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762c38d552
ChangeLog: Add target riscv to --enable-gprofng.
2024-07-04 Yixuan Chen <chenyixuan@iscas.ac.cn>
* configure: Add riscv.
* configure.ac: Add riscv.
gprofng/ChangeLog: Minimal support gprofng for riscv.
2024-07-04 Yixuan Chen <chenyixuan@iscas.ac.cn>
* gprofng/common/core_pcbe.c (core_pcbe_init): Add RISC-V vendor conditon.
(defined): Add riscv.
* gprofng/common/cpuid.c (defined): Add risc-v hwprobe.
* gprofng/common/gp-defs.h (TOK_A_RISCV): Add riscv.
(defined): Add riscv.
(ARCH_RISCV): Add riscv.
* gprofng/common/hwc_cpus.h: Add RISC-V vendor.
* gprofng/common/hwcfuncs.h (HW_INTERVAL_TYPE): Remove useless defination.
* gprofng/configure: Add riscv.
* gprofng/configure.ac: Add riscv.
* gprofng/libcollector/hwprofile.h (ARCH): Add RISC-V register.
(CONTEXT_PC): Add RISC-V register.
(CONTEXT_FP): Add RISC-V register.
(CONTEXT_SP): Add RISC-V register.
(SETFUNCTIONCONTEXT):
* gprofng/libcollector/libcol_util.c (__collector_util_init): Fix libc open condition.
* gprofng/libcollector/libcol_util.h (ARCH): Add RISC-V.
* gprofng/libcollector/unwind.c (ARCH): Add RISC-V register.
(GET_PC): Add RISC-V register.
(GET_SP): Add RISC-V register.
(GET_FP): Add RISC-V register.
(FILL_CONTEXT):
* gprofng/src/DbeSession.cc (ARCH): Add RISC-V.
* gprofng/src/Disasm.cc (Disasm::disasm_open): Add RISC-V.
* gprofng/src/Experiment.cc (Experiment::ExperimentHandler::startElement): Add RISC-V.
* gprofng/src/checks.cc (ARCH): Add RISC-V.
* gprofng/src/collctrl.cc (defined): Set risc-v cpu frequency to 1000MHz as default for now, will fix when I find a better method to get cpu frequency.
(read_cpuinfo): Add "mvendorid" condition according to risc-v /proc/cpuinfo file content.
* gprofng/src/dbe_types.h (enum Platform_t): Add RISC-V.
246 lines
9.3 KiB
C
246 lines
9.3 KiB
C
/* Copyright (C) 2021-2024 Free Software Foundation, Inc.
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Contributed by Oracle.
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This file is part of GNU Binutils.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/* Hardware counter profiling */
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#ifndef __HWCFUNCS_H
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#define __HWCFUNCS_H
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#ifdef LIBCOLLECTOR_SRC /* running in libcollector */
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#define hwcfuncs_int_logerr __collector_hwcfuncs_int_logerr
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#define hwcfuncs_parse_ctr __collector_hwcfuncs_parse_ctr
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#define hwcfuncs_parse_attrs __collector_hwcfuncs_parse_attrs
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#define hwcfuncs_bind_descriptor __collector_hwcfuncs_bind_descriptor
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#define hwcfuncs_bind_hwcentry __collector_hwcfuncs_bind_hwcentry
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#define hwcfuncs_get_ctrs __collector_hwcfuncs_get_ctrs
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#define hwcfuncs_errmsg_get __collector_hwcfuncs_errmsg_get
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#endif /* --- LIBCOLLECTOR_SRC --- */
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#include <signal.h> /* siginfo_t */
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#include <limits.h> /* UINT64_t */
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#include <sys/types.h>
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#include <stdint.h>
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#include "hwcentry.h" /* for Hwcentry type */
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#include "gp-time.h"
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typedef unsigned int uint_t;
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*---------------------------------------------------------------------------*/
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/* compile options */
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#define HWC_DEBUG 0 /* 0/1 to enable extra HWC debug */
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/*---------------------------------------------------------------------------*/
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/* typedefs */
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/* generic hw event */
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typedef struct _hwc_event_t
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{ /* generalized counter event */
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hrtime_t ce_hrt; /* gethrtime() */
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uint64_t ce_pic[MAX_PICS]; /* counter samples or start values */
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} hwc_event_t;
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/* supplementary data that accompanies some hw events */
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typedef struct
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{ /* supplementary data fields */
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uint64_t smpl_pc; /* pc related to event */
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uint64_t smpl_data_source; /* chip-specific data source encoding */
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uint64_t smpl_latency; /* latency related to event */
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uint64_t smpl_mem_addr; /* memory address related to event */
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} hwc_sample_t;
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#define HWCFUNCS_INVALID_U64 0xFEEDBEEFDEADBEEFllu /* identifies fields as unused */
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typedef struct { /* supplementary data fields */
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hwc_sample_t sample[MAX_PICS]; /* counter samples or start values */
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} hwc_event_samples_t;
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#define HWCFUNCS_SAMPLE_RESET(sample) \
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do { \
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(sample)->smpl_pc =HWCFUNCS_INVALID_U64; \
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(sample)->smpl_data_source =HWCFUNCS_INVALID_U64; \
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(sample)->smpl_latency =HWCFUNCS_INVALID_U64; \
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(sample)->smpl_mem_addr =HWCFUNCS_INVALID_U64; \
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} while(0)
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#define HWCFUNCS_SAMPLE_IS_RESET(sample) \
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( \
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(sample)->smpl_pc ==HWCFUNCS_INVALID_U64 && \
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(sample)->smpl_data_source==HWCFUNCS_INVALID_U64 && \
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(sample)->smpl_latency ==HWCFUNCS_INVALID_U64 && \
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(sample)->smpl_mem_addr ==HWCFUNCS_INVALID_U64 \
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)
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/*---------------------------------------------------------------------------*/
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/* macros */
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#define HW_INTERVAL_MAX UINT64_MAX
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#define HW_INTERVAL_PRESET(x) (HW_INTERVAL_MAX - ((uint64_t)(x) - 1))
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/* parsing */
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#define HWCFUNCS_MAX_ATTRS 20
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#define HWCFUNCS_PARSE_ATTR '~'
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#define HWCFUNCS_PARSE_EQUAL '='
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#define HWCFUNCS_PARSE_BACKTRACK '+'
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#define HWCFUNCS_PARSE_BACKTRACK_OFF '-'
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#define HWCFUNCS_PARSE_REGNUM '/'
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#define HWCFUNCS_PARSE_VALUE ','
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/* error codes */
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#define HWCFUNCS_ERROR_GENERIC (-1)
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#define HWCFUNCS_ERROR_NOT_SUPPORTED (-2)
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#define HWCFUNCS_ERROR_ALREADY_CALLED (-3)
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#define HWCFUNCS_ERROR_HWCINIT (-4)
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#define HWCFUNCS_ERROR_HWCARGS (-5)
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#define HWCFUNCS_ERROR_MEMORY (-6)
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#define HWCFUNCS_ERROR_UNAVAIL (-7)
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#define HWCFUNCS_ERROR_UNEXPECTED (-99)
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/*---------------------------------------------------------------------------*/
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/* prototypes */
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typedef void (*hwcfuncs_abort_fn_t) (int errnum, const char *msg);
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extern void hwcfuncs_int_logerr(const char *format,...);
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/* Log an error to the internal error buffer. See hwcfuncs_errmsg_get().
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Note: Not MT-safe; don't even enable logging in an MT environment.
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Recommend using this call only during init.
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Note: when a libcpc call fails, it may automatically call
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cpcN_capture_errmsg() to log the error message in the same internal buffer.
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Recommend using this call only for non-cpc failures.
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*/
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#define HWCFUNCS_SUPPORT_OVERFLOW_PROFILING 0x01llu
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#define HWCFUNCS_SUPPORT_PEBS_SAMPLING 0x02llu
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#define HWCFUNCS_SUPPORT_OVERFLOW_CTR_ID 0x04llu // OS identifies which counter overflowed
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#define SUPPORT_MEMORYSPACE_PROFILING 0x08
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/* get info about session
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Input:
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<cpuver>: if not NULL, returns value of CPC cpu version
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<cciname>: if not NULL, returns name of CPU
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<npics>: if not NULL, returns maximum # of HWCs
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<docref>: if not NULL, returns documentation reference
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<support>: if not NULL, returns bitmask (see above) of hwc support
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Return: none
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*/
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typedef void* (*hwcfuncs_tsd_get_fn_t) (void);
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typedef void (hwcf_hwc_cb_t) (uint_t cpcregno, const char *name);
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typedef void (hwcf_attr_cb_t) (const char *attr);
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extern void
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hwcfuncs_parse_ctr (const char *counter_def, int *pplus, char **pnameOnly,
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char **pattrs, char **pregstr, regno_t *pregno);
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/* Parse a counter definition string (value must already be stripped off).
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Input:
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<counter_def>: input whose format is
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[+|-]<countername>[~attrs...][/<regno>]
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pointers to return values: Any can be NULL.
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Return:
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<plus>: 1 if [+] is found, -1 if [-] is found, 0 otherwise
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<pnameonly>: strdup(<countername>)
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<pattrs>: strdup([~attrs...]) if specified, NULL otherwise.
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<pregstr>: strdup(/<regno>) if specified, NULL otherwise.
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<pregno>: <regno> if readable, REGNO_ANY if not specd, or -2 otherwise.
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*/
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typedef struct
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{
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char *ca_name;
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uint64_t ca_val;
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} hwcfuncs_attr_t; /* matches cpc_attr_t */
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void * hwcfuncs_parse_attrs (const char *countername,
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hwcfuncs_attr_t attrs[], unsigned max_attrs,
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uint_t *pnum_attrs, char **errstring);
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/* Extract the attribute fields from <countername>.
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Input:
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<countername>: string whose format is
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[+]<ctrname>[~attributes...][/<regno>][,...]
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<attrs>: array of attributes to be returned
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<max_attrs>: number of elements in <attrs>
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<pnum_attrs>: if not NULL, will return how many attrs were found.
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<errstring>: pointer to a buffer for storing error info, or NULL.
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Return: upon success, a pointer to an allocated copy of <countername>, or
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NULL if there's a failure. (A copy is made in order to provide storage
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for the ca_name fields in the <attrs> array.)
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The pointer should be freed when <attrs> is no longer in use.
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<attrs> will be filled in data from countername.
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<pnum_attrs> will have the number of elements in <attrs>. May be
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non-zero even if return value indicates an error.
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<errstring> NULL if no error, otherwise, a malloc'd GTXT string.
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*/
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extern int hwcfuncs_bind_descriptor (const char *defstring);
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/* Bind counters to resources.
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Input:
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<defstring>: string whose format is
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:%s:%s:0x%x:%d:%d,0x%x[:%s...repeat for each ctr]
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where the fields are:
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:<userName>:<internalCtr>:<register>:<timeoutVal>:<tag>:<memop>
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Return: 0 if successful
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HWCFUNCS_ERROR_HWCINIT if resources unavailable
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HWCFUNCS_ERROR_HWCARGS if counters were not specified correctly
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*/
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extern int hwcfuncs_bind_hwcentry (const Hwcentry *entries[],
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unsigned numctrs);
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/* Bind counters to resources.
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Input:
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<entries>: array of counters
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<numctrs>: number of items in <entries>
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Return: 0 if successful
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HWCFUNCS_ERROR_HWCINIT if resources unavailable
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HWCFUNCS_ERROR_HWCARGS if counters were not specified correctly
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*/
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extern Hwcentry **hwcfuncs_get_ctrs (unsigned *defcnt);
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/* Get descriptions of the currently bound counters.
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Input:
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<defcnt>: if not NULL, returns number of counter definitions.
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Return:
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table of counter definition pointers
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*/
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extern char *hwcfuncs_errmsg_get (char * buf, size_t bufsize,
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int enable_capture);
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/* Gets a recent HWC error message.
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To clear previous error messages and insure error message is enabled,
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call hwcfuncs_errmsg_get(NULL,0,1).
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Once enabled, one error is stored in an internal buffer. A call to this
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function will clear the buffer and allow a new message to be captured.
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Note: Not MT-safe - don't enable this feature in an MT environment.
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Input:
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<buf>: pointer to buffer or NULL.
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<bufsize>: size of <buf>
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<enable_capture>: 0 - disable buffering, 1 - enable buffering.
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Return: error string or an empty string.
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*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* ! __HWCFUNCS_H */
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