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page_cache: auto-create workdir files or resume based on existing files

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- relieve frontend from having to create these files
- perhaps add some checks for resuming from existing page_cache files
This commit is contained in:
Steffen Schulz 2021-08-06 07:51:16 -07:00
parent 6b008a1be4
commit b899572377
3 changed files with 4 additions and 28 deletions
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24
nyx/interface.c
View File

@ -260,30 +260,6 @@ static bool verify_workdir_state(nyx_interface_state *s, Error **errp){
}
free(tmp);
assert(asprintf(&tmp, "%s/page_cache.lock", workdir) != -1);
if (!file_exits(tmp)){
fprintf(stderr, "%s does not exist...", tmp);
free(tmp);
return false;
}
free(tmp);
assert(asprintf(&tmp, "%s/page_cache.addr", workdir) != -1);
if (!file_exits(tmp)){
fprintf(stderr, "%s does not exist...\n", tmp);
free(tmp);
return false;
}
free(tmp);
assert(asprintf(&tmp, "%s/page_cache.dump", workdir) != -1);
if (!file_exits(tmp)){
fprintf(stderr, "%s does not exist...\n", tmp);
free(tmp);
return false;
}
free(tmp);
assert(asprintf(&tmp, "%s/page_cache", workdir) != -1);
init_page_cache(tmp);

6
nyx/page_cache.c
View File

@ -359,12 +359,12 @@ page_cache_t* page_cache_new(const char* cache_file, uint8_t disassembler_word_w
self->lookup = kh_init(PC_CACHE);
self->fd_page_file = open(tmp1, O_CLOEXEC | O_RDWR, S_IRWXU);
self->fd_address_file = open(tmp2, O_CLOEXEC | O_RDWR, S_IRWXU);
self->fd_page_file = open(tmp1, O_CLOEXEC | O_CREAT | O_RDWR, 0644);
self->fd_address_file = open(tmp2, O_CLOEXEC | O_CREAT | O_RDWR, 0644);
#ifndef STANDALONE_DECODER
self->cpu = cpu;
self->fd_lock = open(tmp3, O_CLOEXEC);
self->fd_lock = open(tmp3, O_CLOEXEC | O_CREAT, 0644);
assert(self->fd_lock > 0);
#else
if(self->fd_page_file == -1 || self->fd_address_file == -1){

2
nyx/pt.c
View File

@ -58,7 +58,7 @@ bool should_dump_pt_trace= false; /* dump PT trace as returned from HW */
void pt_open_pt_trace_file(char* filename){
printf("using pt trace at %s",filename);
pt_trace_dump_fd = open(filename, O_WRONLY);
pt_trace_dump_fd = open(filename, O_CREAT|O_TRUNC|O_WRONLY, 0644);
should_dump_pt_trace = true;
assert(pt_trace_dump_fd >= 0);
}