forked from Imagelibrary/binutils-gdb
1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
299 lines
8.7 KiB
C
299 lines
8.7 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2017-2024 Free Software Foundation, Inc.
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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 of the License, or
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(at your option) 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, see <http://www.gnu.org/licenses/>. */
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#include <cpuid.h>
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#include <stdint.h>
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/* 0 if the CPU supports rdrand and non-zero otherwise. */
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static unsigned int supports_rdrand;
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/* 0 if the CPU supports rdseed and non-zero otherwise. */
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static unsigned int supports_rdseed;
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/* Check supported features and set globals accordingly. The globals
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can be used to prevent unsupported tests from running. */
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static void
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check_supported_features (void)
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{
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unsigned int rdrand_mask = (1 << 30);
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unsigned int rdseed_mask = (1 << 18);
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unsigned int eax, ebx, ecx, edx;
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unsigned int vendor;
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unsigned int max_level;
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max_level = __get_cpuid_max (0, &vendor);
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if (max_level < 1)
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return;
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__cpuid (1, eax, ebx, ecx, edx);
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supports_rdrand = ((ecx & rdrand_mask) == rdrand_mask);
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if (max_level >= 7)
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{
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__cpuid_count (7, 0, eax, ebx, ecx, edx);
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supports_rdseed = ((ebx & rdseed_mask) == rdseed_mask);
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}
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}
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/* Test rdrand support for various output registers. */
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void
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rdrand (void)
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{
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/* Get a random number from the rdrand assembly instruction. */
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register uint64_t number;
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if (!supports_rdrand)
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return;
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/* 16-bit random numbers. */
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__asm__ volatile ("rdrand %%ax;": : : "%ax");
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__asm__ volatile ("rdrand %%bx;": : : "%bx");
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__asm__ volatile ("rdrand %%cx;": : : "%cx");
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__asm__ volatile ("rdrand %%dx;": : : "%dx");
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__asm__ volatile ("mov %%di, %%ax;\n\
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rdrand %%di;\n\
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mov %%ax, %%di;" : : : "%ax");
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__asm__ volatile ("mov %%si, %%ax;\n\
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rdrand %%si;\n\
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mov %%ax, %%si;" : : : "%ax");
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__asm__ volatile ("mov %%bp, %%ax;\n\
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rdrand %%bp;\n\
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mov %%ax, %%bp;" : : : "%ax");
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__asm__ volatile ("mov %%sp, %%ax;\n\
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rdrand %%sp;\n\
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mov %%ax, %%sp;" : : : "%ax");
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#ifdef __x86_64__
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__asm__ volatile ("rdrand %%r8w;": : : "%r8");
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__asm__ volatile ("rdrand %%r9w;": : : "%r9");
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__asm__ volatile ("rdrand %%r10w;": : : "%r10");
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__asm__ volatile ("rdrand %%r11w;": : : "%r11");
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__asm__ volatile ("rdrand %%r12w;": : : "%r12");
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__asm__ volatile ("rdrand %%r13w;": : : "%r13");
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__asm__ volatile ("rdrand %%r14w;": : : "%r14");
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__asm__ volatile ("rdrand %%r15w;": : : "%r15");
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#endif
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/* 32-bit random numbers. */
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__asm__ volatile ("rdrand %%eax;": : : "%eax");
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__asm__ volatile ("rdrand %%ebx;": : : "%ebx");
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__asm__ volatile ("rdrand %%ecx;": : : "%ecx");
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__asm__ volatile ("rdrand %%edx;": : : "%edx");
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#ifdef __x86_64__
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__asm__ volatile ("mov %%rdi, %%rax;\n\
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rdrand %%edi;\n\
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mov %%rax, %%rdi;" : : : "%rax");
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__asm__ volatile ("mov %%rsi, %%rax;\n\
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rdrand %%esi;\n\
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mov %%rax, %%rsi;" : : : "%rax");
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__asm__ volatile ("mov %%rbp, %%rax;\n\
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rdrand %%ebp;\n\
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mov %%rax, %%rbp;" : : : "%rax");
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__asm__ volatile ("mov %%rsp, %%rax;\n\
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rdrand %%esp;\n\
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mov %%rax, %%rsp;" : : : "%rax");
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__asm__ volatile ("rdrand %%r8d;": : : "%r8");
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__asm__ volatile ("rdrand %%r9d;": : : "%r9");
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__asm__ volatile ("rdrand %%r10d;": : : "%r10");
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__asm__ volatile ("rdrand %%r11d;": : : "%r11");
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__asm__ volatile ("rdrand %%r12d;": : : "%r12");
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__asm__ volatile ("rdrand %%r13d;": : : "%r13");
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__asm__ volatile ("rdrand %%r14d;": : : "%r14");
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__asm__ volatile ("rdrand %%r15d;": : : "%r15");
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/* 64-bit random numbers. */
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__asm__ volatile ("rdrand %%rax;": : : "%rax");
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__asm__ volatile ("rdrand %%rbx;": : : "%rbx");
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__asm__ volatile ("rdrand %%rcx;": : : "%rcx");
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__asm__ volatile ("rdrand %%rdx;": : : "%rdx");
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__asm__ volatile ("mov %%rdi, %%rax;\n\
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rdrand %%rdi;\n\
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mov %%rax, %%rdi;" : : : "%rax");
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__asm__ volatile ("mov %%rsi, %%rax;\n\
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rdrand %%rsi;\n\
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mov %%rax, %%rsi;" : : : "%rax");
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__asm__ volatile ("mov %%rbp, %%rax;\n\
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rdrand %%rbp;\n\
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mov %%rax, %%rbp;" : : : "%rax");
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__asm__ volatile ("mov %%rsp, %%rax;\n\
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rdrand %%rsp;\n\
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mov %%rax, %%rsp;" : : : "%rax");
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__asm__ volatile ("rdrand %%r8;": : : "%r8");
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__asm__ volatile ("rdrand %%r9;": : : "%r9");
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__asm__ volatile ("rdrand %%r10;": : : "%r10");
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__asm__ volatile ("rdrand %%r11;": : : "%r11");
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__asm__ volatile ("rdrand %%r12;": : : "%r12");
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__asm__ volatile ("rdrand %%r13;": : : "%r13");
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__asm__ volatile ("rdrand %%r14;": : : "%r14");
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__asm__ volatile ("rdrand %%r15;": : : "%r15");
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#endif
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}
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/* Test rdseed support for various output registers. */
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void
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rdseed (void)
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{
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/* Get a random seed from the rdseed assembly instruction. */
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register long seed;
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if (!supports_rdseed)
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return;
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/* 16-bit random seeds. */
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__asm__ volatile ("rdseed %%ax;": : : "%ax");
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__asm__ volatile ("rdseed %%bx;": : : "%bx");
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__asm__ volatile ("rdseed %%cx;": : : "%cx");
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__asm__ volatile ("rdseed %%dx;": : : "%dx");
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__asm__ volatile ("mov %%di, %%ax;\n\
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rdseed %%di;\n\
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mov %%ax, %%di;" : : : "%ax");
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__asm__ volatile ("mov %%si, %%ax;\n\
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rdseed %%si;\n\
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mov %%ax, %%si;" : : : "%ax");
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__asm__ volatile ("mov %%bp, %%ax;\n\
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rdseed %%bp;\n\
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mov %%ax, %%bp;" : : : "%ax");
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__asm__ volatile ("mov %%sp, %%ax;\n\
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rdseed %%sp;\n\
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mov %%ax, %%sp;" : : : "%ax");
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#ifdef __x86_64__
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__asm__ volatile ("rdseed %%r8w;": : : "%r8");
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__asm__ volatile ("rdseed %%r9w;": : : "%r9");
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__asm__ volatile ("rdseed %%r10w;": : : "%r10");
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__asm__ volatile ("rdseed %%r11w;": : : "%r11");
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__asm__ volatile ("rdseed %%r12w;": : : "%r12");
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__asm__ volatile ("rdseed %%r13w;": : : "%r13");
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__asm__ volatile ("rdseed %%r14w;": : : "%r14");
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__asm__ volatile ("rdseed %%r15w;": : : "%r15");
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#endif
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/* 32-bit random seeds. */
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__asm__ volatile ("rdseed %%eax;": : : "%eax");
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__asm__ volatile ("rdseed %%ebx;": : : "%ebx");
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__asm__ volatile ("rdseed %%ecx;": : : "%ecx");
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__asm__ volatile ("rdseed %%edx;": : : "%edx");
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#ifdef __x86_64__
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__asm__ volatile ("mov %%rdi, %%rax;\n\
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rdseed %%edi;\n\
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mov %%rax, %%rdi;" : : : "%rax");
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__asm__ volatile ("mov %%rsi, %%rax;\n\
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rdseed %%esi;\n\
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mov %%rax, %%rsi;" : : : "%rax");
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__asm__ volatile ("mov %%rbp, %%rax;\n\
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rdseed %%ebp;\n\
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mov %%rax, %%rbp;" : : : "%rax");
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__asm__ volatile ("mov %%rsp, %%rax;\n\
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rdseed %%esp;\n\
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mov %%rax, %%rsp;" : : : "%rax");
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__asm__ volatile ("rdseed %%r8d;": : : "%r8");
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__asm__ volatile ("rdseed %%r9d;": : : "%r9");
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__asm__ volatile ("rdseed %%r10d;": : : "%r10");
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__asm__ volatile ("rdseed %%r11d;": : : "%r11");
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__asm__ volatile ("rdseed %%r12d;": : : "%r12");
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__asm__ volatile ("rdseed %%r13d;": : : "%r13");
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__asm__ volatile ("rdseed %%r14d;": : : "%r14");
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__asm__ volatile ("rdseed %%r15d;": : : "%r15");
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/* 64-bit random seeds. */
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__asm__ volatile ("rdseed %%rax;": : : "%rax");
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__asm__ volatile ("rdseed %%rbx;": : : "%rbx");
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__asm__ volatile ("rdseed %%rcx;": : : "%rcx");
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__asm__ volatile ("rdseed %%rdx;": : : "%rdx");
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__asm__ volatile ("mov %%rdi, %%rax;\n\
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rdseed %%rdi;\n\
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mov %%rax, %%rdi;" : : : "%rax");
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__asm__ volatile ("mov %%rsi, %%rax;\n\
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rdseed %%rsi;\n\
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mov %%rax, %%rsi;" : : : "%rax");
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__asm__ volatile ("mov %%rbp, %%rax;\n\
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rdseed %%rbp;\n\
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mov %%rax, %%rbp;" : : : "%rax");
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__asm__ volatile ("mov %%rsp, %%rax;\n\
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rdseed %%rsp;\n\
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mov %%rax, %%rsp;" : : : "%rax");
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__asm__ volatile ("rdseed %%r8;": : : "%r8");
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__asm__ volatile ("rdseed %%r9;": : : "%r9");
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__asm__ volatile ("rdseed %%r10;": : : "%r10");
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__asm__ volatile ("rdseed %%r11;": : : "%r11");
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__asm__ volatile ("rdseed %%r12;": : : "%r12");
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__asm__ volatile ("rdseed %%r13;": : : "%r13");
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__asm__ volatile ("rdseed %%r14;": : : "%r14");
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__asm__ volatile ("rdseed %%r15;": : : "%r15");
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#endif
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}
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/* Test rdtscp support. */
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void
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rdtscp (void)
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{
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#ifdef __x86_64__
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__asm__ volatile ("rdtscp");
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#endif
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}
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/* Initialize arch-specific bits. */
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static void
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initialize (void)
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{
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/* Initialize supported features. */
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check_supported_features ();
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}
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/* Functions testing instruction decodings. GDB will test all of these. */
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static testcase_ftype testcases[] =
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{
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rdrand,
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rdseed,
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rdtscp
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};
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