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fix building v on alpine with musl libc

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This commit is contained in:
Delyan Angelov 2019-08-28 19:26:18 +03:00 committed by Alexander Medvednikov
parent fed9f01b2d
commit c92654a044
2 changed files with 12 additions and 5 deletions
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2
compiler/cheaders.v
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@ -23,6 +23,8 @@ CommonCHeaders = '
#ifdef __linux__ #ifdef __linux__
#include <execinfo.h> // backtrace and backtrace_symbols_fd #include <execinfo.h> // backtrace and backtrace_symbols_fd
#pragma weak backtrace
#pragma weak backtrace_symbols_fd
#endif #endif
#ifdef __linux__ #ifdef __linux__

15
vlib/builtin/builtin.v
View File

@ -19,16 +19,21 @@ fn on_panic(f fn (int) int) {
pub fn print_backtrace_skipping_top_frames(skipframes int) { pub fn print_backtrace_skipping_top_frames(skipframes int) {
$if mac { $if mac {
buffer := [100]voidptr buffer := [100]byteptr
nr_ptrs := C.backtrace(buffer, 100) nr_ptrs := C.backtrace(buffer, 100)
C.backtrace_symbols_fd(&buffer[skipframes], nr_ptrs-skipframes, 1) C.backtrace_symbols_fd(&buffer[skipframes], nr_ptrs-skipframes, 1)
return return
} }
$if linux { $if linux {
buffer := [100]voidptr if C.backtrace_symbols_fd != 0 {
nr_ptrs := C.backtrace(buffer, 100) buffer := [100]byteptr
C.backtrace_symbols_fd(&buffer[skipframes], nr_ptrs-skipframes, 1) nr_ptrs := C.backtrace(buffer, 100)
return C.backtrace_symbols_fd(&buffer[skipframes], nr_ptrs-skipframes, 1)
return
}else{
C.printf('backtrace_symbols_fd is missing, so printing backtraces is not available.\n')
C.printf('Some libc implementations like musl simply do not provide it.\n')
}
} }
C.printf('print_backtrace_skipping_top_frames is not implemented on this platform for now...\n') C.printf('print_backtrace_skipping_top_frames is not implemented on this platform for now...\n')
} }