsoft to contain a zero-length array
* are instead defined here to contain an array with one element, as
* zero-length arrays are forbidden by standard C and C++. In these cases,
* *_minsize constants are provided to be used in place of sizeof. For a
* cleaner interface to these sizes when using C++, see minidump_size.h.
*
* These structures are also sufficient to populate minidump files.
*
* Because precise data type sizes are crucial for this implementation to
* function properly and portably, a set of primitive types with known sizes
* are used as the basis of each structure defined by this file.
*
* Author: Iacopo Colonnelli
*/
/*
* RISCV and RISCV64 support
*/
#ifndef GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_RISCV_H__
#define GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_RISCV_H__
#include "google_breakpad/common/breakpad_types.h"
#define MD_FLOATINGSAVEAREA_RISCV_FPR_COUNT 32
#if defined(__riscv)
# if __riscv_flen == 32
typedef uint32_t riscv_fpr_size;
# elif __riscv_flen == 64
typedef uint64_t riscv_fpr_size;
# elif __riscv_flen == 128
typedef uint128_struct riscv_fpr_size;
# else
# error "Unexpected __riscv_flen"
# endif
#else
typedef uint32_t riscv_fpr_size;
#endif
#define MD_CONTEXT_RISCV_GPR_COUNT 32
typedef struct {
/* 32 floating point registers, f0 .. f31. */
riscv_fpr_size regs[MD_FLOATINGSAVEAREA_RISCV_FPR_COUNT];
uint32_t fpcsr;
} MDFloatingSaveAreaRISCV;
enum MDRISCVRegisterNumbers {
MD_CONTEXT_RISCV_REG_PC = 0,
MD_CONTEXT_RISCV_REG_RA = 1,
MD_CONTEXT_RISCV_REG_SP = 2,
};
/* For (MDRawContextRISCV).context_flags. These values indicate the type of
* context stored in the structure. */
#define MD_CONTEXT_RISCV 0x00800000
#define MD_CONTEXT_RISCV_INTEGER (MD_CONTEXT_RISCV | 0x00000001)
#define MD_CONTEXT_RISCV_FLOATING_POINT (MD_CONTEXT_RISCV | 0x00000004)
#define MD_CONTEXT_RISCV_FULL (MD_CONTEXT_RISCV_INTEGER | \
MD_CONTEXT_RISCV_FLOATING_POINT)
typedef struct {
/* Determines which fields of this struct are populated */
uint32_t context_flags;
uint32_t pc;
uint32_t ra;
uint32_t sp;
uint32_t gp;
uint32_t tp;
uint32_t t0;
uint32_t t1;
uint32_t t2;
uint32_t s0;
uint32_t s1;
uint32_t a0;
uint32_t a1;
uint32_t a2;
uint32_t a3;
uint32_t a4;
uint32_t a5;
uint32_t a6;
uint32_t a7;
uint32_t s2;
uint32_t s3;
uint32_t s4;
uint32_t s5;
uint32_t s6;
uint32_t s7;
uint32_t s8;
uint32_t s9;
uint32_t s10;
uint32_t s11;
uint32_t t3;
uint32_t t4;
uint32_t t5;
uint32_t t6;
MDFloatingSaveAreaRISCV float_save;
} MDRawContextRISCV;
/* For (MDRawContextRISCV64).context_flags. These values indicate the type of
* context stored in the structure. */
#define MD_CONTEXT_RISCV64 0x08000000
#define MD_CONTEXT_RISCV64_INTEGER (MD_CONTEXT_RISCV64 | 0x00000001)
#define MD_CONTEXT_RISCV64_FLOATING_POINT (MD_CONTEXT_RISCV64 | 0x00000004)
#define MD_CONTEXT_RISCV64_FULL (MD_CONTEXT_RISCV64_INTEGER | \
MD_CONTEXT_RISCV64_FLOATING_POINT)
typedef struct {
/* Determines which fields of this struct are populated */
uint32_t context_flags;
uint64_t pc;
uint64_t ra;
uint64_t sp;
uint64_t gp;
uint64_t tp;
uint64_t t0;
uint64_t t1;
uint64_t t2;
uint64_t s0;
uint64_t s1;
uint64_t a0;
uint64_t a1;
uint64_t a2;
uint64_t a3;
uint64_t a4;
uint64_t a5;
uint64_t a6;
uint64_t a7;
uint64_t s2;
uint64_t s3;
uint64_t s4;
uint64_t s5;
uint64_t s6;
uint64_t s7;
uint64_t s8;
uint64_t s9;
uint64_t s10;
uint64_t s11;
uint64_t t3;
uint64_t t4;
uint64_t t5;
uint64_t t6;
MDFloatingSaveAreaRISCV float_save;
} MDRawContextRISCV64;
#endif /* GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_RISCV_H__ */
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