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std.debug.Coverage.resolveAddressesDwarf: assert sorted

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This commit is contained in:
Andrew Kelley 2024-08-13 19:29:55 -07:00
parent 022bca9b06
commit a726e09389
2 changed files with 6 additions and 0 deletions
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5
lib/std/debug/Coverage.zig
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@ -145,6 +145,7 @@ pub const ResolveAddressesDwarfError = Dwarf.ScanError;
pub fn resolveAddressesDwarf( pub fn resolveAddressesDwarf(
cov: *Coverage, cov: *Coverage,
gpa: Allocator, gpa: Allocator,
/// Asserts the addresses are in ascending order.
sorted_pc_addrs: []const u64, sorted_pc_addrs: []const u64,
/// Asserts its length equals length of `sorted_pc_addrs`. /// Asserts its length equals length of `sorted_pc_addrs`.
output: []SourceLocation, output: []SourceLocation,
@ -156,11 +157,15 @@ pub fn resolveAddressesDwarf(
var range_i: usize = 0; var range_i: usize = 0;
var range: *std.debug.Dwarf.Range = &d.ranges.items[0]; var range: *std.debug.Dwarf.Range = &d.ranges.items[0];
var line_table_i: usize = undefined; var line_table_i: usize = undefined;
var prev_pc: u64 = 0;
var prev_cu: ?*std.debug.Dwarf.CompileUnit = null; var prev_cu: ?*std.debug.Dwarf.CompileUnit = null;
// Protects directories and files tables from other threads. // Protects directories and files tables from other threads.
cov.mutex.lock(); cov.mutex.lock();
defer cov.mutex.unlock(); defer cov.mutex.unlock();
next_pc: for (sorted_pc_addrs, output) |pc, *out| { next_pc: for (sorted_pc_addrs, output) |pc, *out| {
assert(pc >= prev_pc);
prev_pc = pc;
while (pc >= range.end) { while (pc >= range.end) {
range_i += 1; range_i += 1;
if (range_i >= d.ranges.items.len) { if (range_i >= d.ranges.items.len) {

1
lib/std/debug/Info.zig
View File

@ -51,6 +51,7 @@ pub const ResolveAddressesError = Coverage.ResolveAddressesDwarfError;
pub fn resolveAddresses( pub fn resolveAddresses(
info: *Info, info: *Info,
gpa: Allocator, gpa: Allocator,
/// Asserts the addresses are in ascending order.
sorted_pc_addrs: []const u64, sorted_pc_addrs: []const u64,
/// Asserts its length equals length of `sorted_pc_addrs`. /// Asserts its length equals length of `sorted_pc_addrs`.
output: []SourceLocation, output: []SourceLocation,