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Implement rz_sys_backtrace() for Windows/MSVC (#5784)

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* Implement rz_sys_backtrace for Windows/MSVC
* Add dbghelp.lib to dependency list
This commit is contained in:
Anton Angelov 2026-01-12 18:55:20 +02:00 committed by GitHub
parent c0817b895c
commit 602781b2dc
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GPG key ID: B5690EEEBB952194
2 changed files with 49 additions and 1 deletions
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49
librz/util/sys.c
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@ -91,6 +91,7 @@ extern char **environ;
#define TMP_BUFSIZE 4096
#ifdef _MSC_VER
#include <psapi.h>
#include <dbghelp.h>
#include <process.h> // to allow getpid under windows msvc compilation
#include <direct.h> // to allow getcwd under windows msvc compilation
#endif /* _MSC_VER */
@ -353,7 +354,53 @@ RZ_API void rz_sys_backtrace(void) {
}
#else
#ifdef _MSC_VER
#pragma message("TODO: rz_sys_backtrace : unimplemented")
SymSetOptions(SYMOPT_UNDNAME | SYMOPT_DEFERRED_LOADS);
HANDLE process = GetCurrentProcess();
if (!SymInitialize(process, NULL, TRUE)) {
eprintf("SymInitialize() failed (%d), no backtrace will be generated\n", GetLastError());
return;
}
void *stack[64];
ut16 frame_count = CaptureStackBackTrace(0, 64, stack, NULL);
eprintf("Tracing %" PFMT32u " stack frames:\n", frame_count);
ut8 *buffer = malloc(sizeof(SYMBOL_INFO) + MAX_SYM_NAME * sizeof(TCHAR));
if (!buffer) {
eprintf("malloc failed, no backtrace will be generated\n");
SymCleanup(process);
return;
}
SYMBOL_INFO *symbol = (SYMBOL_INFO *)buffer;
symbol->SizeOfStruct = sizeof(SYMBOL_INFO);
symbol->MaxNameLen = MAX_SYM_NAME;
for (ut16 i = 0; i < frame_count; i++) {
ut64 offset_from_sym = 0;
ut32 line_displacement = 0;
IMAGEHLP_LINE64 line = { .SizeOfStruct = sizeof(IMAGEHLP_LINE64) };
if (!SymFromAddr(process, (utptr)(stack[i]), &offset_from_sym, symbol)) {
// Print only symbol name + pc/rip address
eprintf(" [%" PFMT32u "]: 0x%" PFMT64x "\n", i, (ut64)(stack[i]));
continue;
}
if (SymGetLineFromAddr64(process, (utptr)(stack[i]), &line_displacement, &line)) {
// Source file and line details available
eprintf(" [%" PFMT32u "]: %s() at %s:%" PFMT32u "\n", i, symbol->Name, line.FileName, line.LineNumber);
} else {
// Print only symbol name + offset from symbol
eprintf(" [%" PFMT32u "]: %s()+0x%" PFMT64x "\n", i, symbol->Name, offset_from_sym);
}
}
free(buffer);
SymCleanup(process);
#else
#warning TODO: rz_sys_backtrace : unimplemented
#endif

1
meson.build
View file

@ -51,6 +51,7 @@ if host_machine.system() == 'windows'
cc.find_library('ws2_32'),
cc.find_library('wininet'),
cc.find_library('psapi'),
cc.find_library('dbghelp'),
]
endif
platform_inc = include_directories(platform_inc)